Iron Mountain Inc SEC filings IRM
Iron Mountain Inc has 1,012 filings in SEC EDGAR's recent list, going back to Feb 20, 2019. Its latest annual report, Form ARS, was filed on Mar 24, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 5, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| S-8 | Employee stock plan registration | Dec 15, 2025 | — |
| S-8 | Employee stock plan registration | Aug 9, 2021 | — |
| S-8 | Employee stock plan registration | Aug 9, 2021 | — |
Showing 3 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Real Estate Investment Trusts (SIC 6798)
- Listed as
- IRM (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Portsmouth, NH
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1020569
- Former names
- IRON MOUNTAIN INC/PA (until Jun 9, 2005); PIERCE LEAHY CORP (until Feb 16, 1999)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.