TeraWulf (WULF)
TeraWulf on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as finance services.
128.1M
Short interest
settlement 2026-10-15
3.4
Days to cover
-1.1 days vs prior
38.3%
Short share of volume
2026-11-02
775
Fails to deliver
settlement 2026-10-14
Mon 9 Nov
Next earnings
estimated date
-$5.1M
Insider flow, 90 days
3 buys, 3 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in WULF is 128,133,970 shares, up 6,987,662 shares over the last month. Over the last 48 readings it ranged from 54,723,655 shares (15 November 2024) to 128,133,970 shares (15 October 2026). The latest reading sits at the top of that range. At the reported average volume of 38.1M shares a day that is 3.4 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 128,133,970 | +7.3% | 38,127,678 | 3.36 |
| 2026-09-30 | 119,364,725 | -1.5% | 26,511,085 | 4.50 |
| 2026-09-15 | 121,146,308 | -0.9% | 28,091,970 | 4.31 |
| 2026-08-31 | 122,289,767 | +14.1% | 30,588,781 | 4.00 |
| 2026-08-14 | 107,155,929 | -3.6% | 31,195,052 | 3.44 |
| 2026-07-31 | 111,164,073 | +6.5% | 33,283,441 | 3.34 |
| 2026-07-15 | 104,365,154 | -0.3% | 42,059,269 | 2.48 |
| 2026-06-30 | 104,663,534 | -3.7% | 29,270,998 | 3.58 |
| 2026-06-15 | 108,654,174 | -0.1% | 26,348,221 | 4.12 |
| 2026-05-29 | 108,775,050 | -1.4% | 27,067,543 | 4.02 |
| 2026-05-15 | 110,268,414 | +4.7% | 28,912,586 | 3.81 |
| 2026-04-30 | 105,298,684 | +3.1% | 32,252,366 | 3.26 |
| 2026-04-15 | 102,092,218 | +3.8% | 34,353,423 | 2.97 |
| 2026-03-31 | 98,355,926 | +1.8% | 29,953,348 | 3.28 |
| 2026-03-13 | 96,576,471 | +3.2% | 27,754,604 | 3.48 |
| 2026-02-27 | 93,590,674 | -2.1% | 26,866,074 | 3.48 |
| 2026-02-13 | 95,574,184 | +2.5% | 47,087,769 | 2.03 |
| 2026-01-30 | 93,277,556 | -4.9% | 26,925,182 | 3.46 |
| 2026-01-15 | 98,085,614 | +4.5% | 21,884,281 | 4.48 |
| 2025-12-31 | 93,851,156 | -5.6% | 23,605,547 | 3.98 |
| 2025-12-15 | 99,422,010 | -2.6% | 30,105,663 | 3.30 |
| 2025-11-28 | 102,128,674 | -3.1% | 46,349,430 | 2.20 |
| 2025-11-14 | 105,434,759 | -3.6% | 46,167,869 | 2.28 |
| 2025-10-31 | 109,430,787 | +2.5% | 44,435,509 | 2.46 |
| 2025-10-15 | 106,747,522 | +4.3% | 41,598,535 | 2.57 |
| 2025-09-30 | 102,301,755 | -1.9% | 37,150,281 | 2.75 |
| 2025-09-15 | 104,245,654 | +0.1% | 40,271,463 | 2.59 |
| 2025-08-29 | 104,142,803 | +17.2% | 63,855,599 | 1.63 |
| 2025-08-15 | 88,829,351 | +0.8% | 63,754,708 | 1.39 |
| 2025-07-31 | 88,111,162 | -0.5% | 42,324,792 | 2.08 |
| 2025-07-15 | 88,588,027 | +2.3% | 61,375,572 | 1.44 |
| 2025-06-30 | 86,632,459 | -1.9% | 49,176,005 | 1.76 |
| 2025-06-13 | 88,344,160 | -7.1% | 46,644,638 | 1.89 |
| 2025-05-30 | 95,122,715 | +4.1% | 45,715,816 | 2.08 |
| 2025-05-15 | 91,338,858 | -3.2% | 35,093,136 | 2.60 |
| 2025-04-30 | 94,371,203 | +8.7% | 35,511,066 | 2.66 |
| 2025-04-15 | 86,847,669 | +0.6% | 34,826,510 | 2.49 |
| 2025-03-31 | 86,368,881 | -3.7% | 32,794,300 | 2.63 |
| 2025-03-14 | 89,704,077 | +9.6% | 35,372,281 | 2.54 |
| 2025-02-28 | 81,852,673 | +7.5% | 57,033,674 | 1.44 |
| 2025-02-14 | 76,150,650 | +6.1% | 35,970,940 | 2.12 |
| 2025-01-31 | 71,765,200 | +7.5% | 58,457,595 | 1.23 |
| 2025-01-15 | 66,762,973 | +11.8% | 34,232,488 | 1.95 |
| 2024-12-31 | 59,733,428 | +6.2% | 26,445,068 | 2.26 |
| 2024-12-13 | 56,242,214 | -0.5% | 23,114,316 | 2.43 |
| 2024-11-29 | 56,525,467 | +3.3% | 23,615,888 | 2.39 |
| 2024-11-15 | 54,723,655 | -8.0% | 29,340,761 | 1.87 |
