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 ($10.0m this quarter). Holder counts are more reliable. Shares outstanding: 281.1m as of 2025-08-01, 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 ≈ $14.51. Options: 36 managers hold calls ($697.9m notional), 26 hold puts ($491.9m).
Trends to Q3 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 |
| Q2 2025 | 308 |
| Q3 2025 | 334 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2023 | 108 | 56 |
| Q1 2024 | 149 | 70 |
| Q2 2024 | 156 | 90 |
| Q3 2024 | 143 | 100 |
| Q4 2024 | 165 | 92 |
| Q1 2025 | 190 | 109 |
| Q2 2025 | 160 | 140 |
| Q3 2025 | 186 | 134 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q4 2024 | $342.6m | $250.8m | 0.73 |
| Q1 2025 | $243.5m | $175.0m | 0.72 |
| Q2 2025 | $495.4m | $350.9m | 0.71 |
| Q3 2025 | $697.9m | $491.9m | 0.70 |
Biggest buyers
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | New | +3.9m |
| D. E. Shaw & Co., Inc. | New | +3.6m |
| Beryl Capital Management LLC | New | +2.0m |
| Point72 Asset Management, L.P. | New | +2.0m |
| NOMURA HOLDINGS INC | New | +1.7m |
| DIMENSIONAL FUND ADVISORS LP | Added | +1.6m |
| TUDOR INVESTMENT CORP ET AL | Added | +1.4m |
| Azora Capital LP | New | +1.1m |
| MILLENNIUM MANAGEMENT LLC | Added | +1.0m |
| Squarepoint Ops LLC | Added | +929.1k |
Biggest sellers
| MORGAN STANLEY | Reduced | -4.2m |
| ROYAL BANK OF CANADA | Reduced | -2.6m |
| UBS Group AG | Reduced | -1.4m |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | -912.6k |
| VAN ECK ASSOCIATES CORP | Reduced | -853.2k |
| Fort Point Capital Partners LLC | Reduced | -504.1k |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC | Reduced | -470.0k |
| NATIONAL BANK OF CANADA /FI/ | Sold out | -378.7k |
| GOLDMAN SACHS GROUP INC | Reduced | -333.9k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | -328.7k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $187.5m12.9m shares |
| CITADEL ADVISORS LLC | Added | $107.2m7.4m shares |
| SIMPLEX TRADING, LLC | Added | $50.6m3.5m shares |
| GROUP ONE TRADING LLC | Reduced | $49.8m3.4m shares |
| JANE STREET GROUP, LLC | Reduced | $44.0m3.0m shares |
| IMC-Chicago, LLC | Added | $38.9m2.7m shares |
| Jefferies Financial Group Inc. | Reduced | $36.2m2.5m shares |
| PEAK6 LLC | Reduced | $33.1m2.3m shares |
| WOLVERINE TRADING, LLC | Added | $21.5m1.4m shares |
| Centiva Capital, LP | New | $14.2m982.1k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $119.6m8.2m shares |
| WOLVERINE ASSET MANAGEMENT LLC | Added | $80.9m5.6m shares |
| CITADEL ADVISORS LLC | Added | $55.9m3.9m shares |
| SIMPLEX TRADING, LLC | Added | $41.3m2.8m shares |
| JANE STREET GROUP, LLC | Added | $29.7m2.0m shares |
| GOLDMAN SACHS GROUP INC | Unchanged | $25.4m1.8m shares |
| PEAK6 LLC | Reduced | $21.0m1.5m shares |
| GROUP ONE TRADING LLC | Added | $17.9m1.2m shares |
| IMC-Chicago, LLC | Added | $17.4m1.2m shares |
| D. E. Shaw & Co., Inc. | New | $15.7m1.1m 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 Q3 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 |
|---|---|---|---|---|---|
| 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 |
| Q2 2025 | 0 | — | 1 | $525.5k | — |
| Q3 2025 | 0 | — | 1 | $581.1k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-09-09 | Monnig Taylor CTO, COO | Sold | $581.1k63.7k 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, Q3 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 44.4m $644.3m | Added +148.9k |
| VANGUARD GROUP INC 0.01% of their portfolio | 26.1m $377.8m | Added +769.1k |
| STATE STREET CORP 0.01% of their portfolio | 11.0m $159.8m | Reduced -60.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 7.5m $108.6m | Reduced -47.6k |
| MORGAN STANLEY 0.01% of their portfolio | 6.3m $91.8m | Reduced -4.2m |
| Invesco Ltd. 0.01% of their portfolio | 4.5m $65.0m | Added +810.2k |
