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Meaney William L

Disclosed activity across 2 companies

Tapewire entity
575
SEC CIK
0001566391

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
IRON MOUNTAIN INCIRM · Entity 517Director · President and CEOOctober 01, 2026October 05, 2026
STATE STREET CORPSTT · Entity 242DirectorMay 20, 2026May 22, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

IRON MOUNTAIN INC

Report date October 01, 2026 · Filed October 05, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common Stock, par value $.01 per shareSEC Table I · non-derivativeDirect0 Ending reported balance After 2026-10-01 transaction · row 4
4 source rows · reconciled sequence

Row 1 · 2026-10-01 · Exercise / conversion · Acquired 38,474 · Balance 38,474

F1: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

Row 2 · 2026-10-01 · Sale · Disposed 13,358 · Balance 25,116

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).

Row 3 · 2026-10-01 · Sale · Disposed 10,808 · Balance 14,308

F1: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

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)

Row 4 · 2026-10-01 · Sale · Disposed 14,308 · Balance 0

F1: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

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)

Employee Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $37.00 · Expires 2027-02-16Direct76,948 Reported balance After 2026-10-01 transaction · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · 2026-10-01 · Exercise / conversion · Disposed 38,474 · Balance 76,948

F1: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

F6: Not applicable.

F5: This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested.

Common Stock, par value $.01 per shareSEC Table I · non-derivativeIndirectBy Meaney 2024 Master Trust82,970 Reported balance Holding disclosure · report date 2026-10-01 · row 5 Holding and transaction disclosures are not merged.
1 source row

Row 5 · Balance 82,970

Common Stock, par value $.01 per shareSEC Table I · non-derivativeIndirectBy Meaney Master Trust #2212,680 Reported balance Holding disclosure · report date 2026-10-01 · row 6 Holding and transaction disclosures are not merged.
1 source row

Row 6 · Balance 212,680

Filing footnotes · ownership attribution and instrument terms

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.

STATE STREET CORP

Report date May 20, 2026 · Filed May 22, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect26,472 Reported balance After 2026-05-20 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2026-05-20 · Grant · Acquired 1,526 · Balance 26,472

F1: Payment of Director's annual stock award.

F2: Includes Director's stock compensation dividend equivalents acquired through the date of this report.

Common StockSEC Table I · non-derivativeIndirectBy GST Trust30 Reported balance Holding disclosure · report date 2026-05-20 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 30

F3: By a trust. The reporting person continues to report beneficial ownership of STT common stock held by the trust but disclaims beneficial ownership except to the extent of his pecuniary interest therein.

Common StockSEC Table I · non-derivativeIndirectBy Spousal Trust30 Reported balance Holding disclosure · report date 2026-05-20 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 30

F3: By a trust. The reporting person continues to report beneficial ownership of STT common stock held by the trust but disclaims beneficial ownership except to the extent of his pecuniary interest therein.

Filing footnotes · ownership attribution and instrument terms

F1: Payment of Director's annual stock award.

F2: Includes Director's stock compensation dividend equivalents acquired through the date of this report.

F3: By a trust. The reporting person continues to report beneficial ownership of STT common stock held by the trust but disclaims beneficial ownership except to the extent of his pecuniary interest therein.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
March 02, 2026 Filed Mar 4, 2026 00:31 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 16,457 $108.91 $1,792,331.87
Disclosure

SEC source: 0001566391-26-000008 · wk-form4_1772584292.xml · nonDerivative · entry 10

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 315,916

F3 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

F10 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $108.39 to $109.36, 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 (10).

Read SEC document
March 02, 2026 Filed Mar 4, 2026 00:31 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 2,076 $107.95 $224,104.20
Disclosure

SEC source: 0001566391-26-000008 · wk-form4_1772584292.xml · nonDerivative · entry 9

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 332,373

F3 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

F9 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $107.35 to $108.35, 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 (9).

Read SEC document
March 02, 2026 Filed Mar 4, 2026 00:31 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionCommon Stock, par value $.01 per share 38,474 $37.00 $1,423,538.00
Disclosure

SEC source: 0001566391-26-000008 · wk-form4_1772584292.xml · nonDerivative · entry 8

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 334,449

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 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

Read SEC document
March 02, 2026 Filed Mar 4, 2026 00:31 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 3,200 $110.74 $354,368.00
Disclosure

SEC source: 0001566391-26-000008 · wk-form4_1772584292.xml · nonDerivative · entry 7

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 295,975

F3 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

F8 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $110.70 to $110.79, 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 (8).

