Iron Mountain SEC Filings

Iron Mountain Incorporated (IRM) reported a Section 16 update: a company director filed a Form 3 initial statement of beneficial ownership effective 10/21/2025. The filing indicates no securities are beneficially owned.

The submission was filed by one reporting person and confirms the director role, with no non-derivative or derivative holdings listed.

Iron Mountain Incorporated appointed Christie Kelly to its Board of Directors effective October 21, 2025, and named her to the Audit Committee. The company states there are no arrangements behind her election, no family relationships with directors or executives, and no transactions requiring disclosure under Item 404(a). Kelly is a three-time Fortune 500 CFO with prior CFO roles at Realty Income, Jones Lang LaSalle, and Duke Realty, and board experience at several public REITs. As a non-employee director, she will receive standard director compensation, including a prorated annual grant of RSUs under the 2014 Stock and Cash Incentive Plan that vest immediately upon grant.

Iron Mountain director reported acquisition of phantom stock tied to director compensation and deferred plan. The Form 4 shows that Doyle R. Simons, a director, acquired 333.553 Phantom Shares on 10/03/2025 at a weighted average equivalent price of $104.422 and an additional 331.138 Phantom Shares on 10/03/2025 at a weighted average equivalent price of $105.7. Each Phantom Share is the economic equivalent of one share of common stock and will be payable in shares upon the reporting person’s disability or cessation of director service under the Directors Deferred Compensation Plan. After these entries the filing shows beneficial ownership figures of 44,703.315 and 45,034.453 common shares following the respective transactions. The Form 4 was signed under power of attorney on 10/07/2025.

Theodore R. Samuels II, a director of Iron Mountain Incorporated (IRM), reported purchases of phantom stock under the company’s directors deferred compensation plan on 10/03/2025. Two issuances of Phantom Stock were recorded: 76.052 phantom shares (reflecting dividend reinvestment) at a weighted-average underlying price of $104.422, and 331.138 phantom shares (reflecting quarterly cash compensation reinvested) at a weighted-average underlying price of $105.7. After these transactions the reported beneficial ownership totals were 10,192.552 and 10,523.69 common-stock-equivalent shares, respectively. The Phantom Shares will convert to common stock upon the reporting person’s disability or cessation of director service.

Robin Matlock, a director of Iron Mountain Incorporated (IRM), reported a transaction dated 10/03/2025 under a director deferred compensation arrangement. The filing shows 7.446 phantom stock units were acquired and are economically equivalent to common shares that will be payable in stock per the plan. The report lists a weighted average price of $104.422, with underlying purchase prices in the range $104.349 to $104.524. Following the transaction the Reporting Person beneficially owned 998 shares of common stock directly. The filing was signed under power of attorney on 10/07/2025.

William L. Meaney, President and CEO and a director of Iron Mountain Incorporated (IRM), reported a series of transactions dated 10/01/2025 on a Form 4. The filing shows an exercise of employee stock options creating 69,125 shares at an exercise price of $36.588. The report also discloses sales of 29,063 shares at a weighted average of $101.985 and 40,062 shares at a weighted average of $102.599. Separately, 295,650 shares are reported as indirectly owned via a Grantor Retained Annuity Trust (transferred 11/29/2024) and noted as exempt from Section 16. The filing states the related stock option award is fully vested and represents rights to purchase a total of 829,506 shares.

Mark Kidd, an officer and director at Iron Mountain Inc. (IRM), reported a sale of 6,000 shares of the company's common stock on 10/01/2025 at a price of $101.63 per share. The Form 4 shows the sale was executed under a pre-established Rule 10b5-1 trading plan adopted on March 20, 2025. After the transaction, the reporting person beneficially owned 73,081 shares, held directly. The filing was signed under power of attorney on 10/03/2025. The form contains no derivative transactions or additional amendments.

Iron Mountain Inc. (IRM) filed a Form 144 reporting a proposed sale of 69,125 common shares through Fidelity Brokerage Services with an aggregate market value of $7,074,294.96, scheduled on 10/01/2025 on the NYSE. The filing states these shares were acquired by exercise of an option on the same date, citing an original grant date of 02/18/2016, and that payment will be made in cash. The notice also discloses three prior sales by the same person: 07/01/2025, 08/01/2025, and 09/02/2025, each of 69,125 shares, totaling 207,375 shares and gross proceeds of approximately $19,664,299.82. The filer affirms no undisclosed material adverse information and includes the required signature representations.

Form 144 notice for Iron Mountain Inc (IRM) records a proposed sale of 6,000 common shares via Fidelity Brokerage Services with an aggregate market value of $609,780 and an approximate sale date of 10/01/2025 on the NYSE. The shares were acquired by the seller on 03/01/2025 through restricted stock vesting and were granted as compensation. The filer reports total shares outstanding of 295,348,225. The filing also lists three prior sales by Mark Kidd during the past three months: 6,000 shares on 07/01/2025 for $612,120, 6,000 shares on 08/01/2025 for $583,200, and 6,000 shares on 09/02/2025 for $546,300. The notice includes the standard attestation that the seller does not possess undisclosed material adverse information.