Iron Mountain Incorporated filings document the regulatory record of an information management services company that operates as a REIT. Form 8-K reports furnish quarterly earnings releases, conference-call presentations and supplemental financial information covering storage rental revenue, service revenue, Adjusted EBITDA, AFFO and segment activity. Other event filings describe U.S. federal income tax considerations tied to REIT qualification and the acquisition, ownership and disposition of the company’s stock.
The filing record also covers governance and capital structure. Proxy materials address board and committee matters, executive compensation and equity-award disclosures. Material-event filings describe credit agreement amendments, incremental term loans, senior notes, revolving credit facility use, indenture terms and subsidiary-guarantor arrangements.
Simons Doyle reported acquisition or exercise transactions in this Form 4 filing.
IRON MOUNTAIN INC director Simons Doyle reported an award of 379.69 units of Phantom Stock on Common Stock, treated as a grant under the company’s Directors Deferred Compensation Plan. Each phantom share is economically equivalent to one share of common stock and will be settled in common shares after disability or when board service ends.
Following this award and related dividend-equivalent credits, the director now holds 45,873.936 phantom shares. The price used for the award is a weighted average of $103.52 per share, based on multiple transactions in a range from $103.45 to $103.54.
IRON MOUNTAIN INC director Theodore R. Samuels II reported awards of phantom stock under the company’s Directors Deferred Compensation Plan. He acquired 349.88 phantom shares based on quarterly cash board compensation and 92.27 phantom shares from dividends reinvested, all economically equivalent to common stock and payable in Iron Mountain common shares after disability or when his board service ends. Following these awards, his phantom stock balance rose to 11,498.41 units, reflecting routine, compensation-related accruals rather than open-market trading.
IRON MOUNTAIN INC President and CEO William L. Meaney exercised stock options and sold the resulting shares. He exercised options for 38,474 shares of common stock at $37.00 per share, then sold 38,474 shares in an open-market transaction at an average price of $102.71 per share. The transaction was made under a pre-arranged Rule 10b5-1 trading plan adopted on March 14, 2025. Following these transactions, filings show indirect holdings of 82,970 shares through the Meaney 2024 Master Trust and 212,680 shares through Meaney Master Trust #2, along with 307,792 stock options remaining from an option grant that was initially for 461,696 shares and is fully vested.
Iron Mountain Inc. executive Mark Kidd, EVP and GM of Data Centers & ALM, reported an open-market sale of 6,000 shares of Common Stock at $102.71 per share. The transaction was executed under a pre-arranged Rule 10b5-1 trading plan adopted on March 20, 2025.
After this sale, Kidd directly holds 125,507 Iron Mountain shares, indicating he retains a substantial equity position in the company while managing liquidity through a scheduled trading plan.
IRM reporting proposed and recent sales of Common Stock by William L. Meaney via a Form 144 notice. The excerpt lists a proposed sale of 38,474 shares (option granted 02/16/2017) slated for 04/01/2026, and multiple sales during the prior three months: 38,482 on 01/02/2026, 38,474 on 02/20/2026, and several March 2026 transactions including 137,133 on 03/02/2026 and repeated blocks of 98,659/98,657 on early March dates. Transactions are reported as cash sales on the NYSE.
Form 144 filing reporting insider dispositions of Common Stock. The filing lists three sales by Mark Kidd: 6,000 shares on 03/02/2026 for $643,620.00, 6,000 shares on 02/20/2026 for $649,020.00, and 6,000 shares on 01/02/2026 for $498,600.00. The record also shows restricted stock vesting entries dated 03/01/2024 (342 shares) and 02/23/2023 (5,658 shares) attributed to the issuer.
The Vanguard Group filed Amendment No. 12 to a Schedule 13G/A reporting its position in Iron Mountain Inc. The amendment states that following an internal realignment on January 12, 2026, certain subsidiaries will report separately and The Vanguard Group reports 0 shares beneficially owned, 0% of the class. The filing is signed by Ashley Grim on March 27, 2026.
Iron Mountain Incorporated is calling a virtual 2026 Annual Meeting of Stockholders on May 7, 2026 to vote on three key items: electing eleven directors, an advisory approval of executive pay, and ratifying Deloitte & Touche LLP as auditor for 2026.
The board highlights strong governance, with ten of eleven nominees independent, an independent chair, fully independent committees, stock ownership guidelines, an insider-trading and clawback policy, and proxy access. The board reports 55% overall diversity and ongoing refreshment, adding three new directors over the past three years.
Compensation is framed as pay-for-performance. Over the five years to December 31, 2025, Iron Mountain’s total shareholder return ranked in the 94th percentile of its compensation peer group, while CEO realizable pay was also at the 94th percentile. For 2025, revenue reached $6.9 billion, Adjusted EBITDA was $2.6 billion, and AFFO was $1.5 billion, all characterized as record results supporting the board’s case for its compensation program.
Iron Mountain Inc EVP Mithu Bhargava reported open-market sales of 59,725 shares of common stock on March 19, 2026. The shares were sold in multiple transactions at weighted-average prices generally between $103.62 and $105.56 per share. Following these sales, Bhargava directly owns 16,054 Iron Mountain shares. The filing notes that the transactions were executed under a pre-arranged Rule 10b5-1 trading plan adopted on December 19, 2025, indicating the sales were scheduled in advance rather than timed discretionarily.