Read SEC document
March 02, 2026 Filed Mar 4, 2026 00:31 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 41,456 $110.05 $4,562,232.80
Disclosure

SEC source: 0001566391-26-000008 · wk-form4_1772584292.xml · nonDerivative · entry 6

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 299,175

F3 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

F7 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $109.68 to $110.58, 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 (7).

Read SEC document
March 02, 2026 Filed Mar 4, 2026 00:31 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 37,296 $109.07 $4,067,874.72
Disclosure

SEC source: 0001566391-26-000008 · wk-form4_1772584292.xml · nonDerivative · entry 5

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 340,631

F3 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

F6 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $108.67 to $109.66, 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 (6).

Read SEC document
March 02, 2026 Filed Mar 4, 2026 00:31 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 13,778 $108.27 $1,491,744.06
Disclosure

SEC source: 0001566391-26-000008 · wk-form4_1772584292.xml · nonDerivative · entry 4

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 377,927

F3 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

F5 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $107.67 to $108.66, 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).

Read SEC document
March 02, 2026 Filed Mar 4, 2026 00:31 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 2,929 $107.16 $313,871.64
Disclosure

SEC source: 0001566391-26-000008 · wk-form4_1772584292.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 391,705

F3 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares of the Company common stock ("Common Stock") were sold in multiple transactions at prices ranging from $106.65 to $107.64, 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).

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March 01, 2026 Filed Mar 4, 2026 00:31 UTC IRON MOUNTAIN INC IRM · Entity 517 GrantEmployee Stock Option (Right to Buy) · Derivative 74,069 Not disclosed Strike: $108.33 Not disclosed
Disclosure

SEC source: 0001566391-26-000008 · wk-form4_1772584292.xml · derivative · entry 16

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 74,069

Underlying: Common Stock, par value $.01 per share · 74,069 shares

Expires not disclosed

F16 · price: Not applicable.

F15 · derivative.exercise_date: This stock option becomes exercisable in three substantially equal annual installments beginning on the first anniversary of the date of grant.

F15 · derivative.expiration_date: This stock option becomes exercisable in three substantially equal annual installments beginning on the first anniversary of the date of grant.

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March 01, 2026 Filed Mar 4, 2026 00:31 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionPerformance Units · Derivative 650,674 $0.00 $0.00
Disclosure

SEC source: 0001566391-26-000008 · wk-form4_1772584292.xml · derivative · entry 15

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.01 per share · 650,674 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.

F13 · derivative.exercise_price: Each PU represents a contingent right to receive one share of Common Stock.

F14 · derivative.exercise_date: The PUs were initially granted to the Reporting Person on March 1, 2023. Effective as of February 16, 2026, 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, 2026.

F14 · derivative.expiration_date: The PUs were initially granted to the Reporting Person on March 1, 2023. Effective as of February 16, 2026, 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, 2026.

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March 01, 2026 Filed Mar 4, 2026 00:31 UTC IRON MOUNTAIN INC IRM · Entity 517 Tax withholdingCommon Stock, par value $.01 per share 256,040 $108.33 $27,736,813.20
Disclosure

SEC source: 0001566391-26-000008 · wk-form4_1772584292.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 394,634

F2 · shares: Represents the number of shares of Common Stock that have been withheld by the Issuer to satisfy its income tax withholding obligation in connection with the net settlement of the PUs and does not represent a sale.

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March 01, 2026 Filed Mar 4, 2026 00:31 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionCommon Stock, par value $.01 per share 650,674 $0.00 $0.00
Disclosure

SEC source: 0001566391-26-000008 · wk-form4_1772584292.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 650,674

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, 2023. Effective February 16, 2026, the Compensation Committee of Iron Mountain Incorporated (the "Company")'s Board of Directors determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2026.

Read SEC document
February 20, 2026 Filed Feb 24, 2026 21:06 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative 38,474 Not disclosed Strike: $37.00 Not disclosed
Disclosure

SEC source: 0001566391-26-000006 · wk-form4_1771967173.xml · derivative · entry 5

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 384,740

Underlying: Common Stock, par value $.01 per share · 38,474 shares

Expires 2027-02-16

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: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

F3 · price: Not applicable.

