XOOMAR

TERAWULF INC. (WULF)

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

Download CSV

122.3M

Short interest

settlement 2026-08-31

4.0

Days to cover

+14.1% vs prior

33.5%

Short share of volume

2026-09-11

322,603

Fails to deliver

settlement 2026-08-14

-$4.2M

Insider flow, 90 days

2 buys, 2 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 31 August 2026, short interest in WULF is 122,289,767 shares, up 11,125,694 shares over the last month. Over the last 48 readings it ranged from 41,794,191 shares (13 September 2024) to 122,289,767 shares (31 August 2026). The latest reading sits at the top of that range. At the reported average volume of 30.6M shares a day that is 4.0 days to cover.

Embed this chartkeeps the attribution line it carries
<iframe src="https://xoomar.com/embed/stocks/wulf" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
PreviewDark previewAdd ?theme=dark to the src for a dark chart.
SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-31122,289,767+14.1%30,588,7814.00
2026-08-14107,155,929-3.6%31,195,0523.44
2026-07-31111,164,073+6.5%33,283,4413.34
2026-07-15104,365,154-0.3%42,059,2692.48
2026-06-30104,663,534-3.7%29,270,9983.58
2026-06-15108,654,174-0.1%26,348,2214.12
2026-05-29108,775,050-1.4%27,067,5434.02
2026-05-15110,268,414+4.7%28,912,5863.81
2026-04-30105,298,684+3.1%32,252,3663.26
2026-04-15102,092,218+3.8%34,353,4232.97
2026-03-3198,355,926+1.8%29,953,3483.28
2026-03-1396,576,471+3.2%27,754,6043.48
2026-02-2793,590,674-2.1%26,866,0743.48
2026-02-1395,574,184+2.5%47,087,7692.03
2026-01-3093,277,556-4.9%26,925,1823.46
2026-01-1598,085,614+4.5%21,884,2814.48
2025-12-3193,851,156-5.6%23,605,5473.98
2025-12-1599,422,010-2.6%30,105,6633.30
2025-11-28102,128,674-3.1%46,349,4302.20
2025-11-14105,434,759-3.6%46,167,8692.28
2025-10-31109,430,787+2.5%44,435,5092.46
2025-10-15106,747,522+4.3%41,598,5352.57
2025-09-30102,301,755-1.9%37,150,2812.75
2025-09-15104,245,654+0.1%40,271,4632.59

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 11 September 2026, the short share of WULF volume is 33.5%, down 8.2 points over the last five sessions. Over the last 52 readings it ranged from 26.0% (10 August 2026) to 53.3% (5 August 2026). The latest reading is 8.2 points below the 30-session average of 41.8%, on 12.7M shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-114.2M12.7M33.5%32,203
2026-09-104.4M11.1M39.2%113,322
2026-09-094.6M10.4M43.8%58,007
2026-09-087.7M16.4M46.9%28,872
2026-09-044.0M8.9M45.4%10,704
2026-09-035.3M12.8M41.7%31,423
2026-09-024.5M9.6M46.4%16,037
2026-09-015.7M12.2M47.0%170,531
2026-08-312.9M7.7M38.0%38
2026-08-285.2M12.6M41.5%6,150
2026-08-275.0M12.0M41.4%11,539
2026-08-263.6M8.7M41.6%535
2026-08-256.0M15.0M40.0%28,213
2026-08-245.6M11.6M47.9%70,137
2026-08-218.8M19.8M44.7%19,839
2026-08-207.3M15.0M48.6%444,491
2026-08-195.8M16.6M35.0%782,080
2026-08-189.3M21.6M43.3%558,746
2026-08-174.3M10.1M42.8%107,677
2026-08-145.4M13.7M39.1%242,182
2026-08-134.4M12.7M34.7%43,359
2026-08-125.9M14.8M40.1%82,605
2026-08-114.1M11.3M36.5%68,407
2026-08-104.3M16.5M26.0%1,834
2026-08-076.9M18.1M38.2%47,037
2026-08-064.3M9.0M48.1%12,335
2026-08-055.6M10.5M53.3%5,039
2026-08-044.3M9.9M43.4%229,765
2026-08-036.4M15.9M40.3%5,848
2026-07-315.8M13.2M44.2%31,928

Fails to deliver

SEC, by settlement date. JSON

As of 14 August 2026, the fails-to-deliver balance in WULF is 322,603 shares, down 140,961 shares over the last settlement date. Over the last 52 readings it ranged from 4 shares (16 July 2026) to 1,181,936 shares (29 June 2026).

