Power Solutions International, Inc.

PSIXNASDAQIndustrials● Active

$39.85

+$2.24(+5.96%)

Market Cap$918560433

P/E Ratio—

52W High$121.78

52W Low$35.77

Avg Volume817K

Open$38.65

Beta1.98

Overview

Power Solutions International, Inc. (PSIX) Insider Trading

Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.

SEC EDGAR · FMP · PSIX · as of Jun 8, 2026

Activity summary

Buy transactions

P-Purchase only

Sell transactions

122

12 Months

Buy/Sell ratio

0.01

Buy/Sell (by trades)

Overall sentiment

BEARISH

↑ Buy 1%Active transactions only · RSU vesting excluded99% Sell ↓

Power Solutions International, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only

As of Jun 8, 2026

PSIX insider buying and selling by quarter

PSIX insider selling · PSIX insider buying stocks · quarterly insider activity

Total insider buying (incl. awards)Total insider selling

1.3M634K0

2024 Q1

2024 Q2

2024 Q3

2024 Q4

2025 Q1

2025 Q2

2025 Q3

2025 Q4

Mobile shows last 4Q · Desktop shows full 8Q

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters

As of Jun 8, 2026

Active insiders

Most active in past 12 months · PSIX ceo insider trading

Showing all insiders · Click a card to filter the transactions table below

▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API

Recent insider transactions

PSIX executive sell shares · PSIX board member insider trading · PSIX insider trading SEC filing

Showing 92 most recent · Common Stock · Form 4 only

Scroll horizontally to see all columns

Date	Insider	Type	Shares	Price	Value	After trans.	Filing
Feb 12, 2026	Li Xun CFO	Option	7,500	$2.00	$15K	8,021	Form 4
Feb 12, 2026	Li Xun CFO	Other	3,429	$92.72	$318K	4,592	Form 4
Dec 11, 2025	He Hong Director	Award	5,000	—	—	23,750	Form 4
Dec 11, 2025	SIMPKINS FRANK P Director	Award	5,000	—	—	30,000	Form 4
Dec 11, 2025	Shea Courtney C. Director	Award	5,000	—	—	5,000	Form 4
Sep 11, 2025	Weichai America Corp. 10 percent owner	Sale	6,738	$91.72	$618K	10,672,860	Form 4
Sep 11, 2025	Weichai America Corp. 10 percent owner	Sale	19,351	$92.46	$1.79M⚡	10,653,509	Form 4
Sep 11, 2025	Weichai America Corp. 10 percent owner	Sale	23,231	$93.64	$2.18M⚡	10,630,278	Form 4
Sep 11, 2025	Weichai America Corp. 10 percent owner	Sale	30,519	$94.33	$2.88M⚡	10,599,759	Form 4
Sep 10, 2025	He Hong Director	Sale	1,000	$95.00	$95K	20,250	Form 4
Sep 11, 2025	He Hong Director	Sale	1,500	$94.00	$141K	18,750	Form 4
Sep 10, 2025	Weichai America Corp. 10 percent owner	Sale	6,308	$90.28	$570K	10,709,844	Form 4
Sep 10, 2025	Weichai America Corp. 10 percent owner	Sale	5,018	$91.44	$459K	10,704,826	Form 4
Sep 10, 2025	Weichai America Corp. 10 percent owner	Sale	14,557	$92.34	$1.34M⚡	10,690,269	Form 4
Sep 10, 2025	Weichai America Corp. 10 percent owner	Sale	2,515	$93.50	$235K	10,687,754	Form 4
Sep 10, 2025	Weichai America Corp. 10 percent owner	Sale	7,585	$94.45	$716K	10,680,169	Form 4
Sep 10, 2025	Weichai America Corp. 10 percent owner	Sale	571	$95.20	$54K	10,679,598	Form 4
Sep 9, 2025	Xykis Constantine CEO	Sale	7,854	$91.31	$717K	0	Form 4
Sep 9, 2025	He Hong Director	Sale	1,500	$90.00	$135K	23,750	Form 4
Sep 9, 2025	He Hong Director	Sale	2,500	$92.31	$231K	21,250	Form 4
Sep 8, 2025	He Hong Director	Sale	1,000	$89.00	$89K	25,250	Form 4
Aug 26, 2025	Weichai America Corp. 10 percent owner	Sale	13,548	$80.66	$1.09M⚡	10,796,651	Form 4
Aug 26, 2025	Weichai America Corp. 10 percent owner	Sale	21,925	$81.57	$1.79M⚡	10,774,726	Form 4
Aug 26, 2025	Weichai America Corp. 10 percent owner	Sale	17,075	$82.49	$1.41M⚡	10,757,651	Form 4
Aug 26, 2025	Weichai America Corp. 10 percent owner	Sale	11,923	$83.45	$995K	10,745,728	Form 4

Li Xun

CFO

Option

Date

Feb 12

7,500

Price

$2.00

Value

$15K

View Form 4 on SEC.gov

Li Xun

CFO

Other

Date

Feb 12

3,429

Price

$92.72

Value

$318K

View Form 4 on SEC.gov

He Hong

Director

Award

Date

Dec 11

5,000

Price

—

Value

—

View Form 4 on SEC.gov

SIMPKINS FRANK P

Director

Award

Date

Dec 11

5,000

Price

—

Value

—

View Form 4 on SEC.gov

Shea Courtney C.

