SEC FORM 4

SEC FORM 4SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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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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 for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Knechtel Fred S.

(Last)

(First)

(Middle)

626 BANCROFT WAY, SUITE A

(Street)

BERKELEY

CALIFORNIA

94710

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Profusa, Inc. [ PFSA ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/12/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	08/12/2026		C		301,991⁽¹⁾	A	$4.28⁽²⁾	301,991⁽¹⁾	I	By NorthView Sponsor I LLC⁽³⁾
Common Stock								147	D

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 Securities Underlying Derivative Security (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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Convertible Promissory Note	$4.28⁽²⁾	08/12/2026		C			$1,292,521⁽⁴⁾	05/04/2026⁽⁵⁾	12/31/2026	Common Stock	301,991⁽¹⁾	$0	$577,275⁽⁶⁾	I	By NorthView Sponsor I LLC⁽³⁾

Explanation of Responses:

1. On August 12, 2026, 1,207,964 shares of Common Stock were issued upon conversion of a portion of the Convertible Promissory Note. Following a 1-for-4 reverse stock split effected after the conversion, the number of shares held became 301,991.

2. The conversion price is equal to the higher of (i) $1.07 and (ii) the closing price of the Common Stock on the trading day immediately preceding the delivery of the Conversion Notice, as reported on The Nasdaq Stock Market, pursuant to Amendment No. 3 to the Note Modification and Conversion Agreement dated August 12, 2026. The pre-split conversion price of $1.07 per share is equivalent to $4.28 per share on a post-split basis following the 1-for-4 reverse stock split.

3. Fred Knechtel is a manager of NorthView Sponsor I LLC and may be deemed to share beneficial ownership of the securities held by NorthView Sponsor I LLC. Mr. Knechtel disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

4. Represents the conversion of $1,292,521 principal amount of the Convertible Promissory Note into 1,207,964 shares of Common Stock (301,991 shares on a post-split basis), reflecting conversion at the $1.07 per share ($4.28 per share on a post-split basis) price pursuant to the Conversion Notice dated August 12, 2026.

5. The Note became convertible on May 4, 2026 (the Registration Effective Date), pursuant to Section 2.1 of the Note Modification and Conversion Agreement dated April 24, 2026.

6. Represents the remaining principal balance of the Note following conversion.

	/s/ Fred Knechtel	08/19/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
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* Form 4: SEC 1474 (03-26)