SettlementShares failedPriceValue
2026-08-14322,603$16.31$5.3M
2026-08-13463,564$17.19$8.0M
2026-08-076$17.62$106
2026-08-0669,884$18.07$1.3M
2026-08-0542,737$18.88$807K
2026-08-03260,692$17.66$4.6M
2026-07-315,763$17.82$103K
2026-07-27154,406$18.46$2.9M
2026-07-24827,215$20.05$16.6M
2026-07-2325,015$19.49$488K
2026-07-22394,314$19.87$7.8M
2026-07-175,465$17.98$98K
2026-07-164$19.37$77
2026-07-15146,832$19.41$2.9M
2026-07-1316,003$21.97$352K
2026-07-1014,003$23.20$325K
2026-07-0946,727$22.83$1.1M
2026-07-0811,281$20.24$228K
2026-07-0774,894$22.21$1.7M
2026-07-02157,289$23.58$3.7M
2026-07-0127,280$24.70$674K
2026-06-30954,306$25.58$24.4M
2026-06-291,181,936$25.83$30.5M
2026-06-261,094,615$26.06$28.5M
2026-06-254,088$26.97$110K
2026-06-24111$28.78$3K
2026-06-23558,168$28.31$15.8M
2026-06-22325,907$28.98$9.4M
2026-06-18106,348$27.86$3.0M
2026-06-17980$28.01$27K

