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.
IRON MOUNTAIN INC President and CEO William L. Meaney reported selling a total of 98,657 shares of common stock in open-market transactions on March 5, 2026. The sales were executed in three tranches at weighted average prices of $105.26, $106.15, and $107.02, with each tranche consisting of multiple trades within stated price ranges. According to the filing, these transactions were made under a Rule 10b5-1 trading plan adopted on March 14, 2025.
Following the sales, his direct ownership fell to zero in the reported accounts, while indirect holdings are listed as 82,970 shares held by the Meaney 2024 Master Trust and 212,680 shares held by Meaney Master Trust #2.
Iron Mountain Incorporated filed a Form 8-K to provide an updated, detailed description of the U.S. federal income tax considerations related to its qualification and taxation as a real estate investment trust (REIT) and to the acquisition, ownership and sale of its stock.
The company furnished this tax discussion as Exhibit 99.1, together with a tax opinion and related consent from Sullivan & Worcester LLP. The new summary replaces and supersedes earlier tax descriptions wherever inconsistent, and confirms counsel’s opinion that Iron Mountain has qualified and is expected to continue to qualify for REIT status, subject to ongoing compliance with complex income, asset and distribution tests.
IRON MOUNTAIN INC President and CEO William L. Meaney reported open-market sales of 197,318 shares of common stock in multiple transactions on 2026-03-03 and 2026-03-04. The trades are reported at weighted average prices generally around $105–$108 per share.
The filing states these sales were made under a Rule 10b5-1 trading plan adopted on March 14, 2025. After the reported activity, Meaney continues to hold Iron Mountain shares both directly and indirectly through the Meaney 2024 Master Trust and Meaney Master Trust #2, which report holdings of 82,970 and 212,680 shares, respectively.
William L. Meaney reported proposed sales of common stock in a Form 144 notice. The filing lists multiple sale transactions by Mr. Meaney, including 38,482 shares on 01/02/2026 and 137,133 shares on 03/02/2026. The broker listed is Fidelity Brokerage Services LLC.
IRM affiliate filed a Form 144 reporting the proposed sale of 98,659 common shares. The notice cites these shares as resulting from 03/01/2026 restricted stock vesting tied to compensation. The filing also lists prior dispositions by the same affiliate totaling 314,748 common shares sold on 01/02/2026, 02/20/2026, 03/02/2026, and 03/03/2026.
Iron Mountain Inc.'s President and CEO William L. Meaney reported a mix of equity award vesting, option activity, and stock sales. He acquired 650,674 shares of common stock on March 1, 2026 through full vesting of previously granted performance units, with each performance unit representing one share of common stock, and 256,040 of those shares were withheld to cover income tax obligations rather than sold.
On March 1, 2026 he also received a grant of 74,069 employee stock options and exercised fully vested options representing 38,474 shares. On March 2, 2026 he sold an aggregate 137,133 shares of common stock in a series of open-market transactions at weighted-average prices between $106.65 and $110.81 per share under a Rule 10b5-1 trading plan adopted on March 14, 2025, and continued to hold a substantial direct and indirect stake afterward.
Iron Mountain Inc. executive Michelle Vervais Altamura, EVP, General Counsel and Secretary, reported several equity transactions dated March 1, 2026. The filing shows multiple tranches of restricted stock units (RSUs) vesting that were originally granted in 2023, 2024 and 2025, with each RSU representing a right to receive one share of common stock.
Upon vesting, corresponding shares of Iron Mountain common stock were issued to her. The company then withheld portions of these shares at a price of $108.33 per share to satisfy income tax withholding obligations related to the RSU net settlement, and the filing specifies that these withholdings do not represent open‑market sales.
Iron Mountain EVP Mithu Bhargava, head of the Digital Business Unit, reported multiple equity award vestings and related share movements on March 1, 2026. Performance units and restricted stock units converted into common stock, including blocks of 61,113 and 51,919 shares from performance units and several smaller RSU conversions.
The company withheld shares at $108.33 per share to cover income tax obligations tied to these vestings, which footnotes clarify do not represent open‑market sales. After all transactions, Bhargava directly owned 75,779 common shares, including 201 shares acquired through the employee stock purchase plan.
Iron Mountain senior vice president and chief accounting officer Daniel Borges reported multiple equity transactions tied to incentive awards. Performance units covering 9,152 shares fully vested and converted into common stock, and restricted stock units granted in 2023–2025 partially or fully vested, adding several hundred more shares. On the same date, he received a new grant of 1,104 restricted stock units that vest over three years. Shares totaling 3,106, 327, 212 and 184 were withheld at $108.33 per share to cover income tax obligations on these vestings, and are specifically described as not representing open‑market sales.