Comparable stake leader
JANE STREET GROUP, LLC
SEC ownership of Super Micro Computer, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001375365.
Disclosed value leader
Liang Chiu-Chu Sara Liu
Comparable rows
5/50
Latest evidence
27 Oct 2026
- Public ticker
- SMCI, SMCIP on Nasdaq
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
JANE STREET GROUP, LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
5 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
-
27 Oct 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001375365
- Issuer location
- San Jose, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
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
Liang Chiu-Chu Sara Liu
Comparable rows
5/50
Latest evidence
27 Oct 2026
13F
13D/G
3/4/5
Lead comparable stake: 7.4%
45 rows are not safely comparable across share classes.
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 7.4%.
5 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
7.4%
VANGUARD CAPITAL MANAGEMENT LLC
6.3%
CAPITAL VENTURES INTERNATIONAL
5.1%
VANGUARD PORTFOLIO MANAGEMENT LLC
5%
SUSQUEHANNA SECURITIES, LLC
4.5%
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 |
13F
13D/G
Company
|
7.4%
Reported 13D/G
· 30 Jun 2026
|
$1,394,589,518
39,377,280 shares
mixed-class rows
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Capital Management
|
6.3%
Reported 13D/G
· 31 Mar 2026
|
$1,066,345,619
36,356,823 shares
|
— | 30 Jun 2026 |
| CAPITAL VENTURES INTERNATIONAL |
13D/G
|
5.1%
Reported 13D/G
· 30 Jun 2026
|
$923,286,596
33,379,848 shares
|
-$192,268,477 | 30 Jun 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
5%
Reported 13D/G
· 30 Sep 2026
|
$1,345,402,643
32,758,769 shares
|
-$7,210,249 | 30 Sep 2026 |
| SUSQUEHANNA SECURITIES, LLC |
13D/G
SIG Brokerage, LP
|
4.5%
Reported 13D/G
· 31 Dec 2024
|
$938,650,356
26,073,621 shares
|
$0 | 31 Dec 2024 |
| Liang Chiu-Chu Sara Liu |
3/4/5
Director, 10%+ Owner
|
—
mixed-class rows
|
$3,443,812,504
96,106,613 shares
mixed-class rows
|
-$12,220,584 | 27 Oct 2026 |
| Charles Liang |
3/4/5
President and CEO, Director, 10%+ Owner
|
—
mixed-class rows
|
$1,797,373,127
56,017,999 shares
mixed-class rows
|
-$12,220,584 | 27 Oct 2026 |
| BlackRock, Inc. |
13F
Company
|
—
mixed-class rows
|
$1,608,697,653
51,729,005 shares
mixed-class rows
|
— | 30 Jun 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: -$27,914,178.
Buys
$0
Insiders: 0
Sells
$27,914,178
Insiders: 4
Net
-$27,914,178
Shares: -705,534
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 705,534
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 600,000 | $0 | $24,441,167 | -$24,441,167 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 105,534 | $0 | $3,473,011 | -$3,473,011 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 23 reporting-owner rows connected to Super Micro Computer, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
23
Largest Forms 3/4/5 holder
Liang Chiu-Chu Sara Liu
Net 12M change
-$27.91M
Full value: -$27,914,179 · USD · 12-month changeLatest report
27 Oct 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Liang Chiu-Chu Sara Liu | Director, 10%+ Owner | $3,443,812,504 | -$12,220,584 | -0.35% | Mixed | 27 Oct 2026 |
| Charles Liang | President and CEO, Director, 10%+ Owner | $1,797,373,127 | -$12,220,584 | -0.68% | Mixed | 27 Oct 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 | $8,506,163 | Mixed | 14 Aug 2026 | ||
