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Ruane, Cunniff & Goldfarb’s Micron Technology MU Stock Holding History

Ruane, Cunniff & Goldfarb’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 		$2.5M Hold
2,162
– – 0.04% 26
2026
Q1 		$730K Hold
2,162
– – 0.01% 35
2025
Q4 		$617K Hold
2,162
– – 0.01% 32
2025
Q3 		$362K Hold
2,162
– – 0.01% 32
2025
Q2 		$266K Buy
+2,162
New +$202K ﹤0.01% 37
2024
Q4 		– Sell
-2,162
Closed -$224K – 40
2024
Q3 		$224K Hold
2,162
– – ﹤0.01% 35
2024
Q2 		$284K Sell
2,162
-1,000
-32% -$126K ﹤0.01% 31
2024
Q1 		$373K Hold
3,162
– – 0.01% 28
2023
Q4 		$270K Sell
3,162
-3,646
-54% -$271K ﹤0.01% 28
2023
Q3 		$463K Sell
6,808
-173
-2% -$11.6K 0.01% 30
2023
Q2 		$441K Sell
6,981
-4,657,030
-100% -$299M 0.01% 28
2023
Q1 		$281M Sell
4,664,011
-101,441
-2% -$5.94M 4.6% 11
2022
Q4 		$238M Sell
4,765,452
-154,988
-3% -$8.48M 3.72% 13
2022
Q3 		$247M Sell
4,920,440
-2,565,636
-34% -$149M 3.66% 14
2022
Q2 		$414M Sell
7,486,076
-219,333
-3% -$14.9M 5.39% 9
2022
Q1 		$600M Sell
7,705,409
-72,728
-0.9% -$6.2M 5.91% 8
2021
Q4 		$725M Sell
7,778,137
-264,091
-3% -$20.6M 6.19% 6
2021
Q3 		$571M Sell
8,042,228
-106,493
-1% -$8M 5.13% 9
2021
Q2 		$692M Buy
8,148,721
+2,823,578
+53% +$238M 6.14% 7
2021
Q1 		$470M Buy
+5,325,143
New +$452M 4.42% 9

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

Ruane, Cunniff & Goldfarb's MU Position: Q2 2026 in Review

Ruane, Cunniff & Goldfarb held its Micron Technology (MU) position steady in Q2 2026 at 2,162 shares worth $2.5M. The position accounts for 0.04% of the portfolio, ranked #26.

Ruane, Cunniff & Goldfarb first reported a position in MU in Q1 2021 and has held it in 20 quarters since. The position peaked at $725M in Q4 2021. 3,875 funds tracked by Wall St. Rank hold MU as of Q2 2026.

  • Ruane, Cunniff & Goldfarb held 2,162 shares of Micron Technology worth $2.5M as of Q2 2026.
  • Ruane, Cunniff & Goldfarb left its Micron Technology share count unchanged in Q2 2026.
  • Micron Technology made up 0.04% of Ruane, Cunniff & Goldfarb's portfolio in Q2 2026, its #26 holding.
  • Ruane, Cunniff & Goldfarb first reported a position in Micron Technology in Q1 2021 and has held it in 20 quarters since.
  • Ruane, Cunniff & Goldfarb's Micron Technology position peaked at $725M in Q4 2021.
  • 3,875 funds tracked by Wall St. Rank held Micron Technology as of Q2 2026.

Based on Ruane, Cunniff & Goldfarb's 13F filing for Q2 2026, filed 14 Aug 2026.