filings.toolsItem 1. UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
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Item 1. UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 1 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
CONDENSED CONSOLIDATED BALANCE SHEETS
(IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA) (UNAUDITED)
| SEPTEMBER 30, 2025 | DECEMBER 31, 2024 | ||||||||||
| ASSETS | |||||||||||
| Current Assets: | |||||||||||
| Cash and cash equivalents | $ | 195,210 | $ | 155,716 | |||||||
| Accounts receivable (less allowances of $106,587 and $86,712 as of September 30, 2025 and December 31, 2024, respectively) | 1,371,367 | 1,291,379 | |||||||||
| Prepaid expenses and other | 314,293 | 244,127 | |||||||||
| Total Current Assets | 1,880,870 | 1,691,222 | |||||||||
| Property, Plant and Equipment: | |||||||||||
| Property, plant and equipment | 13,975,948 | 11,985,997 | |||||||||
| Less—Accumulated depreciation | (4,838,448) | (4,354,398) | |||||||||
| Property, Plant and Equipment, Net | 9,137,500 | 7,631,599 | |||||||||
| Other Assets, Net: | |||||||||||
| Goodwill | 5,269,541 | 5,083,817 | |||||||||
| Customer and supplier relationships and other intangible assets | 1,253,919 | 1,274,731 | |||||||||
| Operating lease right-of-use assets | 2,455,450 | 2,489,893 | |||||||||
| Other | 635,573 | 545,853 | |||||||||
| Total Other Assets, Net | 9,614,483 | 9,394,294 | |||||||||
| Total Assets | $ | 20,632,853 | $ | 18,717,115 | |||||||
| LIABILITIES AND EQUITY | |||||||||||
| Current Liabilities: | |||||||||||
| Current portion of long-term debt | $ | 699,320 | $ | 715,109 | |||||||
| Accounts payable | 658,138 | 678,716 | |||||||||
| Accrued expenses and other current liabilities (includes current portion of operating lease liabilities) | 1,151,107 | 1,366,568 | |||||||||
| Deferred revenue | 347,018 | 326,882 | |||||||||
| Total Current Liabilities | 2,855,583 | 3,087,275 | |||||||||
| Long-term Debt, net of current portion | 15,494,236 | 13,003,977 | |||||||||
| Long-term Operating Lease Liabilities, net of current portion | 2,283,504 | 2,334,826 | |||||||||
| Other Long-term Liabilities | 389,106 | 312,199 | |||||||||
| Deferred Income Taxes | 218,223 | 205,341 | |||||||||
| Commitments and Contingencies | |||||||||||
| Redeemable Noncontrolling Interests | 75,353 | 78,171 | |||||||||
| (Deficit) Equity: | |||||||||||
| Iron Mountain Incorporated Stockholders' (Deficit) Equity: | |||||||||||
| Preferred stock (par value $0.01; authorized 10,000,000 shares; none issued and outstanding) | — | — | |||||||||
| Common stock (par value $0.01; authorized 400,000,000 shares; issued and outstanding 295,504,799 and 293,592,637 shares as of September 30, 2025 and December 31, 2024, respectively) | 2,955 | 2,936 | |||||||||
| Additional paid-in capital | 4,730,575 | 4,647,330 | |||||||||
| (Distributions in excess of earnings) Earnings in excess of distributions | (5,236,868) | (4,583,436) | |||||||||
| Accumulated other comprehensive items, net | (378,624) | (569,952) | |||||||||
| Total Iron Mountain Incorporated Stockholders' (Deficit) Equity | (881,962) | (503,122) | |||||||||
| Noncontrolling Interests | 198,810 | 198,448 | |||||||||
| Total (Deficit) Equity | (683,152) | (304,674) | |||||||||
| Total Liabilities and (Deficit) Equity | $ | 20,632,853 | $ | 18,717,115 |
The accompanying notes are an integral part of these condensed consolidated financial statements.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 2 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(IN THOUSANDS, EXCEPT PER SHARE DATA) (UNAUDITED)
| THREE MONTHS ENDED SEPTEMBER 30, | |||||||||||
| 2025 | 2024 | ||||||||||
| Revenues: | |||||||||||
| Storage rental | $ | 1,032,897 | $ | 935,701 | |||||||
| Service | 721,196 | 621,657 | |||||||||
| Total Revenues | 1,754,093 | 1,557,358 | |||||||||
| Operating Expenses: | |||||||||||
| Cost of sales (excluding depreciation and amortization) | 791,939 | 678,390 | |||||||||
| Selling, general and administrative | 335,248 | 341,929 | |||||||||
| Depreciation and amortization | 262,203 | 232,240 | |||||||||
| Acquisition and Integration Costs | 5,402 | 11,262 | |||||||||
| Restructuring and other transformation | 47,346 | 37,282 | |||||||||
| Loss (gain) on disposal/write-down of property, plant and equipment, net | 3,366 | 5,091 | |||||||||
| Total Operating Expenses | 1,445,504 | 1,306,194 | |||||||||
| Operating Income (Loss) | 308,589 | 251,164 | |||||||||
| Interest Expense, Net (includes Interest Income of $8,061 and $949 for the three months ended September 30, 2025 and 2024, respectively) | 209,740 | 186,067 | |||||||||
| Other (Income) Expense, Net | (3,986) | 86,362 | |||||||||
| Net Income (Loss) Before Provision (Benefit) for Income Taxes | 102,835 | (21,265) | |||||||||
| Provision (Benefit) for Income Taxes | 16,594 | 12,400 | |||||||||
| Net Income (Loss) | 86,241 | (33,665) | |||||||||
| Less: Net Income (Loss) Attributable to Noncontrolling Interests | 1,951 | (45) | |||||||||
| Net Income (Loss) Attributable to Iron Mountain Incorporated | $ | 84,290 | $ | (33,620) | |||||||
| Net Income (Loss) Per Share Attributable to Iron Mountain Incorporated: | |||||||||||
| Basic | $ | 0.28 | $ | (0.11) | |||||||
| Diluted | $ | 0.28 | $ | (0.11) | |||||||
| Weighted Average Common Shares Outstanding—Basic | 295,771 | 293,603 | |||||||||
| Weighted Average Common Shares Outstanding—Diluted | 297,981 | 293,603 |
The accompanying notes are an integral part of these condensed consolidated financial statements.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 3 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(IN THOUSANDS, EXCEPT PER SHARE DATA) (UNAUDITED)
| NINE MONTHS ENDED SEPTEMBER 30, | |||||||||||
| 2025 | 2024 | ||||||||||
| Revenues: | |||||||||||
| Storage rental | $ | 2,991,262 | $ | 2,740,289 | |||||||
| Service | 2,067,308 | 1,828,341 | |||||||||
| Total Revenues | 5,058,570 | 4,568,630 | |||||||||
| Operating Expenses: | |||||||||||
| Cost of sales (excluding depreciation and amortization) | 2,256,980 | 2,007,616 | |||||||||
| Selling, general and administrative | 1,055,441 | 1,006,232 | |||||||||
| Depreciation and amortization | 746,923 | 666,296 | |||||||||
| Acquisition and Integration Costs | 16,040 | 28,573 | |||||||||
| Restructuring and other transformation | 152,432 | 124,562 | |||||||||
| Loss (gain) on disposal/write-down of property, plant and equipment, net | 7,975 | 8,270 | |||||||||
| Total Operating Expenses | 4,235,791 | 3,841,549 | |||||||||
| Operating Income (Loss) | 822,779 | 727,081 | |||||||||
| Interest Expense, Net (includes Interest Income of $15,966 and $4,374 for the nine months ended September 30, 2025 and 2024, respectively) | 609,541 | 527,107 | |||||||||
| Other Expense (Income), Net | 106,379 | 79,665 | |||||||||
| Net Income (Loss) Before Provision (Benefit) for Income Taxes | 106,859 | 120,309 | |||||||||
| Provision (Benefit) for Income Taxes | 47,725 | 42,328 | |||||||||
| Net Income (Loss) | 59,134 | 77,981 | |||||||||
| Less: Net Income (Loss) Attributable to Noncontrolling Interests | 3,813 | 1,757 | |||||||||
| Net Income (Loss) Attributable to Iron Mountain Incorporated | $ | 55,321 | $ | 76,224 | |||||||
| Net Income (Loss) Per Share Attributable to Iron Mountain Incorporated: | |||||||||||
| Basic | $ | 0.19 | $ | 0.26 | |||||||
| Diluted | $ | 0.19 | $ | 0.26 | |||||||
| Weighted Average Common Shares Outstanding—Basic | 295,214 | 293,229 | |||||||||
| Weighted Average Common Shares Outstanding—Diluted | 297,628 | 295,912 |
The accompanying notes are an integral part of these condensed consolidated financial statements.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 4 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
(IN THOUSANDS) (UNAUDITED)
| THREE MONTHS ENDED SEPTEMBER 30, | |||||||||||
| 2025 | 2024 | ||||||||||
| Net Income (Loss) | $ | 86,241 | $ | (33,665) | |||||||
| Other Comprehensive (Loss) Income: | |||||||||||
| Foreign Currency Translation Adjustment | (15,178) | 107,282 | |||||||||
| Change in Fair Value of Interest Rate Swaps | (72) | (34,281) | |||||||||
| Total Other Comprehensive (Loss) Income | (15,250) | 73,001 | |||||||||
| Comprehensive Income (Loss) | 70,991 | 39,336 | |||||||||
| Comprehensive Income (Loss) Attributable to Noncontrolling Interests | 1,742 | 376 | |||||||||
| Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated | $ | 69,249 | $ | 38,960 |
| NINE MONTHS ENDED SEPTEMBER 30, | |||||||||||
| 2025 | 2024 | ||||||||||
| Net Income (Loss) | $ | 59,134 | $ | 77,981 | |||||||
| Other Comprehensive Income (Loss): | |||||||||||
| Foreign Currency Translation Adjustment | 199,630 | 8,434 | |||||||||
| Change in Fair Value of Interest Rate Swaps | (8,090) | (23,381) | |||||||||
| Reclassifications from Accumulated Other Comprehensive Items, net | — | (2,528) | |||||||||
| Total Other Comprehensive Income (Loss) | 191,540 | (17,475) | |||||||||
| Comprehensive Income (Loss) | 250,674 | 60,506 | |||||||||
| Comprehensive Income (Loss) Attributable to Noncontrolling Interests | 4,025 | 1,637 | |||||||||
| Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated | $ | 246,649 | $ | 58,869 |
The accompanying notes are an integral part of these condensed consolidated financial statements.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 5 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
CONDENSED CONSOLIDATED STATEMENTS OF (DEFICIT) EQUITY
(IN THOUSANDS, EXCEPT SHARE DATA) (UNAUDITED)
| THREE MONTHS ENDED SEPTEMBER 30, 2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||
| IRON MOUNTAIN INCORPORATED STOCKHOLDERS' (DEFICIT) EQUITY | ||||||||||||||||||||||||||||||||||||||||||||||||||
| COMMON STOCK | ADDITIONAL PAID-IN CAPITAL | (DISTRIBUTIONS IN EXCESS OF EARNINGS) EARNINGS IN EXCESS OF DISTRIBUTIONS | ACCUMULATED OTHER COMPREHENSIVE ITEMS, NET | NONCONTROLLING INTERESTS | REDEEMABLE NONCONTROLLING INTERESTS | |||||||||||||||||||||||||||||||||||||||||||||
| TOTAL | SHARES | AMOUNTS | ||||||||||||||||||||||||||||||||||||||||||||||||
| Balance, June 30, 2025 | $ | (568,867) | 295,271,945 | $ | 2,953 | $ | 4,680,581 | $ | (5,087,387) | $ | (363,583) | $ | 198,569 | $ | 76,852 | |||||||||||||||||||||||||||||||||||
| Issuance and net settlement of shares under employee stock purchase and option plans and stock-based compensation | 49,996 | 232,854 | 2 | 49,994 | — | — | — | — | ||||||||||||||||||||||||||||||||||||||||||
| Parent cash dividends declared | (233,771) | — | — | — | (233,771) | — | — | — | ||||||||||||||||||||||||||||||||||||||||||
| Other comprehensive (loss) income | (15,041) | — | — | — | — | (15,041) | — | (209) | ||||||||||||||||||||||||||||||||||||||||||
| Net income (loss) | 86,862 | — | — | — | 84,290 | — | 2,572 | (621) | ||||||||||||||||||||||||||||||||||||||||||
| Noncontrolling interests dividends | (2,331) | — | — | — | — | — | (2,331) | (669) | ||||||||||||||||||||||||||||||||||||||||||
