Who owns CleanSpark (CLSK)?
121 holders named in SEC filings declare between 77.4% and 95.9% of CleanSpark's shares outstanding, as of Oct 1, 2026. The largest are BlackRock (16.5%), Vanguard (9.5%) and BANK OF NOVA SCOTIA (5.8%); the five largest hold 41.6% together. Another 295 institutions hold small positions worth 2.9%. At least 1.3% of the shares appear in no ownership filing: investors who do not have to report, mostly individuals. From Mar 31, 2026 to Jun 30, 2026, institutions that filed both quarters bought 19.2% and sold 12.3% of the shares, a net purchase of 6.9%; 89 opened a position, 122 added, 111 reduced and 39 sold out. Biggest buyers: D. E. Shaw (+4.8M shares) and Point72 (+4.4M shares). Biggest sellers: Dimensional (-4.5M) and Morgan Stanley (-3.7M). Schedule 13D/G filings since Mar 31, 2026: D. E. Shaw & Co., L.P. crossed 5% (5.0%) on Jul 10, 2026, BANK OF NOVA SCOTIA crossed 5% (5.8%) on Jun 30, 2026 and Dimensional Fund Advisors LP fell below 5% (3.8% still declared) on Jun 30, 2026. Directors and officers, from their latest Form 4: S. Matthew Schultz (1.4%). Over time, 400 managers declared CleanSpark in their 13F for Q2 2026, against 1 for Q4 2019: together at most 90.1% of the shares outstanding, against 0.02%.
| Holder | Filing | Share of capital | As of | Holding since (13F) |
|---|---|---|---|---|
| BlackRock | 13F | 16.5% | Jun 30, 2026 | Q3 2020 |
| Vanguard | 13F | 9.5% | Jun 30, 2026 | Q3 2020 |
| BANK OF NOVA SCOTIA | 13G | 5.8% | Jun 30, 2026 | — |
| D. E. Shaw | 13G | 5.0% | Jul 10, 2026 | — |
| Situational Awareness LP | 13F | 4.8% | Jun 30, 2026 | Q4 2025 |
| State Street | 13F | 4.3% | Jun 30, 2026 | Q4 2020 |
| Dimensional | 13F | 3.8% | Jun 30, 2026 | Q3 2022 |
| UBS | 13F | 3.1% | Jun 30, 2026 | Q3 2020 |
| Geode Capital | 13F | 2.8% | Jun 30, 2026 | Q3 2020 |
| Point72 | 13F | 2.3% | Jun 30, 2026 | Q1 2026 |
| Invesco | 13F | 1.4% | Jun 30, 2026 | Q2 2021 |
| S. Matthew Schultz | Form 4 | 1.4% | Sep 8, 2026 | — |
| Nuveen | 13F | 1.4% | Jun 30, 2026 | Q2 2021 |
| Charles Schwab | 13F | 1.3% | Jun 30, 2026 | Q4 2020 |
| Jane Street | 13F | 1.3% | Jun 30, 2026 | Q3 2025 |
| Goldman Sachs | 13F | 1.2% | Jun 30, 2026 | Q4 2020 |
| Morgan Stanley | 13F | 1.2% | Jun 30, 2026 | Q1 2020 |
| Northern Trust | 13F | 1.1% | Jun 30, 2026 | Q3 2020 |
| VanEck | 13F | 1.1% | Jun 30, 2026 | Q3 2021 |
| Millennium | 13F | 1.0% | Jun 30, 2026 | Q4 2022 |
| T. Rowe Price | 13F | 0.97% | Jun 30, 2026 | Q1 2023 |
| American Century Companies, Inc. | 13F | 0.89% | Jun 30, 2026 | Q1 2026 |
| Connor, Clark & Lunn Investment Management Ltd. | 13F | 0.85% | Jun 30, 2026 | Q1 2026 |
| Covalis Capital LLP | 13F | 0.77% | Jun 30, 2026 | Q2 2026 |
| MIZUHO MARKETS AMERICAS LLC | 13F | 0.72% | Jun 30, 2026 | Q2 2026 |
CleanSpark institutional ownership over time
| Quarter | 13F managers | Share of the company (upper bound) | Value declared | Held by stock pickers |
|---|---|---|---|---|
| Q4 2019 | 1 | 0.02% | $325,000.00 | 100.0% |
| Q4 2020 | 54 | 1.6% | $117.5M | 34.2% |
| Q4 2021 | 89 | 5.0% | $121.7M | 30.5% |
| Q4 2022 | 98 | 34.6% | $50.6M | 33.7% |
| Q4 2023 | 158 | 46.5% | $948.0M | 37.9% |
| Q4 2024 | 266 | 49.2% | $1.3B | 31.3% |
| Q4 2025 | 373 | 78.3% | $2.0B | 32.5% |
| Q2 2026 | 400 | 90.1% | $3.4B | 44.8% |
From SEC Form 13F, every quarter since the end of 2019, read like the current quarter: entities of a house summed, a value contradicting its share count set aside. The share of the company is an upper bound — two managers can declare the same shares — over the shares outstanding at that date.