William Meaney sells IRM shares (NYSE: IRM) via Form 144 notice

Rhea-AI Filing Summary

William L. Meaney reported proposed sales of common stock in a Form 144 notice. The filing lists multiple sale transactions by Mr. Meaney, including 38,482 shares on 01/02/2026 and 137,133 shares on 03/02/2026. The broker listed is Fidelity Brokerage Services LLC.

Insights

Securities Counsel

Routine Section 144 notice of affiliate share sales; procedural disclosure, not an offer from the issuer.

The Form 144 lists proposed dispositions of common stock by William L. Meaney, with specific transaction entries and a brokerage intermediary, Fidelity Brokerage Services LLC. The filing documents individual sale dates and share counts.

This is a regulatory compliance filing notifying the SEC of intended sales; cash‑flow recipients and aggregate proceeds are shown per transaction rows. Future market activity depends on holder decisions.

FAQ

Who filed the Form 144 for IRM?

The Form 144 was filed for William L. Meaney. The filing records multiple proposed dispositions of common stock with brokerage details listed as Fidelity Brokerage Services LLC.

What sale transactions does the Form 144 list for IRM?

The filing lists several transactions, including 38,482 shares on 01/02/2026 and 38,474 shares on 02/20/2026, with additional entries on March dates and share counts shown per row.

Which broker is named on the IRM Form 144?

The broker identified is Fidelity Brokerage Services LLC, with an address at 900 Salem Street, Smithfield, RI, and a NYSE listing reference in the filing.

Are dollar amounts provided for the IRM transactions?

Yes; the filing shows per‑transaction dollar figures alongside share counts, for example $3,200,601.81 for the 01/02/2026 entry and $15,001,556.50 for 03/02/2026 as reported in the rows.

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Accepted by SEC EDGAR 03/05/2026 - 11:51 AM 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
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 02917	98657	10419165.77	295835206	03/05/2026	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			98657	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	15001556.50
William L. Meaney 85 New Hampshire Avenue Suite 150 Portsmouth NH 03801	Common	03/03/2026	98659	10540534.39
William L. Meaney 85 New Hampshire Avenue, Suite 150 Portsmouth NH 03801	Common	03/04/2026	98659	10592474.23

144: Remarks and Signature

Remarks
Date of Notice	03/05/2026
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/ Jennifer Ruchti, 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)