Power Solutions International, Inc. (PSIX) Institutional Ownership

Based on Q1 2026 13F filings, institutional ownership of Power Solutions International, Inc. stands at 46.9%, held across 196 reporting institutions.

BlackRock, Inc. is the largest reported institutional holder of PSIX, with approximately 715,556 shares worth $0.04B as of Q1 2026.

Yes — 3 widely-followed marquee investors appear among the top 25 institutional holders of PSIX, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, CITADEL ADVISORS LLC, MILLENNIUM MANAGEMENT LLC.

Our composite Smart Money Score for PSIX is 72 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.

54 institutions opened new positions in PSIX during Q1 2026, while 49 fully exited. 103 added to existing positions and 38 trimmed.

PSIX institutional ownership rose by 4.10 percentage points quarter-over-quarter, with a net change of +5 holders.

The top 10 institutions account for 51.3% of all reported 13F value in PSIX, and the top 25 account for 75.7%.

All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.