HRT Financial boosts Profusa, Inc. (PFSA) stake with stock purchase

Rhea-AI Filing Summary

Profusa, Inc. reported that major shareholder HRT FINANCIAL LP, a ten percent owner, purchased 1,310 shares of common stock on July 29, 2026 in a purchase classified as a "Purchase in open market or private transaction" at $1.01 per share. Following this trade, HRT FINANCIAL LP directly holds 83,871 shares of Profusa common stock.

Insider Trade Summary

Net Buyer: 1,310 shares

Net Buy 1 txn

Insider HRT FINANCIAL LP

Role 10% Owner

Bought 1,310 shs ($1K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	1,310	$1.01	$1K

Holdings After Transaction: Common Stock — 83,871 shares (Direct)

Key Figures

Shares purchased: 1310.0000 shares Purchase price: $1.0100 per share Holdings after transaction: 83871.0000 shares +1 more

4 metrics

Shares purchased 1310.0000 shares Common Stock acquired on 2026-07-29

Purchase price $1.0100 per share Transaction classified as purchase in open market or private transaction

Holdings after transaction 83871.0000 shares Direct Profusa common stock held by HRT FINANCIAL LP following the trade

Net buy shares 1310 shares Net effect of reported transactions in this Form 4

Key Terms

ten percent owner, Purchase in open market or private transaction, beneficial ownership

3 terms

ten percent owner regulatory

"HRT FINANCIAL LP is listed as a ten percent owner of Profusa"

Purchase in open market or private transaction regulatory

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

beneficial ownership financial

"Ten percent owner status relates to beneficial ownership of Profusa shares"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

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 07/30/2026 - 03:04 PM Accepted by SEC EDGAR 07/30/2026 - 03:00 PM Learn about SEC filing dates

FAQ

What insider transaction was reported for Profusa (PFSA) by HRT FINANCIAL LP?

HRT FINANCIAL LP reported a purchase of 1,310 Profusa common shares on July 29, 2026 at $1.01 per share, classified as a purchase in open market or private transaction.

How many Profusa (PFSA) shares does HRT FINANCIAL LP own after this Form 4 transaction?

After the reported trade, HRT FINANCIAL LP directly holds 83,871 shares of Profusa common stock. This figure reflects holdings following the July 29, 2026 purchase of 1,310 shares disclosed in the Form 4.

What price did HRT FINANCIAL LP pay per share for Profusa (PFSA) stock?

HRT FINANCIAL LP paid $1.01 per share for Profusa common stock. The Form 4 describes the transaction as a purchase in open market or private transaction executed on July 29, 2026.

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

Yes. HRT FINANCIAL LP is identified as a ten percent owner of Profusa, Inc. The Form 4 lists HRT FINANCIAL LP with the status of ten percent owner, indicating significant beneficial ownership.

Was the Profusa (PFSA) insider transaction under a Rule 10b5-1 trading plan?

The filing shows the Rule 10b5-1 checkbox as not affirmed (aff_10b5_one is false). The transaction is therefore not indicated as executed under a pre-arranged Rule 10b5-1 trading plan in this report.

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	07/29/2026		P		1,310	A	$1.01	83,871	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	07/30/2026
	** 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)