| Jin Xiao | Sr. Corporate VP, Engineering | $7,993,823 | Median | 27 Oct 2026 | ||
| Sherman Tuan | Director | $6,236,653 | -$1,604,790 | -20% | Mixed | 14 Aug 2026 |
| Michael S. McAndrews | Director | $6,048,000 | Mixed | 10 May 2021 | ||
| David E. Weigand | SVP, Chief Financial Officer | $4,551,876 | Mixed | 27 Aug 2026 | ||
| George Kao | Svp, Operations | $4,524,925 | -$1,868,221 | -29% | Mixed | 24 Nov 2025 |
| Kenneth Cheung | SVP, Chief Accounting Officer | $3,152,241 | Mixed | 27 Oct 2026 | ||
| Saria Tseng | Director | $2,764,713 | Mixed | 03 Aug 2021 | ||
| Vikranth Malyala | SVP, Chief Business Officer | $1,966,308 | Median | 27 Oct 2026 | ||
| Judy L. Lin | Director | $1,849,657 | Mixed | 14 Aug 2026 | ||
| Don W. Clegg | SVP, Worldwide Sales | $1,529,185 | Mixed | 08 May 2026 | ||
| Susan Mogensen | Director | $404,678 | Mixed | 14 Aug 2026 | ||
| Robert L. Blair | Director | $284,608 | Mixed | 14 Aug 2026 | ||
| Matthew Thauberger | Chief Revenue Officer | $266,421 | Median | 27 Oct 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Liang Chiu-Chu Sara Liu | SMCI | Restricted Stock Units | Award | 15,453 | 15,453 | 27 Oct 2026 | Direct | |||
| Charles Liang | SMCI | Restricted Stock Units | Award | 15,453 | 15,453 | 27 Oct 2026 | By Spouse | |||
| Kenneth Cheung | SMCI | Restricted Stock Units | Award | 6,000 | 6,000 | 27 Oct 2026 | Direct | |||
| Jin Xiao | SMCI | Restricted Stock Units | Award | 9,000 | 9,000 | 27 Oct 2026 | Direct | |||
| Matthew Thauberger | SMCI | Restricted Stock Units | Award | 10,000 | 10,000 | 27 Oct 2026 | Direct | |||
| Vikranth Malyala | SMCI | Restricted Stock Units | Award | 14,000 | 14,000 | 27 Oct 2026 | Direct | |||
| Liang Chiu-Chu Sara Liu | SMCI | Common Stock | Sale | -22.9% | -$4,502,000 | $45.02 | -100,000 | 337,506 | 07 Oct 2026 | Direct |
| Charles Liang | SMCI | Common Stock | Sale | -22.9% | -$4,502,000 | $45.02 | -100,000 | 337,506 | 07 Oct 2026 | By Spouse |
| Charles Liang | SMCI | Common Stock | Sale | -18.6% | -$4,000,000 | $40.00 | -100,000 | 437,506 | 04 Sep 2026 | By Spouse |
| Liang Chiu-Chu Sara Liu | SMCI | Common Stock | Sale | -18.6% | -$4,000,000 | $40.00 | -100,000 | 437,506 | 04 Sep 2026 | Direct |
| Charles Liang | SMCI | Common Stock | Sale | -15.7% | -$3,718,584 | $37.19 | -100,000 | 537,506 | 03 Sep 2026 | By Spouse |
| Liang Chiu-Chu Sara Liu | SMCI | Common Stock | Sale | -15.7% | -$3,718,584 | $37.19 | -100,000 | 537,506 | 03 Sep 2026 | Direct |
| David E. Weigand | SMCI | Restricted Stock Units | Award | 24,093 | 24,093 | 27 Aug 2026 | Direct | |||
| Vikranth Malyala | SMCI | Restricted Stock Units | Award | 8,060 | 8,060 | 27 Aug 2026 | Direct | |||
| Jin Xiao | SMCI | Restricted Stock Units | Award | 2,112 | 2,112 | 27 Aug 2026 | Direct | |||
| Jin Xiao | SMCI | Common Stock | Tax liability | -0.73% | -1,436 | 194,586 | 17 Aug 2026 | Direct | ||
| Jin Xiao | SMCI | Common Stock | Options Exercise | 2.08% | 4,000 | 196,022 | 17 Aug 2026 | Direct | ||
| Jin Xiao | SMCI | Restricted Stock Units | Options Exercise | -100% | -4,000 | 0 | 17 Aug 2026 | Direct | ||
| David E. Weigand | SMCI | Common Stock | Tax liability | -2.4% | -3,308 | 134,730 | 17 Aug 2026 | Direct | ||
| David E. Weigand | SMCI | Common Stock | Options Exercise | 4.94% | 6,500 | 138,038 | 17 Aug 2026 | Direct | ||
