Iron MountainIRM
13F holders, Q2 2025 (June 30)1holders
0new positions
0sold out
$102.57avg. 13F price*
At the end of Q2 2025, 1 institutions reported holding Iron Mountain Inc (IRM) in their 13F filings, unchanged from Q1 2025. 0 opened new positions and 0 sold out. The largest holder was Byrne Asset Management LLC ($41K).
- Company
- Iron Mountain Inc
- Filed as
- IRON MTN INC NEW REIT (Q2 2025)
- CUSIP
- 462846106
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 0 | $0 |
All 13F filers, Q1 2025 → Q2 2025: 25 shares sold, net −25 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 1 holders
| Byrne Asset Management LLC | 0.03% | Reduce -5.9% | 400 | $41K |
"% of holder's portfolio" is IRM's weight in each manager's 13F, not the share of Iron Mountain Inc the manager owns.