SMCI (Super Micro Computer, Inc. Common Stock)
Insider Trading Activity
Every open-market purchase and sale reported by SMCI officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-19 | DAVID E WEIGAND | SVP, Chief Financial Officer | MIXED | — | — |
| 2026-08-19 | Charles Liang | President and CEO | MIXED | — | — |
| 2026-08-19 | Jin Xiao | Sr. Corporate VP, Engineering | MIXED | — | — |
| 2026-08-19 | Kenneth Cheung | SVP, Chief Accounting Officer | MIXED | — | — |
| 2026-08-19 | Vikranth Malyala | SVP, Chief Business Officer | MIXED | — | — |
| 2026-08-19 | Liang Chiu-Chu Sara Liu | Director | MIXED | — | — |
| 2026-08-19 | Matthew Thauberger | Chief Revenue Officer | MIXED | — | — |
| 2026-08-18 | Scott Angel | Director | A | — | — |
| 2026-08-18 | ROBERT L BLAIR | Director | A | — | — |
| 2026-08-18 | Susan Mogensen | Director | A | — | — |
| 2026-08-18 | Matthew Thauberger | Chief Revenue Officer | A | — | — |
| 2026-08-18 | TALLY C LIU | Director | A | — | — |
| 2026-08-18 | Judy L. Lin | Director | A | — | — |
| 2026-08-18 | SHERMAN TUAN | Director | A | — | — |
| 2026-08-12 | Jin Xiao | Sr. Corporate VP, Engineering | MIXED | — | — |
| 2026-08-12 | Matthew Thauberger | — | MIXED | — | — |
| 2026-08-12 | Kenneth Cheung | SVP, Chief Accounting Officer | MIXED | — | — |
| 2026-08-12 | DAVID E WEIGAND | SVP, Chief Financial Officer | MIXED | — | — |
| 2026-08-12 | Liang Chiu-Chu Sara Liu | Director | MIXED | — | — |
| 2026-08-12 | Vikranth Malyala | SVP, Chief Business Officer | MIXED | — | — |
| 2026-08-12 | Charles Liang | President and CEO | MIXED | — | — |
| 2026-07-02 | Susan Mogensen | Director | M | — | — |
| 2026-07-02 | TALLY C LIU | Director | M | — | — |
| 2026-07-02 | DAVID E WEIGAND | SVP, Chief Financial Officer | MIXED | — | — |
| 2026-07-02 | Judy L. Lin | Director | M | — | — |
| 2026-07-02 | Vikranth Malyala | SVP, Chief Business Officer | MIXED | — | — |
| 2026-07-02 | ROBERT L BLAIR | Director | M | — | — |
| 2026-07-02 | Charles Liang | President and CEO | MIXED | — | — |
| 2026-07-02 | Liang Chiu-Chu Sara Liu | Director | MIXED | — | — |
| 2026-07-02 | Scott Angel | Director | M | — | — |
| 2026-06-12 | Kenneth Cheung | SVP, Chief Accounting Officer | A | — | — |
| 2026-05-28 | Liang Chiu-Chu Sara Liu | Director | G | — | — |
| 2026-05-28 | Charles Liang | President and CEO | G | — | — |
| 2026-05-12 | Kenneth Cheung | SVP, Chief Accounting Officer | MIXED | — | — |
| 2026-05-12 | Charles Liang | President and CEO | MIXED | — | — |
| 2026-05-12 | Liang Chiu-Chu Sara Liu | Director | MIXED | — | — |
| 2026-05-12 | Jin Xiao | Sr. Corporate VP, Engineering | MIXED | — | — |
| 2026-05-12 | DON W CLEGG | SVP, Worldwide Sales | MIXED | — | — |
| 2026-05-12 | DAVID E WEIGAND | SVP, Chief Financial Officer | MIXED | — | — |
| 2026-03-12 | Jin Xiao | Sr. Corporate VP, Engineering | — | — | — |
| 2026-03-03 | Liang Chiu-Chu Sara Liu | Director | M | — | — |
| 2026-03-03 | Charles Liang | President and CEO | M | — | — |
| 2026-02-19 | DAVID E WEIGAND | SVP, Chief Financial Officer | MIXED | — | — |
| 2026-02-19 | Jin Xiao | Sr. Corporate VP, Engineering | MIXED | — | — |
| 2026-02-19 | DON W CLEGG | SVP, Worldwide Sales | MIXED | — | — |
| 2026-02-19 | Charles Liang | President and CEO | MIXED | — | — |
| 2026-02-19 | Liang Chiu-Chu Sara Liu | Director | MIXED | — | — |
| 2026-02-19 | Kenneth Cheung | SVP, Chief Accounting Officer | MIXED | — | — |
| 2026-02-19 | Yih-Shyan Wally Liaw | Director | MIXED | — | — |
| 2026-02-12 | Liang Chiu-Chu Sara Liu | Director | MIXED | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | President and CEO | 41,063,626 | — |
| — | Director | 25,970,026 | — |
| — | Director | 15,278,712 | — |
| — | Director | 6,136,000 | — |
| — | Chief Operating Officer | 1,746,940 | — |
| — | 10%+ Owner | 1,594,360 | — |
| — | Director | 429,170 | — |
| — | Director | 298,890 | — |
| — | Director | 288,738 | — |
| — | Director | 216,000 | — |
| — | Director | 207,156 | — |
| — | Director | 198,330 | — |
| — | Sr. Corporate VP, Engineering | 194,639 | — |
| — | Director | 180,000 | — |
| — | SVP, Chief Financial Officer | 134,730 | — |
| — | SVP, OPERATIONS | 134,691 | — |
| — | Chief Financial Officer | 91,700 | — |
| — | Director | 90,000 | — |
| — | SVP, Chief Accounting Officer | 64,580 | — |
| — | Director | 60,323 | — |
| — | SVP, Chief Business Officer | 50,930 | — |
| — | SVP, Worldwide Sales | 49,713 | — |
| — | VP Worldwide Sales | 15,600 | — |
| — | Chief Financial Officer | 12,200 | — |
| — | Director | 8,663 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the SMCI quote page; the site-wide leaderboard is on the insider transactions hub.