| 2024-10-31 | 59,474,943 | +24.7% | 34,394,632 | 1.73 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of WULF volume is 38.3%, down 6.6 points over the last five sessions. Over the last 30 readings it ranged from 32.4% (15 October 2026) to 55.6% (29 September 2026). The latest reading is 5.0 points below the 30-session average of 43.2%, on 16.5M shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 6.3M | 16.5M | 38.3% | 250,047 |
| 2026-10-30 | 7.5M | 22.9M | 32.6% | 128,554 |
| 2026-10-29 | 7.6M | 18.8M | 40.2% | 155,057 |
| 2026-10-28 | 11.4M | 23.3M | 49.0% | 131,320 |
| 2026-10-27 | 7.8M | 17.7M | 43.9% | 181,503 |
| 2026-10-26 | 9.4M | 21.0M | 44.8% | 55,815 |
| 2026-10-23 | 6.5M | 15.8M | 41.1% | 788,280 |
| 2026-10-22 | 7.6M | 21.3M | 35.6% | 589,764 |
| 2026-10-21 | 10.9M | 21.0M | 51.9% | 68,518 |
| 2026-10-20 | 7.3M | 16.3M | 45.0% | 82,556 |
| 2026-10-19 | 7.1M | 17.0M | 41.9% | 113,831 |
| 2026-10-16 | 12.3M | 25.9M | 47.4% | 1,388,709 |
| 2026-10-15 | 16.8M | 51.9M | 32.4% | 2,141,979 |
| 2026-10-14 | 8.4M | 24.6M | 34.4% | 695,849 |
| 2026-10-13 | 6.6M | 15.5M | 42.4% | 46,262 |
| 2026-10-12 | 2.8M | 7.1M | 39.7% | 19,425 |
| 2026-10-09 | 3.1M | 6.3M | 50.0% | 29,851 |
| 2026-10-08 | 6.6M | 19.3M | 33.9% | 33,521 |
| 2026-10-07 | 5.2M | 12.4M | 41.8% | 243,431 |
| 2026-10-06 | 6.8M | 14.7M | 46.2% | 23,477 |
| 2026-10-05 | 8.1M | 14.8M | 54.5% | 19,403 |
| 2026-10-02 | 4.6M | 11.5M | 39.5% | 21,799 |
| 2026-10-01 | 7.6M | 13.7M | 55.2% | 42,326 |
| 2026-09-30 | 4.6M | 8.9M | 51.6% | 84 |
| 2026-09-29 | 5.9M | 10.6M | 55.6% | 49,629 |
| 2026-09-28 | 3.5M | 8.1M | 43.9% | 600 |
| 2026-09-25 | 4.5M | 11.3M | 40.1% | 8,209 |
| 2026-09-24 | 4.4M | 11.6M | 37.8% | 41,576 |
| 2026-09-23 | 6.5M | 15.6M | 41.4% | 60,410 |
| 2026-09-22 | 4.8M | 10.7M | 45.1% | 33,791 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 14 October 2026, the fails-to-deliver balance in WULF is 775 shares, down 75 shares over the last settlement date. Over the last 30 readings it ranged from 6 shares (7 August 2026) to 1,368,565 shares (24 August 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-14 | 775 | $13.21 | $10K |
| 2026-10-13 | 850 | $13.37 | $11K |
| 2026-10-09 | 368,304 | $13.65 | $5.0M |
| 2026-10-08 | 93,284 | $14.40 | $1.3M |
| 2026-10-06 | 101,006 | $14.79 | $1.5M |
| 2026-10-05 | 709 | $15.49 | $11K |
| 2026-10-02 | 27,174 | $14.91 | $405K |
| 2026-10-01 | 59,922 | $14.80 | $887K |
| 2026-09-30 | 17,572 | $15.09 | $265K |
| 2026-09-22 | 146,260 | $17.45 | $2.6M |
| 2026-09-21 | 114,853 | $17.01 | $2.0M |
| 2026-09-18 | 48,825 | $16.47 | $804K |
| 2026-09-15 | 440 | $15.47 | $7K |
| 2026-09-14 | 4,867 | $16.74 | $81K |
| 2026-09-11 | 41,239 | $16.14 | $666K |
| 2026-09-10 | 27 | $17.13 | $463 |
| 2026-09-09 | 226,702 | $17.86 | $4.0M |
| 2026-09-08 | 11,093 | $16.51 | $183K |
| 2026-09-04 | 520,287 | $16.23 | $8.4M |
| 2026-09-03 | 10,454 | $14.82 | $155K |
| 2026-08-26 | 79,522 | $16.32 | $1.3M |
| 2026-08-25 | 34,883 | $15.48 | $540K |
| 2026-08-24 | 1,368,565 | $15.64 | $21.4M |
| 2026-08-21 | 1,057 | $16.45 | $17K |
| 2026-08-19 | 367,961 | $15.62 | $5.7M |
| 2026-08-18 | 165,126 | $17.60 | $2.9M |
| 2026-08-17 | 146,192 | $17.38 | $2.5M |
| 2026-08-14 | 322,603 | $16.31 | $5.3M |
| 2026-08-13 | 463,564 | $17.19 | $8.0M |
| 2026-08-07 | 6 | $17.62 | $106 |
Insider trades
SEC Form 4, newest first. JSONOver the last 90 days WULF insiders reported 3 open-market buys ($190K) against 3 sells ($5.3M), so the dollar flow leans toward selling. Latest filing: Carter Walter E. (Director) on 2026-09-30.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-30 | Carter Walter E. | Director | Grant | 2K | price not stated in the filing | not stated | 231K |
