PHAT
Phathom Pharmaceuticals, Inc. Common Stock
stockNASDAQ
Market OpenOct 5, 2026 11:55:36 AM EDT
6.78USD-2.023%(-0.14)340,874
6.7600Bid6.7900Ask0.0300SpreadAs of 2026-09-15, there were 10,157,209 shares short with a short interest of 15.56%.
PHAT Short Interest - Official
Short Interest
PHAT Short Position Change - Official
Short Position Change
PHAT Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-09-15 | 15.56 | 10,157,209 | 9.11 | -666,768 | -6.16 | 80,900,934 | 65,292,701 |
| 2026-08-31 | 16.58 | 10,823,977 | 11.01 | -950,002 | -8.07 | 80,900,934 | 65,292,701 |
| 2026-08-14 | 18.03 | 11,773,979 | 6.87 | -1,553,337 | -11.66 | 80,900,934 | 65,292,701 |
| 2026-07-31 | 20.70 | 13,327,316 | 8.70 | +1,205,634 | +9.95 | 80,900,934 | 64,368,622 |
| 2026-07-15 | 20.09 | 12,121,682 | 9.00 | +128,092 | +1.07 | 79,755,953 | 60,340,947 |
| 2026-06-30 | 21.09 | 11,993,590 | 11.67 | +830,971 | +7.44 | 79,755,953 | 56,878,717 |
| 2026-06-15 | 19.63 | 11,162,619 | 10.36 | +874,302 | +8.50 | 79,755,953 | 56,878,717 |
| 2026-05-15 | 20.57 | 10,288,317 | 8.68 | +551,852 | +5.67 | 79,755,953 | 50,018,593 |
| 2026-04-30 | 23.54 | 9,736,465 | 5.88 | +233,502 | +2.46 | 79,430,117 | 41,358,940 |
| 2026-04-15 | 22.98 | 9,502,963 | 9.92 | -1,134,973 | -10.67 | 79,430,117 | 41,358,940 |
| 2026-03-31 | 25.72 | 10,637,936 | 9.23 | -1,019,792 | -8.75 | 78,798,712 | 41,358,940 |
| 2026-03-13 | 28.19 | 11,657,728 | 10.93 | +488,439 | +4.37 | 78,798,712 | 41,358,940 |
| 2026-02-27 | 27.01 | 11,169,289 | 9.81 | -549,002 | -4.69 | 78,013,440 | 41,358,940 |
| 2026-02-13 | 28.33 | 11,718,291 | 14.85 | +321,987 | +2.83 | 78,013,440 | 41,358,940 |
| 2026-01-30 | 27.55 | 11,396,304 | 10.88 | +873,111 | +8.30 | 78,013,440 | 41,358,940 |
| 2026-01-15 | 25.44 | 10,523,193 | 6.48 | -257,190 | -2.39 | 78,013,440 | 41,358,940 |
| 2025-12-31 | 26.07 | 10,780,383 | 10.51 | -1,897,460 | -14.97 | 71,138,440 | 41,358,940 |
| 2025-12-15 | 30.65 | 12,677,843 | 15.98 | -61,185 | -0.48 | 71,138,440 | 41,358,940 |
| 2025-11-28 | 30.83 | 12,739,028 | 16.13 | -339,780 | -2.60 | 71,138,440 | 41,318,961 |
| 2025-11-14 | 32.53 | 13,078,808 | 14.33 | -488,041 | -3.60 | 71,138,440 | 40,199,811 |
| 2025-10-31 | 34.09 | 13,566,849 | 13.59 | -558,846 | -3.96 | 71,138,440 | 39,791,966 |
| 2025-10-15 | 35.50 | 14,125,695 | 9.27 | +926,682 | +7.02 | 70,943,708 | 39,791,966 |
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.