MU
Micron Technology, Inc. · Technology · Semiconductors
Momentum inputs (comparable managers):
holder breadth -4.8% ·
share flow +5.3% ·
net new positions -5.0%
— formula
Concentrated accumulation — rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 195 | +8 | 723.87M | $831.04B | +10 | −1 |
| Q1 2026 | 189 | +4 | 717.19M | $241.83B | +7 | −4 |
| Q4 2025 | 184 | +1 | 800.76M | $228.51B | +2 | — |
| Q3 2025 | 25 | +3 | 506.87M | $84.79B | +3 | −1 |
| Q2 2025 | 20 | -1 | 456.94M | $56.30B | — | −1 |
| Q1 2025 | 18 | -4 | 196.28M | $17.05B | — | −4 |
| Q4 2024 | 22 | 0 | 191.00M | $16.08B | +3 | −3 |
| Q3 2024 | 21 | 0 | 131.29M | $13.61B | +2 | −2 |
| Q2 2024 | 21 | — | 136.16M | $17.90B | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 103.88M | — | $12.80B | 0.2% | n/c | 1 | SEC ↗ |
| 2 | The Vanguard Group ✦ (passive) | 103.88M | — | $12.80B | 0.2% | n/c | 1 | SEC ↗ |
| 3 | The Vanguard Group ✦ (passive) | 103.88M | — | $12.80B | 0.2% | n/c | 1 | SEC ↗ |
| 4 | The Vanguard Group ✦ (passive) | 103.88M | — | $12.80B | 0.2% | n/c | 1 | SEC ↗ |
| 5 | The Vanguard Group ✦ (passive) | 103.88M | — | $12.80B | 0.2% | n/c | 1 | SEC ↗ |
| 6 | The Vanguard Group ✦ (passive) | 103.88M | — | $12.80B | 0.2% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 21 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 22 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 23 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 24 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 25 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 26 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 27 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 28 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 29 | BlackRock ✦ (passive) | 92.13M | — | $11.35B | 0.2% | n/c | 1 | SEC ↗ |
| 30 | Capital World Investors ✦ | 70.81M | +30.4% | $8.73B | 1.3% | ▲ Add | 5 | SEC ↗ |
| 31 | State Street Global Advisors ✦ (passive) | 51.37M | +2.7% | $6.33B | 0.2% | ▲ Add | 3 | SEC ↗ |
| 32 | Fidelity (FMR) ✦ | 41.75M | — | $5.15B | 0.3% | n/c | 1 | SEC ↗ |
| 33 | Fidelity (FMR) ✦ | 41.75M | — | $5.15B | 0.3% | n/c | 1 | SEC ↗ |
| 34 | Fidelity (FMR) ✦ | 41.75M | — | $5.15B | 0.3% | n/c | 1 | SEC ↗ |
| 35 | Fidelity (FMR) ✦ | 41.75M | — | $5.15B | 0.3% | n/c | 1 | SEC ↗ |
| 36 | Fidelity (FMR) ✦ | 41.75M | — | $5.15B | 0.3% | n/c | 1 | SEC ↗ |
| 37 | Fidelity (FMR) ✦ | 41.75M | — | $5.15B | 0.3% | n/c | 1 | SEC ↗ |
| 38 | PRIMECAP Management ✦ | 31.47M | -15.6% | $3.88B | 3.1% | ▼ Trim | 5 | SEC ↗ |
| 39 | Geode Capital Management ✦ (passive) | 25.69M | +1.2% | $3.15B | 0.2% | ▲ Add | 5 | SEC ↗ |
| 40 | Geode Capital Management ✦ (passive) | 25.69M | +1.2% | $3.15B | 0.2% | ▲ Add | 5 | SEC ↗ |
| 41 | Norges Bank ✦ (passive) | 16.07M | +11.6% | $1.98B | 0.2% | ▲ Add | 5 | SEC ↗ |
| 42 | D. E. Shaw & Co. ✦ | 7.36M | +4426.5% | $906.60M | 1.0% | ▲ Add | 5 | SEC ↗ |
| 43 | D. E. Shaw & Co. ✦ | 7.36M | +4426.5% | $906.60M | 1.0% | ▲ Add | 5 | SEC ↗ |
| 44 | Wellington Management ✦ | 5.96M | +121.7% | $734.85M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 45 | Wellington Management ✦ | 5.96M | +121.7% | $734.85M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 46 | Wellington Management ✦ | 5.96M | +121.7% | $734.85M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 47 | Wellington Management ✦ | 5.96M | +121.7% | $734.85M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 48 | Wellington Management ✦ | 5.96M | +121.7% | $734.85M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 49 | Wellington Management ✦ | 5.96M | +121.7% | $734.85M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 50 | Wellington Management ✦ | 5.96M | +121.7% | $734.85M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 51 | T. Rowe Price ✦ | 5.34M | -15.8% | $658.63M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 52 | T. Rowe Price ✦ | 5.34M | -15.8% | $658.63M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 53 | Adage Capital Partners ✦ | 1.18M | +1.1% | $145.87M | 0.2% | ▲ Add | 5 | SEC ↗ |
| 54 | Citadel Advisors ✦ | 1.00M | -9.6% | $123.75M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 55 | Citadel Advisors ✦ | 1.00M | -9.6% | $123.75M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 56 | Appaloosa ✦ | 825.00K | +106.2% | $101.68M | 1.6% | ▲ Add | 5 | SEC ↗ |
| 57 | AQR Capital Management ✦ | 708.49K | +323.5% | $87.32M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 58 | AQR Capital Management ✦ | 708.49K | +323.5% | $87.32M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 59 | AQR Capital Management ✦ | 708.49K | +323.5% | $87.32M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 60 | AQR Capital Management ✦ | 708.49K | +323.5% | $87.32M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 61 | AQR Capital Management ✦ | 708.49K | +323.5% | $87.32M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 62 | AQR Capital Management ✦ | 708.49K | +323.5% | $87.32M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 63 | AQR Capital Management ✦ | 708.49K | +323.5% | $87.32M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 64 | AQR Capital Management ✦ | 708.49K | +323.5% | $87.32M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 65 | Two Sigma Investments ✦ | 524.82K | +1934.2% | $64.68M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 66 | Millennium Management ✦ | 323.35K | -83.8% | $39.85M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 67 | Gotham Asset Management ✦ | 270.70K | +102.7% | $33.36M | 0.2% | ▲ Add | 5 | SEC ↗ |
| 68 | Marshall Wace ✦ | 217.70K | -63.2% | $26.83M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 69 | Fisher Asset Management ✦ | 48.94K | -1.7% | $6.03M | 0.0% | ▼ Trim | 5 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Fairfax Financial | $6.95M | was 0.4% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1 holders, 202 shares, $0 reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer, Director · 258 sh · $255,314
Officer, Director · 144 sh · $138,116
Officer, Director · 823 sh · $790,417
Officer, Director · 1.59K sh · $1.53M
Officer, Director · 4.30K sh · $4.15M
Officer, Director · 4.23K sh · $4.07M
Officer, Director · 3.43K sh · $3.31M
Officer, Director · 2.93K sh · $2.83M
Officer, Director · 2.94K sh · $2.84M
Officer, Director · 5.25K sh · $5.08M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
This article was written by Doug Nathman, with research by his team at Trefis.
ForbesMicron stock was rising on Tuesday as new data showed how far memory-chip prices are set to rise this quarter.
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