SMCI

insider transactions

Super Micro Computer, Inc. — buys & sells by directors, officers and 10% owners (SEC Form 4).

30D 90D 1Y

No open-market buys or sells this period. The trades below are grants, option exercises and gifts, which carry no market price.

Net buy / sell volume

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions

Other·G
May 26, 26

Liang Chiu-Chu Sara Liu

Director, 10% Owner

$0

340.0K sh

Own -1%
Other·G
May 26, 26

Charles Liang KEY

President and CEO

$0

340.0K sh

Own -1%
Exercise·M
May 10, 26

Jin Xiao

Sr. Corporate VP, Engineering

$0

4.1K sh

Own +50%
Exercise·M
May 10, 26

Jin Xiao

Sr. Corporate VP, Engineering

$0

2.0K sh

Own +33%
Other·F
May 10, 26

Jin Xiao

Sr. Corporate VP, Engineering

$52.0K

1.5K sh · $35.37

Own -1%
Exercise·M
May 10, 26

Jin Xiao

Sr. Corporate VP, Engineering

—

4.1K sh

Own +2%
Other·F
May 10, 26

Jin Xiao

Sr. Corporate VP, Engineering

$25.0K

707 sh · $35.37

Own -0%
Exercise·M
May 10, 26

Jin Xiao

Sr. Corporate VP, Engineering

—

2.0K sh

Own +1%
Exercise·M
May 10, 26

David E Weigand KEY

SVP, Chief Financial Officer

$0

1.5K sh

Own +14%
Exercise·M
May 10, 26

David E Weigand KEY

SVP, Chief Financial Officer

$0

2.7K sh

Own New
Other·F
May 10, 26

David E Weigand KEY

SVP, Chief Financial Officer

$18.9K

535 sh · $35.37

Own -0%
Exercise·M
May 10, 26

David E Weigand KEY

SVP, Chief Financial Officer

—

1.5K sh

Own +1%
Other·F
May 10, 26

David E Weigand KEY

SVP, Chief Financial Officer

$34.0K

962 sh · $35.37

Own -1%
Exercise·M
May 10, 26

David E Weigand KEY

SVP, Chief Financial Officer

—

2.7K sh

Own +2%
Exercise·M
May 10, 26

Liang Chiu-Chu Sara Liu

Director, 10% Owner

$0

4.1K sh

Own +50%
Exercise·M
May 10, 26

Liang Chiu-Chu Sara Liu

Director, 10% Owner

$0

2.1K sh

Own +33%
Other·F
May 10, 26

Liang Chiu-Chu Sara Liu

Director, 10% Owner

$78.2K

2.2K sh · $35.37

Own -0%
Exercise·M
May 10, 26

Liang Chiu-Chu Sara Liu

Director, 10% Owner

—

4.1K sh

Own +1%
Other·F
May 10, 26

Liang Chiu-Chu Sara Liu

Director, 10% Owner

$40.5K

1.1K sh · $35.37

Own -0%
Exercise·M
May 10, 26

Liang Chiu-Chu Sara Liu

Director, 10% Owner

—

2.1K sh

Own +0%
Exercise·M
May 10, 26

Charles Liang KEY

President and CEO

$0

4.1K sh

Own +50%
Exercise·M
May 10, 26

Charles Liang KEY

President and CEO

$0

2.1K sh

Own +33%
Other·F
May 10, 26

Charles Liang KEY

President and CEO

$78.2K

2.2K sh · $35.37

Own -0%
Exercise·M
May 10, 26

Charles Liang KEY

President and CEO

—

4.1K sh

Own +1%
Other·F
May 10, 26

Charles Liang KEY

President and CEO

$40.5K

1.1K sh · $35.37

Own -0%
Exercise·M
May 10, 26

Charles Liang KEY

President and CEO

—

2.1K sh

Own +0%
Exercise·M
May 10, 26

Kenneth Cheung

SVP, Chief Accounting Officer

$0

1.2K sh

Own +25%
Other·F
May 10, 26

Kenneth Cheung

SVP, Chief Accounting Officer

$15.9K

449 sh · $35.37

Own -1%
Exercise·M
May 10, 26

Kenneth Cheung

SVP, Chief Accounting Officer

—

1.2K sh

Own +2%
Exercise·M
May 10, 26

Don W Clegg

SVP, Worldwide Sales

$0

1.3K sh

Own +14%
Exercise·M
May 10, 26

Don W Clegg

SVP, Worldwide Sales

$0

1.0K sh

Own New
Other·F
May 10, 26

Don W Clegg

SVP, Worldwide Sales

$16.4K

463 sh · $35.37

Own -1%
Exercise·M
May 10, 26

Don W Clegg

SVP, Worldwide Sales

—

1.3K sh

Own +3%
Other·F
May 10, 26

Don W Clegg

SVP, Worldwide Sales

$12.9K

366 sh · $35.37

Own -1%
Exercise·M
May 10, 26

Don W Clegg

SVP, Worldwide Sales

—

1.0K sh

Own +2%
Grant·A
May 8, 26

David E Weigand KEY

SVP, Chief Financial Officer

$0

13.8K sh