F2 · derivative.exercise_date: This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested.

Read SEC document
February 20, 2026 Filed Feb 24, 2026 21:06 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 38,474 $108.17 $4,161,732.58
Disclosure

SEC source: 0001566391-26-000006 · wk-form4_1771967173.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

Read SEC document
February 20, 2026 Filed Feb 24, 2026 21:06 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionCommon Stock, par value $.01 per share 38,474 $37.00 $1,423,538.00
Disclosure

SEC source: 0001566391-26-000006 · wk-form4_1771967173.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,474

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: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

Read SEC document
February 16, 2026 Filed Feb 19, 2026 00:47 UTC IRON MOUNTAIN INC IRM · Entity 517 GrantPerformance Units · Derivative 464,767 $0.00 $0.00
Disclosure

SEC source: 0001566391-26-000004 · wk-form4_1771462073.xml · derivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 650,674

Underlying: Common Stock, par value $.01 per share · 464,767 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Performance Unit ("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, 2023. This Form 4 is being filed to reflect the determination by the Compensation Committee, effective as of February 16, 2026, of the actual award of PUs under the grant after completion of the relevant performance period.

F3 · derivative.exercise_date: The PU were initially granted to the Reporting Person on March 1, 2023, and will fully vest on March 1, 2026.

F3 · derivative.expiration_date: The PU were initially granted to the Reporting Person on March 1, 2023, and will fully vest on March 1, 2026.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 23:12 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative 38,482 Not disclosed Strike: $37.00 Not disclosed
Disclosure

SEC source: 0001566391-26-000002 · wk-form4_1767741131.xml · derivative · entry 6

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 423,214

Underlying: Common Stock, par value $.01 per share · 38,482 shares

Expires 2027-02-16

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: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

F5 · price: Not applicable.

F4 · derivative.exercise_date: This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 23:12 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 12,673 $83.55 $1,058,765.79
Disclosure

SEC source: 0001566391-26-000002 · wk-form4_1767741131.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $83.405 to $83.755, 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).

Read SEC document
January 02, 2026 Filed Jan 6, 2026 23:12 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 25,809 $82.99 $2,141,837.29
Disclosure

SEC source: 0001566391-26-000002 · wk-form4_1767741131.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 12,673

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

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 $82.405 to $83.402, 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).

Read SEC document
January 02, 2026 Filed Jan 6, 2026 23:12 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionCommon Stock, par value $.01 per share 38,482 $37.00 $1,423,834.00
Disclosure

SEC source: 0001566391-26-000002 · wk-form4_1767741131.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,482

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: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.

Read SEC document
December 01, 2025 Filed Dec 3, 2025 23:07 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative 69,125 Not disclosed Strike: $36.59 Not disclosed
Disclosure

SEC source: 0001566391-25-000010 · wk-form4_1764803271.xml · derivative · entry 6

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.01 per share · 69,125 shares

Expires 2026-02-18

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: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

F5 · price: Not applicable.

F4 · derivative.exercise_date: This stock option, initially representing a right to purchase a total of 829,506 shares, is fully vested.

Read SEC document
December 01, 2025 Filed Dec 3, 2025 23:07 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 10,569 $83.93 $887,098.45
Disclosure

SEC source: 0001566391-25-000010 · wk-form4_1764803271.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $83.730 to $84.570, 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).

Read SEC document
December 01, 2025 Filed Dec 3, 2025 23:07 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 58,556 $83.23 $4,873,557.32
Disclosure

SEC source: 0001566391-25-000010 · wk-form4_1764803271.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,569

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

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 $82.730 to $83.720, 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).

Read SEC document
December 01, 2025 Filed Dec 3, 2025 23:07 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionCommon Stock, par value $.01 per share 69,125 $36.59 $2,529,145.50
Disclosure

SEC source: 0001566391-25-000010 · wk-form4_1764803271.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 69,125

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: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

Read SEC document
November 03, 2025 Filed Nov 5, 2025 21:11 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative 69,125 $36.59 Strike: $36.59 $2,529,145.50
Disclosure

SEC source: 0001566391-25-000008 · wk-form4_1762377112.xml · derivative · entry 6

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 69,125

Underlying: Common Stock, par value $.01 per share · 69,125 shares

Expires 2026-02-18

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: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

F6 · derivative.exercise_date: This stock option, representing a right to purchase a total of 829,506 shares, is fully vested.

