RF
MU icon

Rossby Financial’s Micron Technology MU Stock Holding History

Rossby Financial’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
Q1 		$679K Buy
1,846
+1,044
+130% +$409K 0.14% 136
2025
Q4 		$229K Buy
802
+422
+111% +$96.8K 0.07% 260
2025
Q3 		$69.2K Hold
380
– – 0.02% 466
2025
Q2 		$46.8K Buy
380
+139
+58% +$13K 0.02% 508
2025
Q1 		$19.2K Buy
+241
New +$23.1K 0.01% 627

Other funds holding MU

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Rossby Financial's MU Position: Q1 2026 in Review

Rossby Financial increased its Micron Technology (MU) stake by 130% in Q1 2026, buying an estimated $409K and bringing the position to 1,846 shares worth $679K. The position accounts for 0.14% of the portfolio, ranked #136.

Rossby Financial first reported a position in MU in Q1 2025 and has held it in 5 quarters since. 2,990 funds tracked by Wall St. Rank hold MU as of Q1 2026.

  • Rossby Financial held 1,846 shares of Micron Technology worth $679K as of Q1 2026.
  • Rossby Financial bought 1,044 Micron Technology shares in Q1 2026, an estimated $409K.
  • Micron Technology made up 0.14% of Rossby Financial's portfolio in Q1 2026, its #136 holding.
  • Rossby Financial first reported a position in Micron Technology in Q1 2025 and has held it in 5 quarters since.
  • 2,990 funds tracked by Wall St. Rank held Micron Technology as of Q1 2026.

Based on Rossby Financial's 13F filing for Q1 2026, filed 11 May 2026.