CLSK
CleanSpark Inc
14.50$
+8.4%
vs. previous close
Closing price · As of: Sep 18, 2026
Ownership
Ownership Structure
Who owns CleanSpark Inc (CLSK)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 96.0% of the shares are freely tradable; institutional investors hold 87.6%.
Institutional ownership
?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
87.6%
Insiders
?Share of the stock held by the executives, founders and major shareholders of the company itself.
3.5%
Float
?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
96.0%
Short % of float
?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
42.4%
Shares Outstanding
?Total number of shares issued. Price times share count gives market cap.
257Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 16.25 | 41,742,612 | -6.4 | 03/31/2026 |
| Situational Awareness LP | 4.78 | 12,276,139 | +0.0 | 06/30/2026 |
| Situational Awareness Partners LP | 4.78 | 12,276,139 | +0.0 | 03/31/2026 |
| D. E. Shaw & Co LP | 4.38 | 11,260,140 | +75.0 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 4.32 | 11,092,140 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.31 | 11,071,533 | +0.0 | 03/31/2026 |
| State Street Corp | 4.28 | 10,996,032 | -4.0 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 3.76 | 9,647,132 | -31.6 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 6.09 | 15,628,663 | -0.1 | 08/31/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.02 | 7,753,636 | +0.3 | 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 |
|---|---|---|---|---|---|
| Schultz S. Matthew | CEO & Chairman | 3,039,089 | 44,066,791 $ | Sep 8, 2026 | direct |
| Garrison Scott Eugene | EVP, Chief Development Officer | 367,450 | 5,328,025 $ | Sep 8, 2026 | direct |
| Monnig Taylor | CTO, COO | 319,918 | 4,638,811 $ | Sep 8, 2026 | direct |
| McNeill Larry | Director | 311,278 | 4,513,531 $ | Jun 30, 2026 | direct |
| Vecchiarelli Gary Anthony | President, CFO | 305,786 | 4,433,897 $ | Sep 8, 2026 | direct |
| Beynon Roger Paul | Director | 148,022 | 2,146,319 $ | Jun 30, 2026 | direct |
| Carson Brian Jay | Chief Accounting Officer | 140,511 | 2,037,410 $ | Sep 8, 2026 | direct |
| Cavaleri Amanda | Director | 129,800 | 1,882,100 $ | Jun 30, 2026 | direct |
| Wood Thomas Leigh | Director | 63,932 | 927,014 $ | Jun 30, 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 8, 2026 | Carson Brian Jay | Chief Accounting Officer | Other | 17,183 | 13.34 | 229,171 |
| Sep 8, 2026 | Carson Brian Jay | Chief Accounting Officer | Other | 36,836 | 13.34 | 491,285 |
| Sep 8, 2026 | Monnig Taylor | CTO, COO | Sell | 12,033 | 13.34 | 160,485 |
| Sep 8, 2026 | Monnig Taylor | CTO, COO | Other | 47,351 | 13.34 | 631,525 |
| Sep 8, 2026 | Monnig Taylor | CTO, COO | Sell | 13,216 | 13.34 | 176,263 |
| Sep 8, 2026 | Monnig Taylor | CTO, COO | Other | 52,004 | 13.34 | 693,583 |
| Sep 8, 2026 | Garrison Scott Eugene | EVP, Chief Development Officer | Other | 53,596 | 13.34 | 714,815 |
| Sep 8, 2026 | Garrison Scott Eugene | EVP, Chief Development Officer | Other | 58,863 | 13.34 | 785,062 |
| Sep 8, 2026 | Vecchiarelli Gary Anthony | President, CFO | Other | 73,060 | 13.34 | 974,409 |
| Sep 8, 2026 | Vecchiarelli Gary Anthony | President, CFO | Other | 56,338 | 13.34 | 751,386 |
