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 ($850.9k 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 ≈ $11.02. Options: 36 managers hold calls ($495.4m notional), 29 hold puts ($350.9m).
Trends to Q2 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 |
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 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 |
| Q2 2025 | 160 | 140 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $180.1m | $138.6m | 0.77 |
| Q4 2024 | $342.6m | $250.8m | 0.73 |
| Q1 2025 | $243.5m | $175.0m | 0.72 |
| Q2 2025 | $495.4m | $350.9m | 0.71 |
Biggest buyers
| ROYAL BANK OF CANADA | Added | +3.2m |
| DIMENSIONAL FUND ADVISORS LP | Added | +2.6m |
| VANGUARD GROUP INC | Added | +1.1m |
| MORGAN STANLEY | Added | +954.6k |
| Squarepoint Ops LLC | Added | +633.2k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | Added | +631.7k |
| Jump Financial, LLC | New | +599.8k |
| UBS Group AG | Added | +500.0k |
| MILLENNIUM MANAGEMENT LLC | Added | +481.8k |
| VAN ECK ASSOCIATES CORP | Added | +462.1k |
Biggest sellers
| NOMURA HOLDINGS INC | Sold out | -1.3m |
| Fort Point Capital Partners LLC | Reduced | -1.2m |
| D. E. Shaw & Co., Inc. | Sold out | -952.2k |
| GOLDMAN SACHS GROUP INC | Reduced | -619.7k |
| Nuveen, LLC | Reduced | -549.1k |
| CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT | Sold out | -500.5k |
| IEQ CAPITAL, LLC | Reduced | -418.4k |
| FIRST TRUST ADVISORS LP | Reduced | -411.5k |
| IMC-Chicago, LLC | Reduced | -396.2k |
| SEGALL BRYANT & HAMILL, LLC | Sold out | -380.8k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $127.8m11.6m shares |
| PEAK6 LLC | Added | $60.0m5.4m shares |
| CITADEL ADVISORS LLC | Added | $58.2m5.3m shares |
| GROUP ONE TRADING LLC | Added | $45.8m4.1m shares |
| JANE STREET GROUP, LLC | Added | $38.2m3.5m shares |
| Jefferies Financial Group Inc. | Added | $33.1m3.0m shares |
| SIMPLEX TRADING, LLC | Reduced | $28.3m2.6m shares |
| Parallax Volatility Advisers, L.P. | Added | $20.6m1.9m shares |
| IMC-Chicago, LLC | Reduced | $18.0m1.6m shares |
| WOLVERINE TRADING, LLC | Added | $12.5m1.2m shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $72.3m6.6m shares |
| WOLVERINE ASSET MANAGEMENT LLC | Added | $60.5m5.5m shares |
| CITADEL ADVISORS LLC | Added | $42.2m3.8m shares |
| PEAK6 LLC | Added | $37.2m3.4m shares |
| SIMPLEX TRADING, LLC | Added | $24.7m2.2m shares |
| GOLDMAN SACHS GROUP INC | Unchanged | $19.3m1.8m shares |
| JANE STREET GROUP, LLC | Added | $14.3m1.3m shares |
| IMC-Chicago, LLC | Reduced | $12.1m1.1m shares |
| GROUP ONE TRADING LLC | Added | $10.6m959.0k shares |
| MILLENNIUM MANAGEMENT LLC | Added | $6.4m577.5k 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 Q2 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 |
|---|---|---|---|---|---|
| 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 |
| Q2 2025 | 0 | — | 1 | $525.5k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-05-21 | Beynon Roger Paul Director | Sold | $525.5k50.0k 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 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 44.3m $488.5m | Reduced -363.6k |
| VANGUARD GROUP INC 0.00% of their portfolio | 25.3m $278.9m | Added +1.1m |
| STATE STREET CORP 0.00% of their portfolio | 11.1m $122.2m | Reduced -54.3k |
| MORGAN STANLEY 0.01% of their portfolio | 10.5m $116.0m | Added +954.6k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 7.5m $83.1m | Added +101.4k |
| Tidal Investments LLC 0.28% of their portfolio | 3.8m $42.4m | Reduced -82.1k |
| Invesco Ltd. 0.01% of their portfolio | 3.7m $40.5m | Added +74.9k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 3.6m $40.3m | Added +3.2m |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 3.6m $40.0m | Reduced -619.7k |
