Iron Mountain — Institutional Ownership
Which tracked institutions hold IRM, and how they changed the position last quarter. Latest holdings as of Mar 31, 2026. Source: SEC 13-F filings.
8
Funds holding
$378316442
Total value held
Buying
4 added/new · 3 reduced
| # | Institution | Value | Shares | Δ Shares | Change (QoQ) |
|---|---|---|---|---|---|
| 1 | Ameriprise Financial Inc | $189082930 | 1851007 | +106602 | +6.11% |
| 2 | Bank Of New York Mellon Corp | $165960798 | 1624836 | -61142 | -3.63% |
| 3 | Brookfield Corp /On/ | $19228366 | 188255 | +44935 | +31.35% |
| 4 | Allstate Corp | $1860320 | 22427 | +11492 | +105.09% |
| 5 | Cohen & Steers, Inc. | $1651537 | 16169341 | -2734375 | -14.46% |
| 6 | Park National Corp /Oh/ | $373424 | 3656 | -182 | -4.74% |
| 7 | First Financial Corp /In/ | $153210 | 1500 | — | Held |
| 8 | Amalgamated Financial Corp. | $5857 | 105699 | — | NEW BUY |
Aggregated across tracked institutional filers. Reported quarterly on SEC Form 13-F and may lag. For research only — not investment advice.