SMCI
Super Micro Computer Inc
40.40$
+9.5%
vs. previous close
Closing price · As of: Sep 17, 2026
Ownership
Ownership Structure
Who owns Super Micro Computer Inc (SMCI)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 86.2% of the shares are freely tradable; institutional investors hold 62.5%.
Institutional ownership
?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
62.5%
Insiders
?Share of the stock held by the executives, founders and major shareholders of the company itself.
12.9%
Float
?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
86.2%
Short % of float
?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
18.5%
Shares Outstanding
?Total number of shares issued. Price times share count gives market cap.
647Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 6.60 | 43,360,579 | +4.2 | 03/31/2026 |
| Vanguard Capital Management, LLC | 5.01 | 32,894,995 | +0.0 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 4.50 | 29,569,380 | +0.0 | 03/31/2026 |
| State Street Corp | 3.35 | 22,017,501 | -0.6 | 03/31/2026 |
| Geode Capital Management, LLC | 2.15 | 14,155,928 | +2.5 | 03/31/2026 |
| UBS Group AG | 1.84 | 12,073,477 | +62.9 | 03/31/2026 |
| Amvescap Plc. | 1.80 | 11,813,138 | +18.7 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 2.67 | 17,514,101 | +0.3 | 07/31/2026 |
| Vanguard 500 Index Investor | 2.25 | 14,789,619 | +1.1 | 07/31/2026 |
| Vanguard MStar Mid Cap Index Instl | 1.81 | 11,899,766 | -0.1 | 07/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Liang Charles | President and CEO | 437,506 | 17,675,242 $ | Sep 4, 2026 | indirect |
| Liu Liang Chiu-Chu Sara | Director | 437,506 | 17,675,242 $ | Sep 4, 2026 | direct |
| Xiao Jin | Sr. Corporate VP, Engineering | 194,586 | 7,861,274 $ | Aug 17, 2026 | direct |
| Weigand David E | SVP, Chief Financial Officer | 134,730 | 5,443,092 $ | Aug 17, 2026 | direct |
| Cheung Kenneth | SVP, Chief Accounting Officer | 63,772 | 2,576,389 $ | Aug 17, 2026 | direct |
| Malyala Vikranth | SVP, Chief Business Officer | 47,877 | 1,934,231 $ | Aug 17, 2026 | direct |
| Thauberger Matthew | Chief Revenue Officer | 6,487 | 262,075 $ | Aug 17, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 4, 2026 | Liang Charles | President and CEO | Sell | 100,000 | 40.00 | 4,000,000 |
| Sep 4, 2026 | Liu Liang Chiu-Chu Sara | Director | Sell | 100,000 | 40.00 | 4,000,000 |
| Sep 3, 2026 | Liang Charles | President and CEO | Sell | 57,435 | 37.62 | 2,160,705 |
| Sep 3, 2026 | Liang Charles | President and CEO | Sell | 42,565 | 36.60 | 1,557,879 |
| Sep 3, 2026 | Liu Liang Chiu-Chu Sara | Director | Sell | 57,435 | 37.62 | 2,160,705 |
| Sep 3, 2026 | Liu Liang Chiu-Chu Sara | Director | Sell | 42,565 | 36.60 | 1,557,879 |
| Aug 17, 2026 | Thauberger Matthew | Chief Revenue Officer | Other | 1,145 | 38.28 | 43,831 |
| Aug 17, 2026 | Thauberger Matthew | Chief Revenue Officer | Other | 2,250 | – | – |
| Aug 17, 2026 | Malyala Vikranth | SVP, Chief Business Officer | Other | 3,053 | 38.28 | 116,869 |
| Aug 17, 2026 | Malyala Vikranth | SVP, Chief Business Officer | Other | 6,000 | – | – |
| Aug 17, 2026 | Xiao Jin | Sr. Corporate VP, Engineering | Other | 1,436 | 38.28 | 54,970 |
