Power Solutions International
PSIX
50.79
-0.84
-1.63%
Power Solutions International
US · PSIX
#3138 by market cap
Listed 2011
50.79
-0.84
-1.63%
Live - 5344 symbols - heartbeat 395s ago
· 2026-10-08 10:11
Pre-market
50.78
-1.65%
After-hours
52.30
+1.30%
Overnight
51.50
-0.25%
- Market cap
- 1.17B
- P/E (TTM)i
- 17.28
- P/Bi
- 5.77
- EPSi
- 4.94
- Div yieldi
- 0.00%
- 52W posi
- 31%
Reader sentiment
Are you bullish or bearish on PSIX?
Anonymous reader poll. Unscientific, not investment advice.
✦ Quant Ownership Signal how this is computed
Distributing
- The number of reporting institutions decreased by 3 in the most recent period (2026/Q3).
- Total institutional ownership fell 0.5 percentage points.
Institutional ownership
- Held by institutions
- 82.85% -0.48pp
- Institutions
- 194 -3
- As of
- 2026/Q3 vs. prior period
Ownership vs. money flow
DivergingInstitutions trimmed shares last reporting period, and the stock has seen net inflows in main-fund flow over the last 20 trading sessions - the two are pointing in different directions.
Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.
Holder types
Public Company49.02%
Individual/Insider17.17%
Mutual Fund15.72%
Hedge Fund15.64%
Private Company1.39%
VC/PE Fund0.67%
Government Pension Fund0.16%
Family Office/Trust0.11%
Insurance Company0.10%
Top holders as of 2026-05-26
Weichai Power Co., Ltd.
45.96% · 10.60M sh
Kenneth Winemaster
9.59% · 2.21M sh
Point72 Asset Management, L.P.
6.49% · 1.50M sh
Gary Winemaster
6.31% · 1.46M sh
BlackRock
3.55% · 818.97K sh
Newtyn Management, LLC
2.61% · 600.89K sh
Vanguard Capital Management, LLC
1.70% · 391.62K sh
Yunqi Capital Limited
1.47% · 339.00K sh
Barclays PLC
1.35% · 310.89K sh
Dimensional Fund Advisors
1.29% · 296.81K sh
Bar length is relative to the largest holder shown here, not to 100% of the company.
Insiders
50 filings tracked · 11 buys · 39 sells
| Name | Role | Stake |
|---|---|---|
| Weichai Power Co., Ltd. | -- | 45.96% |
| Kenneth Winemaster | Co-Founder & Former Executive VP | 9.59% |
| Gary Winemaster | Former Chief Strategy Officer | 6.31% |
| Frank Simpkins | Independent Director | 0.13% |
| Hong He | Independent Director | 0.10% |
| Courtney Shea | Director | 0.02% |
| Xun Li | Chief Financial Officer | 0.02% |
| Constantine Xykis | Chief Technical Officer & CEO | -- |
| Kenneth Landini | Independent Lead Outside Director | -- |
| Zhaoying Du | General Counsel | -- |
Insider transactions most recent Form 4 filings
| Date | Name | Role | Type | Shares | Price |
|---|---|---|---|---|---|
| 2026-03-05 | Xun Li | Chief Financial Officer | Other Derivative Acquisition | +1,665 | -- |
| 2026-03-05 | Zhaoying Du | General Counsel | Other Derivative Acquisition | +1,492 | -- |
| 2026-02-11 | Xun Li | Chief Financial Officer | Derivative Exercise and Sale | -3,429 | $2.00–92.72 |
| 2026-02-11 | Xun Li | Chief Financial Officer | Derivative Exercise and Retained | +4,071 | $2.00 |
| 2025-12-10 | Frank Simpkins | Independent Director | Other Acquisition | +5,000 | -- |
| 2025-12-10 | Courtney Shea | Director | Other Acquisition | +5,000 | -- |
| 2025-12-10 | Hong He | Independent Director | Other Acquisition | +5,000 | -- |
| 2025-12-10 | Zhaoying Du | General Counsel | Other Derivative Acquisition | +700 | $65.76 |
| 2025-09-28 | Kenneth Landini | Independent Lead Outside Director | Intent to Sell (Form 144) | -3,500 | $106.00 |
| 2025-09-17 | Kenneth Landini | Independent Lead Outside Director | Intent to Sell (Form 144) | -6,000 | $100.00 |
| 2025-09-10 | Weichai Power Co., Ltd. | -- | Open Market Disposition | -79,839 | $91.72–94.33 |
| 2025-09-10 | Hong He | Independent Director | Open Market Disposition | -2,500 | $94.00–95.00 |
| 2025-09-10 | Hong He | Independent Director | Intent to Sell (Form 144) | -1,500 | $94.00 |
| 2025-09-09 | Weichai Power Co., Ltd. | -- | Open Market Disposition | -36,554 | $90.28–95.20 |
| 2025-09-09 | Hong He | Independent Director | Intent to Sell (Form 144) | -1,000 | $95.00 |
| 2025-09-08 | Constantine Xykis | Chief Technical Officer & CEO | Open Market Disposition | -7,854 | $91.31 |
| 2025-09-08 | Hong He | Independent Director | Open Market Disposition | -4,000 | $90.00–92.31 |
| 2025-09-07 | Hong He | Independent Director | Open Market Disposition | -1,000 | $89.00 |
| 2025-09-04 | Kenneth Landini | Independent Lead Outside Director | Intent to Sell (Form 144) | -7,000 | $85.00 |
| 2025-08-25 | Weichai Power Co., Ltd. | -- | Open Market Disposition | -94,047 | $80.66–89.00 |
Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.
Quote time 2026-10-08 10:11:32 · For reference only, not investment advice and not tailored to your situation.