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
ARS Annual report to shareholders Mar 24, 2026 Dec 31, 2025
10-K Annual report Feb 12, 2026 Dec 31, 2025
ARS Annual report to shareholders Apr 18, 2025 Dec 31, 2024
10-K Annual report Feb 14, 2025 Dec 31, 2024
ARS Annual report to shareholders Apr 19, 2024 Dec 31, 2023
10-K Annual report Feb 22, 2024 Dec 31, 2023
ARS Annual report to shareholders Mar 30, 2023 Dec 31, 2022
10-K Annual report Feb 23, 2023 Dec 31, 2022
10-K Annual report Feb 24, 2022 Dec 31, 2021
10-K Annual report Feb 24, 2021 Dec 31, 2020
10-K Annual report Feb 13, 2020 Dec 31, 2019

Showing 11 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.

New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.

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.