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Iron Mountain shares owned by Summa Corp.

Quarter-by-quarter ownership of Iron Mountain (IRM) shares owned by Summa Corp. from 13F filings

Historical chart of Summa Corp. investment in Iron Mountain

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All positions including Iron Mountain held by Summa Corp. consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Iron Mountain by Summa Corp.

Quarter filed Position value Share count Share price at filing
2026-06-30 $227k 1.8k 126.31

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Top funds holding Iron Mountain

BlackRock
Vanguard Portfolio Management
Vanguard Capital Management
State Street Corporation
Cohen & Steers Capital Management
Geode Capital Management
FMR
Morgan Stanley
Dimensional Fund Advisors
Principal Financial Group
Charles Schwab Investment Management
Sixth Street Partners Management Company
Northern Trust
Norges Bank Investment Management
Invesco

View all funds holding Iron Mountain