Profusa, Inc. (PFSA) major holder adds 9,874 common shares

Rhea-AI Filing Summary

Profusa, Inc. large shareholder HRT Financial LP, identified as a ten percent owner, reported two non-derivative purchases of Profusa common stock. It bought 8,811 shares at $1.05 per share on July 31, 2026 and 1,063 shares at $1.01 on July 30, 2026, for total reported purchases of 9,874 shares.

Insider Trade Summary

Net Buyer: 9,874 shares

Net Buy 2 txns

Insider HRT FINANCIAL LP

Role 10% Owner

Bought 9,874 shs ($10K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	8,811	$1.05	$9K
Purchase	Common Stock	1,063	$1.01	$1K

Holdings After Transaction: Common Stock — 93,745 shares (Direct)

Key Figures

Shares purchased 2026-07-31: 8,811 shares at $1.05 per share Shares purchased 2026-07-30: 1,063 shares at $1.01 per share Total shares purchased: 9,874 shares +1 more

4 metrics

Shares purchased 2026-07-31 8,811 shares at $1.05 per share Non-derivative common stock purchase on July 31, 2026

Shares purchased 2026-07-30 1,063 shares at $1.01 per share Non-derivative common stock purchase on July 30, 2026

Total shares purchased 9,874 shares Sum of reported purchases in this Form 4

Reported buy transactions 2 transactions Both coded as purchases of common stock

Key Terms

ten percent owner, non-derivative, Purchase in open market or private transaction

3 terms

ten percent owner regulatory

"HRT Financial LP is identified as a ten percent owner of Profusa"

non-derivative regulatory

"Each transaction involves non-derivative common stock"

Purchase in open market or private transaction financial

"Transaction code description is Purchase in open market or private transaction"

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/03/2026 - 04:05 PM Accepted by SEC EDGAR 08/03/2026 - 04:04 PM Learn about SEC filing dates

FAQ

What insider activity did HRT Financial LP report for Profusa (PFSA)?

HRT Financial LP reported two purchases of Profusa (PFSA) common stock, totaling 9,874 shares. One trade occurred on July 30, 2026 and the other on July 31, 2026, both classified as non-derivative open-market or private transactions.

How many Profusa (PFSA) shares did HRT Financial LP buy on July 31, 2026?

On July 31, 2026, HRT Financial LP bought 8,811 shares of Profusa (PFSA) common stock at $1.05 per share. This was reported as a non-derivative purchase in an open-market or private transaction on a Form 4 filing.

What were the details of HRT Financial LP’s July 30, 2026 Profusa (PFSA) trade?

On July 30, 2026, HRT Financial LP purchased 1,063 Profusa (PFSA) shares at $1.01 per share. The trade involved common stock classified as a non-derivative security and was coded as a purchase in an open-market or private transaction.

Is HRT Financial LP a significant shareholder of Profusa (PFSA)?

Yes. HRT Financial LP is flagged as a ten percent owner of Profusa (PFSA). This status means the holder owns at least ten percent of the company’s registered class of securities, making its transactions reportable on Form 4.

Were any Profusa (PFSA) derivative securities involved in HRT Financial LP’s Form 4?

No derivative securities were reported. The Form 4 lists only non-derivative common stock purchases, and the derivative position summary is empty, indicating no options, warrants, or similar instruments were included in this particular filing.

What is the overall net direction of HRT Financial LP’s latest Profusa (PFSA) trades?

The filing shows a net buy position, with 9,874 shares purchased and no reported sales. Both transactions are coded as acquisitions of common stock, and the transaction summary indicates net-buy activity for this reporting period.

SEC 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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

HRT FINANCIAL LP

(Last) (First) (Middle)

3 WORLD TRADE CENTER, 175 GREENWICH STRE

76TH FLOOR

(Street)

NEW YORK NEW YORK 10007

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/28/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	07/30/2026		P		1,063	A	$1.01	84,934	D
Common Stock	07/31/2026		P		8,811	A	$1.05	93,745	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	Adam Nunes	08/03/2026
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)