SCHEDULE 13G

Item 1.

(a)

Name of issuer:

Profusa, Inc.

(b)

Address of issuer's principal executive offices:

626 Bancroft Way, Suite A, Berkeley, CA 94710

Item 2.

(a)

Name of person filing:

(i) Ascent Partners Fund LLC, a Delaware limited liability company ("Ascent"); (ii) Ascent Partners LLC, a Delaware limited liability company ("AP"); (iii) Dominion Capital LLC, a Connecticut limited liability company ("Dominion"); (iv) Dominion Capital GP LLC, a Delaware limited liability company ("Dominion GP"); (v) Eagle Claw Corp., a Delaware corporation ("Eagle Claw"); (vi) Masada Group Holdings LLC, a Florida limited liability company ("Masada"); (vii) Mikhail Gurevich; (viii) Gennadiy Gurevich; and (ix) Alon Brenner. The foregoing persons are hereinafter sometimes collectively referred to as the "Reporting Persons". Any disclosures herein with respect to persons other than the Reporting Persons are made on information and belief after making inquiry to the appropriate party. The Reporting Persons have entered into a Joint Filing Agreement, a copy of which was filed as Exhibit 1 to Amendment 3 to this Schedule 13G filed with the SEC on June 5, 2026, pursuant to which such Reporting Persons have agreed to file this Schedule 13G and all subsequent amendments to the Schedule 13G jointly in accordance with the provisions of Rule 13d-1(k) of the Act. The filing of this Schedule 13G should not be construed in and of itself as an admission by any Reporting Person as to beneficial ownership of the shares of Common Stock reported herein.

(b)

Address or principal business office or, if none, residence:

19505 Biscayne Blvd., Suite 2350, Aventura, FL 33180

(c)

Citizenship:

Each of Ascent, AP, and Dominion GP is a Delaware limited liability company. Eagle Claw Corp. is a Delaware corporation. Dominion is a Connecticut limited liability company. Masada is a Florida limited liability company. Each of Mikhail Gurevich, Gennadiy Gurevich, and Alon Brenner is a citizen of the United States.

(d)

Title of class of securities:

Common Stock, par value $0.0001 per share

(e)

CUSIP No.:

Item 4.

Ownership

(a)

Amount beneficially owned:

The information required by this item with respect to each reporting person is set forth on rows (5) through (9) and (11) of the cover page to this Schedule 13G and is incorporated herein by reference for each such reporting person. The ownership percentages reported are based on (i) 605,647 shares of Common Stock outstanding as of August 19, 2026, as reported by the issuer in its 10-Q filed with the U.S. Securities and Exchange Commission on August 19, 2026 and (ii) shares of Common Stock (if any) issued or issuable upon partial conversion of the Convertible Notes, partial exercises of the Warrant and the purchase of some Common Stock shares pursuant to the ELOC Agreement, each subject to a provision contained therein limiting beneficial ownership to an aggregate maximum of 9.99% (the "Blocker Amount"). Due to the Blocker Amount limitation, Ascent is currently prohibited from fully converting the Convertible Notes into shares of Common Stock, fully exercising the Warrant or purchasing all of the shares purchasable pursuant to the ELOC Agreement. The percentage set forth on row (11) and the number of shares of Common Stock set forth on rows (5) through (9) of the cover page for each reporting person gives effect to the Blocker Amount in the Convertible Notes, the Warrant and the ELOC Agreement. Consequently, as of September 30, 2026, each of the reporting persons are not deemed to be beneficial owners of the full amount of shares of Common Stock issuable upon conversion of the Convertible Notes, exercise of the Warrant or purchasable pursuant to the ELOC Agreement. As of September 30, 2026, Ascent held 50,000 shares. In addition, as of September 30, 2026, there are 266,600 shares of Common Stock that may be issued upon partial conversion of the Convertible Notes, partial exercise of the Warrant or that may be purchased pursuant to the ELOC, with such amount being the maximum issuable up to the Blocker Amount. The shares held directly by Ascent and the remaining shares issuable (up to the Blocker Amount) pursuant to the Convertible Notes, the exercise of the Warrant or that may be purchased pursuant to the ELOC are collectively referred to herein as the "Shares". Gennadiy Gurevich is the President of Eagle Claw. Mikhail Gurevich is the Chief Investment Officer of Eagle Claw. In these capacities, each of Mikhail Gurevich and Gennadiy Gurevich manages Eagle Claw, Dominion GP, Dominion Capital, AP and Ascent. Eagle Claw manages Dominion GP, Dominion Capital, AP and Ascent. Dominion GP manages Dominion Capital, AP and Ascent. Dominion Capital manages AP and Ascent. Alon Brenner manages Masada, AP and Ascent. Masada manages AP and Ascent. AP manages Ascent. Ascent has the power to dispose of and the power to vote the shares of Common Stock beneficially owned by it. Each of Mikhail Gurevich, Gennadiy Gurevich, Eagle Claw, Dominion GP, Dominion, Alon Brenner, Masada and AP may be deemed to beneficially own, and have the power to vote, the shares of Common Stock beneficially owned by Ascent and the other companies they are listed above as managing.

