XOOMAR

CLEANSPARK, INC. (CLSK)

Every FINRA and SEC series the site collects for CLEANSPARK, INC.: short interest with days to cover, daily short sale volume, fails to deliver and Form 4 insider trades. Listed on Nasdaq, classified by the SEC as finance services.

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73.7M

Short interest

settlement 2026-08-14

3.6

Days to cover

-0.4% vs prior

48.8%

Short share of volume

2026-09-11

2,047

Fails to deliver

settlement 2026-08-12

-$394K

Insider flow, 90 days

0 buys, 4 sells

As of 2026-09-11.

Short interest

FINRA, twice a month; the last 12 months shown, all 48 settlements in the JSON

As of 14 August 2026, short interest in CLSK is 73,687,226 shares, down 4,306,650 shares over the last month. Over the last 48 readings it ranged from 41,423,237 shares (30 August 2024) to 90,709,139 shares (15 April 2025). At the reported average volume of 20.5M shares a day that is 3.6 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-1473,687,226-0.4%20,531,0483.59
2026-07-3173,978,672-5.2%22,747,6263.25
2026-07-1577,993,876-0.8%23,770,8153.28
2026-06-3078,632,173-7.2%19,933,3483.94
2026-06-1584,770,714+1.1%23,156,5523.66
2026-05-2983,872,674-0.2%26,665,8643.15
2026-05-1584,055,404-6.8%20,573,6264.09
2026-04-3090,239,487+6.9%20,385,2124.43
2026-04-1584,401,392-2.0%19,504,7224.33
2026-03-3186,135,886+1.8%19,610,6544.39
2026-03-1384,611,225-0.4%17,628,4974.80
2026-02-2784,931,425-0.6%18,851,8654.51
2026-02-1385,481,496+5.5%32,185,6072.66
2026-01-3081,015,067-1.7%32,699,3592.48
2026-01-1582,421,779+2.2%29,917,1102.76
2025-12-3180,625,101-0.7%19,860,5794.06
2025-12-1581,218,270-0.3%34,052,3912.39
2025-11-2881,484,585+4.6%37,834,7882.15
2025-11-1477,893,333+35.0%34,110,6162.28
2025-10-3157,701,144+0.4%30,107,5321.92
2025-10-1557,491,342+1.2%42,833,3941.34
2025-09-3056,784,833+2.1%38,987,2981.46
2025-09-1555,593,806+4.7%19,635,1522.83
2025-08-2953,092,473-3.8%15,550,2093.41

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 11 September 2026, the short share of CLSK volume is 48.8%, up 14.9 points over the last five sessions. Over the last 52 readings it ranged from 28.2% (8 July 2026) to 65.7% (31 August 2026). The latest reading is 2.7 points above the 30-session average of 46.1%, on 9.4M shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-114.6M9.4M48.8%28,585
2026-09-102.7M6.2M44.1%20
2026-09-093.1M6.5M47.5%2,272
2026-09-083.7M7.8M47.1%13,426
2026-09-042.7M6.5M42.0%18,302
2026-09-033.6M10.5M34.0%25,084
2026-09-022.5M5.3M46.6%7,645
2026-09-013.1M6.0M51.2%28,749
2026-08-313.4M5.1M65.7%367,938
2026-08-285.1M9.5M53.8%325,811
2026-08-274.3M8.9M48.7%25,492
2026-08-263.0M6.9M43.9%24,463
2026-08-254.3M9.4M45.5%26,061
2026-08-243.6M8.4M42.7%23,746
2026-08-216.7M14.0M47.9%9,543
2026-08-204.7M12.2M38.8%157,821
2026-08-194.4M11.3M38.6%28,271
2026-08-183.5M7.6M45.8%21,761
2026-08-173.3M8.2M39.9%34,721
2026-08-144.2M9.4M44.5%18,584
2026-08-138.5M13.8M61.5%2,187
2026-08-123.4M8.4M40.0%35,941
2026-08-114.5M9.2M48.6%29,735
2026-08-103.5M7.6M46.4%5,232
2026-08-075.2M10.2M50.8%19,983
2026-08-063.5M7.6M46.4%24,052
2026-08-053.1M7.1M43.8%4,619
2026-08-043.9M11.2M34.7%82,350
2026-08-034.7M8.4M55.7%5,330
2026-07-313.0M7.8M38.9%16,636

