PHAT
Phathom Pharmaceuticals, Inc.Company with tickers: PHAT
CIK
1783183
CUSIP
71722W107
Shares Outstanding
79,755,953
13F Activity (30d)
117 filings
116 filers
Total shares sold short and not yet covered, reported to FINRA by broker-dealers and published twice a month (bi-monthly). Days to cover divides the short position by average daily volume; a high value (above 5) can signal short-squeeze potential.
Short Squeeze Score
65/100
Short interest 13.0% of shares — P93
Days to cover 9.4 — P89
Short-volume trend -12.9% — P13
Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-05-29). Equal-weight mean of the available factors.
Short Interest History
| Settlement Date | Current Position | Previous Position | Change | Days to Cover |
|---|---|---|---|---|
| 2026-05-29 | 10,352,426 | 10,288,317 | +64,109 | 9.41 |
| 2026-05-15 | 10,288,317 | 9,736,465 | +551,852 | 8.68 |
| 2026-04-30 | 9,736,465 | 9,502,963 | +233,502 | 5.88 |
| 2026-04-15 | 9,502,963 | 10,637,936 | -1,134,973 | 9.92 |
| 2026-03-31 | 10,637,936 | 11,657,728 | -1,019,792 | 9.23 |
| 2026-03-13 | 11,657,728 | 11,169,289 | +488,439 | 10.93 |
| 2026-02-27 | 11,169,289 | 11,718,291 | -549,002 | 9.81 |
| 2026-02-13 | 11,718,291 | 11,396,304 | +321,987 | 14.85 |
| 2026-01-30 | 11,396,304 | 10,523,193 | +873,111 | 10.88 |
| 2026-01-15 | 10,523,193 | 10,780,383 | -257,190 | 6.48 |
| 2025-12-31 | 10,780,383 | 12,677,843 | -1,897,460 | 10.51 |
| 2025-12-15 | 12,677,843 | 12,739,028 | -61,185 | 15.98 |
| 2025-11-28 | 12,739,028 | 13,078,808 | -339,780 | 16.13 |
| 2025-11-14 | 13,078,808 | 13,566,849 | -488,041 | 14.33 |
| 2025-10-31 | 13,566,849 | 14,125,695 | -558,846 | 13.59 |
| 2025-10-15 | 14,125,695 | 13,199,013 | +926,682 | 9.27 |
| 2025-09-30 | 13,199,013 | 13,999,721 | -800,708 | 10.71 |
| 2025-09-15 | 13,999,721 | 13,172,777 | +826,944 | 12.11 |
| 2025-08-29 | 13,172,777 | 12,093,175 | +1,079,602 | 12.86 |
| 2025-08-15 | 12,093,175 | 10,092,540 | +2,000,635 | 10.61 |
| 2025-07-31 | 10,092,540 | 9,689,813 | +402,727 | 9.83 |
| 2025-07-15 | 9,689,813 | 8,520,349 | +1,169,464 | 10.20 |
| 2025-06-30 | 8,520,349 | 11,038,334 | -2,517,985 | 4.90 |
| 2025-06-13 | 11,038,334 | 10,981,222 | +57,112 | 1.37 |
Showing 1–24 of 24 settlements