| Balance, September 30, 2025 | $ | (683,152) | 295,504,799 | $ | 2,955 | $ | 4,730,575 | $ | (5,236,868) | $ | (378,624) | $ | 198,810 | $ | 75,353 | |||||||||||||||||||||||||||||||||||
| NINE MONTHS ENDED SEPTEMBER 30, 2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||
| IRON MOUNTAIN INCORPORATED STOCKHOLDERS' (DEFICIT) EQUITY | ||||||||||||||||||||||||||||||||||||||||||||||||||
| COMMON STOCK | ADDITIONAL PAID-IN CAPITAL | (DISTRIBUTIONS IN EXCESS OF EARNINGS) EARNINGS IN EXCESS OF DISTRIBUTIONS | ACCUMULATED OTHER COMPREHENSIVE ITEMS, NET | NONCONTROLLING INTERESTS | REDEEMABLE NONCONTROLLING INTERESTS | |||||||||||||||||||||||||||||||||||||||||||||
| TOTAL | SHARES | AMOUNTS | ||||||||||||||||||||||||||||||||||||||||||||||||
| Balance, December 31, 2024 | $ | (304,674) | 293,592,637 | $ | 2,936 | $ | 4,647,330 | $ | (4,583,436) | $ | (569,952) | $ | 198,448 | $ | 78,171 | |||||||||||||||||||||||||||||||||||
| Issuance and net settlement of shares under employee stock purchase and option plans and stock-based compensation | 83,324 | 1,912,162 | 19 | 83,305 | — | — | — | — | ||||||||||||||||||||||||||||||||||||||||||
| Parent cash dividends declared | (708,753) | — | — | — | (708,753) | — | — | — | ||||||||||||||||||||||||||||||||||||||||||
| Other comprehensive income (loss) | 191,328 | — | — | — | — | 191,328 | — | 212 | ||||||||||||||||||||||||||||||||||||||||||
| Net income (loss) | 60,196 | — | — | — | 55,321 | — | 4,875 | (1,062) | ||||||||||||||||||||||||||||||||||||||||||
| Noncontrolling interests equity contributions | (60) | — | — | (60) | — | — | — | — | ||||||||||||||||||||||||||||||||||||||||||
| Noncontrolling interests dividends | (4,513) | — | — | — | — | — | (4,513) | (1,968) | ||||||||||||||||||||||||||||||||||||||||||
| Balance, September 30, 2025 | $ | (683,152) | 295,504,799 | $ | 2,955 | $ | 4,730,575 | $ | (5,236,868) | $ | (378,624) | $ | 198,810 | $ | 75,353 |
The accompanying notes are an integral part of these condensed consolidated financial statements.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 6 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
CONDENSED CONSOLIDATED STATEMENTS OF (DEFICIT) EQUITY
(IN THOUSANDS, EXCEPT SHARE DATA) (UNAUDITED)
| THREE MONTHS ENDED SEPTEMBER 30, 2024 | ||||||||||||||||||||||||||||||||||||||||||||||||||
| IRON MOUNTAIN INCORPORATED STOCKHOLDERS' (DEFICIT) EQUITY | ||||||||||||||||||||||||||||||||||||||||||||||||||
| COMMON STOCK | ADDITIONAL PAID-IN CAPITAL | (DISTRIBUTIONS IN EXCESS OF EARNINGS) EARNINGS IN EXCESS OF DISTRIBUTIONS | ACCUMULATED OTHER COMPREHENSIVE ITEMS, NET | NONCONTROLLING INTERESTS | REDEEMABLE NONCONTROLLING INTERESTS | |||||||||||||||||||||||||||||||||||||||||||||
| TOTAL | SHARES | AMOUNTS | ||||||||||||||||||||||||||||||||||||||||||||||||
| Balance, June 30, 2024 | $ | (132,749) | 293,298,465 | $ | 2,933 | $ | 4,555,883 | $ | (4,230,599) | $ | (461,091) | $ | 125 | $ | 184,861 | |||||||||||||||||||||||||||||||||||
| Issuance and net settlement of shares under employee stock purchase and option plans and stock-based compensation | 32,928 | 126,800 | 1 | 32,927 | — | — | — | — | ||||||||||||||||||||||||||||||||||||||||||
| Changes in equity related to redeemable noncontrolling interests | (1,036) | — | — | (54,446) | — | — | 53,410 | (113,964) | ||||||||||||||||||||||||||||||||||||||||||
| Parent cash dividends declared | (211,463) | — | — | — | (211,463) | — | — | — | ||||||||||||||||||||||||||||||||||||||||||
| Other comprehensive income (loss) | 72,580 | — | — | — | — | 72,580 | — | 421 | ||||||||||||||||||||||||||||||||||||||||||
| Net (loss) income | (33,620) | — | — | — | (33,620) | — | — | (45) | ||||||||||||||||||||||||||||||||||||||||||
| Noncontrolling interests equity contributions and related costs | 170,952 | — | — | 67,882 | — | — | 103,070 | — | ||||||||||||||||||||||||||||||||||||||||||
| Noncontrolling interests dividends | — | — | — | — | — | — | — | (736) | ||||||||||||||||||||||||||||||||||||||||||
| Balance, September 30, 2024 | $ | (102,408) | 293,425,265 | $ | 2,934 | $ | 4,602,246 | $ | (4,475,682) | $ | (388,511) | $ | 156,605 | $ | 70,537 | |||||||||||||||||||||||||||||||||||
| NINE MONTHS ENDED SEPTEMBER 30, 2024 | ||||||||||||||||||||||||||||||||||||||||||||||||||
| IRON MOUNTAIN INCORPORATED STOCKHOLDERS' (DEFICIT) EQUITY | ||||||||||||||||||||||||||||||||||||||||||||||||||
| COMMON STOCK | ADDITIONAL PAID-IN CAPITAL | (DISTRIBUTIONS IN EXCESS OF EARNINGS) EARNINGS IN EXCESS OF DISTRIBUTIONS | ACCUMULATED OTHER COMPREHENSIVE ITEMS, NET | NONCONTROLLING INTERESTS | REDEEMABLE NONCONTROLLING INTERESTS | |||||||||||||||||||||||||||||||||||||||||||||
| TOTAL | SHARES | AMOUNTS | ||||||||||||||||||||||||||||||||||||||||||||||||
| Balance, December 31, 2023 | $ | 211,773 | 292,142,739 | $ | 2,921 | $ | 4,533,691 | $ | (3,953,808) | $ | (371,156) | $ | 125 | $ | 177,947 | |||||||||||||||||||||||||||||||||||
| Issuance and net settlement of shares under employee stock purchase and option plans and stock-based compensation | 54,710 | 1,282,526 | 13 | 54,697 | — | — | — | — | ||||||||||||||||||||||||||||||||||||||||||
| Changes in equity related to redeemable noncontrolling interests | (614) | — | — | (54,024) | — | — | 53,410 | (107,102) | ||||||||||||||||||||||||||||||||||||||||||
| Parent cash dividends declared | (598,098) | — | — | — | (598,098) | — | — | — | ||||||||||||||||||||||||||||||||||||||||||
| Other comprehensive (loss) income | (17,355) | — | — | — | — | (17,355) | — | (120) | ||||||||||||||||||||||||||||||||||||||||||
| Net income (loss) | 76,224 | — | — | — | 76,224 | — | — | 1,757 | ||||||||||||||||||||||||||||||||||||||||||
| Noncontrolling interests equity contributions and related costs | 170,952 | — | — | 67,882 | — | — | 103,070 | — | ||||||||||||||||||||||||||||||||||||||||||
| Noncontrolling interests dividends | — | — | — | — | — | — | — | (1,945) | ||||||||||||||||||||||||||||||||||||||||||
| Balance, September 30, 2024 | $ | (102,408) | 293,425,265 | $ | 2,934 | $ | 4,602,246 | $ | (4,475,682) | $ | (388,511) | $ | 156,605 | $ | 70,537 |
The accompanying notes are an integral part of these condensed consolidated financial statements.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 7 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(IN THOUSANDS) (UNAUDITED)
| NINE MONTHS ENDED SEPTEMBER 30, | |||||||||||
| 2025 | 2024 | ||||||||||
| Cash Flows from Operating Activities: | |||||||||||
| Net Income (Loss) | $ | 59,134 | $ | 77,981 | |||||||
| Adjustments to reconcile net income (loss) to cash flows from operating activities: | |||||||||||
| Depreciation | 532,468 | 466,905 | |||||||||
| Amortization (includes amortization of deferred financing costs and discounts of $24,419 and $18,909 for the nine months ended September 30, 2025 and 2024, respectively) | 238,874 | 218,300 | |||||||||
| Revenue reduction associated with amortization of customer inducements and above- and below-market leases | 4,468 | 4,117 | |||||||||
| Stock-based compensation expense | 118,595 | 73,491 | |||||||||
| (Benefit) provision for deferred income taxes | (9,767) | (9,012) | |||||||||
| Loss on early extinguishment of debt | — | 5,417 | |||||||||
| Loss (gain) on disposal/write-down of property, plant and equipment, net | 7,975 | 8,270 | |||||||||
| Foreign currency transactions and other, net | 47,117 | 100,436 | |||||||||
| (Increase) decrease in assets | (155,859) | (45,677) | |||||||||
| (Decrease) increase in liabilities | (3,004) | (135,100) | |||||||||
| Cash Flows from Operating Activities | 840,001 | 765,128 | |||||||||
| Cash Flows from Investing Activities: | |||||||||||
| Capital expenditures | (1,755,383) | (1,173,968) | |||||||||
| Cash paid for acquisitions, net of cash acquired | (101,625) | (174,445) | |||||||||
| Acquisition of customer intangibles | (21,204) | (5,820) | |||||||||
| Contract costs | (59,607) | (84,112) | |||||||||
| Investments in joint ventures and other investments, net | (43,309) | (9,834) | |||||||||
| Proceeds from sales of property and equipment and other, net | 12,869 | 6,350 | |||||||||
| Cash Flows from Investing Activities | (1,968,259) | (1,441,829) | |||||||||
| Cash Flows from Financing Activities: | |||||||||||
| Repayment of revolving credit facility, term loan facilities and other debt | (12,747,897) | (8,974,574) | |||||||||
| Proceeds from revolving credit facility, term loan facilities and other debt | 13,546,589 | 10,247,884 | |||||||||
| Net proceeds from sale of senior note | 1,390,651 | — | |||||||||
| Equity contributions from noncontrolling interests | — | 178,616 | |||||||||
| Equity distributions to noncontrolling interests | (6,481) | (1,945) | |||||||||
| Repurchase of noncontrolling interest | — | (35,203) | |||||||||
| Parent cash dividends | (687,204) | (579,494) | |||||||||
| Payment of deferred purchase obligations and other deferred payments | (240,217) | (158,677) | |||||||||
| Net (payments) proceeds associated with employee stock-based awards | (46,415) | (18,781) | |||||||||
| Other, net | (7,831) | (18,625) | |||||||||
| Cash Flows from Financing Activities | 1,201,195 | 639,201 | |||||||||
| Effect of Exchange Rates on Cash and Cash Equivalents | (33,443) | (16,774) | |||||||||
| Increase (Decrease) in Cash and Cash Equivalents | 39,494 | (54,274) | |||||||||
| Cash and Cash Equivalents, Beginning of Period | 155,716 | 222,789 | |||||||||
| Cash and Cash Equivalents, End of Period | $ | 195,210 | $ | 168,515 | |||||||
| Supplemental Information: | |||||||||||
| Cash Paid for Interest | $ | 711,517 | $ | 644,301 | |||||||
| Cash Paid for Income Taxes, Net | $ | 89,828 | $ | 68,135 | |||||||
| Non-Cash Investing and Financing Activities: | |||||||||||
| Financing Leases and Other | $ | 193,047 | $ | 129,109 | |||||||
| Accrued Capital Expenditures | $ | 247,224 | $ | 241,240 | |||||||
| Deferred Purchase Obligations and Other Deferred Payments | $ | 28,137 | $ | 260,813 | |||||||
| Dividends Payable | $ | 244,198 | $ | 220,996 |
The accompanying notes are an integral part of these condensed consolidated financial statements.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 8 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data) (Unaudited)
1. GENERAL
The unaudited condensed consolidated financial statements of Iron Mountain Incorporated, a Delaware corporation, and its subsidiaries ("we" or "us"), have been prepared pursuant to the rules and regulations of the United States Securities and Exchange Commission (the "SEC"). Certain information and footnote disclosures normally included in the annual financial statements prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") have been omitted pursuant to those rules and regulations, but we believe that the disclosures included herein are adequate to make the information presented not misleading. The interim condensed consolidated financial statements are presented herein and, in the opinion of management, reflect all adjustments of a normal recurring nature necessary for a fair presentation. Interim results are not necessarily indicative of results for a full year.
