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 ($598.0k this quarter). Holder counts are more reliable. Shares outstanding: 256.6m as of 2026-05-07, 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 ≈ $8.51. Options: 29 managers hold calls ($270.7m notional), 31 hold puts ($199.0m).
Trends to Q1 2026
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 |
| Q2 2025 | 308 |
| Q3 2025 | 334 |
| Q4 2025 | 381 |
| Q1 2026 | 354 |
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 2024 | 156 | 90 |
| Q3 2024 | 143 | 100 |
| Q4 2024 | 165 | 92 |
| Q1 2025 | 190 | 109 |
| Q2 2025 | 160 | 140 |
| Q3 2025 | 186 | 134 |
| Q4 2025 | 209 | 156 |
| Q1 2026 | 157 | 217 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $495.4m | $350.9m | 0.71 |
| Q3 2025 | $697.9m | $491.9m | 0.70 |
| Q4 2025 | $470.6m | $261.7m | 0.56 |
| Q1 2026 | $270.7m | $199.0m | 0.74 |
Biggest buyers
| Situational Awareness LP | Added | +10.6m |
| DIMENSIONAL FUND ADVISORS LP | Added | +6.3m |
| D. E. Shaw & Co., Inc. | Added | +3.7m |
| HRT FINANCIAL LP | New | +2.3m |
| CITADEL ADVISORS LLC | New | +2.1m |
| Point72 Asset Management, L.P. | New | +1.6m |
| Beartown Capital Management, LLC | New | +1.6m |
| BANK OF AMERICA CORP /DE/ | Added | +1.5m |
| Nuveen, LLC | Added | +1.4m |
| JANE STREET GROUP, LLC | Added | +825.9k |
Biggest sellers
| BlackRock, Inc. | Reduced | -2.9m |
| RENAISSANCE TECHNOLOGIES LLC | Sold out | -2.6m |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Sold out | -2.3m |
| Tidal Investments LLC | Reduced | -1.9m |
| MIZUHO MARKETS AMERICAS LLC | Sold out | -1.7m |
| Marex Group Ltd | Reduced | -1.6m |
| SONA ASSET MANAGEMENT (US) LLC | Sold out | -919.5k |
| Trexquant Investment LP | Sold out | -909.6k |
| BIT Capital GmbH | Sold out | -883.7k |
| Jefferies Financial Group Inc. | Reduced | -869.5k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $65.7m7.7m shares |
| JANE STREET GROUP, LLC | Added | $44.1m5.2m shares |
| CITADEL ADVISORS LLC | Reduced | $34.4m4.0m shares |
| Jefferies Financial Group Inc. | Added | $20.0m2.4m shares |
| GROUP ONE TRADING LLC | Reduced | $14.7m1.7m shares |
| Beartown Capital Management, LLC | New | $14.5m1.7m shares |
| SIMPLEX TRADING, LLC | Reduced | $12.1m1.4m shares |
| D. E. Shaw & Co., Inc. | Added | $11.3m1.3m shares |
| IMC-Chicago, LLC | Reduced | $9.6m1.1m shares |
| SCOGGIN MANAGEMENT LP | New | $6.4m750.0k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $39.5m4.6m shares |
| WOLVERINE ASSET MANAGEMENT LLC | Added | $38.9m4.6m shares |
| JANE STREET GROUP, LLC | Added | $33.1m3.9m shares |
| CITADEL ADVISORS LLC | Added | $14.2m1.7m shares |
| Point72 Asset Management, L.P. | Reduced | $10.4m1.2m shares |
| SIMPLEX TRADING, LLC | Reduced | $9.0m1.1m shares |
| GROUP ONE TRADING LLC | Added | $8.7m1.0m shares |
| IMC-Chicago, LLC | Reduced | $8.4m986.4k shares |
| BARCLAYS PLC | New | $6.6m780.0k shares |
| Balyasny Asset Management L.P. | Added | $5.9m689.7k 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 2026
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 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 |
| Q2 2025 | 0 | — | 1 | $525.5k | — |
| Q3 2025 | 0 | — | 1 | $581.1k | — |
| Q4 2025 | 0 | — | 2 | $1.5m | — |
| Q1 2026 | 0 | — | 0 | — | — |
None reported in Q1 2026.
