SEC Form 4 · Updated Daily
IRM
— IRON MOUNTAIN INCORPORATED OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| DAUTEN KENT P | Director | 1,209,573 | 2026-05-07 | A |
| Hytinen Barry | Director | 326,623 | 2026-03-01 | F |
| Kidd Mark | Officer | 95,507 | 2026-09-01 | S |
| McIntosh Greg W | Officer | 75,634 | 2026-09-01 | S |
| Arway Pamela M | Director | 40,196 | 2026-05-12 | S |
| FORD MONTE E | Director | 31,817 | 2026-05-07 | A |
| Matlock Robin | Director | 30,451.189 | 2026-05-07 | A |
| Bhargava Mithu | Officer | 16,054 | 2026-03-19 | S |
| Allerton Jennifer | Director | 13,300 | 2026-05-07 | F |
| Altamura Michelle Vervais | Officer | 7,728 | 2026-03-01 | F |
| Felix June Yee | Director | 4,883 | 2026-05-07 | A |
| Kelly Christie B. | Director | 3,211.061 | 2026-05-07 | A |
| Simons Doyle | Director | 1,892 | 2026-05-07 | A |
| RAKOWICH WALTER C | Director | 1,135 | 2026-05-20 | S |
| Meaney William L | Director | 0 | 2026-09-01 | S |
| Borges Daniel | Officer | 0 | 2026-05-21 | S |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-09-01 | Kidd Mark | Open-market sale | 6,000 | $115.60 | 95,507 |
| 2026-09-01 | McIntosh Greg W | Open-market sale | 5,000 | $115.60 | 75,634 |
| 2026-09-01 | Meaney William L | Option exercise (derivative) | 38,474 | — | 115,422 |
| 2026-09-01 | Meaney William L | Open-market sale | 89 | $116.00 | 0 |
| 2026-09-01 | Meaney William L | Open-market sale | 6,101 | $115.00 | 89 |
| 2026-09-01 | Meaney William L | Open-market sale | 20,952 | $114.14 | 6,190 |
| 2026-09-01 | Meaney William L | Open-market sale | 11,332 | $113.45 | 27,142 |
| 2026-09-01 | Meaney William L | Option exercise | 38,474 | $37.00 | 38,474 |
| 2026-08-07 | Kidd Mark | Open-market sale | 6,000 | $122.70 | 101,507 |
| 2026-08-07 | Meaney William L | Option exercise (derivative) | 38,474 | — | 153,896 |
| 2026-08-07 | Meaney William L | Open-market sale | 2,909 | $122.75 | 0 |
| 2026-08-07 | Meaney William L | Open-market sale | 16,785 | $122.11 | 2,909 |
| 2026-08-07 | Meaney William L | Open-market sale | 18,780 | $121.10 | 19,694 |
| 2026-08-07 | Meaney William L | Option exercise | 38,474 | $37.00 | 38,474 |
| 2026-08-06 | McIntosh Greg W | Option exercise (derivative) | 6,839 | — | 0 |
| 2026-08-06 | McIntosh Greg W | Option exercise | 6,839 | $37.00 | 87,473 |
| 2026-08-06 | McIntosh Greg W | Open-market sale | 5,000 | $127.13 | 80,634 |
| 2026-07-06 | Samuels Theodore R. II | Grant / award (derivative) | 99.06 | $116.79 | 13,800.33 |
| 2026-07-06 | Simons Doyle | Grant / award (derivative) | 339.36 | $116.79 | 46,213.296 |
| 2026-07-02 | Samuels Theodore R. II | Grant / award (derivative) | 310.86 | $116.61 | 13,701.27 |
| 2026-07-01 | Kidd Mark | Open-market sale | 6,000 | $125.62 | 107,507 |
| 2026-07-01 | Meaney William L | Option exercise (derivative) | 38,474 | — | 192,370 |
| 2026-07-01 | Meaney William L | Open-market sale | 2,530 | $125.82 | 0 |
| 2026-07-01 | Meaney William L | Open-market sale | 1,601 | $124.72 | 2,530 |
| 2026-07-01 | Meaney William L | Open-market sale | 7,173 | $123.84 | 4,131 |
| 2026-07-01 | Meaney William L | Open-market sale | 9,656 | $122.84 | 11,304 |
| 2026-07-01 | Meaney William L | Open-market sale | 17,514 | $121.81 | 20,960 |
| 2026-07-01 | Meaney William L | Option exercise | 38,474 | $37.00 | 38,474 |
| 2026-06-01 | Kidd Mark | Open-market sale | 6,000 | $126.70 | 113,507 |
| 2026-06-01 | Meaney William L | Option exercise (derivative) | 38,474 | — | 230,844 |
| 2026-06-01 | Meaney William L | Open-market sale | 1,091 | $129.66 | 0 |
| 2026-06-01 | Meaney William L | Open-market sale | 9,247 | $129.14 | 1,091 |
| 2026-06-01 | Meaney William L | Open-market sale | 7,523 | $127.90 | 10,338 |
| 2026-06-01 | Meaney William L | Open-market sale | 10,457 | $127.00 | 17,861 |
| 2026-06-01 | Meaney William L | Open-market sale | 10,156 | $126.20 | 28,318 |
| 2026-06-01 | Meaney William L | Option exercise | 38,474 | $37.00 | 38,474 |
| 2026-05-21 | Borges Daniel | Open-market sale | 7,189 | $125.50 | 0 |
| 2026-05-20 | RAKOWICH WALTER C | Open-market sale | 757 | $124.45 | 1,135 |
| 2026-05-12 | Arway Pamela M | Open-market sale | 1,892 | $128.97 | 40,196 |
| 2026-05-08 | Kidd Mark | Open-market sale | 6,000 | $127.91 | 119,507 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.