Co-Diagnostics Inc.

05/12/2026 | Press release | Distributed by Public on 05/12/2026 14:31

Registration Statement - Specified Transactions (Form S-3)

As filed with the U.S. Securities and Exchange Commission on May 12, 2026

Registration No. 333-

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-3

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

CO-DIAGNOSTICS, INC.

(Exact name of registrant as specified in its charter)

Utah 46-2609396

(State or other jurisdiction of

incorporation or organization)

(I.R.S. Employer

Identification Number)

2401 S. Foothill Drive, Suite D

Salt Lake City, Utah 84109

(801) 438-1036

(Address, including zip code, and telephone number, including area code, of registrant's principal executive offices)

Brian Brown

Chief Financial Officer

Co-Diagnostics, Inc.

2401 S. Foothill Drive

Salt Lake City, Utah 84109

(801) 438-1036

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies to:

David F. Marx Esq.

Daniel P. Lyman Esq.

Dorsey & Whitney LLP

111 South Main Street, Suite 2100

Salt Lake City, Utah 84111

Kevin Ontiveros

Vice President and General Counsel

Co-Diagnostics, Inc.

2401 S. Foothill Drive

Salt Lake City, Utah 84109

Approximate date of commencement of proposed sale to the public: from time to time after the effective date of this registration statement.

If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box: ☐

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box. ☒

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ☐

If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☐ Accelerated filer ☐
Non-accelerated filer ☒ Smaller reporting company ☒
Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of Securities Act. ☐

The registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment that specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933 or until the registration statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.

The information in this prospectus is not complete and may be changed. We may not sell these securities or accept an offer to buy these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities, and it is not soliciting offers to buy these securities in any state where such offer or sale is not permitted.

SUBJECT TO COMPLETION, DATED MAY 12, 2026

PROSPECTUS

$150,000,000

Common Stock

Preferred Stock

Debt Securities

Warrants

Units

Rights

From time to time, we may offer and sell up to $150,000,000 of any combination of the securities described in this prospectus, either individually or in combination. We may also offer shares of common stock or preferred stock upon conversion of debt securities, shares of common stock upon conversion of preferred stock, or shares of common stock, shares of preferred stock or debt securities upon the exercise of warrants.

This prospectus provides a general description of the securities we may offer. Each time we sell securities, we will provide specific terms of the securities offered in a supplement to this prospectus. We may also authorize one or more free writing prospectuses to be provided to you in connection with these offerings. A prospectus supplement and any related free writing prospectus may also add, update or change information contained in this prospectus. You should carefully read this prospectus, the applicable prospectus supplement and any related free writing prospectus, as well as any documents incorporated by reference in this prospectus before you invest in any securities. This prospectus may not be used to consummate a sale of securities unless accompanied by an applicable prospectus supplement.

Our common stock is listed on the Nasdaq Capital Market under the symbol "CODX." On May 11, 2026, the last reported sale price for our common stock was $1.90 per share. The applicable prospectus supplement will contain information, where applicable, as to any other listing on the Nasdaq Capital Market or any securities market or other exchange of the securities, if any, covered by the prospectus supplement.

INVESTING IN OUR SECURITIES INVOLVES RISKS. YOU SHOULD REVIEW CAREFULLY THE RISKS AND UNCERTAINTIES DESCRIBED UNDER THE HEADING "RISK FACTORS" ON PAGE 5 AND CONTAINED IN THE APPLICABLE PROSPECTUS SUPPLEMENT AND ANY RELATED FREE WRITING PROSPECTUS AND UNDER SIMILAR HEADINGS IN THE OTHER DOCUMENTS THAT ARE INCORPORATED BY REFERENCE INTO THIS PROSPECTUS.

The securities may be sold directly to investors, through agents designated from time to time or to or through underwriters or dealers. For additional information on the methods of sale, you should refer to the section entitled "Plan of Distribution" in this prospectus. If any underwriters or agents are involved in the sale of any securities with respect to which this prospectus is being delivered, the names of such underwriters or agents and any applicable commissions or discounts and over-allotment options will be set forth in a prospectus supplement. The price to the public of such securities and the net proceeds we expect to receive from such sale will also be set forth in a prospectus supplement.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The date of this prospectus is , 2026

TABLE OF CONTENTS

Page
ABOUT THIS PROSPECTUS 1
CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS 2
PROSPECTUS SUMMARY 3
RISK FACTORS 5
USE OF PROCEEDS 5
DESCRIPTION OF CAPITAL Stock 5
DESCRIPTION OF DEBT SECURITIES 12
description of warrants 14
DESCRIPTION OF RIGHTS 16
description of units 17
FORMS OF SECURITIES 18
PLAN OF DISTRIBUTION 20
LEGAL MATTERS 22
EXPERTS 22
WHERE YOU CAN FIND MORE INFORMATION 23
INCORPORATION BY REFERENCE 23
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ABOUT THIS PROSPECTUS

In this prospectus, unless otherwise stated or unless the context otherwise requires, all references to "Co-Dx," "we," "us," "our," "our company," or "the Company" in this prospectus refer collectively to Co-Diagnostics, Inc., a Utah corporation, and its subsidiaries.

This prospectus is part of a registration statement that we filed with the Securities and Exchange Commission ("SEC"), utilizing a "shelf" registration process. Under this shelf registration process, we may sell any combination of the securities described in this prospectus in one or more offerings up to a total dollar amount of $150,000,000. This prospectus provides you with a general description of the securities we may offer. Each time we sell securities under this shelf registration, we will provide a prospectus supplement that will contain specific information about the terms of that offering. We may also authorize one or more free writing prospectuses to be provided to you that may contain material information relating to these offerings. The prospectus supplement and any related free writing prospectus that we may authorize to be provided to you may also add, update or change information contained in this prospectus or in any documents that we have incorporated by reference into this prospectus. You should read this prospectus, any applicable prospectus supplement and any related free writing prospectus, together with the information incorporated herein by reference as described under the heading "Incorporation by Reference."

You should rely only on the information that we have provided or incorporated by reference in this prospectus, any applicable prospectus supplement and any related free writing prospectus that we may authorize to be provided to you. We have not authorized anyone else to give any information or to make any representation other than those contained or incorporated by reference in this prospectus, any applicable prospectus supplement or any related free writing prospectus that we may authorize to be provided to you. You must not rely upon any information or representation not contained or incorporated by reference in this prospectus or any applicable prospectus supplement. This prospectus does not constitute an offer to sell or the solicitation of an offer to buy any securities other than the registered securities to which they relate, nor does this prospectus constitute an offer to sell or the solicitation of an offer to buy securities in any jurisdiction to any person to whom it is unlawful to make such offer or solicitation in such jurisdiction. You should not assume that the information contained in this prospectus, any applicable prospectus supplement or any related free writing prospectus is accurate on any date subsequent to the date set forth on the front of the document or that any information we have incorporated by reference is correct on any date subsequent to the date of the document incorporated by reference, even though this prospectus, any applicable prospectus supplement or any related free writing prospectus is delivered or securities sold on a later date.

This document contains references to trademarks, trade names and service marks belonging to other entities. Solely for convenience, trademarks, trade names and service marks referred to in this prospectus may appear without the ® or TM symbols, but such references are not intended to indicate, in any way, that the applicable licensor will not assert, to the fullest extent under applicable law, its rights to these trademarks and trade names. We do not intend our use or display of other companies' trade names, trademarks or service marks to imply a relationship with, or endorsement or sponsorship of us by, any other companies.

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus and the documents incorporated by reference contain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the "Securities Act"), and Section 21E of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), which involve risks and uncertainties. Forward-looking statements provide current expectations of future events based on certain assumptions and include any statement that does not directly relate to any historical or current fact. Forward-looking statements are based on our management's current beliefs, expectations and assumptions about future events, conditions and results and on information currently available to us. Discussions containing these forward-looking statements may be found, among other places, in the sections of this prospectus entitled "Prospectus Summary" and "Risk Factors."

All statements, other than statements of historical facts, included or incorporated herein regarding our strategy, future operations, financial position, future revenues, projected costs, plans, prospects and objectives are forward-looking statements. In some cases, you can identify forward-looking statements by terms such as "anticipate," "believe," "could," "estimate," "expect," "intend," "may," "plan," "potential," "predict," "project," "should," "will," "would" and similar expressions. These statements involve risks, uncertainties and other factors that may cause our actual results, performance, time frames or achievements to be materially different from any future results, performance, time frames or achievements expressed or implied by the forward-looking statements. Risks, uncertainties and other factors that might cause or contribute to such differences include, but are not limited to, those discussed in the section entitled "Risk Factors" in our most recent Annual Report on Form 10-K and subsequent filings with the SEC. Given these risks, uncertainties and other factors, many of which are beyond our control, you should not place undue reliance on these forward-looking statements.

In addition, past financial and/or operating performance is not necessarily a reliable indicator of future performance, and you should not use our historical performance to anticipate results or future period trends. We can give no assurances that any of the events anticipated by the forward-looking statements will occur or, if any of them do, what impact they will have on our results of operations and financial condition. Except as required by law, we assume no obligation to update these forward-looking statements publicly, or to revise any forward-looking statements to reflect events or developments occurring after the date of this prospectus, even if new information becomes available in the future.

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Prospectus Summary

This summary highlights selected information from this prospectus and does not contain all of the information that you need to consider in making your investment decision. You should carefully read the entire prospectus, including the risks of investing discussed under "Risk Factors" beginning on page 5, the information incorporated by reference, including our financial statements, and the exhibits to the registration statement of which this prospectus is a part.

Overview

We develop, manufacture and sell reagents used for diagnostic tests that function via the detection and/or analysis of nucleic acid molecules (DNA or RNA), including molecular tools for detection of infectious diseases. Our diagnostics systems enable dependable, low-cost, molecular testing for organisms and genetic diseases by automating or simplifying historically complex procedures in both the development and administration of tests. CODX's technical advance involves a novel, proprietary approach to polymerase chain reaction ("PCR") test design of primer and probe structure ("Co-Primers®") that dramatically reduces one of the key vexing issues of PCR amplification: the exponential growth of primer-dimer amplification (false positives) which adversely interferes with identification of the target DNA/RNA. Using our proprietary test design system and reagents, we have designed and obtained regulatory approval to sell PCR diagnostic tests for the detection of COVID-19, influenza, tuberculosis, hepatitis B and C, human papillomavirus, malaria, chikungunya, dengue, and the Zika virus. These initial diagnostic tests are cleared for use in clinical labs only and not for point-of-care or at-home use.

