ARWR
Arrowhead Research Corporation
stockNASDAQ
At CloseOct 21, 2026 3:59:59 PM EDT
58.83USD-0.144%(-0.09)1,371,453
Pre-marketOct 21, 2026 9:29:30 AM EDT
59.50USD+0.984%(+0.58)
As of 2026-09-30, there were 10,760,463 shares short with a short interest of 8.76%.
ARWR Short Interest - Official
ARWR Short Position Change - Official
ARWR Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-09-30 | 8.76 | 10,760,463 | 4.03 | +1,488,173 | +16.05 | 141,254,467 | 122,776,614 |
| 2026-09-15 | 7.55 | 9,272,290 | 5.15 | -154,159 | -1.64 | 141,254,467 | 122,776,614 |
| 2026-08-31 | 7.68 | 9,426,449 | 8.81 | +219,023 | +2.38 | 141,254,467 | 122,776,614 |
| 2026-08-14 | 7.50 | 9,207,426 | 7.81 | -448,652 | -4.65 | 141,254,467 | 122,776,614 |
| 2026-07-31 | 7.86 | 9,656,078 | 3.85 | +20,781 | +0.22 | 140,857,021 | 122,776,614 |
| 2026-07-15 | 7.85 | 9,635,297 | 4.86 | +1,204,517 | +14.29 | 140,857,021 | 122,779,431 |
| 2026-06-30 | 6.87 | 8,430,780 | 2.21 | -3,308,064 | -28.18 | 140,857,021 | 122,779,431 |
| 2026-06-15 | 9.56 | 11,738,844 | 8.18 | -1,186,788 | -9.18 | 140,857,021 | 122,779,431 |
| 2026-05-15 | 10.53 | 12,925,632 | 7.01 | -13,814 | -0.11 | 140,857,021 | 122,755,485 |
| 2026-04-30 | 11.07 | 12,939,446 | 6.74 | +927,087 | +7.72 | 140,032,190 | 116,922,523 |
| 2026-04-15 | 10.27 | 12,012,359 | 7.66 | -992,022 | -7.63 | 140,032,190 | 116,922,523 |
| 2026-03-31 | 11.12 | 13,004,381 | 5.35 | +1,575,702 | +13.79 | 140,032,190 | 116,922,523 |
| 2026-03-13 | 9.77 | 11,428,679 | 4.31 | +286,783 | +2.57 | 140,032,190 | 116,922,523 |
| 2026-02-27 | 9.53 | 11,141,896 | 5.92 | +323,000 | +2.99 | 140,032,190 | 116,922,523 |
| 2026-02-13 | 9.25 | 10,818,896 | 2.15 | -331,385 | -2.97 | 140,032,190 | 116,922,523 |
| 2026-01-30 | 9.54 | 11,150,281 | 5.68 | +359,447 | +3.33 | 140,010,690 | 116,922,523 |
| 2026-01-15 | 9.23 | 10,790,834 | 3.00 | +1,164,532 | +12.10 | 139,408,632 | 116,922,523 |
| 2025-12-31 | 8.23 | 9,626,302 | 5.33 | -608,248 | -5.94 | 135,809,558 | 116,922,523 |
| 2025-12-15 | 8.76 | 10,234,550 | 2.95 | -1,602,243 | -13.54 | 135,809,558 | 116,811,159 |
| 2025-11-28 | 10.11 | 11,836,793 | 3.44 | +240,689 | +2.08 | 135,809,558 | 117,122,163 |
| 2025-11-14 | 9.70 | 11,596,104 | 7.11 | -188,406 | -1.60 | 138,257,550 | 119,533,330 |
| 2025-10-31 | 9.86 | 11,784,510 | 6.82 | +136,083 | +1.17 | 138,257,550 | 119,533,330 |
Historical data is split-adjusted.
1 Data from Finra. Finra publishes an updated file every two weeks.
2 Days to Cover (DTC) is also called Short Ratio. This is the Short Position / Average Daily Trading Volume.