| 2026-09-30 | Prager Lisa A. | Director | Grant | 2K | price not stated in the filing | not stated | 313K |
| 2026-09-30 | Bucella Michael C. | Director | Grant | 2K | price not stated in the filing | not stated | 352K |
| 2026-09-29 | Khan Nazar M. | Chief Technology Officer | Exercise or conversion | 667K | price not stated in the filing | not stated | 667K |
| 2026-09-15 | Bucella Michael C. | Director | Buy | 6K | $14.79 | $90K | 351K |
| 2026-09-08 | Motz Catherine J. | Director | Sell | 56K | $17.81 | $998K | 153K |
| 2026-08-31 | Carter Walter E. | Director | Sell | 131K | $15.14 | $2.0M | 229K |
| 2026-08-27 | Prager Paul B. | Chief Executive Officer | Sell | 138K | $17.06 | $2.3M | 3.8M |
| 2026-08-17 | Bucella Michael C. | Director | Buy | 3K | $17.47 | $50K | 345K |
| 2026-08-16 | Tanimoto William Joseph | Chief Accounting Officer | Exercise or conversion | 7K | price not stated in the filing | not stated | 56K |
| 2026-08-14 | Bucella Michael C. | Director | Buy | 3K | $16.54 | $50K | 342K |
| 2026-08-03 | Langlais Kerri M. | Chief Strategy Officer | Returned to company | 277K | price not stated in the filing | not stated | 4.4M |
| 2026-08-01 | Fleury Patrick | Chief Financial Officer | Exercise or conversion | 500K | price not stated in the filing | not stated | 500K |
| 2026-08-01 | Langlais Kerri M. | Chief Strategy Officer | Exercise or conversion | 500K | price not stated in the filing | not stated | 4.7M |
| 2026-06-30 | Prager Lisa A. | Director | Grant | 1K | price not stated in the filing | not stated | 312K |
| 2026-06-30 | Carter Walter E. | Director | Grant | 1K | price not stated in the filing | not stated | 360K |
| 2026-06-30 | Bucella Michael C. | Director | Grant | 1K | price not stated in the filing | not stated | 339K |
| 2026-06-29 | Prager Paul B. | Chief Executive Officer | Sell | 138K | $26.60 | $3.7M | 3.9M |
| 2026-06-24 | Tanimoto William Joseph | Chief Accounting Officer | Exercise or conversion | 10K | price not stated in the filing | not stated | 49K |
| 2026-06-23 | Bucella Michael C. | Director | Exercise or conversion | 56K | price not stated in the filing | not stated | 338K |
| 2026-06-23 | Carter Walter E. | Director | Exercise or conversion | 56K | price not stated in the filing | not stated | 358K |
| 2026-06-23 | Fabiano Amanda | Director | Exercise or conversion | 56K | price not stated in the filing | not stated | 97K |
| 2026-06-23 | Motz Catherine J. | Director | Exercise or conversion | 56K | price not stated in the filing | not stated | 209K |
| 2026-06-23 | Pincus Steven T. | Director | Exercise or conversion | 63K | price not stated in the filing | not stated | 399K |
| 2026-06-23 | Prager Lisa A. | Director | Exercise or conversion | 56K | price not stated in the filing | not stated | 310K |
| 2026-05-27 | Prager Paul B. | Chief Executive Officer | Sell | 57K | $26.57 | $1.5M | 4.1M |
| 2026-05-27 | Prager Paul B. | Chief Executive Officer | Sell | 110K | $25.58 | $2.8M | 4.1M |
| 2026-05-26 | Prager Paul B. | Chief Executive Officer | Sell | 167K | $24.43 | $4.1M | 4.2M |
| 2026-05-18 | Fleury Patrick | Chief Financial Officer | Exercise or conversion | 327K | price not stated in the filing | not stated | 4.1M |
| 2026-05-18 | Fleury Patrick | Chief Financial Officer | Returned to company | 129K | price not stated in the filing | not stated | 4.0M |
| 2026-05-18 | Langlais Kerri M. | Chief Strategy Officer | Exercise or conversion | 327K | price not stated in the filing | not stated | 4.3M |
| 2026-05-18 | Langlais Kerri M. | Chief Strategy Officer | Returned to company | 181K | price not stated in the filing | not stated | 4.2M |