We have developed a portable diagnostic device and test system designed for point-of-care and at-home use. The system is comprised of our PCR instrument that we refer to as the Co-Dx™ PCR Pro™ instrument, our patent-pending diagnostic test cup system and a mobile application to be installed on the user's mobile device. We refer to the system as the "Co-Dx™ PCR platform" which has been designed to bring affordable, reliable polymerase chain reaction ("PCR") testing to patients in point-of-care and at-home settings. The Co-Dx PCR platform is subject to U.S. Food and Drug Administration ("FDA") review and is not available for sale at the time of this filing. In June 2024, we completed our first FDA application for 510(k) clearance for the Co-Dx™ PCR Pro™ instrument, the Co-Dx PCR COVID-19 Test, and the Co-Dx PCR mobile app for over-the-counter (OTC) use. Following engagement with the FDA during the review process, the Company voluntarily withdrew the 510(k) submission after discussions regarding the analytical approach for detecting potential degradation of a test component over its intended shelf life. While the Company believes that the matter identified during the review process could have been addressed through additional development and clinical validation activities, management determined that the capital and time required to resubmit the COVID-19 test for 510(k) clearance would be more effectively deployed toward development and clinical validation of the Co-Dx PCR Flu A/B, COVID-19, RSV multiplex test ("ABCR"). Moving focus to this test allows the Company to incorporate more recent Co-Dx PCR platform developments into the design and test manufacturing process. Management believes that a multiplex test targeting influenza A/B, COVID-19, and RSV better aligns with current clinical demand for comprehensive upper respiratory infection testing in point-of-care settings. Accordingly, clinical performance studies for the ABCR test are currently underway. There is no guarantee that our Co-Dx PCR platform will receive the necessary regulatory approvals for commercialization, or that, if regulatory approval is received, we will be able to successfully commercialize this platform.

Technology

We believe our proprietary and patented molecular diagnostics technology is paving the way for innovation in disease detection and life sciences research through our enhanced detection of genetic material. For various reasons, including owning our own platform, we believe we will be able to accomplish this faster and more economically than some competitors, allowing for significant margins while still positioning ourselves as a low-cost provider of molecular diagnostics and screening services. For example, we were the first US-based company to receive a CE-marking for a COVID-19 test in early 2020, as we worked to help slow the spread of the pandemic through our global network of distributors covering clinical labs in more than 50 countries. Our Logix Smart® COVID-19 test was designed, developed, submitted for regulatory approval and ready to be used as an in vitro diagnostic ("IVD") in countries that accept CE marking for regulatory clearance in a period of just over 30 days. This is a real-world example of how CODX technology can be used in an evolving epidemic or pandemic to get diagnostic tools in the hands of medical professionals in a timely manner. It can be similarly used to design a test for mutated strains of SARS-CoV-2 or other viruses should they not be detectable using currently available tests.

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In addition, continued development has demonstrated the unique properties of our Co-Primers technology that we believe makes it ideally suited for a variety of applications where specificity is key to optimal results, including multiplexing several targets, enhanced Single Nucleotide Polymorphism ("SNP") detection and enrichment for next generation sequencing.

Our scientists use the complex mathematics of DNA/RNA PCR test design to engineer and optimize PCR tests and to automate algorithms that rapidly screen millions of possible options to pinpoint the optimum design. The intellectual property we use in our business consists of the predictive mathematical algorithms and patented molecular structure used in the testing process, which together represent a major advance in PCR testing systems. CODX technologies are now protected by more than 20 granted or pending US and foreign patents, as well as certain trade secrets and copyrights. Ownership of our proprietary platform permits us the advantage of avoiding payment of patent royalties required by other PCR test systems, which may allow for the sale of diagnostic PCR tests at a lower price than competitors, while enabling us to maintain profit margins.

Our proprietary test design process involves identifying the optimal locations on the target genes for amplification and pairing the locations with the optimized primer and probe structure to achieve outputs that meet the design input requirements identified from market research. This is done by following planned and documented processes, procedures and testing. In other words, we use the data resulting from our tests to verify whether we succeeded in designing what we intended. Verification involves a series of testing that concludes that the product is ready to proceed to validation in an evaluation either in our laboratory or in an independent laboratory setting using initial production tests to confirm that the product as designed meets the user's needs.

Using our proprietary test design system and reagents, we have designed and obtained regulatory clearance in the European Community and in India (along with our joint venture, CoSara) to sell PCR diagnostic tests for the detection of COVID-19, influenza, tuberculosis, hepatitis B and C, human papillomavirus, malaria, chikungunya, dengue, and the Zika virus. In the United States, we obtained Emergency Use Authorization ("EUA") for our Logix Smart® COVID-19 detection test from the FDA, and we sell that test to qualified labs. In addition, our COVID-19 detection test and certain of our other suite of COVID-19 products have been cleared for sale in countries such as the United Kingdom, Australia, India, and Mexico by the regulatory bodies in those countries and have been registered for sale in many more countries. In connection with the sale of our tests we may sell diagnostic equipment from other manufacturers, including an OEM's PCR instrument which we refer to here as the "Co-Dx Box™".

In addition to testing for infectious disease, Co-Primers technology lends itself to identifying any section of a DNA or RNA strand that describes any type of genetic trait, which creates several significant applications. We, in conjunction with our customers, have designed tests that identify genetic traits in plant and animal genomes. We also have commercialized three multiplexed tests to test mosquitos for the presence of diseases they carry, which enables municipalities to concentrate their efforts in managing mosquito populations in specific areas where mosquitos carrying deadly viruses are known to breed.

Corporate Information

Our headquarters is located at 2401 S. Foothill Drive, Salt Lake City, Utah 84109 and our telephone number is (801) 438-1036. We maintain a website at https://www.co-dx.com. Information on the website is not incorporated by reference and is not a part of this prospectus.

Additional Information

For additional information related to our business and operations, please refer to the reports incorporated herein by reference, as described under the caption "Incorporation by Reference" on page 23 of this prospectus.

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The Securities We May Offer

We may offer shares of common stock and preferred stock, various series of debt securities and warrants to purchase any of such securities, either individually or in units, and rights to purchase shares of common stock, shares of preferred stock, or warrants, with a total value of up to $150,000,000 from time to time under this prospectus, together with any applicable prospectus supplement and related free writing prospectus, at prices and on terms to be determined by market conditions at the time of offering. Each time we offer a type or series of securities, we will provide a prospectus supplement that will describe the specific amounts, prices and other important terms of the securities. The prospectus supplement also may add, update or change information contained in this prospectus or in documents we have incorporated by reference into this prospectus. However, no prospectus supplement will fundamentally change the terms that are set forth in this prospectus or offer a security that is not registered and described in this prospectus at the time of its effectiveness.

This prospectus may not be used to consummate a sale of any securities unless it is accompanied by a prospectus supplement.

Nasdaq Capital Market Listing

Our common stock is listed on the Nasdaq Capital Market under the symbol "CODX." The applicable prospectus supplement will contain information, where applicable, as to other listings, if any, on the Nasdaq Capital Market or other securities exchange of the securities covered by the applicable prospectus supplement.

RISK FACTORS

An investment in our securities involves a high degree of risk. The prospectus supplement applicable to each offering of our securities will contain a discussion of the risks applicable to an investment in our securities. Prior to making a decision about investing in our securities, you should carefully consider the specific factors discussed under the heading "Risk Factors" in the applicable prospectus supplement, together with all of the other information contained or incorporated by reference in the prospectus supplement or appearing or incorporated by reference in this prospectus. You should also consider the risks, uncertainties and assumptions discussed under Item 1A, "Risk Factors," in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025, which is incorporated herein by reference, and may be amended, supplemented or superseded from time to time by other reports we file with the SEC in the future. The risks and uncertainties we have described are not the only ones we face. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also affect our operations.

USE OF PROCEEDS

Except as described in any applicable prospectus, prospectus supplement and in any free writing prospectuses in connection with a specific offering, we currently intend to use the net proceeds from the sale of securities offered by this prospectus for working capital and other general corporate purposes, including expanding our sales and marketing, capital expenditures, facilities expansion, and development of existing and new products. We may use a portion of the net proceeds to acquire complementary business or products, technologies or businesses or to repay indebtedness we may incur from time to time; however, we currently have no binding agreements or commitments to complete any such transactions or to make any such indebtedness repayments from the proceeds of this offering, although we do look for such acquisition opportunities.

DESCRIPTION OF CAPITAL STOCK

As of the date of this prospectus, our Articles of Incorporation, as amended, authorize us to issue 100,000,000 shares of common stock, par value $0.001 per share and 5,000,000 shares of preferred stock, par value $0.001 per share. The following is a summary of the rights of our common and preferred stock and some of the provisions of our Articles of Incorporation, as amended, our Amended and Restated Bylaws, and the Utah Revised Business Corporation Act (the "URBCA"). Because it is only a summary, it does not contain all the information that may be important to you and is subject to and qualified in its entirety by our Articles of Incorporation, as amended, and our Amended and Restated Bylaws, a copy of each of which has been incorporated as an exhibit to the registration statement of which this prospectus forms a part. We urge you to read each of the Articles of Incorporation, as amended, and the Amended and Restated Bylaws described herein in their entirety for a complete description of the rights and preferences of our securities.

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Common Stock

As of December 31, 2025 there were 2,095,031 shares of common stock outstanding. In addition, as of December 31, 2025 there were: (i) 31,595 shares of common stock subject to outstanding options; (ii) 114,024 shares of common stock subject to unvested outstanding restricted stock units; (iii) 247,024 shares of common stock available for future issuance under 2025 Equity Incentive Plan; and 15,500 shares of common stock reserved for future issuance under outstanding common stock purchase warrants.

