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 ($2.2m this quarter). Holder counts are more reliable. Shares outstanding: 256.8m as of 2026-08-04, 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 ≈ $14.66. Options: 32 managers hold calls ($427.7m notional), 31 hold puts ($282.3m).
Trends to Q2 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 |
| Q2 2026 | 411 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| 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 |
| Q2 2026 | 222 | 155 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $697.9m | $491.9m | 0.70 |
| Q4 2025 | $470.6m | $261.7m | 0.56 |
| Q1 2026 | $270.7m | $199.0m | 0.74 |
| Q2 2026 | $427.7m | $282.3m | 0.66 |
Biggest buyers
| D. E. Shaw & Co., Inc. | Added | +4.8m |
| Point72 Asset Management, L.P. | Added | +4.4m |
| UBS Group AG | Added | +4.2m |
| MILLENNIUM MANAGEMENT LLC | Added | +2.3m |
| AMERICAN CENTURY COMPANIES INC | Added | +2.2m |
| JANE STREET GROUP, LLC | Added | +2.1m |
| Connor, Clark & Lunn Investment Management Ltd. | Added | +2.0m |
| Covalis Capital LLP | New | +2.0m |
| MIZUHO MARKETS AMERICAS LLC | New | +1.8m |
| BNP PARIBAS FINANCIAL MARKETS | Added | +1.7m |
Biggest sellers
| DIMENSIONAL FUND ADVISORS LP | Reduced | -4.5m |
| MORGAN STANLEY | Reduced | -3.7m |
| Marex Group Ltd | Reduced | -3.6m |
| BANK OF AMERICA CORP /DE/ | Reduced | -1.7m |
| Invesco Ltd. | Reduced | -1.4m |
| NOMURA HOLDINGS INC | Reduced | -1.1m |
| Tidal Investments LLC | Reduced | -915.2k |
| CLEARFIELD CAPITAL MANAGEMENT LP | Reduced | -871.3k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | -852.8k |
| CITADEL ADVISORS LLC | Reduced | -843.4k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $101.9m7.0m shares |
| JANE STREET GROUP, LLC | Added | $81.7m5.6m shares |
| CITADEL ADVISORS LLC | Reduced | $47.5m3.3m shares |
| NOMURA HOLDINGS INC | New | $44.4m3.0m shares |
| IMC-Chicago, LLC | Added | $19.6m1.3m shares |
| GROUP ONE TRADING LLC | Reduced | $18.4m1.3m shares |
| Caption Management, LLC | Added | $18.4m1.3m shares |
| Parallax Volatility Advisers, L.P. | Added | $17.3m1.2m shares |
| D. E. Shaw & Co., Inc. | Reduced | $16.3m1.1m shares |
| SIMPLEX TRADING, LLC | Reduced | $12.5m858.8k shares |
Biggest puts
| WOLVERINE ASSET MANAGEMENT LLC | Reduced | $60.9m4.2m shares |
| JANE STREET GROUP, LLC | Reduced | $55.9m3.8m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $49.6m3.4m shares |
| CITADEL ADVISORS LLC | Reduced | $18.3m1.3m shares |
| IMC-Chicago, LLC | Added | $17.9m1.2m shares |
| SIMPLEX TRADING, LLC | Reduced | $13.6m933.3k shares |
| BARCLAYS PLC | Reduced | $10.9m750.0k shares |
| GROUP ONE TRADING LLC | Reduced | $9.3m640.8k shares |
| Walleye Trading LLC | Added | $8.3m569.4k shares |
| PEAK6 LLC | Reduced | $4.1m280.2k 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 since 1 Apr 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 |
|---|---|---|---|---|---|
| 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 | — | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 1 | $394.4k | $394.4k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-08 | Monnig Taylor CTO, COO | Sold plan | $336.8k25.2k shares |
| 2026-09-04 | Monnig Taylor CTO, COO | Sold plan | $56.9k4.5k shares |
| 2026-08-14 | Monnig Taylor CTO, COO | Sold plan | $62254 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, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 42.3m $615.9m | Added +590.1k |
| Situational Awareness LP 0.89% of their portfolio | 12.3m $178.6m | Unchanged |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.01% of their portfolio | 11.5m $166.7m | Added +366.7k |
| D. E. Shaw & Co., Inc. 0.10% of their portfolio | 11.3m $163.8m | Added +4.8m |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 11.1m $161.8m | Added +50.5k |
| STATE STREET CORP 0.00% of their portfolio | 11.0m $160.1m | Added +6.1k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 9.6m $140.4m | Reduced -4.5m |