| 2026-05-18 | Khan Nazar M. | Chief Technology Officer | Returned to company | 452K | price not stated in the filing | not stated | 1.5M |
| 2026-05-18 | Khan Nazar M. | Chief Technology Officer | Exercise or conversion | 818K | price not stated in the filing | not stated | 1.9M |
| 2026-05-18 | Prager Paul B. | Chief Executive Officer | Returned to company | 543K | price not stated in the filing | not stated | 1.8M |
| 2026-05-18 | Prager Paul B. | Chief Executive Officer | Exercise or conversion | 981K | price not stated in the filing | not stated | 2.3M |
| 2026-05-06 | Fleury Patrick | Chief Financial Officer | Returned to company | 129K | price not stated in the filing | not stated | 3.8M |
| 2026-05-06 | Fleury Patrick | Chief Financial Officer | Exercise or conversion | 327K | price not stated in the filing | not stated | 3.9M |
| 2026-05-06 | Langlais Kerri M. | Chief Strategy Officer | Returned to company | 181K | price not stated in the filing | not stated | 4.0M |
| 2026-05-06 | Langlais Kerri M. | Chief Strategy Officer | Exercise or conversion | 327K | price not stated in the filing | not stated | 4.2M |
| 2026-05-06 | Khan Nazar M. | Chief Technology Officer | Returned to company | 452K | price not stated in the filing | not stated | 1.1M |
| 2026-05-06 | Khan Nazar M. | Chief Technology Officer | Exercise or conversion | 818K | price not stated in the filing | not stated | 1.6M |
| 2026-05-06 | Prager Paul B. | Chief Executive Officer | Returned to company | 543K | price not stated in the filing | not stated | 1.3M |
| 2026-05-06 | Prager Paul B. | Chief Executive Officer | Exercise or conversion | 981K | price not stated in the filing | not stated | 1.9M |
| 2026-04-28 | Prager Paul B. | Chief Executive Officer | Sell | 100 | $21.29 | $2K | 884K |
| 2026-04-28 | Prager Paul B. | Chief Executive Officer | Sell | 79K | $20.62 | $1.6M | 884K |
| 2026-04-27 | Prager Paul B. | Chief Executive Officer | Sell | 57K | $21.20 | $1.2M | 964K |
| 2026-04-27 | Prager Paul B. | Chief Executive Officer | Sell | 81K | $20.51 | $1.7M | 1.0M |
| 2026-04-24 | Khan Nazar M. | Chief Technology Officer | Exercise or conversion | 818K | price not stated in the filing | not stated | 1.2M |
| 2026-04-24 | Khan Nazar M. | Chief Technology Officer | Sell | 452K | price not stated in the filing | not stated | 739K |
| 2026-04-24 | Fleury Patrick | Chief Financial Officer | Exercise or conversion | 327K | price not stated in the filing | not stated | 3.7M |
| 2026-04-24 | Fleury Patrick | Chief Financial Officer | Returned to company | 129K | price not stated in the filing | not stated | 3.6M |
| 2026-04-24 | Prager Paul B. | Chief Executive Officer | Returned to company | 543K | price not stated in the filing | not stated | 1.1M |
| 2026-04-24 | Prager Paul B. | Chief Executive Officer | Exercise or conversion | 981K | price not stated in the filing | not stated | 1.6M |
| 2026-04-24 | Langlais Kerri M. | Chief Strategy Officer | Exercise or conversion | 327K | price not stated in the filing | not stated | 4.0M |
| 2026-04-24 | Langlais Kerri M. | Chief Strategy Officer | Returned to company | 181K | price not stated in the filing | not stated | 3.9M |
| 2026-04-14 | Fleury Patrick | Chief Financial Officer | Exercise or conversion | 327K | price not stated in the filing | not stated | 3.5M |
| 2026-04-14 | Fleury Patrick | Chief Financial Officer | Returned to company | 122K | price not stated in the filing | not stated | 3.4M |