Holders of our common stock are entitled to one vote for each share held of record on all matters submitted to a vote of the shareholders, and do not have cumulative voting rights. Accordingly, the holders of a majority of the shares of our common stock entitled to vote can elect all of the directors standing for election. Subject to preferences that may be applicable to any outstanding shares of preferred stock, holders of our common stock are entitled to receive ratably such dividends, if any, as may be declared from time to time by our Board of Directors out of funds legally available for dividend payments. All outstanding shares of our common stock are fully paid and nonassessable, and any shares of our common stock to be sold pursuant to this prospectus will be fully paid and nonassessable. The holders of common stock have no preferences or rights of conversion, exchange, pre-emption or other subscription rights. There are no redemption or sinking fund provisions applicable to our common stock. In the event of any liquidation, dissolution or winding-up of our affairs, holders of our common stock will be entitled to share ratably in our assets that are remaining after payment or provision for payment of all of our debts and obligations and after liquidation payments to holders of outstanding shares of preferred stock, if any.

The transfer agent and registrar for our common stock is VStock Transfer LLC located at 18 Lafayette Pl, Woodmere, New York 11598. Our common stock is listed on the Nasdaq Capital Market under the symbol "CODX."

Articles of Incorporation and Amended and Restated Bylaws

Shareholders' rights and related matters are governed by our Articles of Incorporation, as amended, Amended and Restated Bylaws and Utah law, including the URBCA. An amendment to our Articles of Incorporation, as amended, must be approved by holders of a majority of our outstanding common and our preferred stock, if any, except for certain limited amendments that can be effected by the Board of Directors without shareholder approval. Our Amended and Restated Bylaws may be amended or repealed by the Board of Directors by the affirmative vote of a majority of the directors then in office or by our shareholders at any annual meeting of shareholders, or special meeting of shareholders called for such purpose, by the affirmative vote of at least seventy-five percent (75%) of the shares present in person or represented by proxy at such meeting and entitled to vote on such amendment or repeal, voting together as a single class; provided, however, that if the Board of Directors recommends that stockholders approve such amendment or repeal at such meeting of stockholders, such amendment or repeal shall only require the affirmative vote of a majority of the shares present in person or represented by proxy at such meeting and entitled to vote on such amendment or repeal, voting together as a single class.

Board of Directors

Our Amended and Restated Bylaws provide that the number of directors must fall within a range between three (3) and ten (10), the exact number to be fixed by resolution of our Board of Directors. Our Board of Directors has adopted a resolution limiting the current size of the board to five (5) persons.

Preferred Stock

Our Board of Directors has the authority under our Articles of Incorporation, as amended, without further action by our shareholders, to issue up to 5,000,000 shares of preferred stock in one or more series, to establish from time to time the number of shares to be included in each such series, to fix the rights, preferences, privileges and restrictions of the shares of each wholly unissued series, including dividend rights, conversion rights, voting rights, terms of redemption, liquidation preference and sinking fund terms, and to increase or decrease the number of shares of any such series (but not below the number of shares of such series then outstanding).

Our Board of Directors may authorize the issuance of preferred stock with voting or conversion rights that could have the effect of restricting dividends on our common stock, diluting the voting power of our common stock, impairing the liquidation rights of our common stock or otherwise adversely affecting the rights of holders of our common stock. The issuance of preferred stock, while providing flexibility in connection with possible acquisitions and other corporate purposes, could, among other things, have the effect of delaying, deferring or preventing a change of control and may adversely affect the market price of our common stock. As of December 31, 2025, no shares of preferred stock were outstanding, and we have no current plans to issue any preferred stock.

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Future Preferred Stock

Our Board of Directors will fix the rights, preferences, privileges, qualifications and restrictions of the preferred stock of each series that we sell under this prospectus and applicable prospectus supplements in the certificate of designation relating to that series. We will file as an exhibit to the registration statement of which this prospectus is a part or incorporate by reference into the registration statement of which this prospectus is a part the form of any certificate of designation that describes the terms of the series of preferred stock we are offering before the issuance of the related series of preferred stock. This description will include:

the title and stated value;
the number of shares we are offering;
the liquidation preference per share;
the purchase price per share;
the dividend rate per share, dividend period and payment dates and method of calculation for dividends;
whether dividends will be cumulative or non-cumulative and, if cumulative, the date from which dividends will accumulate;
our right, if any, to defer payment of dividends and the maximum length of any such deferral period;
the procedures for any auction and remarketing, if any;
the provisions for a sinking fund, if any;
the provisions for redemption or repurchase, if applicable, and any restrictions on our ability to exercise those redemption and repurchase rights;
any listing of the preferred stock on any securities exchange or market;
whether the preferred stock will be convertible into our shares of common stock or other securities of ours, including warrants, and, if applicable, the conversion period, the conversion price, or how it will be calculated, and under what circumstances it may be adjusted;
whether the preferred stock will be exchangeable into debt securities, and, if applicable, the exchange period, the exchange price, or how it will be calculated, and under what circumstances it may be adjusted;
voting rights, if any, of the preferred stock;
preemptive rights, if any;
restrictions on transfer, sale or other assignment, if any;
a discussion of any material or special United States federal income tax considerations applicable to the preferred stock;
the relative ranking and preferences of the preferred stock as to dividend rights and rights if we liquidate, dissolve or wind up our affairs;
any limitations on issuances of any class or series of preferred stock ranking senior to or on a parity with the series of preferred stock being issued as to dividend rights and rights if we liquidate, dissolve or wind up our affairs; and
any other specific terms, rights, preferences, privileges, qualifications or restrictions of the preferred stock.

When we issue shares of preferred stock under this prospectus, the shares will be fully paid and nonassessable and will not have, or be subject to, any preemptive or similar rights.

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Warrants

The following summary of the material terms of our existing warrants is not intended to be complete and is qualified by reference to our Articles of Incorporation, as amended, and Amended and Restated Bylaws and the warrant-related documents described herein which are exhibits to the registration statement of which this prospectus is a part. We urge you to read each of the Articles of Incorporation, as amended, and Amended and Restated Bylaws and the warrant-related documents described herein in their entirety for a complete description of the rights and preferences of the warrants.

Contingent Consideration Warrants

On December 31, 2021, we completed our acquisitions (the "Acquisitions") of Advanced Conceptions, Inc. ("ACI") and Idaho Molecular Inc. ("IdMo"), pursuant to (i) an Agreement and Plan of Merger (as amended, the "ACI Merger Agreement") with ACI Acquisition Corp., an Idaho corporation and our wholly-owned subsidiary, ACI, and the Company Representative named therein and (ii) an Agreement and Plan of Merger (as amended, the "IM Merger Agreement" and together with the ACI Merger Agreement, the "Merger Agreements") with IDMO Acquisition Corp., an Idaho corporation and our wholly-owned subsidiary ("IM Merger Sub"), IdMo, and the Company Representative named therein.

Upon the completion of the Acquisitions, all outstanding shares of ACI and Idaho Molecular common stock were initially exchanged for approximately 3.2 million shares of common stock and contingent consideration that includes up to approximately 1.4 million shares of common stock and approximately 456,000 warrants to purchase shares of common stock. During 2022, we finalized negotiations with one remaining shareholder of ACI. Following the resolution with the remaining shareholder, the total number of shares issued as purchase consideration in the Acquisitions was approximately 3.3 million shares. Additionally, the aggregate purchase consideration for the Acquisitions included contingent consideration of up to approximately 1.4 million shares and 465,000 warrants (the "Contingent Consideration Warrants") to purchase shares of common stock. The contingent consideration is based on the achievement of certain milestones, which include regulatory approval for identified products, as well as production and net revenue targets.

The material terms and provisions of the Contingent Consideration Warrants are summarized below. This summary of some provisions of the Contingent Consideration Warrants is not complete. For the complete terms of the Contingent Consideration Warrants, you should refer to the warrant agreement filed as Exhibit 4.7 to the registration statement of which this prospectus forms a part. Pursuant to the warrant agreement between us and VStock Transfer, LLC, as warrant agent, the Contingent Consideration Warrants were issued in book-entry form.

Exercise. The Contingent Consideration Warrants have an initial exercise price equal to $9.125 per share. The Contingent Consideration Warrants become exercisable, subject to certain conditions, upon the achievement of certain milestones described in the Merger Agreements, or the earlier of (in each case provided that such event occurs prior to January 1, 2027) (i) a change of control, as defined in the Merger Agreements, (ii) the consummation of a transaction or series of transactions in which we or any of our affiliates sell all or substantially all of the assets relating to the design, engineering and development of a prototype highly sensitive and rapid response home saliva and/or nasal swab diagnostic platform and receptacle kits for, among other things, PCR testing and pathogen detection ("Working Prototype") for the ultimate manufacturing, commercialization and marketing of home use, consumer diagnostic kits based off the Working Prototype and the related saliva receptacle cups containing our pathogen detection technology (the "Project"), and (iii) our failure to satisfy certain funding commitments relating to the Project. Notwithstanding the foregoing, the Contingent Consideration Warrants will expire at 5:0 pm Eastern Time on January 1, 2027.

The holder of a Contingent Consideration Warrant is not deemed a holder of our underlying common stock until such warrant is exercised. The holders must pay the exercise price in cash upon exercise of the Contingent Consideration Warrants, unless such holders are utilizing the cashless exercise provision of the Contingent Consideration Warrants. Prior to the exercise of any Contingent Consideration Warrants to purchase common stock, holders of the Contingent Consideration Warrants do not have any of the rights of holders of the common stock purchasable upon exercise, including the right to vote, except as set forth therein.

Stock Dividends and Stock Splits. The exercise price and the number of shares issuable upon exercise of the Contingent Consideration Warrants is subject to appropriate adjustment in the event of recapitalization events, stock dividends, stock splits, stock combinations, reclassifications, reorganizations or similar events affecting our common stock.

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Merger or Consolidation. In the event we consummate a merger or consolidation with or into another person or other reorganization event in which we are not the surviving entity, the holders of the Contingent Consideration Warrants will be entitled to receive upon exercise of such Contingent Consideration Warrants the same kind and amount of securities, cash or property which the holders would have received had they exercised their Contingent Consideration Warrants immediately prior to such fundamental transaction.

Registration Rights. The Contingent Consideration Warrants include registration rights requiring the company to maintain a registration statement registering the resale of the shares of common stock underlying the Contingent Consideration Warrants, until such time as such shares of common stock can be freely sold under Rule 144 of the Securities Act. If we fail to satisfy such registration rights, we may be required to pay partial liquidated damages equal to the product of 2.0% multiplied by the aggregate consideration paid to the holder in the Acquisitions.

