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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
Pinnacle Family Advisors, LLC5,477$650.9K0.34%+263+5.0%Added
Golden State Equity Partners5,415$643.5K0.10%00.0%Unchanged
Ballentine Partners, LLC5,393$640.9K0.01%+779+16.9%Added
Augustine Asset Management Inc5,324$632.7K0.22%+10+0.2%Added
American Assets Capital Advisers, LLC5,318$631.9K0.19%−67,216−92.7%Reduced
Secure Asset Management, LLC5,231$621.6K0.11%+196+3.9%Added
Meiji Yasuda Asset Management Co Ltd.5,203$618.3K0.02%+962+22.7%Added
Valued Retirements, Inc.5,198$617.7K0.85%00.0%Unchanged
Coastline Trust Co5,147$611.6K0.07%−97−1.8%Reduced
ClearAlpha Technologies LP5,128$609.4K0.26%+5,128New
NBC Securities, Inc.5,113$607.0K0.05%−280−5.2%Reduced
CAPROCK Group, Inc.5,049$604.6K0.02%+1,051+26.3%Added
NorthStar Asset Management LLC5,024$597.0K0.40%00.0%Unchanged
Personal Cfo Solutions, LLC5,013$595.7K0.08%−103−2.0%Reduced
Perfromance Wealth Partners, LLC5,007$595.0K0.02%00.0%Unchanged
West Wealth Group, LLC5,000$594.1K0.19%00.0%Unchanged
Quantbot Technologies LP4,987$592.6K0.02%−59,966−92.3%Reduced
Texas Yale Capital Corp.4,925$585.2K0.03%00.0%Unchanged
Jefferies Financial Group Inc.4,909$583.3K0.01%−364−6.9%Reduced
Financial Management Professionals, Inc.4,845$576.0K0.07%+71+1.5%Added
SFG Wealth Management, LLC.4,822$573.0K0.30%+20.0%Added
Summit Trail Advisors, LLC4,777$571.0K0.01%+4,777New
CX Institutional4,773$567.2K0.03%+29+0.6%Added
Yeomans Consulting Group, Inc.4,731$562.2K0.21%+4,731New
High Net Worth Advisory Group LLC4,692$557.6K0.16%00.0%Unchanged
Intrua Financial, LLC4,691$557.5K0.09%+388+9.0%Added
Qtron Investments LLC4,685$556.7K0.08%−4,300−47.9%Reduced
Pensionmark Financial Group, LLC4,664$554.2K0.02%+4,664New
Atalanta Sosnoff Capital, LLC4,645$552.0K0.01%00.0%Unchanged
Sigma Planning Corp4,601$546.8K0.02%−736−13.8%Reduced
True Vision MN LLC4,546$543.5K0.33%+485+11.9%Added
Goldstone Financial Group, LLC4,548$540.5K0.09%−88−1.9%Reduced
Armor Investment Advisors, LLC4,538$539.3K0.22%−195−4.1%Reduced
Welch Group, LLC4,531$538.4K0.02%00.0%Unchanged
Teamwork Financial Advisors, LLC4,502$535.0K0.07%−202−4.3%Reduced
Vontobel Holding Ltd.4,500$534.7K0.00%+4,500New
Scotia Capital Inc.4,492$533.9K0.00%−29−0.6%Reduced
Private Portfolio Partners LLC4,480$532.4K0.10%+4,480New
LifePro Asset Management4,458$529.7K0.32%+3+0.1%Added
Jackson Creek Investment Advisors LLC4,455$529.0K0.16%+4,455New
Summit Financial, LLC4,391$524.9K0.02%+204+4.9%Added
Hartford Funds Management Co LLC4,398$522.6K0.05%+354+8.8%Added
Edmp, Inc.4,387$521.3K0.43%00.0%Unchanged
Koshinski Asset Management, Inc.4,370$519.3K0.04%+34+0.8%Added
Stephens Inc4,360$518.1K0.01%+3+0.1%Added
Perigon Wealth Management, LLC4,338$515.5K0.01%+160+3.8%Added
Armstrong Advisory Group, Inc4,335$515.1K0.04%00.0%Unchanged
Blake Schutter Theil Wealth Advisors, LLC4,322$513.6K0.37%+4,322New
Sculati Wealth Management, LLC4,320$513.3K0.20%−550−11.3%Reduced