| Tidal Investments LLC 0.27% of their portfolio | 4.4m $63.3m | Added +519.7k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 4.3m $62.5m | Added +1.6m |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.19% of their portfolio | 3.9m $56.1m | New |
| D. E. Shaw & Co., Inc. 0.04% of their portfolio | 3.6m $51.6m | New |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 3.5m $50.2m | Added +209.3k |
| CITADEL ADVISORS LLC 0.04% of their portfolio | 3.4m $49.0m | Added +790.7k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 3.3m $47.8m | Reduced -333.9k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 3.0m $43.4m | Added +40.7k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.05% of their portfolio | 2.2m $31.5m | Added +394.7k |
| VAN ECK ASSOCIATES CORP 0.03% of their portfolio | 2.1m $30.8m | Reduced -853.2k |
| BARCLAYS PLC 0.01% of their portfolio | 2.0m $29.5m | Reduced -260.2k |
| Beryl Capital Management LLC 56.38% of their portfolio | 2.0m $29.3m | New |
| UBS Group AG 0.01% of their portfolio | 2.0m $28.7m | Reduced -1.4m |
| Point72 Asset Management, L.P. 0.06% of their portfolio | 2.0m $28.4m | New |
| TUDOR INVESTMENT CORP ET AL 0.16% of their portfolio | 1.7m $25.1m | Added +1.4m |
| NOMURA HOLDINGS INC 0.11% of their portfolio | 1.7m $24.7m | New |
| Bank of New York Mellon Corp 0.00% of their portfolio | 1.7m $24.4m | Added +2.7k |
| Squarepoint Ops LLC 0.05% of their portfolio | 1.6m $23.3m | Added +929.1k |
| MILLENNIUM MANAGEMENT LLC 0.02% of their portfolio | 1.6m $23.2m | Added +1.0m |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.03% of their portfolio | 1.5m $21.8m | Reduced -912.6k |
| EXCHANGE TRADED CONCEPTS, LLC 0.20% of their portfolio | 1.4m $20.5m | Added +373.3k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 1.4m $19.7m | Reduced -22.1k |
| Clear Street Group Inc. 0.10% of their portfolio | 1.3m $19.5m | First filing |
| Vident Advisory, LLC 0.18% of their portfolio | 1.3m $18.3m | Added +109.4k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.2m $17.7m | Added +843.4k |
| Fort Point Capital Partners LLC 2.04% of their portfolio | 1.1m $16.1m | Reduced -504.1k |
| Public Sector Pension Investment Board 0.06% of their portfolio | 1.1m $15.9m | Added +148.2k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 1.1m $15.6m | Reduced -2.6m |
| Azora Capital LP 0.71% of their portfolio | 1.1m $15.3m | New |
| STIFEL FINANCIAL CORP 0.01% of their portfolio | 889.9k $12.9m | Reduced -42.1k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 887.2k $12.9m | Added +566.7k |
| Nuveen, LLC 0.00% of their portfolio | 851.6k $12.3m | Added +194.0k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 785.3k $11.4m | New |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 779.6k $11.3m | Reduced -1.5k |
| MIZUHO MARKETS AMERICAS LLC 0.22% of their portfolio | 720.9k $10.5m | Added +419.2k |
| CAPITAL FUND MANAGEMENT S.A. 0.10% of their portfolio | 712.3k $10.3m | New |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 707.9k $10.3m | Reduced -95.4k |
| BIT Capital GmbH 0.46% of their portfolio | 689.2k $10.0m | Added +66.7k |
| Legal & General Group Plc 0.00% of their portfolio | 682.2k $9.9m | Reduced -22.3k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 629.3k $9.1m | New |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.01% of their portfolio | 609.0k $8.8m | Added +100.5k |
| FIRST TRUST ADVISORS LP 0.01% of their portfolio | 602.5k $8.7m | Added +444.7k |
| Cubist Systematic Strategies, LLC 0.12% of their portfolio | 563.9k $8.2m | New |
| SHARIAPORTFOLIO, INC. 3.08% of their portfolio | 555.8k $8.1m | Reduced -133.7k |
| Jump Financial, LLC 0.10% of their portfolio | 545.6k $7.9m | Reduced -54.2k |
| Swiss National Bank 0.00% of their portfolio | 544.8k $7.9m | Added +8.3k |
| BI Asset Management Fondsmaeglerselskab A/S 0.06% of their portfolio | 495.3k $7.2m | Added +374.7k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 483.6k $7.0m | Reduced -328.7k |