The Contingent Consideration Warrants are not listed on any securities exchange, and we do not intend to apply for listing of the Contingent Consideration Warrants on any securities exchange or other trading system.

Effects of Anti-Takeover Provisions of our Articles of Incorporation, as amended, and Amended and Restated Bylaws

Some provisions of our Articles of Incorporation, as amended, and Amended and Restated Bylaws could make the acquisition of control of us and/or the removal of our existing management more difficult, including those that provide as follows:

our directors may only be removed for cause, and only with a vote of the holders of at least 75 percent of the voting power of the then outstanding shares entitled to vote as a single class;
our Amended and Restated Bylaws may be amended or repealed by the Board of Directors by the affirmative vote of a majority of the directors then in office or by our shareholders at any annual meeting of shareholders, or special meeting of shareholders called for such purpose, by the affirmative vote of at least seventy-five percent (75%) of the shares present in person or represented by proxy at such meeting and entitled to vote on such amendment or repeal, voting together as a single class; provided, however, that if the Board of Directors recommends that stockholders approve such amendment or repeal at such meeting of stockholders, such amendment or repeal shall only require the affirmative vote of a majority of the shares present in person or represented by proxy at such meeting and entitled to vote on such amendment or repeal, voting together as a single class;
any action required or permitted to be taken by the shareholders of the Company may be effected only at a duly called annual or special meeting of the shareholders of the Company and may not be effected by written consent;
special meetings of the stockholders may be called only by the Board of Directors pursuant to a resolution approved by the affirmative vote of a majority of the directors then in office;
our Board of Directors may create new directorships and may appoint new directors to serve for the full term of the class of directors in which the new directorship was created and may fill vacancies on our Board of Directors occurring for any reason for the remainder of the term of the class of director in which the vacancy occurred;
our Board of Directors may issue shares of preferred stock without any vote or further action by the shareholders; and
our Board of Directors retains the power to designate series of preferred stock and to determine the powers, rights, preferences, qualifications and limitations of each class.
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Indemnification

Additionally, we will indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the corporation to procure a judgment in its favor by reason of the fact that he is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee, or agent of another corporation, partnership, joint venture, trust, or other enterprise against expenses (including attorneys' fees) actually and reasonably incurred by him in connection with the defense or settlement of such action or suit, if he acted in good faith and in a manner he reasonably believed to be in or not opposed to the best interests of the corporation, except that no indemnification shall be made in respect of any claim, issue or matter as to which such person shall have been adjudged to be liable to the corporation unless and only to the extent that the judicial court in which such action or suit was brought shall determine upon application that, despite the adjudication of liability but in view of all the circumstances of the case, such person is fairly and reasonably entitled to indemnity for such expenses which the court shall deem proper.

We have entered into separate indemnification agreements with our executive officers and directors, in addition to the indemnification provided for in our Amended and Restated Bylaws. These agreements, among other things, require us to indemnify our executive officers and directors for certain expenses, including attorneys' fees incurred by an executive officer or director in any action or proceeding arising out of their services as one of our executive officers or directors, or as an executive officer or director of any of our subsidiaries or any other company or enterprise to which the person provides services at our request.

Insofar as indemnification for liabilities arising under the Securities Act may be permitted to our officers, directors and controlling persons pursuant to the foregoing provisions, we have been advised that in the opinion of the SEC, such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable.

Defensive Provisions of Utah Law

Certain provisions of Utah law summarized below may be considered to have an anti-takeover effect and may delay, deter, or prevent a tender offer, proxy contest or other takeover attempt that shareholders might consider to be in their best interest, including a takeover attempt that might result in the payment of a premium over the market price of our common stock.

The Utah Control Shares Acquisition Act, or the Control Shares Act, provides that, when a person or group acquires control of shares of a corporation that is subject to the Control Shares Act equal to or in excess of 20%, 33 1/3% or a majority of the voting power of the corporation, the acquiring person is not permitted to vote the shares unless a majority of the corporation's shares, excluding shares held by the acquiring person or by the officers and employee-directors of the corporation, approve a resolution granting the acquiring person the right to vote the shares. As a public company headquartered in Utah, the Control Shares Act will apply to acquisitions of our common stock that cause an acquiring person to exceed the specified thresholds. Although a corporation may opt out of the Control Shares Act, we have not elected to opt out of the Control Shares Act.

Section 728 of the URBCA prohibits cumulative voting in the election of directors. Cumulative voting could facilitate a shareholder or group of shareholders in electing one or more candidates to our Board of Directors in opposition to our slate of proposed directors.

Part 18 of the URBCA is an anti-takeover provision that makes it difficult to effect a hostile takeover of an SEC-registered Utah corporation. It does so by generally prohibiting business combinations between a Utah corporation and a shareholder holding 20% or more of the corporation's shares until the interested shareholder has been an interested shareholder for at least five years. The following exceptions apply: (1) the business combination or acquisition of shares by the interested shareholder was approved by the board of the corporation before the date the interested shareholder crossed the 20% ownership threshold; (2) the business combination is approved by a majority of the disinterested shareholders, provided that the business combination still may not occur earlier than five years after the interested shareholder's share acquisition date; or (3) the purchase price of the business combination meets certain "fair price" thresholds.

Defensive Provisions in Articles or Bylaws

Our Amended and Restated Bylaws set forth procedures for shareholders to recommend nominees to the Company's Board of Directors. Nominations of persons for election to our Board of Directors to be considered by the stockholders may be made at an annual meeting of stockholders (i) pursuant to the Company's notice of meeting, (ii) by or at the direction of the Board of Directors, or (iii) by any stockholder of the Company who (A) was a stockholder of record at the time of giving of the notice, (B) is entitled to vote with respect to such matter at the meeting, and (C) complies with the notice procedures set forth in the Amended and Restated Bylaws.

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The following is a summary of key provisions from our Amended and Restated Bylaws. For nominations to be properly brought before an annual meeting by a stockholder, the stockholder making such nominations must have given timely notice in writing to the secretary of the Company. To be timely, a stockholder's notice shall be delivered to the secretary at the principal executive offices of the Company not later than the close of business on the 75th day nor earlier than the close of business on the 125th day prior to the first anniversary of the preceding year's annual meeting; provided, however, that in the event that the date of the annual meeting is more than 30 days before or more than 60 days after such anniversary date, notice by the stockholder to be timely must be so delivered not later than the close of business on the later of (x) the 75th day prior to the scheduled date of such annual meeting or (y) the 15th day following the day on which public announcement of the date of such meeting is first made by the Company. To be in proper form, a stockholder's notice to the secretary must: set forth, as to the stockholder giving the notice and the beneficial owner, if any, on whose behalf the nomination or proposal is made (A) the name and address of such stockholder, as they appear on the Company's books, and of such beneficial owner, if any, (B) the class or series and number of shares of the Company that are, directly or indirectly, owned beneficially and of record by such stockholder and such beneficial owner, if any, as of the date of such notice, and (C) any other information relating to such stockholder and beneficial owner, if any, that would be required to be disclosed in a proxy statement or other filings required to be made in connection with solicitations of proxies for, as applicable, the proposal and/or for the election of directors in a contested election pursuant to Section 14 of the Exchange Act, and the rules and regulations promulgated thereunder.

Our Amended and Restated Bylaws provide that special meetings of the stockholders may be called only by the Board of Directors pursuant to a resolution approved by the affirmative vote of a majority of the directors then in office. Only those matters set forth in the notice of the special meeting may be considered or acted upon at a special meeting of stockholders of the corporation, unless otherwise required by law. This restriction on the calling of special shareholders' meetings may deter hostile takeovers by making it more difficult for a person or entity to obtain immediate control of the corporation between annual meetings.

Our Articles of Incorporation, as amended, authorize the issuance of 100,000,000 shares of common stock and 5,000,000 shares of preferred stock. Shares were authorized to provide our Board of Directors with as much flexibility as possible to effect, among other transactions, financings, acquisitions, share dividends, and the exercise of employee stock options. However, these additional authorized shares may also be used by the Board of Directors, to the extent consistent with its fiduciary duty, to deter future attempts to gain control of the Company. As a result of the ability to issue additional shares, our Board of Directors has the power to issue shares to persons friendly to management in order to attempt to block a tender offer, merger or other transaction by which a third party seeks control of the Company, and thereby allow members of management to retain their positions.

The matters described above may be considered to have an anti-takeover effect and may delay, defer or prevent a tender offer or other takeover attempt that a shareholder might consider to be in such shareholder's best interest, including such an attempt as might result in the receipt of a premium over the market price for the common stock held by such shareholder.

Transfer Agent and Registrar

The transfer agent and registrar for our common stock is VStock Transfer LLC located at 18 Lafayette Pl, Woodmere, New York 11598.

Stock Market Listing

Our common stock is listed on the Nasdaq Capital Market under the symbol "CODX."

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DESCRIPTION OF DEBT SECURITIES

We may offer debt securities in one or more series, which may be senior debt securities or subordinated debt securities and which may be convertible into another security.

The following description briefly sets forth certain general terms and provisions of the debt securities. The particular terms of the debt securities offered by any prospectus supplement and the extent, if any, to which the following general terms and provisions may apply to the debt securities, will be described in an accompanying prospectus supplement. Our debt securities will be issued in one or more series under an indenture to be entered into between us and a trustee to be named in a prospectus supplement, as amended or supplemented from time to time. A form of the indenture is attached as an exhibit to the registration statement of which this prospectus forms a part. The terms of the debt securities will include those set forth in the indenture and those made a part of the indenture by the Trust Indenture Act of 1939 ("Trust Indenture Act"). You should read the summary below, any accompanying prospectus supplement and the provisions of the indenture in their entirety before investing in our debt securities.

