Power Integrations
POWI
308 hedge funds and large institutions have $3.24B invested in Power Integrations in 2026 Q1 according to their latest regulatory filings, with 54 funds opening new positions, 117 increasing their positions, 97 reducing their positions, and 38 closing their positions.
53% more capital invested
Capital invested by funds: $2.12B → $3.24B (+$1.12B)
42% more first-time investments, than exits
New positions opened: 54 | Existing positions closed: 38
21% more repeat investments, than reductions
Existing positions increased: 117 | Existing positions reduced: 97
6.63% more ownership
Funds ownership: 107.71% → 114.34% (+6.6%)
3% more funds holding
Funds holding: 298 → 308 (+10)
41% less call options, than puts
Call options by funds: $4.92M | Put options by funds: $8.28M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
William Blair Investment Management
Chicago,
Illinois
|
+$109M |
| 2 |
Hudson Bay Capital Management
Stamford,
Connecticut
|
+$45.9M |
| 3 |
Wellington Management Group
Boston,
Massachusetts
|
+$42.8M |
| 4 |
N
Nuveen
Charlotte,
North Carolina
|
+$42M |
| 5 |
T. Rowe Price Associates
Baltimore,
Maryland
|
+$20.8M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Voloridge Investment Management
Jupiter,
Florida
|
-$19.9M |
| 2 |
JP Morgan Chase
New York
|
-$16.8M |
| 3 |
Nomura Holdings
Tokyo,
Japan
|
-$15.1M |
| 4 |
State Street
Boston,
Massachusetts
|
-$14.8M |
| 5 |
GPGA
Grandeur Peak Global Advisors
Salt Lake City,
Utah
|
-$13.8M |
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.