IRM

SEC source: 0001020569-24-000080 · wk-form4_1709765178.xml · nonDerivative · entry 2

Meaney William L · CIK 0001566391 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 434,182

F2 · price: 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 $79.005 to $79.905, 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).

SEC source: 0001020569-24-000080 · wk-form4_1709765178.xml · nonDerivative · entry 1

Meaney William L · CIK 0001566391 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 476,388

F1 · price: 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 $78.005 to $79.000, 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 (1).

SEC source: 0001020569-24-000078 · wk-form4_1709764859.xml · nonDerivative · entry 1

Baker-Greene Edward · CIK 0001645452 · EVP, CHRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,150

SEC source: 0001020569-24-000076 · wk-form4_1709764738.xml · nonDerivative · entry 1

Borges Daniel · CIK 0001720656 · SVP & Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,095

SEC source: 0001020569-24-000068 · wk-form4_1709678503.xml · derivative · entry 12

MARSON DEBORAH · CIK 0001691591 · EVP, General Counsel, Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,279

Underlying: Common Stock · 2,139 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F10 · derivative.exercise_date: The RSUs, representing a contingent right to receive a total of 6,418 shares of Common Stock, were granted to the Reporting Person on March 1, 2023 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

F10 · derivative.expiration_date: The RSUs, representing a contingent right to receive a total of 6,418 shares of Common Stock, were granted to the Reporting Person on March 1, 2023 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001020569-24-000068 · wk-form4_1709678503.xml · derivative · entry 11

MARSON DEBORAH · CIK 0001691591 · EVP, General Counsel, Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,846

Underlying: Common Stock · 1,845 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F9 · derivative.exercise_date: The RSUs, representing a contingent right to receive a total of 5,536 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.

F9 · derivative.expiration_date: The RSUs, representing a contingent right to receive a total of 5,536 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.

SEC source: 0001020569-24-000068 · wk-form4_1709678503.xml · derivative · entry 10

MARSON DEBORAH · CIK 0001691591 · EVP, General Counsel, Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,527 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F8 · derivative.exercise_date: The RSUs, representing a contingent right to receive a total of 19,579, were granted to the Reporting Person on March 1, 2021 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

F8 · derivative.expiration_date: The RSUs, representing a contingent right to receive a total of 19,579, were granted to the Reporting Person on March 1, 2021 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001020569-24-000068 · wk-form4_1709678503.xml · derivative · entry 9

MARSON DEBORAH · CIK 0001691591 · EVP, General Counsel, Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 26,667 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Each PU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F6 · derivative.exercise_date: The PUs were initially granted to the Reporting Person on March 1, 2021. Effective February 22, 2024, the Compensation Committee determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2024.

F6 · derivative.expiration_date: The PUs were initially granted to the Reporting Person on March 1, 2021. Effective February 22, 2024, the Compensation Committee determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2024.

SEC source: 0001020569-24-000068 · wk-form4_1709678503.xml · nonDerivative · entry 8

MARSON DEBORAH · CIK 0001691591 · EVP, General Counsel, Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 69,286

SEC source: 0001020569-24-000068 · wk-form4_1709678503.xml · nonDerivative · entry 7

MARSON DEBORAH · CIK 0001691591 · EVP, General Counsel, Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 70,269

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · shares: This acquisition is reported to reflect the partial vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on March 1, 2023.

SEC source: 0001020569-24-000068 · wk-form4_1709678503.xml · nonDerivative · entry 6

MARSON DEBORAH · CIK 0001691591 · EVP, General Counsel, Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 68,130

SEC source: 0001020569-24-000068 · wk-form4_1709678503.xml · nonDerivative · entry 5

MARSON DEBORAH · CIK 0001691591 · EVP, General Counsel, Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 68,978

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: This acquisition is reported to reflect the partial vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on March 1, 2022.

SEC source: 0001020569-24-000068 · wk-form4_1709678503.xml · nonDerivative · entry 4

MARSON DEBORAH · CIK 0001691591 · EVP, General Counsel, Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 67,133

SEC source: 0001020569-24-000068 · wk-form4_1709678503.xml · nonDerivative · entry 3

MARSON DEBORAH · CIK 0001691591 · EVP, General Counsel, Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 70,135

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: This acquisition is reported to reflect the full vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on March 1, 2021.

