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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, Q1 2024

Institutional positions in Iron Mountain Inc as of Mar 31, 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
938
+57 vs. Q4 2023
Shares held
237.3M
+3.71M (+1.6%) vs. Q4 2023
Total value
$19.0B
+$2.65B (+16.2%) vs. Q4 2023
New holders
126
310 more added
Sold out
69
328 more reduced

10 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2023: 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 holdersQ1 2024: 938 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 heldQ1 2024: $19.0B
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, Q1 2024

Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q4 2023.

Institutions holding IRM in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
NewEdge Wealth, LLC9,071$698.4K0.02%−638−6.6%Reduced
FCG Investment Co8,697$697.6K0.56%−2,912−25.1%Reduced
Everence Capital Management Inc8,670$695.0K0.05%00.0%Unchanged
Heartland Bank & Trust Co8,613$690.8K0.40%−25−0.3%Reduced
Equitable Holdings, Inc.8,611$690.7K0.01%−13−0.2%Reduced
Atlas Capital Advisors LLC8,526$683.9K0.11%00.0%Unchanged
Atlantic Union Bankshares Corp8,421$675.4K0.06%−673−7.4%Reduced
Armor Investment Advisors, LLC8,419$675.3K0.32%−1,107−11.6%Reduced
Global Retirement Partners, LLC8,347$669.5K0.02%−869−9.4%Reduced
Atwood & Palmer Inc8,250$661.7K0.05%00.0%Unchanged
H&H Retirement Design & Management INC8,697$659.7K0.44%00.0%Unchanged
Coastal Investment Advisors, Inc.8,134$652.4K0.13%−201−2.4%Reduced
Outlook Wealth Advisors, LLC8,126$651.8K0.20%−835−9.3%Reduced
Merit Financial Group, LLC8,653$651.7K0.02%−25−0.3%Reduced
NorthRock Partners, LLC8,005$646.5K0.02%+173+2.2%Added
Qtron Investments LLC8,043$645.1K0.09%+8,043New
Madden Securities Corp7,950$637.7K0.29%−725−8.4%Reduced
Belpointe Asset Management LLC7,891$633.0K0.05%−142−1.8%Reduced
Rakuten Investment Management, Inc.7,852$629.8K0.00%+7,130+987.5%Added
V-Square Quantitative Management LLC7,801$625.7K0.10%+1,184+17.9%Added
GM Advisory Group, Inc.7,736$620.5K0.04%00.0%Unchanged
Norris Financial Group, LLC7,736$620.5K0.34%+3,600+87.0%Added
TD Waterhouse Canada Inc.6,527$615.2K0.00%+998+18.1%Added
Raymond James Trust N.A.7,437$596.5K0.01%−1,170−13.6%Reduced
Integrated Advisors Network LLC7,423$595.4K0.03%−536−6.7%Reduced
Beverly Hills Private Wealth, LLC7,393$593.0K0.14%−485−6.2%Reduced
SeaCrest Wealth Management, LLC7,264$582.6K0.07%−270−3.6%Reduced
Fiduciary Group LLC7,250$581.5K0.06%00.0%Unchanged
Greenleaf Trust7,157$574.1K0.01%−37−0.5%Reduced
Sequoia Financial Advisors, LLC7,073$567.4K0.01%−3,168−30.9%Reduced
TBH Global Asset Management, LLC7,022$563.3K0.11%+9+0.1%Added
One Capital Management, LLC6,949$557.4K0.02%+6,949New
NEOS Investment Management LLC6,873$551.3K0.03%+2,749+66.7%Added
J.W. Cole Advisors, Inc.6,850$549.2K0.03%+106+1.6%Added
Glenmede Trust Co NA6,843$548.9K0.00%−69−1.0%Reduced
Diversify Advisory Services, LLC6,841$544.1K0.03%+6,841New
Wolverine Trading, LLC6,773$543.3K0.01%+6,773New
Washington Trust Co6,761$542.3K0.02%00.0%Unchanged
Centaurus Financial, Inc.6,732$540.0K0.04%−20.0%Reduced
DCM Advisors, LLC6,680$535.8K0.22%+164+2.5%Added
Lido Advisors, LLC6,593$533.1K0.00%+1,731+35.6%Added
Sigma Planning Corp6,622$531.2K0.02%+2,813+73.9%Added
Quadcap Wealth Management, LLC6,605$529.8K0.12%+6,605New
Kingsview Wealth Management, LLC6,579$527.7K0.01%−889−11.9%Reduced
