aTyr Pharma, Inc. short interest in 2025
In 2025, aTyr Pharma, Inc.'s disclosed short interest ran from 4.19% of shares outstanding on 15 Jan 2025 to 25.53% on 31 Dec 2025, a change of +21.34 percentage points. The year's high was 38.71% on 30 Sep 2025 and its low 4.19% on 15 Jan 2025, averaging 20.70% across 24 twice-monthly settlement dates. FINRA's days-to-cover figure peaked at 15.47 days on 15 Dec 2025. Full history: aTyr Pharma, Inc..
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By year: 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026
2025 in figures
- Start of year
- 4.19% (15 Jan 2025)
- End of year
- 25.53% (31 Dec 2025)
- Change
- +21.34 pp
- High
- 38.71% (30 Sep 2025)
- Low
- 4.19% (15 Jan 2025)
- Average
- 20.70%
- Highest days to cover
- 15.47 (15 Dec 2025)
- SEC filings marked
- 7
Every report in 2025
| Settlement | Short interest | Days to cover | Filings since previous |
|---|---|---|---|
| 15 Jan 2025 | 4.19% | 3.55 | |
| 31 Jan 2025 | 4.55% | 5.95 | |
| 14 Feb 2025 | 5.19% | 5.32 | |
| 28 Feb 2025 | 6.27% | 2.58 | |
| 14 Mar 2025 | 7.79% | 3.31 | 10-K filed, results (8-K) |
| 31 Mar 2025 | 9.37% | 6.35 | |
| 15 Apr 2025 | 11.28% | 6.64 | |
| 30 Apr 2025 | 13.16% | 10.96 | |
| 15 May 2025 | 14.27% | 10.42 | 10-Q filed, results (8-K) |
| 30 May 2025 | 15.50% | 8.24 | |
| 13 Jun 2025 | 15.36% | 4.65 | |
| 30 Jun 2025 | 20.78% | 4.40 | |
| 15 Jul 2025 | 22.94% | 5.82 | |
| 31 Jul 2025 | 28.81% | 3.42 | |
| 15 Aug 2025 | 28.83% | 7.17 | 10-Q filed |
| 29 Aug 2025 | 30.01% | 8.04 | |
| 15 Sep 2025 | 33.77% | 1.58 | |
| 30 Sep 2025 | 38.71% | 1.80 | |
| 15 Oct 2025 | 36.89% | 3.39 | |
| 31 Oct 2025 | 31.70% | 6.08 | |
| 14 Nov 2025 | 30.48% | 7.62 | 10-Q filed, results (8-K) |
| 28 Nov 2025 | 30.41% | 9.24 | |
| 15 Dec 2025 | 31.01% | 15.47 | |
| 31 Dec 2025 | 25.53% | 11.13 |
See also: aTyr Pharma, 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.