Own New
Grant·A
May 8, 26

David E Weigand KEY

SVP, Chief Financial Officer

$0

30.6K sh

Own New
Grant·A
May 8, 26

Don W Clegg

SVP, Worldwide Sales

$0

5.6K sh

Own New
Grant·A
May 8, 26

Don W Clegg

SVP, Worldwide Sales

$0

12.4K sh

Own New

Date▾	Insider	Role	Type	Shares	Own Δ	Price	Value
May 26, 2026	Liang Chiu-Chu Sara Liu	Director, 10% Owner	Other G	340.0K	-1%	—	$0
May 26, 2026	Charles Liang KEY	President and CEO	Other G	340.0K	-1%	—	$0
May 10, 2026	Jin Xiao	Sr. Corporate VP, Engineering	Exercise M	4.1K	+50%	—	$0
May 10, 2026	Jin Xiao	Sr. Corporate VP, Engineering	Exercise M	2.0K	+33%	—	$0
May 10, 2026	Jin Xiao	Sr. Corporate VP, Engineering	Other F	1.5K	-1%	$35.37	$52.0K
May 10, 2026	Jin Xiao	Sr. Corporate VP, Engineering	Exercise M	4.1K	+2%	—	—
May 10, 2026	Jin Xiao	Sr. Corporate VP, Engineering	Other F	707	-0%	$35.37	$25.0K
May 10, 2026	Jin Xiao	Sr. Corporate VP, Engineering	Exercise M	2.0K	+1%	—	—
May 10, 2026	David E Weigand KEY	SVP, Chief Financial Officer	Exercise M	1.5K	+14%	—	$0
May 10, 2026	David E Weigand KEY	SVP, Chief Financial Officer	Exercise M	2.7K	New	—	$0
May 10, 2026	David E Weigand KEY	SVP, Chief Financial Officer	Other F	535	-0%	$35.37	$18.9K
May 10, 2026	David E Weigand KEY	SVP, Chief Financial Officer	Exercise M	1.5K	+1%	—	—
May 10, 2026	David E Weigand KEY	SVP, Chief Financial Officer	Other F	962	-1%	$35.37	$34.0K
May 10, 2026	David E Weigand KEY	SVP, Chief Financial Officer	Exercise M	2.7K	+2%	—	—
May 10, 2026	Liang Chiu-Chu Sara Liu	Director, 10% Owner	Exercise M	4.1K	+50%	—	$0
May 10, 2026	Liang Chiu-Chu Sara Liu	Director, 10% Owner	Exercise M	2.1K	+33%	—	$0
May 10, 2026	Liang Chiu-Chu Sara Liu	Director, 10% Owner	Other F	2.2K	-0%	$35.37	$78.2K
May 10, 2026	Liang Chiu-Chu Sara Liu	Director, 10% Owner	Exercise M	4.1K	+1%	—	—
May 10, 2026	Liang Chiu-Chu Sara Liu	Director, 10% Owner	Other F	1.1K	-0%	$35.37	$40.5K
May 10, 2026	Liang Chiu-Chu Sara Liu	Director, 10% Owner	Exercise M	2.1K	+0%	—	—
May 10, 2026	Charles Liang KEY	President and CEO	Exercise M	4.1K	+50%	—	$0
May 10, 2026	Charles Liang KEY	President and CEO	Exercise M	2.1K	+33%	—	$0
May 10, 2026	Charles Liang KEY	President and CEO	Other F	2.2K	-0%	$35.37	$78.2K
May 10, 2026	Charles Liang KEY	President and CEO	Exercise M	4.1K	+1%	—	—
May 10, 2026	Charles Liang KEY	President and CEO	Other F	1.1K	-0%	$35.37	$40.5K
May 10, 2026	Charles Liang KEY	President and CEO	Exercise M	2.1K	+0%	—	—
May 10, 2026	Kenneth Cheung	SVP, Chief Accounting Officer	Exercise M	1.2K	+25%	—	$0
May 10, 2026	Kenneth Cheung	SVP, Chief Accounting Officer	Other F	449	-1%	$35.37	$15.9K
May 10, 2026	Kenneth Cheung	SVP, Chief Accounting Officer	Exercise M	1.2K	+2%	—	—
May 10, 2026	Don W Clegg	SVP, Worldwide Sales	Exercise M	1.3K	+14%	—	$0
May 10, 2026	Don W Clegg	SVP, Worldwide Sales	Exercise M	1.0K	New	—	$0
May 10, 2026	Don W Clegg	SVP, Worldwide Sales	Other F	463	-1%	$35.37	$16.4K
May 10, 2026	Don W Clegg	SVP, Worldwide Sales	Exercise M	1.3K	+3%	—	—
May 10, 2026	Don W Clegg	SVP, Worldwide Sales	Other F	366	-1%	$35.37	$12.9K
May 10, 2026	Don W Clegg	SVP, Worldwide Sales	Exercise M	1.0K	+2%	—	—
May 8, 2026	David E Weigand KEY	SVP, Chief Financial Officer	Grant A	13.8K	New	—	$0
May 8, 2026	David E Weigand KEY	SVP, Chief Financial Officer	Grant A	30.6K	New	—	$0
May 8, 2026	Don W Clegg	SVP, Worldwide Sales	Grant A	5.6K	New	—	$0
May 8, 2026	Don W Clegg	SVP, Worldwide Sales	Grant A	12.4K	New	—	$0

About SMCI insider trading

This page tracks insider transactions for Super Micro Computer, Inc. (SMCI) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.