SMCI
Supermicro insider trading
Information Technology · Heavy selling
Close · Oct 5, 2026
$43.19
-20.9% over 12 months
Share price and insider trades
SMCI closeInsider buyInsider sale
Bought, 12 months$0
Sold, 12 months$18.9M
Insiders buying0
Insiders selling4
Valuation, profit and volume
P/E (trailing)n/aSector median 32.1
Market value—
Profit margin—Revenue growth —
Volume vs. 50-day0.6×Last 5 sessions
Insiders' paper profit—On all tracked purchases —
Summary
Over the past 12 months, 0 Supermicro insiders reported open-market purchases totaling $0, while 4 insiders reported sales totaling $18.9M. 6 of 8 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales. 185 grants, option exercises and tax withholdings are not shown.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Sep 8SEC | Liang Chiu-chu Sara LiuDirector | Sell Plan | 100,000 | $40.00 | $4.0M | +8.0% | — |
| Sep 8SEC | Charles LiangCEO, President | Sell Plan | 100,000 | $40.00 | $4.0M | +8.0% | — |
| Sep 8SEC | Liang Chiu-chu Sara LiuDirector | Sell Plan | 57,435 | $37.62 | $2.2M | +14.8% | — |
| Sep 8SEC | Charles LiangCEO, President | Sell Plan | 57,435 | $37.62 | $2.2M | +14.8% | — |
| Sep 8SEC | Liang Chiu-chu Sara LiuDirector | Sell Plan | 42,565 | $36.60 | $1.6M | +18.0% | — |
| Sep 8SEC | Charles LiangCEO, President | Sell Plan | 42,565 | $36.60 | $1.6M | +18.0% | — |
| Dec 1SEC | Sherman TuanDirector | Sell | 48,630 | $33.00 | $1.6M | +30.9% | — |
| Nov 26SEC | George KaoSvp, Operations | Sell | 56,904 | $32.83 | $1.9M | +31.6% | — |
Insiders at Supermicro
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Liang Chiu-chu Sara LiuDirector | — | $7.7M | Sep 8, 2026 | — |
| Charles LiangCEO, President | — | $7.7M | Sep 8, 2026 | — |
| George KaoSvp, Operations | — | $1.9M | Nov 26, 2025 | — |
| Sherman TuanDirector | — | $1.6M | Dec 1, 2025 | — |
| David E WeigandCFO | — | — | Aug 19, 2026 | — |
| Vikranth MalyalaSvp, Chief Business Officer | — | — | Aug 19, 2026 | — |
| Jin XiaoSr. Corporate Vp, Engineering | — | — | Aug 19, 2026 | — |
| Matthew ThaubergerChief Revenue Officer | — | — | Aug 19, 2026 | — |
| Kenneth CheungSvp, Chief Accounting Officer | — | — | Aug 19, 2026 | — |
| Robert L BlairDirector | — | — | Jul 2, 2026 | — |
| Tally C LiuDirector | — | — | Jul 2, 2026 | — |
| Judy L. LinDirector | — | — | Jul 2, 2026 | — |
| Susan MogensenDirector | — | — | Jul 2, 2026 | — |
| Scott AngelDirector | — | — | Jul 2, 2026 | — |
| Don W CleggSvp, Worldwide Sales | — | — | May 12, 2026 | — |
| Yih-shyan Wally LiawDirector | — | — | Feb 19, 2026 | — |
Insider activity at other Information Technology companies
Same sector, ranked by insider buying in the last 90 days.
Common questions about SMCI insiders
Are Supermicro insiders buying SMCI stock?
In the past 12 months, 0 insiders reported open-market purchases of SMCI worth $0.
Are Supermicro insiders selling SMCI stock?
4 insiders reported sales worth $18.9M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.