Reported relationships
Latest disclosed role at each company.
No relationships currently tracked through insider filings.
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.
No balances currently tracked through insider filings.
Past disclosures · reporting ended (1)
No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.
IRON MOUNTAIN INC
Report date July 01, 2025 · Filed July 03, 2025
Section 16 reporting ended · disclosed 2025-07-03. Current position is not established by this disclosure.
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 242,454.989 |
Reported balance
After 2025-07-01 transaction · row 1
1 source rowRow 1 · 2025-07-01 · Exercise / conversion · Acquired 90,860.989 · Balance 242,454.989 F1: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. The Reporting Person ceased service as a director effective May 29, 2025. |
| Phantom StockSEC Table II · derivative / convertible security | Direct | 0 |
Reported balance
After 2025-07-01 transaction · row 4
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 4 · 2025-07-01 · Exercise / conversion · Disposed 90,860.989 · Balance 0 F1: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. The Reporting Person ceased service as a director effective May 29, 2025. |
| Common Stock, par value $.01 per shareSEC Table I · non-derivative | IndirectSee footnote | 12,409 |
Reported balance
Holding disclosure · report date 2025-07-01 · row 2
Holding and transaction disclosures are not merged.
1 source rowRow 2 · Balance 12,409 F2: Shares held by the Clarke H. Bailey GST Trust for the benefit of Trent S. Bailey. |
| Common Stock, par value $.01 per shareSEC Table I · non-derivative | IndirectSee footnote | 12,409 |
Reported balance
Holding disclosure · report date 2025-07-01 · row 3
Holding and transaction disclosures are not merged.
1 source rowRow 3 · Balance 12,409 F3: Shares held by the Clarke H. Bailey GST Trust for the benefit of Turner H. Bailey. |
Filing footnotes · ownership attribution and instrument terms
F1: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. The Reporting Person ceased service as a director effective May 29, 2025.
F2: Shares held by the Clarke H. Bailey GST Trust for the benefit of Trent S. Bailey.
F3: Shares held by the Clarke H. Bailey GST Trust for the benefit of Turner H. Bailey.
Transaction history
JSON APIPurchases/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 date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| October 02, 2017 Filed Oct 4, 2017 23:54 UTC | IRON MOUNTAIN INC IRM · Entity 517 | GrantPhantom Stock · Derivative | 488.5963 | $38.54 | $18,828.16 |
DisclosureSEC source: 0001104659-17-060923 · a4.xml · derivative · entry 1 BAILEY CLARK H · CIK 0001183331 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 34,721.4254 Underlying: Common Stock · 488.5963 shares Expires not disclosed F1 · derivative.exercise_price: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F2 · shares: These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares. F1 · derivative.exercise_date: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F1 · derivative.expiration_date: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F2 · derivative.underlying_shares: These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares. Read SEC document |
| July 03, 2017 Filed Jul 6, 2017 20:41 UTC | IRON MOUNTAIN INC IRM · Entity 517 | GrantPhantom Stock · Derivative | 533.2218 | $34.76 | $18,535.00 |
DisclosureSEC source: 0001104659-17-043862 · a4.xml · derivative · entry 1 BAILEY CLARK H · CIK 0001183331 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 34,232.8291 Underlying: Common Stock · 533.2218 shares Expires not disclosed F1 · derivative.exercise_price: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F2 · shares: These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares. F1 · derivative.exercise_date: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F1 · derivative.expiration_date: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F2 · derivative.underlying_shares: These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares. Read SEC document |
| May 24, 2017 Filed May 26, 2017 22:33 UTC | IRON MOUNTAIN INC IRM · Entity 517 | GrantPhantom Stock · Derivative | 3,879 | $0.01 | $38.79 |
DisclosureSEC source: 0001104659-17-035795 · a4.xml · derivative · entry 1 BAILEY CLARK H · CIK 0001183331 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 33,699.6073 Underlying: Common Stock · 3,879 shares Expires not disclosed F1 · derivative.exercise_price: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan (the "Plan") with respect to certain restricted stock units ("RSUs") received on May 24, 2017, which RSUs vest on the grant date, the shares of phantom stock (the "Phantom Shares") will become payable in shares of the Issuer's common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F1 · derivative.exercise_date: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan (the "Plan") with respect to certain restricted stock units ("RSUs") received on May 24, 2017, which RSUs vest on the grant date, the shares of phantom stock (the "Phantom Shares") will become payable in shares of the Issuer's common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F1 · derivative.expiration_date: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan (the "Plan") with respect to certain restricted stock units ("RSUs") received on May 24, 2017, which RSUs vest on the grant date, the shares of phantom stock (the "Phantom Shares") will become payable in shares of the Issuer's common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. Read SEC document |
