Who owns Super Micro Computer (SMCI)?
102 holders named in SEC filings declare between 62.3% and 76.4% of Super Micro Computer's shares outstanding, as of Sep 4, 2026. The largest are Vanguard (11.4%), Charles Liang (10.1%) and BlackRock (7.3%); the five largest hold 36.8% together. Another 661 institutions hold small positions worth 3.9%. At least 19.6% 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 20.6% and sold 5.0% of the shares, a net purchase of 15.6%; 127 opened a position, 289 added, 230 reduced and 73 sold out. Biggest buyers: Jane Street (+24.4M shares) and Two Sigma (+8.9M shares). Biggest sellers: Defiance ETFs, LLC (-6.2M) and WELLS FARGO & COMPANY/MN (-4.3M). Schedule 13D/G filings since Mar 31, 2026: Capital Ventures International cut its stake to 5.1% on Jun 30, 2026 and JANE STREET GROUP, LLC cut its stake to 7.5% on Jun 30, 2026. Directors and officers, from their latest Form 4: Charles Liang (10.1%) and Yih-Shyan Wally Liaw (2.3%). Over time, 753 managers declared Super Micro Computer in their 13F for Q2 2026, against 11 for Q4 2019: together at most 74.2% of the shares outstanding, against 21.4%.
| Holder | Filing | Share of capital | As of | Holding since (13F) |
|---|---|---|---|---|
| Vanguard | 13F | 11.4% | Jun 30, 2026 | Q2 2020 |
| Charles Liang | Form 4 | 10.1% | Sep 4, 2026 | — |
| BlackRock | 13F | 7.3% | Jun 30, 2026 | Q1 2020 |
| Jane Street | 13F | 4.4% | Jun 30, 2026 | Q2 2022 |
| State Street | 13F | 3.7% | Jun 30, 2026 | Q2 2020 |
| UBS | 13F | 3.6% | Jun 30, 2026 | Q1 2020 |
| Geode Capital | 13F | 2.4% | Jun 30, 2026 | Q1 2020 |
| Yih-Shyan Wally Liaw | Form 4 | 2.3% | Feb 17, 2026 | — |
| Invesco | 13F | 1.8% | Jun 30, 2026 | Q4 2020 |
| Goldman Sachs | 13F | 1.7% | Jun 30, 2026 | Q1 2020 |
| Two Sigma | 13F | 1.5% | Jun 30, 2026 | Q2 2022 |
| Morgan Stanley | 13F | 1.4% | Jun 30, 2026 | Q1 2020 |
| BNP PARIBAS FINANCIAL MARKETS | 13F | 1.2% | Jun 30, 2026 | Q4 2024 |
| Renaissance Technologies | 13F | 1.0% | Jun 30, 2026 | Q1 2026 |
| Norges Bank | 13F | 0.96% | Jun 30, 2026 | Q2 2023 |
| Point72 | 13F | 0.72% | Jun 30, 2026 | Q4 2025 |
| Charles Schwab | 13F | 0.72% | Jun 30, 2026 | Q2 2020 |
| Marshall Wace | 13F | 0.70% | Jun 30, 2026 | Q4 2022 |
| Northern Trust | 13F | 0.70% | Jun 30, 2026 | Q1 2020 |
| Bank of America | 13F | 0.68% | Jun 30, 2026 | Q1 2020 |
| Ghisallo Capital Management LLC | 13F | 0.66% | Jun 30, 2026 | Q2 2026 |
| Dimensional | 13F | 0.54% | Jun 30, 2026 | Q4 2024 |
| Citadel | 13F | 0.54% | Jun 30, 2026 | Q1 2023 |
| NATIONAL BANK OF CANADA /FI/ | 13F | 0.51% | Jun 30, 2026 | Q2 2022 |
| IMC-Chicago, LLC | 13F | 0.51% | Jun 30, 2026 | Q4 2025 |
Super Micro Computer institutional ownership over time
| Quarter | 13F managers | Share of the company (upper bound) | Value declared | Held by stock pickers |
|---|---|---|---|---|
| Q4 2019 | 11 | 21.4% | $269.3M | 100.0% |
| Q4 2020 | 135 | 70.1% | $1.1B | 71.8% |
| Q4 2021 | 156 | 69.9% | $1.6B | 68.5% |
| Q4 2022 | 291 | 80.0% | $3.5B | 61.9% |
| Q4 2023 | 624 | 72.6% | $11.0B | 48.0% |
| Q4 2024 | 685 | 53.0% | $9.5B | 33.2% |
| Q4 2025 | 742 | 55.2% | $9.7B | 31.7% |
| Q2 2026 | 753 | 74.2% | $13.1B | 33.8% |
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.