Iron Mountain Inc. short interest in 2025
In 2025, Iron Mountain Inc.'s disclosed short interest ran from 2.78% of shares outstanding on 15 Jan 2025 to 3.26% on 31 Dec 2025, a change of +0.48 percentage points. The year's high was 3.85% on 15 May 2025 and its low 2.37% on 31 Jul 2025, averaging 3.04% across 24 twice-monthly settlement dates. FINRA's days-to-cover figure peaked at 8.39 days on 29 Aug 2025. Full history: Iron Mountain Inc..
Cite this page
By year: 2018 · 2019 · 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026
2025 in figures
- Start of year
- 2.78% (15 Jan 2025)
- End of year
- 3.26% (31 Dec 2025)
- Change
- +0.48 pp
- High
- 3.85% (15 May 2025)
- Low
- 2.37% (31 Jul 2025)
- Average
- 3.04%
- Highest days to cover
- 8.39 (29 Aug 2025)
- SEC filings marked
- 8
Every report in 2025
| Settlement | Short interest | Days to cover | Filings since previous |
|---|---|---|---|
| 15 Jan 2025 | 2.78% | 4.11 | |
| 31 Jan 2025 | 2.74% | 4.13 | |
| 14 Feb 2025 | 2.96% | 4.54 | results (8-K), 10-K filed |
| 28 Feb 2025 | 3.07% | 3.25 | |
| 14 Mar 2025 | 2.94% | 3.20 | |
| 31 Mar 2025 | 3.29% | 5.41 | |
| 15 Apr 2025 | 3.21% | 4.04 | |
| 30 Apr 2025 | 3.48% | 6.93 | |
| 15 May 2025 | 3.85% | 6.99 | 10-Q filed, results (8-K) |
| 30 May 2025 | 3.20% | 5.77 | |
| 13 Jun 2025 | 3.55% | 7.67 | |
| 30 Jun 2025 | 2.70% | 3.65 | |
| 15 Jul 2025 | 2.52% | 5.47 | |
| 31 Jul 2025 | 2.37% | 7.68 | |
| 15 Aug 2025 | 2.85% | 4.33 | 10-Q filed, results (8-K) |
| 29 Aug 2025 | 2.93% | 8.39 | |
| 15 Sep 2025 | 2.94% | 5.30 | |
| 30 Sep 2025 | 2.73% | 4.80 | |
| 15 Oct 2025 | 2.52% | 5.29 | |
| 31 Oct 2025 | 2.60% | 7.77 | |
| 14 Nov 2025 | 3.35% | 4.40 | 10-Q filed, results (8-K) |
| 28 Nov 2025 | 3.35% | 3.16 | |
| 15 Dec 2025 | 3.69% | 5.64 | |
| 31 Dec 2025 | 3.26% | 4.55 |
See also: Iron Mountain 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.