| Sep 8, 2026 | Schultz S. Matthew | CEO & Chairman | Other | 253,587 | 13.34 | 3,382,115 |
| Sep 8, 2026 | Schultz S. Matthew | CEO & Chairman | Other | 92,070 | 13.34 | 1,227,947 |
| Sep 4, 2026 | Carson Brian Jay | Chief Accounting Officer | Other | 43,666 | 0.00 | – |
| Sep 4, 2026 | Carson Brian Jay | Chief Accounting Officer | Other | 6,444 | 12.61 | 81,252 |
| Sep 4, 2026 | Carson Brian Jay | Chief Accounting Officer | Other | 16,375 | 0.00 | – |
| Sep 4, 2026 | Carson Brian Jay | Chief Accounting Officer | Other | 93,612 | 0.00 | – |
| Sep 4, 2026 | Monnig Taylor | CTO, COO | Other | 120,333 | 0.00 | – |
| Sep 4, 2026 | Monnig Taylor | CTO, COO | Sell | 4,513 | 12.61 | 56,904 |
| Sep 4, 2026 | Monnig Taylor | CTO, COO | Other | 17,757 | 12.61 | 223,896 |
| Sep 4, 2026 | Monnig Taylor | CTO, COO | Other | 45,125 | 0.00 | – |
| Sep 4, 2026 | Monnig Taylor | CTO, COO | Other | 132,158 | 0.00 | – |
| Sep 4, 2026 | Garrison Scott Eugene | EVP, Chief Development Officer | Other | 120,333 | 0.00 | – |
| Sep 4, 2026 | Garrison Scott Eugene | EVP, Chief Development Officer | Other | 20,999 | 12.61 | 264,774 |
| Sep 4, 2026 | Garrison Scott Eugene | EVP, Chief Development Officer | Other | 45,125 | 0.00 | – |
| Sep 4, 2026 | Garrison Scott Eugene | EVP, Chief Development Officer | Other | 132,158 | 0.00 | – |
| Sep 4, 2026 | Vecchiarelli Gary Anthony | President, CFO | Other | 185,666 | 0.00 | – |
| Sep 4, 2026 | Vecchiarelli Gary Anthony | President, CFO | Other | 27,397 | 12.61 | 345,446 |
| Sep 4, 2026 | Vecchiarelli Gary Anthony | President, CFO | Other | 69,625 | 0.00 | – |
| Sep 4, 2026 | Vecchiarelli Gary Anthony | President, CFO | Other | 143,171 | 0.00 | – |
| Sep 4, 2026 | Schultz S. Matthew | CEO & Chairman | Other | 576,333 | 0.00 | – |
| Sep 4, 2026 | Schultz S. Matthew | CEO & Chairman | Other | 95,095 | 12.61 | 1,199,043 |
| Sep 4, 2026 | Schultz S. Matthew | CEO & Chairman | Other | 216,125 | 0.00 | – |
| Sep 4, 2026 | Schultz S. Matthew | CEO & Chairman | Other | 209,042 | 0.00 | – |
| Aug 14, 2026 | Monnig Taylor | CTO, COO | Sell | 54 | 11.51 | 622 |
| Aug 14, 2026 | Monnig Taylor | CTO, COO | Other | 211 | 11.51 | 2,429 |
| Aug 14, 2026 | Garrison Scott Eugene | EVP, Chief Development Officer | Other | 1,192 | 11.51 | 13,720 |
| Aug 14, 2026 | Vecchiarelli Gary Anthony | President, CFO | Other | 632 | 11.51 | 7,274 |
| Aug 14, 2026 | Schultz S. Matthew | CEO & Chairman | Other | 9,031 | 11.51 | 103,947 |
| Aug 13, 2026 | Monnig Taylor | CTO, COO | Other | 536 | 0.00 | – |
| Aug 13, 2026 | Garrison Scott Eugene | EVP, Chief Development Officer | Other | 2,676 | 0.00 | – |
| Aug 13, 2026 | Vecchiarelli Gary Anthony | President, CFO | Other | 1,606 | 0.00 | – |
| Aug 13, 2026 | Schultz S. Matthew | CEO & Chairman | Other | 20,524 | 0.00 | – |
| Jun 30, 2026 | Cavaleri Amanda | Director | Other | 7,805 | 0.00 | – |
| Jun 30, 2026 | Beynon Roger Paul | Director | Other | 7,805 | 0.00 | – |
| Jun 30, 2026 | Wood Thomas Leigh | Director | Other | 7,805 | 0.00 | – |
| Jun 30, 2026 | McNeill Larry | Director | Other | 7,805 | 0.00 | – |
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 18, 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.