Ruane Cunniff's MU Position Overview
Ruane Cunniff (via Ruane, Cunniff & Goldfarb L.P.) currently holds 2,162 shares of Micron Technology, Inc. (MU) worth $617,056, representing 0.01% of the portfolio. First purchased in 2021-Q1, this medium-term investment has been held for 19 quarters.
Based on 13F filings, Ruane Cunniff has maintained a strategic position in MU, demonstrating sustained confidence in this investment. Largest addition occurred in Q2 2021, adding 2.82 M shares. Largest reduction occurred in Q2 2023, reducing 4.66 M shares.
Analysis based on 13F filings available since 2013 Q2
Ruane Cunniff's Micron Technology (MU) Holding Value Over Time
Track share changes against reported price movement
Quarterly Micron Technology (MU) Trades by Ruane Cunniff
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2025 | +2,162 | New Buy | 2,162 | $123.25 |
| Q4 2024 | -2,162 | Sold Out | 0 | $0.00 |
| Q2 2024 | -1,000 | Reduce 31.63% | 2,162 | $131.53 |
| Q4 2023 | -3,646 | Reduce 53.55% | 3,162 | $85.34 |
| Q3 2023 | -173 | Reduce 2.48% | 6,808 | $68.03 |
| Q2 2023 | -4.66 M | Reduce 99.85% | 6,981 | $63.11 |
| Q1 2023 | -101,441 | Reduce 2.13% | 4.66 M | $60.34 |
| Q4 2022 | -154,988 | Reduce 3.15% | 4.77 M | $49.98 |
| Q3 2022 | -2.57 M | Reduce 34.27% | 4.92 M | $50.10 |
| Q2 2022 | -219,333 | Reduce 2.85% | 7.49 M | $55.28 |
| Q1 2022 | -72,728 | Reduce 0.94% | 7.71 M | $77.89 |
| Q4 2021 | -264,091 | Reduce 3.28% | 7.78 M | $93.15 |
| Q3 2021 | -106,493 | Reduce 1.31% | 8.04 M | $70.98 |
| Q2 2021 | +2.82 M | Add 53.02% | 8.15 M | $84.98 |
| Q1 2021 | +5.33 M | New Buy | 5.33 M | $88.21 |
Ruane Cunniff's Micron Technology Investment FAQs
Ruane Cunniff first purchased Micron Technology, Inc. (MU) in Q1 2021, acquiring 5,325,143 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Ruane Cunniff has held Micron Technology, Inc. (MU) for 19 quarters since Q1 2021.
Ruane Cunniff's largest addition to Micron Technology, Inc. (MU) was in Q1 2021, adding 5,325,143 shares worth $469.73 M.
According to the latest 13F filing for Q4 2025, Ruane Cunniff's firm, Ruane, Cunniff & Goldfarb L.P., owns 2,162 shares of Micron Technology, Inc. (MU), valued at approximately $617,056.
As of the Q4 2025 filing, Micron Technology, Inc. (MU) represents approximately 0.01% of Ruane Cunniff's publicly disclosed stock portfolio, making it one of their key holdings.
Ruane Cunniff's peak holding in Micron Technology, Inc. (MU) was 8,148,721 shares, as reported at the end of Q2 2021.