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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, Q3 2024

Institutional positions in Iron Mountain Inc as of Sep 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
1,056
+100 vs. Q2 2024
Shares held
242.6M
+22.7M (+10.3%) vs. Q2 2024
Total value
$28.8B
+$9.07B (+46.0%) vs. Q2 2024
New holders
165
323 more added
Sold out
65
416 more reduced

11 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2024: 1,056 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 heldQ3 2024: $28.8B
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, Q3 2024

Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q2 2024.

Institutions holding IRM in Q3 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Somerset Trust Co3,645$433.1K0.16%−97−2.6%Reduced
Onyx Bridge Wealth Group LLC3,644$433.0K0.07%−234−6.0%Reduced
Exchange Traded Concepts, LLC3,636$432.1K0.01%+3,564+4,950.0%Added
Panagora Asset Management Inc3,593$427.0K0.00%−6−0.2%Reduced
Curbstone Financial Management Corp3,590$426.6K0.09%+3,590New
Marex Group plc3,578$425.2K0.01%−68,522−95.0%Reduced
IFP Advisors, Inc3,565$423.6K0.02%+448+14.4%Added
Wolverine Trading, LLC3,622$422.8K0.01%−7,089−66.2%Reduced
TRUE Private Wealth Advisors3,532$419.7K0.05%−677−16.1%Reduced
Lebenthal Global Advisors, LLC3,526$419.0K0.09%−30−0.8%Reduced
Philadelphia Trust Co3,500$416.0K0.03%00.0%Unchanged
Buckingham Capital Management, Inc.3,483$413.9K0.05%00.0%Unchanged
Mission Wealth Management, LP3,481$413.6K0.01%+1,110+46.8%Added
Lokken Investment Group LLC3,474$412.8K0.17%00.0%Unchanged
Pure Financial Advisors, Inc.3,441$408.9K0.01%+3,441New
Beaumont Financial Advisors, LLC3,441$408.9K0.03%00.0%Unchanged
Oak Thistle LLC3,421$406.5K0.13%+3,421New
Geller Advisors LLC3,373$403.2K0.03%+96+2.9%Added
Cresset Asset Management, LLC3,388$402.6K0.00%00.0%Unchanged
Retirement Income Solutions, Inc3,350$398.1K0.09%00.0%Unchanged
MBB Public Markets I LLC3,330$395.7K0.03%−16,587−83.3%Reduced
Advisors Management Group Inc3,309$393.0K0.09%00.0%Unchanged
Jacobi Capital Management LLC3,300$392.2K0.03%+3+0.1%Added
Howland Capital Management LLC3,279$392.0K0.02%−927−22.0%Reduced
TrinityPoint Wealth, LLC3,238$384.7K0.06%+32+1.0%Added
Private Trust Co NA3,226$383.3K0.04%+68+2.2%Added
Strategic Wealth Partners, Ltd.3,210$381.4K0.04%−1,960−37.9%Reduced
Stratos Wealth Partners, LTD.3,186$378.6K0.01%+3,186New
Infrastructure Capital Advisors, LLC3,174$377.2K0.05%−38−1.2%Reduced
Twelve Points Wealth Management LLC3,152$374.6K0.12%−39,858−92.7%Reduced
Meeder Advisory Services, Inc.3,147$373.9K0.02%−148−4.5%Reduced
Sovereign Financial Group, Inc.3,142$373.4K0.09%00.0%Unchanged
Miracle Mile Advisors, LLC3,131$372.1K0.01%+45+1.5%Added
American Investment Services, Inc.3,103$368.7K0.06%00.0%Unchanged
Evergreen Capital Management LLC3,034$362.7K0.01%+167+5.8%Added
Keystone Wealth Services, LLC3,050$362.4K0.10%−208−6.4%Reduced
Cigna Investments Inc3,043$362.0K0.06%00.0%Unchanged
Clean Yield Group3,042$361.5K0.11%+42+1.4%Added
Aristeia Capital LLC3,038$361.0K0.01%+3,038New
Wedmont Private Capital3,077$359.3K0.02%+473+18.2%Added
Whittier Trust Co3,013$358.0K0.00%−1,864−38.2%Reduced
Change Path, LLC3,010$357.7K0.01%+3,010New
Apriem Advisors3,000$356.5K0.04%−200−6.3%Reduced
Crestwood Advisors Group LLC2,990$355.3K0.01%+52+1.8%Added
IMA Wealth, Inc.2,954$353.1K0.08%00.0%Unchanged