Fails to deliver

SEC, by settlement date. JSON

As of 12 August 2026, the fails-to-deliver balance in CLSK is 2,047 shares, down 125,751 shares over the last settlement date. Over the last 52 readings it ranged from 1 share (22 April 2026) to 586,778 shares (22 June 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-08-122,047$11.52$24K
2026-08-07127,798$12.75$1.6M
2026-08-06275,064$13.50$3.7M
2026-08-0515$14.17$213
2026-08-0414,187$14.65$208K
2026-08-031,499$13.76$21K
2026-07-311,194$14.54$17K
2026-07-29234$13.48$3K
2026-07-28277,985$14.03$3.9M
2026-07-2752,873$14.52$768K
2026-07-24239,715$15.61$3.7M
2026-07-23744$15.33$11K
2026-07-225,207$15.38$80K
2026-07-204,996$13.03$65K
2026-07-17260,026$12.90$3.4M
2026-07-16403,872$14.13$5.7M
2026-07-15290,551$13.45$3.9M
2026-07-1020,222$12.89$261K
2026-06-3014,108$15.37$217K
2026-06-2928,736$16.33$469K
2026-06-2538,274$16.23$621K
2026-06-2441,896$17.19$720K
2026-06-22586,778$17.24$10.1M
2026-06-1832,945$16.78$553K
2026-06-17291,338$17.26$5.0M
2026-06-16142,446$17.14$2.4M
2026-06-1529,656$16.48$489K
2026-06-126,928$16.17$112K
2026-06-11116,881$14.90$1.7M
2026-06-10238,534$15.97$3.8M

Insider trades

SEC Form 4, newest first, 50 of 100 shown. JSON

Insiders at CLSK reported 4 open-market sells worth $394K in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: Carson Brian Jay (Chief Accounting Officer) on 2026-09-08.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-09-08Carson Brian JayChief Accounting OfficerTax withholding17K$13.34$229K141K
2026-09-08Carson Brian JayChief Accounting OfficerTax withholding37K$13.34$491K104K
2026-09-08Monnig TaylorCTO, COOSell12K$13.34$160K320K
2026-09-08Monnig TaylorCTO, COOTax withholding47K$13.34$632K332K
2026-09-08Monnig TaylorCTO, COOSell13K$13.34$176K236K
2026-09-08Monnig TaylorCTO, COOTax withholding52K$13.34$694K249K
2026-09-08Garrison Scott EugeneEVP, Chief Development OfficerTax withholding54K$13.34$715K367K
2026-09-08Garrison Scott EugeneEVP, Chief Development OfficerTax withholding59K$13.34$785K276K
2026-09-08Vecchiarelli Gary AnthonyPresident, CFOTax withholding73K$13.34$974K306K
2026-09-08Vecchiarelli Gary AnthonyPresident, CFOTax withholding56K$13.34$751K151K
2026-09-08Schultz S. MatthewCEO &amp; ChairmanTax withholding254K$13.34$3.4M3.0M
2026-09-08Schultz S. MatthewCEO &amp; ChairmanTax withholding92K$13.34$1.2M2.6M
2026-09-04Carson Brian JayChief Accounting OfficerOption exercise44K$0.00$0158K
2026-09-04Carson Brian JayChief Accounting OfficerTax withholding6K$12.61$81K114K
2026-09-04Carson Brian JayChief Accounting OfficerOption exercise16K$0.00$0120K
2026-09-04Carson Brian JayChief Accounting OfficerOption exercise94K$0.00$0141K
2026-09-04Monnig TaylorCTO, COOOption exercise120K$0.00$0379K
2026-09-04Monnig TaylorCTO, COOSell5K$12.61$57K259K
2026-09-04Monnig TaylorCTO, COOTax withholding18K$12.61$224K263K
2026-09-04Monnig TaylorCTO, COOOption exercise45K$0.00$0281K
2026-09-04Monnig TaylorCTO, COOOption exercise132K$0.00$0301K
2026-09-04Garrison Scott EugeneEVP, Chief Development OfficerOption exercise120K$0.00$0421K
2026-09-04Garrison Scott EugeneEVP, Chief Development OfficerTax withholding21K$12.61$265K301K
2026-09-04Garrison Scott EugeneEVP, Chief Development OfficerOption exercise45K$0.00$0321K
2026-09-04Garrison Scott EugeneEVP, Chief Development OfficerOption exercise132K$0.00$0335K
2026-09-04Vecchiarelli Gary AnthonyPresident, CFOOption exercise186K$0.00$0379K
2026-09-04Vecchiarelli Gary AnthonyPresident, CFOTax withholding27K$12.61$345K193K
2026-09-04Vecchiarelli Gary AnthonyPresident, CFOOption exercise70K$0.00$0221K
2026-09-04Vecchiarelli Gary AnthonyPresident, CFOOption exercise143K$0.00$0207K
2026-09-04Schultz S. MatthewCEO &amp; ChairmanOption exercise576K$0.00$03.3M
2026-09-04Schultz S. MatthewCEO &amp; ChairmanTax withholding95K$12.61$1.2M2.7M
2026-09-04Schultz S. MatthewCEO &amp; ChairmanOption exercise216K$0.00$02.8M
2026-09-04Schultz S. MatthewCEO &amp; ChairmanOption exercise209K$0.00$02.7M
2026-08-14Monnig TaylorCTO, COOSell54$11.51$622169K
2026-08-14Monnig TaylorCTO, COOTax withholding211$11.51$2K169K
2026-08-14Garrison Scott EugeneEVP, Chief Development OfficerTax withholding1K$11.51$14K202K
2026-08-14Vecchiarelli Gary AnthonyPresident, CFOTax withholding632$11.51$7K64K
2026-08-14Schultz S. MatthewCEO &amp; ChairmanTax withholding9K$11.51$104K2.5M
2026-08-13Monnig TaylorCTO, COOOption exercise536$0.00$0169K
2026-08-13Garrison Scott EugeneEVP, Chief Development OfficerOption exercise3K$0.00$0204K
2026-08-13Vecchiarelli Gary AnthonyPresident, CFOOption exercise2K$0.00$065K
2026-08-13Schultz S. MatthewCEO &amp; ChairmanOption exercise21K$0.00$02.5M
2026-06-30Cavaleri Amandan/aOption exercise8K$0.00$0130K
2026-06-30Wood Thomas Leighn/aOption exercise8K$0.00$064K
2026-06-30McNeill Larryn/aOption exercise8K$0.00$0311K
2026-06-30Beynon Roger Pauln/aOption exercise8K$0.00$0148K
2026-05-14Monnig TaylorCTO, COOTax withholding211$13.98$3K169K
2026-05-14Garrison Scott EugeneEVP, Chief Development OfficerTax withholding1K$13.98$17K201K
2026-05-14Vecchiarelli Gary AnthonyPresident, CFOTax withholding632$13.98$9K63K
2026-05-14Schultz S. MatthewCEO &amp; ChairmanTax withholding9K$13.98$126K2.5M