| 2026-04-14 | Langlais Kerri M. | Chief Strategy Officer | Exercise or conversion | 327K | price not stated in the filing | not stated | 3.9M |
| 2026-04-14 | Langlais Kerri M. | Chief Strategy Officer | Returned to company | 181K | price not stated in the filing | not stated | 3.7M |
| 2026-04-14 | Khan Nazar M. | Chief Technology Officer | Exercise or conversion | 818K | price not stated in the filing | not stated | 818K |
| 2026-04-14 | Khan Nazar M. | Chief Technology Officer | Returned to company | 445K | price not stated in the filing | not stated | 373K |
| 2026-04-14 | Prager Paul B. | Chief Executive Officer | Exercise or conversion | 981K | price not stated in the filing | not stated | 1.2M |
| 2026-04-14 | Prager Paul B. | Chief Executive Officer | Returned to company | 535K | price not stated in the filing | not stated | 662K |
| 2026-03-31 | Bucella Michael C. | Director | Grant | 2K | price not stated in the filing | not stated | 282K |
| 2026-03-31 | Carter Walter E. | Director | Grant | 2K | price not stated in the filing | not stated | 302K |
| 2026-03-31 | Prager Lisa A. | Director | Grant | 2K | price not stated in the filing | not stated | 254K |
| 2026-03-25 | Prager Paul B. | Chief Executive Officer | Sell | 4K | $17.62 | $67K | 217K |
| 2026-03-25 | Prager Paul B. | Chief Executive Officer | Sell | 134K | $16.94 | $2.3M | 221K |
| 2026-03-24 | Prager Paul B. | Chief Executive Officer | Sell | 138K | $16.10 | $2.2M | 354K |
| 2026-03-20 | Bucella Michael C. | Director | Buy | 2K | $15.04 | $25K | 280K |
| 2026-03-19 | Bucella Michael C. | Director | Buy | 2K | $14.96 | $25K | 278K |
| 2026-03-18 | Bucella Michael C. | Director | Buy | 2K | $15.79 | $25K | 277K |
| 2026-03-17 | Fleury Patrick | Chief Financial Officer | Sell | 26K | $16.14 | $426K | 0 |
| 2026-03-17 | Fleury Patrick | Chief Financial Officer | Sell | 574K | $16.14 | $9.3M | 3.2M |
| 2026-03-17 | Bucella Michael C. | Director | Buy | 2K | $16.00 | $25K | 275K |
| 2026-03-11 | Bucella Michael C. | Director | Buy | 1K | $14.91 | $20K | 274K |
| 2026-03-09 | Bucella Michael C. | Director | Buy | 752 | $13.31 | $10K | 272K |
| 2026-03-06 | Bucella Michael C. | Director | Buy | 679 | $14.80 | $10K | 271K |
| 2026-03-05 | Bucella Michael C. | Director | Buy | 654 | $15.31 | $10K | 271K |
| 2026-03-04 | Bucella Michael C. | Director | Buy | 3K | $15.78 | $50K | 270K |
| 2026-01-09 | Tanimoto William Joseph | Chief Accounting Officer | Exercise or conversion | 17K | price not stated in the filing | not stated | 44K |
| 2026-01-09 | Tanimoto William Joseph | Chief Accounting Officer | Returned to company | 5K | price not stated in the filing | not stated | 39K |
| 2026-01-02 | Tanimoto William Joseph | Chief Accounting Officer | Returned to company | 2K | price not stated in the filing | not stated | 28K |
| 2026-01-02 | Tanimoto William Joseph | Chief Accounting Officer | Exercise or conversion | 5K | price not stated in the filing | not stated | 29K |
| 2025-12-31 | Prager Paul B. | Chief Executive Officer | Exercise or conversion | 142K | price not stated in the filing | not stated | 142K |
| 2025-12-31 | Carter Walter E. | Director | Grant | 3K | price not stated in the filing | not stated | 300K |
| 2025-12-31 | Prager Lisa A. | Director | Grant | 2K | price not stated in the filing | not stated | 253K |
| 2025-12-23 | Prager Paul B. | Chief Executive Officer | Other transaction | 553K | price not stated in the filing | not stated | 4.4M |
| 2025-12-23 | Prager Paul B. | Chief Executive Officer | Other transaction | 2.0M | price not stated in the filing | not stated | 33.6M |