Ameritas Investment Partners, Inc.2,971$353.0K0.01%−114−3.7%Reduced
Capital City Trust Co2,940$349.4K0.09%00.0%Unchanged
Fifth Third Wealth Advisors LLC2,928$347.9K0.02%−52−1.7%Reduced
Charter Oak Capital Management, LLC2,920$347.0K0.03%+5+0.2%Added
Relyea Zuckerberg Hanson LLC2,916$346.6K0.05%+27+0.9%Added
Schechter Investment Advisors, LLC2,913$346.2K0.03%−15−0.5%Reduced
Schmidt P J Investment Management Inc2,860$339.9K0.06%+100+3.6%Added
Cypress Capital Group2,835$336.9K0.04%−400−12.4%Reduced
NorthCrest Asset Manangement, LLC2,826$335.8K0.01%00.0%Unchanged
Channel Wealth LLC2,818$334.9K0.11%−82−2.8%Reduced
Arkadios Wealth Advisors2,812$334.2K0.02%+158+6.0%Added
Cooper Financial Group2,812$334.1K0.04%−114−3.9%Reduced
Prospera Financial Services Inc2,808$333.8K0.01%+285+11.3%Added
Jordan Park Group LLC2,803$333.1K0.02%+2,803New
Dark Forest Capital Management LP2,780$330.3K0.04%+2,780New
Jones Financial Companies LLLP2,808$327.8K0.00%+2,177+345.0%Added
Premier Path Wealth Partners, LLC2,738$325.4K0.05%+129+4.9%Added
Daymark Wealth Partners, LLC2,734$324.9K0.01%−20−0.7%Reduced
Investment House LLC2,700$320.8K0.02%00.0%Unchanged
Seelaus Asset Management LLC2,700$320.8K0.29%00.0%Unchanged
Allen Investment Management LLC2,696$320.4K0.00%00.0%Unchanged
Aptus Capital Advisors, LLC2,693$320.0K0.00%−7−0.3%Reduced
Great Valley Advisor Group, Inc.2,679$318.8K0.01%+6+0.2%Added
Aberdeen Wealth Management LLC2,645$314.3K0.21%−232−8.1%Reduced
Seed Wealth Management, Inc.2,620$311.3K0.25%00.0%Unchanged
Robinson Smith Wealth Advisors LLC2,600$309.0K0.26%−900−25.7%Reduced
Segment Wealth Management, LLC2,600$309.0K0.02%00.0%Unchanged
Allen Mooney & Barnes Investment Advisors LLC2,596$308.4K0.05%−1,584−37.9%Reduced
Dynamic Advisor Solutions LLC2,589$307.6K0.01%−160−5.8%Reduced
Kestra Advisory Services, LLC2,580$306.5K0.00%−70,570−96.5%Reduced
Financial Advocates Investment Management2,576$306.1K0.02%−47−1.8%Reduced
Kovack Advisors, Inc.2,555$303.7K0.03%−269−9.5%Reduced
Perennial Investment Advisors, LLC2,549$302.9K0.04%+9+0.4%Added
Skopos Labs, Inc.2,527$300.3K0.10%+2+0.1%Added
Ausdal Financial Partners, Inc.2,494$296.3K0.03%+206+9.0%Added
Insigneo Advisory Services, LLC2,471$293.6K0.03%+26+1.1%Added
Mather Group, LLC.2,469$293.4K0.00%−1,545−38.5%Reduced
Naples Global Advisors, LLC2,450$293.1K0.03%−250−9.3%Reduced
Duncan Williams Asset Management, LLC2,453$291.5K0.16%+2,453New
Fielder Capital Group LLC2,439$289.9K0.10%+17+0.7%Added
Nwam LLC2,436$289.5K0.02%+2,436New
Bristlecone Advisors, LLC2,394$284.5K0.02%−10−0.4%Reduced
StoneX Group Inc.2,333$277.9K0.02%+2,333New
Dakota Wealth Management2,318$275.4K0.01%−19−0.8%Reduced
Bedel Financial Consulting, Inc.2,317$275.4K0.04%+10+0.4%Added
Carnegie Capital Asset Management, LLC2,305$273.9K0.01%00.0%Unchanged
Strategic Financial Concepts, LLC2,303$273.6K0.09%−230,948−99.0%Reduced
Pegasus Asset Management, Inc.2,300$273.3K0.10%00.0%Unchanged
Community Bank & Trust, Waco, Texas2,300$273.0K0.06%00.0%Unchanged
Ignite Planners, LLC2,284$271.4K0.06%−289−11.2%Reduced
Dynamic Technology Lab Private Ltd2,278$271.0K0.03%+2,278New
Ashton Thomas Private Wealth, LLC2,270$269.7K0.01%+651+40.2%Added
Pinkerton Retirement Specialists, LLC2,268$269.5K0.04%+2,268New
Liberty Wealth Management LLC2,262$269.0K0.05%+2,262New
Clark Capital Management Group, Inc.2,258$268.3K0.00%+2,258New