Iron Mountain Inc. (IRM) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for IRM. 13F holdings as of 2026-06-30.
In 13F filings for the quarter ended June 30, 2026, 1,142 institutions reported holding IRM, with 255.2 million shares worth $32.2 billion in aggregate.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| Vanguard | 47,791,126 | $6.0B | INCREASED |
| BlackRock | 33,570,910 | $4.2B | INCREASED |
| State Street | 17,634,044 | $2.2B | INCREASED |
| Cohen & Steers | 12,019,735 | $1.5B | DECREASED |
| Geode Capital Management | 8,649,249 | $1.1B | INCREASED |
Recent Insider Trades
| Insider | Type | Shares | Value | Date |
|---|---|---|---|---|
| Theodore R. Samuels II (Director) | AWARD | 310 | $36K | 2026-10-06 |
| Doyle Simons (Director) | AWARD | 350 | $40K | 2026-10-02 |
| Theodore R. Samuels II (Director) | AWARD | 104 | $12K | 2026-10-02 |
| Greg W Mcintosh (EVP, Chief Commercial Officer) | SELL | 5,000 | $554K | 2026-10-01 |
| William L Meaney (President and CEO) | EXERCISE | 38,474 | $1M | 2026-10-01 |
Full institutional holdings, insider history, and congressional trades for Iron Mountain Inc. on SentiSense.