Charles Liang - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 4, 2026
Charles Liang has filed 3 SEC Form 4 filings across 1 company in the last 90 days - selling. Lifetime open-market sales: $12.00M.
Profile
Charles Liang is President and CEO at Super Micro Computer, Inc. (SMCI). Liang has reported 16 insider filings with the SEC since 2024. The most recent filing was in July 2026.
| Role | President and CEO, Director, 10% Owner |
|---|---|
| Notability | 75/100 |
| Links | Wikipedia |
Board memberships
- Super Micro Computer, Inc.
Reported roles
- President and CEO
Awards & honors
- Founder of Super Micro Computer, Inc. (established 1993)
- Led the company as President and CEO, overseeing growth in server and storage solutions
- Built a global manufacturing and distribution network to serve data center and enterprise IT markets
Trading Pattern
InsiderAlpha's records for Charles Liang go back to 2024: 16 primary Form 4 filings, an average of 5.3 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Charles Liang has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- President and CEO, Director, 10% Owner at Super Micro Computer, Inc. (SMCI) - 16 filings, 2024 to 2026
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-02 | SMCI | Super Micro Computer, Inc. | F - Tax withholding / forfeiture | 148 | $27.65 | $4K |
| 2026-07-02 | SMCI | Super Micro Computer, Inc. | M - Option exercise | 273 | - | |
| 2026-07-02 | SMCI | Super Micro Computer, Inc. | F - Tax withholding / forfeiture | 276 | $27.65 | $8K |
| 2026-07-02 | SMCI | Super Micro Computer, Inc. | M - Option exercise | 510 | - | |
| 2026-07-02 | SMCI | Super Micro Computer, Inc. | F - Tax withholding / forfeiture | 448 | $27.65 | $12K |
| 2026-07-02 | SMCI | Super Micro Computer, Inc. | M - Option exercise | 830 | - | |
| 2026-05-28 | SMCI | Super Micro Computer, Inc. | G - Bona-fide gift | 340.0K | $0.00 | |
| 2026-05-12 | SMCI | Super Micro Computer, Inc. | F - Tax withholding / forfeiture | 2.2K | $35.37 | $78K |
| 2026-05-12 | SMCI | Super Micro Computer, Inc. | M - Option exercise | 4.1K | - | |
| 2026-05-12 | SMCI | Super Micro Computer, Inc. | F - Tax withholding / forfeiture | 1.1K | $35.37 | $40K |
| 2026-05-12 | SMCI | Super Micro Computer, Inc. | M - Option exercise | 2.1K | - | |
| 2026-03-03 | SMCI | Super Micro Computer, Inc. | M - Option exercise | 21.0K | $4.24 | $89K |
| 2026-02-19 | SMCI | Super Micro Computer, Inc. | F - Tax withholding / forfeiture | 2.1K | $30.11 | $63K |
| 2026-02-19 | SMCI | Super Micro Computer, Inc. | M - Option exercise | 3.6K | - | |
| 2026-02-12 | SMCI | Super Micro Computer, Inc. | F - Tax withholding / forfeiture | 1.3K | $33.33 | $42K |
| 2026-02-12 | SMCI | Super Micro Computer, Inc. | M - Option exercise | 2.1K | - | |
| 2025-12-01 | SMCI | Super Micro Computer, Inc. | G - Bona-fide gift | 5.0K | $0.00 | |
| 2025-11-12 | SMCI | Super Micro Computer, Inc. | F - Tax withholding / forfeiture | 1.1K | $40.19 | $46K |
| 2025-11-12 | SMCI | Super Micro Computer, Inc. | M - Option exercise | 2.1K | - | |
| 2025-11-03 | SMCI | Super Micro Computer, Inc. | F - Tax withholding / forfeiture | 3.2K | $50.37 | $163K |
Companies - Last 90 Days
- Super Micro Computer, Inc. (SMCI) - 3 filings, last 2026-07-02
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Charles Liang has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- George Kao - $3.62M of SMCI open-market activity in the last 12 months
- David E. Weigand - $2.14M of SMCI open-market activity in the last 12 months
- Sherman Tuan - $1.60M of SMCI open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Jorey Chernett
- John W. Childs
- Mahesh Choudhury
- Jonathan H. Cohen
- Ryan Cohen
- Charles K. Cohn
- Coliseum Capital Management, LLC
- Column Group IV GP, LP
Frequently Asked Questions
Who is Charles Liang?
Charles Liang is President and CEO at Super Micro Computer, Inc. (SMCI). Liang has reported 16 insider filings with the SEC since 2024. The most recent filing was in July 2026.…
How many SEC Form 4 filings has Charles Liang submitted recently?
3 primary Form 4 filings in the last 90 days, covering 1 company.
Has Charles Liang been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($12.00M) across all tracked filings.
Where can I see all of Charles Liang's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Charles Liang profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.