The aggregate principal amount of debt securities that may be issued under the indenture is unlimited. The prospectus supplement relating to any series of debt securities that we may offer will contain the specific terms of the debt securities. These terms may include, among others, the following:

the title of the series of debt securities;
any limit upon the aggregate principal amount that may be issued;
the maturity date or dates;
the form of the debt securities of the series;
the applicability of any guarantees;
whether or not the debt securities will be secured or unsecured, and the terms of any secured debt;

whether the debt securities rank as senior debt, senior subordinated debt, subordinated debt or any combination thereof, and the terms of any subordination;

if the price (expressed as a percentage of the aggregate principal amount thereof) at which such debt securities will be issued is a price other than the principal amount thereof, the portion of the principal amount thereof payable upon declaration of acceleration of the maturity thereof, or if applicable, the portion of the principal amount of such debt securities that is convertible into another security or the method by which any such portion shall be determined;

the interest rate or rates, which may be fixed or variable, or the method for determining the rate and the date interest will begin to accrue, the dates interest will be payable and the regular record dates for interest payment dates or the method for determining such dates;

our right, if any, to defer payment of interest and the maximum length of any such deferral period;

if applicable, the date or dates after which, or the period or periods during which, and the price or prices at which, we may, at our option, redeem the series of debt securities pursuant to any optional or provisional redemption provisions and the terms of those redemption provisions;

the date or dates, if any, on which, and the price or prices at which we are obligated, pursuant to any mandatory sinking fund, mandatory redemption or analogous provisions or otherwise, to redeem, or at the holder's option repurchase, the series of debt securities and the currency or currency unit in which the debt securities are payable;

the denominations in which we will issue the series of debt securities, if other than denominations of $1,000 and any integral multiple thereof;

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any and all terms, if applicable, relating to any auction or remarketing of the debt securities of that series and any security for our obligations with respect to such debt securities and any other terms which may be advisable in connection with the marketing of debt securities of that series;

whether the debt securities of the series shall be issued in whole or in part in the form of a global security or securities; the terms and conditions, if any, upon which such global security or securities may be exchanged in whole or in part for other individual securities; and the depositary for such global security or securities;

if applicable, the provisions relating to conversion or exchange of any debt securities of the series and the terms and conditions upon which such debt securities will be so convertible or exchangeable, including the conversion or exchange price, as applicable, or how it will be calculated and may be adjusted, any mandatory or optional (at our option or the holders' option) conversion or exchange features, the applicable conversion or exchange period and the manner of settlement for any conversion or exchange, which may, without limitation, include the payment of cash as well as the delivery of securities;

if other than the full principal amount thereof, the portion of the principal amount of debt securities of the series which shall be payable upon declaration of acceleration of the maturity thereof;

additions to or changes in the covenants applicable to the particular debt securities being issued, including, among others, the consolidation, merger or sale covenant;

additions to or changes in the events of default with respect to the securities and any change in the right of the trustee or the holders to declare the principal, premium, if any, and interest, if any, with respect to such securities to be due and payable;

additions to or changes in or deletions of the provisions relating to covenant defeasance and legal defeasance;

additions to or changes in the provisions relating to satisfaction and discharge of the indenture;

additions to or changes in the provisions relating to the modification of the indenture both with and without the consent of holders of debt securities issued under the indenture;

the currency or currencies, including composite currencies, in which payment of debt securities if other than U.S. dollars and the manner of determining the equivalent amount in U.S. dollars;

whether interest will be payable in cash or additional debt securities at our or the holders' option and the terms and conditions upon which the election may be made;

the terms and conditions, if any, upon which we will pay amounts in addition to the stated interest, premium, if any, and principal amounts of the debt securities of the series to any holder that is not a "United States person" for federal tax purposes;

any restrictions on transfer, sale or assignment of the debt securities of the series; and
any other specific terms, preferences, rights or limitations of, or restrictions on, the debt securities, any other additions or changes in the provisions of the indenture, and any terms that may be required by us or advisable under applicable laws or regulations.

General

We may sell the debt securities, including original issue discount securities, at par or at a substantial discount below their stated principal amount. Unless we inform you otherwise in a prospectus supplement, we may issue additional debt securities of a particular series without the consent of the holders of the debt securities of such series or any other series outstanding at the time of issuance. Any such additional debt securities, together with all other outstanding debt securities of that series, will constitute a single series of securities under the indenture.

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We will describe in an accompanying prospectus supplement any other special considerations for any debt securities we sell that are denominated in a currency or currency unit other than U.S. dollars. In addition, debt securities may be issued where the amount of principal and/or interest payable is determined by reference to one or more currency exchange rates, commodity prices, equity indices or other factors. Holders of such securities may receive a principal amount or a payment of interest that is greater than or less than the amount of principal or interest otherwise payable on such dates, depending upon the value of the applicable currencies, commodities, equity indices or other factors. Information as to the methods for determining the amount of principal or interest, if any, payable on any date, and the currencies, commodities, equity indices or other factors to which the amount payable on such date is linked will be described in an accompanying prospectus supplement.

United States federal income tax consequences and special considerations, if any, applicable to any such series will be described in an accompanying prospectus supplement.

We expect most debt securities to be issued in fully registered form without coupons and in denominations of $2,000 and any integral multiple of $1,000 in excess thereof. Subject to the limitations provided in the indenture and in an accompanying prospectus supplement, debt securities that are issued in registered form may be transferred or exchanged at the designated corporate trust office of the trustee, without the payment of any service charge, other than any tax or other governmental charge payable in connection therewith.

Global Securities

Unless we inform you otherwise in an accompanying prospectus supplement, the debt securities of a series may be issued in whole or in part in the form of one or more global securities that will be deposited with, or on behalf of, a depositary identified in an accompanying prospectus supplement. Unless and until a global security is exchanged in whole or in part for the individual debt securities, a global security may not be transferred except as a whole by the depositary for such global security to a nominee of such depositary or by a nominee of such depositary to such depositary or another nominee of such depositary or by such depositary or any such nominee to a successor of such depositary or a nominee of such successor.

Governing Law

The indenture and the debt securities shall be construed in accordance with and governed by the laws of the State of New York.

DESCRIPTION OF WARRANTS

The following description, together with the additional information we may include in any applicable prospectus supplements and free writing prospectuses, summarizes the material terms and provisions of the warrants that we may offer under this prospectus, which may consist of warrants to purchase common stock, preferred stock or debt securities and may be issued in one or more series. Warrants may be offered independently or together with shares of common stock, shares of preferred stock or debt securities offered by any prospectus supplement, and may be attached to or separate from those securities. While the terms we have summarized below will apply generally to any warrants that we may offer under this prospectus, we will describe the particular terms of any warrants that we may offer in more detail in the applicable prospectus supplement and any applicable free writing prospectus. The terms of any warrants offered under a prospectus supplement may differ from the terms described below. However, no prospectus supplement will fundamentally change the terms that are set forth in this prospectus or offer a security that is not registered and described in this prospectus at the time of its effectiveness.

We will file as exhibits to the registration statement of which this prospectus is a part, or will incorporate by reference from a current report on Form 8-K that we file with the SEC, the form of warrant document or agreement that describes the terms of the particular warrants we are offering before the issuance of the related warrants. The following summaries of material provisions of the warrants are subject to, and qualified in their entirety by reference to, all the provisions of the warrant document or agreement applicable to particular warrants. We urge you to read the applicable prospectus supplement and any applicable free writing prospectus related to the particular warrants that we sell under this prospectus, as well as the complete warrant document or agreement that contain the terms of the warrants.

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General

We will describe in the applicable prospectus supplement the terms relating to the warrants, including, if applicable:

the offering price and aggregate number of warrants offered;
the currency for which the warrants may be purchased;
if applicable, the designation and terms of the securities with which the warrants are issued and the number of warrants issued with each such security or each principal amount of such security;
if applicable, the date on and after which the warrants and the related securities will be separately transferable;
in the case of warrants to purchase debt securities, the principal amount of debt securities purchasable upon exercise of one warrant and the price at, and currency in which, this principal amount of debt securities may be purchased upon such exercise;
in the case of warrants to purchase common stock or preferred stock, the number of shares of common stock or preferred stock, as the case may be, purchasable upon the exercise of one warrant and the price at which these shares may be purchased upon such exercise;
the effect of any merger, consolidation, sale or other disposition of our business on the warrant agreements and the warrants;
the terms of any rights to redeem or call the warrants;
any provisions for changes to or adjustments in the exercise price or number of securities issuable upon exercise of the warrants;
the dates on which the right to exercise the warrants will commence and expire;
the manner in which the warrant agreements and warrants may be modified;
material United States federal income tax consequences of holding or exercising the warrants;
the terms of the securities issuable upon exercise of the warrants; and
any other specific terms, preferences, rights or limitations of or restrictions on the warrants.

Before exercising their warrants, holders of warrants will not have any of the rights of holders of the securities purchasable upon such exercise, including:

in the case of warrants to purchase debt securities, the right to receive payments of principal of, or premium, if any, or interest on, the debt securities purchasable upon exercise or to enforce covenants in the applicable indenture; or
in the case of warrants to purchase common stock or preferred stock, the right to receive dividends, if any, or, payments upon our liquidation, dissolution or winding up or to exercise voting rights, if any.

Exercise of Warrants

Each warrant will entitle the holder to purchase the securities that we specify in the applicable prospectus supplement at the exercise price that we describe in the applicable prospectus supplement. Unless we otherwise specify in the applicable prospectus supplement, holders of the warrants may exercise the warrants at any time up to the specified time on the expiration date that we set forth in the applicable prospectus supplement. After the close of business on the expiration date, unexercised warrants will become void.

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Holders of the warrants may exercise the warrants by delivering the warrant certificate representing the warrants to be exercised together with specified information, and paying the required amount to the warrant agent, if any, in immediately available funds, as provided in the applicable prospectus supplement. To the extent applicable, we will set forth in the warrant agreement or documents and in the applicable prospectus supplement the information that the holder of the warrant will be required to deliver to the warrant agent.

To the extent applicable, upon receipt of the required payment and the warrant documents properly completed and duly executed , we will issue and deliver the securities purchasable upon such exercise. If fewer than all of the warrants represented by the warrant certificate are exercised, then we will issue a new warrant certificate for the remaining amount of warrants. If we so indicate in the applicable prospectus supplement, holders of the warrants may surrender securities as all or part of the exercise price for warrants.

