CleanSpark, Inc.
CleanSpark, Inc. (CLSK) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · CLSK · as of Mar 31, 2025
Ownership Breakdown
348
Institutional Holders
▲ 37 vs Q4
$1.13B
Total Inst. Value
▼ $202.52M vs Q4
256.61M
Shares Outstanding
freeFloat 96.00%
167.66M
13F Shares Held
▲ 19.62M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
CLSK largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. services-computer integrated systems design | 44.65M | 14.99% | 14.99% | $300.07B | May 2, 2025 | ▲ 22.86M |
VANGUARD GROUP INC services-computer integrated systems design | 24.15M | 8.11% | 8.11% | $162.26B | May 9, 2025 | ▲ 4.49M |
STATE STREET CORP services-computer integrated systems design | 11.13M | 3.74% | 3.74% | $74.81B | May 15, 2025 | ▲ 4.34M |
SUSQUEHANNA INTERNATIONAL GROUP, LLP services-computer integrated systems design | 9.95M | 3.34% | 3.34% | $66.83B | May 14, 2025 | ▲ 867.0K |
MORGAN STANLEY services-computer integrated systems design | 9.56M | 3.21% | 3.21% | $64.23B | May 15, 2025 | ▼ 2.93M |
GEODE CAPITAL MANAGEMENT, LLC services-computer integrated systems design | 7.44M | 2.50% | 2.50% | $49.98B | May 13, 2025 | ▲ 918.1K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP services-computer integrated systems design | 5.72M | 1.92% | 1.92% | $38.42B | May 14, 2025 | ▼ 679.7K |
CITADEL ADVISORS LLC services-computer integrated systems design | 4.63M | 1.56% | 1.56% | $31.14B | May 15, 2025 | ▼ 4.32M |
GOLDMAN SACHS GROUP INC services-computer integrated systems design | 4.25M | 1.43% | 1.43% | $28.54B | Jun 27, 2025 | ▲ 3.16M |
TOROSO INVESTMENTS, LLC services-computer integrated systems design | 3.93M | 1.32% | 1.32% | $26.40B | May 14, 2025 | ▲ 1.53M |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
32
Increased
+55.37M shares5
New Positions
first time holders13
Decreased
−16.31M shares0
Sold Out
fully exitedNet shares change (top 50)
+39.07M
+55.37M / −16.31M
Net new holders
+24
5 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
CLSK insider trading · insider activity
Source: SEC Form 4
4
Buy transactions
8
Sell transactions
0.50
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Monnig Taylor CTO, COO | May 14, 2026 | Tax Withhold | 211 | $13.98 | $2.9K | 168.9K | Form 4 ↗ |
Garrison Scott Eugene EVP, Chief Development Officer | May 14, 2026 | Tax Withhold | 1,192 | $13.98 | $16.7K | 200.9K | Form 4 ↗ |
Vecchiarelli Gary Anthony President, CFO | May 14, 2026 | Tax Withhold | 632 | $13.98 | $8.8K | 63.1K | Form 4 ↗ |
Schultz S. Matthew CEO & Chairman | May 14, 2026 | Tax Withhold | 9,031 | $13.98 | $126.3K | 2.47M | Form 4 ↗ |
Cavaleri Amanda director | Mar 9, 2026 | Award | 31,220 | — | — | 31.2K | Form 4 ↗ |
Beynon Roger Paul director | Mar 9, 2026 | Award | 31,220 | — | — | 31.2K | Form 4 ↗ |
Wood Thomas Leigh director | Mar 9, 2026 | Award | 31,220 | — | — | 31.2K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
CleanSpark, Inc. (CLSK) is primarily owned by institutional investors, who hold approximately 65.3% of total shares outstanding. Company insiders own approximately 4.00%, while retail and public investors account for the remaining 30.66%.
The largest institutional shareholder of CleanSpark, Inc. is BLACKROCK, INC., holding approximately 44.65 million shares — equal to 14.99% of outstanding shares — as of March 31, 2025.
A total of 348 institutional investors currently hold CLSK stock, with a combined institutional value of approximately $1.13 billion as of the most recent 13F filing period.
Frequently asked questions
CLSK ownershipCleanSpark, Inc. (CLSK) is primarily owned by institutional investors, who hold approximately 65.3% of shares. The largest shareholder is BLACKROCK, INC. with a 14.99% stake. Company insiders hold 4.00%. Data sourced from SEC Form 13F as of March 31, 2025.