Super Micro Computer (SMCI) insider trading
16 directors and officers declare holding shares of Super Micro Computer (SMCI), each in their own filing with the SEC. The largest is Liang Chiu-Chu Sara Liu (Director · 10% owner) with 65.8M shares, 10.0% of the company, worth $2.8B at the last close. The most recent move on file: Liang Chiu-Chu Sara Liu sold 100,000 shares at $45.02 on Oct 7, 2026. Of the 7 with a trade on file, 4 last bought and 3 last sold. Purchases and sales are as reported on Forms 3, 4 and 5 — the SEC counts private transactions too, and many large sales follow a plan arranged in advance. Holdings are never added up: two spouses often report the same shares, and a joint filing carries a fund's.
| Insider | Role | Shares | % of company | Value | Last trade on file | Filed |
|---|---|---|---|---|---|---|
| Liang Chiu-Chu Sara Liu | Director · 10% owner | 65.8M | 10.0% | $2.8B | sold 100,000 shares at $45.02 on Oct 7, 2026 | Oct 7, 2026 |
| Charles Liang | President and CEO · Director · 10% owner | 40.8M | 6.2% | $1.7B | sold 100,000 shares at $45.02 on Oct 7, 2026 | Oct 7, 2026 |
| Yih-Shyan Wally Liaw | Director | 15.3M | 2.3% | $639.6M | bought 3,400 shares on Feb 17, 2026 | Feb 17, 2026 |
| Tally C. Liu | Director | 288,738 | 0.04% | $12.1M | — | Aug 14, 2026 |
| Sherman Tuan | Director | 207,156 | 0.03% | $8.7M | — | Aug 14, 2026 |
| Jin Xiao | Sr. Corporate VP, Engineering | 194,639 | 0.03% | $8.1M | — | Aug 27, 2026 |
| David E. Weigand | SVP, Chief Financial Officer | 134,730 | 0.02% | $5.6M | — | Aug 27, 2026 |
| George Kao | SVP, OPERATIONS | 134,691 | 0.02% | $5.6M | sold 56,904 shares at $32.83 on Nov 24, 2025 | Nov 24, 2025 |
| Kenneth Cheung | SVP, Chief Accounting Officer | 63,772 | <0.01% | $2.7M | bought 2,250 shares on Aug 17, 2026 | Aug 17, 2026 |
| Judy L. Lin | Director | 60,323 | <0.01% | $2.5M | — | Aug 14, 2026 |
| Don W. Clegg | SVP, Worldwide Sales | 50,540 | <0.01% | $2.1M | bought 2,310 shares on May 10, 2026 | May 10, 2026 |
| Vikranth Malyala | SVP, Chief Business Officer | 47,877 | <0.01% | $2.0M | — | Aug 27, 2026 |
| Susan Mogensen | Director | 8,663 | <0.01% | $362,633.18 | — | Aug 14, 2026 |
| Scott Angel | Director | 7,055 | <0.01% | $295,322.30 | — | Aug 14, 2026 |
| Robert L. Blair | Director | 6,963 | <0.01% | $291,471.18 | — | Aug 14, 2026 |
| Matthew Thauberger | Chief Revenue Officer | 6,487 | <0.01% | $271,545.82 | bought 2,250 shares on Aug 17, 2026 | Aug 17, 2026 |
Each insider at Super Micro Computer
- Liang Chiu-Chu Sara Liu — Director · 10% owner
- Charles Liang — President and CEO · Director · 10% owner
- Yih-Shyan Wally Liaw — Director
- Tally C. Liu — Director
- Sherman Tuan — Director
- Jin Xiao — Sr. Corporate VP, Engineering
- David E. Weigand — SVP, Chief Financial Officer
- George Kao — SVP, OPERATIONS
- Kenneth Cheung — SVP, Chief Accounting Officer
- Judy L. Lin — Director
- Don W. Clegg — SVP, Worldwide Sales
- Vikranth Malyala — SVP, Chief Business Officer
No longer filing
- Daniel W. Fairfax — Director
What insiders bought and sold across AI stocks · All filings on sec.gov