Insider trades

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

Over the last 90 days WULF insiders reported 2 open-market buys ($100K) against 2 sells ($4.3M), so the dollar flow leans toward selling. Latest filing: Carter Walter E. on 2026-08-31.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-08-31Carter Walter E.n/aSell131K$15.14$2.0M229K
2026-08-27Prager Paul B.Chief Executive OfficerSell138K$17.06$2.3M3.8M
2026-08-17Bucella Michael C.n/aBuy3K$17.47$50K345K
2026-08-14Bucella Michael C.n/aBuy3K$16.54$50K342K
2026-06-24Tanimoto William JosephChief Accounting OfficerOption exercise10Kn/an/a49K
2026-06-23Bucella Michael C.DirectorOption exercise56Kn/an/a338K
2026-06-23Carter Walter E.DirectorOption exercise56Kn/an/a358K
2026-06-23Fabiano AmandaDirectorOption exercise56Kn/an/a97K
2026-06-23Motz Catherine J.DirectorOption exercise56Kn/an/a209K
2026-06-23Pincus Steven T.DirectorOption exercise63Kn/an/a399K
2026-06-23Prager Lisa A.DirectorOption exercise56Kn/an/a310K
2026-05-27Prager Paul B.Chief Executive OfficerSell57K$26.57$1.5M4.1M
2026-05-27Prager Paul B.Chief Executive OfficerSell110K$25.58$2.8M4.1M
2026-05-26Prager Paul B.Chief Executive OfficerSell167K$24.43$4.1M4.2M
2026-05-18Fleury PatrickChief Financial OfficerOption exercise327Kn/an/a4.1M
2026-05-18Fleury PatrickChief Financial OfficerDisposition129Kn/an/a4.0M
2026-05-18Langlais Kerri M.Chief Strategy OfficerOption exercise327Kn/an/a4.3M
2026-05-18Langlais Kerri M.Chief Strategy OfficerDisposition181Kn/an/a4.2M
2026-05-18Khan Nazar M.Chief Technology OfficerDisposition452Kn/an/a1.5M
2026-05-18Khan Nazar M.Chief Technology OfficerOption exercise818Kn/an/a1.9M
2026-05-18Prager Paul B.Chief Executive OfficerDisposition543Kn/an/a1.8M
2026-05-18Prager Paul B.Chief Executive OfficerOption exercise981Kn/an/a2.3M
2026-05-06Fleury PatrickChief Financial OfficerDisposition129Kn/an/a3.8M
2026-05-06Fleury PatrickChief Financial OfficerOption exercise327Kn/an/a3.9M
2026-05-06Langlais Kerri M.Chief Strategy OfficerDisposition181Kn/an/a4.0M
2026-05-06Langlais Kerri M.Chief Strategy OfficerOption exercise327Kn/an/a4.2M
2026-05-06Khan Nazar M.Chief Technology OfficerDisposition452Kn/an/a1.1M
2026-05-06Khan Nazar M.Chief Technology OfficerOption exercise818Kn/an/a1.6M
2026-05-06Prager Paul B.Chief Executive OfficerDisposition543Kn/an/a1.3M
2026-05-06Prager Paul B.Chief Executive OfficerOption exercise981Kn/an/a1.9M
2026-04-28Prager Paul B.Chief Executive OfficerSell100$21.29$2K884K
2026-04-28Prager Paul B.Chief Executive OfficerSell79K$20.62$1.6M884K
2026-04-27Prager Paul B.Chief Executive OfficerSell57K$21.20$1.2M964K
2026-04-27Prager Paul B.Chief Executive OfficerSell81K$20.51$1.7M1.0M
2026-04-24Khan Nazar M.Chief Technology OfficerOption exercise818Kn/an/a1.2M
2026-04-24Khan Nazar M.Chief Technology OfficerSell452Kn/an/a739K
2026-04-24Fleury PatrickChief Financial OfficerOption exercise327Kn/an/a3.7M
2026-04-24Fleury PatrickChief Financial OfficerDisposition129Kn/an/a3.6M
2026-04-24Prager Paul B.Chief Executive OfficerDisposition543Kn/an/a1.1M
2026-04-24Prager Paul B.Chief Executive OfficerOption exercise981Kn/an/a1.6M
2026-04-24Langlais Kerri M.Chief Strategy OfficerOption exercise327Kn/an/a4.0M
2026-04-24Langlais Kerri M.Chief Strategy OfficerDisposition181Kn/an/a3.9M
2026-04-14Fleury PatrickChief Financial OfficerOption exercise327Kn/an/a3.5M
2026-04-14Fleury PatrickChief Financial OfficerDisposition122Kn/an/a3.4M
2026-04-14Langlais Kerri M.Chief Strategy OfficerOption exercise327Kn/an/a3.9M
2026-04-14Langlais Kerri M.Chief Strategy OfficerDisposition181Kn/an/a3.7M
2026-04-14Khan Nazar M.Chief Technology OfficerOption exercise818Kn/an/a818K
2026-04-14Khan Nazar M.Chief Technology OfficerDisposition445Kn/an/a373K
2026-04-14Prager Paul B.Chief Executive OfficerOption exercise981Kn/an/a1.2M
2026-04-14Prager Paul B.Chief Executive OfficerDisposition535Kn/an/a662K

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

2 Form 144 notices on file for WULF worth $3.0M at the prices reported; 2 in the last 90 days worth $3.0M. Latest: Motz Catherine J. filed on 2026-09-08 to sell 56,023 shares ($996K) from 2026-09-08.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-09-08Motz Catherine J.Director56K$996K0.011%2026-09-08Fidelity Investments
2026-09-01Carter, Walter E.Director131K$2.0M0.026%2026-08-31J.P. Morgan Securities LLC

Large holders (13D and 13G)

One row per reporting person, newest filing first. JSON

24 holders above 5% have filed on WULF, all on Schedule 13G (passive). The largest reported stake is BANK OF NOVA SCOTIA at 7.7% of the class (39,824,376 shares), filed 2026-07-15 for an event on 2026-06-30.

