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Cleanspark, Inc. · 13F filings

CLSK Institutional Ownership

Holdings as of Jun 30, 2026From SEC Form 13FUpdated

Who owns Cleanspark, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 411 funds reported holding CLSK at Jun 30, 2026, together owning 90.2% of the company.

← CLSK stock page

Fund sentiment
Strongly bullish
Strongly bearishNeutralStrongly bullish
  • ▲221 buying vs 153 selling
  • ▲Held by funds +2.9 pts
  • ▲Funds holding +57
  • ●Superinvestors: 2 added, 2 cut
  • ▲Put/call 0.54 to 0.40

What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.

Funds holding411+57 vs Q1 2026
Held by funds90.2%+2.9 pts
Value held$3.4B232M shares
Put/call ratio0.40down from 0.54

Funds holding and ownership

8 quarters
Q3 2024: 247 fundsQ3 '24Q4 2024: 275 fundsQ4 '24Q1 2025: 307 fundsQ1 '25Q2 2025: 307 fundsQ2 '25Q3 2025: 334 fundsQ3 '25Q4 2025: 380 fundsQ4 '25Q1 2026: 354 fundsQ1 '26Q2 2026: 411 fundsQ2 '2690.2% owned
Funds holdingHeld by funds %

Quarter over quarter

all 13F filers
Q2 2026This quarterQ1 2026Change
Funds holding411354+16.1%
In funds' top 1048−50.0%
13F shares232M224M+3.3%
Held by funds90.2%87.3%+2.9 pts
New positions9556+69.6%
Increased126101+24.8%
Reduced112132−15.2%
Sold out4184−51.2%
Calls (shares)6.5M7.3M−11.1%
Puts (shares)2.7M3.9M−30.5%
Put/call ratio0.400.54−25.6%

Buyers vs sellers

adding or new vs cutting or sold out
Q4 2024: 164 buyingQ4 2024: 92 sellingQ4 '24Q1 2025: 193 buyingQ1 2025: 109 sellingQ1 '25Q2 2025: 160 buyingQ2 2025: 138 sellingQ2 '25Q3 2025: 185 buyingQ3 2025: 133 sellingQ3 '25Q4 2025: 209 buyingQ4 2025: 154 sellingQ4 '25Q1 2026: 157 buyingQ1 2026: 216 sellingQ1 '26Q2 2026: 221 buyingQ2 2026: 153 sellingQ2 '26
Buying 221Selling 153latest quarter

Superinvestors in CLSK

All superinvestors →

Who owns CLSK

share of fund held shares
  • Index and passive funds47.0%
  • Active managers and hedge funds36.6%
  • Banks and brokers15.3%
  • Pensions, insurers and other1.1%

The top 10 holders own 56.1% of all CLSK shares that funds reported. Groups are our own grouping of filers by name.

Put/call ratio

funds' options, market makers left out
1.00Q3 2024: 0.33Q3 '24Q4 2024: 0.69Q4 '24Q1 2025: 0.73Q1 '25Q2 2025: 0.66Q2 '25Q3 2025: 0.66Q3 '25Q4 2025: 0.66Q4 '25Q1 2026: 0.54Q1 '26Q2 2026: 0.40Q2 '260.40

Above 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.

Filed so far for Q3 2026

102 funds changed their position

🔒 Free account: see all 20.

Top holders

Q2 2026
#FundOf companySharesValueChange
1BlackRock, Inc.16.48%42.3M$616M+590K
2Situational Awareness LP4.78%12.3M$179M0
3Vanguard Portfolio Management LLC4.46%11.5M$167M+367K
4D. E. Shaw & Co., Inc.4.38%11.3M$164M+4.8M
5Vanguard Capital Management LLC4.33%11.1M$162M+50K
6State Street Corp4.28%11M$160M+6,092
7Dimensional Fund Advisors LP3.76%9.6M$140M−4.5M
8UBS Group AG2.94%7.6M$110M+4.2M
9Geode Capital Management, LLC2.83%7.3M$133M+119K
10Point72 Asset Management, L.P.2.33%6M$86.9M+4.4M
🔒 15 more top holders. Create a free account or sign in to see them.
Biggest buyers
Biggest sellers

CLSK institutional ownership FAQ

Who owns the most CLSK stock?

In Q2 2026 13F filings the largest holder of CLSK was BlackRock, Inc., followed by Situational Awareness LP and Vanguard Portfolio Management LLC. Index fund managers are usually the biggest holders of large companies.

What percentage of CLSK is owned by institutions?

Funds that file 13F reports held 90.2% of CLSK's shares at Jun 30, 2026, compared with 87.3% a quarter earlier. That counts every manager with more than $100 million in US stocks.

Are hedge funds buying CLSK?

In Q2 2026, 221 funds bought CLSK (95 of them new positions) and 153 sold (41 sold out completely). Among well known investors, 2 added and 2 cut. Our fund sentiment for CLSK is strongly bullish.

What is CLSK's institutional put/call ratio?

Funds reported $36.5M of CLSK puts against $91.2M of calls, a put/call ratio of 0.40 (0.54 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.

How current is this CLSK ownership data?

13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.

For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.