SEC source: 0001020569-24-000068 · wk-form4_1709678503.xml · nonDerivative · entry 2

MARSON DEBORAH · CIK 0001691591 · EVP, General Counsel, Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 63,608

SEC source: 0001020569-24-000068 · wk-form4_1709678503.xml · nonDerivative · entry 1

MARSON DEBORAH · CIK 0001691591 · EVP, General Counsel, Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 74,693

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: This acquisition is reported to reflect the full vesting of performance units ("PUs") previously granted to the Reporting Person on March 1, 2021. Effective February 22, 2024, the Compensation Committee of Iron Mountain Incorporated's Board of Directors (the "Compensation Committee") determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2024.

SEC source: 0001020569-24-000074 · wk-form4_1709679234.xml · derivative · entry 13

Tomovcsik John · CIK 0001595956 · EVP, Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,990

Underlying: Common Stock · 7,990 shares

Expires not disclosed

F7 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F11 · derivative.exercise_date: The RSUs vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

F11 · derivative.expiration_date: The RSUs vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001020569-24-000074 · wk-form4_1709679234.xml · derivative · entry 12

Tomovcsik John · CIK 0001595956 · EVP, Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,210

Underlying: Common Stock · 4,104 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F10 · derivative.exercise_date: The RSUs, representing a contingent right to receive a total of 12,314 shares of Common Stock, were granted to the Reporting Person on March 1, 2023 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

F10 · derivative.expiration_date: The RSUs, representing a contingent right to receive a total of 12,314 shares of Common Stock, were granted to the Reporting Person on March 1, 2023 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001020569-24-000074 · wk-form4_1709679234.xml · derivative · entry 11

Tomovcsik John · CIK 0001595956 · EVP, Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,104

Underlying: Common Stock · 3,104 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F9 · derivative.exercise_date: The RSUs, representing a contingent right to receive a total of 9,311 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.

F9 · derivative.expiration_date: The RSUs, representing a contingent right to receive a total of 9,311 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.

SEC source: 0001020569-24-000074 · wk-form4_1709679234.xml · derivative · entry 10

Tomovcsik John · CIK 0001595956 · EVP, Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,550 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F8 · derivative.exercise_date: The RSUs, representing a contingent right to receive a total of 28,649 shares of Common Stock, were granted to the Reporting Person on March 1, 2021 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

F8 · derivative.expiration_date: The RSUs, representing a contingent right to receive a total of 28,649 shares of Common Stock, were granted to the Reporting Person on March 1, 2021 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001020569-24-000074 · wk-form4_1709679234.xml · derivative · entry 9

Tomovcsik John · CIK 0001595956 · EVP, Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 40,001 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Each PU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F6 · derivative.exercise_date: The PUs were initially granted to the Reporting Person on March 1, 2021. Effective February 22, 2024, the Compensation Committee determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2024.

F6 · derivative.expiration_date: The PUs were initially granted to the Reporting Person on March 1, 2021. Effective February 22, 2024, the Compensation Committee determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2024.

SEC source: 0001020569-24-000074 · wk-form4_1709679234.xml · nonDerivative · entry 8

Tomovcsik John · CIK 0001595956 · EVP, Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 55,084

SEC source: 0001020569-24-000074 · wk-form4_1709679234.xml · nonDerivative · entry 7

Tomovcsik John · CIK 0001595956 · EVP, Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 56,731

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · shares: This acquisition is reported to reflect the partial vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on March 1, 2023.

SEC source: 0001020569-24-000074 · wk-form4_1709679234.xml · nonDerivative · entry 6

Tomovcsik John · CIK 0001595956 · EVP, Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 52,627

SEC source: 0001020569-24-000074 · wk-form4_1709679234.xml · nonDerivative · entry 5

Tomovcsik John · CIK 0001595956 · EVP, Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 53,872

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: This acquisition is reported to reflect the partial vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on March 1, 2022.