The Condensed Consolidated Financial Statements and Notes thereto, which are included herein, should be read in conjunction with the Consolidated Financial Statements and Notes thereto for the year ended December 31, 2024 included in our Annual Report on Form 10-K filed with the SEC on February 14, 2025 (our "Annual Report").
In September 2022, we announced a global program designed to accelerate the growth of our business ("Project Matterhorn"). See Note 10.
We have been organized and have operated as a real estate investment trust for United States federal income tax purposes beginning with our taxable year ended December 31, 2014.
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
A. CASH AND CASH EQUIVALENTS
Cash and cash equivalents include cash on hand and cash invested in highly liquid short-term securities, which have remaining maturities at the date of purchase of less than 90 days. Cash and cash equivalents are carried at cost, which approximates fair value.
B. ACCOUNTS RECEIVABLE
We maintain an allowance for doubtful accounts and a credit memo reserve for estimated losses resulting from the potential inability of our customers to make required payments and potential disputes regarding billing and service issues. The rollforward of the allowance for doubtful accounts and credit memo reserves for the nine months ended September 30, 2025 is as follows:
| Balance as of December 31, 2024 | $ | 86,712 | ||||||||||||
| Credit memos charged to revenue | 73,715 | |||||||||||||
| Allowance for bad debts charged to expense | 43,527 | |||||||||||||
| Deductions and other(1) | (97,367) | |||||||||||||
| Balance as of September 30, 2025 | $ | 106,587 |
(1)Primarily consists of the issuance of credit memos, the write-off of accounts receivable and the impact associated with currency translation adjustments.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 9 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
C. LEASES
We lease facilities for certain warehouses, data centers and office space. We also have land leases, including those on which certain facilities are located.
Operating and financing lease right-of-use assets and lease liabilities as of September 30, 2025 and December 31, 2024 are as follows:
| DESCRIPTION | SEPTEMBER 30, 2025 | DECEMBER 31, 2024 | |||||||||
| Assets: | |||||||||||
| Operating lease right-of-use assets | $ | 2,455,450 | $ | 2,489,893 | |||||||
| Financing lease right-of-use assets, net of accumulated depreciation(1) | 462,504 | 359,265 | |||||||||
| Liabilities: | |||||||||||
| Current | |||||||||||
| Operating lease liabilities | $ | 326,320 | $ | 315,400 | |||||||
| Financing lease liabilities(1) | 54,123 | 128,397 | |||||||||
| Long-term | |||||||||||
| Operating lease liabilities | $ | 2,283,504 | $ | 2,334,826 | |||||||
| Financing lease liabilities(1) | 461,446 | 278,444 |
(1)Financing lease right-of-use assets, current financing lease liabilities and long-term financing lease liabilities are included within Property, plant and equipment, net, Current portion of long-term debt and Long-term debt, net of current portion, respectively, within our Condensed Consolidated Balance Sheets.
The components of the lease expense for the three and nine months ended September 30, 2025 and 2024 are as follows:
| THREE MONTHS ENDED SEPTEMBER 30, | NINE MONTHS ENDED SEPTEMBER 30, | ||||||||||||||||||||||
| DESCRIPTION | 2025 | 2024 | 2025 | 2024 | |||||||||||||||||||
| Operating lease cost(1) | $ | 176,591 | $ | 168,308 | $ | 529,730 | $ | 512,789 | |||||||||||||||
| Financing lease cost: | |||||||||||||||||||||||
| Depreciation of financing lease right-of-use assets | $ | 16,737 | $ | 13,907 | $ | 45,715 | $ | 36,929 | |||||||||||||||
| Interest expense for financing lease liabilities | 6,994 | 5,593 | 20,448 | 16,031 |
(1)Operating lease cost, the majority of which is included in Cost of sales, includes variable lease costs of $46,221 and $139,887 for the three and nine months ended September 30, 2025, respectively, and $42,785 and $120,473 for the three and nine months ended September 30, 2024, respectively.
Other information: Supplemental cash flow information relating to our leases for the nine months ended September 30, 2025 and 2024 is as follows:
| NINE MONTHS ENDED SEPTEMBER 30, | |||||||||||
| CASH PAID FOR AMOUNTS INCLUDED IN MEASUREMENT OF LEASE LIABILITIES: | 2025 | 2024 | |||||||||
| Operating cash flows used in operating leases | $ | 371,753 | $ | 355,509 | |||||||
| Operating cash flows used in financing leases (interest) | 20,448 | 16,031 | |||||||||
| Financing cash flows used in financing leases | 41,478 | 41,079 | |||||||||
| NON-CASH ITEMS: | |||||||||||
| Operating lease modifications and reassessments | $ | (10,137) | $ | 9,536 | |||||||
| New operating leases (including acquisitions) | 189,005 | 97,708 |
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 10 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
D. GOODWILL
Our reporting units as of December 31, 2024 are described in detail in Note 2.l. to Notes to Consolidated Financial Statements included in our Annual Report.
The changes in the carrying value of goodwill attributable to each reportable segment and Corporate and Other (as defined in Note 8) for the nine months ended September 30, 2025 are as follows:
| GLOBAL RIM BUSINESS | GLOBAL DATA CENTER BUSINESS | CORPORATE AND OTHER | TOTAL CONSOLIDATED | ||||||||||||||||||||||||||
| Goodwill balance, net of accumulated amortization, as of December 31, 2024 | $ | 3,816,874 | $ | 469,461 | $ | 797,482 | $ | 5,083,817 | |||||||||||||||||||||
| Tax deductible goodwill acquired during the period | — | — | 17,620 | 17,620 | |||||||||||||||||||||||||
| Non-tax deductible goodwill acquired during the period | 38,775 | — | 13,171 | 51,946 | |||||||||||||||||||||||||
| Fair value and other adjustments | — | — | (1,464) | (1,464) | |||||||||||||||||||||||||
| Currency effects | 100,136 | 13,997 | 3,489 | 117,622 | |||||||||||||||||||||||||
| Goodwill balance, net of accumulated amortization, as of September 30, 2025 | $ | 3,955,785 | $ | 483,458 | $ | 830,298 | $ | 5,269,541 | |||||||||||||||||||||
| Accumulated goodwill impairment balance as of September 30, 2025 | $ | 132,409 | $ | — | $ | 26,011 | $ | 158,420 |
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 11 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
E. FAIR VALUE MEASUREMENTS
The assets and liabilities carried at fair value and measured on a recurring basis as of September 30, 2025 and December 31, 2024 are as follows:
| FAIR VALUE MEASUREMENTS AS OF SEPTEMBER 30, 2025 USING | |||||||||||||||||||||||
| DESCRIPTION | TOTAL CARRYING VALUE AS OF SEPTEMBER 30, 2025 | QUOTED PRICES IN ACTIVE MARKETS (LEVEL 1) | SIGNIFICANT OTHER OBSERVABLE INPUTS (LEVEL 2) | SIGNIFICANT UNOBSERVABLE INPUTS (LEVEL 3)****(2) | |||||||||||||||||||
| Money Market Funds | $ | 5,125 | $ | — | $ | 5,125 | $ | — | |||||||||||||||
| Time Deposits | 4,272 | — | 4,272 | — | |||||||||||||||||||
| Trading Securities | 7,814 | 6,010 | 1,804 | — | |||||||||||||||||||
| Derivative Assets | 243 | — | 243 | — | |||||||||||||||||||
| Derivative Liabilities | 68,230 | — | 68,230 | — | |||||||||||||||||||
| Deferred Purchase Obligations(1) | 114,578 | — | — | 114,578 |
| FAIR VALUE MEASUREMENTS AS OF DECEMBER 31, 2024 USING | |||||||||||||||||||||||
| DESCRIPTION | TOTAL CARRYING VALUE AS OF DECEMBER 31, 2024 | QUOTED PRICES IN ACTIVE MARKETS (LEVEL 1) | SIGNIFICANT OTHER OBSERVABLE INPUTS (LEVEL 2) | SIGNIFICANT UNOBSERVABLE INPUTS (LEVEL 3)****(2) | |||||||||||||||||||
| Money Market Funds | $ | 2,488 | $ | — | $ | 2,488 | $ | — | |||||||||||||||
| Time Deposits | 9,612 | — | 9,612 | — | |||||||||||||||||||
| Trading Securities | 8,144 | 6,390 | 1,754 | — | |||||||||||||||||||
| Derivative Assets | 28,092 | — | 28,092 | — | |||||||||||||||||||
| Derivative Liabilities | 5,326 | — | 5,326 | — | |||||||||||||||||||
| Deferred Purchase Obligations(1) | 147,055 | — | — | 147,055 |
(1)The balance as of September 30, 2025 primarily relates to the fair value of the deferred purchase obligation associated with the Regency Transaction (as defined in Note 3 to Notes to Consolidated Financial Statements included in our Annual Report). The balance as of December 31, 2024 primarily relates to the fair values of the deferred purchase obligations associated with the Regency Transaction and ITRenew Transaction (as defined in Note 3 to Notes to Consolidated Financial Statements included in our Annual Report).
