SMCI insider buying and SEC filings, explained
Super Micro Computer, Inc. · CIK 1375365
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- Nasdaq, Nasdaq
- Industry (SIC)
- Electronic Computers
- State of incorporation
- CA
- Fiscal year end
- Jun 30
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$1.6M
Planned sales (10b5-1)
$24.4M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 7, 2026 | Planned (10b5-1) | Liang Chiu-Chu Sara Liu (Director and 10% owner) sold 100,000 shares at about $45.02 ($4.5M), marked as a 10b5-1 plan trade. Holdings down 23% to 337,506 shares. | SEC filing Filed Oct 9, 2026, 4:44 PM ET |
| Oct 7, 2026 | Planned (10b5-1) | Charles Liang (CEO and Director) sold 100,000 shares indirectly (by spouse) at about $45.02 ($4.5M), marked as a 10b5-1 plan trade. Holdings by spouse down 23% to 337,506 shares. | SEC filing Filed Oct 9, 2026, 4:44 PM ET |
| Sep 3–4, 2026 | Planned (10b5-1) | Charles Liang (CEO and Director) sold 200,000 shares indirectly (by spouse) between Sep 3 and Sep 4 at about $38.59 ($7.7M), marked as a 10b5-1 plan trade. Holdings by spouse down 31% to 437,506 shares. | SEC filing Filed Sep 8, 2026 |
| Sep 3–4, 2026 | Planned (10b5-1) | Liang Chiu-Chu Sara Liu (Director and 10% owner) sold 200,000 shares between Sep 3 and Sep 4 at about $38.59 ($7.7M), marked as a 10b5-1 plan trade. Holdings down 31% to 437,506 shares. | SEC filing Filed Sep 8, 2026 |
| Nov 26, 2025 | Sale | Sherman Tuan (Director) sold 48,630 shares at $33.00 ($1.6M). Holdings down 19% to 207,156 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 1, 2025 |
93 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
| Filed | Items | Tag | Source |
|---|---|---|---|
| Nov 3, 2026, 4:31 PM ET 8-K | Earnings released (Item 2.02) Other event (Item 8.01) | SEC filing |
Red flags are objective triggers only: the item or form filed, never an opinion.
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