SEC source: 0001020569-24-000074 · wk-form4_1709679234.xml · nonDerivative · entry 4

Tomovcsik John · CIK 0001595956 · EVP, Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 50,768

SEC source: 0001020569-24-000074 · wk-form4_1709679234.xml · nonDerivative · entry 3

Tomovcsik John · CIK 0001595956 · EVP, Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 54,825

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: This acquisition is reported to reflect the full vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on March 1, 2021.

SEC source: 0001020569-24-000074 · wk-form4_1709679234.xml · nonDerivative · entry 2

Tomovcsik John · CIK 0001595956 · EVP, Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 45,275

SEC source: 0001020569-24-000074 · wk-form4_1709679234.xml · nonDerivative · entry 1

Tomovcsik John · CIK 0001595956 · EVP, Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 60,456

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: This acquisition is reported to reflect the full vesting of performance units ("PUs") previously granted to the Reporting Person on March 1, 2021. Effective February 22, 2024, the Compensation Committee of Iron Mountain Incorporated's Board of Directors (the "Compensation Committee") determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2024.

SEC source: 0001020569-24-000072 · wk-form4_1709679075.xml · derivative · entry 10

Meaney William L · CIK 0001566391 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 83,054

Underlying: Common Stock · 83,054 shares

Expires 2034-03-01

F9 · derivative.exercise_date: This stock option becomes exercisable in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001020569-24-000072 · wk-form4_1709679075.xml · derivative · entry 9

Meaney William L · CIK 0001566391 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,047

Underlying: Common Stock · 7,046 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F8 · derivative.exercise_date: 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.

F8 · derivative.expiration_date: 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.

SEC source: 0001020569-24-000072 · wk-form4_1709679075.xml · derivative · entry 8

Meaney William L · CIK 0001566391 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 26,634 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F7 · derivative.exercise_date: The RSUs, representing a contingent right to receive a total of 79,902 shares of Common Stock, were granted to the Reporting Person on March 1, 2021 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

F7 · derivative.expiration_date: The RSUs, representing a contingent right to receive a total of 79,902 shares of Common Stock, were granted to the Reporting Person on March 1, 2021 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001020569-24-000072 · wk-form4_1709679075.xml · derivative · entry 7

Meaney William L · CIK 0001566391 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 382,451 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Each PU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F5 · derivative.exercise_date: The PUs were initially granted to the Reporting Person on March 1, 2021. Effective February 22, 2024, the Compensation Committee determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2024.

F5 · derivative.expiration_date: The PUs were initially granted to the Reporting Person on March 1, 2021. Effective February 22, 2024, the Compensation Committee determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2024.

SEC source: 0001020569-24-000072 · wk-form4_1709679075.xml · nonDerivative · entry 6

Meaney William L · CIK 0001566391 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 548,661

SEC source: 0001020569-24-000072 · wk-form4_1709679075.xml · nonDerivative · entry 5

Meaney William L · CIK 0001566391 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 551,433

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: This acquisition is reported to reflect the partial vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on March 1, 2022.

SEC source: 0001020569-24-000072 · wk-form4_1709679075.xml · nonDerivative · entry 4

Meaney William L · CIK 0001566391 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 544,387

SEC source: 0001020569-24-000072 · wk-form4_1709679075.xml · nonDerivative · entry 3

Meaney William L · CIK 0001566391 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 554,241

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: This acquisition is reported to reflect the full vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on March 1, 2021.

SEC source: 0001020569-24-000072 · wk-form4_1709679075.xml · nonDerivative · entry 2

Meaney William L · CIK 0001566391 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 527,607

SEC source: 0001020569-24-000072 · wk-form4_1709679075.xml · nonDerivative · entry 1

Meaney William L · CIK 0001566391 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 678,101

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: This acquisition is reported to reflect the full vesting of performance units ("PUs") previously granted to the Reporting Person on March 1, 2021. Effective February 22, 2024, the Compensation Committee of Iron Mountain Incorporated's Board of Directors (the "Compensation Committee") determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2024.

