Daniel Borges - 16 Feb 2026 Form 4 Insider Report for IRON MOUNTAIN INC (IRM)

Reporting relationship: SVP & Chief Accounting Officer
Issuer ticker: IRM
Reported as of: 16 Feb 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 18 Feb 2026, 17:20:55 UTC
Prior SEC filing: 04 Mar 2025
Next SEC filing: 03 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Christine Zhang, under Power of Attorney dated June 19, 2025 from Daniel Borges

Key filing fact

Daniel Borges filed Form 4 for IRON MOUNTAIN INC (IRM) on 18 Feb 2026.

Key facts

This page summarizes Daniel Borges's Form 4 filing for IRON MOUNTAIN INC (IRM).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 18 Feb 2026, 17:20.

Change

Previous filing in this sequence was filed on 04 Mar 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001720656 Primary reporting owner

Borges Daniel

Relationship: SVP & Chief Accounting Officer
Address: C/O IRON MOUNTAIN INCORPORATED, 85 NEW HAMPSHIRE AVENUE, SUITE 150, PORTSMOUTH
Signature: /s/ Christine Zhang, under Power of Attorney dated June 19, 2025 from Daniel Borges
Signature date: 18 Feb 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

IRM transaction Derivative

Performance Units

Award

Transaction value: $0
Shares: +6,537
Change %: +250%
Price: $0.000000
Shares after: 9,152
Date: 16 Feb 2026
Ownership: Direct
Underlying class: Common Stock, par value $.01 per share
Underlying amount: 6,537
Exercise price
Footnotes: F1, F2, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Each Performance Unit ("PU") represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

Footnote F2

The PUs were initially granted to the Reporting Person on March 1, 2023. This Form 4 is being filed to reflect the determination by the Compensation Committee, effective as of February 16, 2026, of the actual award of PUs under the grant after completion of the relevant performance period.

Footnote F3

The PU were initially granted to the Reporting Person on March 1, 2023, and will fully vest on March 1, 2026.