| UBS Group AG 0.01% of their portfolio | 3.4m $37.3m | Added +500.0k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 3.3m $35.9m | Added +135.5k |
| VAN ECK ASSOCIATES CORP 0.04% of their portfolio | 3.0m $32.8m | Added +462.1k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 3.0m $32.6m | Added +146.7k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 2.7m $30.3m | Added +2.6m |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 2.6m $28.6m | Added +214.3k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.04% of their portfolio | 2.4m $26.7m | Reduced -323.6k |
| BARCLAYS PLC 0.01% of their portfolio | 2.3m $25.3m | Reduced -127.0k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.04% of their portfolio | 1.8m $19.6m | Added +631.7k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 1.7m $18.6m | Added +103.1k |
| Fort Point Capital Partners LLC 1.78% of their portfolio | 1.6m $17.8m | Reduced -1.2m |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 1.4m $15.2m | Reduced -8.9k |
| Vident Advisory, LLC 0.14% of their portfolio | 1.2m $12.7m | Added +104.2k |
| EXCHANGE TRADED CONCEPTS, LLC 0.15% of their portfolio | 1.0m $11.5m | Added +154.3k |
| Public Sector Pension Investment Board 0.04% of their portfolio | 948.2k $10.5m | Added +66.6k |
| STIFEL FINANCIAL CORP 0.01% of their portfolio | 931.9k $10.3m | Added +51.3k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 812.4k $9.0m | Added +213.4k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 803.3k $8.9m | Reduced -21.5k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 781.1k $8.6m | Added +60.2k |
| Legal & General Group Plc 0.00% of their portfolio | 704.5k $7.8m | Added +9.8k |
| SHARIAPORTFOLIO, INC. 3.26% of their portfolio | 689.5k $7.6m | Reduced -171.9k |
| Squarepoint Ops LLC 0.02% of their portfolio | 676.2k $7.5m | Added +633.2k |
| Nuveen, LLC 0.00% of their portfolio | 657.6k $7.2m | Reduced -549.1k |
| BIT Capital GmbH 0.45% of their portfolio | 622.5k $6.9m | Added +37.3k |
| Jump Financial, LLC 0.08% of their portfolio | 599.8k $6.6m | New |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC 0.97% of their portfolio | 584.7k $6.4m | Added +250.0k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 562.9k $6.2m | Added +481.8k |
| Swiss National Bank 0.00% of their portfolio | 536.5k $5.9m | Reduced -30.3k |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.01% of their portfolio | 508.5k $5.6m | Added +121.9k |
| SIMPLEX TRADING, LLC 0.12% of their portfolio | 412.0k $4.5m | Reduced -117.7k |
| NATIONAL BANK OF CANADA /FI/ 0.00% of their portfolio | 378.7k $4.2m | Unchanged |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 373.9k $4.1m | Added +55.8k |
| Lido Advisors, LLC 0.02% of their portfolio | 351.5k $3.9m | Added +27.5k |
| CONGRESS ASSET MANAGEMENT CO 0.03% of their portfolio | 349.9k $3.9m | Reduced -25 |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 345.5k $3.8m | Added +53.4k |
| CSM Advisors, LLC 0.11% of their portfolio | 330.6k $3.6m | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 326.4k $3.6m | Reduced -41.7k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.01% of their portfolio | 323.3k $3.6m | Reduced -6.5k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 320.5k $3.5m | Reduced -339.0k |
| Baird Financial Group, Inc. 0.01% of their portfolio | 320.0k $3.5m | Added +210.3k |
| TUDOR INVESTMENT CORP ET AL 0.03% of their portfolio | 307.8k $3.4m | New |
| MIZUHO MARKETS AMERICAS LLC 0.11% of their portfolio | 301.7k $3.3m | Added +128.0k |
| Clarity Capital Partners LLC 1.15% of their portfolio | 290.1k $3.2m | Added +17.2k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 288.4k $3.2m | Added +20.7k |
| Private Advisor Group, LLC 0.02% of their portfolio | 284.4k $3.1m | New |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. 0.25% of their portfolio | 284.0k $3.1m | Added +245.0k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 274.7k $3.0m | Reduced -17.4k |
