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MPWR icon

Pitcairn’s Monolithic Power Systems MPWR Stock Holding History

Pitcairn’s Portfolio MPWR Stock Details MPWR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-670
Closed -$617K – 355
2025
Q3 		$617K Sell
670
-636
-49% -$516K 0.05% 299
2025
Q2 		$955K Sell
1,306
-528
-29% -$336K 0.06% 263
2025
Q1 		$1.06M Sell
1,834
-364
-17% -$229K 0.06% 260
2024
Q4 		$1.3M Sell
2,198
-188
-8% -$136K 0.08% 220
2024
Q3 		$2.21M Sell
2,386
-26
-1% -$22.4K 0.13% 138
2024
Q2 		$1.98M Buy
2,412
+18
+0.8% +$13K 0.12% 156
2024
Q1 		$1.62M Buy
2,394
+247
+12% +$165K 0.11% 186
2023
Q4 		$1.35M Buy
2,147
+320
+18% +$167K 0.1% 191
2023
Q3 		$844K Buy
1,827
+699
+62% +$358K 0.07% 243
2023
Q2 		$609K Sell
1,128
-18
-2% -$8.55K 0.05% 300
2023
Q1 		$574K Buy
1,146
+13
+1% +$5.98K 0.05% 312
2022
Q4 		$401K Sell
1,133
-362
-24% -$130K 0.04% 370
2022
Q3 		$543K Buy
1,495
+309
+26% +$137K 0.06% 272
2022
Q2 		$455K Buy
1,186
+48
+4% +$20.3K 0.05% 321
2022
Q1 		$553K Sell
1,138
-414
-27% -$180K 0.05% 333
2021
Q4 		$766K Sell
1,552
-274
-15% -$141K 0.05% 269
2021
Q3 		$885K Buy
+1,826
New +$831K 0.06% 218

Other funds holding MPWR

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
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $935B AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

Pitcairn's MPWR Position: Q4 2025 in Review

Pitcairn sold out of Monolithic Power Systems (MPWR) in Q4 2025, closing a stake of 670 shares — an estimated $617K sold.

Pitcairn first reported a position in MPWR in Q3 2021 and held it in 17 quarters. The position peaked at $2.21M in Q3 2024. 1,059 funds tracked by Wall St. Rank hold MPWR as of Q4 2025.

  • Pitcairn reported no remaining Monolithic Power Systems position as of Q4 2025 after selling out during the quarter.
  • Pitcairn sold 670 Monolithic Power Systems shares in Q4 2025, an estimated $617K.
  • Pitcairn first reported a position in Monolithic Power Systems in Q3 2021 and held it in 17 quarters.
  • Pitcairn's Monolithic Power Systems position peaked at $2.21M in Q3 2024.
  • 1,059 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q4 2025.

Based on Pitcairn's 13F filing for Q4 2025.