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Filing Details

Accession Number:: 0001020569-25-000066
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2025-03-04 21:27:00
Reporting Period:: 2025-03-01

Filing Date:: 2025-03-04
Accepted Time:: 2025-03-04 21:27:00
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1020569	Iron Mountain Inc	IRM	Real Estate Investment Trusts (6798)	232588479

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1566391	L William Meaney	C/O Iron Mountain Incorporated 85 New Hampshire Avenue, Suite 150 Portsmouth NH 03801	President And Ceo	Yes	Yes	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock, Par Value $.01 Per Share	Acquisiton	2025-03-01	554,911	$0.00	554,911	No	4	M	Direct
Common Stock, Par Value $.01 Per Share	Disposition	2025-03-01	218,357	$93.17	336,554	No	4	F	Direct
Common Stock, Par Value $.01 Per Share	Acquisiton	2025-03-01	7,047	$0.00	343,601	No	4	M	Direct
Common Stock, Par Value $.01 Per Share	Disposition	2025-03-01	2,772	$93.17	340,829	No	4	F	Direct
Common Stock, Par Value $.01 Per Share	Acquisiton	2025-03-03	69,125	$36.59	409,954	No	4	M	Direct
Common Stock, Par Value $.01 Per Share	Disposition	2025-03-03	48,952	$90.28	361,002	No	4	S	Direct
Common Stock, Par Value $.01 Per Share	Disposition	2025-03-03	92,552	$91.60	268,450	No	4	S	Direct
Common Stock, Par Value $.01 Per Share	Disposition	2025-03-03	26,773	$92.30	241,677	No	4	S	Direct
Common Stock, Par Value $.01 Per Share	Disposition	2025-03-03	1,120	$90.33	240,557	No	4	S	Direct
Common Stock, Par Value $.01 Per Share	Disposition	2025-03-03	2,932	$91.73	237,625	No	4	S	Direct
Common Stock, Par Value $.01 Per Share	Disposition	2025-03-03	223	$92.54	237,402	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	F	Direct
No	4	M	Direct
No	4	F	Direct
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock, Par Value $.01 Per Share	Performance Units	Disposition	2025-03-01	554,911	$0.00	554,911	$0.00
Common Stock, Par Value $.01 Per Share	Restricted Stock Units	Disposition	2025-03-01	7,047	$0.00	7,047	$0.00
Common Stock, Par Value $.01 Per Share	Employee Stock Option (Right to Buy)	Disposition	2025-03-03	69,125	$36.59	69,125	$36.59
Common Stock, Par Value $.01 Per Share	Employee Stock Option (Right to Buy)	Acquisiton	2025-03-01	83,389	$93.17	83,389	$93.17

Remaning Holdings	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0		No	4	M	Direct
0		No	4	M	Direct
622,125	2026-02-18	No	4	M	Direct
83,389		No	4	A	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock, Par Value $.01 Per Share	295,650	Indirect	By GRAT

Footnotes

This acquisition is reported to reflect the full vesting of performance units ("PUs") previously granted to the Reporting Person on March 1, 2022. Effective February 14, 2025, the Compensation Committee of Iron Mountain Incorporated's Board of Directors determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2025.
This acquisition is reported to reflect the full vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on March 1, 2022.
The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated common stock ("Common Stock") were sold in multiple transactions at prices ranging from $90.020 to $91.015, inclusive. The Reporting Person undertakes to provide Iron Mountain Incorporated (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (3).
The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated common stock ("Common Stock") were sold in multiple transactions at prices ranging from $91.030 to $92.025, inclusive. The Reporting Person undertakes to provide Iron Mountain Incorporated (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (4).
The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated common stock ("Common Stock") were sold in multiple transactions at prices ranging from $92.030 to $92.910, inclusive. The Reporting Person undertakes to provide Iron Mountain Incorporated (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (5).
The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated common stock ("Common Stock") were sold in multiple transactions at prices ranging from $90.110to $90.630, inclusive. The Reporting Person undertakes to provide Iron Mountain Incorporated (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (6).
The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated common stock ("Common Stock") were sold in multiple transactions at prices ranging from $91.270 to $92.260, inclusive. The Reporting Person undertakes to provide Iron Mountain Incorporated (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (7).
The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated common stock ("Common Stock") were sold in multiple transactions at prices ranging from $92.350 to $92.755, inclusive. The Reporting Person undertakes to provide Iron Mountain Incorporated (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (8).
Balance reflects 295,650 shares transferred from the Grantor for funding of a Grantor Retained Annuity Trust on November 29, 2024. This transfer is exempt from Section 16 pursuant to Rule 16a-13.
Each PU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").
The PU were initially granted to the Reporting Person on March 1, 2022, and will fully vest on March 1, 2025.
Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").
The RSUs, representing a contingent right to receive a total of 21,139 shares of Common Stock, were granted to the Reporting Person on March 1, 2022 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.
This stock option becomes exercisable in three substantially equal annual installments beginning on the first anniversary of the date of grant.