(2)The following is a rollforward of the Level 3 liabilities presented above for December 31, 2024 through September 30, 2025:
| Balance as of December 31, 2024 | $ | 147,055 | ||||||||||||||||||
| Additions | 16,626 | |||||||||||||||||||
| Payments | (49,215) | |||||||||||||||||||
| Other changes, including accretion | 112 | |||||||||||||||||||
| Balance as of September 30, 2025 | $ | 114,578 |
The level 3 valuation of the deferred purchase obligation was determined primarily utilizing a Monte-Carlo model which takes into account our forecasted projections as they relate to the underlying performance of the business. The Monte-Carlo simulation model incorporates assumptions as to expected revenue over the achievement period, including adjustments for volatility and timing, as well as discount rates that account for the risk of the arrangement and overall market risks. Any material change to these assumptions may result in a significantly higher or lower fair value of the deferred purchase obligation.
There were no material items that were measured at fair value on a non-recurring basis as of September 30, 2025 and December 31, 2024 other than those disclosed in Note 2.p. to Notes to Consolidated Financial Statements included in our Annual Report.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 12 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
F. ACCUMULATED OTHER COMPREHENSIVE ITEMS, NET
The changes in Accumulated other comprehensive items, net for the three and nine months ended September 30, 2025 and 2024 are as follows:
| THREE MONTHS ENDED SEPTEMBER 30, 2025 | THREE MONTHS ENDED SEPTEMBER 30, 2024 | ||||||||||||||||||||||||||||||||||
| FOREIGN CURRENCY TRANSLATION AND OTHER ADJUSTMENTS | DERIVATIVE FINANCIAL INSTRUMENTS | TOTAL | FOREIGN CURRENCY TRANSLATION AND OTHER ADJUSTMENTS | DERIVATIVE FINANCIAL INSTRUMENTS | TOTAL | ||||||||||||||||||||||||||||||
| Beginning of Period | $ | (353,742) | $ | (9,841) | $ | (363,583) | $ | (471,935) | $ | 10,844 | $ | (461,091) | |||||||||||||||||||||||
| Other comprehensive (loss) income: | |||||||||||||||||||||||||||||||||||
| Foreign currency translation and other adjustments | (14,969) | — | (14,969) | 106,861 | — | 106,861 | |||||||||||||||||||||||||||||
| Change in fair value of interest rate swaps | — | (72) | (72) | — | (34,281) | (34,281) | |||||||||||||||||||||||||||||
| Total other comprehensive (loss) income | (14,969) | (72) | (15,041) | 106,861 | (34,281) | 72,580 | |||||||||||||||||||||||||||||
| End of Period | $ | (368,711) | $ | (9,913) | $ | (378,624) | $ | (365,074) | $ | (23,437) | $ | (388,511) |
| NINE MONTHS ENDED SEPTEMBER 30, 2025 | NINE MONTHS ENDED SEPTEMBER 30, 2024 | ||||||||||||||||||||||||||||||||||
| FOREIGN CURRENCY TRANSLATION AND OTHER ADJUSTMENTS | DERIVATIVE FINANCIAL INSTRUMENTS | TOTAL | FOREIGN CURRENCY TRANSLATION AND OTHER ADJUSTMENTS | DERIVATIVE FINANCIAL INSTRUMENTS | TOTAL | ||||||||||||||||||||||||||||||
| Beginning of Period | $ | (568,129) | $ | (1,823) | $ | (569,952) | $ | (373,628) | $ | 2,472 | $ | (371,156) | |||||||||||||||||||||||
| Other comprehensive income (loss): | |||||||||||||||||||||||||||||||||||
| Foreign currency translation and other adjustments | 199,418 | — | 199,418 | 8,554 | — | 8,554 | |||||||||||||||||||||||||||||
| Change in fair value of interest rate swaps | — | (8,090) | (8,090) | — | (23,381) | (23,381) | |||||||||||||||||||||||||||||
| Reclassifications from accumulated other comprehensive items, net | — | — | — | — | (2,528) | (2,528) | |||||||||||||||||||||||||||||
| Total other comprehensive income (loss) | 199,418 | (8,090) | 191,328 | 8,554 | (25,909) | (17,355) | |||||||||||||||||||||||||||||
| End of Period | $ | (368,711) | $ | (9,913) | $ | (378,624) | $ | (365,074) | $ | (23,437) | $ | (388,511) |
G. REVENUES
Certain costs to fulfill or obtain customer contracts, including the costs associated with the initial movement of customer records into physical storage and certain commission expenses, and certain initial direct costs of obtaining data center leases are collectively referred to as "Contract Costs". Contract Costs are primarily made up of Intake Costs and Commissions (each as defined in Note 2.s. to Notes to Consolidated Financial Statements included in our Annual Report). Contract Costs as of September 30, 2025 and December 31, 2024 are as follows:
| SEPTEMBER 30, 2025 | DECEMBER 31, 2024 | ||||||||||||||||||||||||||||||||||
| DESCRIPTION | GROSS CARRYING AMOUNT | ACCUMULATED AMORTIZATION | NET CARRYING AMOUNT | GROSS CARRYING AMOUNT | ACCUMULATED AMORTIZATION | NET CARRYING AMOUNT | |||||||||||||||||||||||||||||
| Intake Costs asset | $ | 108,962 | $ | (54,780) | $ | 54,182 | $ | 89,057 | $ | (43,783) | $ | 45,274 | |||||||||||||||||||||||
| Commissions asset | 229,940 | (101,172) | 128,768 | 200,149 | (78,955) | 121,194 |
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 13 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
Deferred revenue liabilities are reflected in our Condensed Consolidated Balance Sheets as follows:
| DESCRIPTION | LOCATION IN BALANCE SHEET | SEPTEMBER 30, 2025 | DECEMBER 31, 2024**(1)** | |||||||||||
| Deferred revenue—Current(2) | Deferred revenue | $ | 347,018 | $ | 326,882 | |||||||||
| Deferred revenue—Long-term(3) | Other Long-term Liabilities | 142,364 | 110,601 |
(1) The beginning balance of current and long-term deferred revenue for the year ended December 31, 2024 was $325,665 and $100,770, respectively.
(2) The current deferred revenue accounted for under Accounting Standards Codification 842, Leases ("ASC 842") is approximately $46,500 and $25,500 as of September 30, 2025 and December 31, 2024, respectively.
(3) The long-term deferred revenue accounted for under ASC 842 is approximately $119,500 and $95,000 as of September 30, 2025 and December 31, 2024, respectively.
DATA CENTER LESSOR CONSIDERATIONS
Our Global Data Center Business features storage rental provided to customers at contractually specified rates over a fixed contractual period, which are accounted for in accordance with ASC 842. Storage rental revenue associated with our Global Data Center Business for the three and nine months ended September 30, 2025 and 2024 is as follows:
| THREE MONTHS ENDED SEPTEMBER 30, | NINE MONTHS ENDED SEPTEMBER 30, | ||||||||||||||||||||||
| 2025 | 2024 | 2025 | 2024 | ||||||||||||||||||||
| Storage rental revenue | $ | 201,383 | $ | 150,796 | $ | 562,607 | $ | 438,221 |
H. STOCK-BASED COMPENSATION
Our stock-based compensation expense includes the cost of stock options, restricted stock units ("RSUs") and performance units ("PUs") (together, the "Employee Stock-Based Awards").
STOCK-BASED COMPENSATION EXPENSE
Stock-based compensation expense for the Employee Stock-Based Awards for the three and nine months ended September 30, 2025 and 2024 is as follows:
| THREE MONTHS ENDED SEPTEMBER 30, | NINE MONTHS ENDED SEPTEMBER 30, | ||||||||||||||||||||||||||||||||||
| 2025 | 2024 | 2025 | 2024 | ||||||||||||||||||||||||||||||||
| Stock-based compensation expense | $ | 32,147 | $ | 29,563 | $ | 118,595 | $ | 73,491 | |||||||||||||||||||||||||||
On March 1, 2025, we granted approximately 83,400 stock options, 497,000 RSUs and 435,100 PUs under the 2014 Plan (as defined in Note 2.t. to Notes to Consolidated Financial Statements included in our Annual Report).
On May 29, 2025, our stockholders approved an amendment to the 2014 Plan, which (i) increases the number of shares of common stock authorized for issuance under the 2014 Plan by 4,600,000, from 20,750,000 to 25,350,000, and (ii) extends the termination date of the 2014 Plan from May 12, 2031 to May 29, 2035.
As of September 30, 2025, unrecognized compensation cost related to the unvested portion of our Employee Stock-Based Awards, inclusive of our estimated achievement of the performance metrics, is $106,527.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 14 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
I. ACQUISITION AND INTEGRATION COSTS
Acquisition and integration costs represent operating expenditures directly associated with the closing and integration activities of our business acquisitions that have closed, or are highly probable of closing, and include (i) advisory, legal and professional fees to complete business acquisitions and (ii) costs to integrate acquired businesses into our existing operations, including move, severance and system integration costs (collectively, "Acquisition and Integration Costs").
Acquisition and Integration Costs for the three and nine months ended September 30, 2025 and 2024 are as follows:
| THREE MONTHS ENDED SEPTEMBER 30, | NINE MONTHS ENDED SEPTEMBER 30, | ||||||||||||||||||||||
| 2025 | 2024 | 2025 | 2024 | ||||||||||||||||||||
| Acquisition and Integration Costs | $ | 5,402 | $ | 11,262 | $ | 16,040 | $ | 28,573 | |||||||||||||||
J. LOSS (GAIN) ON DISPOSAL/WRITE-DOWN OF PROPERTY, PLANT AND EQUIPMENT, NET
Loss (gain) on disposal/write-down of property, plant and equipment, net for the three and nine months ended September 30, 2025 and 2024 is as follows:
| THREE MONTHS ENDED SEPTEMBER 30, | NINE MONTHS ENDED SEPTEMBER 30, | ||||||||||||||||||||||
| 2025 | 2024 | 2025 | 2024 | ||||||||||||||||||||
| Loss (gain) on disposal/write-down of property, plant and equipment, net | $ | 3,366 | $ | 5,091 | $ | 7,975 | $ | 8,270 |
K. OTHER (INCOME) EXPENSE, NET
Other (income) expense, net for the three and nine months ended September 30, 2025 and 2024 consists of the following:
| THREE MONTHS ENDED SEPTEMBER 30, | NINE MONTHS ENDED SEPTEMBER 30, | ||||||||||||||||||||||
| DESCRIPTION | 2025 | 2024 | 2025 | 2024 | |||||||||||||||||||
| Foreign currency transaction (gains) losses, net(1) | $ | (7,203) | $ | 46,657 | $ | 109,615 | $ | 31,291 | |||||||||||||||
| Debt extinguishment expense | — | 5,417 | — | 5,417 | |||||||||||||||||||
| Other, net(2) | 3,217 | 34,288 | (3,236) | 42,957 | |||||||||||||||||||
| Other (Income) Expense, Net | $ | (3,986) | $ | 86,362 | $ | 106,379 | $ | 79,665 |
(1)The losses for the nine months ended September 30, 2025 and the three and nine months ended September 30, 2024 primarily consist of the impact of changes in the exchange rate of the British pound sterling and the Euro against the United States dollar on our intercompany balances with and between certain of our subsidiaries.
