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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
Optiver Holding
251
Optiver Holding
Netherlands
$9.93K +$8.9K +194 New
PPC
252
Park Place Capital
Alabama
$9.83K – – –
SEP
253
Signature Equity Partners
Ohio
$9.57K +$2.48K +54 +41%
BTI
254
Blue Trust Inc
Georgia
$9.47K +$8.49K +185 New
TFA
255
Transamerica Financial Advisors
Florida
$9.06K +$275 +6 +4%
SGK
256
Steigerwald Gordon & Koch
Virginia
$8.19K – – –
RIL
257
Rothschild Investment LLC
Illinois
$7.37K +$2.06K +45 +45%
VCM
258
Versant Capital Management
Arizona
$7.37K +$4.59K +100 +227%
API
259
Asset Planning Inc
California
$6.46K – – –
MCM
260
MAI Capital Management
Ohio
$6.4K +$2.06K +45 +56%
AF
261
Advisornet Financial
Minnesota
$5.94K – – –
MPWT
262
MassMutual Private Wealth & Trust
Connecticut
$5.94K +$826 +18 +18%
CA
263
Crewe Advisors
Utah
$5.74K – – –
TWD
264
True Wealth Design
Ohio
$5.68K – – –
AT
265
Arlington Trust
Alabama
$5.48K +$4.91K +107 New
PFBT
266
Parkside Financial Bank & Trust
Missouri
$5.07K -$1.1K -24 -20%
NA
267
NewEdge Advisors
Louisiana
$4.92K – – –
BIA
268
Bell Investment Advisors
California
$4.71K +$4.22K +92 New
RFP
269
Root Financial Partners
California
$4.66K +$2.57K +56 +160%
BCM
270
Boreal Capital Management
Florida
$4.1K – – –
ST
271
Smithfield Trust
Pennsylvania
$4K – – –
ZBNA
272
Zions Bancorporation, National Association
Utah
$3.84K +$1.93K +42 +127%
Group One Trading
273
Group One Trading
Illinois
$3.53K -$220K -4,795 -99%
TPCW
274
TD Private Client Wealth
New York
$3.38K – – –
MAFA
275
MJT & Associates Financial Advisory
Minnesota
$3.33K – – –
9 10
11
12 13

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.