Guy Spier - Aquamarine Capital Management
Holding/activity history for Micron Technology, Inc. (MU)
← All MU superinvestors
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2025 Q4 | 0 | 0.00 | Sell 100.00% | 4.22 | $221.69–455.50 · VW $363.19i | SEC | |
| 2025 Q3 | 80,000 | 4.22 | Reduce 60.00% | 4.77 | $114.25–260.58 · VW $203.77i | $13,386,000 | SEC |
| 2025 Q2 | 200,000 | 7.96 | $123.25 | $24,650,000 | SEC | ||
| 2025 Q1 | 200,000 | 5.92 | $86.89 | $17,378,000 | SEC | ||
| 2024 Q4 | 200,000 | 5.85 | $84.16 | $16,832,000 | SEC | ||
| 2024 Q3 | 200,000 | 7.26 | $103.71 | $20,742,000 | SEC | ||
| 2024 Q2 | 200,000 | 10.02 | $131.53 | $26,306,000 | SEC | ||
| 2024 Q1 | 200,000 | 9.00 | $117.89 | $23,578,000 | SEC | ||
| 2023 Q4 | 200,000 | 7.46 | $85.34 | $17,068,000 | SEC | ||
| 2023 Q3 | 200,000 | 6.71 | $68.03 | $13,606,000 | SEC | ||
| 2023 Q2 | 200,000 | 6.02 | $63.11 | $12,622,000 | SEC | ||
| 2023 Q1 | 200,000 | 6.24 | $60.34 | $12,068,000 | SEC | ||
| 2022 Q4 | 200,000 | 5.38 | $49.98 | $9,996,000 | SEC | ||
| 2022 Q3 | 200,000 | 6.10 | $50.10 | $10,020,000 | SEC | ||
| 2022 Q2 | 200,000 | 6.49 | $55.28 | $11,056,000 | SEC | ||
| 2022 Q1 | 200,000 | 7.06 | $77.89 | $15,578,000 | SEC | ||
| 2021 Q4 | 200,000 | 8.56 | $93.15 | $18,630,000 | SEC | ||
| 2021 Q3 | 200,000 | 6.96 | $70.98 | $14,196,000 | SEC | ||
| 2021 Q2 | 200,000 | 7.97 | $84.98 | $16,996,000 | SEC | ||
| 2021 Q1 | 200,000 | 9.22 | $88.21 | $17,642,000 | SEC | ||
| 2020 Q4 | 200,000 | 8.77 | Add 66.67% | 3.51 | $65.14–93.10 · VW $83.26i | $15,036,000 | SEC |
| 2020 Q3 | 120,000 | 3.72 | $46.96 | $5,635,000 | SEC | ||
| 2020 Q2 | 120,000 | 4.50 | $51.52 | $6,182,000 | SEC | ||
| 2020 Q1 | 120,000 | 3.44 | $42.06 | $5,047,000 | SEC | ||
| 2019 Q4 | 120,000 | 2.97 | $53.78 | $6,454,000 | SEC | ||
| 2019 Q3 | 120,000 | 2.60 | Buy | 2.60 | $41.75–51.39 · VW $46.88i | $5,142,000 | SEC |
Price snapshot:
Current price$937.00
52-week low$103.21
52-week high$1,254.81