FiledFormHolderSharesOf classEvent
2026-08-1313GMorgan Stanleyparent holding company, corporation30.4M6.1%2026-06-30
2026-08-1013G/Ano. 1JANE STREET GROUP, LLCparent holding company19.9M4.0%2026-06-30
2026-08-1013G/Ano. 1Jane Street Capital, LLCbroker-dealer17.9M3.6%2026-06-30
2026-08-1013G/Ano. 1Leonard Street Holdings, LPother entity2.0M0.4%2026-06-30
2026-08-1013G/Ano. 1Jane Street Global Trading, LLCother entity10K0.0%2026-06-30
2026-08-1013G/Ano. 1Jane Street Singapore Pte. Ltdother entity6590.0%2026-06-30
2026-07-3113G/Ano. 1Vanguard Portfolio Managementinvestment adviser22.4M4.5%2026-06-30
2026-07-3013G/Ano. 1BlackRock, Inc.parent holding company22.3M4.5%2026-06-30
2026-07-1513G/Ano. 1BANK OF NOVA SCOTIAnon-US institution39.8M7.7%2026-06-30
2026-04-1513GKerry A. Tylerindividual21.7M5.1%2026-04-08
2026-04-1513GLone Pine Capital LLCother entity21.7M5.1%2026-04-08
2026-04-1513GDavid F. Craverindividual21.7M5.1%2026-04-08
2026-04-1513GBrian F. Dohertyindividual21.7M5.1%2026-04-08
2026-04-1513GKelly A. Granatindividual21.7M5.1%2026-04-08
2026-04-1513GStephen F. Mandel, Jr.individual21.7M5.1%2026-04-08
2026-03-2713G/Ano. 3The Vanguard Groupinvestment adviser00.0%2026-03-13
2026-02-0413G/Ano. 1JANE STREET GROUP, LLCparent holding company17.7M4.2%2025-12-31
2026-02-0413G/Ano. 1Jane Street Options, LLCbroker-dealer9.6M2.3%2025-12-31
2026-02-0413G/Ano. 1Jane Street Global Trading, LLCother entity8.0M1.9%2025-12-31
2026-02-0413G/Ano. 1Jane Street Singapore Pte. Ltdother entity2200.0%2025-12-31
2026-02-0413G/Ano. 1Jane Street Capital, LLCbroker-dealer37K0.0%2025-12-31
2026-01-3013G/Ano. 2The Vanguard Groupinvestment adviser33.6M8.0%2025-12-31
2026-01-2713GBANK OF NOVA SCOTIAnon-US institution27.4M6.2%2025-12-31
2025-12-0813GCitadel Securities GP LLCparent holding company, other entity22.7M5.4%2025-12-01
2025-12-0813GCitadel Securities Group LPparent holding company, partnership22.7M5.4%2025-12-01
2025-12-0813GKenneth Griffinparent holding company, individual22.8M5.4%2025-12-01
2025-12-0813GCitadel Securities LLCbroker-dealer, other entity17.8M4.3%2025-12-01
2025-12-0813GCitadel Advisors Holdings LPparent holding company, partnership113K0.0%2025-12-01
2025-12-0813GCitadel Advisors LLCinvestment adviser, parent holding company, other entity113K0.0%2025-12-01
2025-12-0813GCitadel GP LLCparent holding company, other entity113K0.0%2025-12-01
2025-11-1213GJANE STREET GROUP, LLCparent holding company20.7M5.1%2025-11-04
2025-11-1213GJane Street Options, LLCbroker-dealer13.9M3.4%2025-11-04
2025-11-1213GJane Street Global Trading, LLCother entity6.8M1.7%2025-11-04
2025-11-1213GJane Street Capital, LLCbroker-dealer28K0.0%2025-11-04
2025-11-1213GJane Street Singapore Pte. Ltdother entity1060.0%2025-11-04

13F holders

Tracked managers holding WULF at their latest 13F. JSON

8 of the 30 tracked managers held WULF at their latest 13F, $2.37B in total at quarter-end prices. Citadel Advisors is the largest at $1.01B (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 6 added shares and 2 cut.