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are the rarer, stronger signal.

Planned sales (Form 144)

Newest first. JSON

5 Form 144 notices on file for CLSK worth $11.8M at the prices reported; 5 in the last 90 days worth $11.8M. Latest: Carson Brian Jay filed on 2026-09-04 to sell 60,463 shares ($761K) from 2026-09-04.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-09-04Carson Brian JayOfficer60K$761K0.023%2026-09-04Siebert Financial Corp.
2026-09-04Monnig TaylorOfficer147K$1.8M0.057%2026-09-04Siebert Financial Corp.
2026-09-04Garrison Scott EugeneOfficer133K$1.7M0.051%2026-09-04Siebert Financial Corp.
2026-09-04Vecchiarelli Gary AnthonyOfficer157K$2.0M0.061%2026-09-04Siebert Financial Corp.
2026-09-04Schultz S. MatthewOfficer, Director441K$5.5M0.171%2026-09-04Siebert Financial Corp.

Large holders (13D and 13G)

One row per reporting person, newest filing first. JSON

4 holders above 5% have filed on CLSK, all on Schedule 13G (passive). The largest reported stake is BANK OF NOVA SCOTIA at 5.6% of the class (14,791,062 shares), filed 2026-07-15 for an event on 2026-06-30.

FiledFormHolderSharesOf classEvent
2026-07-1713GD. E. Shaw & Co., L.P.investment adviser, partnership12.9M5.0%2026-07-10
2026-07-1713GD. E. Shaw & Co., L.L.C.other entity12.9M5.0%2026-07-10
2026-07-1713GDavid E. Shawindividual12.9M5.0%2026-07-10
2026-07-1513GBANK OF NOVA SCOTIAnon-US institution14.8M5.6%2026-06-30

13F holders

Tracked managers holding CLSK at their latest 13F. JSON

8 of the 30 tracked managers held CLSK at their latest 13F, $534.7M in total at quarter-end prices. D. E. Shaw & Co. is the largest at $180.1M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 3 cut.

FundQuarterSharesValueOf portfolioChange in shares
D. E. Shaw & Co.2026-06-3012.4M$180.1M0.09%+4.5M
D. E. Shaw & Co.2026-06-3092.8M$121.5M0.06%+80.4M
Point72 Asset Management2026-06-306.8M$98.4M0.11%+3.5M
Citadel Advisors2026-06-305.8M$84.1M0.01%-2.0M
Millennium Management2026-06-302.9M$42.7M0.02%+2.9M
AQR Capital Management2026-06-30518K$7.5M0.00%+424K
Millennium Management2026-06-30275K$360K0.00%-2.7M
Millennium Management2026-06-3030K$9K0.00%-1.2M

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In FY 2025 it generated -$461.0M of operating cash flow and spent $145.0M on buybacks. As of 2026-06-30, cash was $202.6M against $1.78B of debt.

