Power Solutions International

PSIX

Market cap $705M

PSIX Hedge Fund Activity: Q1 2026 in Review

201 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Power Solutions International (PSIX) for Q1 2026, worth a combined $419M — up 6.6% from $393M a quarter earlier.

Buyers outnumbered sellers: 55 funds opened new PSIX positions and 43 closed out — a net gain of 12 holders — while 64 added to existing stakes and 50 trimmed.

The largest buyer was SG Americas Securities, adding an estimated $15.3M. The largest seller was Driehaus Capital Management, exiting entirely with an estimated $13.1M sold.

• 201 institutional investors held Power Solutions International (PSIX) as of Q1 2026, up from 193 in Q4 2025.
• Funds reported $419M of Power Solutions International stock for Q1 2026, up 6.6% quarter-over-quarter.
• 55 funds opened new Power Solutions International positions in Q1 2026 and 43 closed out, a net change of +12 holders.
• The largest Power Solutions International buyer in Q1 2026 was SG Americas Securities, an estimated $15.3M added.
• The largest Power Solutions International seller in Q1 2026 was Driehaus Capital Management, an estimated $13.1M sold.

Based on aggregated 13F filings for Q1 2026.