| 2025-12-23 | Prager Paul B. | Chief Executive Officer | Other transaction | 447K | price not stated in the filing | not stated | 492K |
| 2025-12-22 | Khan Nazar M. | Chief Technology Officer | Gift | 180K | price not stated in the filing | not stated | 14.3M |
| 2025-12-09 | Langlais Kerri M. | Chief Strategy Officer | Exercise or conversion | 36K | price not stated in the filing | not stated | 3.6M |
| 2025-12-09 | Pincus Steven T. | Director | Exercise or conversion | 7K | price not stated in the filing | not stated | 336K |
| 2025-12-09 | Bucella Michael C. | Director | Exercise or conversion | 35K | price not stated in the filing | not stated | 263K |
| 2025-11-20 | Prager Paul B. | Chief Executive Officer | Other transaction | 3.0M | price not stated in the filing | not stated | 35.6M |
| 2025-11-13 | Bucella Michael C. | Director | Buy | 4K | $12.01 | $50K | 267K |
| 2025-10-17 | Prager Paul B. | Chief Executive Officer | Grant | 1.2M | price not stated in the filing | not stated | 5.0M |
| 2025-09-30 | Prager Lisa A. | Director | Grant | 2K | price not stated in the filing | not stated | 251K |
| 2025-09-30 | Prager Paul B. | Chief Executive Officer | Grant | 3.6M | price not stated in the filing | not stated | 39.7M |
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 rarer.
Planned sales (Form 144)
Newest first. JSON10 Form 144 notices on file for WULF worth $94.0M at the prices reported; 3 in the last 90 days worth $55.3M. Latest: Prager Paul B. filed on 2026-09-22 to sell 3,000,000 shares ($52.4M) from 2026-09-22.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-09-22 | Prager Paul B.Officer, Director | 3.0M | $52.4M | 0.601% | 2026-09-22 | BofA Securities, Inc. |
| 2026-09-08 | Motz Catherine J.Director | 56K | $996K | 0.011% | 2026-09-08 | Fidelity Investments |
| 2026-09-01 | Carter, Walter E.Director | 131K | $2.0M | 0.026% | 2026-08-31 | J.P. Morgan Securities LLC |
| 2026-06-29 | Beowulf E&D Holdings Inc.Director, Officer | 275K | $7.1M | 0.055% | 2026-06-29 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-26 | BEOWULF E&D HOLDINGS INC.Director, Officer | 333K | $7.6M | 0.067% | 2026-05-26 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-04-28 | PAUL PRAGERDirector, Officer | 79K | $1.7M | 0.019% | 2026-04-28 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-24 | PAUL PRAGERDirector, Officer, 10% Stockholder | 492K | $8.0M | 0.116% | 2026-03-24 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-17 | Patrick FleuryAffiliate | 600K | $9.8M | 0.141% | 2026-03-17 | J.P. Morgan Securities LLC |
| 2025-09-19 | Motz Catherine J.Director | 53K | $601K | 0.014% | 2025-09-19 | Fidelity Brokerage Services LLC |
| 2025-09-19 | Lake Harriet Holdings, LLCAffiliate | 350K | $3.9M | 0.089% | 2025-09-19 | J.P. Morgan Securities LLC |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON13 holders report 5% or more of WULF in their latest filing, all on Schedule 13G (passive). The largest reported stake is XXVI Holdings Inc. at 7.6% of the class (41,011,803 shares), filed 2026-09-25 for an event on 2026-09-11.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-10-19 | 13G/Ano. 2 | BANK OF NOVA SCOTIAnon-US institution | 25.6M | 4.9% | 2026-09-30 |
| 2026-09-25 | 13G | XXVI Holdings Inc.corporation | 41.0M | 7.6% | 2026-09-11 |
| 2026-09-25 | 13G | Alphabet Inc.corporation | 41.0M | 7.6% | 2026-09-11 |
| 2026-09-25 | 13G | Google LLCother entity | 41.0M | 7.6% | 2026-09-11 |
| 2026-08-13 | 13G | Morgan Stanleyparent holding company, corporation | 30.4M | 6.1% | 2026-06-30 |
