SEC INSIDER TRANSACTIONS

IRON MOUNTAIN INC (IRM) Insider Transactions

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IRM · IRON MOUNTAIN INC

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Roles: director,officer,ten_percent_owner,otherOwner nameOfficer titleOwnership: D, I, unknownoriginal or amendedTransaction fromTransaction throughFiled fromFiled throughMinimum quantityMaximum quantityMinimum priceMaximum priceMinimum calculated valueMaximum calculated valueResults per page (1–100)

OR within codes/roles; AND between categories. Roles apply to buyers and sellers. Owner predicates match the same owner. Missing values fail numeric/date filters. Value is quantity × reported price for non-derivative rows only; derivative values are unknown. Amendments stay separate; joint owners do not duplicate rows.

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Stale snapshot · Covered: filings 2026-05-14 to 2026-11-13 · 22 filings · fetched 2026-11-13T18:20:04Z

Recent reported activity

0purchase rows on this page

16sale rows on this page

55matching filing rows

Purchases and sales count original non-derivative P and S rows. Awards, gifts, exercises, derivatives and amendments are shown separately and are not described as market purchases.

Transaction / filed	Reporting owner(s)	Code / security	Quantity	Price as filed	Ownership	Source
2026-11-06Filed 2026-11-09	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $103.44 to $104.42, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $104.47 to $105.46, inclusive. The Reporting Person undertakes to provide 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). F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $105.47 to $106.46, inclusive. The Reporting Person undertakes to provide 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). F5 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $106.47 to $107.38, inclusive. The Reporting Person undertakes to provide 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). F6 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F7 Not applicable. References: F1, F7, F6	M Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative	38,474D	—	Direct	Form 4 ↗0001566391-26-000028
2026-11-06Filed 2026-11-09	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $103.44 to $104.42, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $104.47 to $105.46, inclusive. The Reporting Person undertakes to provide 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). F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $105.47 to $106.46, inclusive. The Reporting Person undertakes to provide 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). F5 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $106.47 to $107.38, inclusive. The Reporting Person undertakes to provide 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). F6 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F7 Not applicable. References: F1, F5	S Sale (market/private)Common Stock, par value $.01 per share · Non-derivative	4,327D	106.62	Direct	Form 4 ↗0001566391-26-000028
2026-11-06Filed 2026-11-09	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $103.44 to $104.42, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $104.47 to $105.46, inclusive. The Reporting Person undertakes to provide 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). F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $105.47 to $106.46, inclusive. The Reporting Person undertakes to provide 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). F5 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $106.47 to $107.38, inclusive. The Reporting Person undertakes to provide 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). F6 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F7 Not applicable. References: F1, F4	S Sale (market/private)Common Stock, par value $.01 per share · Non-derivative	24,270D	105.93	Direct	Form 4 ↗0001566391-26-000028
2026-11-06Filed 2026-11-09	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $103.44 to $104.42, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $104.47 to $105.46, inclusive. The Reporting Person undertakes to provide 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). F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $105.47 to $106.46, inclusive. The Reporting Person undertakes to provide 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). F5 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $106.47 to $107.38, inclusive. The Reporting Person undertakes to provide 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). F6 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F7 Not applicable. References: F1, F3	S Sale (market/private)Common Stock, par value $.01 per share · Non-derivative	7,413D	105.03	Direct	Form 4 ↗0001566391-26-000028
2026-11-06Filed 2026-11-09	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $103.44 to $104.42, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $104.47 to $105.46, inclusive. The Reporting Person undertakes to provide 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). F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $105.47 to $106.46, inclusive. The Reporting Person undertakes to provide 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). F5 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $106.47 to $107.38, inclusive. The Reporting Person undertakes to provide 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). F6 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F7 Not applicable. References: F1, F2	S Sale (market/private)Common Stock, par value $.01 per share · Non-derivative	2,464D	104.08	Direct	Form 4 ↗0001566391-26-000028