| UBS Group AG 0.02% of their portfolio | 7.6m $109.9m | Added +4.2m |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 7.3m $132.9m | Added +119.1k |
| Point72 Asset Management, L.P. 0.13% of their portfolio | 6.0m $86.9m | Added +4.4m |
| Invesco Ltd. 0.00% of their portfolio | 3.6m $52.5m | Reduced -1.4m |
| Nuveen, LLC 0.01% of their portfolio | 3.5m $50.8m | Added +392.9k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 3.4m $50.0m | Added +15.4k |
| JANE STREET GROUP, LLC 0.03% of their portfolio | 3.4m $49.2m | Added +2.1m |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 3.2m $46.6m | Added +172.3k |
| MORGAN STANLEY 0.00% of their portfolio | 3.1m $44.5m | Reduced -3.7m |
| NORTHERN TRUST CORP 0.00% of their portfolio | 2.9m $42.3m | Added +143.2k |
| VAN ECK ASSOCIATES CORP 0.03% of their portfolio | 2.9m $42.1m | Reduced -40.9k |
| MILLENNIUM MANAGEMENT LLC 0.03% of their portfolio | 2.6m $37.6m | Added +2.3m |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 2.3m $33.3m | Added +2.2m |
| Connor, Clark & Lunn Investment Management Ltd. 0.06% of their portfolio | 2.2m $31.7m | Added +2.0m |
| Covalis Capital LLP 1.62% of their portfolio | 2.0m $28.7m | New |
| MIZUHO MARKETS AMERICAS LLC 0.48% of their portfolio | 1.8m $26.8m | New |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 1.7m $24.9m | Added +1.7m |
| Bank of New York Mellon Corp 0.00% of their portfolio | 1.7m $24.7m | Reduced -32.5k |
| VANGUARD FIDUCIARY TRUST CO 0.01% of their portfolio | 1.7m $24.6m | Added +47.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.7m $25.7m | Added +492.4k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.02% of their portfolio | 1.6m $23.7m | Reduced -852.8k |
| TUDOR INVESTMENT CORP ET AL 0.10% of their portfolio | 1.6m $23.6m | New |
| Qube Research & Technologies Ltd 0.03% of their portfolio | 1.6m $23.3m | New |
| HRT FINANCIAL LP 0.06% of their portfolio | 1.6m $23.2m | Reduced -704.6k |
| T. Rowe Price Investment Management, Inc. 0.02% of their portfolio | 1.6m $23.0m | New |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.03% of their portfolio | 1.5m $21.7m | Reduced -50.6k |
| BARCLAYS PLC 0.01% of their portfolio | 1.5m $21.1m | Reduced -622.3k |
| Jefferies Financial Group Inc. 0.19% of their portfolio | 1.4m $21.0m | Added +1.4m |
| Vident Advisory, LLC 0.15% of their portfolio | 1.4m $20.7m | Added +118.5k |
| NOMURA HOLDINGS INC 0.08% of their portfolio | 1.4m $19.7m | Reduced -1.1m |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 1.3m $18.4m | Reduced -843.4k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 1.2m $18.0m | Reduced -2.7k |
| Hudson Bay Capital Management LP 0.08% of their portfolio | 1.2m $17.5m | New |
| Trexquant Investment LP 0.10% of their portfolio | 1.1m $15.9m | New |
| Bitwise Funds Trust 3.62% of their portfolio | 1.1m $15.4m | First filing |
| EXCHANGE TRADED CONCEPTS, LLC 0.07% of their portfolio | 1.0m $14.7m | Reduced -689.2k |
| Tidal Investments LLC 0.04% of their portfolio | 999.5k $14.5m | Reduced -915.2k |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC 1.66% of their portfolio | 924.7k $13.5m | Added +30.0k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 917.6k $13.4m | Added +627.9k |
| Public Sector Pension Investment Board 0.03% of their portfolio | 881.6k $12.8m | Reduced -33.4k |
| STIFEL FINANCIAL CORP 0.01% of their portfolio | 839.1k $12.2m | Reduced -5.8k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 834.1k $12.1m | Reduced -1.7m |
| Squarepoint Ops LLC 0.02% of their portfolio | 787.4k $11.5m | Added +720.2k |
| Goodlander Investment Management, LLC 3.39% of their portfolio | 770.8k $11.2m | New |
| Assenagon Asset Management S.A. 0.01% of their portfolio | 758.9k $11.0m | New |
| Beartown Capital Management, LLC 4.84% of their portfolio | 750.0k $10.9m | Reduced -800.0k |
