Power Integrations

POWI

Market cap $3.93B

POWI Hedge Fund Activity: Q1 2026 in Review

308 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Power Integrations (POWI) for Q1 2026, worth a combined $3.24B — up 53% from $2.12B a quarter earlier.

Buyers outnumbered sellers: 54 funds opened new POWI positions and 38 closed out — a net gain of 16 holders — while 117 added to existing stakes and 97 trimmed.

The largest buyer was William Blair Investment Management, opening a new position worth an estimated $109M. The largest seller was Voloridge Investment Management, cutting an estimated $19.9M.

• 308 institutional investors held Power Integrations (POWI) as of Q1 2026, up from 298 in Q4 2025.
• Funds reported $3.24B of Power Integrations stock for Q1 2026, up 53% quarter-over-quarter.
• 54 funds opened new Power Integrations positions in Q1 2026 and 38 closed out, a net change of +16 holders.
• The largest Power Integrations buyer in Q1 2026 was William Blair Investment Management, an estimated $109M added.
• The largest Power Integrations seller in Q1 2026 was Voloridge Investment Management, an estimated $19.9M sold.

Based on aggregated 13F filings for Q1 2026.