Form 4 for IRM Iron Mountain
Accepted 2026-03-03 00:00:00 ET · period of report 2026-03-01 · accession 0001769841-26-000005 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-03-03 | 2026-03-01 | IRM | McIntosh Greg W | EVP, Chief Commercial Off | M - OptEx | $0.00 | +123.1K | 141.3K | +680% | $0 |
| D | 2026-03-03 | 2026-03-01 | IRM | McIntosh Greg W | EVP, Chief Commercial Off | F - Tax | $108.33 | -55.6K | 85.6K | -39% | -$6.02M |
| D | 2026-03-03 | 2026-03-01 | IRM | McIntosh Greg W | EVP, Chief Commercial Off | M - OptEx | $0.00 | -123.1K | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock, par value $.01 per share | 2026-03-01 | M | A | 123,144 | $0.00 | 141,251 | D | — | — | (F1) This acquisition is reported to reflect the full vesting of performance units ("PUs") previously granted to the Reporting Person on March 1, 2023. Effective February 16, 2026, the Compensation Committee of Iron Mountain Incorporated's Board of Directors determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2026. |
| 2 | Common | Common Stock, par value $.01 per share | 2026-03-01 | F | D | 55,617 | $108.33 | 85,634 | D | — | — | (F2) Represents the number of shares of Common Stock that have been withheld by the Issuer to satisfy its income tax withholding obligation in connection with the net settlement of the PUs and does not represent a sale. |
| 3 | Derivative | Performance Units | 2026-03-01 | M | D | 123,144 | $0.00 | 0 | D | — · — to — | 123,144 Common Stock, par value $.01 per share | (F3) Each PU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock"). (F4) The PUs were initially granted to the Reporting Person on March 1, 2023. Effective as of February 16, 2026, the Compensation Committee determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2026. |