Barclays
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Barclays’s Monolithic Power Systems MPWR Stock Holding History

Barclays’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
2021
Q4 		– Sell
-14,500
Closed -$7.03M – 4527
2021
Q3 		$7.03M Buy
+14,500
New +$6.6M ﹤0.01% 1395
2019
Q3 		– Sell
-1,000
Closed -$136K – 6971
2019
Q2 		$136K Hold
1,000
– – ﹤0.01% 5443
2019
Q1 		$135K Buy
+1,000
New +$131K ﹤0.01% 5118

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

Barclays's MPWR Position: Q1 2026 in Review

Barclays reduced its Monolithic Power Systems (MPWR) stake by 8.1% in Q1 2026, selling an estimated $53.5M and leaving 555,808 shares worth $608M. The position accounts for 0.15% of the portfolio, ranked #109.

Barclays first reported a position in MPWR in Q2 2013 and has held it in 51 quarters since. 1,115 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

  • Barclays held 555,808 shares of Monolithic Power Systems worth $608M as of Q1 2026.
  • Barclays sold 48,994 Monolithic Power Systems shares in Q1 2026, an estimated $53.5M.
  • Monolithic Power Systems made up 0.15% of Barclays's portfolio in Q1 2026, its #109 holding.
  • Barclays first reported a position in Monolithic Power Systems in Q2 2013 and has held it in 51 quarters since.
  • 1,115 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on Barclays's 13F filing for Q1 2026, filed 15 May 2026.