IRM files Form 144 to sell 7,000 common shares

IRM filed a Form 144 reporting the proposed sale of 7,000 common shares.

Rhea-AI Filing Summary

IRM filed a Form 144 reporting the proposed sale of 7,000 common shares. The filing lists the shares as resulting from restricted stock vesting, including 5,312 shares vested on 05/13/2020 and 1,688 shares vested on 05/12/2021.

The notice identifies Fidelity Brokerage Services LLC and a transaction date of 03/02/2026 on the NYSE; the filing format indicates these shares are being reported for sale under Rule 144.

Insights

Securities Compliance Counsel

Form 144 reports a Rule 144 sale notice for 7,000 vested common shares.

The filing lists 7,000 common shares as the amount to be sold and ties the shares to two restricted stock vesting events: 5,312 shares vested on 05/13/2020 and 1,688 shares vested on 05/12/2021. The broker is named as Fidelity Brokerage Services LLC.

Execution timing and proceeds treatment are not detailed in the excerpt; subsequent Form 4 or settlement reports may disclose actual sales and cash‑flow outcomes.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does IRM's Form 144 report?

The filing reports a proposed sale of 7,000 common shares under Rule 144. It lists the shares as arising from restricted stock vesting on 05/13/2020 and 05/12/2021.

Who is the broker named in the IRM Form 144?

The broker listed is Fidelity Brokerage Services LLC. The filing shows a transaction-related date of 03/02/2026 on the NYSE in the excerpt provided.

How many shares vested and when, per the filing?

The excerpt shows 5,312 shares vested on 05/13/2020 and 1,688 shares vested on 05/12/2021, which together correspond to the 7,000 shares reported for sale.

Does the Form 144 state proceeds or sale completion?

The provided excerpt does not state sale proceeds or confirm completion. It reports the 7,000-share Rule 144 notice; settlement details would appear in subsequent transaction filings if executed.

Is this Form 144 an unusual filing for IRM?

This is a routine Rule 144 notice reporting the intended sale of vested restricted shares. The excerpt lists vesting events and broker details but does not indicate unusual or exceptional terms.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/02/2026 - 03:07 PM EST Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001618762
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	IRON MOUNTAIN INC
SEC File Number	001-13045
Address of Issuer	85 NEW HAMPSHIRE AVENUE, SUITE 150 PEASE INTERNATIONAL TRADEPORT PORTSMOUTH NEW HAMPSHIRE 03801
Phone	617-535-4781
Name of Person for Whose Account the Securities are To Be Sold	Allerton Jennifer
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI NYSE	7000	762159.67	295835206	03/02/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	05/13/2020	Restricted Stock Vesting	Issuer			5312	05/13/2020	Compensation
Common	05/12/2021	Restricted Stock Vesting	Issuer			1688	05/12/2021	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	03/02/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Audrey McMillen, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jennifer Allerton
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)