Massivemarkets

SEC Form 4

Super Micro Computer, Inc. (SMCI) insider trading

In the 12 months to Oct 24, 2026, 4 SMCI insiders reported open-market sales of $27.9M across 6 filings; no open-market purchases were filed.

Latest filing · Last 12 months · Source: SEC EDGAR · How we count

Open-market sales
$27.9M
6 filings · 4 insiders
Open-market purchases
$0
0 filings
Pre-arranged sales (10b5-1)
4 of 6
$24.4M of $27.9M sold (88%)

Who traded SMCI, and when

  • Sale
  • Sale, pre-arranged (10b5-1)

SMCI daily close from Oct 24, 2025 to Oct 23, 2026, between $20.53 and $52.69, last $32.94. 6 sale and 0 purchase filings by 4 insiders, marked at their filing dates. Charles Liang, President and CEO: sold $12.2M across 2 filings, first filed Sep 8, 2026, last Oct 9, 2026. Liang Chiu-Chu Sara Liu, Director: sold $12.2M across 2 filings, first filed Sep 8, 2026, last Oct 9, 2026. George Kao, SVP, OPERATIONS: sold $1.9M across 1 filing, first filed Nov 26, 2025, last Nov 26, 2025. Sherman Tuan, Director: sold $1.6M across 1 filing, first filed Dec 1, 2025, last Dec 1, 2025.

Largest mark · tap a row for others

Charles Liang · President and CEO

Sale $7,718,584

200,000 shares at $38.59 avg

Filed Sep 8, 2026 · traded Sep 3

Pre-arranged (10b5-1) · close on filing date $40.26

SMCI daily closelast $32.94

Charles Liang · President and CEO

$12.2M sold

Liang Chiu-Chu Sara Liu · Director

$12.2M sold

George Kao · SVP, OPERATIONS

$1.9M sold

Sherman Tuan · Director

$1.6M sold
One row per insider; marks sit at the SEC filing date, sized by dollar value.

Has Super Micro Computer, Inc.'s CEO sold stock?

Yes. Charles Liang (CEO) sold 300,000 shares ($12.2M) between Sep 2026 and Oct 2026, all under a pre-arranged 10b5-1 plan.

Open-market trades

6 filings in the last 12 months
InsiderRoleSoldBoughtFilingsPre-arranged (10b5-1)Last filed
Charles LiangPresident and CEO$12.2M—2100% of sales
Liang Chiu-Chu Sara LiuDirector$12.2M—2100% of sales
George KaoSVP, OPERATIONS$1.9M—1—
Sherman TuanDirector$1.6M—1—
Other insider activity (not market trades) · 185 records
  • Option exercises97 records
  • Tax withholding84 records
  • Gifts4 records

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

Build this yourself

This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

Agent prompt

Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for SMCI every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

How to read this page

Open-market purchase or sale
A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
Pre-arranged (10b5-1)
The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.