| 2026-08-10 | 13G/Ano. 1 | JANE STREET GROUP, LLCparent holding company | 19.9M | 4.0% | 2026-06-30 |
| 2026-08-10 | 13G/Ano. 1 | Jane Street Capital, LLCbroker-dealer | 17.9M | 3.6% | 2026-06-30 |
| 2026-08-10 | 13G/Ano. 1 | Leonard Street Holdings, LPother entity | 2.0M | 0.4% | 2026-06-30 |
| 2026-08-10 | 13G/Ano. 1 | Jane Street Global Trading, LLCother entity | 10K | 0.0% | 2026-06-30 |
| 2026-08-10 | 13G/Ano. 1 | Jane Street Singapore Pte. Ltdother entity | 659 | 0.0% | 2026-06-30 |
| 2026-07-31 | 13G/Ano. 1 | Vanguard Portfolio Managementinvestment adviser | 22.4M | 4.5% | 2026-06-30 |
| 2026-07-30 | 13G/Ano. 1 | BlackRock, Inc.parent holding company | 22.3M | 4.5% | 2026-06-30 |
| 2026-05-27 | 13G | Citadel Securities GP LLCparent holding company, other entity | 29.1M | 5.9% | 2026-05-19 |
| 2026-05-27 | 13G | Citadel Securities Group LPparent holding company, partnership | 29.1M | 5.9% | 2026-05-19 |
| 2026-05-27 | 13G | Kenneth Griffinparent holding company, individual | 29.1M | 5.9% | 2026-05-19 |
| 2026-05-27 | 13G | Citadel Securities LLCbroker-dealer, other entity | 21.8M | 4.4% | 2026-05-19 |
| 2026-05-27 | 13G | Citadel Advisors LLCinvestment adviser, parent holding company, other entity | 0 | 0.0% | 2026-05-19 |
| 2026-05-27 | 13G | Citadel Advisors Holdings LPparent holding company, partnership | 0 | 0.0% | 2026-05-19 |
| 2026-05-27 | 13G | Citadel GP LLCparent holding company, other entity | 0 | 0.0% | 2026-05-19 |
| 2026-04-15 | 13G | Lone Pine Capital LLCother entity | 21.7M | 5.1% | 2026-04-08 |
| 2026-04-15 | 13G | David F. Craverindividual | 21.7M | 5.1% | 2026-04-08 |
| 2026-04-15 | 13G | Brian F. Dohertyindividual | 21.7M | 5.1% | 2026-04-08 |
| 2026-04-15 | 13G | Kelly A. Granatindividual | 21.7M | 5.1% | 2026-04-08 |
| 2026-04-15 | 13G | Stephen F. Mandel, Jr.individual | 21.7M | 5.1% | 2026-04-08 |
| 2026-04-15 | 13G | Kerry A. Tylerindividual | 21.7M | 5.1% | 2026-04-08 |
| 2026-03-27 | 13G/Ano. 3 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2026-02-04 | 13G/Ano. 1 | Jane Street Options, LLCbroker-dealer | 9.6M | 2.3% | 2025-12-31 |
13F holders
Tracked managers holding WULF at their latest 13F. JSON8 of the 30 tracked managers held WULF at their latest 13F, $1.37B in total at quarter-end prices. Lone Pine Capital is the largest at $596.4M (3.6% of its portfolio) as of 2026-06-30. Over the prior quarter 6 added shares and 2 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Lone Pine Capital | 2026-06-30 | 24.1M | $596.4M | 3.65% | +4.2M |
| Two Sigma Investments | 2026-06-30 | 11.5M | $283.9M | 0.21% | +3.7M |
| Citadel Advisors | 2026-06-30 | 7.1M | $175.3M | 0.02% | +4.3M |
| Point72 Asset Management | 2026-06-30 | 5.2M | $127.8M | 0.14% | +2.0M |
| Millennium Management | 2026-06-30 | 3.5M | $86.7M | 0.03% | +1.9M |
| D. E. Shaw & Co. | 2026-06-30 | 3.4M | $83.2M | 0.04% | -847K |
| AQR Capital Management | 2026-06-30 | 464K | $11.5M | 0.00% | +165K |
| Bridgewater Associates | 2026-06-30 | 89K | $2.2M | 0.01% | -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. JSONIn Q2 FY 2026 (quarter ended 2026-06-30) TeraWulf 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
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q2 FY 2026 | 2026-06-30 | $44.8M | -$939.9M | -2099.6% | -1.94 |
| Q1 FY 2026 | 2026-03-31 | $34.0M | -$427.6M | -1257.3% | -1.01 |
| Q4 FY 2025derived | 2025-12-31 | $35.8M | -$126.6M | -353.2% | n/a |
| Q3 FY 2025 | 2025-09-30 | $50.6M | -$455.1M | -899.7% | -1.13 |
| Q2 FY 2025 | 2025-06-30 | $47.6M | -$18.4M | -38.6% | -0.05 |
| Q1 FY 2025 | 2025-03-31 | $34.4M | -$61.4M | -178.5% | -0.16 |
