JO
MPWR icon

John Overdeck’s Monolithic Power Systems MPWR Stock Holding History

John Overdeck’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 		$3.87M Sell
2,800
-3,200
-53% -$4.8M ﹤0.01% 2392
2026
Q1 		$6.56M Buy
6,000
+5,000
+500% +$5.46M 0.01% 1755
2025
Q4 		$906K Buy
+1,000
New +$962K ﹤0.01% 2992
2022
Q1 		– Sell
-6,600
Closed -$3.26M – 3711
2021
Q4 		$3.26M Buy
6,600
+600
+10% +$310K 0.01% 1515
2021
Q3 		$2.91M Hold
6,000
– – 0.01% 1633
2021
Q2 		$2.24M Sell
6,000
-3,200
-35% -$1.13M 0.01% 1764
2021
Q1 		$3.25M Buy
+9,200
New +$3.35M 0.01% 1337

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

John Overdeck's MPWR Position: Q2 2026 in Review

John Overdeck increased its Monolithic Power Systems (MPWR) stake by 1,485% in Q2 2026, buying an estimated $268M and bringing the position to 190,505 shares worth $263M. The position accounts for 0.19% of the portfolio, ranked #112.

John Overdeck first reported a position in MPWR in Q2 2013 and has held it in 19 quarters since. 1,235 funds tracked by Wall St. Rank hold MPWR as of Q2 2026.

  • John Overdeck held 190,505 shares of Monolithic Power Systems worth $263M as of Q2 2026.
  • John Overdeck bought 178,487 Monolithic Power Systems shares in Q2 2026, an estimated $268M.
  • Monolithic Power Systems made up 0.19% of John Overdeck's portfolio in Q2 2026, its #112 holding.
  • John Overdeck first reported a position in Monolithic Power Systems in Q2 2013 and has held it in 19 quarters since.
  • 1,235 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.