Matlock Robin 4
4 · IRON MOUNTAIN INC · Filed Jan 6, 2026
Insider Transaction Report
Form 4
Matlock Robin
Director
Transactions
- Exercise/Conversion
Common Stock, par value $.01 per share
2026-01-02+998→ 28,549 total - Exercise/Conversion
Phantom Stock
2026-01-02−998→ 0 total→ Common Stock (998 underlying)
Footnotes (2)
- [F1]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") on various dates selected by the Reporting Person or as otherwise provided in the Plan. Each Phantom Share is the economic equivalent of one share of Common Stock.
- [F2]Settlement of the Phantom Shares is in Common Stock.