Cash
$202.6M
Debt
$1.78B
Equity
$761.3M
Total assets
$2.70B
Shares outstanding
256,817,073

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 20262026-06-30n/a-$239.8Mn/an/a
Q1 20262026-03-31n/a-$378.3Mn/an/a
Q4 20252025-12-31n/a-$378.7Mn/an/a
Q4 2025derived2025-09-30n/a-$925Kn/an/a
Q2 20252025-06-30n/a$257.4Mn/an/a
Q1 20252025-03-31n/a-$138.8Mn/an/a
Q4 20242024-12-31n/a$246.8Mn/an/a
Q4 2024derived2024-09-30$89.3M-$62.2M-69.6%n/a

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-09-30$766.3M$364.5M-$461.0Mn/a$145.0Mn/a
FY 20242024-09-30$379.0M-$145.8M-$233.7Mn/a$0n/a
FY 20232023-09-30$168.4M-$138.1M-$17.2Mn/a$0n/a
FY 20222022-09-30$131.5M-$57.3M$73.5M$19.3Mn/an/a
FY 20212021-09-30$39.3M-$21.8M-$24.0M$139.2Mn/an/a

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are cash paid to repurchase common stock in the year (XBRL PaymentsForRepurchaseOfCommonStock), not authorizations. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-08-04 from the cover page.

What this page is

CLEANSPARK, INC. in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page pulls every series the site collects for one ticker onto one URL, keyed by the SEC's own ticker list, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a summary sentence built from the rows (last value, change, range with dates) and its own JSON and CSV links. Nothing on the page is written by a model; the sentences change only when the data does. A page exists only for companies with data in at least two series, and every section says when its source last updated.

This page follows CLEANSPARK, INC. (CLSK), SEC CIK 827876, listed on Nasdaq, classified by the SEC as finance services. The cross-market tables live on the short interest and insider transactions hubs.

Source and method

Short interest
FINRA consolidated short interestTwice a month, about eight business days after settlement. Latest 2026-08-14.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesEvery trading day, loaded the following morning. Latest 2026-09-11.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataTwice a month, a few weeks after the half month ends. Latest 2026-08-12.JSON and CSV
Planned sales
SEC EDGAR Form 144EDGAR read every 30 minutes; a notice is filed on or before the sell order. Latest 2026-09-04.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GEDGAR read every 30 minutes; 13D within five business days of crossing 5%, 13G on the passive schedule. Latest 2026-07-17.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRQuarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials
SEC XBRL company factsRefreshed weekly from the SEC's structured data; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
Insider trades
SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-09-08.JSON and CSV
Company record
EDGAR filing index for CIK 827876Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
30 requests a minute without a key, 120 a minute with a key from a free account.

Data checks. Every dataset is checked against its source once a day. This dataset passed the last run, 13 Sep 05:40 UTC.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a crowded short are the combination that has historically preceded squeezes; insider sells next to a crowded short are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Datasets

Frequently Asked Questions

How much of CLSK is sold short?
73,687,226 shares were held short at the 2026-08-14 settlement, 3.6 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is CLSK's daily short volume?
On 2026-09-11, 4,566,371 of the 9,350,783 CLSK shares reported to FINRA were sold short, 48.8% of the day's reported volume. Short volume is a flow for one day, not a position.
Does CLSK have fails to deliver?
The SEC's latest file shows 2,047 CLSK shares failed to deliver at settlement 2026-08-12. Fails are reported per settlement date and published twice a month with a lag.
Are CLSK insiders buying or selling?
Insiders at CLSK reported 4 open-market sells worth $394K in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: Carson Brian Jay (Chief Accounting Officer) on 2026-09-08.
Have CLSK insiders filed to sell?
5 Form 144 notices on file for CLSK worth $11.8M at the prices reported; 5 in the last 90 days worth $11.8M. Latest: Carson Brian Jay filed on 2026-09-04 to sell 60,463 shares ($761K) from 2026-09-04.
Who owns more than 5% of CLSK?
4 holders above 5% have filed on CLSK, all on Schedule 13G (passive). The largest reported stake is BANK OF NOVA SCOTIA at 5.6% of the class (14,791,062 shares), filed 2026-07-15 for an event on 2026-06-30.
What did CLSK report last quarter?
In FY 2025 it generated -$461.0M of operating cash flow and spent $145.0M on buybacks. As of 2026-06-30, cash was $202.6M against $1.78B of debt.
Which funds hold CLSK?
8 of the 30 tracked managers held CLSK at their latest 13F, $534.7M in total at quarter-end prices. D. E. Shaw & Co. is the largest at $180.1M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 3 cut.

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.