| Aug 17, 2026 | Xiao Jin | Sr. Corporate VP, Engineering | Other | 4,000 | – | – |
| Aug 17, 2026 | Weigand David E | SVP, Chief Financial Officer | Other | 3,308 | 38.28 | 126,630 |
| Aug 17, 2026 | Weigand David E | SVP, Chief Financial Officer | Other | 6,500 | – | – |
| Aug 17, 2026 | Cheung Kenneth | SVP, Chief Accounting Officer | Other | 808 | 38.28 | 30,930 |
| Aug 17, 2026 | Cheung Kenneth | SVP, Chief Accounting Officer | Other | 2,250 | – | – |
| Aug 17, 2026 | Liang Charles | President and CEO | Other | 1,970 | 38.28 | 75,412 |
| Aug 17, 2026 | Liang Charles | President and CEO | Other | 3,650 | – | – |
| Aug 17, 2026 | Liu Liang Chiu-Chu Sara | Director | Other | 1,970 | 38.28 | 75,412 |
| Aug 17, 2026 | Liu Liang Chiu-Chu Sara | Director | Other | 3,650 | – | – |
| Aug 10, 2026 | Thauberger Matthew | Chief Revenue Officer | Other | 219 | 31.46 | 6,890 |
| Aug 10, 2026 | Thauberger Matthew | Chief Revenue Officer | Other | 430 | – | – |
| Aug 10, 2026 | Thauberger Matthew | Chief Revenue Officer | Other | 377 | 31.46 | 11,860 |
| Aug 10, 2026 | Thauberger Matthew | Chief Revenue Officer | Other | 740 | – | – |
| Aug 10, 2026 | Malyala Vikranth | SVP, Chief Business Officer | Other | 580 | 31.46 | 18,247 |
| Aug 10, 2026 | Malyala Vikranth | SVP, Chief Business Officer | Other | 1,138 | – | – |
| Aug 10, 2026 | Malyala Vikranth | SVP, Chief Business Officer | Other | 1,074 | 31.46 | 33,788 |
| Aug 10, 2026 | Malyala Vikranth | SVP, Chief Business Officer | Other | 2,110 | – | – |
| Aug 10, 2026 | Xiao Jin | Sr. Corporate VP, Engineering | Other | 368 | 31.46 | 11,577 |
| Aug 10, 2026 | Xiao Jin | Sr. Corporate VP, Engineering | Other | 1,024 | – | – |
| Aug 10, 2026 | Xiao Jin | Sr. Corporate VP, Engineering | Other | 707 | 31.46 | 22,242 |
| Aug 10, 2026 | Xiao Jin | Sr. Corporate VP, Engineering | Other | 1,970 | – | – |
| Aug 10, 2026 | Weigand David E | SVP, Chief Financial Officer | Other | 754 | 31.46 | 23,721 |
| Aug 10, 2026 | Weigand David E | SVP, Chief Financial Officer | Other | 1,480 | – | – |
| Aug 10, 2026 | Cheung Kenneth | SVP, Chief Accounting Officer | Other | 1,231 | 31.46 | 38,727 |
| Aug 10, 2026 | Cheung Kenneth | SVP, Chief Accounting Officer | Other | 3,429 | – | – |
| Aug 10, 2026 | Cheung Kenneth | SVP, Chief Accounting Officer | Other | 449 | 31.46 | 14,126 |
| Aug 10, 2026 | Cheung Kenneth | SVP, Chief Accounting Officer | Other | 1,250 | – | – |
| Aug 10, 2026 | Liang Charles | President and CEO | Other | 553 | 31.46 | 17,397 |
| Aug 10, 2026 | Liang Charles | President and CEO | Other | 1,024 | – | – |
| Aug 10, 2026 | Liang Charles | President and CEO | Other | 1,139 | 31.46 | 35,833 |
| Aug 10, 2026 | Liang Charles | President and CEO | Other | 2,110 | – | – |
| Aug 10, 2026 | Liu Liang Chiu-Chu Sara | Director | Other | 553 | 31.46 | 17,397 |
| Aug 10, 2026 | Liu Liang Chiu-Chu Sara | Director | Other | 1,024 | – | – |
| Aug 10, 2026 | Liu Liang Chiu-Chu Sara | Director | Other | 1,139 | 31.46 | 35,833 |
| Aug 10, 2026 | Liu Liang Chiu-Chu Sara | Director | Other | 2,110 | – | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.