Iron Mountain Inc. (IRM)

A dash means the company reported no figure in that column; 0 means it reported zero. Figures are as printed in the filing, without adjustment.

Three-year trend — total compensation per named executive

Prior-year totals as disclosed in the corresponding proxy; deltas are computed values with the derivation shown in the register.

Every insider equity transaction reported on Form 4 after the 2025 proxy statement — acquisitions, dispositions, exercises, and withholdings — and therefore not reflected in any table in that document.

Transaction codes per Form 4: A acquisition · S open-market sale · F tax withholding · M option exercise · G gift. Value = shares × price as reported. Dividend-equivalent and fractional-share accrual rows (derivative Class A, under $10,000 and under 2,000 shares) are aggregated per date; every row appears in full below.

% performance-vested = PSU grant-date fair value ÷ (RSU + PSU + Options), a computed value with the derivation shown in the register.

Our executive compensation programs are designed to attract, retain and focus the talents and energies of our executives on meeting the current and future objectives of the Company and are guided by the following design principles

Rows are labeled by annual-meeting year, with the meeting date beside each; the vote held in a given year acts on the prior fiscal year's compensation.

Say-on-pay — history, company's computation

a. Approved under the standard stated in the filing — “Abstentions and broker non-votes will not be counted as votes cast and, therefore, will not affect the outcome of these proposals that are being submitted to the Company's stockholders at the Annual Meeting.”.

b. Approved under the standard stated in the filing — “Changes to the Proxy Statement On page 79, under the heading "VOTES REQUIRED," the description of the vote required for the approval of an amendment to the Iron Mountain Incorporated 2014 Stock and Cash Incentive Plan is amended and restated in its entirety by the following text: "Approval of an amendment to the Iron Mountain Incorporated 2014 Stock and Cash Incentive Plan, as described in this Proxy Statement, requires the affirmative vote a majority of the votes cast on the proposal." On page 30, under the heading "REQUIRED VOTE," the second and third sentences of the second paragraph thereunder are deleted, and accordingly, the second paragraph is amended and restated in its entirety by the following text: "For the purpose of determining whether a majority of the votes have been cast in favor of the approval of the Plan Amendment, only those cast 'For' or 'Against' are included, and any abstentions or broker non-votes will not count in making that determination." On page 31, under the heading "PURPOSE AND ELIGIBILITY," the end of the second paragraph thereunder is supplemented, and accordingly, beginning with the last sentence is amended and restated as follows: "At this time, we consider approximately 800 persons eligible to receive Awards pursuant to the 2014 Plan (approximately 791 employees (including 15 officers), 9 non-employee directors, and no consultants or advisors);”.

c. Approved under the standard stated in the filing — “Abstentions and broker non-votes will not be counted as votes cast for Proposals 1 ,3 and 4 and, therefore, will not affect the outcome of these proposals that are being submitted to the Company's stockholders at the Annual Meeting.”.

Approval percentages are the company's own reported computations under its own stated standard, not recomputed by Velarion. Where a company does not state a standard, none is assumed.

Computed as the sum of the director compensation table rows above; inputs and formula shown in the register.

The compensation peer group as the company disclosed it in its own proxy — the reference set behind the percentile above.

Of the companies Iron Mountain Inc. names as compensation peers, which name it back in their own disclosed peer groups. A peer set the market reciprocates reads differently from one selected in a single direction.

Reciprocity shown where the peer's own current proxy has been read — each mark is cited in the register to that peer's filing. A dash means the peer's current proxy was read and names no reciprocal group including Iron Mountain Inc..

Most recent fiscal-year chief executive compensation at each disclosed peer, taken from that company's own proxy statement.

Each peer's compensation is from its most recently filed proxy; fiscal years differ by company. Each peer's figures come from its own filings; the subject company is highlighted. Peers whose chief executive compensation is outside our coverage universe are stated as such, never left blank.

Read from each company's Compensation Discussion and Analysis: annual incentive payout as a percentage of target, the disclosed long-term vehicle mix, whether performance-share measures include a total shareholder return component, and the retained compensation consultant. “Not disclosed” appears only where the company's filing does not state the item.

Answers are drawn only from the figures disclosed in this brief and cited to their location in the source filing. Where a figure required for an answer is not disclosed, that is stated rather than estimated.

Each figure's location is given both for the eye (section · page · table · row · column) and for a script (table/row/column index and exact character span in the filed document). Any figure can be independently confirmed against the source.