(2)Other, net for the three and nine months ended September 30, 2024 primarily consists of approximately $29,200 in charges associated with the agreement to purchase the remaining interest in the Web Werks JV (as defined in Note 3 to Notes to Consolidated Financial Statements included in our Annual Report) as well as losses on our equity method investments and the change in value of our deferred purchase obligations.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 15 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
L. INCOME TAXES
We provide for income taxes during interim periods based on our estimate of the effective tax rate for the year. Our effective tax rates for the three and nine months ended September 30, 2025 and 2024 are as follows:
| THREE MONTHS ENDED SEPTEMBER 30, | NINE MONTHS ENDED SEPTEMBER 30, | ||||||||||||||||||||||||||||||||||
| 2025**(1)** | 2024**(3)** | 2025**(2)** | 2024**(3)** | ||||||||||||||||||||||||||||||||
| Effective Tax Rate | 16.1 | % | 58.3 | % | 44.7 | % | 35.2 | % | |||||||||||||||||||||||||||
(1)The primary reconciling items between the federal statutory tax rate of 21.0% and our overall effective tax rate for the three months ended September 30, 2025 were the benefits derived from the dividends paid deduction, as well as the differences in the tax rates to which our foreign earnings are subject.
(2)The primary reconciling items between the federal statutory tax rate of 21.0% and our overall effective tax rate for the nine months ended September 30, 2025 were the (i) lack of tax benefits recognized for the foreign exchange losses we recorded in Other expense (income), net, during the period, (ii) lack of tax benefits recognized for the year to date ordinary losses of certain entities, (iii) disallowed interest expenses of certain entities and (iv) differences in the tax rates to which our foreign earnings are subject, partially offset by (v) benefits derived from the dividends paid deduction.
(3)The primary reconciling items between the federal statutory tax rate of 21.0% and our overall effective tax rate for the three and nine months ended September 30, 2024 were the (i) lack of tax benefits recognized for the year to date ordinary losses of certain entities, (ii) benefits derived from the dividends paid deduction and (iii) differences in the tax rates to which our foreign earnings are subject. In addition, we recorded gains and losses in Other expense (income), net during the period, for which there was no tax impact.
On July 4, 2025, President Trump signed into law the reconciliation bill, commonly referred to as the One Big Beautiful Bill Act ("OBBBA"). The OBBBA introduces several changes to U.S. federal income tax law, such as suspending the capitalization and amortization of domestic research and development expenditures and reinstating bonus depreciation. It also modifies the deductions available for global intangible low-taxed income from non-U.S. subsidiaries and changes the limitations on deductible interest. Under the current law, not more than 20% of the value of a REIT’s total assets at the end of any quarter could be represented by securities of one or more taxable REIT subsidiaries; the OBBBA increases this threshold to 25% effective January 1, 2026. The effective dates of the OBBBA provisions range from 2025 through 2027. We do not expect the OBBBA provisions to have a material impact on our consolidated financial statements.
In addition, in connection with the removal of the proposed section 899, "Enforcement of Remedies Against Unfair Foreign Taxes," from the OBBBA, the U.S. Treasury Department reached an agreement with the six other G7 countries (Canada, France, Germany, Italy, Japan and the UK) under which U.S. companies will be excluded from the imposition of any Pillar Two Income Inclusion Rule or Undertaxed Profits Rule taxes. We will continue to monitor the global legislative actions as well as administrative guidance related to Pillar Two for potential impacts, which are not expected to have a material impact on our consolidated financial statements.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 16 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
M. INCOME (LOSS) PER SHARE—BASIC AND DILUTED
The calculations of basic and diluted income (loss) per share for the three and nine months ended September 30, 2025 and 2024 are as follows:
| THREE MONTHS ENDED SEPTEMBER 30, | NINE MONTHS ENDED SEPTEMBER 30, | ||||||||||||||||||||||
| 2025 | 2024 | 2025 | 2024 | ||||||||||||||||||||
| Net Income (Loss) | $ | 86,241 | $ | (33,665) | $ | 59,134 | $ | 77,981 | |||||||||||||||
| Less: Net Income (Loss) Attributable to Noncontrolling Interests | 1,951 | (45) | 3,813 | 1,757 | |||||||||||||||||||
| Net Income (Loss) Attributable to Iron Mountain Incorporated (utilized in numerator of Earnings Per Share calculation) | $ | 84,290 | $ | (33,620) | $ | 55,321 | $ | 76,224 | |||||||||||||||
| Weighted-average shares—basic | 295,771,000 | 293,603,000 | 295,214,000 | 293,229,000 | |||||||||||||||||||
| Effect of dilutive potential stock options | 1,898,000 | — | 2,020,000 | 2,143,000 | |||||||||||||||||||
| Effect of dilutive potential RSUs and PUs | 312,000 | — | 394,000 | 540,000 | |||||||||||||||||||
| Weighted-average shares—diluted | 297,981,000 | 293,603,000 | 297,628,000 | 295,912,000 | |||||||||||||||||||
| Net Income (Loss) Per Share Attributable to Iron Mountain Incorporated: | |||||||||||||||||||||||
| Basic | $ | 0.28 | $ | (0.11) | $ | 0.19 | $ | 0.26 | |||||||||||||||
| Diluted | $ | 0.28 | $ | (0.11) | $ | 0.19 | $ | 0.26 | |||||||||||||||
| Antidilutive stock options, RSUs and PUs excluded from the calculation | 102,248 | 3,083,222 | 112,101 | 293,457 |
3. INVESTMENTS
Our joint venture with AGC Equity Partners (the "Frankfurt JV") is accounted for as an equity method investment and is presented as a component of Other within Other assets, net in our Condensed Consolidated Balance Sheets. The carrying value and equity interest in the unconsolidated Frankfurt JV as of September 30, 2025 and December 31, 2024 are as follows:
| SEPTEMBER 30, 2025 | DECEMBER 31, 2024 | ||||||||||||||||||||||
| CARRYING VALUE | EQUITY INTEREST | CARRYING VALUE | EQUITY INTEREST | ||||||||||||||||||||
| Frankfurt JV | $ | 86,093 | 20 | % | $ | 61,075 | 20 | % |
4. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES
Derivative instruments we are party to include: (i) interest rate swap agreements (which are designated as cash flow hedges) and (ii) cross-currency swap agreements (which are designated as net investment hedges).
INTEREST RATE SWAP AGREEMENTS DESIGNATED AS CASH FLOW HEDGES
We utilize interest rate swap agreements designated as cash flow hedges to limit our exposure to changes in interest rates on a portion of our floating rate indebtedness. Certain of our interest rate swap agreements have notional amounts that will increase with the underlying hedged transaction. Under our interest rate swap agreements, we receive variable rate interest payments associated with the notional amount of each interest rate swap, based upon the one-month Secured Overnight Financing Rate ("SOFR"), in exchange for the payment of fixed interest rates as specified in the interest rate swap agreements. Our interest rate swap agreements are marked to market at the end of each reporting period, representing the fair values of the interest rate swap agreements, and any changes in fair value are recognized as a component of Accumulated other comprehensive items, net. Unrealized gains are recognized as assets, while unrealized losses are recognized as liabilities.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 17 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
4. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (CONTINUED)
As of September 30, 2025 and December 31, 2024, we have approximately $1,787,000 and $1,482,000, respectively, in notional value outstanding on our interest rate swap agreements. As of September 30, 2025, our interest rate swap agreements have maturity dates ranging from October 2025 through May 2027.
CROSS-CURRENCY SWAP AGREEMENTS DESIGNATED AS NET INVESTMENT HEDGES
We utilize cross-currency swaps to hedge the variability of exchange rate impacts between the United States dollar and certain of our foreign functional currencies, including the Euro and the Canadian dollar. As of September 30, 2025, our cross-currency swap agreements have maturity dates ranging from February 2026 through November 2026.
The notional values of our cross-currency swaps, by hedged currency, as of September 30, 2025 and December 31, 2024, are as follows:
| SEPTEMBER 30, 2025 | DECEMBER 31, 2024 | ||||||||||
| Euro | $ | 509,187 | $ | 509,187 | |||||||
| Canadian dollar | 350,000 | 350,000 | |||||||||
| $ | 859,187 | $ | 859,187 |
We have designated these cross-currency swap agreements as hedges of net investments in our Euro and Canadian dollar denominated subsidiaries, and they require an exchange of the notional amounts at maturity. These cross-currency swap agreements are marked to market at the end of each reporting period, representing the fair values of the cross-currency swap agreements, and any changes in fair value are recognized as a component of Accumulated other comprehensive items, net. Unrealized gains are recognized as assets, while unrealized losses are recognized as liabilities. The excluded component of our cross-currency swap agreements is recorded in Accumulated other comprehensive items, net and amortized to interest expense on a straight-line basis.
The fair values of derivative instruments recognized in our Condensed Consolidated Balance Sheets as of September 30, 2025 and December 31, 2024, by derivative instrument, are as follows:
| SEPTEMBER 30, 2025 | DECEMBER 31, 2024 | ||||||||||||||||||||||
| DERIVATIVE INSTRUMENTS**(1)** | ASSETS | LIABILITIES | ASSETS | LIABILITIES | |||||||||||||||||||
| Cash Flow Hedges*(2)* | |||||||||||||||||||||||
| Interest rate swap agreements | $ | 243 | $ | (11,772) | $ | 1,887 | $ | (5,326) | |||||||||||||||
| Net Investment Hedges*(3)* | |||||||||||||||||||||||
| Cross-currency swap agreements | — | (56,458) | 26,205 | — |
(1)Our derivative assets are included as a component of (i) Prepaid expenses and other or (ii) Other within Other assets, net and our derivative liabilities are included as a component of (i) Accrued expenses and other current liabilities or (ii) Other long-term liabilities in our Condensed Consolidated Balance Sheets. As of September 30, 2025, $243 is included within Prepaid expenses and other, $55,681 is included within Accrued expenses and other current liabilities and $12,549 is included within Other long-term liabilities. As of December 31, 2024, $8,891 is included within Prepaid expenses and other, $19,201 is included within Other assets, and $5,326 is included within Other long-term liabilities.
(2)As of September 30, 2025, cumulative net losses recorded within Accumulated other comprehensive items, net associated with our interest rate swap agreements are $9,913.
