StockData
PSIXNasdaqEngines & TurbinesFiscal year ends December 31

POWER SOLUTIONS INTERNATIONAL, INC.

Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 6, 2026
$49.03+2.96 (+6.43%)

Close on Oct 19, 2026

Market cap
$1.13B
P/E (TTM)
16.6
Dividend yield
–

Ownership

Institutional holdings as of Jun 30, 2026, from 13F filings

Held by institutions
36.4%
8M of 23M shares
Institutional holders
158
26 new, 68 sold out
Net institutional buying
2M
In Q2 2026
Insider trades, 12 months
0 buys · 0 sales
Open-market trades only

Shares held by institutions

Holders of more than 5%

Latest Schedule 13D (active) or 13G (passive) filed by each holder

HolderShares% of classFilingAs of
Steven A. Cohen1,497,1556.50%13G (passive) amendmentJun 30, 2026
Gary S. Winemaster1,455,2596.30%13D (active) amendmentSep 18, 2025
Point72 Asset Management, L.P.1,155,7645.00%13G (passive)May 21, 2026
Neil Gagnon1,141,2545.00%13G (passive) amendmentFeb 5, 2025
Weichai America Corp.10,716,15246.50%13D (active) amendmentAug 26, 2025

Top institutional holders

13F holdings as of Jun 30, 2026

HolderShares% of PSIXValueChange% of portfolio
Point72 Asset Management, L.P.1,497,1556.49%$58.22M+1,491,8050.06%
BlackRock, Inc.818,9683.55%$31.85M+103,4120.00%
Newtyn Management, LLC600,8902.61%$23.37MNew2.92%
Vanguard Capital Management LLC340,6341.48%$13.25M−3400.00%
Yunqi Capital Ltd339,0001.47%$13.18MNew10.55%
Barclays PLC311,1101.35%$12.10M+72,0640.00%
Dimensional Fund Advisors LP296,8121.29%$11.54M+13,5710.00%
OLP CAPITAL MANAGEMENT Ltd283,9401.23%$11.04MNew2.76%
Busey Trust CO220,0000.95%$8.56M–0.21%
Geode Capital Management, LLC216,2350.94%$8.41M+19,9380.00%
Millennium Management LLC206,9420.90%$8.05M+109,0620.00%
SG Americas Securities, LLC194,9300.85%$7.58K−21,4650.00%
State Street Corp184,8550.80%$7.19M+14,1080.00%
Goldman Sachs Group Inc147,3330.64%$5.73M+103,0270.00%
First Trust Advisors LP146,7500.64%$5.71M+60,6270.00%
Yiheng Capital Management, L.P.133,5000.58%$5.19MNew1.78%
Meros Investment Management, LP129,2660.56%$5.03M+90,0001.60%
Morgan Stanley113,0030.49%$4.39M−54,0340.00%
Two Sigma Investments, LP108,9610.47%$4.24M+62,5900.00%
Hel Ved Capital Management Ltd100,8760.44%$3.92M–0.29%

Institutional buying and selling by quarter

Positions opened, added to, reduced and closed by 13F filers

QuarterHoldersShares held% of sharesNew / addedReduced / closedShares boughtShares sold
Q2 20261588M36.4%26 / 6248 / 684M3M
Q1 20262037M31.6%56 / 6451 / 443M2M
Q4 20251947M29.7%54 / 9330 / 593M1M
Q3 20252025M23.7%90 / 6532 / 133M1M
Q2 20251263M15.2%73 / 3317 / 132M1M
Q1 2025663M13.7%40 / 158 / 52M1M
Q4 2024312M10.0%27 / 03 / 01M1M
Q3 202442M9.9%0 / 02 / 00M0M
Q2 202443M11.8%0 / 11 / 00M0M
Q1 202443M11.6%0 / 20 / 00M0M
Q4 202343M11.4%0 / 01 / 00M0M
Q3 202343M11.5%0 / 01 / 00M0M

Top mutual fund and ETF holders

Latest monthly portfolio reports (Form N-PORT)