Read SEC document
November 03, 2025 Filed Nov 5, 2025 21:11 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 10,828 $103.69 $1,122,744.49
Disclosure

SEC source: 0001566391-25-000008 · wk-form4_1762377112.xml · nonDerivative · entry 4

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

F4 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $103.510 to $103.805, 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)

Read SEC document
November 03, 2025 Filed Nov 5, 2025 21:11 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 35,678 $102.92 $3,672,051.12
Disclosure

SEC source: 0001566391-25-000008 · wk-form4_1762377112.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,828

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $102.485 to $103.470, 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).

Read SEC document
November 03, 2025 Filed Nov 5, 2025 21:11 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 22,619 $102.02 $2,307,590.38
Disclosure

SEC source: 0001566391-25-000008 · wk-form4_1762377112.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 46,506

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

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 $101.475 to $102.475, 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).

Read SEC document
November 03, 2025 Filed Nov 5, 2025 21:11 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionCommon Stock, par value $.01 per share 69,125 $36.59 $2,529,145.50
Disclosure

SEC source: 0001566391-25-000008 · wk-form4_1762377112.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 69,125

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: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

Read SEC document
October 01, 2025 Filed Oct 3, 2025 20:05 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative 69,125 $36.59 Strike: $36.59 $2,529,145.50
Disclosure

SEC source: 0001566391-25-000006 · wk-form4_1759521934.xml · derivative · entry 5

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 138,250

Underlying: Common Stock, par value $.01 per share · 69,125 shares

Expires 2026-02-18

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: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

F5 · derivative.exercise_date: This stock option, representing a right to purchase a total of 829,506 shares, is fully vested.

Read SEC document
October 01, 2025 Filed Oct 3, 2025 20:05 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 40,062 $102.60 $4,110,321.14
Disclosure

SEC source: 0001566391-25-000006 · wk-form4_1759521934.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $102.290 to $103.260, 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).

Read SEC document
October 01, 2025 Filed Oct 3, 2025 20:05 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 29,063 $101.99 $2,963,990.06
Disclosure

SEC source: 0001566391-25-000006 · wk-form4_1759521934.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,062

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

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 $101.29 to $102.285, 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).

Read SEC document
October 01, 2025 Filed Oct 3, 2025 20:05 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionCommon Stock, par value $.01 per share 69,125 $36.59 $2,529,145.50
Disclosure

SEC source: 0001566391-25-000006 · wk-form4_1759521934.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 69,125

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: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

Read SEC document
September 03, 2025 Filed Sep 5, 2025 20:06 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative 69,125 $36.59 Strike: $36.59 $2,529,145.50
Disclosure

SEC source: 0001020569-25-000181 · wk-form4_1757102760.xml · derivative · entry 4

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 207,375

Underlying: Common Stock, par value $.01 per share · 69,125 shares

Expires 2026-02-18

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: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

F3 · derivative.exercise_date: This stock option, representing a right to purchase a total of 829,506 shares, is fully vested.

Read SEC document
September 03, 2025 Filed Sep 5, 2025 20:06 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 69,125 $89.56 $6,191,111.50
Disclosure

SEC source: 0001020569-25-000181 · wk-form4_1757102760.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

Read SEC document
September 03, 2025 Filed Sep 5, 2025 20:06 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionCommon Stock, par value $.01 per share 69,125 $36.59 $2,529,145.50
Disclosure

SEC source: 0001020569-25-000181 · wk-form4_1757102760.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 69,125

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: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

Read SEC document
August 01, 2025 Filed Aug 5, 2025 20:26 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative 69,125 $36.59 Strike: $36.59 $2,529,145.50
Disclosure

SEC source: 0001020569-25-000170 · wk-form4_1754425596.xml · derivative · entry 7

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 276,500

Underlying: Common Stock, par value $.01 per share · 69,125 shares

Expires 2026-02-18

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: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

F6 · derivative.exercise_date: This stock option, representing a right to purchase a total of 829,506 shares, is fully vested.