(3)As of September 30, 2025, cumulative net gains recorded within Accumulated other comprehensive items, net associated with our cross-currency swap agreements are $2,973, which includes cumulative net gains of $59,431 related to the excluded component of our cross-currency swap agreements.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 18 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
4. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (CONTINUED)
Unrealized (losses) gains recognized in Accumulated other comprehensive items, net during the three and nine months ended September 30, 2025 and 2024, by derivative instrument, are as follows:
| THREE MONTHS ENDED SEPTEMBER 30, | NINE MONTHS ENDED SEPTEMBER 30, | ||||||||||||||||||||||
| DERIVATIVE INSTRUMENTS | 2025 | 2024 | 2025 | 2024 | |||||||||||||||||||
| Cash Flow Hedges | |||||||||||||||||||||||
| Interest rate swap agreements | $ | (72) | $ | (34,281) | $ | (8,090) | $ | (23,381) | |||||||||||||||
| Net Investment Hedges | |||||||||||||||||||||||
| Cross-currency swap agreements | 8,416 | (18,480) | (82,663) | (7,033) | |||||||||||||||||||
| Cross-currency swap agreements (excluded component) | 4,176 | 4,176 | 12,529 | 12,529 |
(Losses) gains recognized in Net income (loss) during the three and nine months ended September 30, 2025 and 2024, by derivative instrument, are as follows:
| LOCATION OF (LOSS) GAIN | THREE MONTHS ENDED SEPTEMBER 30, | NINE MONTHS ENDED SEPTEMBER 30, | ||||||||||||||||||||||||
| DERIVATIVE INSTRUMENTS | 2025 | 2024 | 2025 | 2024 | ||||||||||||||||||||||
| Cash Flow Hedges | ||||||||||||||||||||||||||
| Interest rate swap agreements | Interest expense | $ | — | $ | — | $ | — | $ | 2,528 | |||||||||||||||||
| Net Investment Hedges | ||||||||||||||||||||||||||
| Cross-currency swap agreements (excluded component) | Interest expense | (4,176) | (4,176) | (12,529) | (12,529) |
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 19 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
5. DEBT
Long-term debt is as follows:
| SEPTEMBER 30, 2025 | DECEMBER 31, 2024 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| DEBT (INCLUSIVE OF DISCOUNT) | UNAMORTIZED DEFERRED FINANCING COSTS | CARRYING AMOUNT | FAIR VALUE | DEBT (INCLUSIVE OF DISCOUNT) | UNAMORTIZED DEFERRED FINANCING COSTS | CARRYING AMOUNT | FAIR VALUE | ||||||||||||||||||||||||||||||||||||||||||||||
| Revolving Credit Facility(1) | $ | 233,000 | $ | (8,691) | $ | 224,309 | $ | 233,000 | $ | 121,000 | $ | (9,253) | $ | 111,747 | $ | 121,000 | |||||||||||||||||||||||||||||||||||||
| Term Loan A(1) | 493,750 | — | 493,750 | 493,750 | 216,016 | — | 216,016 | 216,016 | |||||||||||||||||||||||||||||||||||||||||||||
| Term Loan B(1) | 1,827,457 | (12,864) | 1,814,593 | 1,836,678 | 1,840,181 | (14,690) | 1,825,491 | 1,850,698 | |||||||||||||||||||||||||||||||||||||||||||||
| Virginia 3 Term Loans(2) | 271,079 | (1,634) | 269,445 | 271,079 | 271,079 | (3,013) | 268,066 | 271,079 | |||||||||||||||||||||||||||||||||||||||||||||
| Virginia 4/5 Term Loans(2) | 204,987 | (277) | 204,710 | 204,987 | 76,535 | (2,752) | 73,783 | 76,535 | |||||||||||||||||||||||||||||||||||||||||||||
| Virginia 6 Term Loans(2) | 210,000 | (3,126) | 206,874 | 210,000 | 137,495 | (4,605) | 132,890 | 137,495 | |||||||||||||||||||||||||||||||||||||||||||||
| Virginia 7 Term Loans(2) | 239,595 | (5,167) | 234,428 | 239,595 | 32,074 | (7,591) | 24,483 | 32,074 | |||||||||||||||||||||||||||||||||||||||||||||
| Australian Dollar Term Loan(2) | 260,778 | (1,989) | 258,789 | 262,606 | 175,813 | (265) | 175,548 | 176,655 | |||||||||||||||||||||||||||||||||||||||||||||
| UK Revolving Credit Facility | 188,186 | (2,458) | 185,728 | 188,186 | 175,503 | (1,034) | 174,469 | 175,503 | |||||||||||||||||||||||||||||||||||||||||||||
| GBP Notes(2) | 537,674 | (85) | 537,589 | 534,986 | 501,437 | (789) | 500,648 | 490,155 | |||||||||||||||||||||||||||||||||||||||||||||
| 47/8% Notes due 2027(2)(3) | 1,000,000 | (2,844) | 997,156 | 995,000 | 1,000,000 | (3,910) | 996,090 | 972,500 | |||||||||||||||||||||||||||||||||||||||||||||
| 51/4% Notes due 2028(2)(3) | 825,000 | (2,952) | 822,048 | 821,906 | 825,000 | (3,838) | 821,162 | 804,375 | |||||||||||||||||||||||||||||||||||||||||||||
| 5% Notes due 2028(2)(3) | 500,000 | (2,050) | 497,950 | 496,250 | 500,000 | (2,592) | 497,408 | 481,250 | |||||||||||||||||||||||||||||||||||||||||||||
| 7% Notes due 2029(2)(3) | 1,000,000 | (7,091) | 992,909 | 1,028,750 | 1,000,000 | (8,686) | 991,314 | 1,020,000 | |||||||||||||||||||||||||||||||||||||||||||||
| 47/8% Notes due 2029(2)(3) | 1,000,000 | (5,786) | 994,214 | 983,750 | 1,000,000 | (6,871) | 993,129 | 945,000 | |||||||||||||||||||||||||||||||||||||||||||||
| 51/4% Notes due 2030(2)(3) | 1,300,000 | (7,270) | 1,292,730 | 1,283,750 | 1,300,000 | (8,399) | 1,291,601 | 1,235,000 | |||||||||||||||||||||||||||||||||||||||||||||
| 41/2% Notes(2)(3) | 1,100,000 | (6,741) | 1,093,259 | 1,050,500 | 1,100,000 | (7,674) | 1,092,326 | 1,001,000 | |||||||||||||||||||||||||||||||||||||||||||||
| 5% Notes due 2032(2) | 750,000 | (8,921) | 741,079 | 720,938 | 750,000 | (9,900) | 740,100 | 688,125 | |||||||||||||||||||||||||||||||||||||||||||||
| 55/8% Notes(2)(3) | 600,000 | (3,969) | 596,031 | 596,250 | 600,000 | (4,404) | 595,596 | 570,000 | |||||||||||||||||||||||||||||||||||||||||||||
| 61/4% Notes(2)(3) | 1,200,000 | (13,202) | 1,186,798 | 1,222,500 | 1,200,000 | (14,517) | 1,185,483 | 1,194,000 | |||||||||||||||||||||||||||||||||||||||||||||
| 43/4% Euro Senior Notes due 2034 (the "Euro Notes")(3)(4) | 1,408,423 | (17,205) | 1,391,218 | 1,410,184 | — | — | — | — | |||||||||||||||||||||||||||||||||||||||||||||
| Real Estate Mortgages, Financing Lease Liabilities and Other | 760,040 | (1,624) | 758,416 | 760,040 | 614,231 | (1,825) | 612,406 | 614,231 | |||||||||||||||||||||||||||||||||||||||||||||
| Accounts Receivable Securitization Program | 400,000 | (467) | 399,533 | 400,000 | 400,000 | (670) | 399,330 | 400,000 | |||||||||||||||||||||||||||||||||||||||||||||
| Total Long-term Debt | 16,309,969 | (116,413) | 16,193,556 | 13,836,364 | (117,278) | 13,719,086 | |||||||||||||||||||||||||||||||||||||||||||||||
| Less Current Portion | (699,320) | — | (699,320) | (715,109) | — | (715,109) | |||||||||||||||||||||||||||||||||||||||||||||||
| Long-term Debt, Net of Current Portion | $ | 15,610,649 | $ | (116,413) | $ | 15,494,236 | $ | 13,121,255 | $ | (117,278) | $ | 13,003,977 |
(1)Collectively, the "Credit Agreement". The Credit Agreement consists of a revolving credit facility (the "Revolving Credit Facility"), a term loan A facility (the "Term Loan A") and a term loan B facility (the "Term Loan B"). The remaining amount available for borrowing under the Revolving Credit Facility as of September 30, 2025 was $2,504,559 (which represents the maximum availability as of such date). The weighted average interest rate in effect under the Revolving Credit Facility was 6.0% as of September 30, 2025.
(2)Each as defined in Note 7 to Notes to Consolidated Financial Statements included in our Annual Report.
(3)Collectively, the "Parent Notes". Iron Mountain Incorporated ("IMI") is the direct obligor on the Parent Notes, which are fully and unconditionally guaranteed, on a senior basis, by the Note Guarantors. These guarantees are joint and several obligations of the Note Guarantors. The remainder of our subsidiaries do not guarantee the Parent Notes.
(4)The fair value (Level 2 of the fair value hierarchy described in Note 2.p. to Notes to Consolidated Financial Statements included in our Annual Report) of this debt instrument is based on a quoted market price for comparable notes on September 30, 2025.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 20 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
5. DEBT (CONTINUED)
See Note 7 to Notes to Consolidated Financial Statements included in our Annual Report for additional information regarding our long-term debt, including the direct obligors of each of our debt instruments as well as information regarding the fair value of our debt instruments (including the levels of the fair value hierarchy used to determine the fair value of our debt instruments, which are consistent with the levels of the fair value hierarchy used to determine the fair value of our debt as of September 30, 2025).
CREDIT AGREEMENT
On June 18, 2025, we amended the Credit Agreement, which resulted in an increase in the principal amount of the Term Loan A from $218,750 to $500,000. Quarterly principal payments of approximately $6,250 on the Term Loan A commenced in September 2025. All other material terms remain the same as disclosed in Note 7 to Notes to Consolidated Financial Statements included in our Annual Report.
