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Iron Mountain Inc

IRM
Exchange
NYSE
Industry
Real Estate Investment Trusts
SEC CIK
0001020569

In the last 90 days, Iron Mountain Inc insiders filed 0 open-market purchases and 6 sales; 1,173 institutions reported holding it in 13F filings for Q2 2026, worth $32.4B in total; no superinvestor holds it.

13F holders, Q2 2024

Institutional positions in Iron Mountain Inc as of Jun 30, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
967
+42 vs. Q1 2024
Shares held
248.0M
+11.4M (+4.8%) vs. Q1 2024
Total value
$22.2B
+$3.28B (+17.3%) vs. Q1 2024
New holders
105
327 more added
Sold out
63
374 more reduced

13 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2024: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting IRM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2024: 967 institutions
Q1 2021: 630 institutionsQ2 2021: 687 institutionsQ3 2021: 711 institutionsQ4 2021: 754 institutionsQ1 2022: 777 institutionsQ2 2022: 767 institutionsQ3 2022: 743 institutionsQ4 2022: 782 institutionsQ1 2023: 790 institutionsQ2 2023: 817 institutionsQ3 2023: 831 institutionsQ4 2023: 891 institutionsQ1 2024: 938 institutionsQ2 2024: 967 institutionsQ3 2024: 1,056 institutionsQ4 2024: 1,067 institutionsQ1 2025: 995 institutionsQ2 2025: 1,045 institutionsQ3 2025: 1,017 institutionsQ4 2025: 1,011 institutionsQ1 2026: 1,090 institutionsQ2 2026: 1,173 institutions
Value heldQ2 2024: $22.2B
Q1 2021: $8.44BQ2 2021: $9.70BQ3 2021: $9.94BQ4 2021: $12.0BQ1 2022: $12.4BQ2 2022: $10.9BQ3 2022: $10.0BQ4 2022: $11.4BQ1 2023: $12.0BQ2 2023: $12.9BQ3 2023: $13.7BQ4 2023: $16.4BQ1 2024: $19.0BQ2 2024: $22.2BQ3 2024: $28.8BQ4 2024: $24.9BQ1 2025: $21.1BQ2 2025: $25.5BQ3 2025: $25.5BQ4 2025: $21.4BQ1 2026: $25.9BQ2 2026: $32.4B
Institutions holding IRM and their total value by quarter
QuarterHoldersValue
Q2 20261,173$32.4B
Q1 20261,090$25.9B
Q4 20251,011$21.4B
Q3 20251,017$25.5B
Q2 20251,045$25.5B
Q1 2025995$21.1B
Q4 20241,067$24.9B
Q3 20241,056$28.8B
Q2 2024967$22.2B
Q1 2024938$19.0B
Q4 2023891$16.4B
Q3 2023831$13.7B
Q2 2023817$12.9B
Q1 2023790$12.0B
Q4 2022782$11.4B
Q3 2022743$10.0B
Q2 2022767$10.9B
Q1 2022777$12.4B
Q4 2021754$12.0B
Q3 2021711$9.94B
Q2 2021687$9.70B
Q1 2021630$8.44B

Institutions, Q2 2024

Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q1 2024.

