CLEANSPARK INC CLSK
COM NEW · Common Stock · CUSIP 18452B209 · ISIN US18452B2097
American Bitcoin mining company
- SectorFinancials
- IndustryFinance Services
- HeadquartersHenderson, NV
- Founded2014
- Websitecleanspark.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($12.6k this quarter). Holder counts are more reliable. Shares outstanding: 280.9m as of 2025-05-06, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $6.72. Options: 27 managers hold calls ($243.5m notional), 28 hold puts ($175.0m).
Trends to Q1 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 100 |
| Q4 2022 | 104 |
| Q1 2023 | 98 |
| Q2 2023 | 121 |
| Q3 2023 | 145 |
| Q4 2023 | 162 |
| Q1 2024 | 214 |
| Q2 2024 | 244 |
| Q3 2024 | 248 |
| Q4 2024 | 276 |
| Q1 2025 | 308 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2023 | 76 | 32 |
| Q3 2023 | 96 | 46 |
| Q4 2023 | 108 | 56 |
| Q1 2024 | 149 | 70 |
| Q2 2024 | 156 | 90 |
| Q3 2024 | 143 | 100 |
| Q4 2024 | 165 | 92 |
| Q1 2025 | 190 | 109 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2024 | $177.6m | $190.0m | 1.07 |
| Q3 2024 | $180.1m | $138.6m | 0.77 |
| Q4 2024 | $342.6m | $250.8m | 0.73 |
| Q1 2025 | $243.5m | $175.0m | 0.72 |
Biggest buyers
| BlackRock, Inc. | Added | +22.9m |
| VANGUARD GROUP INC | Added | +4.5m |
| STATE STREET CORP | Added | +4.3m |
| GOLDMAN SACHS GROUP INC | Added | +3.2m |
| BARCLAYS PLC | Added | +1.7m |
| Tidal Investments LLC | Added | +1.5m |
| PRINCIPAL FINANCIAL GROUP INC | Added | +1.4m |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +918.1k |
| Bank of New York Mellon Corp | Added | +889.3k |
| Public Sector Pension Investment Board | New | +881.7k |
Biggest sellers
| JANE STREET GROUP, LLC | Reduced | -4.5m |
| Assenagon Asset Management S.A. | Sold out | -4.3m |
| Galaxy Group Investments LLC | Sold out | -4.0m |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -3.6m |
| MORGAN STANLEY | Reduced | -2.9m |
| BANK OF AMERICA CORP /DE/ | Reduced | -2.8m |
| MIZUHO MARKETS AMERICAS LLC | Reduced | -1.6m |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -1.5m |
| Jump Financial, LLC | Sold out | -1.5m |
| MILLENNIUM MANAGEMENT LLC | Reduced | -1.4m |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $66.8m9.9m shares |
| CITADEL ADVISORS LLC | Reduced | $31.1m4.6m shares |
| GROUP ONE TRADING LLC | Reduced | $22.5m3.3m shares |
| SIMPLEX TRADING, LLC | Added | $21.7m3.2m shares |
| PEAK6 LLC | Added | $20.7m3.1m shares |
| JANE STREET GROUP, LLC | Reduced | $16.6m2.5m shares |
| Jefferies Financial Group Inc. | New | $13.5m2.0m shares |
| Parallax Volatility Advisers, L.P. | Added | $11.7m1.7m shares |
| IMC-Chicago, LLC | Reduced | $11.6m1.7m shares |
| WOLVERINE TRADING, LLC | Reduced | $8.0m1.1m shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $38.4m5.7m shares |
| WOLVERINE ASSET MANAGEMENT LLC | Added | $25.5m3.8m shares |
| CITADEL ADVISORS LLC | Reduced | $23.2m3.4m shares |
| SIMPLEX TRADING, LLC | Reduced | $13.2m2.0m shares |
| GOLDMAN SACHS GROUP INC | New | $11.8m1.8m shares |
| PEAK6 LLC | Added | $10.2m1.5m shares |
| Balyasny Asset Management L.P. | New | $9.3m1.4m shares |
| JANE STREET GROUP, LLC | Reduced | $8.6m1.3m shares |
| IMC-Chicago, LLC | Reduced | $8.2m1.2m shares |
| GROUP ONE TRADING LLC | Reduced | $5.0m750.2k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-04-03 | 15.5% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.1% |
| D. E. SHAW & CO, L.P. 13G · passive investor new · filed 2026-07-17 | 5.0% |
Fell to 5% or below in the last year: BANK OF NOVA SCOTIA (3.9%, 2026-10-19), DIMENSIONAL FUND ADVISORS LP (3.8%, 2026-07-14), VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC), SUSQUEHANNA SECURITIES, LLC (4.8%, 2026-02-13)
Insider purchases and sales in Q1 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 1 | $416.8k | — |
| Q1 2024 | 0 | — | 4 | $32.6m | $17.5m |
| Q2 2024 | 0 | — | 1 | $44.1k | $44.1k |
| Q3 2024 | 0 | — | 2 | $256.9k | $51.5k |
| Q4 2024 | 0 | — | 2 | $49.5k | $49.5k |
| Q1 2025 | 0 | — | 7 | $693.3k | $2.5k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-03-24 | Wood Thomas Leigh Director | Sold | $357.3k44.4k shares |
| 2025-03-24 | Cavaleri Amanda Director | Sold | $103.6k13.0k shares |
| 2025-02-14 | Bradford Zachary CEO and President, director | Sold | $112.1k10.5k shares |
| 2025-02-14 | Schultz S. Matthew Executive Chairman, director | Sold | $95.9k9.0k shares |