SEC source: 0001020569-24-000070 · wk-form4_1709678648.xml · derivative · entry 9

McIntosh Greg W · CIK 0001769841 · EVP, CCO & GM, Global RM

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,104

Underlying: Common Stock · 3,104 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F8 · derivative.exercise_date: The RSUs, representing a contingent right to receive a total of 9,311 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.

F8 · derivative.expiration_date: The RSUs, representing a contingent right to receive a total of 9,311 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.

SEC source: 0001020569-24-000070 · wk-form4_1709678648.xml · derivative · entry 8

McIntosh Greg W · CIK 0001769841 · EVP, CCO & GM, Global RM

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,935 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F7 · derivative.exercise_date: The RSUs, representing a contingent right to receive a total of 11,805 shares of Common Stock, were granted to the Reporting Person on March 1, 2021 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

F7 · derivative.expiration_date: The RSUs, representing a contingent right to receive a total of 11,805 shares of Common Stock, were granted to the Reporting Person on March 1, 2021 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001020569-24-000070 · wk-form4_1709678648.xml · derivative · entry 7

McIntosh Greg W · CIK 0001769841 · EVP, CCO & GM, Global RM

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 21,334 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Each PU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F5 · derivative.exercise_date: The PUs were initially granted to the Reporting Person on March 1, 2021. Effective February 22, 2024, the Compensation Committee determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2024.

F5 · derivative.expiration_date: The PUs were initially granted to the Reporting Person on March 1, 2021. Effective February 22, 2024, the Compensation Committee determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2024.

SEC source: 0001020569-24-000070 · wk-form4_1709678648.xml · nonDerivative · entry 6

McIntosh Greg W · CIK 0001769841 · EVP, CCO & GM, Global RM

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,107

SEC source: 0001020569-24-000070 · wk-form4_1709678648.xml · nonDerivative · entry 5

McIntosh Greg W · CIK 0001769841 · EVP, CCO & GM, Global RM

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 29,768

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: This acquisition is reported to reflect the partial vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on March 1, 2022.

SEC source: 0001020569-24-000070 · wk-form4_1709678648.xml · nonDerivative · entry 4

McIntosh Greg W · CIK 0001769841 · EVP, CCO & GM, Global RM

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,664

SEC source: 0001020569-24-000070 · wk-form4_1709678648.xml · nonDerivative · entry 3

McIntosh Greg W · CIK 0001769841 · EVP, CCO & GM, Global RM

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,770

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: This acquisition is reported to reflect the full vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on March 1, 2021.

SEC source: 0001020569-24-000070 · wk-form4_1709678648.xml · nonDerivative · entry 2

McIntosh Greg W · CIK 0001769841 · EVP, CCO & GM, Global RM

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,835

SEC source: 0001020569-24-000070 · wk-form4_1709678648.xml · nonDerivative · entry 1

McIntosh Greg W · CIK 0001769841 · EVP, CCO & GM, Global RM

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 36,255

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: This acquisition is reported to reflect the full vesting of performance units ("PUs") previously granted to the Reporting Person on March 1, 2021. Effective February 22, 2024, the Compensation Committee of Iron Mountain Incorporated's Board of Directors (the "Compensation Committee") determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2024.

SEC source: 0001020569-24-000064 · wk-form4_1709678164.xml · derivative · entry 12

Baker-Greene Edward · CIK 0001645452 · EVP, CHRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,804

Underlying: Common Stock · 1,901 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F10 · derivative.exercise_date: The RSUs, representing a contingent right to receive a total of 5,705 shares of Common Stock, were granted to the Reporting Person on March 1, 2023 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

F10 · derivative.expiration_date: The RSUs, representing a contingent right to receive a total of 5,705 shares of Common Stock, were granted to the Reporting Person on March 1, 2023 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001020569-24-000064 · wk-form4_1709678164.xml · derivative · entry 11

Baker-Greene Edward · CIK 0001645452 · EVP, CHRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,013

Underlying: Common Stock · 2,013 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F9 · derivative.exercise_date: The RSUs, representing a contingent right to receive a total of 6,039 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.

F9 · derivative.expiration_date: The RSUs, representing a contingent right to receive a total of 6,039 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.