IRM (NYSE: IRM) affiliate sold three blocks of 6,000 shares in 2026

Rhea-AI Filing Summary

IRM notice reports planned or completed sales of company common stock by an affiliate through a broker. The filing lists three sales of 6,000 shares each on 04/01/2026, 05/08/2026, and 06/01/2026, with proceeds of $616,260.00, $767,460.00, and $760,200.00 respectively. The filing also itemizes multiple blocks of restricted stock vesting (examples shown: 2,241 shares vested 02/19/2022, 1,247 shares vested 02/20/2022), recorded under "Restricted Stock Vesting."

Insights

Securities Filings Analyst

Form 144 lists resale notices and recent small-block sales by an affiliate via broker.

Form 144 provides notice of proposed sales under resale restrictions; this excerpt records three completed sales of 6,000 shares each on 04/01/2026, 05/08/2026, and 06/01/2026, with the dollar amounts shown per sale. The broker identified is Fidelity Brokerage Services LLC.

It also lists multiple restricted-stock vesting entries by grant date and quantity (for example, 2,241 and 1,247). These vesting entries document the source of shares but do not by themselves state additional disposition mechanics. Subsequent disclosures or trading reports would show whether further sales occur.

Key Figures

Sale - 04/01/2026: 6,000 shares Sale - 05/08/2026: 6,000 shares Sale - 06/01/2026: 6,000 shares +3 more

6 metrics

Sale - 04/01/2026 6,000 shares <date>04/01/2026</date>, proceeds <money>$616,260.00</money>

Sale - 05/08/2026 6,000 shares <date>05/08/2026</date>, proceeds <money>$767,460.00</money>

Sale - 06/01/2026 6,000 shares <date>06/01/2026</date>, proceeds <money>$760,200.00</money>

Restricted stock vesting example 2,241 shares Vested on <date>02/19/2022</date> (listed under Restricted Stock Vesting)

Restricted stock vesting example 1,247 shares Vested on <date>02/20/2022</date> (listed under Restricted Stock Vesting)

Restricted stock vesting example 485 shares Vested on <date>02/13/2017</date> (listed under Restricted Stock Vesting)

Key Terms

Form 144, Restricted Stock Vesting, Fidelity Brokerage Services LLC

3 terms

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Vesting financial

"Restricted Stock Vesting | Issuer | 2241 | 02/19/2022"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Fidelity Brokerage Services LLC market

"Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917"

FAQ

What does IRM's Form 144 show about recent sales?

The Form 144 reports three sales of 6,000 shares each on 04/01/2026, 05/08/2026, and 06/01/2026 with proceeds of $616,260.00, $767,460.00, and $760,200.00 respectively.

Who executed the trades reported in the IRM Form 144?

Trades were executed through Fidelity Brokerage Services LLC at its Smithfield, RI address, as listed on the filing for the reported transactions and broker details.

Does the filing indicate the source of shares sold for IRM?

The filing lists multiple "Restricted Stock Vesting" entries by grant date and quantity, including blocks such as 2,241 shares vested 02/19/2022, indicating vested restricted shares as the recorded source.

Are the dollar amounts for the sales shown on the IRM filing?

Yes; the filing shows per-trade proceeds: $616,260.00 on 04/01/2026, $767,460.00 on 05/08/2026, and $760,200.00 on 06/01/2026.

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Available on EDGAR 07/01/2026 - 10:38 AM Accepted by SEC EDGAR 07/01/2026 - 10:38 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	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	753720.00	297524681	07/01/2026	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	02/13/2017	Restricted Stock Vesting	Issuer			485	02/13/2017	Compensation
Common	02/19/2017	Restricted Stock Vesting	Issuer			334	02/19/2017	Compensation
Common	02/16/2019	Restricted Stock Vesting	Issuer			398	02/16/2019	Compensation
Common	02/19/2022	Restricted Stock Vesting	Issuer			2241	02/19/2022	Compensation
Common	02/20/2022	Restricted Stock Vesting	Issuer			1247	02/20/2022	Compensation
Common	02/24/2022	Restricted Stock Vesting	Issuer			996	02/24/2022	Compensation
Common	02/19/2023	Restricted Stock Vesting	Issuer			299	02/19/2023	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	04/01/2026	6000	616260.00
Mark Kidd 85 New Hampshire Avenue, Suite 150 Portsmouth NH 03801	Common	05/08/2026	6000	767460.00
Mark Kidd 85 New Hampshire Avenue, Suite 150 Portsmouth NH 03801	Common	06/01/2026	6000	760200.00

144: Remarks and Signature

Remarks
Date of Notice	07/01/2026
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)