Super Micro Computer SMCI Insider Ownership

NASDAQ SMCI

$32.38 +0.28 (+0.89%)

As of: Oct 20, 2026 · 11:01 AM EDT

Insider Holdings by Owner

2.61Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

12.59%

▼-0.054% pp QoQ

Shares Held by Insiders

82.69Mn

filed for Sep 2026

▼-0.43% QoQ

Shares Outstanding

656.88Mn

656,882,000 shares

Direct Holdings

1.74Mn

Indirect: 80.94Mn

Net Shares Traded (QoQ)

-357.11K

net selling in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 10, 2026

Over the trailing 12 months, SMCI insiders sold $15.69 million worth of shares (405.53K shares) in open-market trades, with no open-market purchases.

A count shows 3 insiders selling SMCI stock on the open market over the past 12 months and none buying.
Liang Chiu-Chu Sara Liu (Director and 10% owner) was SMCI's largest open-market seller in the past 12 months, with $12.22 million of sales (300K shares); the latest was on October 7, 2026.
Apart from open-market trades, SMCI insiders acquired 431.77K shares through option exercises and conversions, gave up 109.78K shares to cover taxes or exercise prices and gave away 345K shares as gifts in the past 12 months.
According to Business Quant data, insiders at Super Micro Computer reported 82.59Mn shares in total in their latest Form 4 filings, down 0.55% from 83.04Mn shares at the end of Q2 2026 and down 1.00% from 83.42Mn shares at the end of Q3 2025.
Of the 82.59Mn shares held by Super Micro Computer insiders, 1.64Mn shares (1.99%) are held directly and 80.94Mn shares (98.01%) indirectly, through trusts, partnerships, family members and other entities.
Holdings in Super Micro Computer stock are reported by 15 insiders, the officers, directors and 10% owners who have filed a Form 4 in the past two years.
Super Micro Computer's top three insider holders by shares held are Liang Chiu-Chu Sara Liu (Director and 10% owner, 66.1Mn shares), Yih-Shyan Wally Liaw (Director, 15.28Mn shares) and Tally C. Liu (Director, 288.74K shares).
Liang Chiu-Chu Sara Liu holds 80.03% of the combined insider position in Super Micro Computer.
Institutions held 68.00% of Super Micro Computer's outstanding shares in their Q2 2026 13F filings, insiders about 12.57% based on their latest Form 4 filings, and other investors, including the public, the remaining 19.43%.
In the past year, 16 insiders of Super Micro Computer submitted 90 Form 4 filings reporting trades, awards or other transactions.
Insider figures for SMCI include Form 4 filings through October 9, 2026.

Form 4 Holdings

Insiders Holding SMCI

Insiders 18

Shares held 2.61Mn

Of outstanding 0.397%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Shiu Leung Chan	Director	429,170	0	429,170	16.5%	05 Feb, 2024
2	Charles Liang	President And Ceo	0	337,506	337,506	12.9%	09 Oct, 2026
3	Liang Chiu-Chu Sara Liu	Senior Vice President	337,506	0	337,506	12.9%	09 Oct, 2026
4	Tally C Liu	Director	288,738	0	288,738	11.1%	02 Jul, 2026
5	Sherman Tuan	Director	207,156	0	207,156	7.9%	01 Dec, 2025
6	Daniel W Fairfax	Director	198,330	0	198,330	7.6%	02 Jul, 2024
7	Jin Xiao	Sr. Corporate Vp, Engineering	194,586	0	194,586	7.5%	19 Aug, 2026
8	David E Weigand	Svp, Chief Financial Officer	134,730	0	134,730	5.2%	19 Aug, 2026
9	George Kao	Svp, Operations	134,691	0	134,691	5.2%	26 Nov, 2025
10	Yih-Shyan Wally Liaw	Secretary V P Of Intl Sales	94,492	0	94,492	3.6%	19 Feb, 2026
11	Kenneth Cheung	Svp, Chief Accounting Officer	63,772	0	63,772	2.4%	19 Aug, 2026
12	Judy L. Lin	Director	60,323	0	60,323	2.3%	02 Jul, 2026
13	Don W Clegg	Svp, Worldwide Sales	50,540	0	50,540	1.9%	12 May, 2026
14	Vikranth Malyala	Svp, Chief Business Officer	47,877	0	47,877	1.8%	19 Aug, 2026
15	Susan Mogensen	Director	8,663	0	8,663	0.3%	02 Jul, 2026
16	Scott Angel	Director	7,055	0	7,055	0.3%	02 Jul, 2026
17	Robert L Blair	Director	6,963	0	6,963	0.3%	02 Jul, 2026
18	Matthew Thauberger	Chief Revenue Officer	6,487	0	6,487	0.2%	19 Aug, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

