Power Solutions International, Inc. (PSIX) Insider Trading

Last 12 months

No open-market buying or selling by insiders.

The last open-market buy by an executive or director was in Aug 2025.

Net open-market

0 buys · 0 sales

Under a 10b5-1 plan

—

no sales

Insiders who bought / sold

0 / 0

executives and directors

Last open-market buy

Aug 2025

Aug 25, 2025

Get an email when PSIX's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Sep 11, 2025	Weichai Power Co., Ltd. Large holder	SoldNo plan 4 parts	79,839	$93.46 average	$7.46M	0.7%	Form 4
Sep 10, 2025 – Sep 11, 2025	Hong He Director	SoldNo plan 2 parts	2,500	$94.40 average	$236k	12%	Form 4
Sep 10, 2025	Weichai Power Co., Ltd. Large holder	SoldNo plan 6 parts	36,554	$92.42 average	$3.38M	0.3%	Form 4
Sep 9, 2025	Constantine Xykis CEO	SoldNo plan	7,854	$91.31	$717k	100%	Form 4
Sep 9, 2025	Hong He Director	SoldNo plan 2 parts	4,000	$91.44 average	$366k	16%	Form 4
Sep 8, 2025	Hong He Director	SoldNo plan	1,000	$89.00	$89k	3.8%	Form 4
Aug 26, 2025	Shandong Heavy Industry Group Co., Ltd. Large holder	SoldNo plan 10 parts	94,047	$83.28 average	$7.83M	0.9%	Form 4
Aug 25, 2025	Weichai Power Co., Ltd. Large holder	SoldNo plan 6 parts	51,426	$91.00 average	$4.68M	0.5%	Form 4
Aug 25, 2025	Frank P Simpkins Director	SoldNo plan	10,000	$91.64	$916k	29%	Form 4
Aug 25, 2025	Xun Li CFO	Bought	300	$92.82	$28k	136%	Form 4
Aug 25, 2025	Xun Li CFO	SoldNo plan 4 parts	8,000	$92.36 average	$739k	94%	Form 4
Aug 22, 2025	Weichai America Corp. Large holder	SoldNo plan 11 parts	87,210	$88.28 average	$7.7M	0.8%	Form 4
Aug 21, 2025	Weichai America Corp. Large holder	SoldNo plan 4 parts	42,314	$82.27 average	$3.48M	0.4%	Form 4
Aug 20, 2025	Weichai Power Co., Ltd. Large holder	SoldNo plan 2 parts	15,802	$80.50 average	$1.27M	0.1%	Form 4
Aug 19, 2025	Weichai America Corp. Large holder	SoldNo plan 5 parts	79,670	$81.08 average	$6.46M	0.7%	Form 4
Aug 18, 2025	Weichai Power Co., Ltd. Large holder	SoldNo plan 10 parts	125,220	$85.01 average	$10.6M	1.1%	Form 4
Aug 15, 2025	Weichai America Corp. Large holder	SoldNo plan 7 parts	116,137	$83.16 average	$9.66M	1.0%	Form 4
Aug 14, 2025	Weichai America Corp. Large holder	SoldNo plan 10 parts	135,846	$84.97 average	$11.5M	1.2%	Form 4
Aug 13, 2025	Weichai Power Co., Ltd. Large holder	SoldNo plan 11 parts	162,113	$89.83 average	$14.6M	1.4%	Form 4
Aug 13, 2025	Hong He Director	SoldNo plan	2,500	$90.03	$225k	8.7%	Form 4
Aug 12, 2025	Shandong Heavy Industry Group Co., Ltd. Large holder	SoldNo plan 11 parts	123,822	$93.80 average	$11.6M	1.1%	Form 4
Aug 12, 2025	Constantine Xykis CEO	SoldNo plan 2 parts	26,005	$95.85 average	$2.49M	77%	Form 4
Aug 12, 2025	Frank P Simpkins Director	SoldNo plan 6 parts	5,000	$94.90 average	$475k	13%	Form 4
Apr 11, 2025	Gary S Winemaster Large holder	SoldNo plan	2,000	$23.27	$47k	<0.1%	Form 4
Jan 21, 2025 – Jan 22, 2025	Gary S Winemaster Large holder	SoldNo plan 3 parts	52,821	$39.43 average	$2.08M	1.8%	Form 4
Jan 14, 2025	Gary S Winemaster Large holder	SoldNo plan	15,181	$37.05	$562k	0.5%	Form 4
Dec 23, 2024 – Dec 24, 2024	Gary S Winemaster Large holder	SoldNo plan 3 parts	56,729	$28.47 average	$1.61M	1.8%	Form 4
Dec 2, 2024	Gary S Winemaster Large holder	SoldNo plan	25,000	$31.62	$791k	0.8%	Form 4
Nov 5, 2024	Gary S Winemaster Large holder	SoldNo plan	4,296	$22.09	$95k	0.1%	Form 4

