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CleanSpark CLSK

$12.48 −$0.26 (-2.04%)
Pre-market · Oct 6, 8:20 am ET · After hours $12.46 -0.16%
Open$12.90
Prev close$12.74
Day range$12.10 – $12.93
Volume14.85M
Market cap$3.21B
P/E (TTM)–
Dividend yield–

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Institutional ownership97.5%+0.23 pts vs. prior quarter
Institutions holding495+0 vs. prior quarter
Insider trades (recent)25 buys / 25 sellsBalanced
Short interest30.60% of floatDays to cover 4.9 · as of 15 Sep 2026
Short-sale volume share22.0%5-day average of daily volume

Short-sale volume as % of daily volume

17%20%24%27%Sep '26Sep '26Oct '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$23.80M (7 inflow days, 13 outflow days).

The five largest holders on file together own 36.6% of shares outstanding.

Largest holders

  • BlackRock16.48%
  • The Bank of Nova Scotia5.76%
  • Vanguard Capital Management, LLC4.99%
  • Situational Awareness LP4.78%
  • D. E. Shaw & Co., L.P.4.57%
  • Vanguard Portfolio Management, LLC4.46%
  • State Street Global Advisors4.28%
  • Dimensional Fund Advisors3.76%

By investor type

  • Mutual Fund63.01%
  • Hedge Fund18.29%
  • Public Company10.50%
  • Private Company4.23%
  • Individual/Insider3.97%
  • Government Pension Fund0.90%
  • Family Office/Trust0.32%
  • Insurance Company0.17%

Reported short interest has held roughly steady near 30.60% of float over the last 6 biweekly reports (30 Jun 2026 to 15 Sep 2026).

Short interest, by report

Report dateShares short% of floatDays to cover
15 Sep 2026 78,577,506 30.6% 4.9
31 Aug 2026 77,855,812 30.3% 4.0
14 Aug 2026 73,687,226 28.7% 3.6
31 Jul 2026 73,978,672 28.8% 3.3
15 Jul 2026 77,993,876 30.4% 3.3
30 Jun 2026 78,632,173 30.6% 3.9

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