Director

Award

Date

Dec 11

5,000

Price

—

Value

—

View Form 4 on SEC.gov

Weichai America Corp.

10 percent owner

Sale

Date

Sep 11

6,738

Price

$91.72

Value

$618K

View Form 4 on SEC.gov

Weichai America Corp.

10 percent owner

Sale

Date

Sep 11

19,351

Price

$92.46

Value

$1.79M ⚡

View Form 4 on SEC.gov

Weichai America Corp.

10 percent owner

Sale

Date

Sep 11

23,231

Price

$93.64

Value

$2.18M ⚡

View Form 4 on SEC.gov

Weichai America Corp.

10 percent owner

Sale

Date

Sep 11

30,519

Price

$94.33

Value

$2.88M ⚡

View Form 4 on SEC.gov

He Hong

Director

Sale

Date

Sep 10

1,000

Price

$95.00

Value

$95K

View Form 4 on SEC.gov

He Hong

Director

Sale

Date

Sep 11

1,500

Price

$94.00

Value

$141K

View Form 4 on SEC.gov

Weichai America Corp.

10 percent owner

Sale

Date

Sep 10

6,308

Price

$90.28

Value

$570K

View Form 4 on SEC.gov

Weichai America Corp.

10 percent owner

Sale

Date

Sep 10

5,018

Price

$91.44

Value

$459K

View Form 4 on SEC.gov

Weichai America Corp.

10 percent owner

Sale

Date

Sep 10

14,557

Price

$92.34

Value

$1.34M ⚡

View Form 4 on SEC.gov

Weichai America Corp.

10 percent owner

Sale

Date

Sep 10

2,515

Price

$93.50

Value

$235K

View Form 4 on SEC.gov

Weichai America Corp.

10 percent owner

Sale

Date

Sep 10

7,585

Price

$94.45

Value

$716K

View Form 4 on SEC.gov

Weichai America Corp.

10 percent owner

Sale

Date

Sep 10

571

Price

$95.20

Value

$54K

View Form 4 on SEC.gov

Xykis Constantine

CEO

Sale

Date

Sep 9

7,854

Price

$91.31

Value

$717K

View Form 4 on SEC.gov

He Hong

Director

Sale

Date

Sep 9

1,500

Price

$90.00

Value

$135K

View Form 4 on SEC.gov

He Hong

Director

Sale

Date

Sep 9

2,500

Price

$92.31

Value

$231K

View Form 4 on SEC.gov

He Hong

Director

Sale

Date

Sep 8

1,000

Price

$89.00

Value

$89K

View Form 4 on SEC.gov

Weichai America Corp.

10 percent owner

Sale

Date

Aug 26

13,548

Price

$80.66

Value

$1.09M ⚡

View Form 4 on SEC.gov

Weichai America Corp.

10 percent owner

Sale

Date

Aug 26

21,925

Price

$81.57

Value

$1.79M ⚡

View Form 4 on SEC.gov

Weichai America Corp.

10 percent owner

Sale

Date

Aug 26

17,075

Price

$82.49

Value

$1.41M ⚡

View Form 4 on SEC.gov

Weichai America Corp.

10 percent owner

Sale

Date

Aug 26

11,923

Price

$83.45

Value

$995K

View Form 4 on SEC.gov

⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar

1 / 4

▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —

About PSIX insider trading

PSIX insider trades

Power Solutions International, Inc. (PSIX) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Weichai America Corp. (10 percent owner), Li Xun (CFO), He Hong (Director). Over the past 12 months, 5 insiders have filed transactions with the SEC. PSIX insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.

For Power Solutions International, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →

Buy/Sell signal logic

acquisitionOrDisposition field:

A = Acquisition (buy) · D = Disposition (sell)

RSU vesting (M-Exempt) excluded from sentiment

Form 4SEC filing required within 2 business days of any insider transaction

10b5-1Pre-scheduled trading plan that allows insiders to sell on autopilot

Open MktDirect purchase or sale on the open market (excludes awards, options)

Ownership SEC filings Financial statements Price history Forecast & ratings Earnings

Frequently asked questions

PSIX insider trading · 5 questions

The insiders of Power Solutions International, Inc. (PSIX) include executives and directors such as Weichai America Corp. (10 percent owner), Li Xun (CFO), He Hong (Director), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.

PSIX board member insider tradingwho are PSIX insidersPSIX insider rosterPower Solutions International, Inc. executives insider activity

▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026