2026-11-06Filed 2026-11-09	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $103.44 to $104.42, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $104.47 to $105.46, inclusive. The Reporting Person undertakes to provide 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). F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $105.47 to $106.46, inclusive. The Reporting Person undertakes to provide 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). F5 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $106.47 to $107.38, inclusive. The Reporting Person undertakes to provide 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). F6 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F7 Not applicable. References: F1	M Exercise / conversionCommon Stock, par value $.01 per share · Non-derivative	38,474A	37	Direct	Form 4 ↗0001566391-26-000028
2026-11-02Filed 2026-11-03	McIntosh Greg WOfficer · EVP, Chief Commercial Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 8, 2026. References: F1	S Sale (market/private)Common Stock, par value $.01 per share · Non-derivative	5,000D	116.96	Direct	Form 4 ↗0001769841-26-000013
2026-10-06Filed 2026-10-08	Samuels Theodore R. IIDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F2 These shares give effect to the Reporting Person's quarterly cash compensation for services on the board of directors of the Company as if reinvested in Phantom Shares. References: F1, F2	A Award / grantPhantom Stock · Derivative	310.49A	116.75	Direct	Form 4 ↗0001020569-26-000077
2026-10-02Filed 2026-10-05	Simons DoyleDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F2 These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares. References: F1, F2	A Award / grantPhantom Stock · Derivative	350.49A	113.92	Direct	Form 4 ↗0001020569-26-000075
2026-10-02Filed 2026-10-05	Samuels Theodore R. IIDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F2 These shares give effect to the Reporting Person's quarterly cash compensation for services on the board of directors of the Company as if reinvested in Phantom Shares. References: F1, F2	A Award / grantPhantom Stock · Derivative	104.67A	113.92	Direct	Form 4 ↗0001020569-26-000073
2026-10-01Filed 2026-10-05	McIntosh Greg WOfficer · EVP, Chief Commercial Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 8, 2026. References: F1	S Sale (market/private)Common Stock, par value $.01 per share · Non-derivative	5,000D	110.72	Direct	Form 4 ↗0001769841-26-000011
2026-10-01Filed 2026-10-05	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $109.02 to $110.00, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $110.02 to $111.02, inclusive. The Reporting Person undertakes to provide 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) F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $111.03 to $111.55, inclusive. The Reporting Person undertakes to provide 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) F5 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F6 Not applicable. References: F1, F6, F5	M Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative	38,474D	—	Direct	Form 4 ↗0001566391-26-000026
2026-10-01Filed 2026-10-05	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $109.02 to $110.00, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $110.02 to $111.02, inclusive. The Reporting Person undertakes to provide 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) F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $111.03 to $111.55, inclusive. The Reporting Person undertakes to provide 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) F5 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F6 Not applicable. References: F1, F4	S Sale (market/private)Common Stock, par value $.01 per share · Non-derivative	14,308D	111.18	Direct	Form 4 ↗0001566391-26-000026
2026-10-01Filed 2026-10-05	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $109.02 to $110.00, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $110.02 to $111.02, inclusive. The Reporting Person undertakes to provide 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) F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $111.03 to $111.55, inclusive. The Reporting Person undertakes to provide 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) F5 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F6 Not applicable. References: F1, F3	S Sale (market/private)Common Stock, par value $.01 per share · Non-derivative	10,808D	110.56	Direct	Form 4 ↗0001566391-26-000026
2026-10-01Filed 2026-10-05	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $109.02 to $110.00, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $110.02 to $111.02, inclusive. The Reporting Person undertakes to provide 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) F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $111.03 to $111.55, inclusive. The Reporting Person undertakes to provide 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) F5 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F6 Not applicable. References: F1, F2	S Sale (market/private)Common Stock, par value $.01 per share · Non-derivative	13,358D	109.57	Direct	Form 4 ↗0001566391-26-000026
2026-10-01Filed 2026-10-05	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $109.02 to $110.00, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $110.02 to $111.02, inclusive. The Reporting Person undertakes to provide 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) F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $111.03 to $111.55, inclusive. The Reporting Person undertakes to provide 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) F5 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F6 Not applicable. References: F1	M Exercise / conversionCommon Stock, par value $.01 per share · Non-derivative	38,474A	37	Direct	Form 4 ↗0001566391-26-000026
2026-09-01Filed 2026-09-02	McIntosh Greg WOfficer · EVP, Chief Commercial Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 8, 2026. References: F1	S Sale (market/private)Common Stock, par value $.01 per share · Non-derivative	5,000D	115.6	Direct	Form 4 ↗0001769841-26-000009