| May 01, 2017 Filed May 3, 2017 21:48 UTC | IRON MOUNTAIN INC IRM · Entity 517 | Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative | 8,798 | $0.00 Strike: $22.43 | $0.00 |
DisclosureSEC source: 0001104659-17-029500 · a4.xml · derivative · entry 5 BAILEY CLARK H · CIK 0001183331 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 8,798 shares Expires 2017-05-23 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_date: This stock option, representing a right to purchase a total of 8,798 shares of Common Stock, is fully vested. The number of stock options granted includes previously reported adjustments effective on September 26, 2014 made in connection with the Special Distribution. Read SEC document |
| May 01, 2017 Filed May 3, 2017 21:48 UTC | IRON MOUNTAIN INC IRM · Entity 517 | SaleCommon Stock, par value $.01 per share | 8,798 | $34.97 | $307,639.67 |
DisclosureSEC source: 0001104659-17-029500 · a4.xml · nonDerivative · entry 2 BAILEY CLARK H · CIK 0001183331 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 151,594 Read SEC document |
| May 01, 2017 Filed May 3, 2017 21:48 UTC | IRON MOUNTAIN INC IRM · Entity 517 | Exercise / conversionCommon Stock, par value $.01 per share | 8,798 | $22.43 | $197,330.34 |
DisclosureSEC source: 0001104659-17-029500 · a4.xml · nonDerivative · entry 1 BAILEY CLARK H · CIK 0001183331 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 160,392 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 · balance_after: This amount reflects the correction of a minor rounding error with respect to the number of shares of Iron Mountain Incorporated common stock ("Common Stock") acquired by the Reporting Person on November 4, 2014 as a result of the Reporting Person's receipt of his pro rata portion of the special distribution declared by the Board of Directors of Iron Mountain Incorporated on September 15, 2014 and paid on November 4, 2014 (the "Special Distribution"). Read SEC document |
| April 03, 2017 Filed Apr 5, 2017 21:01 UTC | IRON MOUNTAIN INC IRM · Entity 517 | GrantPhantom Stock · Derivative | 458.8685 | $35.19 | $16,148.82 |
DisclosureSEC source: 0001104659-17-021710 · a4.xml · derivative · entry 1 BAILEY CLARK H · CIK 0001183331 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 29,820.6073 Underlying: Common Stock · 458.8685 shares Expires not disclosed F1 · derivative.exercise_price: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F2 · shares: These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares. F1 · derivative.exercise_date: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F1 · derivative.expiration_date: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F2 · derivative.underlying_shares: These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares. Read SEC document |
| December 30, 2016 Filed Jan 4, 2017 22:23 UTC | IRON MOUNTAIN INC IRM · Entity 517 | GrantPhantom Stock · Derivative | 489.0068 | $32.47 | $15,879.81 |
DisclosureSEC source: 0001104659-17-000675 · a4.xml · derivative · entry 1 BAILEY CLARK H · CIK 0001183331 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 29,361.7388 Underlying: Common Stock · 489.0068 shares Expires not disclosed F1 · derivative.exercise_price: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F2 · shares: These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares. F1 · derivative.exercise_date: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F1 · derivative.expiration_date: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F2 · derivative.underlying_shares: These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares. Read SEC document |
| September 30, 2016 Filed Oct 4, 2016 21:38 UTC | IRON MOUNTAIN INC IRM · Entity 517 | GrantPhantom Stock · Derivative | 364.26 | $37.96 | $13,826.62 |
DisclosureSEC source: 0001104659-16-148666 · a4.xml · derivative · entry 1 BAILEY CLARK H · CIK 0001183331 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 28,872.732 Underlying: Common Stock · 364.26 shares Expires not disclosed F1 · derivative.exercise_price: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan (the "Plan"), the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F2 · shares: These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares. F1 · derivative.exercise_date: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan (the "Plan"), the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F1 · derivative.expiration_date: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan (the "Plan"), the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock. F2 · derivative.underlying_shares: These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares. 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.