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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
Monument Capital Management9,107$1.08M0.30%−587−6.1%Reduced
Ullmann Financial Group, Inc.9,075$1.08M0.14%+51+0.6%Added
Colonial River Wealth Management, LLC9,021$1.07M0.53%−225−2.4%Reduced
Virtus ETF Advisers LLC8,989$1.07M0.50%+8,989New
Wetherby Asset Management Inc8,941$1.06M0.05%+198+2.3%Added
H&H Retirement Design & Management INC8,697$1.06M0.63%00.0%Unchanged
Associated Banc-Corp8,863$1.05M0.03%+8,863New
Global Retirement Partners, LLC8,852$1.05M0.03%−317−3.5%Reduced
Herold Advisors, Inc.8,755$1.04M0.23%00.0%Unchanged
Kentucky Retirement Systems Insurance Trust Fund8,685$1.03M0.07%−770−8.1%Reduced
Everence Capital Management Inc8,670$1.03M0.06%00.0%Unchanged
Axecap Investments, LLC8,634$1.03M0.78%+8,634New
Fortitude Family Office, LLC8,548$1.02M0.40%+7,075+480.3%Added
Brown Brothers Harriman & Co8,535$1.01M0.01%+6+0.1%Added
Atlas Capital Advisors LLC8,526$1.01M0.16%+1,251+17.2%Added
NewEdge Wealth, LLC8,456$1.00M0.02%−537−6.0%Reduced
Capital Investment Advisory Services, LLC8,455$1.00M0.10%−2,787−24.8%Reduced
Heartland Bank & Trust Co8,406$998.9K0.54%−275−3.2%Reduced
Checchi Capital Advisers, LLC8,344$991.5K0.07%−504−5.7%Reduced
Diversify Advisory Services, LLC7,942$983.8K0.05%+1,091+15.9%Added
Atwood & Palmer Inc8,250$980.3K0.07%00.0%Unchanged
Essex Financial Services, Inc.7,844$971.7K0.07%−996−11.3%Reduced
Atlantic Union Bankshares Corp8,171$971.0K0.06%−250−3.0%Reduced
Mathes Company, Inc.8,150$968.0K0.34%00.0%Unchanged
Integrated Advisors Network LLC8,131$966.2K0.05%−29−0.4%Reduced
Wiley Bros.-Aintree Capital, LLC8,294$964.8K0.02%+8,294New
Bailard, Inc.8,057$957.4K0.02%00.0%Unchanged
Profund Advisors LLC8,019$952.9K0.04%+3,333+71.1%Added
Veriti Management LLC7,987$949.1K0.05%−46−0.6%Reduced
Brinker Capital Investments, LLC7,963$946.3K0.01%+2,021+34.0%Added
Orion Portfolio Solutions, LLC7,963$946.3K0.01%+2,021+34.0%Added
Equitable Holdings, Inc.7,932$942.6K0.01%−573−6.7%Reduced
Flagship Harbor Advisors, LLC7,929$942.3K0.05%+1,646+26.2%Added
Jaffetilchin Investment Partners, LLC7,919$941.0K0.07%−3,057−27.9%Reduced
Ontario Teachers Pension Plan Board7,873$935.5K0.01%+7,873New
Wedbush Securities Inc7,839$932.0K0.03%−3,735−32.3%Reduced
TBH Global Asset Management, LLC7,838$931.4K0.20%+7+0.1%Added
Eqis Capital Management, Inc.7,832$930.7K0.07%−910−10.4%Reduced
Archer Investment Corp7,800$926.9K0.25%−2,200−22.0%Reduced
Merit Financial Group, LLC7,796$926.4K0.02%−817−9.5%Reduced
Sterling Capital Management LLC7,795$926.3K0.01%+7,795New
GM Advisory Group, Inc.7,789$925.6K0.06%−280−3.5%Reduced
CWM, LLC7,690$914.0K0.00%+45+0.6%Added
Fiduciary Family Office, LLC7,665$910.8K0.30%−670−8.0%Reduced
Sequoia Financial Advisors, LLC7,646$908.8K0.01%−289−3.6%Reduced
Tokio Marine Asset Management Co Ltd7,573$899.9K0.04%+7,573New
Mindset Wealth Management, LLC7,561$898.5K0.37%+7,561New
Outlook Wealth Advisors, LLC7,503$891.6K0.26%−502−6.3%Reduced
Badgley Phelps Wealth Managers, LLC7,451$890.7K0.02%00.0%Unchanged
