[Form 4] Power Solutions International, Inc. Insider Trading Activity

Rhea-AI Filing Summary

He Hong, a director of Power Solutions International, Inc. (PSIX), reported an insider sale on Form 4. On 09/08/2025 He Hong sold 1,000 shares of the company's common stock at $89 per share and, after the transaction, beneficially owned 25,250 shares. The Form 4 was signed and filed with a datestamp of 09/10/2025. The filing identifies the reporting person as a director and indicates the report was filed by one reporting person.

Positive

• Transaction was disclosed promptly with a signed Form 4 filed and dated 09/10/2025
• Filing includes clear post-transaction ownership showing 25,250 shares beneficially owned

Negative

• Insider sale of 1,000 shares may be of interest to investors monitoring insider activity

Insights

Financial Analyst

TL;DR: Insider sale disclosed; size appears modest relative to total shares outstanding but exact materiality is not stated.

The Form 4 shows a sale of 1,000 shares at $89 per share by director He Hong, leaving beneficial ownership of 25,250 shares. This is a straightforward, routine Section 16 disclosure of a non-derivative disposition. The filing contains no information about the reason for the sale or whether proceeds were used for personal or other purposes, and it does not report any derivative transactions.

Corporate Governance Expert

TL;DR: Timely disclosure by a director; the filing contains standard Section 16 details with signature.

The document satisfies Form 4 disclosure requirements: it identifies the reporting person, relationship to the issuer (director), transaction date, number of shares sold, sale price, post-transaction ownership and includes a manual signature dated 09/10/2025. There are no amendments, derivative transactions or additional explanatory notes in the filing.

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
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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^*

He Hong

(Last) (First) (Middle)

C/O 201 MITTEL DRIVE

(Street)

WOOD DALE IL 60191

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
POWER SOLUTIONS INTERNATIONAL, INC. [ PSIX ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
09/08/2025

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

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

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

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	09/08/2025		S		1,000	D	$89	25,250	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:

	/s/ Hong He	09/10/2025
	** 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.

FAQ

What did PSIX director He Hong report on Form 4?

He Hong reported a sale of 1,000 shares of Power Solutions International common stock on 09/08/2025 at a price of $89 per share.

How many PSIX shares does He Hong beneficially own after the transaction?

After the reported sale, He Hong beneficially owns 25,250 shares.

When was the Form 4 for this transaction signed and filed?

The Form 4 is signed by He Hong and dated 09/10/2025.

What is He Hong's relationship to PSIX as reported on the form?

The Form 4 identifies He Hong as a director of Power Solutions International.

Did the filing report any derivative transactions or amendments?

No derivative transactions or amendments are reported in the provided Form 4 content.