Brinker Capital Investments, LLC6,481$519.8K0.01%+2,256+53.4%Added
Orion Portfolio Solutions, LLC6,481$519.8K0.01%+2,256+53.4%Added
Accuvest Global Advisors6,473$519.0K0.23%00.0%Unchanged
Sheets Smith Wealth Management6,460$518.2K0.06%00.0%Unchanged
Bessemer Group Inc6,461$518.0K0.00%+781+13.8%Added
Coldstream Capital Management Inc6,432$515.9K0.01%−143−2.2%Reduced
TownSquare Capital, LLC6,369$510.8K0.01%+556+9.6%Added
Gerber Kawasaki Wealth & Investment Management6,342$508.7K0.03%+61+1.0%Added
Zimmermann Investment Management & Planning LLC6,308$506.0K0.18%+308+5.1%Added
Flagship Harbor Advisors, LLC6,295$504.9K0.03%−91−1.4%Reduced
Estabrook Capital Management6,237$500.3K0.08%−140−2.2%Reduced
Hilltop Holdings Inc.6,182$495.9K0.06%+22+0.4%Added
HB Wealth Management, LLC6,164$494.4K0.01%+90+1.5%Added
Veriti Management LLC6,114$490.4K0.04%+356+6.2%Added
Swiss Life Asset Management Ltd6,078$487.5K0.01%−66,136−91.6%Reduced
CWM, LLC6,052$485.0K0.00%−706−10.4%Reduced
Essex Financial Services, Inc.6,022$483.0K0.04%−10,465−63.5%Reduced
Ellevest, Inc.5,916$474.5K0.03%+696+13.3%Added
Alberta Investment Management Corp5,900$473.2K0.00%00.0%Unchanged
Garden State Investment Advisory Services LLC5,839$471.2K0.17%−316−5.1%Reduced
Kapstone Financial Advisors LLC5,788$464.3K0.32%00.0%Unchanged
Resources Investment Advisors, LLC.5,624$451.1K0.01%+153+2.8%Added
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management5,609$449.9K0.01%−771−12.1%Reduced
Essex Savings Bank6,290$440.1K0.13%00.0%Unchanged
Verition Fund Management LLC5,484$439.9K0.00%−3,756−40.6%Reduced
Fayez Sarofim & Co5,472$438.9K0.00%−940−14.7%Reduced
NBC Securities, Inc.5,427$435.0K0.04%−105−1.9%Reduced
First Dallas Securities Inc.5,350$429.0K0.20%−1,275−19.2%Reduced
BancorpSouth Bank5,318$426.6K0.03%00.0%Unchanged
Koshinski Asset Management, Inc.5,310$425.9K0.04%+1,135+27.2%Added
Signaturefd, LLC5,252$421.3K0.01%+345+7.0%Added
Coastline Trust Co5,244$420.6K0.05%−67−1.3%Reduced
Pinnacle Family Advisors, LLC5,226$419.1K0.22%+24+0.5%Added
Valued Retirements, Inc.5,198$416.9K0.67%00.0%Unchanged
Keybank National Association5,195$416.7K0.00%+144+2.9%Added
Allen Mooney & Barnes Investment Advisors LLC5,430$416.0K0.08%−431−7.4%Reduced
Foster & Motley Inc5,156$414.0K0.03%−1,671−24.5%Reduced
Augustine Asset Management Inc5,154$413.4K0.17%−1,022−16.5%Reduced
Choate Investment Advisors5,107$409.6K0.01%−150−2.9%Reduced
SFG Wealth Management, LLC.5,052$405.2K0.24%+20.0%Added
Private Portfolio Partners LLC5,030$403.5K0.08%−584−10.4%Reduced
NorthStar Asset Management LLC5,024$403.0K0.31%00.0%Unchanged
Personal Cfo Solutions, LLC5,009$401.8K0.06%+510+11.3%Added
West Wealth Group, LLC5,000$401.1K0.15%00.0%Unchanged
Intrua Financial, LLC4,981$399.5K0.06%−70−1.4%Reduced
Dorsey Wright & Associates4,967$398.0K0.10%−37−0.7%Reduced
Texas Yale Capital Corp.4,925$395.0K0.02%00.0%Unchanged
Advisors Preferred, LLC4,951$393.8K0.07%−1,377−21.8%Reduced
Perfromance Wealth Partners, LLC4,889$392.1K0.02%00.0%Unchanged
Sculati Wealth Management, LLC4,870$390.6K0.17%−502−9.3%Reduced
Kingswood Wealth Advisors, LLC4,865$390.2K0.05%−421−8.0%Reduced
Atalanta Sosnoff Capital, LLC4,863$390.1K0.01%−521−9.7%Reduced
CX Institutional4,757$381.6K0.02%+29+0.6%Added
Cornerstone Wealth Management, LLC4,744$380.5K0.03%+10.0%Added
Southland Equity Partners LLC4,742$380.3K0.11%−527−10.0%Reduced
Teamwork Financial Advisors, LLC4,705$377.4K0.06%−36−0.8%Reduced