Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Kazley Michael John 2. Issuer Name and Ticker or Trading Symbol NovaBay Pharmaceuticals, Inc. [NBY] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Executive Officer (Last) (First) (Middle) 1111 LINCOLN ROAD, SUITE 500 3. Date of Earliest Transaction (Month/Day/Year) 10/16/2025 (Street) MIAMI BEACH, FL 33139 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 10/21/2025(1) C 56,806,080(1) A $ 0 (1) 56,806,080(1) I By R01 Entities(2)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Pre-Funded Warrants (Right to Buy)

$0.01(3)

10/16/2025(3)

P

2,702,703(3)

01/01/2026(3)

(3)

Common Stock

2,702,703(3)

$ 0

2,702,703(3)

I

By R01 Entities(2)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Kazley Michael John 1111 LINCOLN ROAD, SUITE 500 MIAMI BEACH, FL 33139	X	X	Chief Executive Officer

Signatures

/s/ Michael Kazley		11/03/2025
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	This represents (i) the conversion of 220,663 shares of the Issuer's Series D Non-Voting Convertible Preferred Stock, par value $0.01 per share (the "Series D Preferred Stock") into 35,306,080 shares of the Issuer's common stock, par value $0.01 per share (the "Common Stock") and (ii) the conversion of 134,375 shares of the Issuer's Series E Non-Voting Convertible Preferred Stock, par value $0.01 per share (the "Series E Preferred Stock") into 21,500,000 shares of the Issuer's Common Stock, both of which occurred on October 21, 2025 following stockholder approval at the Issuer's annual meeting on October 16, 2025 of proposals 5 and 9 set forth in the Issuer's Definitive Proxy Statement on Schedule 14A, filed by the Issuer with the Securities and Exchange Commission on September 23, 2025.
(2)	The reported securities may also be deemed to be beneficially owned by R01 Fund LP ("R01 LP"), R01 Capital LLC ("R01 Capital") and R01 Capital Manager LLC ("R01 Capital Manager" and together with R01 LP, R01 Capital and the Reporting Person, the "R01 Entities"), each of which or whom disclaim beneficial ownership of these shares, except to the extent of its or his pecuniary interest in such shares, if any. R01 Capital is the general partner of R01 LP. R01 Capital Manager is the investment manager for R01 Capital. The Reporting Person is the managing member of R01 Capital Manager.
(3)	On October 16, 2025, the Issuer issued and sold to R01 LP pre-funded warrants (the "Pre-Funded Warrants") to purchase an aggregate 2,702,703 shares of the Issuer's Common Stock. The purchase price was $1.10 per warrant, representing 110% of the closing price of the Common Stock on the day before the issuance, less the $0.01 exercise price for each warrant. The Pre-Funded Warrants have no expiration date and are exercisable for shares of Common Stock at any time after January 1, 2026, subject to receipt of stockholder approval.

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