Profusa (PFSA) major holder HRT FINANCIAL LP reports August net share sales

Rhea-AI Filing Summary

Profusa, Inc. reported insider trading activity by HRT FINANCIAL LP, a ten percent owner of PFSA. Over August 5–7, 2026, the holder executed a mix of open-market trades in common stock, including 926 shares purchased at $0.943 and sales totaling 1,307 shares at prices around $0.94–0.95, resulting in a net reduction of 381 shares. The Rule 10b5-1 plan checkbox was not marked for these transactions.

Insider Trade Summary

Net Seller: 381 shares

Net Sell 3 txns

Insider HRT FINANCIAL LP

Role 10% Owner

Bought 926 shs ($873.22)

Sold 1,307 shs ($1K)

Type	Security	Shares	Price	Value
Sale	Common Stock	924	$0.946	$874.10
Purchase	Common Stock	926	$0.943	$873.22
Sale	Common Stock	383	$0.942	$360.79

Holdings After Transaction: Common Stock — 109,288 shares (Direct)

Key Figures

Shares sold on 2026-08-07: 924 shares at $0.946 per share Shares purchased on 2026-08-06: 926 shares at $0.943 per share Shares sold on 2026-08-05: 383 shares at $0.942 per share +3 more

6 metrics

Shares sold on 2026-08-07 924 shares at $0.946 per share Open-market sale of Profusa common stock by HRT FINANCIAL LP

Shares purchased on 2026-08-06 926 shares at $0.943 per share Open-market purchase of Profusa common stock by HRT FINANCIAL LP

Shares sold on 2026-08-05 383 shares at $0.942 per share Open-market sale of Profusa common stock by HRT FINANCIAL LP

Total shares purchased 926 shares Aggregate open-market purchases during August 5–7, 2026

Total shares sold 1,307 shares Aggregate open-market sales during August 5–7, 2026

Net share change 381 shares net sold Net of purchases and sales reported in the period

Key Terms

ten percent owner, Rule 10b5-1, open market or private transaction

3 terms

ten percent owner regulatory

"HRT FINANCIAL LP is identified as a ten percent owner of PFSA."

Rule 10b5-1 regulatory

"The Rule 10b5-1 plan checkbox is not checked for these trades."

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

open market or private transaction financial

"Transaction code descriptions note a sale or 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 08/10/2026 - 03:39 PM Accepted by SEC EDGAR 08/10/2026 - 03:39 PM Learn about SEC filing dates

FAQ

What insider transactions did HRT FINANCIAL LP report for Profusa (PFSA)?

HRT FINANCIAL LP, a ten percent owner of Profusa (PFSA), reported one open-market purchase of 926 shares and two sales totaling 1,307 shares of common stock between August 5 and 7, 2026.

Were Profusa (PFSA) insider trades by HRT FINANCIAL LP under a Rule 10b5-1 plan?

The filing’s Rule 10b5-1 checkbox is not checked, indicating these August 2026 trades by HRT FINANCIAL LP were not affirmatively reported as executed under a Rule 10b5-1 trading plan.

What prices did HRT FINANCIAL LP trade Profusa (PFSA) shares at?

HRT FINANCIAL LP reported trading Profusa (PFSA) common stock at $0.942–$0.946 per share, including a purchase at $0.943 and sales at $0.942 and $0.946 during August 5–7, 2026.

What was the net share change from HRT FINANCIAL LP’s Profusa (PFSA) trades?

Across the reported period, HRT FINANCIAL LP had net sales of 381 shares of Profusa (PFSA) common stock, based on 926 shares bought and 1,307 shares sold in open-market transactions.

Is HRT FINANCIAL LP a major shareholder of Profusa (PFSA)?

Yes. HRT FINANCIAL LP is identified in the filing as a ten percent owner of Profusa (PFSA), meaning it holds at least ten percent of the company’s registered class of securities.

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	08/05/2026		S		383	D	$0.942	109,286	D
Common Stock	08/06/2026		P		926	A	$0.943	110,212	D
Common Stock	08/07/2026		S		924	D	$0.946	109,288	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	08/10/2026
	** 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)