| Galaxy Digital Capital Management GP LLC 6.77% of their portfolio | 478.3k $6.9m | Added +305.6k |
| Magnetar Financial LLC 0.04% of their portfolio | 424.8k $6.2m | Added +365.8k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 352.9k $5.1m | Added +26.5k |
| CONGRESS ASSET MANAGEMENT CO 0.03% of their portfolio | 348.9k $5.1m | Reduced -971 |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 345.4k $5.0m | Reduced -124 |
| GROUP ONE TRADING LLC 0.15% of their portfolio | 338.0k $4.9m | Added +240.6k |
| SEGALL BRYANT & HAMILL, LLC 0.06% of their portfolio | 335.6k $4.9m | New |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 331.2k $4.8m | Added +180.4k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.01% of their portfolio | 319.6k $4.6m | Reduced -3.7k |
| CSM Advisors, LLC 0.13% of their portfolio | 319.0k $4.6m | Reduced -11.6k |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 292.9k $4.2m | Added +4.5k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 282.5k $4.1m | Added +37.2k |
| Baird Financial Group, Inc. 0.01% of their portfolio | 279.2k $4.0m | Reduced -40.8k |
| ALGERT GLOBAL LLC 0.07% of their portfolio | 277.5k $4.0m | Added +40.5k |
| Summit Financial, LLC 0.06% of their portfolio | 277.2k $4.0m | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 264.9k $3.8m | Reduced -9.8k |
| Maridea Wealth Management LLC 0.83% of their portfolio | 260.9k $5.3m | Reduced -4.0k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 251.5k $3.6m | Added +14.6k |
| SIMPLEX TRADING, LLC 0.08% of their portfolio | 251.2k $3.6m | Reduced -160.7k |
| Brevan Howard Capital Management LP 0.05% of their portfolio | 251.0k $3.6m | Added +185.1k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 248.1k $3.6m | Added +1.9k |
| Cetera Investment Advisers 0.00% of their portfolio | 239.8k $3.5m | Added +9.3k |
| Harvest Portfolios Group Inc. 0.06% of their portfolio | 234.6k $3.4m | Added +86.9k |
| Balyasny Asset Management L.P. 0.01% of their portfolio | 233.7k $3.4m | New |
| ExodusPoint Capital Management, LP 0.04% of their portfolio | 217.4k $3.2m | New |
| Aurelius Capital Management, LP 5.45% of their portfolio | 207.4k $3.0m | New |
| HighTower Advisors, LLC 0.00% of their portfolio | 206.3k $3.0m | Added +160.7k |
| Thrivent Financial for Lutherans 0.01% of their portfolio | 202.8k $2.9m | Reduced -1.7k |
| X-Square Capital, LLC 0.91% of their portfolio | 200.0k $2.9m | New |
| Walleye Trading LLC 0.05% of their portfolio | 195.9k $2.8m | Added +192.3k |
| MetLife Investment Management, LLC 0.01% of their portfolio | 166.2k $2.4m | Unchanged |
| Walleye Capital LLC 0.02% of their portfolio | 157.6k $2.3m | Added +54.1k |
| Neo Ivy Capital Management 0.52% of their portfolio | 147.5k $2.1m | New |
| MATAURO, LLC 0.33% of their portfolio | 142.3k $2.1m | Added +27.8k |
| Sanctuary Advisors, LLC 0.00% of their portfolio | 141.7k $952.2k | Added +129.8k |
| State of Alaska, Department of Revenue 0.02% of their portfolio | 141.4k $2.0m | Reduced -24.1k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 138.8k $2.0m | Reduced -6.5k |
| Quantitative Investment Management, LLC 0.27% of their portfolio | 135.1k $2.0m | Added +43.4k |
| SG Americas Securities, LLC 0.01% of their portfolio | 134.4k $1.9m | Added +89.8k |
| IMC-Chicago, LLC 0.03% of their portfolio | 130.2k $1.9m | Reduced -121.1k |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 129.7k $1.9m | Unchanged |
| Creative Planning 0.00% of their portfolio | 129.7k $1.9m | Added +15.6k |
| Louisiana State Employees Retirement System 0.03% of their portfolio | 129.2k $1.9m | Reduced -700 |
| STEVENS CAPITAL MANAGEMENT LP 0.24% of their portfolio | 123.1k $1.8m | Added +103.8k |
| Quantbot Technologies LP 0.05% of their portfolio | 122.9k $1.8m | New |
| Jefferies Financial Group Inc. 0.02% of their portfolio | 120.3k $1.7m | Reduced -61.5k |