| Q4 FY 2024derived | 2024-12-31 | n/a | -$29.2M | n/a | n/a |
| Q3 FY 2024 | 2024-09-30 | $27.1M | -$22.7M | -84.0% | -0.06 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-12-31 | $168.5M | -$661.4M | -$123.2M | $1.06B | $33.3M | n/a |
| FY 2024 | 2024-12-31 | $140.1M | -$72.4M | -$24.4M | $267.9M | $118.2M | n/a |
| FY 2023 | 2023-12-31 | $69.2M | -$73.4M | $4.3M | $75.2M | $0 | n/a |
| FY 2022 | 2022-12-31 | n/a | -$90.8M | -$34.1M | $61.1M | $0 | n/a |
| FY 2021 | 2021-12-31 | n/a | -$95.7M | -$24.1M | $109.1M | n/a | n/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 the cash the company paid to repurchase its common stock in the year, not the amount authorized. 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 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 puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, 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 one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows TeraWulf (WULF), SEC CIK 1083301, 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 updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-14.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-09-22.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-10-19.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Financials
- SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-05.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-09-30.JSON and CSV
- Company record
- EDGAR filing index for CIK 1083301Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
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 large short position are rare and stand out; insider sells next to one 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.
Other companies the SEC classifies as finance services
Other company pages
Datasets
Frequently Asked Questions
How much of WULF is sold short?
128,133,970 shares were held short at the 2026-10-15 settlement, 3.4 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 2026-11-02, 6,307,532 of the 16,480,270 WULF shares reported to FINRA were sold short, 38.3% 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 775 WULF shares failed to deliver at settlement 2026-10-14. 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 3 open-market buys ($190K) against 3 sells ($5.3M), so the dollar flow leans toward selling. Latest filing: Carter Walter E. (Director) on 2026-09-30.
Have WULF insiders filed to sell?
10 Form 144 notices on file for WULF worth $94.0M at the prices reported; 3 in the last 90 days worth $55.3M. Latest: Prager Paul B. filed on 2026-09-22 to sell 3,000,000 shares ($52.4M) from 2026-09-22.
Who owns 5% or more of WULF?
13 holders report 5% or more of WULF in their latest filing, all on Schedule 13G (passive). The largest reported stake is XXVI Holdings Inc. at 7.6% of the class (41,011,803 shares), filed 2026-09-25 for an event on 2026-09-11.
What did WULF report last quarter?
In Q2 FY 2026 (quarter ended 2026-06-30) TeraWulf 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 tracked 13F managers own WULF?
8 of the 30 tracked 13F managers held WULF shares at their latest filing, $1.37B in all. The largest: Lone Pine Capital (24.1M shares, $596.4M), Two Sigma Investments (11.5M shares, $283.9M), Ken Griffin's Citadel Advisors (7.1M shares, $175.3M), Steve Cohen's Point72 Asset Management (5.2M shares, $127.8M), Izzy Englander's Millennium Management (3.5M shares, $86.7M), D. E. Shaw & Co. (3.4M shares, $83.2M). The table above lists all 8.
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.