Profusa (NASDAQ: PFSA) 10% owner sells 3,163 shares

Rhea-AI Filing Summary

Profusa, Inc. (PFSA) had a Form 4 filed by major shareholder HRT Financial LP, a ten percent owner. On August 14, 2026, HRT Financial LP reported selling 3,163 shares of Profusa common stock at $0.902 per share, leaving it with 71,035 shares held directly.

Insider Trade Summary

Net Seller: 3,163 shares

Net Sell 1 txn

Insider HRT FINANCIAL LP

Role 10% Owner

Sold 3,163 shs ($3K)

Type	Security	Shares	Price	Value
Sale	Common Stock	3,163	$0.902	$3K

Holdings After Transaction: Common Stock — 71,035 shares (Direct)

Key Figures

Shares sold: 3,163 shares Sale price: $0.902 per share Shares owned after transaction: 71,035 shares +1 more

4 metrics

Shares sold 3,163 shares Common Stock sale on August 14, 2026

Sale price $0.902 per share Price for 3,163 PFSA common shares sold

Shares owned after transaction 71,035 shares Direct holdings of HRT Financial LP after the sale

Net shares sold 3,163 shares Net-sell direction in transaction summary

Key Terms

ten percent owner, Common Stock, open market or private transaction

3 terms

ten percent owner regulatory

"HRT FINANCIAL LP is reported as a ten percent owner"

Common Stock financial

"The reported transaction involved Profusa, Inc. Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

open market or private transaction financial

"Transaction code description notes a sale in open market or private transaction"

FAQ

What insider transaction did PFSA report involving HRT Financial LP?

Profusa, Inc. (PFSA) reported that HRT Financial LP sold 3,163 shares of common stock. The sale occurred on August 14, 2026 and was reported as a sale in an open market or private transaction.

At what price were the PFSA shares sold by HRT Financial LP?

HRT Financial LP sold PFSA common stock at an average price of $0.902 per share. This price reflects the transaction reported for 3,163 shares on August 14, 2026 in a sale classified as open market or private.

How many PFSA shares does HRT Financial LP own after this transaction?

After the reported sale, HRT Financial LP holds 71,035 PFSA common shares directly. This post-transaction holding reflects its remaining stake as disclosed in the Form 4 following the sale of 3,163 shares on August 14, 2026.

Is HRT Financial LP a major shareholder of PFSA?

Yes, HRT Financial LP is reported as a ten percent owner of Profusa, Inc. (PFSA). Its status as a 10% owner requires public reporting of trades, such as the August 14, 2026 sale of 3,163 common shares.

Was the PFSA insider sale made under a Rule 10b5-1 trading plan?

The filing indicates the Rule 10b5-1 checkbox was not checked for this transaction. That means the reported August 14, 2026 sale of 3,163 PFSA shares was not affirmatively identified as being executed under a pre-arranged Rule 10b5-1 trading plan.

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 08/18/2026 - 04:02 PM Accepted by SEC EDGAR 08/18/2026 - 04:02 PM Learn about SEC filing dates

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	08/14/2026		S		3,163	D	$0.902	71,035	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	08/18/2026
	** 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)