Marshall Wace
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Marshall Wace’s Power Integrations POWI Stock Holding History

Marshall Wace’s Portfolio POWI Stock Details POWI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-360,161
Closed -$18.4M – 3611
2026
Q1 		$18.4M Sell
360,161
-133,547
-27% -$6.13M 0.02% 732
2025
Q4 		$17.5M Buy
493,708
+78,968
+19% +$2.99M 0.02% 671
2025
Q3 		$16.7M Sell
414,740
-8,991
-2% -$434K 0.02% 731
2025
Q2 		$23.7M Buy
423,731
+268,875
+174% +$13.8M 0.03% 526
2025
Q1 		$7.82M Buy
+154,856
New +$9.27M 0.01% 865
2024
Q4 		– Sell
-17,102
Closed -$1.1M – 2920
2024
Q3 		$1.1M Sell
17,102
-174,572
-91% -$11.5M ﹤0.01% 1619
2024
Q2 		$13.5M Sell
191,674
-36,339
-16% -$2.61M 0.02% 616
2024
Q1 		$16.3M Buy
228,013
+206,363
+953% +$15.4M 0.02% 587
2023
Q4 		$1.78M Buy
+21,650
New +$1.66M ﹤0.01% 1270
2022
Q1 		– Sell
-64,368
Closed -$5.98M – 3877
2021
Q4 		$5.98M Buy
+64,368
New +$6.32M 0.01% 1235
2020
Q2 		– Sell
-24,638
Closed -$1.09M – 1866
2020
Q1 		$1.09M Buy
24,638
+10,416
+73% +$503K 0.01% 785
2019
Q4 		$703K Buy
+14,222
New +$656K ﹤0.01% 1067
2015
Q1 		– Sell
-28,786
Closed -$745K – 911
2014
Q4 		$745K Buy
+28,786
New +$732K 0.01% 608

Other funds holding POWI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
DGI
Disciplined Growth Investors Minneapolis, Minnesota $5.91B AUM 53.97% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Marshall Wace's POWI Position: Q2 2026 in Review

Marshall Wace sold out of Power Integrations (POWI) in Q2 2026, closing a stake of 360,161 shares — an estimated $18.4M sold.

Marshall Wace first reported a position in POWI in Q4 2014 and held it in 13 quarters. The position peaked at $23.7M in Q2 2025. 372 funds tracked by Wall St. Rank hold POWI as of Q2 2026.

  • Marshall Wace reported no remaining Power Integrations position as of Q2 2026 after selling out during the quarter.
  • Marshall Wace sold 360,161 Power Integrations shares in Q2 2026, an estimated $18.4M.
  • Marshall Wace first reported a position in Power Integrations in Q4 2014 and held it in 13 quarters.
  • Marshall Wace's Power Integrations position peaked at $23.7M in Q2 2025.
  • 372 funds tracked by Wall St. Rank held Power Integrations as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.