Super Micro Computer Inc Insider Trading

SMCI

Last 12 months

Insiders sold $27.9M and bought nothing on the open market.

88% of the selling was scheduled in advance under 10b5-1 plans. SVP, Operations George Kao sold $1.87M on Nov 24, 2025, 30% of their stake, outside a plan. The last open-market buy by an executive or director was in Feb 2024.

Net open-market

−$27.9M

0 buys · 6 sales

Under a 10b5-1 plan

88%

of the value sold

Insiders who bought / sold

0 / 4

executives and directors

Last open-market buy

Feb 2024

Feb 1, 2024

Get an email when SMCI's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Oct 7	Liang Chiu-Chu Sara Liu Director	Sold10b5-1 plan	100,000	$45.02	$4.5M	0.2%	Form 4
Oct 7	Charles Liang President and CEO	Sold10b5-1 plan	100,000	$45.02	$4.5M	0.4%	Form 4
Sep 3 – 4	Charles Liang President and CEO	Sold10b5-1 plan 3 parts	200,000	$38.59 average	$7.72M	0.3%	Form 4
Sep 3 – 4	Liang Chiu-Chu Sara Liu Director	Sold10b5-1 plan 3 parts	200,000	$38.59 average	$7.72M	0.3%	Form 4
Nov 26, 2025	Sherman Tuan Director	SoldNo plan	48,630	$33.00	$1.6M	19%	Form 4
Nov 24, 2025	George Kao SVP, Operations	SoldNo plan	56,904	$32.83	$1.87M	30%	Form 4
Sep 15, 2025	David E Weigand SVP, Chief Financial Officer	Sold10b5-1 plan	25,000	$45.14	$1.13M	20%	Form 4
Sep 3, 2025	David E Weigand SVP, Chief Financial Officer	Sold10b5-1 plan 2 parts	25,000	$40.29 average	$1.01M	20%	Form 4
Aug 22, 2025	George Kao SVP, Operations	SoldNo plan	40,000	$43.88	$1.76M	65%	Form 4
Jul 28, 2025	Charles Liang President and CEO	Sold10b5-1 plan	200,000	$60.00	$12M	0.3%	Form 4
Jul 28, 2025	Liang Chiu-Chu Sara Liu Director	Sold10b5-1 plan	200,000	$60.00	$12M	0.3%	Form 4
Jun 18, 2025	Charles Liang President and CEO	Sold10b5-1 plan	300,000	$45.00	$13.5M	0.4%	Form 4
Jun 18, 2025	Liang Chiu-Chu Sara Liu Director	Sold10b5-1 plan	300,000	$45.00	$13.5M	0.4%	Form 4
May 20, 2025	David E Weigand SVP, Chief Financial Officer	SoldNo plan	67,000	$44.02	$2.95M	43%	Form 4
May 14, 2025	Charles Liang President and CEO	SoldNo plan 2 parts	200,000	$44.95 average	$8.99M	0.3%	Form 4
May 14, 2025	Liang Chiu-Chu Sara Liu Director	SoldNo plan 2 parts	200,000	$45.02 average	$9M	0.3%	Form 4
May 14, 2025	George Kao SVP, Operations	SoldNo plan	28,400	$45.86	$1.3M	58%	Form 4
Feb 28, 2025	Robert L Blair Director	SoldNo plan 2 parts	19,460	$42.58 average	829K	100%	Form 4
Feb 26, 2025	Charles Liang President and CEO	SoldNo plan	46,293	$50.17	$2.32M	<0.1%	Form 4
Feb 26, 2025	Liang Chiu-Chu Sara Liu Director	SoldNo plan	46,293	$50.17	$2.32M	<0.1%	Form 4
Feb 26, 2025	George Kao SVP, Operations	SoldNo plan	71,720	$50.48	$3.62M	79%	Form 4

Oct 710b5-1 plan
Liang Chiu-Chu Sara Liu
Director · sold 100,000 at $45.02
$4.5M
0.2% of stake
Oct 710b5-1 plan
Charles Liang
President and CEO · sold 100,000 at $45.02
$4.5M
0.4% of stake
Sep 3 – 410b5-1 plan
Charles Liang
President and CEO · sold 200,000 at avg $38.59
$7.72M
0.3% of stake
Sep 3 – 410b5-1 plan
Liang Chiu-Chu Sara Liu
Director · sold 200,000 at avg $38.59
$7.72M
0.3% of stake
Nov 26, 2025No plan
Sherman Tuan
Director · sold 48,630 at $33.00
$1.6M
19% of stake
Nov 24, 2025No plan
George Kao
SVP, Operations · sold 56,904 at $32.83
$1.87M
30% of stake
Sep 15, 202510b5-1 plan
David E Weigand
SVP, Chief Financial Officer · sold 25,000 at $45.14
$1.13M
20% of stake
Sep 3, 202510b5-1 plan
David E Weigand
SVP, Chief Financial Officer · sold 25,000 at avg $40.29
$1.01M
20% of stake
Aug 22, 2025No plan
George Kao
SVP, Operations · sold 40,000 at $43.88
$1.76M
65% of stake
Jul 28, 202510b5-1 plan
Charles Liang
President and CEO · sold 200,000 at $60.00
$12M
0.3% of stake
Jul 28, 202510b5-1 plan
Liang Chiu-Chu Sara Liu
Director · sold 200,000 at $60.00
$12M
0.3% of stake
Jun 18, 202510b5-1 plan
Charles Liang
President and CEO · sold 300,000 at $45.00
$13.5M
0.4% of stake
Jun 18, 202510b5-1 plan
Liang Chiu-Chu Sara Liu
Director · sold 300,000 at $45.00
$13.5M
0.4% of stake
May 20, 2025No plan
David E Weigand
SVP, Chief Financial Officer · sold 67,000 at $44.02
$2.95M
43% of stake
May 14, 2025No plan
Charles Liang
President and CEO · sold 200,000 at avg $44.95
$8.99M
0.3% of stake
May 14, 2025No plan
Liang Chiu-Chu Sara Liu
Director · sold 200,000 at avg $45.02
$9M
0.3% of stake
May 14, 2025No plan
George Kao
SVP, Operations · sold 28,400 at $45.86
$1.3M
58% of stake
Feb 28, 2025No plan
Robert L Blair
Director · sold 19,460 at avg $42.58
829K
100% of stake
Feb 26, 2025No plan
Charles Liang
President and CEO · sold 46,293 at $50.17
$2.32M
<0.1% of stake
Feb 26, 2025No plan
Liang Chiu-Chu Sara Liu
Director · sold 46,293 at $50.17
$2.32M
<0.1% of stake
Feb 26, 2025No plan
George Kao
SVP, Operations · sold 71,720 at $50.48
$3.62M
79% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch SMCI, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Held by ETFs

SMCI is in 232 US ETFs. The largest of them, with SMCI's weight in each:

Spot a number that looks wrong? Check it in SMCI's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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