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Woodline Partners’s Monolithic Power Systems MPWR Stock Holding History

Woodline Partners’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
2026
Q2 		$20.2M Buy
14,587
+12,718
+680% +$19.1M 0.06% 368
2026
Q1 		$2.04M Sell
1,869
-771
-29% -$842K 0.01% 804
2025
Q4 		$2.39M Buy
+2,640
New +$2.54M 0.01% 750
2025
Q3 		– Sell
-8,541
Closed -$6.25M – 993
2025
Q2 		$6.25M Buy
+8,541
New +$5.44M 0.03% 519
2025
Q1 		– Sell
-2,667
Closed -$1.58M – 988
2024
Q4 		$1.58M Buy
+2,667
New +$1.93M 0.01% 692
2023
Q4 		– Sell
-36,627
Closed -$16.9M – 593
2023
Q3 		$16.9M Buy
+36,627
New +$18.7M 0.2% 151
2023
Q2 		– Sell
-25,531
Closed -$12.8M – 709
2023
Q1 		$12.8M Sell
25,531
-28,991
-53% -$13.3M 0.17% 168
2022
Q4 		$19.3M Sell
54,522
-7,909
-13% -$2.84M 0.26% 115
2022
Q3 		$22.7M Buy
62,431
+6,408
+11% +$2.85M 0.32% 87
2022
Q2 		$21.5M Buy
+56,023
New +$23.7M 0.33% 93
2022
Q1 		– Sell
-41,813
Closed -$20.6M – 786
2021
Q4 		$20.6M Buy
+41,813
New +$21.6M 0.3% 91
2021
Q3 		– Sell
-36,855
Closed -$13.8M – 726
2021
Q2 		$13.8M Buy
+36,855
New +$13M 0.26% 105
2021
Q1 		– Sell
-53,328
Closed -$19.5M – 458
2020
Q4 		$19.5M Buy
+53,328
New +$17.1M 0.52% 60
2020
Q3 		– Sell
-39,878
Closed -$9.45M – 201
2020
Q2 		$9.45M Buy
+39,878
New +$8.07M 0.37% 75

Other funds holding MPWR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Woodline Partners's MPWR Position: Q2 2026 in Review

Woodline Partners increased its Monolithic Power Systems (MPWR) stake by 680% in Q2 2026, buying an estimated $19.1M and bringing the position to 14,587 shares worth $20.2M. The position accounts for 0.06% of the portfolio, ranked #368.

Woodline Partners first reported a position in MPWR in Q2 2020 and has held it in 14 quarters since. The position peaked at $22.7M in Q3 2022. 1,243 funds tracked by Wall St. Rank hold MPWR as of Q2 2026.

  • Woodline Partners held 14,587 shares of Monolithic Power Systems worth $20.2M as of Q2 2026.
  • Woodline Partners bought 12,718 Monolithic Power Systems shares in Q2 2026, an estimated $19.1M.
  • Monolithic Power Systems made up 0.06% of Woodline Partners's portfolio in Q2 2026, its #368 holding.
  • Woodline Partners first reported a position in Monolithic Power Systems in Q2 2020 and has held it in 14 quarters since.
  • Woodline Partners's Monolithic Power Systems position peaked at $22.7M in Q3 2022.
  • 1,243 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2026.

Based on Woodline Partners's 13F filing for Q2 2026, filed 14 Aug 2026.