Phathom Pharmaceuticals, Inc. short interest in 2025
In 2025, Phathom Pharmaceuticals, Inc.'s disclosed short interest ran from 20.77% of shares outstanding on 15 Jan 2025 to 15.15% on 31 Dec 2025, a change of -5.62 percentage points. The year's high was 21.73% on 14 Feb 2025 and its low 12.24% on 30 Jun 2025, averaging 17.75% across 24 twice-monthly settlement dates. FINRA's days-to-cover figure peaked at 16.27 days on 15 Jan 2025. Full history: Phathom Pharmaceuticals, Inc..
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By year: 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026
2025 in figures
- Start of year
- 20.77% (15 Jan 2025)
- End of year
- 15.15% (31 Dec 2025)
- Change
- -5.62 pp
- High
- 21.73% (14 Feb 2025)
- Low
- 12.24% (30 Jun 2025)
- Average
- 17.75%
- Highest days to cover
- 16.27 (15 Jan 2025)
- SEC filings marked
- 8
Every report in 2025
| Settlement | Short interest | Days to cover | Filings since previous |
|---|---|---|---|
| 15 Jan 2025 | 20.77% | 16.27 | |
| 31 Jan 2025 | 21.40% | 13.41 | |
| 14 Feb 2025 | 21.73% | 14.58 | |
| 28 Feb 2025 | 20.36% | 15.09 | |
| 14 Mar 2025 | 20.62% | 9.88 | 10-K filed, results (8-K) |
| 31 Mar 2025 | 18.54% | 10.06 | |
| 15 Apr 2025 | 16.35% | 8.37 | |
| 30 Apr 2025 | 15.68% | 10.89 | |
| 15 May 2025 | 16.05% | 3.18 | 10-Q filed, results (8-K) |
| 30 May 2025 | 15.77% | 9.97 | |
| 13 Jun 2025 | 15.85% | 1.37 | |
| 30 Jun 2025 | 12.24% | 4.90 | |
| 15 Jul 2025 | 13.91% | 10.20 | |
| 31 Jul 2025 | 14.49% | 9.83 | |
| 15 Aug 2025 | 17.05% | 10.61 | 10-Q filed, results (8-K) |
| 29 Aug 2025 | 18.57% | 12.86 | |
| 15 Sep 2025 | 19.73% | 12.11 | |
| 30 Sep 2025 | 18.60% | 10.71 | |
| 15 Oct 2025 | 19.91% | 9.27 | |
| 31 Oct 2025 | 19.07% | 13.59 | 10-Q filed, results (8-K) |
| 14 Nov 2025 | 18.39% | 14.33 | |
| 28 Nov 2025 | 17.91% | 16.13 | |
| 15 Dec 2025 | 17.82% | 15.98 | |
| 31 Dec 2025 | 15.15% | 10.51 |
See also: Phathom Pharmaceuticals, Inc.'s full history · most shorted US stocks of 2025 · today's US league.
About this data
US short interest data: FINRA (finra.org), shown as reported shares short divided by SEC-reported shares outstanding for each settlement date. FINRA® is a registered trademark of the Financial Industry Regulatory Authority, Inc. This site is not affiliated with or endorsed by FINRA or the SEC; displayed for personal reference, bulk redistribution is not permitted (see terms). Nothing here is investment advice. Method: methodology.