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CenterBook Partners’s Monolithic Power Systems MPWR Stock Holding History

CenterBook 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
Q1 		$243K Buy
+222
New +$243K 0.01% 601
2025
Q3 		– Sell
-769
Closed -$562K – 624
2025
Q2 		$562K Buy
+769
New +$490K 0.03% 418
2024
Q4 		– Sell
-1,345
Closed -$1.24M – 549
2024
Q3 		$1.24M Buy
+1,345
New +$1.16M 0.08% 269

Other funds holding MPWR

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
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
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
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

CenterBook Partners's MPWR Position: Q1 2026 in Review

CenterBook Partners opened a new position in Monolithic Power Systems (MPWR) in Q1 2026: 222 shares worth $243K. The stake represents 0.01% of the portfolio and ranks #601 among its holdings. This is a return to the name: CenterBook Partners previously reported a position in MPWR as recently as Q2 2025.

CenterBook Partners first reported a position in MPWR in Q3 2024 and has held it in 3 quarters since. The position peaked at $1.24M in Q3 2024. 1,115 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

  • CenterBook Partners held 222 shares of Monolithic Power Systems worth $243K as of Q1 2026.
  • Monolithic Power Systems was a new CenterBook Partners position in Q1 2026.
  • Monolithic Power Systems made up 0.01% of CenterBook Partners's portfolio in Q1 2026, its #601 holding.
  • CenterBook Partners first reported a position in Monolithic Power Systems in Q3 2024 and has held it in 3 quarters since.
  • CenterBook Partners's Monolithic Power Systems position peaked at $1.24M in Q3 2024.
  • 1,115 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on CenterBook Partners's 13F filing for Q1 2026, filed 5 May 2026.