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Iron Mountain Incorporated furnished materials related to its quarterly results. The company issued an earnings press release, a slide presentation, and supplemental financial information for the quarter ended September 30, 2025, and made them available under “Investors” on its website.
The materials are furnished, not filed, so they are not subject to Section 18 liability or automatically incorporated by reference. The exhibits are labeled 99.1 (press release), 99.2 (presentation), and 99.3 (supplemental data).
Iron Mountain (IRM) Form 4: EVP, GM Data Centers & ALM Mark Kidd exercised employee stock options and sold shares on 10/31/2025 under a Rule 10b5-1 plan. He exercised 7,306 options at $31.46 per share (code M) and sold 7,306 common shares at an average price of $100.82 (code S). Following these transactions, he directly owns 73,081 common shares. The reported option covered 7,306 underlying shares, was fully vested, carried a $31.46 exercise price, and shows 0 remaining after the exercise; its expiration date is 03/09/2026.
Iron Mountain (IRM): Notice of proposed insider sale under Form 144. William L. Meaney filed to sell up to 69,125 shares of IRM common stock on or about 11/03/2025 on the NYSE through Fidelity Brokerage Services LLC. The filing lists an aggregate market value of $7,086,003.75 for the planned sale and notes 295,348,225 shares outstanding.
The shares relate to an option granted on 02/18/2016, with cash payment dated 11/03/2025. Recent activity disclosed includes two sales over the past three months: 69,125 shares on 09/02/2025 for $6,191,090.76 and 69,125 shares on 10/01/2025 for $7,074,293.98.
A shareholder filed a Form 144 notice to sell 6,000 common shares through Fidelity Brokerage Services, reflecting an aggregate market value of $615,060, with an approximate sale date of November 3, 2025 on the NYSE.
The shares were acquired on March 1, 2025 via restricted stock vesting from the issuer as compensation. Over the prior three months, the filer (Mark Kidd) reported sales of 6,000 shares on September 2, 2025 for $546,300, 6,000 shares on October 1, 2025 for $609,780, and 7,306 shares on October 31, 2025 for $736,590.92.
Shares outstanding were reported at 295,348,225. The planned sales are a notice under Rule 144 and relate to secondary market transactions by the selling holder.
Iron Mountain (IRM) filed a Form 144 notice for the proposed sale of 7,306 common shares, with an aggregate market value of $736,590.92. The filing lists an approximate sale date of 10/31/2025 on the NYSE, with Fidelity Brokerage Services LLC as broker.
The shares relate to an “Option Granted – 03/09/2016,” with the acquisition and payment dates shown as 10/31/2025. The notice also reports 295,348,225 shares outstanding. Recent activity disclosed includes sales by Mark Kidd of 6,000 shares on 08/01/2025 (gross proceeds $583,200.00), 6,000 shares on 09/02/2025 (gross proceeds $546,300.00), and 6,000 shares on 10/01/2025 (gross proceeds $609,780.00).
Iron Mountain (IRM) reported an insider equity award. A director acquired 1,275 shares of common stock on 10/21/2025 via settlement of restricted stock units. The RSUs were granted on the same date and vested in full on the grant date. The transaction was coded “A” and carried a price of $0 per share. Following the transaction, beneficial ownership stands at 1,275 shares held directly.
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.