Initial Statement of Beneficial Ownership (Form 3)

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF 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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(Print or Type Responses)

1. Name and Address of Reporting Person * HARRINGTON WILLIAM T 2. Date of Event Requiring Statement (Month/Day/Year) 05/07/2026 3. Issuer Name and Ticker or Trading Symbol Mobia Medical, Inc. [MOBI] (Last) (First) (Middle) 2802 FLINTROCK TRACE, SUITE 226 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) 5. If Amendment, Date Original Filed (Month/Day/Year) (Street) AUSTIN, TX 78738 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 Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)

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

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Series E-2 Preferred Stock	(1)	(1)	Common Stock	1,128,438	(1)	I	See Footnote(2)
Series F Preferred Stock	(1)	(1)	Common Stock	327,288	(1)	I	See Footnote(2)
Series F Preferred Stock	(1)	(1)	Common Stock	872,770	(1)	I	See Footnote(3)
Convertible Notes	(4)	(4)	Common Stock	284,324	(4)	I	See Footnote(2)
Convertible Notes	(4)	(4)	Common Stock	264,746	(4)	I	See Footnote.(3)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
HARRINGTON WILLIAM T 2802 FLINTROCK TRACE, SUITE 226 AUSTIN, TX 78738	X	X

Signatures

/s/ Chase Leavitt, Attorney-in-Fact		05/07/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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)	Each share of our Series F Preferred Stock and Series E-2 Preferred Stock will convert into Common Stock immediately prior to the completion of the Issuer's initial public offering pursuant to its terms.
(2)	The securities are held by Osage University Partners III, LP ("OUP III"). Osage University GP III, LLC ("OUP III GP") is the general partner of OUP III. The Reporting Person is a manager of OUP III GP and may be deemed to share voting and dispositive power over the shares held by OUP III. Each of OUP III GP and the Reporting Person disclaims beneficial ownership over the securities held by OUP III, except to the extent of their pecuniary interests therein, if any.
(3)	The securities are held by Osage University Partners IV, LP ("OUP IV"). Osage University GP IV, LLC ("OUP IV GP") is the general partner of OUP IV. The Reporting Person is a manager of OUP IV GP and may be deemed to share voting and dispositive power over the shares held by OUP IV. Each of OUP IV GP and the Reporting Person disclaims beneficial ownership over the securities held by OUP IV, except to the extent of their pecuniary interests therein, if any.
(4)	The Convertible Notes will automatically convert into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.
Remarks: Exhibit 24 - Power of Attorney.

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