DESCRIPTION OF RIGHTS

We may issue rights to purchase shares of our common stock, shares of our preferred stock, or warrants in one or more series. Rights may be issued independently or together with any other offered security and may or may not be transferable by the person purchasing or receiving the subscription rights. In connection with any rights offering to our shareholders, we may enter into a standby underwriting arrangement with one or more underwriters pursuant to which the underwriters will purchase any of the offered securities remaining unsubscribed after the expiration of the rights offering. In connection with a rights offering to our shareholders, we will distribute certificates evidencing the rights and an applicable prospectus supplement to our shareholders on the record date that we set for receiving rights in the rights offering. An applicable prospectus supplement will describe the following terms of rights in respect of which this prospectus is being delivered:

the title of the rights;
the securities for which the rights are exercisable;
the exercise price for the rights;
the date of determining the security holders entitled to the rights distribution;
the number of the rights issued to each security holder;
the extent to which the rights are transferable;
if applicable, a discussion of the material United States federal income tax considerations applicable to the issuance or exercise of the rights;
the date on which the right to exercise the rights shall commence, and the date on which the rights shall expire (subject to any extension);
the conditions to completion of the rights offering;
any provisions for changes to or adjustments in the exercise price or number of securities issuable upon exercise of the rights;
the extent to which the rights include an over-subscription privilege with respect to unsubscribed securities;
if applicable, the material terms of any standby underwriting or other purchase arrangement that we may enter into in connection with the rights offering; and
any other terms of the rights, including terms, procedures and limitations relating to the exchange and exercise of the rights.
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Each right will entitle the holder to purchase for cash the amount of securities, at the exercise price. Rights may be exercised at any time up to the close of business on the expiration date of the rights. After the close of business on the expiration date, all unexercised rights will become void. The manner in which rights may be exercised will be described in an applicable prospectus supplement. We may, but we will not be required to, permit the exercise of rights through the delivery of a notice of guaranteed delivery from a bank, a trust company, or a New York Stock Exchange member guaranteeing delivery of (1) payment of the exercise price for the securities for which the rights are being exercised, and (2) a properly completed and executed rights certificate. The notice of guaranteed delivery must be received by the Company or the rights agent before the expiration of the rights, and the Company or the rights agent will not honor a notice of guaranteed delivery unless a properly completed and executed rights certificate and full payment for the securities being purchased are received by the Company or the rights agent by the close of business on the third business day after the expiration time of the rights. Upon receipt of payment and the proper completion and due execution of the rights certificate we or the transfer agent will forward, as soon as practicable, the securities purchased through the exercise of the rights. We may determine to offer any unsubscribed offered securities directly to persons other than shareholders, to or through agents, underwriters or dealers or through a combination of the methods, including pursuant to standby underwriting arrangements, as set forth in an applicable prospectus supplement.

DESCRIPTION OF UNITS

The following description, together with the additional information we may include in any applicable prospectus supplements, summarizes the material terms and provisions of the units that we may offer under this prospectus. While the terms we have summarized below will apply generally to any units that we may offer under this prospectus, we will describe the particular terms of any series of units in more detail in the applicable prospectus supplement. The terms of any units offered under a prospectus supplement may differ from the terms described below. However, no prospectus supplement will fundamentally change the terms that are set forth in this prospectus or offer a security that is not registered and described in this prospectus at the time of its effectiveness.

We may enter into unit agreements with unit holders. To the extent applicable, we will file as exhibits to the registration statement of which this prospectus is a part, or will incorporate by reference from a current report on Form 8-K that we file with the SEC, the form of unit agreement, if any, that describes the terms of the units we are offering, and any supplemental agreements, before the issuance of the related units. The following summaries of material terms and provisions of the units are subject to, and qualified in their entirety by reference to, all the provisions of the unit agreement, if any, and any supplemental agreements applicable to particular units and the applicable prospectus supplement. We urge you to read the applicable prospectus supplements related to the particular units that we sell under this prospectus, as well as the complete unit agreement, if any, and any supplemental agreements that contain the terms of the units.

General

We may issue units comprised of one or more debt securities, shares of common stock, shares of preferred stock and warrants in any combination. Each unit will be issued so that the holder of the unit is also the holder of each security included in the unit. Thus, the holder of a unit will have the rights and obligations of a holder of each included security. The unit agreement, if any, or the applicable prospectus supplement, under which a unit is issued may provide that the securities included in the unit may not be held or transferred separately, at any time or at any time before a specified date.

We will describe in the applicable prospectus supplement the terms of the units, including:

the designation and terms of the units and of the securities comprising the units, including whether and under what circumstances those securities may be held or transferred separately;
any provisions of the governing unit agreement that differ from those described below; and
any provisions for the issuance, payment, settlement, transfer or exchange of the units or of the securities comprising the units.
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The provisions described in this section, as well as those described under "Description of Capital Stock," "Description of Debt Securities" and "Description of Warrants" will apply to each unit and to any shares of common stock, shares of preferred stock, debt security or warrant included in each unit, respectively.

Issuance in Series

We may issue units in such amounts and in numerous distinct series as we determine.

Enforceability of Rights by Holders of Units

We may enter into a unit agreement, as needed, with a unit agent. The unit agent, if any, will act solely as our agent under the applicable unit agreement, and will not assume any obligation or relationship of agency or trust with any holder of any unit. A single bank or trust company may act as unit agent for more than one series of units. A unit agent will have no duty or responsibility in case of any default by us under the applicable unit agreement or unit, including any duty or responsibility to initiate any proceedings at law or otherwise, or to make any demand upon us. Any holder of a unit may, without the consent of the related unit agent or the holder of any other unit, enforce by appropriate legal action its rights as holder under any security included in the unit.

We, the unit agents, if any, and any of their agents may treat the registered holder of any unit certificate as an absolute owner of the units evidenced by that certificate for any purpose and as the person entitled to exercise the rights attaching to the units so requested, despite any notice to the contrary.

FORMS OF SECURITIES

General

Each debt security, warrant, and unit will be represented either by a certificate issued in definitive form to a particular purchaser or by one or more global securities representing the entire issuance of securities. Unless the applicable prospectus supplement, information incorporated by reference or free writing prospectus provides otherwise, certificated securities in definitive form and global securities will be issued in registered form. Definitive securities name you or your nominee as the owner of the security, and in order to transfer or exchange these securities or to receive payments other than interest or other interim payments, you or your nominee must physically deliver the securities to the trustee, registrar, paying agent or other agent, as applicable. Global securities name a depositary or its nominee as the owner of the debt securities, warrants or units represented by these global securities. The depositary maintains a computerized system that will reflect each purchaser's beneficial ownership of the securities through an account maintained by the purchaser with its broker/dealer, bank, trust company or other representative, as we explain more fully below.

Registered Global Securities

We may issue the registered debt securities, warrants or units in the form of one or more fully registered global securities, bearing all applicable legends, to be deposited with and registered in the name of a depositary or its nominee identified in the applicable prospectus supplement, information incorporated by reference or free writing prospectus. In those cases, one or more registered global securities will be issued in a denomination or aggregate denominations equal to the portion of the aggregate principal or face amount of the securities to be represented by registered global securities. Unless and until it is exchanged in whole for certificated securities in definitive registered form, a registered global security may not be transferred except as a whole by and among the depositary for the registered global security, the nominees of the depositary or any successors of the depositary or those nominees.

If not described below, any specific terms of the depositary arrangement with respect to any securities to be represented by a registered global security will be described in the prospectus supplement, information incorporated by reference or free writing prospectus relating to those securities. We anticipate that the following provisions will apply to all depositary arrangements.

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Ownership of beneficial interests in a registered global security will be limited to persons, called participants, that have accounts with the depositary or persons that may hold interests through participants. Upon the issuance of a registered global security, the depositary will credit, on its book-entry registration and transfer system, the participants' global accounts with the respective principal or face amounts of the securities beneficially owned by the participants. Any dealers, underwriters or agents participating in the distribution of the securities will designate the accounts to be credited. Ownership of beneficial interests in a registered global security will be shown on, and the transfer of ownership interests will be effected only through, records maintained by the depositary, with respect to interests of participants, and on the records of participants, with respect to interests of persons holding through participants. The laws of some jurisdictions may require that some purchasers of securities take physical delivery of these securities in definitive form. These laws may impair such purchasers' global abilities to own, transfer or pledge beneficial interests in registered global securities.

So long as the depositary, or its nominee, is the registered owner of a registered global security, that depositary or its nominee, as the case may be, will be considered the sole owner or holder of the securities represented by the registered global security for all purposes under the applicable indenture, warrant agreement or unit agreement. Except as described below, owners of beneficial interests in a registered global security will not be entitled to have the securities represented by the registered global security registered in their names, will not receive or be entitled to receive physical delivery of the securities in definitive form and will not be considered the owners or holders of the securities under the applicable indenture, warrant agreement or unit agreement. Accordingly, each person owning a beneficial interest in a registered global security must rely on the procedures of the depositary for that registered global security and, if that person is not a participant, on the procedures of the participant through which the person owns its interest, to exercise any rights of a holder under the applicable indenture, warrant agreement or unit agreement. These procedures may change from time to time. We understand that, under existing industry practices, if we request any action of holders or if an owner of a beneficial interest in a registered global security desires to give or take any action that a holder is entitled to give or take under the applicable indenture, warrant agreement or unit agreement, the depositary for the registered global security would authorize the participants holding the relevant beneficial interests to give or take that action, and the participants would authorize beneficial owners owning through them to give or take that action or would otherwise act upon the instructions of beneficial owners holding through them.

Principal, premium, if any, on and interest payments on debt securities, and any payments to holders with respect to warrants or units, represented by a registered global security registered in the name of a depositary or its nominee will be made to the depositary or its nominee, as the case may be, as the registered owner of the registered global security. None of us, the trustees, the warrant agents, the unit agents or any other agent of ours, agent of the trustees or agent of the warrant agents or the unit agents will have any responsibility or liability for any aspect of the records relating to payments made on account of beneficial ownership interests in the registered global security or for maintaining, supervising or reviewing any records relating to those beneficial ownership interests.

We expect that the depositary for any of the securities represented by a registered global security, upon receipt of any payment of principal, premium, interest or other distribution of underlying securities or other property to holders on that registered global security, will immediately credit participants' accounts in amounts proportionate to their respective beneficial interests in that registered global security as shown on the records of the depositary. We also expect that payments by participants to owners of beneficial interests in a registered global security held through participants will be governed by standing customer instructions and customary practices, as is now the case with the securities held for the accounts of customers or registered in "street name," and will be the responsibility of those participants.

