Iron Mountain Inc. (IRM) Ownership & Trading Activity

Institutional holders, insider transactions, and congressional trades for IRM. 13F holdings as of 2026-06-30.

Top Institutional Holders

InstitutionSharesValueChange
Asset Management One Co., Ltd554,607$70MINCREASED
Robeco Institutional Asset Management B.V297,899$38MINCREASED
Swedbank AB287,064$36MINCREASED
Commonwealth of Pennsylvania Public School Empls Retrmt Sys286,428$36MINCREASED
Border to Coast Pensions Partnership275,000$35MDECREASED

Recent Insider Trades

InsiderTypeSharesValueDate
Theodore R. Samuels II (Director)AWARD99$12K2026-07-06
Doyle Simons (Director)AWARD339$40K2026-07-06
Theodore R. Samuels II (Director)AWARD310$36K2026-07-02
Mark Kidd (EVP, GM Data Centers & ALM)SELL6,000$754K2026-07-01
William L Meaney (President and CEO)EXERCISE38,474$1M2026-07-01

Full institutional holdings, insider history, and congressional trades for Iron Mountain Inc. on SentiSense.