Who Owns Iron Mountain Inc (IRM)? -- Institutional Holders (2026-06-30)

39 institutions reported holding $59.5M of Iron Mountain Inc (IRM) in SEC 13F filings for 2026-06-30. Largest institutional holders: Czech National Bank ($10.7M), PensionDanmark Pensionsforsikringsaktieselskab ($8.6M), FORESIGHT CAPITAL MANAGEMENT ADVISORS, INC. ($7.5M), Hennion & Walsh Asset Management, Inc. ($7.1M), Pensionfund DSM Netherlands ($5.4M). Source: SEC Form 13F.

RankInstitutionValueSharesChange
1Czech National Bank$10.7M84,687Added
2PensionDanmark Pensionsforsikringsaktieselskab$8.6M68,465New
3FORESIGHT CAPITAL MANAGEMENT ADVISORS, INC.$7.5M59,644Trimmed
4Hennion & Walsh Asset Management, Inc.$7.1M56,304Added
5Pensionfund DSM Netherlands$5.4M42,500Hold
6Gradient Investments LLC$3.7M29,602Added
7Pensionfund Sabic$2.6M20,300Hold
8Chesley Taft & Associates LLC$1.6M12,299Added
9Assenagon Asset Management S.A.$1.5M12,024Trimmed
10MOODY NATIONAL BANK TRUST DIVISION$1.4M11,232Added
11ATWOOD & PALMER INC$1.2M9,487Added
12Mechanics Bank Trust Department$1.1M9,042Trimmed
13GAMMA Investing LLC$974,6087,716Added
14MassMutual Private Wealth & Trust, FSB$939,6207,439Trimmed
15Avior Wealth Management, LLC$835,5416,615Trimmed
16CX Institutional$693,0005,489Trimmed
17Somerset Trust Co$685,6115,428Trimmed
18Ledgewood Wealth Advisors, LLC$480,7363,806Hold
19Teamwork Financial Advisors, LLC$452,5473,582Added
20Versant Capital Management, Inc$284,5762,253Added
21Paller Financial Services Inc$267,1462,115Trimmed
22Strategic Investment Solutions, Inc. /IL$242,8941,923Hold
23Valeo Financial Advisors, LLC$242,5621,920New
24Dynamic Advisor Solutions LLC$226,2481,791New
25FIRST FINANCIAL CORP /IN/$189,4651,500Hold

Source: SEC Form 13F filings · as of 2026-06-30