SEC Form 4 · accession 0001566391-26-000022
IRON MOUNTAIN INC · IRM
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
William L Meaney
Officer — President and CEO · Director
Period of report
Aug 7, 2026
Accepted (ET)
Aug 10, 2026 · 4:12 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001020569
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock, par value $.01 per share | Aug 7, 2026 | M | 38,474 | $37.00 | A | 38,474 | D | |
| Common Stock, par value $.01 per shareF2 | Aug 7, 2026 | S | 18,780 | $121.10 | D | 19,694 | D | |
| Common Stock, par value $.01 per shareF3 | Aug 7, 2026 | S | 16,785 | $122.11 | D | 2,909 | D | |
| Common Stock, par value $.01 per shareF4 | Aug 7, 2026 | S | 2,909 | $122.75 | D | 0 | D | |
| Common Stock, par value $.01 per share | holding | — | — | — | 82,970 | I | By Meaney 2024 Master Trust | |
| Common Stock, par value $.01 per share | holding | — | — | — | 212,680 | I | By Meaney Master Trust #2 |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Employee Stock Option (Right to Buy)F6,F5 | $37.00 | Aug 7, 2026 | M | 38,474 | D | — | Feb 16, 2027 | Common Stock, par value $.01 per share | 38,474 | 153,896 | D |
Explanation of responses
- F1This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.
- F2The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated common stock ("Common Stock") were sold in multiple transactions at prices ranging from $120.56 to $121.55, inclusive. The Reporting Person undertakes to provide Iron Mountain Incorporated (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (2).
- F3The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $121.56 to $122.56, inclusive. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (3).
- F4The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $122.60 to $123.12, inclusive. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (4).
- F5This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested.
- F6Not applicable.