FundShares% of PSIXValue% of fundAs of
Vanguard Total Stock Market Index Fund256,7491.11%$9.98M0.00%Jun 30, 2026
iShares Russell 2000 ETF227,3650.99%$8.84M0.01%Jun 30, 2026
Fidelity Small Cap Index Fund94,6110.41%$2.61M0.01%Jul 31, 2026
Small Cap Core Portfolio79,9000.35%$3.11M0.36%Jun 30, 2026
iShares Russell 2000 Growth ETF76,5610.33%$2.98M0.02%Jun 30, 2026
Vanguard Extended Market Index Fund75,5980.33%$2.94M0.00%Jun 30, 2026
Dimensional U.S. Small Cap ETF49,7030.22%$1.37M0.01%Jul 31, 2026
Defiance AI & Power Infrastructure ETF47,6480.21%$1.99M0.26%May 31, 2026
First Trust Small Cap Growth AlphaDEX Fund44,2760.19%$1.22M0.09%Jul 31, 2026
Vanguard Russell 2000 Index Fund43,8280.19%$1.83M0.01%May 31, 2026
Victory Small Cap Stock Fund42,9790.19%$1.19M0.12%Jul 31, 2026
Fidelity Extended Market Index Fund34,8060.15%$1.45M0.00%May 31, 2026
Schwab U.S. Small-Cap ETF31,9490.14%$1.33M0.01%May 31, 2026
iShares Micro-Cap ETF28,7600.12%$1.12M0.07%Jun 30, 2026
Dimensional U.S. Core Equity 2 ETF24,3260.11%$671.64K0.00%Jul 31, 2026

Officers, directors and major owners

People who filed Forms 3, 4 or 5 in the last two years

NameRoleShares owned% of sharesLatest filing
Nan (Richard) HuChief Executive Officer––Aug 17, 2026
Zhaoying DuGC and Corp Secy––Apr 17, 2026
Xun LiCFO4,5920.02%Apr 17, 2026
Constantine XykisCEO26,8390.12%Sep 11, 2025
Zhao JinDirector––Jan 6, 2026
Xuesen YangDirector––Jan 6, 2026
Frank P. SimpkinsDirector30,0000.13%Dec 12, 2025
Hong HeDirector23,7500.10%Dec 12, 2025
Courtney C. SheaDirector5,0000.02%Dec 12, 2025
Kenneth W. LandiniDirector59,0000.26%Dec 16, 2024
America Corp. Weichai10% owner10,941,80747.44%Sep 15, 2025
Weichai Power Co., Ltd.10% owner10,599,75945.96%Sep 15, 2025
Shandong Heavy Industry Group Co., Ltd.10% owner10,733,68646.54%Sep 15, 2025
Gary S. Winemaster–2,184,7909.47%Apr 23, 2025