2026-09-01Filed 2026-09-02	Kidd MarkOfficer · EVP, GM Data Centers & ALM Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 20, 2025. References: F1	S Sale (market/private)Common Stock, par value $.01 per share · Non-derivative	6,000D	115.6	Direct	Form 4 ↗0001732058-26-000021
2026-09-01Filed 2026-09-02	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $112.75 to $113.74, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $113.75 to $114.74, inclusive. The Reporting Person undertakes to provide 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). F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $114.75 to $115.67, inclusive. The Reporting Person undertakes to provide 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). F5 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $115.96 to $116.22, inclusive. The Reporting Person undertakes to provide 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). F6 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F7 Not applicable. References: F1, F7, F6	M Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative	38,474D	—	Direct	Form 4 ↗0001566391-26-000024
2026-09-01Filed 2026-09-02	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $112.75 to $113.74, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $113.75 to $114.74, inclusive. The Reporting Person undertakes to provide 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). F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $114.75 to $115.67, inclusive. The Reporting Person undertakes to provide 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). F5 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $115.96 to $116.22, inclusive. The Reporting Person undertakes to provide 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). F6 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F7 Not applicable. References: F1, F5	S Sale (market/private)Common Stock, par value $.01 per share · Non-derivative	89D	116	Direct	Form 4 ↗0001566391-26-000024
2026-09-01Filed 2026-09-02	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $112.75 to $113.74, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $113.75 to $114.74, inclusive. The Reporting Person undertakes to provide 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). F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $114.75 to $115.67, inclusive. The Reporting Person undertakes to provide 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). F5 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $115.96 to $116.22, inclusive. The Reporting Person undertakes to provide 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). F6 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F7 Not applicable. References: F1, F4	S Sale (market/private)Common Stock, par value $.01 per share · Non-derivative	6,101D	115	Direct	Form 4 ↗0001566391-26-000024
2026-09-01Filed 2026-09-02	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $112.75 to $113.74, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $113.75 to $114.74, inclusive. The Reporting Person undertakes to provide 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). F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $114.75 to $115.67, inclusive. The Reporting Person undertakes to provide 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). F5 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $115.96 to $116.22, inclusive. The Reporting Person undertakes to provide 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). F6 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F7 Not applicable. References: F1, F3	S Sale (market/private)Common Stock, par value $.01 per share · Non-derivative	20,952D	114.14	Direct	Form 4 ↗0001566391-26-000024
2026-09-01Filed 2026-09-02	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $112.75 to $113.74, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $113.75 to $114.74, inclusive. The Reporting Person undertakes to provide 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). F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $114.75 to $115.67, inclusive. The Reporting Person undertakes to provide 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). F5 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $115.96 to $116.22, inclusive. The Reporting Person undertakes to provide 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). F6 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F7 Not applicable. References: F1, F2	S Sale (market/private)Common Stock, par value $.01 per share · Non-derivative	11,332D	113.45	Direct	Form 4 ↗0001566391-26-000024
2026-09-01Filed 2026-09-02	Meaney William LDirector · Officer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025. F2 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 $112.75 to $113.74, 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 (2). F3 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $113.75 to $114.74, inclusive. The Reporting Person undertakes to provide 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). F4 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $114.75 to $115.67, inclusive. The Reporting Person undertakes to provide 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). F5 The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $115.96 to $116.22, inclusive. The Reporting Person undertakes to provide 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). F6 This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested. F7 Not applicable. References: F1	M Exercise / conversionCommon Stock, par value $.01 per share · Non-derivative	38,474A	37	Direct	Form 4 ↗0001566391-26-000024
2026-08-07Filed 2026-08-10	Kidd MarkOfficer · EVP, GM Data Centers & ALM Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 20, 2025. References: F1	S Sale (market/private)Common Stock, par value $.01 per share · Non-derivative	6,000D	122.7	Direct	Form 4 ↗0001732058-26-000019

Imported instruments only. Joint owners do not multiply transactions. Amendments are separate filing rows, not additional trades. No aggregate trade totals are implied.