MUMicron Technology
We are a global leader in semiconductor memory and storage, powering AI and compute-intensive applications from cloud to edge. 10-K, Item 1
- Employees
- 61,000
- Headquarters
- Boise, ID
- CEO
- Sanjay Mehrotra
- Next results
- around Dec 16, 2026
Who owns MU
78% of the shares are held by institutions that file 13Fs; the rest by everyone else.
13F filings are quarterly and up to 45 days old. Insider trades: Form 4 rows coded P (bought) and S (sold) at a price, not grants or plan exercises.
Institutional ownership 13F data can be up to 45 days old
Every 13F-HR filed for the quarter ending Jun 30, 2026, from SEC's Form 13F data sets. A 13F lists the long positions of managers with more than $100M in US stocks. Two managers can report the same shares, so totals can count some shares twice.
| Holder | Shares | Value | % of company | From Mar 31, 2026 |
|---|---|---|---|---|
| BlackRock, Inc. | 104.83M | $121.0B | 9.27% | Added +1.6% |
| VANGUARD CAPITAL MANAGEMENT LLC | 73.66M | $85.0B | 6.51% | Added +0.7% |
| STATE STREET CORP | 50.08M | $57.8B | 4.43% | Reduced -4.1% |
| Invesco Ltd. | 36.32M | $41.9B | 3.21% | Added +1.8% |
| Capital World Investors | 29.47M | $34.0B | 2.60% | Reduced -29.9% |
| GEODE CAPITAL MANAGEMENT, LLC | 27.71M | $31.9B | 2.45% | Added +1.0% |
| FMR LLC | 26.72M | $30.8B | 2.36% | Reduced -16.6% |
| JPMORGAN CHASE & CO | 25.84M | $29.6B | 2.28% | Added +63.8% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 24.66M | $28.5B | 2.18% | Added +7.1% |
| PRIMECAP MANAGEMENT CO/CA/ | 19.22M | $22.2B | 1.70% | Reduced -12.1% |
| MORGAN STANLEY | 18.47M | $21.3B | 1.63% | Added +9.7% |
| GOLDMAN SACHS GROUP INC | 18.09M | $20.9B | 1.60% | Added +44.0% |
| NORGES BANK | 15.18M | $17.5B | 1.34% | New |
| PRICE T ROWE ASSOCIATES INC /MD/ | 14.17M | $16.4M | 1.25% | Added +165.3% |
| NORTHERN TRUST CORP | 10.81M | $12.5B | 0.96% | Added +3.9% |
| Capital International Investors | 10.38M | $12.0B | 0.92% | Added +16.3% |
| BANK OF AMERICA CORP /DE/ | 10.17M | $11.7B | 0.90% | Added +26.6% |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 8.90M | $10.3B | 0.79% | Reduced -7.3% |
| SG Americas Securities, LLC | 8.67M | $10.0M | 0.77% | Reduced -18.1% |
| BNP PARIBAS FINANCIAL MARKETS | 8.10M | $9.3B | 0.72% | Added +73.5% |
| Legal & General Group Plc | 7.28M | $8.4B | 0.64% | Reduced -1.2% |
| Bank of New York Mellon Corp | 7.15M | $8.2B | 0.63% | Reduced -4.0% |
| BARCLAYS PLC | 7.01M | $8.1B | 0.62% | Reduced -9.8% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 6.97M | $8.0B | 0.62% | Held |
| DIMENSIONAL FUND ADVISORS LP | 6.77M | $7.8B | 0.60% | Reduced -2.8% |
Bought the most shares
- NORGES BANK +15.18M, new
- JPMORGAN CHASE & CO +10.06M
- PRICE T ROWE ASSOCIATES INC /MD/ +8.83M
- GOLDMAN SACHS GROUP INC +5.53M
- Situational Awareness LP +4.81M
- BNP PARIBAS FINANCIAL MARKETS +3.43M
- NOMURA HOLDINGS INC +3.19M
- Jupiter Topco LLC +3.06M, new
- COATUE MANAGEMENT LLC +2.98M
- BANK OF AMERICA CORP /DE/ +2.14M
Sold the most shares
- Capital World Investors -12.58M
- FMR LLC -5.34M
- CITADEL ADVISORS LLC -4.00M
- JANUS HENDERSON GROUP PLC -3.88M, sold out
- D. E. Shaw & Co., Inc. -2.89M
- PRIMECAP MANAGEMENT CO/CA/ -2.66M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP -2.19M
- STATE STREET CORP -2.16M
- Alyeska Investment Group, L.P. -1.97M
- RENAISSANCE TECHNOLOGIES LLC -1.95M
Superinvestors holding MU 13F data can be up to 45 days old
From the latest 13F-HR of each of the investors followed on Investors. A 13F shows holdings at the end of a quarter and is filed up to 45 days later.
| Investor | Quarter | Shares | Value | % of portfolio | Last quarter |
|---|---|---|---|---|---|
| Philippe Laffont Coatue Management | Jun 30, 2026 | 3.14M | $3.6B | 7.51% | Added ×19 |
| David Tepper Appaloosa | Jun 30, 2026 | 975K | $1.1B | 16.51% | Reduced -41.4% |
| Ruane Cunniff Ruane, Cunniff & Goldfarb | Jun 30, 2026 | 2K | $2.5M | 0.04% | Held |
| Bill Nygren Harris Associates (Oakmark) | Jun 30, 2026 | 180 | $208K | 0.00% | New |
Sold out last quarter: Stanley Druckenmiller
13D filings: owners of more than 5% who may push for change
No Schedule 13D about MU in the last year.
Work on MU in a spreadsheet:
Excel workbook (a sheet per section, ten years by column, charts, links to the filings) ·
CSV.
For a Google Sheet that stays up to date, paste =IMPORTDATA("https://tickdelta.com/company/MU/export.csv") into a cell.