IRM affiliate files Form 144 to sell 98,659 shares

IRM affiliate filed a Form 144 reporting the proposed sale of 98,659 common shares.

Rhea-AI Filing Summary

IRM affiliate filed a Form 144 reporting the proposed sale of 98,659 common shares. The notice cites these shares as resulting from 03/01/2026 restricted stock vesting tied to compensation. The filing also lists prior dispositions by the same affiliate totaling 314,748 common shares sold on 01/02/2026, 02/20/2026, 03/02/2026, and 03/03/2026.

Insights

Corporate Governance Analyst

Form 144 discloses an affiliate sale following restricted stock vesting.

The filing reports a proposed sale of 98,659 common shares from restricted stock vesting on 03/01/2026, with prior reported dispositions of 38,482, 38,474, 137,133, and 98,659 shares on the listed dates.

Execution timing and sales method are not detailed in the excerpt; subsequent SEC filings or broker reports may show actual transactions and proceeds when executed.

FAQ

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

What does IRM's Form 144 showing 98,659 shares mean?

It notifies regulators of a proposed sale of 98,659 common shares tied to restricted stock vesting on 03/01/2026. The filing is a regulatory notice, not proof the sale has executed.

Who is the reporting party on the IRM Form 144?

The excerpt lists Fidelity Brokerage Services LLC and transactions by William L. Meaney at the provided address. The filing attributes the proposed sale and prior dispositions to that reporting arrangement.

How many IRM shares were sold in the past three months per this filing?

The filing lists prior dispositions of 38,482 (01/02/2026), 38,474 (02/20/2026), 137,133 (03/02/2026), and 98,659 (03/03/2026), totaling 312,748 shares in the excerpt.

Are the proceeds or sale methods disclosed in the IRM Form 144 excerpt?

The provided excerpt does not state proceeds or specific sale methods. It identifies the shares and dates but does not disclose pricing, proceeds, or execution details for the proposed sale.

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

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Accepted by SEC EDGAR 03/04/2026 - 12:45 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	0001566391
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	Meaney William L
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	Officer

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 02917	98659	10629520.66	295835206	03/04/2026	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	03/01/2026	Restricted Stock Vesting	Issuer			98659	03/01/2026	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
William L. Meaney 85 New Hampshire Avenue Suite 150 Portsmouth NH 03801	Common	01/02/2026	38482	3200601.81
William L. Meaney 85 New Hampshire Avenue Suite 150 Portsmouth NH 03801	Common	02/20/2026	38474	4161732.58
William L. Meaney 85 New Hampshire Avenue Suite 150 Portsmouth NH 03801	Common	03/02/2026	137133	14710256.91
William L. Meaney 85 New Hampshire Avenue Suite 150 Portsmouth NH 03801	Common	03/03/2026	98659	10615708.40

144: Remarks and Signature

Remarks
Date of Notice	03/04/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/13/2025
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/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for William L. Meaney
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)