If the depositary for any of the securities represented by a registered global security is at any time unwilling or unable to continue as depositary or ceases to be qualified to serve as a depositary, and a qualified successor depositary is not appointed by us within 90 days, we will issue certificated securities in definitive form in exchange for the registered global security that had been held by the depositary. Any securities issued in definitive form in exchange for a registered global security will be registered in the name or names that the depositary gives to the relevant trustee, warrant agent or unit agent or other relevant agent of ours or theirs. It is expected that the depositary's instructions will be based upon directions received by the depositary from participants with respect to ownership of beneficial interests in the registered global security that had been held by the depositary.

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PLAN OF DISTRIBUTION

We may sell the securities offered through this prospectus (1) to or through underwriters or dealers, (2) directly to purchasers, including our affiliates, (3) through agents, including ordinary brokerage transactions, block trades, placements, "at the market" transactions, put or call transactions or in any other way not involving market makers or established trading markets, (4) through a combination of any of these methods, or (5) through any other methods described in a prospectus supplement. The securities may be distributed at a fixed price or prices, which may be changed, at market prices prevailing at the time of sale, at prices related to the prevailing market prices, or at negotiated prices. Any prospectus supplement will include, to the extent applicable, the following information:

the terms of the offering;
the names of any underwriters or agents;
the name or names of any managing underwriter or underwriters;
the purchase price of the securities;
the net proceeds from the sale of the securities;
any delayed delivery arrangements;
any underwriting discounts, commissions and other items constituting underwriters' compensation;
any initial public offering price;
any discounts or concessions allowed or reallowed or paid to dealers; and
any commissions paid to agents.

We may engage in at the market offerings into an existing trading market in accordance with Rule 415(a)(4). Any at the market offering will be through an underwriter or underwriters acting as principal or agent for us.

Under Rule 15c6-1 of the Exchange Act, trades in the secondary market generally are currently required to settle in one business days, unless the parties to any such trade expressly agree otherwise. The applicable prospectus supplement may provide that the original issue date for your securities may be more than one scheduled business days after the trade date for your securities. Accordingly, in such a case, if you wish to trade securities on any date prior to the first business day before the original issue date for your securities, you will be required, by virtue of the fact that your securities initially are expected to settle in more than one scheduled business days after the trade date for your securities, to make alternative settlement arrangements to prevent a failed settlement.

We may issue to the holders of our common stock, on a pro rata basis for no consideration, subscription rights to purchase shares of common stock, shares of preferred stock, or debt securities. These subscription rights may or may not be transferable by stockholders. The applicable prospectus supplement will describe the specific terms of any offering of our common or preferred stock through the issuance of subscription rights, including the terms of the subscription rights offering, the terms, procedures and limitations relating to the exchange and exercise of the subscription rights and, if applicable, the material terms of any standby underwriting or purchase arrangement entered into by us in connection with the offering of common or preferred stock through the issuance of subscription rights.

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Sales through Underwriters or Dealers

If underwriters are used in the sale, the underwriters will acquire the securities for their own account, including through underwriting, purchase, security lending or repurchase agreements with us. The underwriters may resell the securities from time to time in one or more transactions, including negotiated transactions. Underwriters may sell the securities in order to facilitate transactions in any of our other securities (described in this prospectus or otherwise), including other public or private transactions and short sales. Underwriters may offer securities to the public either through underwriting syndicates represented by one or more managing underwriters or directly by one or more firms acting as underwriters. Unless otherwise indicated in the prospectus supplement, the obligations of the underwriters to purchase the securities will be subject to certain conditions, and the underwriters will be obligated to purchase all the offered securities if they purchase any of them. The underwriters may change from time to time any initial public offering price and any discounts or concessions allowed or reallowed or paid to dealers. The prospectus supplement will include the names of the principal underwriters, the respective amount of securities underwritten, the nature of the obligation of the underwriters to take the securities and the nature of any material relationship between an underwriter and us.

Some or all of the securities that we offer through this prospectus may be new issues of securities with no established trading market. Any underwriters to whom we sell securities for public offering and sale may make a market in those securities, but they will not be obligated to do so and they may discontinue any market making at any time without notice. Accordingly, we cannot assure you of the liquidity of, or continued trading markets for, any securities offered pursuant to this prospectus.

If dealers are used in the sale of securities offered through this prospectus, we will sell the securities to them as principals. They may then resell those securities to the public at varying prices determined by the dealers at the time of resale. The prospectus supplement will include the names of the dealers and the terms of the transaction.

Direct Sales and Sales through Agents

We may sell the securities offered through this prospectus directly. In this case, no underwriters or agents would be involved.

Securities may also be sold through agents designated from time to time. Any required prospectus supplement will name any agent involved in the offer or sale of the offered securities and will describe any commissions payable to the agent by us. Unless otherwise indicated in such prospectus supplement, any agent will agree to use its reasonable best efforts to solicit purchases for the period of its appointment.

We may sell the securities directly to institutional investors or others who may be deemed to be underwriters within the meaning of the Securities Act with respect to any sale of those securities. The terms of any such sales will be described in any required prospectus supplement.

Delayed Delivery Contracts

If the applicable prospectus supplement indicates, we may authorize agents, underwriters or dealers to solicit offers from certain types of institutions to purchase securities at the public offering price under delayed delivery contracts. These contracts would provide for payment and delivery on a specified date in the future. The contracts would be subject only to those conditions described in the prospectus supplement. The applicable prospectus supplement will describe the commission payable for solicitation of those contracts.

Market Making, Stabilization and Other Transactions

Unless the applicable prospectus supplement states otherwise, all securities we may offer, other than common stock, will be new issues of securities with no established trading market. We may elect to list any series of offered securities on an exchange. Any underwriters that we use in the sale of such offered securities may make a market in such securities, but may discontinue such market making at any time without notice. Accordingly, we cannot assure you that the securities will have a liquid trading market.

Any underwriter engaged by us may also engage in stabilizing transactions, syndicate covering transactions and penalty bids in accordance with Rule 104 under the Exchange Act. Stabilizing transactions involve bids to purchase the underlying security in the open market for the purpose of pegging, fixing or maintaining the price of the securities. Syndicate covering transactions involve purchases of the securities in the open market after the distribution has been completed in order to cover syndicate short positions.

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Penalty bids permit the underwriters to reclaim a selling concession from a syndicate member when the securities originally sold by the syndicate member are purchased in a syndicate covering transaction to cover syndicate short positions. Stabilizing transactions, syndicate covering transactions and penalty bids may cause the price of the securities to be higher than it would be in the absence of the transactions. The underwriters may, if they commence these transactions, discontinue them at any time.

Derivative Transactions and Hedging

We, the underwriters or other agents may engage in derivative transactions involving the securities. These derivatives may consist of short sale transactions and other hedging activities. The underwriters or agents may acquire a long or short position in the securities, hold or resell securities acquired and purchase options or futures on the securities and other derivative instruments with returns linked to or related to changes in the price of the securities. In order to facilitate these derivative transactions, we may enter into security lending or repurchase agreements with the underwriters or agents. The underwriters or agents may effect the derivative transactions through sales of the securities to the public, including short sales, or by lending the securities in order to facilitate short sale transactions by others. The underwriters or agents may also use the securities purchased or borrowed from us or others (or, in the case of derivatives, securities received from us in settlement of those derivatives) to directly or indirectly settle sales of the securities or close out any related open borrowings of the securities.

Electronic Auctions

We may also make sales through the Internet or through other electronic means. Since we may from time to time elect to offer securities directly to the public, with or without the involvement of agents, underwriters or dealers, utilizing the Internet or other forms of electronic bidding or ordering systems for the pricing and allocation of such securities, you should pay particular attention to the description of that system we may provide in any prospectus supplement.

Such electronic system may allow bidders to directly participate, through electronic access to an auction site, by submitting conditional offers to buy that are subject to acceptance by us, and which may directly affect the price or other terms and conditions at which such securities are sold. These bidding or ordering systems may present to each bidder, on a so-called "real-time" basis, relevant information to assist in making a bid, such as the clearing spread at which the offering would be sold, based on the bids submitted, and whether a bidder's individual bids would be accepted, prorated or rejected. For example, in the case of a debt security, the clearing spread could be indicated as a number of "basis points" above an index treasury note. Of course, many pricing methods can and may also be used.

Upon completion of such an electronic auction process, securities will be allocated based on prices bid, terms of bid or other factors. The final offering price at which securities would be sold and the allocation of securities among bidders would be based in whole or in part on the results of the Internet or other electronic bidding process or auction.

General Information

Agents, underwriters and dealers may be entitled, under agreements entered into with us, to indemnification by us against certain liabilities, including liabilities under the Securities Act. Agents, underwriters and dealers may engage in transactions with or perform services for us in the ordinary course of their businesses.

Our common stock is listed on the Nasdaq Capital Market under the symbol "CODX."

LEGAL MATTERS

Dorsey & Whitney LLP, Salt Lake City, Utah will pass for us upon the validity of the securities being offered by this prospectus and applicable prospectus supplement, and counsel named in the applicable prospectus supplement will pass upon legal matters for any underwriters, dealers or agents.

EXPERTS

The consolidated financial statements of Co-Diagnostics, Inc., incorporated by reference herein incorporated by reference in this prospectus, have been audited by Tanner LLP, an independent registered public accounting firm, as stated in their report. Such financial statements are incorporated by reference in reliance upon the report of such firm, given their authority as experts in accounting and auditing.

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WHERE YOU CAN FIND MORE INFORMATION

We are subject to the information requirements of the Exchange Act and, in accordance therewith, file annual, quarterly and current reports, proxy statements and other information with the SEC. These documents may be accessed through the SEC's electronic data gathering, analysis and retrieval system via electronic means, including the SEC's home page on the Internet (www.sec.gov). Copies of certain information filed by us with the SEC are also available on our website at https://www.co-dx.com. The information contained on our website is not incorporated by reference into this prospectus and, therefore, is not part of this prospectus or any accompanying prospectus supplement.

This prospectus is part of a registration statement on Form S-3 that we have filed with the SEC under the Securities Act. Certain information in the registration statement has been omitted from this prospectus in accordance with SEC rules and regulations. For more detail about us and any securities that may be offered by this prospectus, you may examine the registration statement on Form S-3 and the exhibits filed with it at the locations listed in the previous paragraph. Please be aware that statements in this prospectus referring to a contract or other document are summaries and you should refer to the exhibits that are part of the registration statement for a copy of the contract or document.

