The largest holder of Super Micro Computer stock is Charles Liang10.23 %, with 66.2 million shares (10.23% of the company), worth about $2.47 billion as of September 25, 2026. The 10 largest holders together own 45.5%.
In Q2 2026, 913 institutional holdings reports listed 476.0 million shares worth $14.10 billion, up 40.8% in shares from Q1 2026.
Insiders reported 118 transactions in the last two years: 17 sales worth $98.63 million and no purchases. The newest one on file is from September 4, 2026 (Liu Liang Chiu-Chu Sara, Director and Beneficial Owner of more than 10% of a Class of Security).
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026); insider transactions on file through September 4, 2026.

2026Q2
| Holder | Shares | % of company | Value |
|---|---|---|---|
| Charles Liang10.23 % | 66.2 million | 10.23% | $2.5B |
| BlackRock Advisors LLC | 42.8 million | 6.62% | $1.6B |
| Vanguard Capital Management LLC | 36.4 million | 5.62% | $1.4B |
| Vanguard Portfolio Management LLC | 32.9 million | 5.08% | $1.2B |
| Jane Street Group LLC | 28.8 million | 4.45% | $1.1B |
| State Street Corporation | 24.6 million | 3.81% | $918.0M |
| UBS Financial Services, Inc. | 19.2 million | 2.98% | $717.0M |
| Geode Capital Management LLC | 15.5 million | 2.40% | $578.0M |
| Yih-Shyan Liaw2.362 % | 15.3 million | 2.36% | $570.0M |
| Goldman Sachs Asset Management LP | 12.6 million | 1.95% | $471.0M |
As of September 25, 2026.
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 913 | 476.0 million | $14.1B |
| Q1 2026 | 817 | 338.0 million | $7.7B |
| Q4 2025 | 866 | 332.0 million | $9.7B |
| Q3 2025 | 973 | 326.0 million | $15.6B |
| Q2 2025 | 946 | 309.0 million | $15.1B |
| Q1 2025 | 858 | 303.0 million | $10.4B |
| Q4 2024 | 797 | 310.0 million | $9.5B |
| Q3 2024 | 67 | 1.8 million | $632.0M |
Shares and value held by institutions that file quarterly holdings reports (options not included).
| Insider | Date | Title | Transaction | Value |
|---|---|---|---|---|
| Liu Liang Chiu-Chu Sara | Sep 4, 2026 | Director and Beneficial Owner of more than 10% of a Class of Security | Sale at price 36.60 - 40.00 per share. | $7.7M |
| Liang Charles | Sep 4, 2026 | Chief Executive Officer | Sale at price 36.60 - 40.00 per share. | $7.7M |
| Liang Charles | Aug 17, 2026 | Chief Executive Officer | -- | – |
| Liu Liang Chiu-Chu Sara | Aug 17, 2026 | Director and Beneficial Owner of more than 10% of a Class of Security | -- | – |
| Cheung Kenneth | Aug 17, 2026 | Officer | -- | – |
| Weigand David E | Aug 17, 2026 | Chief Financial Officer | -- | – |
| Xiao Jin | Aug 17, 2026 | Officer | -- | – |
| Malyala Vikranth | Aug 17, 2026 | Officer | -- | – |
| Thauberger Matthew | Aug 17, 2026 | Officer | -- | – |
| Liang Charles | Aug 10, 2026 | Chief Executive Officer | -- | – |
| Liu Liang Chiu-Chu Sara | Aug 10, 2026 | Director and Beneficial Owner of more than 10% of a Class of Security | -- | – |
| Cheung Kenneth | Aug 10, 2026 | Officer | -- | – |
Newest 12 of 118 insider transactions in the last two years.
Charles Liang10.23 %, with 10.23% of the company (as of September 25, 2026). Next: BlackRock Advisors LLC (6.62%) and Vanguard Capital Management LLC (5.62%).
913 institutional holdings reports listed Super Micro Computer shares in Q2 2026, 476.0 million shares in all worth $14.10 billion.
In the last two years insiders reported 17 sales and no purchases (118 transactions in all); the newest on file is from September 4, 2026.