| 2025-02-14 | Garrison Scott Eugene Chief Operating Officer | Sold | $14.2k1.3k shares |
| 2025-02-14 | Vecchiarelli Gary Anthony Chief Financial Officer | Sold | $7.6k717 shares |
| 2025-02-14 | Monnig Taylor Chief Technology Officer | Sold plan | $2.5k239 shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q1 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 44.7m $300.1m | Added +22.9m |
| VANGUARD GROUP INC 0.00% of their portfolio | 24.1m $162.3m | Added +4.5m |
| STATE STREET CORP 0.00% of their portfolio | 11.1m $74.8m | Added +4.3m |
| MORGAN STANLEY 0.00% of their portfolio | 9.6m $64.2m | Reduced -2.9m |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 7.4m $50.0m | Added +918.1k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 4.2m $28.5m | Added +3.2m |
| Tidal Investments LLC 0.22% of their portfolio | 3.9m $26.4m | Added +1.5m |
| Invesco Ltd. 0.00% of their portfolio | 3.6m $24.2m | Added +613.0k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 3.1m $21.0m | Added +652.8k |
| UBS Group AG 0.00% of their portfolio | 2.9m $19.3m | Added +520.3k |
| Fort Point Capital Partners LLC 2.15% of their portfolio | 2.9m $19.2m | Added +500.1k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 2.8m $18.9m | Added +388.0k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.03% of their portfolio | 2.7m $18.4m | Reduced -222.6k |
| VAN ECK ASSOCIATES CORP 0.02% of their portfolio | 2.5m $16.9m | Added +284.8k |
| BARCLAYS PLC 0.01% of their portfolio | 2.4m $16.3m | Added +1.7m |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 2.4m $16.0m | Added +654.8k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 1.6m $10.6m | Added +889.3k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 1.4m $9.3m | Added +1.4m |
| NOMURA HOLDINGS INC 0.05% of their portfolio | 1.3m $9.0m | Added +296.9k |
| Nuveen, LLC 0.00% of their portfolio | 1.2m $8.1m | First filing |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.02% of their portfolio | 1.1m $7.7m | Added +158.1k |
| Vident Advisory, LLC 0.10% of their portfolio | 1.0m $7.0m | Reduced -101.6k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 952.2k $6.4m | Added +859.2k |
| EXCHANGE TRADED CONCEPTS, LLC 0.11% of their portfolio | 889.5k $6.0m | Added +175.3k |
| Public Sector Pension Investment Board 0.03% of their portfolio | 881.7k $5.9m | New |
| STIFEL FINANCIAL CORP 0.01% of their portfolio | 880.7k $5.9m | Added +9.0k |
| SHARIAPORTFOLIO, INC. 3.01% of their portfolio | 861.4k $5.8m | Added +89.6k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 824.8k $5.5m | Added +533.4k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 720.9k $4.8m | Added +386.8k |
| Legal & General Group Plc 0.00% of their portfolio | 694.7k $4.7m | Added +462.4k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 659.5k $4.4m | Reduced -2.8m |
| IMC-Chicago, LLC 0.17% of their portfolio | 647.6k $4.4m | Reduced -798.0k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 599.0k $4.0m | Added +86.2k |
| BIT Capital GmbH 0.47% of their portfolio | 585.2k $3.9m | Reduced -29.9k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 569.2k $3.8m | Added +42.5k |
| Swiss National Bank 0.00% of their portfolio | 566.8k $3.8m | Added +68.9k |
| SIMPLEX TRADING, LLC 0.13% of their portfolio | 529.6k $3.6m | Reduced -457.4k |
| Jefferies Financial Group Inc. 0.06% of their portfolio | 518.6k $3.5m | Reduced -160.8k |
| CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT 0.21% of their portfolio | 500.5k $3.4m | Added +200.5k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 488.9k $3.3m | Reduced -399.7k |
| IEQ CAPITAL, LLC 0.02% of their portfolio | 465.0k $3.1m | Added +418.4k |
| Galaxy Digital Capital Management GP LLC 4.17% of their portfolio | 405.6k $2.7m | Reduced -236.7k |
| CITIGROUP INC 0.00% of their portfolio | 391.9k $2.6m | Added +169.3k |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.00% of their portfolio | 386.6k $2.6m | Added +104.8k |
| SEGALL BRYANT & HAMILL, LLC 0.04% of their portfolio | 380.8k $2.6m | New |
| NATIONAL BANK OF CANADA /FI/ 0.00% of their portfolio | 378.7k $2.5m | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 368.1k $2.5m | Added +20.7k |
| Magnetar Financial LLC 0.03% of their portfolio | 360.4k $2.4m | Reduced -51.9k |