Greenleaf Trust7,386$877.7K0.01%+230+3.2%Added
Madden Securities Corp7,375$876.4K0.38%00.0%Unchanged
Hilltop Holdings Inc.7,296$866.9K0.06%+1,134+18.4%Added
U.S. Capital Wealth Advisors, LLC7,276$864.6K0.03%−20,354−73.7%Reduced
Fiduciary Group LLC7,250$861.5K0.09%00.0%Unchanged
Belpointe Asset Management LLC7,138$848.3K0.05%−494−6.5%Reduced
Strategy Asset Managers LLC7,101$843.8K0.16%+7,101New
Coldstream Capital Management Inc7,105$842.9K0.02%+497+7.5%Added
Balyasny Asset Management LLC7,054$838.2K0.00%−13,395−65.5%Reduced
Bryn Mawr Trust Co7,047$837.4K0.02%+7,047New
Verdence Capital Advisors LLC7,030$835.3K0.07%+2,726+63.3%Added
Ellevest, Inc.7,002$832.0K0.05%+525+8.1%Added
Friedenthal Financial6,931$823.6K0.48%+6,931New
Washington Trust Co6,886$818.3K0.03%−125−1.8%Reduced
Bramshill Investments, LLC6,813$809.6K0.09%−4,215−38.2%Reduced
Glenmede Trust Co NA6,813$809.6K0.00%+7+0.1%Added
V-Square Quantitative Management LLC6,805$808.6K0.12%+37+0.5%Added
Quadcap Wealth Management, LLC6,689$794.9K0.12%+74+1.1%Added
Beverly Hills Private Wealth, LLC6,649$790.1K0.16%−920−12.2%Reduced
Centaurus Financial, Inc.6,557$779.0K0.05%−154−2.3%Reduced
Catalytic Wealth RIA, LLC6,530$776.0K0.14%−11,254−63.3%Reduced
Accuvest Global Advisors6,473$769.2K0.66%+6,473New
Sheets Smith Wealth Management6,410$761.7K0.09%−50−0.8%Reduced
SeaCrest Wealth Management, LLC6,386$758.8K0.08%−714−10.1%Reduced
Raymond James Trust N.A.6,293$747.8K0.02%−276−4.2%Reduced
Perpetual Ltd6,290$747.4K0.01%−6,690−51.5%Reduced
Fidelis Capital Partners, LLC5,935$745.1K0.09%+3,821+180.7%Added
NorthRock Partners, LLC6,227$742.4K0.02%−1,170−15.8%Reduced
Nations Financial Group Inc,6,200$736.8K0.05%+2,801+82.4%Added
Concurrent Investment Advisors, LLC6,175$733.8K0.02%−1,996−24.4%Reduced
Gerber Kawasaki Wealth & Investment Management6,166$732.7K0.03%−228−3.6%Reduced
DCM Advisors, LLC6,144$730.1K0.37%−552−8.2%Reduced
Keybank National Association6,111$726.2K0.00%+526+9.4%Added
Zimmermann Investment Management & Planning LLC6,075$721.9K0.22%+75+1.3%Added
EWG Elevate Inc.6,062$720.4K0.29%−803−11.7%Reduced
Estabrook Capital Management6,037$717.4K0.11%−200−3.2%Reduced
Signaturefd, LLC6,026$716.1K0.01%+677+12.7%Added
Resources Investment Advisors, LLC.5,986$711.4K0.01%+89+1.5%Added
Wambolt & Associates, LLC5,966$705.4K0.19%−3,449−36.6%Reduced
Retireful, LLC5,891$700.0K0.52%+5,891New
GTS Securities LLC5,886$699.4K0.01%+5,886New
Essex Savings Bank5,859$696.2K0.17%−55−0.9%Reduced
Kingsview Wealth Management, LLC5,833$693.1K0.01%−634−9.8%Reduced
Caldwell Investment Management Ltd.5,900$688.4K0.48%+5,900New
Arete Wealth Advisors, LLC5,740$679.0K0.06%−2,155−27.3%Reduced
Garden State Investment Advisory Services LLC5,662$676.7K0.22%00.0%Unchanged
Davis R M Inc5,686$675.7K0.01%00.0%Unchanged
Kapstone Financial Advisors LLC5,788$675.6K0.41%00.0%Unchanged
Catalyst Funds Management Pty Ltd5,648$671.2K0.15%+5,648New
ORG Partners LLC5,603$666.0K0.11%+3,994+248.2%Added
Gateway Advisory, LLC5,479$651.1K0.10%+5,479New