Institutions holding IRM in Q2 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Catalytic Wealth RIA, LLC17,784$1.59M0.31%+3,958+28.6%Added
AE Wealth Management LLC18,006$1.61M0.02%+6,611+58.0%Added
Fagan Associates, Inc.18,183$1.63M0.29%+670+3.8%Added
O'Shaughnessy Asset Management, LLC18,288$1.64M0.02%+2,944+19.2%Added
Dai-Ichi Life Insurance Company, Ltd18,314$1.64M0.04%+18,314New
Highline Wealth Partners LLC18,530$1.66M0.63%−246−1.3%Reduced
Hartford Investment Management Co18,854$1.69M0.06%−87−0.5%Reduced
Donoghue Forlines LLC18,855$1.69M0.48%−1,272−6.3%Reduced
Trust Investment Advisors18,909$1.69M1.08%−464−2.4%Reduced
JustInvest LLC18,998$1.70M0.03%+2,393+14.4%Added
Susquehanna Fundamental Investments, LLC19,131$1.71M0.04%−40,955−68.2%Reduced
Naviter Wealth, LLC19,085$1.72M0.26%+673+3.7%Added
Moody National Bank Trust Division19,329$1.73M0.13%+626+3.3%Added
Eagle Ridge Investment Management19,702$1.77M0.16%00.0%Unchanged
MBB Public Markets I LLC19,917$1.78M0.04%+15,974+405.1%Added
Cerity Partners LLC19,920$1.79M0.00%−2,473−11.0%Reduced
Park Avenue Securities LLC20,104$1.80M0.02%+253+1.3%Added
Balyasny Asset Management LLC20,449$1.83M0.00%−48,626−70.4%Reduced
Illinois Municipal Retirement Fund20,469$1.83M0.03%00.0%Unchanged
Tower Research Capital LLC (TRC)20,552$1.84M0.03%+10,051+95.7%Added
HighPoint Advisor Group LLC18,287$1.85M0.11%+261+1.4%Added
SpiderRock Advisors, LLC21,352$1.91M0.05%−143−0.7%Reduced
F/M Investments LLC21,260$1.92M0.07%+21,260New
Fiduciary Trust Co21,742$1.95M0.03%+246+1.1%Added
MSH Capital Advisors LLC21,749$1.95M0.65%+738+3.5%Added
Kentucky Retirement Systems22,089$1.98M0.06%−86−0.4%Reduced
Maryland State Retirement & Pension System22,108$1.98M0.04%00.0%Unchanged
KCM Investment Advisors LLC22,158$1.99M0.07%+248+1.1%Added
Delphi Management Inc22,237$1.99M1.62%−1,869−7.8%Reduced
Apollon Wealth Management, LLC22,309$2.00M0.06%−355−1.6%Reduced
Corrado Advisors, LLC22,366$2.00M1.30%−1,656−6.9%Reduced
Cascade Investment Group, Inc.22,495$2.02M1.57%−400−1.7%Reduced
State Farm Mutual Automobile Insurance Co22,500$2.02M0.00%00.0%Unchanged
Mizuho Securities USA LLC22,603$2.03M0.04%+22,603New
Heritage Trust Co22,639$2.03M0.27%−238−1.0%Reduced
GeoWealth Management, LLC22,852$2.05M0.09%+9,899+76.4%Added
Steward Partners Investment Advisory, LLC22,972$2.06M0.02%+2,358+11.4%Added
Venture Visionary Partners LLC23,018$2.06M0.10%−11,308−32.9%Reduced
US Bancorp23,060$2.07M0.00%+938+4.2%Added
Atria Investments LLC23,116$2.07M0.03%−236−1.0%Reduced
Teachers Retirement System of the State of Kentucky23,186$2.08M0.02%−634−2.7%Reduced
Oppenheimer Asset Management Inc.23,246$2.08M0.03%−788−3.3%Reduced
TFG Advisers LLC23,532$2.11M0.82%+1,017+4.5%Added
Benjamin F. Edwards & Company, Inc.23,553$2.11M0.04%−682−2.8%Reduced
Norinchukin Bank, The23,715$2.13M0.06%−320−1.3%Reduced
Gulf International Bank (UK) Ltd23,892$2.14M0.05%00.0%Unchanged
Obermeyer Wood Investment Counsel, LLLP24,069$2.16M0.12%−997−4.0%Reduced
Horizon Kinetics Asset Management LLC24,100$2.16M0.04%−400−1.6%Reduced
Ancora Advisors, LLC24,314$2.18M0.05%−150−0.6%Reduced
