Who owns Micron (MU)?
138 holders named in SEC filings declare between 49.8% and 69.6% of Micron's shares outstanding, as of Aug 21, 2026. The largest are Vanguard (9.7%), BlackRock (9.3%) and State Street (4.4%); the five largest hold 30.5% together. Another 3,759 institutions hold small positions worth 8.1%. At least 22.2% of the shares appear in no ownership filing: investors who do not have to report, mostly individuals. From Mar 31, 2026 to Jun 30, 2026, institutions that filed both quarters bought 6.8% and sold 7.8% of the shares, a net sale of 0.97%; 946 opened a position, 1,200 added, 1,391 reduced and 104 sold out. Biggest buyers: JPMorgan (+10.1M shares) and T. Rowe Price (+9.3M shares). Biggest sellers: Capital Group (-11.5M) and Fidelity (FMR) (-5.3M). Over time, 3,864 managers declared Micron in their 13F for Q2 2026, against 988 for Q4 2019: together at most 77.7% of the shares outstanding, against 78.1%.
| Holder | Filing | Share of capital | As of | Holding since (13F) |
|---|---|---|---|---|
| Vanguard | 13F | 9.7% | Jun 30, 2026 | Q4 2019 or earlier |
| BlackRock | 13F | 9.3% | Jun 30, 2026 | Q4 2019 or earlier |
| State Street | 13F | 4.4% | Jun 30, 2026 | Q4 2019 or earlier |
| Capital Group | 13F | 3.9% | Jun 30, 2026 | Q4 2019 or earlier |
| Invesco | 13F | 3.2% | Jun 30, 2026 | Q4 2019 or earlier |
| Geode Capital | 13F | 2.5% | Jun 30, 2026 | Q4 2019 or earlier |
| Fidelity (FMR) | 13F | 2.4% | Jun 30, 2026 | Q4 2019 or earlier |
| JPMorgan | 13F | 2.3% | Jun 30, 2026 | Q4 2019 or earlier |
| PRIMECAP MANAGEMENT CO/CA/ | 13F | 1.7% | Jun 30, 2026 | Q4 2019 or earlier |
| Morgan Stanley | 13F | 1.6% | Jun 30, 2026 | Q4 2019 or earlier |
| Goldman Sachs | 13F | 1.6% | Jun 30, 2026 | Q4 2019 or earlier |
| T. Rowe Price | 13F | 1.4% | Jun 30, 2026 | Q4 2019 or earlier |
| Norges Bank | 13F | 1.3% | Jun 30, 2026 | Q4 2019 or earlier |
| UBS | 13F | 1.3% | Jun 30, 2026 | Q4 2019 or earlier |
| Northern Trust | 13F | 0.96% | Jun 30, 2026 | Q4 2019 or earlier |
| Bank of America | 13F | 0.90% | Jun 30, 2026 | Q4 2019 or earlier |
| SG Americas Securities, LLC | 13F | 0.77% | Jun 30, 2026 | Q4 2019 or earlier |
| BNP PARIBAS FINANCIAL MARKETS | 13F | 0.72% | Jun 30, 2026 | Q4 2019 or earlier |
| Legal & General | 13F | 0.64% | Jun 30, 2026 | Q4 2019 or earlier |
| BNY | 13F | 0.63% | Jun 30, 2026 | Q4 2019 or earlier |
| Barclays | 13F | 0.62% | Jun 30, 2026 | Q4 2019 or earlier |
| Charles Schwab | 13F | 0.62% | Jun 30, 2026 | Q4 2019 or earlier |
| Dimensional | 13F | 0.60% | Jun 30, 2026 | Q4 2019 or earlier |
| CITIGROUP INC | 13F | 0.47% | Jun 30, 2026 | Q4 2019 or earlier |
| Wellington | 13F | 0.45% | Jun 30, 2026 | Q4 2019 or earlier |
Micron institutional ownership over time
| Quarter | 13F managers | Share of the company (upper bound) | Value declared | Held by stock pickers |
|---|---|---|---|---|
| Q4 2019 | 988 | 78.1% | $46.7B | 64.3% |
| Q4 2020 | 1,140 | 82.3% | $68.9B | 65.2% |
| Q4 2021 | 1,376 | 79.2% | $82.6B | 61.9% |
| Q4 2022 | 1,198 | 81.1% | $44.3B | 60.2% |
| Q4 2023 | 1,461 | 80.6% | $75.9B | 59.6% |
| Q4 2024 | 1,682 | 78.7% | $73.9B | 52.7% |
| Q4 2025 | 2,652 | 80.5% | $258.7B | 49.1% |
| Q2 2026 | 3,864 | 77.7% | $1.0T | 46.1% |
From SEC Form 13F, every quarter since the end of 2019, read like the current quarter: entities of a house summed, a value contradicting its share count set aside. The share of the company is an upper bound — two managers can declare the same shares — over the shares outstanding at that date.