SEC ownership of Super Micro Computer, Inc.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001375365.

Comparable stake leader

JANE STREET GROUP, LLC

Disclosed value leader

JANE STREET GROUP, LLC

Comparable rows

50/50

Latest evidence

11 Jun 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
JANE STREET GROUP, LLC
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
11 Jun 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001375365
Issuer location
San Jose, CA

Ownership snapshot

Top shareholders of Super Micro Computer, Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
JANE STREET GROUP, LLC
Disclosed value leader
JANE STREET GROUP, LLC
Comparable rows
50/50
Latest evidence
11 Jun 2026
13D/G 13F Lead comparable stake: 8.5% 13D/G row: JANE STREET GROUP, LLC Showing 1-8 of 50 holder rows.

Quick read

JANE STREET GROUP, LLC leads the comparable SEC ownership view at 8.5%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens JANE STREET GROUP, LLC's linked filing trail.
Comparable ownership Top 5
JANE STREET GROUP, LLC 8.5%
VANGUARD CAPITAL MANAGEMENT LLC 6.3%
CAPITAL VENTURES INTERNATIONAL 6.2%
SUSQUEHANNA SECURITIES, LLC 4.5%
BlackRock, Inc. 6.7%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
JANE STREET GROUP, LLC
13D/G 13F
Company
8.5%
$2,339,058,127
56,635,790 shares
$0 11 Jun 2026
VANGUARD CAPITAL MANAGEMENT LLC
13D/G 13F
Vanguard Capital Management · Company
6.3%
$863,681,014
37,930,655 shares
$0 31 Mar 2026
CAPITAL VENTURES INTERNATIONAL
13D/G
6.2%
$1,665,669,722
40,330,986 shares
$0 11 Jun 2026
SUSQUEHANNA SECURITIES, LLC
13D/G
SIG Brokerage, LP
4.5%
$938,650,356
26,073,621 shares
$0 31 Dec 2024
BlackRock, Inc.
13F
Company
13F
6.7%
$987,320,385
43,360,579 shares
31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
Company
13F
4.5%
$673,294,783
29,569,380 shares
31 Mar 2026
STATE STREET CORP
13F
Company
13F
3.4%
$501,338,498
22,017,501 shares
31 Mar 2026
GEODE CAPITAL MANAGEMENT, LLC
13F
Company
13F
2.2%
$321,136,588
14,155,928 shares
31 Mar 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$31,363,992.

Buys
$0
Insiders: 0
Sells
$31,363,992
Insiders: 5
Net
-$31,363,992
Shares: -595,534
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 595,534
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 105,534 $0 $3,473,011 -$3,473,011
9-12 0 490,000 $0 $27,890,981 -$27,890,981

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 20 reporting-owner rows connected to Super Micro Computer, Inc.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
20
Largest Forms 3/4/5 holder
Charles Liang
Net 12M change
-$31,363,992
Latest report
17 Jun 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Charles Liang President and CEO, Director, 10%+ Owner $1,511,854,632 -$12,000,000 -0.79% Mixed 26 May 2026
Liang Chiu-Chu Sara Liu Director, 10%+ Owner $1,511,854,632 -$12,000,000 -0.79% Mixed 26 May 2026
Liaw Yih-Shyan Wally Director $484,303,984 Mixed 17 Feb 2026
Fred Hwei-Ming Tsai Director $72,408,000 Mixed 10 May 2021
Shiu Leung Chan Director $24,376,856 Filing P/S 01 Feb 2024
Daniel W. Fairfax Director $10,251,005 Mixed 09 Aug 2024
Tally C. Liu Director $8,410,073 Mixed 29 Jan 2026
Sherman Tuan Director $6,996,916 -$1,604,790 -19% Mixed 26 Nov 2025
Michael S. McAndrews Director $6,048,000 Mixed 10 May 2021
George Kao Svp, Operations $4,524,925 -$3,623,421 -44% Mixed 24 Nov 2025
Jin Xiao Sr. Corporate VP, Engineering $4,329,851 Median 10 May 2026
David E. Weigand SVP, Chief Financial Officer $3,358,262 -$2,135,781 -39% Mixed 17 Jun 2026
Judy L. Lin Director $2,785,629 Mixed 08 Aug 2025
Saria Tseng Director $2,764,713 Mixed 03 Aug 2021
Kenneth Cheung SVP, Chief Accounting Officer $1,884,091 Mixed 10 May 2026
Don W. Clegg SVP, Worldwide Sales $1,529,185 Mixed 08 May 2026
Vikranth Malyala SVP, Chief Business Officer $900,211 Median 17 Jun 2026
Susan Mogensen Director $312,100 Mixed 08 Aug 2025
Robert L. Blair Director $158,183 Mixed 08 Aug 2025
Scott Angel Director $47,819 Mixed 06 Feb 2026

Recent insider transactions for Super Micro Computer, Inc.