Raleigh Capital Management Inc.4,303$511.3K0.20%+107+2.6%Added
Atomi Financial Group, Inc.4,276$508.2K0.03%+396+10.2%Added
NCP Inc.4,259$506.0K0.29%+21+0.5%Added
L.M. Kohn & Company4,242$504.1K0.13%−245−5.5%Reduced
Keystone Financial Group4,221$501.5K0.06%+1,370+48.1%Added
Jump Financial, LLC4,220$501.5K0.01%+1,265+42.8%Added
Westpac Banking Corp4,205$499.7K0.03%00.0%Unchanged
Kovitz Investment Group Partners, LLC4,162$494.6K0.00%+773+22.8%Added
Kavar Capital Partners Group, LLC4,150$493.1K0.08%00.0%Unchanged
Richard W. Paul & Associates, LLC4,125$490.2K0.18%−205−4.7%Reduced
Cornerstone Wealth Management, LLC4,119$489.4K0.03%+10.0%Added
Disciplined Equity Management, Inc.4,085$485.4K0.31%00.0%Unchanged
Bogart Wealth, LLC4,083$485.2K0.02%−75−1.8%Reduced
Fayez Sarofim & Co4,080$484.8K0.00%−637−13.5%Reduced
Advisors Capital Management, LLC4,067$483.0K0.01%+23+0.6%Added
Trustmark National Bank Trust Department4,041$480.2K0.04%−184−4.4%Reduced
Aspen Investment Management Inc4,035$479.0K0.22%+775+23.8%Added
Sachetta, LLC4,022$478.1K0.19%00.0%Unchanged
Citizens Business Bank4,000$475.3K0.10%00.0%Unchanged
Horizon Investments, LLC3,980$472.9K0.01%−558−12.3%Reduced
Householder Group Estate & Retirement Specialist, LLC3,956$470.0K0.14%+96+2.5%Added
Southland Equity Partners LLC3,932$467.2K0.11%−889−18.4%Reduced
Moneta Group Investment Advisors LLC3,921$465.9K0.01%+250+6.8%Added
Core Wealth Partners LLC3,917$465.4K0.28%+12+0.3%Added
RMR Wealth Builders3,891$465.2K0.05%−253−6.1%Reduced
Park National Corp3,905$464.0K0.02%00.0%Unchanged
Abn Amro Investment Solutions3,901$463.6K0.01%+3,901New
Cornerstone Wealth Group, LLC3,888$462.0K0.04%+4+0.1%Added
LMR Partners LLP3,886$461.8K0.01%−12,241−75.9%Reduced
Ameritas Advisory Services, LLC3,878$460.8K0.02%−67−1.7%Reduced
Aire Advisors, LLC3,873$460.3K0.10%+25+0.6%Added
Prestige Wealth Management Group LLC3,846$459.8K0.10%+3,712+2,770.1%Added
Cetera Trust Company, N.A3,850$457.5K0.28%−200−4.9%Reduced
Walker Asset Management, LLC3,848$457.3K0.28%+27+0.7%Added
Sienna Gestion3,844$455.7K0.03%00.0%Unchanged
Vident Advisory, LLC3,820$453.9K0.01%+667+21.2%Added
RMB Capital Management, LLC3,814$453.2K0.01%−391−9.3%Reduced
Ledgewood Wealth Advisors, LLC3,806$452.3K0.30%00.0%Unchanged
Highland Capital Management Fund Advisors, L.P.3,800$451.6K0.05%00.0%Unchanged
GAMMA Investing LLC3,794$450.8K0.04%+815+27.4%Added
OneAscent Wealth Management LLC3,765$450.0K0.17%+176+4.9%Added
Crown Wealth Group, LLC3,746$445.1K0.19%−615−14.1%Reduced
Huntington National Bank3,730$443.2K0.00%−118−3.1%Reduced
Strategic Blueprint, LLC3,720$442.0K0.03%−13−0.3%Reduced
Foster & Motley Inc3,720$442.0K0.03%−897−19.4%Reduced
Destination Wealth Management3,707$440.4K0.01%+761+25.8%Added
Parallel Advisors, LLC3,705$440.4K0.01%+488+15.2%Added
E&G Advisors, LP3,700$439.7K0.12%00.0%Unchanged
Chicago Partners Investment Group LLC3,478$436.6K0.02%+191+5.8%Added
Capital Wealth Planning, LLC3,655$434.3K0.00%+3,655New
Good Life Advisors, LLC3,646$433.3K0.03%+1,352+58.9%Added