Power Solutions CFO granted 1,665 phantom units

Li Xun reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Li Xun reported acquisition or exercise transactions in this Form 4 filing.

POWER SOLUTIONS INTERNATIONAL, INC. granted its CFO, Li Xun, 1,665 Phantom Stock units as compensation. These Phantom Units are cash-settled and track the average Fair Market Value of the company’s common stock over the 30 trading days before each vesting date.

One-third of the 1,665 Phantom Units will vest on each of March 6, 2027, March 6, 2028, and March 6, 2029, contingent on Li Xun’s continued service. The award does not provide any actual shares of common stock or voting rights, only a future cash payment based on share value.

Insider Trade Summary

Grant/Award: 1,665 shares

Grant/Award 1 txn

Insider Li Xun

Role CFO

Type	Security	Shares	Price	Value
Grant/Award	Phantom Stock	1,665	$0.00	$0.00

Holdings After Transaction: Phantom Stock — 1,665 contracts (Direct)

Footnotes (1)

1. F1. Each Phantom Unit represents an unfunded, unsecured right to receive a cash payment equal to the average Fair Market Value per share of the Issuer's Common Stock over the thirty (30) trading days immediately preceding the applicable vesting date. Phantom Units are settled in cash only and do not entitle the Reporting Person to any shares of Common Stock or voting rights. One-third of the Phantom Units vest on each of March 6, 2027, March 6, 2028 and March 6, 2029, subject to the Reporting Person's continuous service with the Issuer or its affiliates.

Key Figures

Phantom Units granted: 1,665 units Vesting schedule: 1/3 on each date Exercise/Conversion price: $0.00 per unit

3 metrics

Phantom Units granted 1,665 units Phantom Stock award to CFO Li Xun on March 6, 2026

Vesting schedule 1/3 on each date Vests on March 6, 2027, March 6, 2028 and March 6, 2029

Exercise/Conversion price $0.00 per unit Phantom Units are granted at no cost, cash-settled only

Key Terms

Phantom Stock, Phantom Units, Fair Market Value, vesting date

4 terms

Phantom Stock financial

"security_title: "Phantom Stock""

A phantom stock is a form of compensation that gives employees or executives the benefits of stock ownership, such as the increase in stock value, without actually giving them real shares. It acts like a promise to pay the employee the equivalent value of company stock later, often as a bonus or incentive. This allows companies to motivate and reward staff without diluting ownership or transferring actual shares.

Phantom Units financial

"Each Phantom Unit represents an unfunded, unsecured right to receive a cash payment"

Phantom units are a form of employee compensation that mimics ownership in a company without issuing real shares: recipients receive cash or stock value tied to the company’s share price or performance when the units vest. They matter to investors because phantom units align employee incentives with shareholder value while avoiding share dilution; however, they create future cash obligations and can affect a company’s financial statements and cash flow.

Fair Market Value financial

"equal to the average Fair Market Value per share of the Issuer's Common Stock"

The price a willing buyer and a willing seller would agree on for an asset or security when neither is under pressure and both have access to the same information. Think of it as the market’s neutral estimate of what something is worth, like the price two neighbors would settle on for a car after comparing similar listings. Investors care because fair market value guides buying and selling decisions, tax reporting, portfolio valuation, and how accurately company assets are reflected in financial statements.

vesting date financial

"the thirty (30) trading days immediately preceding the applicable vesting date"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did PSIX report for CFO Li Xun?

POWER SOLUTIONS INTERNATIONAL reported that CFO Li Xun received 1,665 Phantom Stock units as a compensation grant. These units are derivative, cash-settled instruments whose value is tied to the company’s common stock, rather than traditional shares or options.

How do the Phantom Stock units granted to PSIX CFO Li Xun vest?

The 1,665 Phantom Units granted to PSIX CFO Li Xun vest in three equal installments. One-third vests on March 6, 2027, another third on March 6, 2028, and the final third on March 6, 2029, assuming continuous service with the company or its affiliates.

Do PSIX Phantom Stock units give CFO Li Xun actual shares or voting rights?

The Phantom Stock units do not provide any shares or voting rights to CFO Li Xun. They represent an unfunded, unsecured right to receive cash based on the average Fair Market Value of PSIX common stock over 30 trading days before each vesting date.

How is the cash value of PSIX Phantom Stock units for Li Xun determined?

Each Phantom Unit entitles Li Xun to a cash payment equal to the average Fair Market Value per share of PSIX common stock. The average is calculated over the 30 trading days immediately before the applicable vesting date, directly linking payout size to share performance.

What ownership position does PSIX report for CFO Li Xun after this Phantom Unit grant?

Following the grant, PSIX reports that Li Xun holds 1,665 Phantom Stock units as a derivative position. These are settled only in cash and do not increase his direct share ownership, but they align part of his compensation with future stock price performance.

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

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Accepted by SEC EDGAR 04/17/2026 - 11:29 AM EDT 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^*

Li Xun

(Last) (First) (Middle)

C/O 201 MITTEL DR

(Street)

WOOD DALE ILLINOIS 60191

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/06/2026

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

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
Phantom Stock	(1)	03/06/2026		A		1,665		(1)	(1)	Common Stock	1,665	$0	1,665	D

Explanation of Responses:

1. Each Phantom Unit represents an unfunded, unsecured right to receive a cash payment equal to the average Fair Market Value per share of the Issuer's Common Stock over the thirty (30) trading days immediately preceding the applicable vesting date. Phantom Units are settled in cash only and do not entitle the Reporting Person to any shares of Common Stock or voting rights. One-third of the Phantom Units vest on each of March 6, 2027, March 6, 2028 and March 6, 2029, subject to the Reporting Person's continuous service with the Issuer or its affiliates.

	/s/ Kennith Li	04/17/2026
	** 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)