Lee Danner & Bass Inc24,425$2.19M0.17%+24,425New
Ellsworth Advisors, LLC24,471$2.19M0.61%+567+2.4%Added
Gables Capital Management Inc.24,660$2.21M1.16%+70+0.3%Added
Envestnet Portfolio Solutions, Inc.24,696$2.21M0.01%−856−3.4%Reduced
Davenport & Co LLC24,832$2.23M0.01%+78+0.3%Added
Oregon Public Employees Retirement Fund25,149$2.25M0.04%+219+0.9%Added
Commerce Bank25,549$2.29M0.01%+447+1.8%Added
Strategic Financial Concepts, LLC233,251$2.30M0.01%+233,251New
Candriam Luxembourg S.C.A.26,080$2.34M0.01%−162,368−86.2%Reduced
Nordea Investment Management AB26,073$2.34M0.00%+1,549+6.3%Added
Green Alpha Advisors, LLC26,153$2.34M1.88%−974−3.6%Reduced
Fifth Third Bancorp26,236$2.35M0.01%−68−0.3%Reduced
Alberta Investment Management Corp26,300$2.36M0.02%+20,400+345.8%Added
PFG Investments, LLC26,336$2.36M0.17%−2,282−8.0%Reduced
Sippican Capital Advisors26,687$2.39M1.89%00.0%Unchanged
Advisory Services Network, LLC26,721$2.39M0.05%+1,437+5.7%Added
CoreFirst Bank & Trust27,014$2.42M1.63%−450−1.6%Reduced
Capital Investment Advisors, LLC27,031$2.42M0.05%+269+1.0%Added
Shelton Capital Management27,371$2.45M0.07%−80,800−74.7%Reduced
Pensionfund Sabic27,500$2.46M0.73%−1,000−3.5%Reduced
U.S. Capital Wealth Advisors, LLC27,630$2.48M0.09%−4,350−13.6%Reduced
CoreCap Advisors, LLC28,093$2.52M0.26%−802−2.8%Reduced
Morse Asset Management, Inc28,115$2.52M0.61%−1,000−3.4%Reduced
Elo Mutual Pension Insurance Co28,704$2.57M0.06%+2,110+7.9%Added
Sanctuary Advisors, LLC33,535$2.60M0.02%+33,535New
B. Metzler seel. Sohn & Co. AG29,275$2.62M0.03%+317+1.1%Added
Prana Capital Management, LP29,304$2.63M0.12%+5,079+21.0%Added
Stock Yards Bank & Trust Co29,617$2.65M0.09%−1,239−4.0%Reduced
Sage Capital Management, LLC29,917$2.68M1.41%−1,906−6.0%Reduced
National Asset Management, Inc.29,828$2.69M0.07%−960−3.1%Reduced
Madison Asset Management, LLC30,083$2.70M0.03%00.0%Unchanged
Mirae Asset Global ETFs Holdings Ltd.30,115$2.70M0.01%+30,115New
Public Employees Retirement Association of Colorado30,171$2.70M0.01%−614−2.0%Reduced
Bank of Nova Scotia30,524$2.74M0.01%−5,735−15.8%Reduced
Wolverine Asset Management LLC30,721$2.75M0.05%00.0%Unchanged
Achmea Investment Management B.V.31,486$2.82M0.05%−11,326−26.5%Reduced
Terra Nova Asset Management LLC32,409$2.90M2.29%+120+0.4%Added
PGGM Investments32,794$2.94M0.04%+10,425+46.6%Added
Smithfield Trust Co33,253$2.98M0.16%−3,778−10.2%Reduced
Warren Averett Asset Management, LLC33,324$2.99M0.06%+408+1.2%Added
Cyndeo Wealth Partners, LLC33,733$3.02M0.24%−180−0.5%Reduced
Pacitti Group Inc.33,940$3.06M1.60%−323−0.9%Reduced
APG Asset Management N.V.37,044$3.10M0.01%+24,100+186.2%Added
Pathstone Holdings, LLC35,655$3.20M0.01%−2,551−6.7%Reduced
Spirit of America Management Corp35,750$3.20M0.65%+6,950+24.1%Added
Mutual of America Capital Management LLC36,970$3.31M0.04%−1,315−3.4%Reduced
Gillson Capital LP37,200$3.33M0.32%−81,299−68.6%Reduced
Investment Management Corp of Ontario37,442$3.36M0.09%+32,751+698.2%Added
Courier Capital LLC37,703$3.38M0.27%−801−2.1%Reduced
CIBC World Markets Corp37,790$3.39M0.02%−82,379−68.6%Reduced
Siemens Fonds Invest GmbH37,996$3.41M0.25%00.0%Unchanged