Mariner
POWI icon

Mariner’s Power Integrations POWI Stock Holding History

Mariner’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
2025
Q3 		– Sell
-13,360
Closed -$747K – 3715
2025
Q2 		$747K Buy
13,360
+4,207
+46% +$216K ﹤0.01% 2017
2025
Q1 		$462K Buy
9,153
+2,004
+28% +$120K ﹤0.01% 2265
2024
Q4 		$441K Buy
7,149
+71
+1% +$4.51K ﹤0.01% 2288
2024
Q3 		$454K Sell
7,078
-640
-8% -$42.3K ﹤0.01% 2218
2024
Q2 		$542K Buy
7,718
+280
+4% +$20.1K ﹤0.01% 1989
2024
Q1 		$532K Sell
7,438
-653
-8% -$48.8K ﹤0.01% 1980
2023
Q4 		$664K Buy
8,091
+485
+6% +$37.2K ﹤0.01% 1746
2023
Q3 		$580K Sell
7,606
-251
-3% -$21.5K ﹤0.01% 1682
2023
Q2 		$744K Sell
7,857
-3,012
-28% -$251K ﹤0.01% 1478
2023
Q1 		$919K Buy
10,869
+377
+4% +$31.3K ﹤0.01% 1312
2022
Q4 		$752K Buy
10,492
+1,367
+15% +$97.6K ﹤0.01% 1384
2022
Q3 		$587K Buy
+9,125
New +$683K ﹤0.01% 1324
2022
Q2 		– Sell
-11,109
Closed -$1.03M – 1430
2022
Q1 		$1.03M Buy
+11,109
New +$968K ﹤0.01% 923
2019
Q3 		– Sell
-9,342
Closed -$375K – 955
2019
Q2 		$375K Sell
9,342
-166
-2% -$6.07K ﹤0.01% 804
2019
Q1 		$332K Buy
+9,508
New +$323K ﹤0.01% 784

Other funds holding POWI

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
DGI
Disciplined Growth Investors Minneapolis, Minnesota $4.89B AUM 33.85% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
CCM
Copeland Capital Management Conshohocken, Pennsylvania $4.5B AUM 18.67% 1-Year Est. Return

Mariner's POWI Position: Q3 2025 in Review

Mariner sold out of Power Integrations (POWI) in Q3 2025, closing a stake of 13,360 shares — an estimated $747K sold.

Mariner first reported a position in POWI in Q1 2019 and held it in 15 quarters. The position peaked at $1.03M in Q1 2022. 315 funds tracked by Wall St. Rank hold POWI as of Q3 2025.

  • Mariner reported no remaining Power Integrations position as of Q3 2025 after selling out during the quarter.
  • Mariner sold 13,360 Power Integrations shares in Q3 2025, an estimated $747K.
  • Mariner first reported a position in Power Integrations in Q1 2019 and held it in 15 quarters.
  • Mariner's Power Integrations position peaked at $1.03M in Q1 2022.
  • 315 funds tracked by Wall St. Rank held Power Integrations as of Q3 2025.

Based on Mariner's 13F filing for Q3 2025, filed 14 Nov 2025.