| David E. Weigand | SMCI | Restricted Stock Units | Options Exercise | -100% | -6,500 | 0 | 17 Aug 2026 | Direct | ||
| Matthew Thauberger | SMCI | Common Stock | Tax liability | -15% | -1,145 | 6,487 | 17 Aug 2026 | Direct | ||
| Matthew Thauberger | SMCI | Common Stock | Options Exercise | 41.8% | 2,250 | 7,632 | 17 Aug 2026 | Direct | ||
| Matthew Thauberger | SMCI | Restricted Stock Units | Options Exercise | -100% | -2,250 | 0 | 17 Aug 2026 | Direct | ||
| Vikranth Malyala | SMCI | Common Stock | Tax liability | -5.99% | -3,053 | 47,877 | 17 Aug 2026 | Direct | ||
| Vikranth Malyala | SMCI | Common Stock | Options Exercise | 13.4% | 6,000 | 50,930 | 17 Aug 2026 | Direct | ||
| Vikranth Malyala | SMCI | Restricted Stock Units | Options Exercise | -100% | -6,000 | 0 | 17 Aug 2026 | Direct | ||
| Charles Liang | SMCI | Common Stock | Tax liability | -0.31% | -1,970 | 637,506 | 17 Aug 2026 | By Spouse | ||
| Charles Liang | SMCI | Common Stock | Options Exercise | 0.57% | 3,650 | 639,476 | 17 Aug 2026 | By Spouse | ||
| Charles Liang | SMCI | Restricted Stock Units | Options Exercise | -100% | -3,650 | 0 | 17 Aug 2026 | By Spouse | ||
| Liang Chiu-Chu Sara Liu | SMCI | Common Stock | Tax liability | -0.31% | -1,970 | 637,506 | 17 Aug 2026 | Direct | ||
| Liang Chiu-Chu Sara Liu | SMCI | Common Stock | Options Exercise | 0.57% | 3,650 | 639,476 | 17 Aug 2026 | Direct | ||
| Liang Chiu-Chu Sara Liu | SMCI | Restricted Stock Units | Options Exercise | -100% | -3,650 | 0 | 17 Aug 2026 | Direct | ||
| Kenneth Cheung | SMCI | Common Stock | Tax liability | -1.25% | -808 | 63,772 | 17 Aug 2026 | Direct | ||
| Kenneth Cheung | SMCI | Common Stock | Options Exercise | 3.61% | 2,250 | 64,580 | 17 Aug 2026 | Direct | ||
| Kenneth Cheung | SMCI | Restricted Stock Units | Options Exercise | -100% | -2,250 | 0 | 17 Aug 2026 | Direct | ||
| Matthew Thauberger | SMCI | Employee Stock Option (right to buy) | Award | 121.9% | 21,938 | 39,938 | 14 Aug 2026 | Direct | ||
| Matthew Thauberger | SMCI | Restricted Stock Units | Award | 9,872 | 9,872 | 14 Aug 2026 | Direct | |||
| Tally C. Liu | SMCI | Stock Option (right to buy) | Award | 5,062 | 5,062 | 14 Aug 2026 | Direct | |||
| Tally C. Liu | SMCI | Restricted Stock Units | Award | 3,941 | 3,941 | 14 Aug 2026 | Direct | |||
| Sherman Tuan | SMCI | Stock Option (right to buy) | Award | 10,125 | 10,125 | 14 Aug 2026 | Direct | |||
| Robert L. Blair | SMCI | Restricted Stock Units | Award | 7,882 | 7,882 | 14 Aug 2026 | Direct | |||
| Susan Mogensen | SMCI | Restricted Stock Units | Award | 7,882 | 7,882 | 14 Aug 2026 | Direct | |||
| Judy L. Lin | SMCI | Restricted Stock Units | Award | 7,882 | 7,882 | 14 Aug 2026 | Direct | |||
| Scott Angel | SMCI | Restricted Stock Units | Award | 7,882 | 7,882 | 14 Aug 2026 | Direct | |||
| Matthew Thauberger | SMCI | Common Stock | Tax liability | -10.3% | -596 | 5,171 | 10 Aug 2026 | Direct | ||
| Matthew Thauberger | SMCI | Common Stock | Options Exercise | 26.4% | 1,170 | 5,601 | 10 Aug 2026 | Direct | ||
| Matthew Thauberger | SMCI | Restricted Stock Units | Options Exercise | -100% | -1,170 | 0 | 10 Aug 2026 | Direct | ||
| Vikranth Malyala | SMCI | Common Stock | Tax liability | -3.59% | -1,654 | 44,372 | 10 Aug 2026 | Direct | ||
| Vikranth Malyala | SMCI | Common Stock | Options Exercise | 7.69% | 3,248 | 45,510 | 10 Aug 2026 | Direct |
* marks a reported price that did not pass the local price check.