AUSTRALIAN DOLLAR TERM LOAN
On June 25, 2025, Iron Mountain Australia Group Pty, Ltd., a wholly owned subsidiary of IMI, amended its AUD Term Loan, which resulted in:
-
an extension of the maturity date from September 30, 2026 to September 30, 2030,
-
an increase in the original principal amount from 350,000 Australian dollars to 400,000 Australian dollars and
-
a decrease in the interest rate from BBSY (an Australian benchmark variable interest rate) plus 3.625% to BBSY plus 3.500%.
| The amended loan was issued at 99.5% of par. Principal payments on the AUD Term Loan are to be paid in quarterly installments in an aggregate amount of 10,000 Australian dollars per year, with the remaining balance due September 2030. As of September 30, 2025, we had 397,500 Australian dollars (or $262,606, based upon the exchange rate between the United States dollar and the Australian dollar as of September 30, 2025) outstanding on the AUD Term Loan and the interest rate in effect under the AUD Term Loan was 7.2%. All other material terms of the AUD Term Loan remain the same as disclosed in Note 7 to Notes to Consolidated Financial Statements included in our Annual Report. | OUTSTANDING BORROWINGS AU$397,500 7.2% Interest Rate As of September 30, 2025 | |||||||||||||
UK REVOLVING CREDIT FACILITY
| Iron Mountain (UK) PLC and Iron Mountain (UK) Data Centre Limited, wholly owned subsidiaries of IMI (collectively, the "UK Borrowers"), have a British pounds sterling Revolving Credit Facility (the "UK Revolving Credit Facility"). The maximum amount permitted to be borrowed under the UK Revolving Credit Facility is 140,000 British pounds sterling, which was fully drawn as of September 30, 2025. We have the option to request additional commitments of up to 125,000 British pounds sterling, subject to conditions specified in the UK Revolving Credit Facility. On July 11, 2025, the UK Borrowers amended the UK Revolving Credit Facility to extend the maturity date from September 24, 2026 to September 24, 2028. As of September 30, 2025, the interest rate in effect under the UK Revolving Credit Facility was 6.1%. All other material terms of the UK Revolving Credit Facility remain consistent with what was disclosed in Note 7 to Notes to Consolidated Financial Statements included in our Annual Report. | MAXIMUM AMOUNT £140,000 OPTIONAL ADDITIONAL COMMITMENTS £125,000 6.1% Interest Rate As of September 30, 2025 |
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 21 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
5. DEBT (CONTINUED)
SEPTEMBER 2025 OFFERING
On September 10, 2025, IMI completed a private offering of:
| SERIES OF NOTES | AGGREGATE PRINCIPAL AMOUNT | MATURITY DATE | INTEREST PAYMENT DUE | PAR CALL DATE**(1)** | ||||||||||
| Euro Notes | € | 1,200,000 | January 15, 2034 | January 15 and July 15 | September 10, 2028 |
(1)We may redeem the Euro Notes at any time, at our option, in whole or in part. Prior to the par call date, we may redeem the Euro Notes at the redemption price or make-whole premium specified in the indenture governing the Euro Notes, together with accrued and unpaid interest to, but excluding, the redemption date. On or after the par call date, we may redeem the Euro Notes at a price equal to 100% of the principal amount being redeemed, together with accrued and unpaid interest to, but excluding, the redemption date.
The Euro Notes were issued at par and have a contractual interest rate of 4.75%. The total net proceeds from the issuance, after deducting the initial purchasers' commissions, of approximately 1,188,000 Euros (or $1,390,651, based upon the exchange rate between the Euro and the United States dollar on September 10, 2025 (the settlement date for the Euro Notes)), were used to repay a portion of the outstanding borrowings under the Revolving Credit Facility and will be used to repay the GBP Notes in the fourth quarter of 2025. As of September 30, 2025, we had 1,200,000 Euros (or $1,408,423, based upon the exchange rate between the United States dollar and the Euro as of September 30, 2025) outstanding on the Euro Notes.
LETTERS OF CREDIT
As of September 30, 2025, we have outstanding letters of credit totaling $75,835, of which $12,441 reduce our borrowing capacity under the Revolving Credit Facility. The letters of credit expire at various dates between October 2025 and May 2027.
DEBT COVENANTS
The Credit Agreement, our bond indentures and other agreements governing our indebtedness contain certain restrictive financial and operating covenants, including covenants that restrict our ability to complete acquisitions, pay cash dividends, incur indebtedness, make investments, sell assets and take other specified corporate actions. The covenants do not contain a rating trigger. Therefore, a change in our debt rating would not trigger a default under the Credit Agreement, our bond indentures or other agreements governing our indebtedness. The Credit Agreement requires that we satisfy a net total lease adjusted leverage ratio and a fixed charge coverage ratio on a quarterly basis, and our bond indentures require that, among other things, we satisfy a leverage ratio (not lease adjusted) or a fixed charge coverage ratio (not lease adjusted) as a condition to taking actions such as paying dividends and incurring indebtedness.
The Credit Agreement uses earnings before interest, taxes, depreciation and amortization and rent expense ("EBITDAR")-based calculations and the bond indentures use earnings before interest, taxes, depreciation and amortization ("EBITDA")-based calculations as the primary measures of financial performance for purposes of calculating leverage and fixed charge coverage ratios. The EBITDAR- and EBITDA-based leverage calculations include our consolidated subsidiaries, other than those we have designated as "Unrestricted Subsidiaries" as defined in the Credit Agreement and bond indentures. Generally, the Credit Agreement and the bond indentures use a trailing four fiscal quarter basis for purposes of the relevant calculations and require certain adjustments and exclusions for purposes of those calculations, which make the calculation of financial performance for purposes of those calculations under the Credit Agreement and bond indentures not directly comparable to Adjusted EBITDA as presented herein. We are in compliance with our leverage and fixed charge coverage ratios under the Credit Agreement, our bond indentures and other agreements governing our indebtedness as of September 30, 2025. Noncompliance with these leverage and fixed charge coverage ratios would have a material adverse effect on our financial condition and liquidity.
6. COMMITMENTS AND CONTINGENCIES
We are involved in litigation from time to time in the ordinary course of business, including litigation arising from damage to customer assets in our facilities caused by fires and other natural disasters. While the outcome of litigation is inherently uncertain, we do not believe any current litigation will have a material adverse effect on our consolidated financial condition, results of operations or cash flows.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 22 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
7. STOCKHOLDERS' EQUITY MATTERS
DIVIDENDS
In fiscal year 2024 and the nine months ended September 30, 2025, our board of directors declared the following dividends:
| DECLARATION DATE | DIVIDEND PER SHARE | RECORD DATE | TOTAL AMOUNT | PAYMENT DATE | |||||||||||||||||||
| February 22, 2024 | $ | 0.6500 | March 15, 2024 | $ | 190,506 | April 4, 2024 | |||||||||||||||||
| May 2, 2024 | 0.6500 | June 17, 2024 | 190,643 | July 5, 2024 | |||||||||||||||||||
| August 1, 2024 | 0.7150 | September 16, 2024 | 209,776 | October 3, 2024 | |||||||||||||||||||
| November 6, 2024 | 0.7150 | December 16, 2024 | 209,913 | January 7, 2025 | |||||||||||||||||||
| February 13, 2025 | 0.7850 | March 17, 2025 | 231,549 | April 4, 2025 | |||||||||||||||||||
| May 1, 2025 | 0.7850 | June 16, 2025 | 231,789 | July 3, 2025 | |||||||||||||||||||
| August 6, 2025 | 0.7850 | September 15, 2025 | 231,972 | October 3, 2025 |
On November 5, 2025, we declared a dividend to our stockholders of record as of December 15, 2025 of $0.864 per share, payable on January 6, 2026.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 23 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
8. SEGMENT INFORMATION
Our Chief Operating Decision Maker ("CODM"), our President and CEO, uses Adjusted EBITDA as the basis for evaluating the performance of, and allocating resources to, our operating segments. The CODM uses Adjusted EBITDA to ensure that resources, including capital, are allocated strategically to support our strategy.
Our reportable segments as of December 31, 2024 are described in Note 11 to Notes to Consolidated Financial Statements included in our Annual Report. Our reportable segments are as follows:
-
Global RIM Business
-
Global Data Center Business
The remaining activities of our business consist primarily of our Fine Arts and asset lifecycle management ("ALM") businesses and other corporate items ("Corporate and Other").
The operations associated with acquisitions completed during the first nine months of 2025 have been incorporated into our Global RIM Business and Corporate and Other.
An analysis of our business segment information and reconciliation to the accompanying Condensed Consolidated Financial Statements for the three and nine months ended September 30, 2025 and 2024 is as follows:
| GLOBAL RIM BUSINESS | GLOBAL DATA CENTER BUSINESS | TOTAL REPORTABLE SEGMENTS | CORPORATE AND OTHER | TOTAL CONSOLIDATED | |||||||||||||||||||||||||
| For the Three Months Ended September 30, 2025 | |||||||||||||||||||||||||||||
| Total Revenues | $ | 1,338,800 | $ | 204,130 | $ | 1,542,930 | $ | 211,163 | $ | 1,754,093 | |||||||||||||||||||
| Storage Rental | 814,118 | 201,383 | 1,015,501 | 17,396 | 1,032,897 | ||||||||||||||||||||||||
| Service | 524,682 | 2,747 | 527,429 | 193,767 | 721,196 | ||||||||||||||||||||||||
| Other Segment Items(1) | 740,333 | 96,753 | 837,086 | ||||||||||||||||||||||||||
| Adjusted EBITDA | 598,467 | 107,377 | 705,844 | ||||||||||||||||||||||||||
| For the Three Months Ended September 30, 2024 | |||||||||||||||||||||||||||||
| Total Revenues | $ | 1,260,358 | $ | 153,206 | $ | 1,413,564 | $ | 143,794 | $ | 1,557,358 | |||||||||||||||||||
| Storage Rental | 767,780 | 150,796 | 918,576 | 17,125 | 935,701 | ||||||||||||||||||||||||
| Service | 492,578 | 2,410 | 494,988 | 126,669 | 621,657 | ||||||||||||||||||||||||
| Other Segment Items(1) | 691,364 | 86,410 | 777,774 | ||||||||||||||||||||||||||
| Adjusted EBITDA | 568,994 | 66,796 | 635,790 | ||||||||||||||||||||||||||
| As of and for the Nine Months Ended September 30, 2025 | |||||||||||||||||||||||||||||
| Total Revenues | $ | 3,918,540 | $ | 566,728 | $ | 4,485,268 | $ | 573,302 | $ | 5,058,570 | |||||||||||||||||||
| Storage Rental | 2,375,206 | 562,607 | 2,937,813 | 53,449 | 2,991,262 | ||||||||||||||||||||||||
| Service | 1,543,334 | 4,121 | 1,547,455 | 519,853 | 2,067,308 | ||||||||||||||||||||||||
| Other Segments Items(1) | 2,177,456 | 272,269 | 2,449,725 | ||||||||||||||||||||||||||
| Adjusted EBITDA | 1,741,084 | 294,459 | 2,035,543 | ||||||||||||||||||||||||||
| Total Assets(2) | 10,752,581 | 7,602,266 | 18,354,847 | 2,278,006 | 20,632,853 | ||||||||||||||||||||||||
| As of and for the Nine Months Ended September 30, 2024 | |||||||||||||||||||||||||||||
| Total Revenues | $ | 3,721,092 | $ | 449,845 | $ | 4,170,937 | $ | 397,693 | $ | 4,568,630 | |||||||||||||||||||
| Storage Rental | 2,253,122 | 438,221 | 2,691,343 | 48,946 | 2,740,289 | ||||||||||||||||||||||||
| Service | 1,467,970 | 11,624 | 1,479,594 | 348,747 | 1,828,341 | ||||||||||||||||||||||||
| Other Segment Items(1) | 2,077,088 | 255,464 | 2,332,552 | ||||||||||||||||||||||||||
| Adjusted EBITDA | 1,644,004 | 194,381 | 1,838,385 | ||||||||||||||||||||||||||
| Total Assets(2) | 10,628,084 | 5,659,583 | 16,287,667 | 2,181,962 | 18,469,629 |
(1)Relates to Cost of sales (excluding depreciation and amortization) and Selling, general and administrative expenses for the respective reportable segment. The CODM does not regularly review disaggregated expense information included within "Other Segment Items" for any individual segments but may review consolidated Cost of sales (excluding depreciation and amortization) and consolidated Selling, general and administrative expense information to manage the business.
