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

Power Solutions (PSIX) insider sale: Simpkins reduces stake to 35,000

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Frank P. Simpkins, a director of Power Solutions International (PSIX), reported sales of common stock on 08/12/2025. The Form 4 discloses six sale transactions totaling 5,000 shares, executed in multiple tranches with reported weighted-average prices per tranche ranging from $91.741 to $96.205 (detailed price ranges are provided in the footnotes).

Following these transactions the reporting person’s beneficial ownership is reported as 35,000 shares. No derivative transactions were reported on this Form 4, and the filing indicates it was submitted by one reporting person who is a company director.

Positive

  • None.

Negative

  • Director Frank P. Simpkins sold 5,000 shares of PSIX on 08/12/2025, reducing beneficial ownership to 35,000 shares

Insights

TL;DR: Director sold 5,000 PSIX shares in multiple trades at prices near $92–$96, reducing holdings to 35,000 shares.

The transactions are disclosed as six sales on 08/12/2025 with weighted-average per-tranche prices and footnote ranges. The Form 4 shows only non-derivative disposals and individual filing status. From a trading-disclosure perspective, the filing is complete in listing per-tranche weighted averages and post-transaction beneficial ownership, which allows investors to see the scale and timing of the insider sales without derivative complexity.

TL;DR: Routine director sales disclosed; no derivatives or special arrangements reported, filing appears procedural and transparent.

The reporting person is identified as a director and the Form 4 documents six separate sales on a single date. Footnotes disclose price ranges for each tranche and offer to provide per-price allocation on request, which supports transparency. The record does not show any stock-based option exercises or other related-party transactions in this filing.

Insider SIMPKINS FRANK P
Role Director
Sold 5,000 shs ($475K)
Type Security Shares Price Value
Sale Common Stock 108 $91.741 $10K
Sale Common Stock 384 $92.522 $36K
Sale Common Stock 282 $93.679 $26K
Sale Common Stock 912 $94.462 $86K
Sale Common Stock 3,108 $95.464 $297K
Sale Common Stock 206 $96.205 $20K
Holdings After Transaction: Common Stock — 39,892 shares (Direct)
Footnotes (1)
  1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.66 to $91.85. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.22 to $92.99. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $93.10 to $93.99. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $94.00 to $94.98. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.00 to $95.99. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $96.00 to $96.62. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Form 4 Insider Transactions: What Each Field Means →
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*
SIMPKINS FRANK P
(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)
08/12/2025
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 08/12/2025 S 108 D $91.741(1) 39,892 D
Common Stock 08/12/2025 S 384 D $92.522(2) 39,508 D
Common Stock 08/12/2025 S 282 D $93.679(3) 39,226 D
Common Stock 08/12/2025 S 912 D $94.462(4) 38,314 D
Common Stock 08/12/2025 S 3,108 D $95.464(5) 35,206 D
Common Stock 08/12/2025 S 206 D $96.205(6) 35,000 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:
1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.66 to $91.85. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.22 to $92.99. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $93.10 to $93.99. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $94.00 to $94.98. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
5. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.00 to $95.99. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
6. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $96.00 to $96.62. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
/s/ Frank P Simpkins 08/14/2025
** 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.

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did PSIX director Frank P. Simpkins report?

He reported six sales on 08/12/2025 totaling 5,000 shares of Power Solutions International common stock.

At what prices were the PSIX shares sold according to the Form 4?

The Form 4 lists weighted-average prices per tranche ranging from $91.741 to $96.205, with footnote ranges for each tranche.

How many PSIX shares does Frank P. Simpkins beneficially own after the reported sales?

The filing reports beneficial ownership of 35,000 shares following the transactions.

Were any derivative securities reported in this PSIX Form 4 filing?

No. Table II for derivative securities contains no reported transactions.

Was this Form 4 filed by one reporting person or jointly?

The form indicates it was filed by one reporting person and identifies the filer as a director of the issuer.