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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 2022

Institutional positions in Iron Mountain Inc as of Sep 30, 2022. 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
743
−9 vs. Q2 2022
Shares held
227.0M
+3.02M (+1.4%) vs. Q2 2022
Total value
$10.0B
−$913.1M (−8.4%) vs. Q2 2022
New holders
64
289 more added
Sold out
73
256 more reduced

15 institutions that held it in Q2 2022 haven't filed for Q3 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2022: 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 2022: 743 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 2022: $10.0B
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 2022

Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q2 2022.

Institutions holding IRM in Q3 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Meeder Asset Management Inc12,455$547.0K0.03%−1,183−8.7%Reduced
Lincoln National Corp12,347$543.0K0.01%+992+8.7%Added
Focus Financial Network, Inc.12,113$540.1K0.05%+408+3.5%Added
HM Payson & Co12,264$539.0K0.01%00.0%Unchanged
Sigma Planning Corp12,067$531.0K0.02%+164+1.4%Added
Archer Investment Corp12,000$527.6K0.22%00.0%Unchanged
Fayez Sarofim & Co11,965$526.0K0.00%00.0%Unchanged
E. Ohman J:or Asset Management AB11,953$525.6K0.02%00.0%Unchanged
Mathes Company, Inc.11,950$525.0K0.29%−1,900−13.7%Reduced
Chiron Investment Management, LLC11,908$524.0K0.11%+11,908New
Strategic Investment Advisors11,900$523.0K0.12%+92+0.8%Added
Retirement Planning Co of New England, Inc.11,885$522.0K0.38%+170+1.5%Added
Cary Street Partner Investment Advisory LLC11,725$516.0K0.04%+1,538+15.1%Added
Wetherby Asset Management Inc11,670$513.0K0.04%−3,880−25.0%Reduced
APG Asset Management N.V.11,405$512.0K0.00%−400−3.4%Reduced
Delta Capital Management LLC11,510$506.0K0.41%−700−5.7%Reduced
BTC Capital Management, Inc.11,496$506.0K0.07%+523+4.8%Added
Wellington Shields & Co., LLC11,483$505.0K0.22%00.0%Unchanged
Contravisory Investment Management, Inc.11,399$501.0K0.17%−296−2.5%Reduced
Bank of the West11,340$499.0K0.06%00.0%Unchanged
Outlook Wealth Advisors, LLC11,346$499.0K0.22%+28+0.2%Added
TFG Advisers LLC11,317$498.0K0.28%+4,995+79.0%Added
Moody Lynn & Lieberson, LLC11,272$496.0K0.05%+2,783+32.8%Added
Tudor Investment Corp Et Al11,163$491.0K0.01%+11,163New
Proequities, Inc.10,986$490.0K0.05%+155+1.4%Added
Bailard, Inc.11,116$489.0K0.02%+858+8.4%Added
Pegasus Asset Management, Inc.11,060$486.0K0.27%−435−3.8%Reduced
Independent Financial Group, LLC11,007$484.0K0.04%+550+5.3%Added
Cerity Partners LLC10,829$477.0K0.01%−1,092−9.2%Reduced
Hunter Associates Investment Management LLC10,900$477.0K0.12%00.0%Unchanged
Redhawk Wealth Advisors, Inc.10,848$477.0K0.20%+1,747+19.2%Added
Atlantic Private Wealth, LLC10,852$477.0K0.54%+10,852New
Northwestern Mutual Investment Management Company, LLC10,796$475.0K0.01%−817−7.0%Reduced
Armor Investment Advisors, LLC10,718$471.0K0.32%−875−7.5%Reduced
United Services Automobile Association10,601$466.0K0.01%00.0%Unchanged
TRUE Private Wealth Advisors10,562$464.0K0.07%+20.0%Added
American Institute for Advanced Investment Management, LLP10,555$464.0K0.43%+10,555New
Segall Bryant & Hamill, LLC10,446$459.0K0.01%+2,454+30.7%Added
Pearl River Capital, LLC10,445$459.0K0.09%+10,445New
Kentucky Retirement Systems Insurance Trust Fund10,417$458.0K0.04%+490+4.9%Added
Coastal Investment Advisors, Inc.10,388$457.0K0.12%+463+4.7%Added
Assenagon Asset Management S.A.10,167$447.0K0.00%+10,167New
