IRM Form 144: Insider sell notice for 6,000 shares

IRM insiders reported sell notices for 6,000 common shares.

Rhea-AI Filing Summary

IRM insiders reported sell notices for 6,000 common shares. The Form 144 entries list a 6,000-share sale notice tied to restricted stock vesting and two prior reported transactions: 12/01/2025 sale of 6,000 shares for $510,000 and 01/02/2026 sale of 6,000 shares for $498,600. The filing also shows 295,835,206 shares outstanding as of 02/20/2026.

Insights

Insider Transactions Analyst

Routine insider sale notices for 6,000 shares; prior small-dollar sales recorded.

Form 144 entries indicate a proposed sale associated with restricted stock vesting and two completed or reported dispositions totaling 12,000 shares on 12/01/2025 and 01/02/2026 with gross amounts of $510,000 and $498,600.

These amounts represent a small fraction of the reported 295,835,206 shares outstanding as of 02/20/2026; cash‑flow treatment and buyer identities are not specified in the excerpt.

FAQ

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

What did the IRM Form 144 disclose about insider sales?

The filing shows a 6,000-share sale notice linked to restricted stock vesting. It also lists prior reported dispositions of 6,000 shares on 12/01/2025 and 6,000 shares on 01/02/2026 with gross proceeds shown.

How much did the prior Mark Kidd transactions gross according to the filing?

The excerpt shows gross proceeds of $510,000 for the 12/01/2025 sale and $498,600 for the 01/02/2026 sale. These figures are presented next to the respective 6,000-share entries.

Who is the broker or agent named in the Form 144 for the sale?

The filing lists Fidelity Brokerage Services LLC at 900 Salem Street, Smithfield, RI, alongside a 6,000-share entry. The excerpt pairs the broker name with the common share quantity.

What is the company share count shown in the excerpt?

The excerpt states 295,835,206 shares outstanding as of 02/20/2026. That number appears in the securities/issuer information line of the filing.

Is the planned sale tied to compensation or vesting?

Yes; one line describes the 6,000 common shares as related to Restricted Stock Vesting and labels the source as Issuer and purpose as Compensation.

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

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Accepted by SEC EDGAR 02/20/2026 - 09:56 AM 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	0001732058
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	Kidd Mark
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	6000	649020.00	295835206	02/20/2026	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	03/01/2024	Restricted Stock Vesting	Issuer			6000	03/01/2024	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
Mark Kidd 85 New Hampshire Avenue Suite 150 Portsmouth NH 03801	Common	12/01/2025	6000	510000.00
Mark Kidd 85 New Hampshire Avenue Suite 150 Portsmouth NH 03801	Common	01/02/2026	6000	498600.00

144: Remarks and Signature

Remarks
Date of Notice	02/20/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/20/2025
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 Mark Kidd
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)