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 41.7m $355.2m | Reduced -2.9m |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 14.1m $120.0m | Added +6.3m |
| Situational Awareness Partners LP 2.71% of their portfolio | 12.3m $104.5m | First filing |
| Situational Awareness LP 2.71% of their portfolio | 12.3m $104.5m | Added +10.6m |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 11.1m $94.4m | First filing |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 11.1m $94.2m | First filing |
| STATE STREET CORP 0.00% of their portfolio | 11.0m $93.6m | Reduced -459.4k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 7.1m $60.8m | Reduced -270.0k |
| MORGAN STANLEY 0.00% of their portfolio | 6.8m $57.5m | Added +572.5k |
| D. E. Shaw & Co., Inc. 0.04% of their portfolio | 6.4m $54.7m | Added +3.7m |
| Invesco Ltd. 0.00% of their portfolio | 5.0m $42.4m | Added +574.7k |
| Marex Group Ltd 0.33% of their portfolio | 3.8m $32.2m | Reduced -1.6m |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 3.4m $29.1m | Reduced -243.1k |
| UBS Group AG 0.01% of their portfolio | 3.3m $28.2m | Reduced -264.2k |
| Nuveen, LLC 0.01% of their portfolio | 3.1m $26.3m | Added +1.4m |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 3.0m $25.8m | Reduced -515.4k |
| VAN ECK ASSOCIATES CORP 0.02% of their portfolio | 2.9m $25.0m | Added +357.7k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 2.8m $23.5m | Reduced -45.6k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 2.6m $21.9m | Added +1.5m |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.03% of their portfolio | 2.5m $21.1m | Added +411.9k |
| NOMURA HOLDINGS INC 0.18% of their portfolio | 2.5m $21.1m | Added +153.3k |
| HRT FINANCIAL LP 0.07% of their portfolio | 2.3m $19.6m | New |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 2.1m $17.9m | New |
| BARCLAYS PLC 0.01% of their portfolio | 2.1m $17.6m | Reduced -460.9k |
| Tidal Investments LLC 0.05% of their portfolio | 1.9m $16.3m | Reduced -1.9m |
| Bank of New York Mellon Corp 0.00% of their portfolio | 1.7m $14.7m | Reduced -206.3k |
| EXCHANGE TRADED CONCEPTS, LLC 0.11% of their portfolio | 1.7m $14.5m | Added +551.2k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 1.6m $14.0m | First filing |
| Point72 Asset Management, L.P. 0.02% of their portfolio | 1.6m $13.6m | New |
| Beartown Capital Management, LLC 10.41% of their portfolio | 1.6m $13.2m | New |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.02% of their portfolio | 1.5m $13.1m | Reduced -158.2k |
| CLEARFIELD CAPITAL MANAGEMENT LP 6.25% of their portfolio | 1.3m $11.4m | Added +6.2k |
| Vident Advisory, LLC 0.09% of their portfolio | 1.3m $11.1m | Reduced -99.2k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 1.3m $11.1m | Added +825.9k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 1.2m $10.6m | Reduced -96.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.2m $9.6m | Reduced -340.2k |
| Public Sector Pension Investment Board 0.02% of their portfolio | 915.0k $7.8m | Reduced -57.8k |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC 1.39% of their portfolio | 894.7k $7.6m | Added +770.0k |
| STIFEL FINANCIAL CORP 0.01% of their portfolio | 844.9k $7.2m | Reduced -21.2k |
| Boundless Plain Holdings Ltd 2.06% of their portfolio | 734.6k $6.3m | New |
| Fort Point Capital Partners LLC 0.79% of their portfolio | 709.1k $6.0m | Reduced -400.0k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 683.3k $5.8m | Reduced -76.8k |
| SIH Partners, LLLP 0.18% of their portfolio | 673.5k $5.7m | New |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 646.9k $5.5m | Reduced -14.6k |
| Vennlight Capital Management, LP 5.55% of their portfolio | 644.9k $5.5m | New |
| Galaxy Digital Capital Management GP LLC 6.95% of their portfolio | 634.2k $5.4m | Added +127.5k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.12% of their portfolio | 631.2k $5.4m | Added +515.1k |
| LMR Partners LLP 0.05% of their portfolio | 611.4k $5.2m | New |
| Clearline Capital LP 0.39% of their portfolio | 592.0k $5.0m | New |
| SHARIAPORTFOLIO, INC. 2.15% of their portfolio | 569.9k $4.9m | Reduced -214.9k |
