MARSON DEBORAH

SEC source: 0001020569-24-000224 · wk-form4_1725480381.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 59,686

SEC source: 0001020569-24-000216 · wk-form4_1723493522.xml · derivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,636 shares

Expires 2025-02-19

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 · derivative.exercise_date: This stock option, representing a right to purchase a total of 4,636 shares, is fully vested.

SEC source: 0001020569-24-000216 · wk-form4_1723493522.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 63,286

SEC source: 0001020569-24-000216 · wk-form4_1723493522.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 67,922

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.

SEC source: 0001020569-24-000130 · wk-form4_1715028101.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 63,286

SEC source: 0001020569-24-000100 · wk-form4_1712608346.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 65,286

SEC source: 0001020569-24-000082 · wk-form4_1709765272.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 67,286

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: 0001020569-24-000050 · wk-form4_1708988790.xml · derivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,667

Underlying: Common Stock · 10,831 shares

Expires not disclosed

F1 · derivative.exercise_price: Each PU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F2 · shares: The PUs were initially granted to the Reporting Person on March 1, 2021. This Form 4 is being filed to reflect the determination by the Compensation Committee, effective as of February 22, 2024, of the actual award of PUs under the grant after completion of the relevant performance period.

F3 · derivative.expiration_date: The PU were initially granted to the Reporting Person on March 1, 2021, and will fully vest on March 1, 2024.

F2 · balance_after: The PUs were initially granted to the Reporting Person on March 1, 2021. This Form 4 is being filed to reflect the determination by the Compensation Committee, effective as of February 22, 2024, of the actual award of PUs under the grant after completion of the relevant performance period.

SEC source: 0001020569-24-000027 · wk-form4_1706911242.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 48,026

SEC source: 0001020569-24-000008 · wk-form4_1704753564.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 50,026

SEC source: 0001020569-23-000220 · wk-form4_1701900592.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 52,026

SEC source: 0001020569-23-000216 · wk-form4_1699308025.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 54,026

SEC source: 0001020569-23-000193 · wf-form4_169662302974260.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 56,026

SEC source: 0001020569-23-000179 · wf-form4_169411745350971.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 58,026

SEC source: 0001020569-23-000171 · wf-form4_169144164177781.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 60,026

SEC source: 0001020569-23-000151 · wf-form4_168928191484090.xml · derivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,381 shares

Expires 2024-02-13

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 · derivative.exercise_date: This stock option, representing a right to purchase a total of 4,381 shares, is fully vested.

SEC source: 0001020569-23-000151 · wf-form4_168928191484090.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,026

F1 · kind: This transaction was effected pursuant to a 10b5-1 trading plan which was approved and became effective as of March 15, 2023.

SEC source: 0001020569-23-000151 · wf-form4_168928191484090.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 64,407

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 · kind: This transaction was effected pursuant to a 10b5-1 trading plan which was approved and became effective as of March 15, 2023.

SEC source: 0001020569-23-000143 · wf-form4_168729213430441.xml · derivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,381

Underlying: Common Stock · 2,000 shares

Expires 2024-02-13

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 · derivative.exercise_date: This stock option, representing a right to purchase a total of 4,381 shares, is fully vested.

SEC source: 0001020569-23-000143 · wf-form4_168729213430441.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,026

F1 · kind: This transaction was effected pursuant to a 10b5-1 trading plan which was approved and became effective as of March 15, 2023.

SEC source: 0001020569-23-000143 · wf-form4_168729213430441.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 64,026

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 · kind: This transaction was effected pursuant to a 10b5-1 trading plan which was approved and became effective as of March 15, 2023.

SEC source: 0001020569-23-000098 · wf-form4_168141854126647.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,026

F1 · kind: This transaction was effected pursuant to a 10b5-1 trading plan which was approved and became effective as of May 11, 2022.

SEC source: 0001020569-23-000086 · wf-form4_167841629195573.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 63,151

F1 · kind: This transaction was effected pursuant to a 10b5-1 trading plan which was approved and became effective as of May 11, 2022.

SEC source: 0001020569-23-000081 · wf-form4_167781094492861.xml · derivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,418

Underlying: Common Stock · 6,418 shares

Expires not disclosed

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F6 · derivative.exercise_date: The RSUs vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

F6 · derivative.expiration_date: The RSUs vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001020569-23-000081 · wf-form4_167781094492861.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,691

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.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F5 · 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.

F5 · 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: 0001020569-23-000081 · wf-form4_167781094492861.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,527

Underlying: Common Stock · 6,526 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.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F4 · derivative.exercise_date: The RSUs, representing a contingent right to receive a total of 19,579 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.

F4 · derivative.expiration_date: The RSUs, representing a contingent right to receive a total of 19,579 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: 0001020569-23-000081 · wf-form4_167781094492861.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,276

SEC source: 0001020569-23-000081 · wf-form4_167781094492861.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,050

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 partial vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on March 1, 2022.

SEC source: 0001020569-23-000081 · wf-form4_167781094492861.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 63,205

SEC source: 0001020569-23-000081 · wf-form4_167781094492861.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,945

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 partial vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on March 1, 2021.

SEC source: 0001020569-23-000062 · wf-form4_167753967202172.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,419

F2 · kind: This transaction was effected pursuant to a 10b5-1 trading plan which was approved and became effective as of May 11, 2022.

SEC source: 0001020569-23-000062 · wf-form4_167753967202172.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 18,037 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.

F3 · 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 February 19, 2020. Effective February 23, 2023, the Compensation Committee determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs vested in full on February 23, 2023.

F6 · derivative.expiration_date: The PUs were initially granted to the Reporting Person on February 19, 2020. Effective February 23, 2023, the Compensation Committee determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs vested in full on February 23, 2023.

SEC source: 0001020569-23-000062 · wf-form4_167753967202172.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,037

Underlying: Common Stock · 18,037 shares

Expires not disclosed

F3 · derivative.exercise_price: Each PU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F4 · shares: The PUs were initially granted to the Reporting Person on February 19, 2020. This Form 4 is being filed to reflect the determination by the Compensation Committee, effective as of February 23, 2023, of the actual award of PUs under the grant after completion of the relevant performance period.

F5 · derivative.exercise_date: The PUs were initially granted to the Reporting Person on February 19, 2020 and fully vested on February 23, 2023.

F5 · derivative.expiration_date: The PUs were initially granted to the Reporting Person on February 19, 2020 and fully vested on February 23, 2023.

SEC source: 0001020569-23-000062 · wf-form4_167753967202172.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,544

SEC source: 0001020569-23-000062 · wf-form4_167753967202172.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,250

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 February 19, 2020. Effective February 23, 2023, 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 vested in full on February 23, 2023.

SEC source: 0001020569-23-000048 · wf-form4_167719002448064.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,329 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.

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F3 · derivative.exercise_date: The RSUs, representing a contingent right to receive a total of 9,985 shares of Common Stock, were granted to the Reporting Person on February 19, 2020 and are fully vested.

F3 · derivative.expiration_date: The RSUs, representing a contingent right to receive a total of 9,985 shares of Common Stock, were granted to the Reporting Person on February 19, 2020 and are fully vested.

SEC source: 0001020569-23-000048 · wf-form4_167719002448064.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,213

SEC source: 0001020569-23-000048 · wf-form4_167719002448064.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,111

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 partial vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on February 19, 2020.