FundQuarterSharesValueOf portfolioChange in shares
Citadel Advisors2026-06-3040.8M$1.01B0.12%+19.7M
Lone Pine Capital2026-06-3024.1M$596.4M3.65%+4.2M
Two Sigma Investments2026-06-3011.5M$284.9M0.21%+3.7M
D. E. Shaw & Co.2026-06-308.4M$207.3M0.10%-1.1M
Point72 Asset Management2026-06-306.5M$159.5M0.18%+1.8M
Millennium Management2026-06-304.0M$99.0M0.04%+2.3M
AQR Capital Management2026-06-30464K$11.5M0.00%+165K
Bridgewater Associates2026-06-3089K$2.2M0.01%-105K

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 Q2 2026 (quarter ended 2026-06-30) TERAWULF INC. reported revenue of $44.8M, down 6.0% from the same quarter a year earlier, and net loss of $939.9M (-1.94 diluted EPS). In FY 2025 it generated -$123.2M of operating cash flow and spent $33.3M on buybacks.

Cash
$2.62B
Equity
$147.3M
Total assets
$8.05B
Shares outstanding
498,968,677

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 20262026-06-30$44.8M-$939.9M-2099.6%-1.94
Q1 20262026-03-31$34.0M-$427.6M-1257.3%-1.01
Q4 2025derived2025-12-31$35.8Mn/an/an/a
Q3 20252025-09-30$50.6M-$455.1M-899.7%-1.13
Q2 20252025-06-30$47.6M-$18.4M-38.6%-0.05
Q1 20252025-03-31$34.4M-$61.4M-178.5%-0.16
Q4 2024derived2024-12-31n/an/an/an/a
Q3 20242024-09-30$27.1M-$22.7M-84.0%-0.06

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$168.5Mn/a-$123.2M$1.06B$33.3Mn/a
FY 20242024-12-31$140.1Mn/a-$24.4M$267.9M$118.2Mn/a
FY 20232023-12-31$69.2Mn/a$4.3M$75.2M$0n/a
FY 20222022-12-31n/an/a-$34.1M$61.1M$0n/a
FY 20212021-12-31n/an/a-$24.1M$109.1Mn/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 2026-07-31 from the cover page.

What this page is

TERAWULF 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 TERAWULF INC. (WULF), SEC CIK 1083301, listed on Nasdaq. 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 2026-08-31.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 2026-08-14.JSON and CSV
Planned sales
SEC EDGAR Form 144EDGAR read every 30 minutes; a notice is filed on or before the sell order. Latest 2026-09-08.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 2026-08-13.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 2026-08-31.JSON and CSV
Company record
EDGAR filing index for CIK 1083301Ticker, 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, 14 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 WULF is sold short?
122,289,767 shares were held short at the 2026-08-31 settlement, 4.0 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 WULF's daily short volume?
On 2026-09-11, 4,245,538 of the 12,664,216 WULF shares reported to FINRA were sold short, 33.5% of the day's reported volume. Short volume is a flow for one day, not a position.
Does WULF have fails to deliver?
The SEC's latest file shows 322,603 WULF shares failed to deliver at settlement 2026-08-14. Fails are reported per settlement date and published twice a month with a lag.
Are WULF insiders buying or selling?
Over the last 90 days WULF insiders reported 2 open-market buys ($100K) against 2 sells ($4.3M), so the dollar flow leans toward selling. Latest filing: Carter Walter E. on 2026-08-31.
Have WULF insiders filed to sell?
2 Form 144 notices on file for WULF worth $3.0M at the prices reported; 2 in the last 90 days worth $3.0M. Latest: Motz Catherine J. filed on 2026-09-08 to sell 56,023 shares ($996K) from 2026-09-08.
Who owns more than 5% of WULF?
24 holders above 5% have filed on WULF, all on Schedule 13G (passive). The largest reported stake is BANK OF NOVA SCOTIA at 7.7% of the class (39,824,376 shares), filed 2026-07-15 for an event on 2026-06-30.
What did WULF report last quarter?
In Q2 2026 (quarter ended 2026-06-30) TERAWULF INC. reported revenue of $44.8M, down 6.0% from the same quarter a year earlier, and net loss of $939.9M (-1.94 diluted EPS). In FY 2025 it generated -$123.2M of operating cash flow and spent $33.3M on buybacks.
Which funds hold WULF?
8 of the 30 tracked managers held WULF at their latest 13F, $2.37B in total at quarter-end prices. Citadel Advisors is the largest at $1.01B (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 6 added shares and 2 cut.

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