Insider trades

Common stock transactions reported on Form 4, newest first

InsiderDateTransactionSharesPriceValueShares after
Xun Li
CFO
Feb 12, 2026Tax withholding−3,429$92.72$317.94K4,592
Xun Li
CFO
Feb 12, 2026Option exercise+7,500$2.00$15.00K8,021
Courtney C. Shea
Director
Dec 11, 2025Award+5,000––5,000
Frank P. Simpkins
Director
Dec 11, 2025Award+5,000––30,000
Hong He
Director
Dec 11, 2025Award+5,000––23,750
Weichai Power Co., Ltd.
10% owner
Sep 11, 2025Sale−30,519$94.33$2.88M10,599,759
Weichai Power Co., Ltd.
10% owner
Sep 11, 2025Sale−6,738$91.72$618.01K10,672,860
Weichai Power Co., Ltd.
10% owner
Sep 11, 2025Sale−19,351$92.46$1.79M10,653,509
Weichai Power Co., Ltd.
10% owner
Sep 11, 2025Sale−23,231$93.64$2.18M10,630,278
Hong He
Director
Sep 11, 2025Sale−1,500$94.00$141.00K18,750
Weichai Power Co., Ltd.
10% owner
Sep 10, 2025Sale−5,018$91.44$458.85K10,704,826
Weichai Power Co., Ltd.
10% owner
Sep 10, 2025Sale−6,308$90.28$569.49K10,709,844
Weichai Power Co., Ltd.
10% owner
Sep 10, 2025Sale−14,557$92.34$1.34M10,690,269
Weichai Power Co., Ltd.
10% owner
Sep 10, 2025Sale−2,515$93.50$235.15K10,687,754
Weichai Power Co., Ltd.
10% owner
Sep 10, 2025Sale−7,585$94.45$716.40K10,680,169
Weichai Power Co., Ltd.
10% owner
Sep 10, 2025Sale−571$95.20$54.36K10,679,598
Hong He
Director
Sep 10, 2025Sale−1,000$95.00$95.00K20,250
Constantine Xykis
CEO
Sep 9, 2025Sale−7,854$91.31$717.15K0
Hong He
Director
Sep 9, 2025Sale−2,500$92.31$230.78K21,250
Hong He
Director
Sep 9, 2025Sale−1,500$90.00$135.00K23,750
Hong He
Director
Sep 8, 2025Sale−1,000$89.00$89.00K25,250
Shandong Heavy Industry Group Co., Ltd.
10% owner
Aug 26, 2025Sale−2,093$85.81$179.60K10,733,686
Shandong Heavy Industry Group Co., Ltd.
10% owner
Aug 26, 2025Sale−13,548$80.66$1.09M10,796,651
Shandong Heavy Industry Group Co., Ltd.
10% owner
Aug 26, 2025Sale−21,925$81.57$1.79M10,774,726
Shandong Heavy Industry Group Co., Ltd.
10% owner
Aug 26, 2025Sale−178$89.00$15.84K10,716,152
Shandong Heavy Industry Group Co., Ltd.
10% owner
Aug 26, 2025Sale−3,385$88.35$299.06K10,716,300
Shandong Heavy Industry Group Co., Ltd.
10% owner
Aug 26, 2025Sale−2,676$87.52$234.20K10,719,715
Shandong Heavy Industry Group Co., Ltd.
10% owner
Aug 26, 2025Sale−11,295$86.74$979.73K10,722,391
Shandong Heavy Industry Group Co., Ltd.
10% owner
Aug 26, 2025Sale−9,949$84.35$839.20K10,735,779
Shandong Heavy Industry Group Co., Ltd.
10% owner
Aug 26, 2025Sale−11,923$83.46$995.09K10,745,728
Shandong Heavy Industry Group Co., Ltd.
10% owner
Aug 26, 2025Sale−17,075$82.49$1.41M10,757,651
Xun Li
CFO
Aug 25, 2025Sale−3,600$91.60$329.76K4,621
Xun Li
CFO
Aug 25, 2025Sale−600$93.20$55.92K421
Xun Li
CFO
Aug 25, 2025Sale−200$93.30$18.66K221
Xun Li
CFO
Aug 25, 2025Buy+300$92.82$27.85K521
Xun Li
CFO
Aug 25, 2025Sale−3,600$92.93$334.55K1,021
Weichai Power Co., Ltd.
10% owner
Aug 25, 2025Sale−12,283$91.63$1.13M10,825,289
Weichai Power Co., Ltd.
10% owner
Aug 25, 2025Sale−8,102$89.48$724.97K10,846,575
Weichai Power Co., Ltd.
10% owner
Aug 25, 2025Sale−6,948$88.78$616.84K10,854,677
Weichai Power Co., Ltd.
10% owner
Aug 25, 2025Sale−9,003$90.38$813.69K10,837,572
Weichai Power Co., Ltd.
10% owner
Aug 25, 2025Sale−3,695$93.18$344.30K10,810,199
Weichai Power Co., Ltd.
10% owner
Aug 25, 2025Sale−11,395$92.56$1.05M10,813,894
Frank P. Simpkins
Director
Aug 25, 2025Sale−10,000$91.64$916.40K25,000
America Corp. Weichai
10% owner
Aug 22, 2025Sale−3,720$82.45$306.71K10,941,807
America Corp. Weichai
10% owner
Aug 22, 2025Sale−3,308$81.57$269.83K10,945,527
America Corp. Weichai
10% owner
Aug 22, 2025Sale−3,921$83.60$327.80K10,937,886
America Corp. Weichai
10% owner
Aug 22, 2025Sale−1,665$84.74$141.09K10,936,221
America Corp. Weichai
10% owner
Aug 22, 2025Sale−4,521$85.40$386.09K10,931,700
America Corp. Weichai
10% owner
Aug 22, 2025Sale−3,979$86.34$343.55K10,927,721
America Corp. Weichai
10% owner
Aug 22, 2025Sale−13,323$91.20$1.22M10,861,625
America Corp. Weichai
10% owner
Aug 22, 2025Sale−19,228$90.52$1.74M10,874,948
America Corp. Weichai
10% owner
Aug 22, 2025Sale−11,263$89.52$1.01M10,894,176
America Corp. Weichai
10% owner
Aug 22, 2025Sale−9,988$88.46$883.54K10,905,439
America Corp. Weichai
10% owner
Aug 22, 2025Sale−12,294$87.57$1.08M10,915,427
America Corp. Weichai
10% owner
Aug 21, 2025Sale−20,729$82.46$1.71M10,956,261
America Corp. Weichai
10% owner
Aug 21, 2025Sale−2,647$80.41$212.85K10,988,502
America Corp. Weichai
10% owner
Aug 21, 2025Sale−11,512$81.70$940.53K10,976,990
America Corp. Weichai
10% owner
Aug 21, 2025Sale−7,426$83.26$618.29K10,948,835
Weichai Power Co., Ltd.
10% owner
Aug 20, 2025Sale−5$81.00$40510,991,149
Weichai Power Co., Ltd.
10% owner
Aug 20, 2025Sale−15,797$80.50$1.27M10,991,154

Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.

Planned insider sales

Notices of proposed sale filed on Form 144 before shares are sold

SellerFiledSharesMarket valuePlanned saleAcquired through
Kenneth W. Landini
Director
Sep 29, 20256,000$600.00KSep 18, 2025Preferred Stock Conversion
Kenneth W. Landini
Director
Sep 29, 20253,500$371.00KSep 29, 2025Preferred Stock Conversion
Kenneth W. Landini
Director
Sep 23, 20256,000$600.00KSep 18, 2025Preferred Stock Conversion
He Hong
Director
Sep 11, 20251,500$141.00KSep 11, 2025Restricted stock vesting under a registered plan
He Hong
Director
Sep 10, 20251,000$95.00KSep 10, 2025Restricted stock vesting under a registered plan
He Hong
Director
Sep 9, 20254,000$365.77KSep 9, 2025Restricted stock vesting under a registered plan
Constantine Xykis
Officer
Sep 9, 20257,854$662.80KSep 9, 2025Compensatory Grant from Issuer
He Hong
Director
Sep 8, 20251,000$89.00KSep 8, 2025Restricted stock vesting under a registered plan
Kenneth W. Landini
Director
Sep 5, 20257,000$595.00KSep 5, 2025Preferred Stock Conversion
Frank P. Simpkins
Director
Aug 25, 202510,000$912.60KAug 25, 2025Compensatory grant from issuer
Li Xun
Chief Financial Officer
Aug 25, 20258,221$750.25KAug 25, 2025Exercise of SARs
He Hong
Director
Aug 13, 20252,500$225.07KAug 13, 2025Restricted stock vesting under a registered plan
Frank P. Simpkins
Director
Aug 12, 20255,000$474.27KAug 12, 2025RSA
Constantine Xykis
Officer
Aug 12, 202526,005$2.49MAug 12, 2025Compensatory Grant from Issuer
America Corp. Weichai
10% Stockholder
Aug 8, 20251,150,000$100.04MAug 12, 2025Privately Negotiated Transaction