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Castleark Management’s Micron Technology MU Stock Holding History

Castleark Management’s Portfolio MU Stock Details MU Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$9.11M Sell
7,890
-3,090
-28% -$2.32M 0.25% 101
2026
Q1 		$3.71M Buy
+10,980
New +$4.3M 0.12% 171

Other funds holding MU

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

Castleark Management's MU Position: Q2 2026 in Review

Castleark Management reduced its Micron Technology (MU) stake by 28% in Q2 2026, selling an estimated $2.32M and leaving 7,890 shares worth $9.11M. The position accounts for 0.25% of the portfolio, ranked #101.

Castleark Management first reported a position in MU in Q1 2026 and has held it in 2 quarters since. 3,875 funds tracked by Wall St. Rank hold MU as of Q2 2026.

  • Castleark Management held 7,890 shares of Micron Technology worth $9.11M as of Q2 2026.
  • Castleark Management sold 3,090 Micron Technology shares in Q2 2026, an estimated $2.32M.
  • Micron Technology made up 0.25% of Castleark Management's portfolio in Q2 2026, its #101 holding.
  • Castleark Management first reported a position in Micron Technology in Q1 2026 and has held it in 2 quarters since.
  • 3,875 funds tracked by Wall St. Rank held Micron Technology as of Q2 2026.

Based on Castleark Management's 13F filing for Q2 2026, filed 14 Aug 2026.