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Iron Mountain Inc. (IRM)

NYSE: IRM · Real Estate Investment Trusts · Portsmouth, NH · filing with the SEC since 1996
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◀ Past 6.1● Present 5.0▶ Future 4.6
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Filings

247 filings since 2017 beside 1,049 insider forms · Large accelerated filer · read from EDGAR on Nov 13, 2026
Due nextLarge accelerated filer
10-K Annual report for the fiscal year ending Dec 31, 2026Large accelerated filers have 60 days after the fiscal year ends. by Mar 1, 2027
10-Q Quarterly report for the quarter ending Mar 31, 2027Large accelerated filers have 40 days after the quarter ends; quarter ends are taken to the month end. by May 10, 2027

A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 36 days after the quarter ended. The proxy statement was last filed Mar 24, 2026.

Filings a yearinsider forms included
129108123105150180128119
20192020202120222023202420252026

2026 counts to Nov 13, 2026.

Officer or director change (8-K item 5.02): 5 times in the last 36 months, the newest Oct 21, 2025.SEC letters: 3 in the last 36 months, the newest Apr 8, 2025.
Insider forms 1,049

Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.

FiledFormWhat it is, in plain wordsPeriodAsk
Nov 5, 2026 10-Q Quarterly report Sep 30, 2026
Nov 5, 2026 8-K items 2.02, 9.01 Results released · Current report
Aug 5, 2026 10-Q Quarterly report Jun 30, 2026
Aug 5, 2026 8-K items 2.02, 9.01 Results released · Current report
Jun 26, 2026 8-K items 1.01, 2.03, 9.01 Major agreement signed; New debt or obligation taken on · Current report
May 12, 2026 8-K items 5.07, 8.01, 9.01 Shareholder vote; Other event · Current report May 7, 2026
May 7, 2026 SCHEDULE 13G/A Large holder update, amended
Apr 30, 2026 SCHEDULE 13G Large holder notice
Apr 30, 2026 10-Q Quarterly report Mar 31, 2026
Apr 30, 2026 8-K items 2.02, 9.01 Results released · Current report
Apr 29, 2026 SCHEDULE 13G Large holder notice
Mar 27, 2026 SCHEDULE 13G/A Large holder update, amended
Mar 24, 2026 DEFA14A Extra proxy material
Mar 24, 2026 DEF 14A Proxy statement Dec 31, 2025
Mar 24, 2026 ARS Annual report to shareholders Dec 31, 2025
Mar 9, 2026 8-K items 8.01, 9.01 Other event · Current report
Feb 13, 2026 SCHEDULE 13G/A Large holder update, amended
Feb 12, 2026 10-K Annual report Dec 31, 2025
Feb 12, 2026 8-K items 2.02, 9.01 Results released · Current report
Dec 15, 2025 S-8 Employee stock plan registration
Nov 14, 2025 SCHEDULE 13G Large holder notice
Nov 13, 2025 8-K items 1.01, 2.03, 9.01 Major agreement signed; New debt or obligation taken on · Current report
Nov 5, 2025 10-Q Quarterly report Sep 30, 2025
Nov 5, 2025 8-K items 2.02, 9.01 Results released · Current report
Oct 21, 2025 8-K items 5.02, 9.01 Officer or director change · Current report
Sep 10, 2025 8-K items 1.01, 2.03, 9.01 Major agreement signed; New debt or obligation taken on · Current report
Aug 6, 2025 10-Q Quarterly report Jun 30, 2025
Aug 6, 2025 8-K items 2.02, 9.01 Results released · Current report
Jun 20, 2025 8-K items 1.01, 2.03, 9.01 Major agreement signed; New debt or obligation taken on · Current report Jun 18, 2025
Jun 4, 2025 8-K items 5.02, 5.07, 8.01, 9.01 Officer or director change; Shareholder vote; Other event · Current report May 29, 2025
May 5, 2025 DEFR14A Revised proxy statement
May 1, 2025 10-Q Quarterly report Mar 31, 2025
May 1, 2025 8-K items 2.02, 9.01 Results released · Current report
Apr 18, 2025 ARS Annual report to shareholders Dec 31, 2024
Apr 18, 2025 DEFA14A Extra proxy material
Apr 18, 2025 DEF 14A Proxy statement May 29, 2025
Apr 8, 2025 UPLOAD SEC comment letter
Apr 2, 2025 CORRESP Reply to the SEC
Mar 25, 2025 UPLOAD SEC comment letter
Mar 7, 2025 SCHEDULE 13G/A Large holder update, amended
40 of 247 shown

Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.

SI Assistanton IRM · research, not advice