Plimoth Trust Co LLC10,078$443.0K0.15%00.0%Unchanged
Montag A & Associates Inc9,894$441.0K0.03%−149−1.5%Reduced
Demars Financial Group, LLC10,005$440.0K0.26%−100−1.0%Reduced
PEAK6 Investments LLC10,010$440.0K0.02%+4,155+71.0%Added
FDx Advisors, Inc.9,971$438.0K0.02%−333−3.2%Reduced
Rational Advisors LLC9,966$438.0K0.03%+9,966New
Wealthcare Advisory Partners LLC9,929$437.0K0.02%−343−3.3%Reduced
Lazard Asset Management LLC9,923$436.0K0.00%−121−1.2%Reduced
Park Avenue Securities LLC9,865$434.0K0.01%−581−5.6%Reduced
Atlantic Union Bankshares Corp9,794$431.0K0.05%−146−1.5%Reduced
Dai-Ichi Life Insurance Company, Ltd9,805$431.0K0.01%00.0%Unchanged
Steward Partners Investment Advisory, LLC9,782$430.0K0.01%+1,445+17.3%Added
Founders Financial Alliance, LLC9,720$427.0K0.22%+9,720New
Wedbush Securities Inc9,588$422.0K0.02%+74+0.8%Added
Colonial River Wealth Management, LLC9,526$419.0K0.29%−534−5.3%Reduced
Brookfield Asset Management Inc.9,512$418.0K0.00%+9,512New
Heartland Bank & Trust Co9,334$410.0K0.39%−146−1.5%Reduced
Merit Financial Group, LLC9,304$409.0K0.02%−308−3.2%Reduced
Morse Asset Management, Inc9,250$407.0K0.15%+100+1.1%Added
Penserra Capital Management LLC9,270$407.0K0.01%+796+9.4%Added
Herold Advisors, Inc.9,150$402.0K0.20%00.0%Unchanged
Atlas Capital Advisors LLC9,133$401.6K0.07%+38+0.4%Added
Verus Capital Partners, LLC8,967$394.0K0.07%+5,206+138.4%Added
Federation des caisses Desjardins du Quebec8,929$392.6K0.00%−200−2.2%Reduced
Aspire Private Capital, LLC8,889$391.0K0.15%+376+4.4%Added
Estabrook Capital Management8,716$383.2K0.07%00.0%Unchanged
Fiduciary Group LLC7,250$381.0K0.05%00.0%Unchanged
Csenge Advisory Group8,529$375.0K0.03%−13−0.2%Reduced
H&H Retirement Design & Management INC8,425$372.0K0.35%+101+1.2%Added
Prudential PLC8,390$369.0K0.01%+646+8.3%Added
WealthBridge Capital Management, LLC7,556$368.0K0.16%00.0%Unchanged
Dowling & Yahnke LLC8,321$366.0K0.02%−981−10.5%Reduced
Atwood & Palmer Inc8,250$363.0K0.04%00.0%Unchanged
Gsa Capital Partners LLP8,240$362.0K0.05%+8,240New
Clear Street Markets LLC8,200$361.0K0.07%+5,492+202.8%Added
Teamwork Financial Advisors, LLC8,090$356.0K0.08%+1,544+23.6%Added
SFG Wealth Management, LLC.8,052$354.0K0.48%+30.0%Added
Thompson Davis & Co., Inc.8,000$352.0K0.48%00.0%Unchanged
Black Swift Group, LLC7,975$350.0K0.17%00.0%Unchanged
Vestmark Advisory Solutions, Inc.7,936$349.0K0.02%+328+4.3%Added
M Holdings Securities, Inc.7,822$344.0K0.04%−85−1.1%Reduced
Sheets Smith Wealth Management7,580$333.0K0.06%00.0%Unchanged
Raymond James Trust N.A.7,529$331.0K0.01%−57−0.8%Reduced
Scotia Capital Inc.7,490$329.0K0.00%−5,616−42.9%Reduced
Ieq Capital, LLC7,487$329.0K0.01%+1,182+18.7%Added
Augustine Asset Management Inc7,256$319.0K0.21%−122−1.7%Reduced
TBH Global Asset Management, LLC7,254$319.0K0.08%+12+0.2%Added
Naviter Wealth, LLC7,153$319.0K0.13%+7,153New
All Season Financial Advisors, Inc.7,218$317.0K0.34%+289+4.2%Added
Veritable, L.P.7,106$312.0K0.01%+410+6.1%Added
Gerber Kawasaki Wealth & Investment Management7,031$309.0K0.03%00.0%Unchanged
IHT Wealth Management, LLC7,031$309.0K0.02%+2,914+70.8%Added
SeaCrest Wealth Management, LLC7,007$308.0K0.05%−749−9.7%Reduced
Investors Research Corp6,954$306.0K0.09%00.0%Unchanged
TD Ameritrade Investment Management, LLC6,933$305.0K0.00%−1,671−19.4%Reduced
Banco Bilbao Vizcaya Argentaria, S.A.6,929$305.0K0.00%−105−1.5%Reduced
Integrated Advisors Network LLC6,919$304.0K0.02%+1,081+18.5%Added
Vestcor Inc6,844$301.0K0.01%−30,174−81.5%Reduced