PSIX · Insider trading · 13F holders · Congress trades
Power Solutions Internatio nal,Inc. (PSIX)
Who is buying and selling PSIX: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 8
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 7
PSIX at a glance
- No open-market insider purchases or sales of PSIX were filed in the last 90 days.
- 8 13F filers hold PSIX among their 50 largest positions, worth $80.1M combined. The biggest bets by portfolio weight are Newtyn Management, LLC (2.9%), OnyxPoint Global Management LP (2.2%) and Yiheng Capital Management, L.P. (2.2%). In their latest 13Fs, 3 managers opened a new position and 2 added to one.
- Members of Congress have disclosed 7 PSIX trades since 2019, 6 purchases and 1 sale in the past year; the latest was Tom Malinowski (D-NJ), buying $1K–15K on Dec 30, 2019.
- PSIX last closed at $46.54 on Oct 30, 2026.
PSIX insider trading
No open-market insider purchases or sales of PSIX were filed in the last 90 days.
Who owns PSIX? Hedge funds and superinvestors
8 13F filers hold PSIX among their 50 largest positions, worth $80.1M combined. The biggest bets by portfolio weight are Newtyn Management, LLC (2.9%), OnyxPoint Global Management LP (2.2%) and Yiheng Capital Management, L.P. (2.2%). In their latest 13Fs, 3 managers opened a new position and 2 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Situational Awareness Partners LPHedge fund | 0.7% | $26.3M | 432,300 | — | Q1 2026 |
| Newtyn Management, LLCHedge fund | 2.9% | $23.4M | 600,890 | New | Q2 2026 |
| OLP CAPITAL MANAGEMENT LtdHedge fund | 2.8% | $11.0M | 283,940 | New | Q2 2026 |
| Yiheng Capital Management, L.P.Hedge fund | 2.2% | $5.2M | 133,500 | New | Q2 2026 |
| Meros Investment Management, LPInstitutional asset manager | 1.6% | $5.0M | 129,266 | +229.2% shares | Q2 2026 |
| Hel Ved Capital Management LtdHedge fund | 0.6% | $3.9M | 100,876 | +0.0% shares | Q2 2026 |
| Valiant Capital Management, L.P.Hedge fund | 0.2% | $3.2M | 81,674 | +17.7% shares | Q2 2026 |
| OnyxPoint Global Management LPHedge fund | 2.2% | $2.1M | 53,458 | -31.4% shares | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 7, Q1 2026: 1). Screen PSIX in the grand portfolio →
PSIX stock trades by members of Congress
Members of Congress have disclosed 7 PSIX trades since 2019, 6 purchases and 1 sale in the past year; the latest was Tom Malinowski (D-NJ), buying $1K–15K on Dec 30, 2019.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| Jul 9, 2021 | Tom MalinowskiD-NJ · House | Buy | $1K–15K | Dec 30, 2019 | +621.5% |
| Mar 5, 2021 | Tom MalinowskiD-NJ · House | Buy | $1K–15K | Nov 20, 2020 | +1332.0% |
| Mar 5, 2021 | Tom MalinowskiD-NJ · House | Sale | $15K–50K | Sep 24, 2020 | +1504.8% |
| Mar 5, 2021 | Tom MalinowskiD-NJ · House | Buy | $1K–15K | Aug 25, 2020 | +1192.8% |
| Mar 5, 2021 | Tom MalinowskiD-NJ · House | Buy | $1K–15K | May 7, 2020 | +644.6% |
| Mar 5, 2021 | Tom MalinowskiD-NJ · House | Buy | $1K–15K | Jan 2, 2020 | +403.7% |
| Mar 5, 2021 | Tom MalinowskiD-NJ · House | Buy | $1K–15K | May 15, 2019 | +397.8% |
PSIX questions and answers
Are insiders buying PSIX stock?
No open-market insider purchases or sales of PSIX were filed in the last 90 days.
Which hedge funds own PSIX?
8 13F filers hold PSIX among their 50 largest positions, worth $80.1M combined. The biggest bets by portfolio weight are Newtyn Management, LLC (2.9%), OnyxPoint Global Management LP (2.2%) and Yiheng Capital Management, L.P. (2.2%). In their latest 13Fs, 3 managers opened a new position and 2 added to one.
Has Congress traded PSIX?
Members of Congress have disclosed 7 PSIX trades since 2019, 6 purchases and 1 sale in the past year; the latest was Tom Malinowski (D-NJ), buying $1K–15K on Dec 30, 2019.
Who is the largest holder of PSIX?
Among 13F filers, Situational Awareness Partners LP reports the largest PSIX position, $26.3M (432,300 shares) in its Q1 2026 13F. The biggest bet by portfolio weight is Newtyn Management, LLC's: 2.9% of its portfolio.
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