2,967 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
07 Oct, 2026	Liang Chiu-Chu Sara Liu	Director, TenPercentOwner	Disposed S	100,000	$45.02	$4.50Mn	337,506	Direct
07 Oct, 2026	Charles Liang	President And Ceo	Disposed S	100,000	$45.02	$4.50Mn	337,506	Indirect
03 Sep, 2026	Liang Chiu-Chu Sara Liu	Director, TenPercentOwner	Disposed S	42,565	$36.60	$1.56Mn	594,941	Direct
03 Sep, 2026	Charles Liang	President And Ceo	Disposed S	42,565	$36.60	$1.56Mn	594,941	Indirect
03 Sep, 2026	Liang Chiu-Chu Sara Liu	Director, TenPercentOwner	Disposed S	57,435	$37.62	$2.16Mn	537,506	Direct
03 Sep, 2026	Charles Liang	President And Ceo	Disposed S	57,435	$37.62	$2.16Mn	537,506	Indirect
04 Sep, 2026	Charles Liang	President And Ceo	Disposed S	100,000	$40.00	$4.00Mn	437,506	Indirect
04 Sep, 2026	Liang Chiu-Chu Sara Liu	Director, TenPercentOwner	Disposed S	100,000	$40.00	$4.00Mn	437,506	Direct
27 Aug, 2026	Vikranth Malyala	Svp, Chief Business Officer	Acquired A	8,060	$0.00	$0	8,060	Direct
27 Aug, 2026	David E Weigand	Svp, Chief Financial Officer	Acquired A	24,093	$0.00	$0	24,093	Direct
27 Aug, 2026	Jin Xiao	Sr. Corporate Vp, Engineering	Acquired A	2,112	$0.00	$0	2,112	Direct
17 Aug, 2026	Liang Chiu-Chu Sara Liu	Director, TenPercentOwner	Acquired M	3,650	—	—	639,476	Direct
17 Aug, 2026	Kenneth Cheung	Svp, Chief Accounting Officer	Acquired M	2,250	—	—	64,580	Direct
17 Aug, 2026	Charles Liang	President And Ceo	Acquired M	3,650	—	—	639,476	Indirect
17 Aug, 2026	Vikranth Malyala	Svp, Chief Business Officer	Acquired M	6,000	—	—	50,930	Direct
17 Aug, 2026	Jin Xiao	Sr. Corporate Vp, Engineering	Acquired M	4,000	—	—	196,022	Direct
17 Aug, 2026	Matthew Thauberger	Chief Revenue Officer	Acquired M	2,250	—	—	7,632	Direct
17 Aug, 2026	David E Weigand	Svp, Chief Financial Officer	Acquired M	6,500	—	—	138,038	Direct
17 Aug, 2026	David E Weigand	Svp, Chief Financial Officer	Disposed F	3,308	$38.28	$126.63K	134,730	Direct
17 Aug, 2026	Liang Chiu-Chu Sara Liu	Director, TenPercentOwner	Disposed F	1,970	$38.28	$75.41K	637,506	Direct

Showing 1 to 20 of 2,967 transactions