INCORPORATION BY REFERENCE

The SEC allows us to "incorporate by reference" information that we file with it into this prospectus, which means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is an important part of this prospectus. The information incorporated by reference is considered to be a part of this prospectus, and information that we file later with the SEC will automatically update and supersede information contained in this prospectus and any accompanying prospectus supplement. We incorporate by reference the documents listed below that we have previously filed with the SEC:

our Annual Report on Form 10-K for the fiscal year ended December 31, 2025; and

our Current Reports on Form 8-K filed with the SEC on January 13, 2026 and March 10, 2026 (other than information furnished under Item 2.02);

the description of our common stock, which is contained in the Registration Statement on Form 8-A, as filed with the SEC on July 11, 2017, as updated by the description of our common stock contained in Exhibit 4.1 to our Annual Report on Form 10-K for the fiscal year ended December 31, 2024, including any amendment or report filed for the purpose of updating such description.

We also incorporate by reference into this prospectus additional documents that we may file with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act, excluding, in each case, information deemed furnished and not filed, until we sell all of the securities we are offering or the termination of the offering. All reports and other documents filed by us pursuant to the Exchange Act after the date of the initial registration statement and prior to effectiveness of the registration statement shall be deemed to be incorporated by reference into this prospectus. Any statements contained in a previously filed document incorporated by reference into this prospectus is deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained in this prospectus, or in a subsequently filed document also incorporated by reference herein, modifies or supersedes that statement.

We will provide each person, including any beneficial owner, to whom a prospectus is delivered, without charge upon written or oral request, a copy of any or all of the information that has been incorporated by reference into this prospectus but not delivered with the prospectus, including exhibits that are specifically incorporated by reference into such documents. Requests should be directed to: Corporate Secretary, Co-Diagnostics, Inc., 2401 S Foothill Drive, Suite D, Salt Lake City, UT 84109 and our telephone number is (801) 438-1036.

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$150,000,000

Common Stock

Preferred Stock

Debt Securities

Warrants

Units

Rights

PROSPECTUS

____________, 2026

PART II

INFORMATION NOT REQUIRED IN THE PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution

The following table sets forth the estimated costs and expenses (except in the case of the SEC registration fee), other than underwriting discounts and commissions, payable by the registrant in connection with the offering of the securities being registered.

SEC registration fee $ 6,188.22 (1)
FINRA Filing Fee $ 23,000
Accounting fees and expenses *
Legal fees and expenses *
Miscellaneous expenses *
Total *

(1) The Company previously paid $10,910 in connection with its registration of $100,000,000 in maximum aggregate offering price of securities on its registration statement on Form S-3 (File No. 333-249651), initially filed with the SEC on October 23, 2020, of which $10,910 was used towards the $16,420 fees payable in connection with its registration of $150,000,000 in maximum aggregate offering price of securities on its registration statement on Form S-3 (File No. 333-270628), initially filed with the SEC on March 16, 2023 (the "Second Registration Statement"). Pursuant to Rule 457(p) under the Securities Act, the Company is offsetting $14,526,78 of the previous registration fee paid under the Second Registration Statement against the total registration fee of $20,715 due herewith. As a result, a $6,188.22 registration fee is payable in connection with this Registration Statement.

* These fees are calculated based on the number of issuances and amount of securities offered and accordingly cannot be estimated at this time. An estimate of the aggregate amount of these expenses will be reflected in the applicable prospectus supplement.

Item 15. Indemnification of Officers and Directors

Pursuant to our Amended and Restated Bylaws, we will, to the fullest extent permitted by the Utah Revised Business Corporation Act (the "Utah Statute"), indemnify our directors and officers with respect to expenses, settlements, judgments and fines in suits (including actions brought against a director or officer in the name of the corporation, commonly referred to as a derivative action) in which such person was made a party by reason of the fact that he or she is or was a director or officer, or being or having been such a director or officer, such person was serving as a director, officer, associate or other agent (i) for an enterprise of which we hold the majority of shares entitled to vote in the election of its directors, or (ii) at our request, for another enterprise. No such indemnification may be given if the acts or omissions of the person are finally adjudged to be intentional misconduct or a knowing violation of law, if such person is liable to the corporation for an unlawful distribution, or if such person personally received a benefit to which he or she was not entitled.

We have entered into separate indemnification agreements with our executive officers and directors, in addition to the indemnification provided for in our bylaws. These agreements, among other things, require us to indemnify our executive officers and directors for certain expenses, including attorneys' fees incurred by an executive officer or director in any action or proceeding arising out of their services as one of our executive officers or directors, or as an executive officer or director of any of our subsidiaries or any other company or enterprise to which the person provides services at our request.

Section 908 of the Utah Statute also permits a Utah corporation to purchase and maintain insurance on behalf of its officers and directors. Our Amended and Restated Bylaws permit us to purchase such insurance on behalf of our officers and directors. We maintain a policy of liability insurance for our officers and directors.

Insofar as indemnification for liabilities arising under the Securities Act may be permitted to officers, directors and controlling persons of the Company pursuant to the foregoing provisions, the Company has been advised that in the opinion of the SEC, such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable.

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Item 16. Exhibits

The exhibits listed on the accompanying Exhibit Index are filed or incorporated by reference as part of this registration statement and such Exhibit Index is incorporated by reference.

Item 17. Undertakings

(a) The undersigned registrant hereby undertakes:
1. To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:
(i) To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;
(ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the SEC pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20% change in the maximum aggregate offering price set forth in the "Calculation of Registration Fee" table in the effective registration statement; and
(iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;
provided, however, that paragraphs (a)(1)(i), (a)(1)(ii) and (a)(1)(iii) of this section do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the SEC by the registrant pursuant to section 13 or section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.
2. That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
3. To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.
4. That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser:
(i) Each prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and
(ii) Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required by section 10(a) of the Securities Act of 1933 shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof, provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date.
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5. That, for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities, the undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:
(i) Any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424;
(ii) Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant;
(iii) The portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and
(iv) Any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.
(b) For purposes of determining any liability under the Securities Act of 1933, each filing of the registrant's annual report pursuant to section 13(a) or section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan's annual report pursuant to section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
(c) Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.
(d) That, for purposes of determining any liability under the Securities Act of 1933:
(i) The information omitted from the form of prospectus filed as part of this registration statement in reliance upon Rule 430A and contained in a form of prospectus filed by the registrant pursuant to Rule 424(b)(1) or (4) or 497(h) under the Securities Act shall be deemed to be part of this registration statement as of the time it was declared effective; and
(ii) Each post-effective amendment that contains a form of prospectus shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
(e) The undersigned registrant hereby undertakes to file, if applicable, an application for the purpose of determining the eligibility of the trustee to act under subsection (a) of Section 310 of the Trust Indenture Act of 1939 ("Act") in accordance with the rules and regulations prescribed by the SEC under Section 305(b)(2) of the Act.
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EXHIBIT INDEX

Exhibit

Number

Exhibit Description

Filed with this

Report

Incorporated by

Reference herein from
Form or Schedule

Filing Date

SEC File/Reg.

Number

1.1* Form of Underwriting Agreement
3.1 Articles of Incorporation Draft Registration Statement (Exhibit 3.1) 01/12/17 377-01467
3.1.1 Amendment to the Articles of Incorporation Draft Registration Statement (Exhibit 3.1.1) 01/12/17 377-01467
3.1.2 Articles of Amendment to Articles of Incorporation Form 8-K (Exhibit 3.2) 01/03/19 001-38148
3.1.3 Articles of Amendment Form 10-K (Exhibit 3.1.3) 03/24/22 001-38148
3.1.4 Articles of Amendment Form 10-K (Exhibit 3.1.3) 03/16/2023 001-38148
3.1.5 Certificate of Amendment to the Amended and Restated Certificate of Incorporation of Co-Diagnostics, Inc. Form 8-K (Exhibit 3.1) 12/30/2025 001-38148
3.2 Amended and Restated Bylaws of Co-Diagnostics, Inc. Form 8-K (Exhibit 3.1) 04/01/22 001-38148
4.1 Form of Indenture X
4.2* Form of Debt Securities
4.3* Form of Warrant Agreement and Warrant Certificate
4.4* Form of Preferred Stock Certificate and Form of Amendment to Articles of Incorporation describing the designation of Preferred Stock
4.5* Form of Unit Agreement and Unit Certificate
4.6* Form of Rights Certificate
4.7 Warrant Agreement between Co-Diagnostics, Inc and VStock Transfer, LLC. Dated December 31, 2021 (IDMO Warrant) Form 10-K (Exhibit 10.7) 03/24/22 001-38148
5.1 Opinion of Dorsey & Whitney LLP X
23.1 Consent of Independent Registered Public Accounting Firm X
23.2 Consent of Dorsey & Whitney LLP (included in Exhibit 5.1) X
24.1 Power of Attorney (included in signature page) X
25.1* Form T-1 Statement of Eligibility under the Trust Indenture Act of 1939, as amended, of Trustee under the Indenture
107 Filing Fee Table X
* To be filed by amendment or as an exhibit to a report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and incorporated herein by reference.
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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the city of Salt Lake City, State of Utah, on May 12, 2026.

CO-DIAGNOSTICS, INC.
BY: /s/ Dwight Egan
Dwight Egan
President and Chief Executive Officer

POWER OF ATTORNEY

Each person whose signature appears below constitutes and appoints each of Dwight Egan and Brian Brown, his or her true and lawful attorney-in-fact and agent with full powers of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this registration statement and all additional registration statements pursuant to Rule 462(b) of the Securities Act of 1933, as amended, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done in about the premises, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the dates indicated.

Signature Title Date
/s/ Dwight Egan Chief Executive Officer, President and Director May 12, 2026
Dwight Egan (Principal Executive Officer)
/s/ Brian Brown Chief Financial Officer May 12, 2026
Brian Brown (Principal Financial and Accounting Officer)
/s/ Eugene Durenard Director May 12, 2026
Eugene Durenard
/s/ Edward Murphy Director May 12, 2026
Edward Murphy
/s/ James Nelson Director May 12, 2026
James Nelson
/s/ Richard Serbin Director May 12, 2026
Richard Serbin
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