| Boundless Plain Holdings Ltd 2.48% of their portfolio | 734.6k $10.7m | Unchanged |
| Balyasny Asset Management L.P. 0.02% of their portfolio | 666.3k $9.7m | New |
| NATIXIS 0.04% of their portfolio | 640.8k $9.3m | New |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 636.0k $9.3m | Reduced -10.9k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 615.9k $9.0m | Reduced -67.3k |
| Legal & General Group Plc 0.00% of their portfolio | 571.0k $8.3m | Added +52.6k |
| Fort Point Capital Partners LLC 0.87% of their portfolio | 559.1k $8.1m | Reduced -150.0k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 517.6k $7.5m | Added +423.7k |
| Headlands Technologies LLC 0.79% of their portfolio | 512.5k $7.5m | Added +349.7k |
| Swiss National Bank 0.00% of their portfolio | 500.4k $7.3m | Reduced -5.4k |
| Alight Capital Management LP 1.18% of their portfolio | 500.0k $7.3m | Unchanged |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 493.1k $7.2m | Added +77.0k |
| VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 477.2k $6.9m | Reduced -35.0k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 471.5k $6.9m | Reduced -25.8k |
| CLEARFIELD CAPITAL MANAGEMENT LP 4.78% of their portfolio | 468.5k $6.8m | Reduced -871.3k |
| CONGRESS ASSET MANAGEMENT CO 0.04% of their portfolio | 419.7k $6.1m | Added +4.5k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 409.4k $6.0m | Added +41.2k |
| Empowered Funds, LLC 0.03% of their portfolio | 398.4k $5.8m | Added +146.7k |
| Summit Financial, LLC 0.06% of their portfolio | 391.6k $5.7m | Added +21.7k |
| XTX Topco Ltd 0.07% of their portfolio | 384.4k $5.6m | Added +345.5k |
| ALGERT GLOBAL LLC 0.06% of their portfolio | 365.3k $5.3m | Reduced -108.4k |
| Allspring Global Investments Holdings, LLC 0.01% of their portfolio | 361.3k $4.9m | New |
| Galaxy Digital Capital Management GP LLC 3.15% of their portfolio | 360.5k $5.2m | Reduced -273.7k |
| SHARIAPORTFOLIO, INC. 1.81% of their portfolio | 352.5k $5.1m | Reduced -217.4k |
| Axxion S.A. 0.36% of their portfolio | 350.0k $5.1m | First filing |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.00% of their portfolio | 340.6k $5.0m | Reduced -172.3k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 334.0k $4.9m | Added +94.7k |
| Entropy Technologies, LP 0.19% of their portfolio | 331.2k $4.8m | New |
| BESSEMER GROUP INC 0.01% of their portfolio | 327.0k $4.8m | Added +324.1k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 310.3k $2.6m | Added +7.2k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 287.4k $4.2m | Reduced -13.3k |
| Quadrature Capital Ltd 0.03% of their portfolio | 281.0k $4.1m | Added +258.1k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 263.9k $3.8m | Added +2.4k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 249.5k $3.6m | Reduced -34.5k |
| Brevan Howard Capital Management LP 0.05% of their portfolio | 249.3k $3.6m | Reduced -299.3k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 234.5k $3.4m | Added +4.8k |
| IMC-Chicago, LLC 0.03% of their portfolio | 233.8k $3.4m | Reduced -167.9k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 228.8k $3.3m | New |
| CAPITAL FUND MANAGEMENT S.A. 0.02% of their portfolio | 216.4k $3.1m | New |
| Maridea Wealth Management LLC 0.33% of their portfolio | 207.0k $3.0m | Reduced -93.5k |
| DE BURLO GROUP INC 0.55% of their portfolio | 205.7k $3.0m | New |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 203.1k $3.0m | Added +129.0k |
| Defiance ETFs, LLC 0.04% of their portfolio | 198.0k $2.7m | Added +94.7k |
| SG Americas Securities, LLC 0.00% of their portfolio | 196.3k $2.9m | Reduced -307.0k |
| Cetera Investment Advisers 0.00% of their portfolio | 191.5k $2.8m | Reduced -80.0k |
| Perigon Wealth Management, LLC 0.04% of their portfolio | 184.9k $2.7m | New |
| CITIGROUP INC 0.00% of their portfolio | 181.6k $2.6m | Added +101.1k |