(b)

Percent of class:

9.99 %

(c)

Number of shares as to which the person has:

(i) Sole power to vote or to direct the vote:

(ii) Shared power to vote or to direct the vote:

316,600

(iii) Sole power to dispose or to direct the disposition of:

(iv) Shared power to dispose or to direct the disposition of:

316,600

Item 6.

Ownership of more than 5 Percent on Behalf of Another Person.

Not Applicable

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.

Not Applicable

Item 8.

Identification and Classification of Members of the Group.

If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(J), so indicate under Item 3(j) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group.

See Exhibit 1 hereto.

Item 9.

Notice of Dissolution of Group.

Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Ascent Partners Fund LLC

Signature:	/s/ Ascent Partners Fund LLC
Name/Title:	Mikhail Gurevich, signatory for Managing Member of Managing Member
Date:	10/27/2026

Ascent Partners LLC

Signature:	/s/ Ascent Partners LLC
Name/Title:	Mikhail Gurevich, signatory for Managing Member
Date:	10/27/2026

Dominion Capital LLC

Signature:	/s/ Dominion Capital LLC
Name/Title:	Mikhail Gurevich, Chief Investment Officer of Eagle Claw Corp., Manager of Dominion Capital GP LLC, Manager of Dominion Capital LLC
Date:	10/27/2026

Dominion Capital GP LLC

Signature:	/s/ Dominion Capital GP LLC
Name/Title:	Mikhail Gurevich, Chief Investment Officer of Eagle Claw Corp., Manager of Dominion Capital GP LLC
Date:	10/27/2026

Eagle Claw Corp.

Signature:	/s/ Eagle Claw Corp.
Name/Title:	Gennadiy Gurevich, President
Date:	10/27/2026

Masada Group Holdings LLC

Signature:	/s/ Masada Group Holdings LLC
Name/Title:	Alon Brenner, Managing Member
Date:	10/27/2026

Mikhail Gurevich

Signature:	/s/ Mikhail Gurevich
Name/Title:	Mikhail Gurevich
Date:	10/27/2026

Gennadiy Gurevich

Signature:	/s/ Gennadiy Gurevich
Name/Title:	Gennadiy Gurevich
Date:	10/27/2026

Alon Brenner

Signature:	/s/ Alon Brenner
Name/Title:	Alon Brenner
Date:	10/27/2026

Comments accompanying signature: LIST OF EXHIBITS Exhibit No. 1 - Joint Filing Agreement, dated June 5, 2026 (incorporated by reference to Exhibit 1 to the Schedule 13G/A filed by the Reporting Persons with the SEC on June 5, 2026)