What SEC filings does Power Solutions International, Inc. submit to the SEC?

Power Solutions International, Inc. (PSIX) submits several types of SEC filings including Form 4 (insider transactions), Form 144 (proposed insider sales), 8-K reports (material events such as earnings releases, acquisitions, leadership changes), and periodic reports — the 10-Q (quarterly) and 10-K (annual). All filings are publicly available through SEC EDGAR.

What does a Form 4 filing tell me about PSIX?

A Form 4 for PSIX discloses a transaction by a company insider — typically a director, officer, or 10%+ shareholder. It shows the source-reported date, number of shares, price, and updated ownership. These facts do not establish motive or predict future returns.

How do I interpret an 8-K filing from Power Solutions International, Inc.?

An 8-K signals a material event requiring prompt disclosure. Common triggers include earnings pre-announcements, acquisitions, leadership appointments or departures, credit changes, or regulatory actions. Read the item codes inside the filing to understand exactly what was disclosed before drawing conclusions.

What is the difference between a 10-K and 10-Q for PSIX?

The 10-K is Power Solutions International, Inc.'s annual report with fully audited financial statements, comprehensive MD&A, and complete risk factor disclosures — filed 60–90 days after fiscal year-end. The 10-Q is a lighter quarterly report with unaudited financials filed for the first three quarters. Together they provide a continuous financial picture of the company.

Where can I see all PSIX SEC filings directly on EDGAR?

You can view all historical Power Solutions International, Inc. filings on the SEC EDGAR company page for PSIX. Each filing card on this page links directly to the original SEC document.

How often does Power Solutions International, Inc. file with the SEC?

Power Solutions International, Inc. files one 10-K per year and up to three 10-Qs per year. Form 4 insider transactions must be reported within two business days of each trade, so the frequency depends on how often insiders are buying or selling PSIX shares. 8-K filings occur whenever a material event happens — which can be several times per quarter for an active company.

PSIX SEC Filing News — Power Solutions International, Inc.

Latest SEC filings for Power Solutions International, Inc. (PSIX) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-09-30.

Power Solutions International, Inc. designs, engineers, manufactures, markets, and sells engines and power systems in the United States, the rest of North America, the Pacific Rim, Europe, and internationally. The company offers basic engine blocks integrated with fuel system parts, as well as completely packaged power systems, that include combinations of front accessory drives, cooling systems, electronic systems, air intake systems, fuel systems, housings, power takeoff systems, exhaust syste…

Sector: Industrials Industry: Specialty Industrial Machinery Market Cap: $1.1B CIK: 1137091

Total Filings

Bullish Classifications

Bearish Classifications

Insider Transactions

Material Events (8-K)

Periodic Reports

What you're looking at: Each item below is parsed from an actual SEC filing submitted by Power Solutions International, Inc.. Form 4 = confirmed insider transaction · Form 144 = proposed sale notice · 8-K = material event (earnings, M&A, leadership change, etc.) · 10-Q / 10-K = quarterly / annual report.

PSIX Filing Activity Snapshot 2025-12-12 — 2026-09-30

Insider Transactions (Form 4)

0 buys vs 0 sells

Insider buying and selling activity is balanced in this period.

Insider Transactions 7 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 7 filings in this group are Form 4s for Power Solutions International, Inc.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 7 insider filings shown, the breakdown is 6 compensation award and 1 option exercise. None of the classified filings involved a discretionary open-market trade, so this period says nothing about what insiders think of the price.

What each transaction type means

Compensation award ×6: Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Option exercise ×1: The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Form 4 Compensation award Tax / Compensation Filing 2026-08-17

PSIX insider Form 4 filed for equity award, exercise, or tax withholding

Hu Nan (Richard) (Chief Executive Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award derivative · Phantom Stock	5,867	—	—

Filing: Form 4 (Insider Transaction) Insider: Hu Nan (Richard) (Chief Executive Officer)

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-04-17

PSIX insider Form 4 filed for equity award, exercise, or tax withholding

Li Xun (CFO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award derivative · Phantom Stock	1,665	—	—

Filing: Form 4 (Insider Transaction) Insider: Li Xun (CFO)

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-04-17

PSIX insider Form 4 filed for equity award, exercise, or tax withholding

Du Zhaoying (GC and Corp Secy) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award derivative · Phantom Stock	1,492	—	—

Filing: Form 4 (Insider Transaction) Insider: Du Zhaoying (GC and Corp Secy)

View on SEC EDGAR → Open Filing Document →

Form 4 Option exercise Tax / Compensation Filing 2026-02-17

PSIX insider Form 4 filed for equity award, exercise, or tax withholding

Li Xun (CFO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`M`	Option exercise	7,500	$2.00	$15.0K
`F`	Tax withholding on vested shares	3,429	$92.72	$317.9K
`M`	Option exercise derivative · Stock Appreciation Rights	7,500	—	—

Filing: Form 4 (Insider Transaction) Insider: Li Xun (CFO) Shares: 10,929

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2025-12-12

PSIX insider Form 4 filed for equity award, exercise, or tax withholding

He Hong (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	5,000	—	—

Filing: Form 4 (Insider Transaction) Insider: He Hong (Director) Shares: 5,000

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2025-12-12

PSIX insider Form 4 filed for equity award, exercise, or tax withholding

SIMPKINS FRANK P (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	5,000	—	—

Filing: Form 4 (Insider Transaction) Insider: SIMPKINS FRANK P (Director) Shares: 5,000

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2025-12-12

PSIX insider Form 4 filed for equity award, exercise, or tax withholding

Du Zhaoying (GC and Corp Secy) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award derivative · Stock Appreciation Right	700	—	—

Filing: Form 4 (Insider Transaction) Insider: Du Zhaoying (GC and Corp Secy)

View on SEC EDGAR → Open Filing Document →

Material Events 9 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 9 in this period for Power Solutions International, Inc. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K Material Company Update 2026-09-30