Read SEC document
August 01, 2025 Filed Aug 5, 2025 20:26 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 58 $96.62 $5,604.13
Disclosure

SEC source: 0001020569-25-000170 · wk-form4_1754425596.xml · nonDerivative · entry 5

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

Read SEC document
August 01, 2025 Filed Aug 5, 2025 20:26 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 10,702 $95.80 $1,025,219.49
Disclosure

SEC source: 0001020569-25-000170 · wk-form4_1754425596.xml · nonDerivative · entry 4

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 58

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

F4 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $95.512 to $96.470, 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).

Read SEC document
August 01, 2025 Filed Aug 5, 2025 20:26 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 17,336 $95.00 $1,646,850.66
Disclosure

SEC source: 0001020569-25-000170 · wk-form4_1754425596.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,760

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $94.510 to $95.502, 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).

Read SEC document
August 01, 2025 Filed Aug 5, 2025 20:26 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 41,029 $94.04 $3,858,408.19
Disclosure

SEC source: 0001020569-25-000170 · wk-form4_1754425596.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,096

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

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 $93.500 to $94.440, 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).

Read SEC document
August 01, 2025 Filed Aug 5, 2025 20:26 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionCommon Stock, par value $.01 per share 69,125 $36.59 $2,529,145.50
Disclosure

SEC source: 0001020569-25-000170 · wk-form4_1754425596.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 69,125

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: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2023.

Read SEC document
July 01, 2025 Filed Jul 2, 2025 21:13 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative 69,125 $36.59 Strike: $36.59 $2,529,145.50
Disclosure

SEC source: 0001566391-25-000004 · wk-form4_1751490827.xml · derivative · entry 6

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 345,625

Underlying: Common Stock, par value $.01 per share · 69,125 shares

Expires 2026-02-18

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: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2023.

F6 · derivative.exercise_date: This stock option, representing a right to purchase a total of 829,506 shares, is fully vested.

Read SEC document
July 01, 2025 Filed Jul 2, 2025 21:13 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 2,624 $101.85 $267,259.65
Disclosure

SEC source: 0001566391-25-000004 · wk-form4_1751490827.xml · nonDerivative · entry 4

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2023.

F4 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $101.630 to $102.260, 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).

Read SEC document
July 01, 2025 Filed Jul 2, 2025 21:13 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 12,339 $101.01 $1,246,325.37
Disclosure

SEC source: 0001566391-25-000004 · wk-form4_1751490827.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,624

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $100.630 to $101.620, 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).

Read SEC document
July 01, 2025 Filed Jul 2, 2025 21:13 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 54,162 $100.14 $5,423,566.03
Disclosure

SEC source: 0001566391-25-000004 · wk-form4_1751490827.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,963

F1 · kind: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2023.

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 $99.630 to $100.620, 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).

Read SEC document
July 01, 2025 Filed Jul 2, 2025 21:13 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionCommon Stock, par value $.01 per share 69,125 $36.59 $2,529,145.50
Disclosure

SEC source: 0001566391-25-000004 · wk-form4_1751490827.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 69,125

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: The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2023.

Read SEC document
June 02, 2025 Filed Jun 3, 2025 20:06 UTC IRON MOUNTAIN INC IRM · Entity 517 Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative 69,125 $36.59 Strike: $36.59 $2,529,145.50
Disclosure

SEC source: 0001020569-25-000141 · wk-form4_1748981184.xml · derivative · entry 6

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 414,750

Underlying: Common Stock, par value $.01 per share · 69,125 shares

Expires 2026-02-18

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_date: This stock option, representing a right to purchase a total of 829,506 shares, is fully vested.

Read SEC document
June 02, 2025 Filed Jun 3, 2025 20:06 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 36,248 $99.18 $3,595,185.38
Disclosure

SEC source: 0001020569-25-000141 · wk-form4_1748981184.xml · nonDerivative · entry 4

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F3 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $98.880 to $99.465, 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).

Read SEC document
June 02, 2025 Filed Jun 3, 2025 20:06 UTC IRON MOUNTAIN INC IRM · Entity 517 SaleCommon Stock, par value $.01 per share 24,230 $98.61 $2,389,320.30
Disclosure

SEC source: 0001020569-25-000141 · wk-form4_1748981184.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 36,248

F2 · price: The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $97.880 to $98.877, 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 (2).

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.