| Brevan Howard Capital Management LP 0.05% of their portfolio | 548.6k $4.7m | Reduced -21.2k |
| Legal & General Group Plc 0.00% of their portfolio | 518.5k $4.4m | Reduced -130.1k |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.00% of their portfolio | 512.9k $4.4m | Added +20.3k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 512.3k $4.4m | Reduced -28.7k |
| Swiss National Bank 0.00% of their portfolio | 505.8k $4.3m | Reduced -48.4k |
| SG Americas Securities, LLC 0.00% of their portfolio | 503.3k $4.3m | Reduced -625.0k |
| Alight Capital Management LP 1.24% of their portfolio | 500.0k $4.3m | Added +150.0k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 497.3k $4.2m | Reduced -9.6k |
| ALGERT GLOBAL LLC 0.06% of their portfolio | 473.7k $4.0m | Added +265.4k |
| CSM Advisors, LLC 0.09% of their portfolio | 451.7k $3.8m | Added +59.9k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 416.0k $3.5m | Reduced -233.6k |
| CONGRESS ASSET MANAGEMENT CO 0.03% of their portfolio | 415.2k $3.5m | Added +56.0k |
| IMC-Chicago, LLC 0.05% of their portfolio | 401.7k $3.4m | Reduced -212.5k |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. 0.21% of their portfolio | 391.4k $3.3m | Added +45.6k |
| Summit Financial, LLC 0.04% of their portfolio | 369.9k $3.1m | Added +53.8k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 368.2k $3.1m | Added +2.2k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 328.7k $2.8m | Reduced -161.0k |
| SIMPLEX TRADING, LLC 0.08% of their portfolio | 312.3k $2.7m | Added +86.7k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 303.1k $3.1m | Reduced -23.1k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 300.7k $2.6m | Added +30.7k |
| Maridea Wealth Management LLC 0.37% of their portfolio | 300.6k $2.6m | Added +39.6k |
| SCOGGIN MANAGEMENT LP 1.00% of their portfolio | 300.0k $2.6m | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 289.7k $2.5m | Added +23.2k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 284.0k $2.4m | Reduced -57.8k |
| Cetera Investment Advisers 0.00% of their portfolio | 271.5k $2.3m | Reduced -2.5k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 261.5k $2.2m | Reduced -34.1k |
| Marnell Management LLC 1.44% of their portfolio | 254.4k $2.2m | New |
| Empowered Funds, LLC 0.01% of their portfolio | 251.7k $2.1m | New |
| Fiduciary Alliance LLC 0.16% of their portfolio | 240.2k $2.7m | Added +22.6k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 239.3k $2.0m | Reduced -224.1k |
| ExodusPoint Capital Management, LP 0.02% of their portfolio | 231.0k $2.0m | New |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 229.6k $2.0m | First filing |
| Feynman Point Asset Management LLC 6.25% of their portfolio | 213.3k $1.8m | Added +36.5k |
| GROUP ONE TRADING LLC 0.06% of their portfolio | 195.9k $1.7m | Reduced -243.2k |
| Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio | 181.2k $1.5m | New |
| INTECH INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 177.3k $1.5m | Added +55.3k |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 170.7k $1.5m | Reduced -22.4k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% of their portfolio | 165.9k $1.4m | Reduced -74.2k |
| Headlands Technologies LLC 0.16% of their portfolio | 162.8k $1.4m | New |
| Walleye Capital LLC 0.01% of their portfolio | 151.7k $1.3m | Reduced -527.8k |
| Janney Montgomery Scott LLC 0.00% of their portfolio | 149.5k $1.3m | Added +59.8k |
| TORONTO DOMINION BANK 0.00% of their portfolio | 148.8k $1.3m | Added +138.4k |
| Harvest Portfolios Group Inc. 0.02% of their portfolio | 146.7k $1.2m | Reduced -9.7k |
| Shay Capital LLC 0.18% of their portfolio | 145.0k $1.2m | New |
| MetLife Investment Management, LLC 0.01% of their portfolio | 138.2k $1.2m | Reduced -20.1k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 134.4k $1.1m | Added +50.1k |
| Covestor Ltd 0.77% of their portfolio | 131.0k $1.1m | Added +131.0k |
| State of Alaska, Department of Revenue 0.01% of their portfolio | 126.1k $1.1m | Reduced -17.4k |
| State of Tennessee, Department of Treasury 0.00% of their portfolio | 125.2k $1.1m | Added +24.4k |
| Benchmark Financial, LLC 0.95% of their portfolio | 124.0k $1.1m | Unchanged |