| Maridea Wealth Management LLC 0.76% of their portfolio | 264.9k $2.9m | Reduced -33.7k |
| CITIGROUP INC 0.00% of their portfolio | 258.5k $2.9m | Reduced -133.4k |
| IMC-Chicago, LLC 0.07% of their portfolio | 251.3k $2.8m | Reduced -396.2k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 246.2k $2.7m | Added +27.3k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 245.3k $2.7m | Added +32.7k |
| ALGERT GLOBAL LLC 0.05% of their portfolio | 237.0k $2.6m | Added +15.6k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 236.8k $2.6m | Added +13.2k |
| Cetera Investment Advisers 0.00% of their portfolio | 230.5k $2.5m | Reduced -20.3k |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 204.5k $2.3m | Reduced -24.3k |
| Sculptor Capital LP 0.04% of their portfolio | 200.0k $2.2m | Unchanged |
| State of New Jersey Common Pension Fund D 0.01% of their portfolio | 190.8k $2.1m | New |
| Jefferies Financial Group Inc. 0.03% of their portfolio | 181.8k $2.0m | Reduced -336.8k |
| Galaxy Digital Capital Management GP LLC 2.38% of their portfolio | 172.8k $1.9m | Reduced -232.8k |
| MetLife Investment Management, LLC 0.01% of their portfolio | 166.2k $1.8m | Added +4.6k |
| State of Alaska, Department of Revenue 0.02% of their portfolio | 165.5k $1.8m | Added +11.5k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 157.8k $1.7m | Reduced -411.5k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 150.8k $1.7m | Reduced -148.5k |
| Harvest Portfolios Group Inc. 0.04% of their portfolio | 147.7k $1.6m | Added +63.2k |
| Lauer Wealth, LLC 0.34% of their portfolio | 145.5k $409.4k | New |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 145.3k $1.6m | Reduced -11.3k |
| Louisiana State Employees Retirement System 0.03% of their portfolio | 129.9k $1.4m | Reduced -1.0k |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 129.7k $1.4m | Unchanged |
| TITLEIST ASSET MANAGEMENT, LLC 0.14% of their portfolio | 126.6k $1.4m | Added +600 |
| SBI Securities Co., Ltd. 0.04% of their portfolio | 125.8k $1.4m | Reduced -13.1k |
| WOLVERINE TRADING, LLC 0.03% of their portfolio | 121.7k $1.3m | Reduced -106.3k |
| BI Asset Management Fondsmaeglerselskab A/S 0.01% of their portfolio | 120.7k $1.3m | New |
| INTECH INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 117.3k $1.3m | Reduced -31.3k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 116.1k $1.3m | Added +689 |
| MATAURO, LLC 0.24% of their portfolio | 114.5k $1.3m | Reduced -2.1k |
| Creative Planning 0.00% of their portfolio | 114.1k $1.3m | Added +27.8k |
| HAP Trading, LLC 0.52% of their portfolio | 108.8k $1.2m | Added +45.7k |
| Walleye Capital LLC 0.01% of their portfolio | 103.5k $1.1m | Added +26.4k |
| YOUSIF CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 103.2k $1.1m | Added +724 |
| GROUP ONE TRADING LLC 0.04% of their portfolio | 97.4k $1.1m | Reduced -106.5k |
| COMERICA BANK 0.00% of their portfolio | 96.0k $1.1m | Added +2.6k |
| Quantitative Investment Management, LLC 0.14% of their portfolio | 91.8k $1.0m | New |
| Ensign Peak Advisors, Inc 0.00% of their portfolio | 91.6k $1.0m | Unchanged |
| Cambridge Investment Research Advisors, Inc. 0.00% of their portfolio | 89.2k $984.0k | Reduced -10.1k |
| BANK OF MONTREAL /CAN/ 0.00% of their portfolio | 86.7k $955.8k | Reduced -8.4k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 85.5k $943.5k | Unchanged |
| State of Tennessee, Department of Treasury 0.00% of their portfolio | 85.2k $939.2k | Added +22.7k |
| ARIZONA STATE RETIREMENT SYSTEM 0.01% of their portfolio | 82.0k $903.9k | Reduced -1.8k |
| Maryland State Retirement & Pension System 0.02% of their portfolio | 81.1k $894.8k | Unchanged |
| TRUIST FINANCIAL CORP 0.00% of their portfolio | 80.0k $882.4k | Reduced -8.9k |