| CONGRESS ASSET MANAGEMENT CO 0.02% of their portfolio | 349.9k $2.4m | New |
| Foundry Partners, LLC 0.12% of their portfolio | 343.4k $2.3m | New |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC 0.47% of their portfolio | 334.7k $2.2m | Added +250.0k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% of their portfolio | 329.8k $2.2m | New |
| Lido Advisors, LLC 0.01% of their portfolio | 324.0k $2.2m | Reduced -34 |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 318.2k $2.1m | Added +28.6k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 299.3k $2.0m | Added +225.9k |
| Maridea Wealth Management LLC 0.66% of their portfolio | 298.6k $2.0m | Added +138.8k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 292.2k $2.0m | Added +55.7k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 292.1k $2.0m | Added +6.8k |
| Clarity Capital Partners LLC 0.74% of their portfolio | 272.9k $1.8m | Added +62.3k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 267.7k $1.8m | Added +250.9k |
| Cetera Investment Advisers 0.00% of their portfolio | 250.8k $1.7m | Added +12.4k |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 228.8k $1.8m | Added +204.2k |
| WOLVERINE TRADING, LLC 0.05% of their portfolio | 227.9k $1.6m | Reduced -38.2k |
| AQR Arbitrage LLC 0.04% of their portfolio | 226.4k $1.5m | Reduced -27.0k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 223.6k $1.5m | Reduced -1.5m |
| ALGERT GLOBAL LLC 0.04% of their portfolio | 221.4k $1.5m | Added +22.5k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 218.9k $1.5m | New |
| Vontobel Holding Ltd. 0.01% of their portfolio | 214.4k $1.4m | Added +80.8k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 212.6k $1.4m | Added +21.6k |
| GROUP ONE TRADING LLC 0.06% of their portfolio | 203.9k $1.4m | New |
| Sculptor Capital LP 0.03% of their portfolio | 200.0k $1.3m | New |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 186.0k $1.3m | Reduced -3.6m |
| MARSHALL WACE, LLP 0.00% of their portfolio | 180.8k $1.2m | Reduced -338.6k |
| MIZUHO MARKETS AMERICAS LLC 0.03% of their portfolio | 173.7k $1.2m | Reduced -1.6m |
| MetLife Investment Management, LLC 0.01% of their portfolio | 161.7k $1.1m | Added +11.7k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 159.0k $1.1m | Added +138.8k |
| SG Americas Securities, LLC 0.00% of their portfolio | 158.9k $1.1m | Reduced -3.2k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 156.5k $1.1m | Added +6.9k |
| State of Alaska, Department of Revenue 0.01% of their portfolio | 154.0k $1.0m | New |
| INTECH INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 148.5k $998.2k | Added +10.0k |
| Hel Ved Capital Management Ltd 0.49% of their portfolio | 145.7k $979.1k | Reduced -285.2k |
| Corebridge Financial, Inc. 0.01% of their portfolio | 144.2k $969.1k | Added +20.5k |
| Sanctuary Advisors, LLC 0.01% of their portfolio | 141.7k $952.2k | Added +66.8k |
| SBI Securities Co., Ltd. 0.03% of their portfolio | 138.8k $932.8k | Reduced -7.7k |
| Louisiana State Employees Retirement System 0.02% of their portfolio | 130.9k $879.6k | New |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 129.7k $931.9k | Added +14.4k |
| TITLEIST ASSET MANAGEMENT, LLC 0.10% of their portfolio | 126.0k $847.0k | Reduced -18.1k |
| SRN Advisors, LLC 0.90% of their portfolio | 119.0k $799.6k | Reduced -7.4k |
| MATAURO, LLC 0.16% of their portfolio | 116.6k $783.4k | Added +37.2k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 115.4k $775.5k | Reduced -4.3k |
| Baird Financial Group, Inc. 0.00% of their portfolio | 109.7k $737.4k | Added +35.8k |
| YOUSIF CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 102.5k $689.0k | New |
| Galaxy Digital Capital Management LP 6.59% of their portfolio | 99.5k $674.1k | First filing |
| Cambridge Investment Research Advisors, Inc. 0.00% of their portfolio | 99.3k $667.0k | Added +12.4k |
| QUADRANT CAPITAL GROUP LLC 0.02% of their portfolio | 95.1k $639.0k | Added +15.4k |
| BANK OF MONTREAL /CAN/ 0.00% of their portfolio | 95.0k $638.6k | Reduced -23.1k |
| COMERICA BANK 0.00% of their portfolio | 93.4k $627.4k | New |
| Ensign Peak Advisors, Inc 0.00% of their portfolio | 91.6k $615.9k | Unchanged |
| TRUIST FINANCIAL CORP 0.00% of their portfolio | 88.9k $597.3k | Added +5.5k |
| Neo Ivy Capital Management 0.19% of their portfolio | 87.9k $591.0k | New |