(2)Excludes all intercompany receivables or payables and investment in subsidiary balances.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 24 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
8. SEGMENT INFORMATION (CONTINUED)
A reconciliation of Adjusted EBITDA for our reportable segments to total Net Income (Loss) Before Provision (Benefit) for Income Taxes for the three and nine months ended September 30, 2025 and 2024 is as follows:
| THREE MONTHS ENDED SEPTEMBER 30, | NINE MONTHS ENDED SEPTEMBER 30, | ||||||||||||||||||||||
| 2025 | 2024 | 2025 | 2024 | ||||||||||||||||||||
| Total Adjusted EBITDA for Reportable Segments | $ | 705,844 | $ | 635,790 | $ | 2,035,543 | $ | 1,838,385 | |||||||||||||||
| Add/(Deduct): | |||||||||||||||||||||||
| Corporate and other | (45,465) | (67,677) | (166,870) | (207,056) | |||||||||||||||||||
| Interest expense, net | (209,740) | (186,067) | (609,541) | (527,107) | |||||||||||||||||||
| Depreciation and amortization | (262,203) | (232,240) | (746,923) | (666,296) | |||||||||||||||||||
| Acquisition and Integration Costs | (5,402) | (11,262) | (16,040) | (28,573) | |||||||||||||||||||
| Restructuring and other transformation | (47,346) | (37,282) | (152,432) | (124,562) | |||||||||||||||||||
| (Loss) gain on disposal/write-down of property, plant and equipment, net (including real estate) | (3,366) | (5,091) | (7,975) | (8,270) | |||||||||||||||||||
| Other income (expense), net, excluding our share of (losses) gains from our unconsolidated joint ventures | 5,329 | (85,532) | (102,751) | (76,954) | |||||||||||||||||||
| Stock-based compensation expense | (32,147) | (29,563) | (118,595) | (73,491) | |||||||||||||||||||
| Our share of Adjusted EBITDA reconciling items from our unconsolidated joint ventures | (2,669) | (2,341) | (7,557) | (5,767) | |||||||||||||||||||
| Total Net Income (Loss) Before Provision (Benefit) for Income Taxes | $ | 102,835 | $ | (21,265) | $ | 106,859 | $ | 120,309 |
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 25 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
8. SEGMENT INFORMATION (CONTINUED)
Segment revenue by product and service lines for the three and nine months ended September 30, 2025 and 2024 is as follows:
| THREE MONTHS ENDED SEPTEMBER 30, | NINE MONTHS ENDED SEPTEMBER 30, | ||||||||||||||||||||||
| 2025 | 2024 | 2025 | 2024 | ||||||||||||||||||||
| Global RIM Business | |||||||||||||||||||||||
| Records Management(1) | $ | 1,060,359 | $ | 990,333 | $ | 3,107,681 | $ | 2,901,465 | |||||||||||||||
| Data Management(1) | 134,339 | 127,583 | 380,372 | 390,706 | |||||||||||||||||||
| Information Destruction(1)(2) | 144,102 | 142,442 | 430,487 | 428,921 | |||||||||||||||||||
| Data Center(1) | — | — | — | — | |||||||||||||||||||
| Global Data Center Business | |||||||||||||||||||||||
| Records Management(1) | $ | — | $ | — | $ | — | $ | — | |||||||||||||||
| Data Management(1) | — | — | — | — | |||||||||||||||||||
| Information Destruction(1) | — | — | — | — | |||||||||||||||||||
| Data Center(1) | 204,130 | 153,206 | 566,728 | 449,845 | |||||||||||||||||||
| Corporate and Other | |||||||||||||||||||||||
| Records Management(1) | $ | 42,340 | $ | 41,460 | $ | 130,813 | $ | 121,528 | |||||||||||||||
| Data Management(1) | — | — | — | — | |||||||||||||||||||
| Information Destruction(1)(3) | 168,823 | 102,334 | 442,489 | 276,165 | |||||||||||||||||||
| Data Center(1) | — | — | — | — | |||||||||||||||||||
| Total Consolidated | |||||||||||||||||||||||
| Records Management(1) | $ | 1,102,699 | $ | 1,031,793 | $ | 3,238,494 | $ | 3,022,993 | |||||||||||||||
| Data Management(1) | 134,339 | 127,583 | 380,372 | 390,706 | |||||||||||||||||||
| Information Destruction(1)(2)(3) | 312,925 | 244,776 | 872,976 | 705,086 | |||||||||||||||||||
| Data Center(1) | 204,130 | 153,206 | 566,728 | 449,845 |
(1)Each of these offerings has a component of revenue that is storage rental related and a component that is service related, except for information destruction, which does not have a storage rental component.
(2)Information destruction revenue for our Global RIM Business includes secure shredding services.
(3)Information destruction revenue for Corporate and Other includes product revenue from our ALM business.
9. RELATED PARTIES
We have agreements with the Frankfurt JV whereby we earn various fees, including (i) special project revenue and (ii) property management and construction and development fees for services we are providing to the Frankfurt JV (the "Frankfurt JV Agreements").
Revenue recognized in the accompanying Condensed Consolidated Statements of Operations under these agreements for the three and nine months ended September 30, 2025 and 2024 is as follows (approximately):
| THREE MONTHS ENDED SEPTEMBER 30, | NINE MONTHS ENDED SEPTEMBER 30, | ||||||||||||||||||||||
| 2025 | 2024 | 2025 | 2024 | ||||||||||||||||||||
| Frankfurt JV Agreements(1) | $ | — | $ | 200 | $ | — | $ | 2,700 |
(1)Revenue associated with the Frankfurt JV Agreements is presented as a component of our Global Data Center Business segment.
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 26 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
10. RESTRUCTURING AND OTHER TRANSFORMATION
PROJECT MATTERHORN
In September 2022, we announced Project Matterhorn. Project Matterhorn investments focus on transforming our operating model to a global operating model. Project Matterhorn focuses on the formation of a solution-based sales approach that is designed to allow us to optimize our shared services and best practices to better serve our customers' needs. We are investing to accelerate growth and to capture a greater share of the large, global addressable markets in which we operate. We expect Project Matterhorn to be completed by December 31, 2025. We have incurred approximately $530,900 in Restructuring and other transformation costs from the inception of Project Matterhorn through September 30, 2025. Costs are comprised of (1) restructuring costs, which include (i) site consolidation and other related exit costs, (ii) employee severance costs and (iii) certain professional fees associated with these activities, and (2) other transformation costs, which include professional fees such as project management costs and costs for third party consultants who are assisting in the enablement of our growth initiatives.
Restructuring and other transformation related to Project Matterhorn included in the accompanying Condensed Consolidated Statements of Operations for the three and nine months ended September 30, 2025 and 2024, and from the inception of Project Matterhorn through September 30, 2025, is as follows:
| THREE MONTHS ENDED SEPTEMBER 30, | NINE MONTHS ENDED SEPTEMBER 30, | FROM INCEPTION THROUGH SEPTEMBER 30, 2025 | |||||||||||||||||||||||||||
| 2025 | 2024 | 2025 | 2024 | ||||||||||||||||||||||||||
| Restructuring | $ | 21,502 | $ | 11,556 | $ | 61,604 | $ | 38,618 | $ | 183,297 | |||||||||||||||||||
| Other transformation | 25,844 | 25,726 | 90,828 | 85,944 | 347,642 | ||||||||||||||||||||||||
| Restructuring and other transformation | $ | 47,346 | $ | 37,282 | $ | 152,432 | $ | 124,562 | $ | 530,939 |
Restructuring costs for Project Matterhorn, included as a component of Restructuring and other transformation in the accompanying Condensed Consolidated Statements of Operations, by segment, for the three and nine months ended September 30, 2025 and 2024, and from the inception of Project Matterhorn through September 30, 2025, are as follows:
| THREE MONTHS ENDED SEPTEMBER 30, | NINE MONTHS ENDED SEPTEMBER 30, | FROM INCEPTION THROUGH SEPTEMBER 30, 2025 | |||||||||||||||||||||||||||
| 2025 | 2024 | 2025 | 2024 | ||||||||||||||||||||||||||
| Global RIM Business | $ | 18,827 | $ | 10,731 | $ | 56,227 | $ | 33,515 | $ | 158,162 | |||||||||||||||||||
| Global Data Center Business | 220 | — | 371 | 2,576 | 3,947 | ||||||||||||||||||||||||
| Corporate and Other | 2,455 | 825 | 5,006 | 2,527 | 21,188 | ||||||||||||||||||||||||
| Total restructuring costs | $ | 21,502 | $ | 11,556 | $ | 61,604 | $ | 38,618 | $ | 183,297 |
Other transformation costs for Project Matterhorn, included as a component of Restructuring and other transformation in the accompanying Condensed Consolidated Statements of Operations, by segment, for the three and nine months ended September 30, 2025 and 2024, and from the inception of Project Matterhorn through September 30, 2025, are as follows:
| THREE MONTHS ENDED SEPTEMBER 30, | NINE MONTHS ENDED SEPTEMBER 30, | FROM INCEPTION THROUGH SEPTEMBER 30, 2025 | |||||||||||||||||||||||||||
| 2025 | 2024 | 2025 | 2024 | ||||||||||||||||||||||||||
| Global RIM Business | $ | 10,008 | $ | 10,799 | $ | 32,719 | $ | 30,143 | $ | 103,326 | |||||||||||||||||||
| Global Data Center Business | 2,299 | 1,292 | 4,811 | 3,955 | 14,631 | ||||||||||||||||||||||||
| Corporate and Other | 13,537 | 13,635 | 53,298 | 51,846 | 229,685 | ||||||||||||||||||||||||
| Total other transformation costs | $ | 25,844 | $ | 25,726 | $ | 90,828 | $ | 85,944 | $ | 347,642 |
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 27 |
Part I. Financial Information
IRON MOUNTAIN INCORPORATED
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(In thousands, except share and per share data) (Unaudited)
10. RESTRUCTURING AND OTHER TRANSFORMATION (CONTINUED)
The rollforward of the accrued restructuring costs and accrued other transformation costs, which are included as components of Accrued expenses and other current liabilities in our Condensed Consolidated Balance Sheets, for December 31, 2024 through September 30, 2025, is as follows:
| RESTRUCTURING | OTHER TRANSFORMATION | TOTAL RESTRUCTURING AND OTHER TRANSFORMATION | |||||||||||||||
| Balance as of December 31, 2024 | $ | 6,974 | $ | 13,004 | $ | 19,978 | |||||||||||
| Amount accrued | 61,604 | 90,828 | 152,432 | ||||||||||||||
| Payments | (54,027) | (87,597) | (141,624) | ||||||||||||||
| Balance as of September 30, 2025 | $ | 14,551 | $ | 16,235 | $ | 30,786 |
| IRON MOUNTAIN SEPTEMBER 30, 2025 FORM 10-Q | 28 |
Part I. Financial Information
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