SEC Form 4 · accession 0001020569-26-000061
IRON MOUNTAIN INC · IRM
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Theodore R. Samuels II
Director
Period of report
Jul 2, 2026
Accepted (ET)
Jul 6, 2026 · 4:34 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001020569
Table I — non-derivative securities
No Table I lines on this filing.
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Phantom StockF2,F1 | — | Jul 2, 2026 | A | 311 | A | — | — | Common Stock | 311 | 13,701 | D |
Explanation of responses
- F1Pursuant 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.
- F2These 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.