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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.

New
Increased
Maintained
Reduced
Closed

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

Holders
308
Holders Change
+10
Holders Change %
+3.36%
% of All Funds
3.79%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
% of All Funds
0.01%
New
54
Increased
117
Reduced
97
Closed
38
Calls
$4.92M
Puts
$8.28M
Net Calls
-$3.36M
Net Calls Change
+$6.02M

Top Buyers

1
William Blair Investment Management
William Blair Investment Management
Illinois
+$109M
2
Hudson Bay Capital Management
Hudson Bay Capital Management
Connecticut
+$45.9M
3
Wellington Management Group
Wellington Management Group
Massachusetts
+$42.8M
4
N
Nuveen
North Carolina
+$42M
5
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$20.8M

Top Sellers

1
Voloridge Investment Management
Voloridge Investment Management
Florida
-$19.9M
2
JP Morgan Chase
JP Morgan Chase
New York
-$16.8M
3
Nomura Holdings
Nomura Holdings
Japan
-$15.1M
4
State Street
State Street
Massachusetts
-$14.8M
5
GPGA
Grandeur Peak Global Advisors
Utah
-$13.8M
Name Holding Trade Value Shares
Change 		Change in
Stake
EP
301
Essential Partners
California
$410 +$367 +8 New
AW
302
Ankerstar Wealth
Texas
$358 – – –
DF
303
Dunhill Financial
United Kingdom
$322 +$229 +5 +500%
CFD
304
Creative Financial Designs
Indiana
$205 – – –
AWM
305
Abound Wealth Management
Tennessee
$205 +$184 +4 New
MCM
306
MV Capital Management
Maryland
$103 +$46 +1 +100%
CIAM
307
Caitong International Asset Management
Hong Kong
$102 -$138 -3 -60%
Renaissance Technologies
308
Renaissance Technologies
New York
– -$7.32M -206,100 Closed
Millennium Management
309
Millennium Management
New York
– -$3.79M -106,559 Closed
D.E. Shaw & Co
310
D.E. Shaw & Co
New York
– -$3.1M -87,212 Closed
Canada Pension Plan Investment Board
311
Canada Pension Plan Investment Board
Ontario, Canada
– -$3.04M -85,500 Closed
TI
312
Trexquant Investment
Connecticut
– -$2.94M -82,782 Closed
N
313
Numerai
California
– -$2.67M -75,079 Closed
EGM
314
Engineers Gate Manager
New York
– -$2.41M -67,800 Closed
PAM
315
Panagora Asset Management
Massachusetts
– -$2.12M -59,753 Closed
Capital Fund Management (CFM)
316
Capital Fund Management (CFM)
France
– -$1.8M -50,599 Closed
CCIA
317
Campbell & Co Investment Adviser
Maryland
– -$1.73M -48,715 Closed
ACM
318
Arosa Capital Management
Florida
– -$1.42M -40,000 Closed
GCP
319
GSA Capital Partners
United Kingdom
– -$1.07M -30,174 Closed
QT
320
Quantbot Technologies
New York
– -$861K -24,215 Closed
AG
321
Algert Global
California
– -$822K -23,140 Closed
Two Sigma Advisers
322
Two Sigma Advisers
New York
– -$800K -22,500 Closed
ACM
323
Aquatic Capital Management
Illinois
– -$720K -20,257 Closed
LCM
324
Legato Capital Management
California
– -$711K -20,019 Closed
MFS
325
Mirabella Financial Services
United Kingdom
– -$645K -18,156 Closed
10 11 12
13
14

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.