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Vikranth Malyala SMCI Common Stock Tax liability -6.67% -2,825 39,535 17 Jun 2026 Direct
Vikranth Malyala SMCI Common Stock Options Exercise 21.5% 7,500 42,360 17 Jun 2026 Direct
Vikranth Malyala SMCI Restricted Stock Units Options Exercise -50% -7,500 7,500 17 Jun 2026 Direct
Vikranth Malyala SMCI Restricted Stock Units Award 15,000 15,000 17 Jun 2026 Direct
David E. Weigand SMCI Common Stock Tax liability -1.46% -1,794 121,125 17 Jun 2026 Direct
David E. Weigand SMCI Common Stock Options Exercise 4.24% 5,000 122,919 17 Jun 2026 Direct
David E. Weigand SMCI Restricted Stock Units Options Exercise -50% -5,000 5,000 17 Jun 2026 Direct
David E. Weigand SMCI Restricted Stock Units Award 10,000 10,000 17 Jun 2026 Direct
Charles Liang SMCI Common Stock Gift -1.32% -340,000 25,332,520 26 May 2026 By Joint Account w/ Spouse
Liang Chiu-Chu Sara Liu SMCI Common Stock Gift -1.32% -340,000 25,332,520 26 May 2026 By Joint Account w/ Spouse
David E. Weigand SMCI Common Stock Tax liability -1.26% -1,497 116,964 10 May 2026 Direct
David E. Weigand SMCI Common Stock Options Exercise 3.65% 4,170 118,454 10 May 2026 Direct
David E. Weigand SMCI Restricted Stock Units Options Exercise -100% -4,170 0 10 May 2026 Direct
Don W. Clegg SMCI Common Stock Tax liability -1.64% -829 49,713 10 May 2026 Direct
Don W. Clegg SMCI Common Stock Options Exercise 4.74% 2,310 51,003 10 May 2026 Direct
Don W. Clegg SMCI Restricted Stock Units Options Exercise -100% -2,310 0 10 May 2026 Direct
Jin Xiao SMCI Common Stock Tax liability -1.15% -2,178 187,476 10 May 2026 Direct
Jin Xiao SMCI Common Stock Options Exercise 3.27% 6,068 191,574 10 May 2026 Direct
Jin Xiao SMCI Restricted Stock Units Options Exercise -43.5% -6,068 7,880 10 May 2026 Direct
Liang Chiu-Chu Sara Liu SMCI Common Stock Tax liability -0.53% -3,355 631,756 10 May 2026 Direct
Liang Chiu-Chu Sara Liu SMCI Common Stock Options Exercise 0.99% 6,218 635,854 10 May 2026 Direct
Liang Chiu-Chu Sara Liu SMCI Restricted Stock Units Options Exercise -42.4% -6,218 8,450 10 May 2026 Direct
Charles Liang SMCI Common Stock Tax liability -0.53% -3,355 631,756 10 May 2026 By Spouse
Charles Liang SMCI Common Stock Options Exercise 0.99% 6,218 635,854 10 May 2026 By Spouse
Charles Liang SMCI Restricted Stock Units Options Exercise -42.4% -6,218 8,450 10 May 2026 By Spouse
Kenneth Cheung SMCI Common Stock Tax liability -0.75% -449 59,331 10 May 2026 Direct
Kenneth Cheung SMCI Common Stock Options Exercise 2.14% 1,250 59,780 10 May 2026 Direct
Kenneth Cheung SMCI Restricted Stock Units Options Exercise -16.7% -1,250 6,250 10 May 2026 Direct
David E. Weigand SMCI Restricted Stock Units Award 13,780 13,780 08 May 2026 Direct
David E. Weigand SMCI Employee Stock Option (right to buy) Award 30,622 30,622 08 May 2026 Direct
Don W. Clegg SMCI Restricted Stock Units Award 5,598 5,598 08 May 2026 Direct
Don W. Clegg SMCI Employee Stock Option (right to buy) Award 12,440 12,440 08 May 2026 Direct
Charles Liang SMCI Common Stock Options Exercise 3.44% 20,980 630,780 27 Feb 2026 By Spouse
Charles Liang SMCI Employee Stock Option (right to buy) Options Exercise -100% -20,980 0 27 Feb 2026 By Spouse
Liang Chiu-Chu Sara Liu SMCI Common Stock Options Exercise 3.44% 20,980 630,780 27 Feb 2026 Direct
Liang Chiu-Chu Sara Liu SMCI Employee Stock Option (right to buy) Options Exercise -100% -20,980 0 27 Feb 2026 Direct
Liaw Yih-Shyan Wally SMCI Common Stock Tax liability -1.27% -1,220 94,492 17 Feb 2026 Direct
Liaw Yih-Shyan Wally SMCI Common Stock Options Exercise 3.68% 3,400 95,712 17 Feb 2026 Direct
Liaw Yih-Shyan Wally SMCI Restricted Stock Units Options Exercise -50% -3,400 3,400 17 Feb 2026 Direct
Kenneth Cheung SMCI Common Stock Tax liability -1.56% -927 58,530 17 Feb 2026 Direct
Kenneth Cheung SMCI Common Stock Options Exercise 3.93% 2,250 59,457 17 Feb 2026 Direct
Kenneth Cheung SMCI Restricted Stock Units Options Exercise -50% -2,250 2,250 17 Feb 2026 Direct
Liang Chiu-Chu Sara Liu SMCI Common Stock Tax liability -0.34% -2,108 609,800 17 Feb 2026 Direct
Liang Chiu-Chu Sara Liu SMCI Common Stock Options Exercise 0.6% 3,650 611,908 17 Feb 2026 Direct
Liang Chiu-Chu Sara Liu SMCI Restricted Stock Units Options Exercise -50% -3,650 3,650 17 Feb 2026 Direct
Charles Liang SMCI Common Stock Tax liability -0.34% -2,108 609,800 17 Feb 2026 By Spouse
Charles Liang SMCI Common Stock Options Exercise 0.6% 3,650 611,908 17 Feb 2026 By Spouse
Charles Liang SMCI Restricted Stock Units Options Exercise -50% -3,650 3,650 17 Feb 2026 By Spouse
Don W. Clegg SMCI Common Stock Tax liability -1.44% -716 49,059 17 Feb 2026 Direct
Don W. Clegg SMCI Common Stock Options Exercise 3.64% 1,750 49,775 17 Feb 2026 Direct
* marks a reported price that did not pass the local price check.
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