Sep 11, 2025No plan
Weichai Power Co., Ltd.
Large holder · sold 79,839 at avg $93.46
$7.46M
0.7% of stake
Sep 10, 2025 – Sep 11, 2025No plan
Hong He
Director · sold 2,500 at avg $94.40
$236k
12% of stake
Sep 10, 2025No plan
Weichai Power Co., Ltd.
Large holder · sold 36,554 at avg $92.42
$3.38M
0.3% of stake
Sep 9, 2025No plan
Constantine Xykis
CEO · sold 7,854 at $91.31
$717k
100% of stake
Sep 9, 2025No plan
Hong He
Director · sold 4,000 at avg $91.44
$366k
16% of stake
Sep 8, 2025No plan
Hong He
Director · sold 1,000 at $89.00
$89k
3.8% of stake
Aug 26, 2025No plan
Shandong Heavy Industry Group Co., Ltd.
Large holder · sold 94,047 at avg $83.28
$7.83M
0.9% of stake
Aug 25, 2025No plan
Weichai Power Co., Ltd.
Large holder · sold 51,426 at avg $91.00
$4.68M
0.5% of stake
Aug 25, 2025No plan
Frank P Simpkins
Director · sold 10,000 at $91.64
$916k
29% of stake
Aug 25, 2025
Xun Li
CFO · bought 300 at $92.82
$28k
136% of stake
Aug 25, 2025No plan
Xun Li
CFO · sold 8,000 at avg $92.36
$739k
94% of stake
Aug 22, 2025No plan
Weichai America Corp.
Large holder · sold 87,210 at avg $88.28
$7.7M
0.8% of stake
Aug 21, 2025No plan
Weichai America Corp.
Large holder · sold 42,314 at avg $82.27
$3.48M
0.4% of stake
Aug 20, 2025No plan
Weichai Power Co., Ltd.
Large holder · sold 15,802 at avg $80.50
$1.27M
0.1% of stake
Aug 19, 2025No plan
Weichai America Corp.
Large holder · sold 79,670 at avg $81.08
$6.46M
0.7% of stake
Aug 18, 2025No plan
Weichai Power Co., Ltd.
Large holder · sold 125,220 at avg $85.01
$10.6M
1.1% of stake
Aug 15, 2025No plan
Weichai America Corp.
Large holder · sold 116,137 at avg $83.16
$9.66M
1.0% of stake
Aug 14, 2025No plan
Weichai America Corp.
Large holder · sold 135,846 at avg $84.97
$11.5M
1.2% of stake
Aug 13, 2025No plan
Weichai Power Co., Ltd.
Large holder · sold 162,113 at avg $89.83
$14.6M
1.4% of stake
Aug 13, 2025No plan
Hong He
Director · sold 2,500 at $90.03
$225k
8.7% of stake
Aug 12, 2025No plan
Shandong Heavy Industry Group Co., Ltd.
Large holder · sold 123,822 at avg $93.80
$11.6M
1.1% of stake
Aug 12, 2025No plan
Constantine Xykis
CEO · sold 26,005 at avg $95.85
$2.49M
77% of stake
Aug 12, 2025No plan
Frank P Simpkins
Director · sold 5,000 at avg $94.90
$475k
13% of stake
Apr 11, 2025No plan
Gary S Winemaster
Large holder · sold 2,000 at $23.27
$47k
<0.1% of stake
Jan 21, 2025 – Jan 22, 2025No plan
Gary S Winemaster
Large holder · sold 52,821 at avg $39.43
$2.08M
1.8% of stake
Jan 14, 2025No plan
Gary S Winemaster
Large holder · sold 15,181 at $37.05
$562k
0.5% of stake
Dec 23, 2024 – Dec 24, 2024No plan
Gary S Winemaster
Large holder · sold 56,729 at avg $28.47
$1.61M
1.8% of stake
Dec 2, 2024No plan
Gary S Winemaster
Large holder · sold 25,000 at $31.62
$791k
0.8% of stake
Nov 5, 2024No plan
Gary S Winemaster
Large holder · sold 4,296 at $22.09
$95k
0.1% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch PSIX, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Spot a number that looks wrong? Check it in PSIX's SEC filings or

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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