Director’s trust gifts 1,600 Iron Mountain (IRM) shares in Form 4

Rhea-AI Filing Summary

IRON MOUNTAIN INC director Walter C. Rakowich, through the Rakowich Living Trust, reported a bona fide gift of 1,600 shares of Iron Mountain common stock on May 1, 2026. The shares were transferred at a reported price of $0.00 per share, consistent with a gift transaction.

After this disposition, the Rakowich Living Trust, for which he is the sole trustee, continues to hold 23,865 shares indirectly. This filing reflects a non-market, charitable or personal transfer rather than an open-market sale or purchase.

Insider Trade Summary

1,600 shares gifted

Mixed 1 txn

Insider RAKOWICH WALTER C

Role null

Type	Security	Shares	Price	Value
Gift	Common Stock, par value $.01 per share	1,600	$0.00	--

Holdings After Transaction: Common Stock, par value $.01 per share — 23,865 shares (Indirect, By Rakowich Living Trust)

Footnotes (1)

1. [object Object]

Key Figures

Shares gifted: 1,600 shares Gift price: $0.00 per share Shares held after transaction: 23,865 shares +2 more

5 metrics

Shares gifted 1,600 shares Bona fide gift of common stock on May 1, 2026

Gift price $0.00 per share Reported transaction price for the gift

Shares held after transaction 23,865 shares Indirectly held by Rakowich Living Trust after gift

Transaction direction Dispose (gift transfer) Form 4 transaction_direction and transaction_action

Ownership type Indirect Held by Rakowich Living Trust with Walter C. Rakowich as sole trustee

Key Terms

bona fide gift, Rakowich Living Trust, indirect ownership, Common Stock, par value $.01 per share

4 terms

bona fide gift financial

"transaction_code_description: "Bona fide gift" for the 1,600-share transfer"

A bona fide gift is a genuine, voluntary transfer of money, property, or benefits from one party to another made without expectation of repayment, services, or hidden conditions. Investors care because such gifts can affect company disclosures, related‑party transaction rules, tax treatment, and perceived conflicts of interest; think of it like someone giving you a present with no strings attached — but on a corporate scale, auditors and regulators need to verify it really is unconditional.

Rakowich Living Trust financial

"nature_of_ownership: "By Rakowich Living Trust" and footnote describing holdings"

indirect ownership financial

"direct_or_indirect: "I" and ownership_type: "indirect" for the trust-held shares"

Common Stock, par value $.01 per share financial

"security_title: "Common Stock, par value $.01 per share""

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

RAKOWICH WALTER C

(Last) (First) (Middle)

C/O IRON MOUNTAIN INCORPORATED

85 NEW HAMPSHIRE AVENUE, SUITE 150

(Street)

PORTSMOUTH NEW HAMPSHIRE 03801

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
IRON MOUNTAIN INC [ IRM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, par value $.01 per share	05/01/2026		G		1,600	D	$0	23,865	I	By Rakowich Living Trust(1)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Shares held of record by Rakowich Living Trust. The reporting person is the sole trustee.

Remarks:

	/s/ Keely Stewart, under Power of Attorney dated April 17, 2023, from Walter C. Rakowich	05/05/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did IRON MOUNTAIN INC (IRM) director Walter C. Rakowich report in this Form 4?

He reported a bona fide gift of 1,600 shares of Iron Mountain common stock on May 1, 2026. The transaction reflects a non-market transfer at $0.00 per share, rather than an open-market sale or purchase.

How many IRON MOUNTAIN INC (IRM) shares did Walter C. Rakowich’s trust hold after the gift?

Following the gift, the Rakowich Living Trust held 23,865 shares of Iron Mountain common stock indirectly. This post-transaction balance shows that the gifted amount is a portion of the trust’s overall holdings, not a full disposition.

Was the IRON MOUNTAIN INC (IRM) Form 4 transaction an open-market sale or purchase?

No. The Form 4 describes the transaction as a G code bona fide gift with a reported price of $0.00 per share. This indicates a personal or charitable transfer, not an open-market trade that would involve a purchase or sale price.

Who holds the IRON MOUNTAIN INC (IRM) shares involved in this Form 4 filing?

The shares are held by the Rakowich Living Trust, recorded as an indirect ownership. A footnote states that Walter C. Rakowich is the sole trustee, meaning he oversees the trust’s holdings for reporting purposes.

What does the transaction code "G" mean in the IRON MOUNTAIN INC (IRM) Form 4?

Transaction code "G" on Form 4 signifies a bona fide gift of securities. In this case, it covers the transfer of 1,600 Iron Mountain shares at a reported $0.00 per share, distinguishing it from a market sale or purchase.