Simons Doyle 4
4 · IRON MOUNTAIN INC · Filed Oct 7, 2025
Insider Transaction Report
Form 4
Simons Doyle
Director
Transactions
- Award
Phantom Stock
2025-10-03$105.70/sh+331.138$35,001→ 45,034.453 total→ Common Stock (331.138 underlying) - Award
Phantom Stock
2025-10-03$104.42/sh+333.553$34,830→ 44,703.315 total→ Common Stock (333.553 underlying)
Footnotes (5)
- [F1]Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock.
- [F2]These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares.
- [F3]The price reported in Column 8 is a weighted average price. These shares of Common Stock were acquired in multiple transactions at prices ranging from $104.349 to $104.524, 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 acquired at each separate price within the ranges set forth in this footnote (3).
- [F4]These shares give effect to the Reporting Person's quarterly cash compensation for services on the board of directors of the Company as if reinvested in Phantom Shares.
- [F5]The price reported in Column 8 is a weighted average price. These shares of Common Stock were acquired in multiple transactions at prices ranging from $105.569 to $105.819, 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 acquired at each separate price within the ranges set forth in this footnote (5).