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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, Q2 2023

Institutional positions in Iron Mountain Inc as of Jun 30, 2023. 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
817
+35 vs. Q1 2023
Shares held
227.1M
+1.66M (+0.7%) vs. Q1 2023
Total value
$12.9B
+$954.9M (+8.0%) vs. Q1 2023
New holders
86
284 more added
Sold out
51
292 more reduced

8 institutions that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2023: 817 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 heldQ2 2023: $12.9B
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, Q2 2023

Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q1 2023.

Institutions holding IRM in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Marshall Wace, LLP6,600$375.0K0.00%−2,657−28.7%Reduced
E&G Advisors, LP6,625$376.4K0.13%00.0%Unchanged
Coldstream Capital Management Inc6,691$380.2K0.01%+96+1.5%Added
O'Shaughnessy Asset Management, LLC6,797$386.2K0.01%+381+5.9%Added
Sculati Wealth Management, LLC6,801$386.4K0.19%00.0%Unchanged
Sheets Smith Wealth Management6,905$392.3K0.06%00.0%Unchanged
Foundations Investment Advisors, LLC6,940$394.3K0.01%+2,164+45.3%Added
Investors Research Corp6,954$395.1K0.10%00.0%Unchanged
Ieq Capital, LLC6,963$395.7K0.01%−1,700−19.6%Reduced
Ullmann Financial Group, Inc.7,076$402.1K0.08%+82+1.2%Added
Gerber Kawasaki Wealth & Investment Management7,091$402.9K0.03%00.0%Unchanged
Greenleaf Trust7,101$403.5K0.00%−342−4.6%Reduced
Kingsview Wealth Management, LLC7,107$403.8K0.02%−36−0.5%Reduced
Hudson Valley Investment Advisors Inc7,145$406.0K0.05%00.0%Unchanged
Glenmede Trust Co NA7,710$407.9K0.00%00.0%Unchanged
SeaCrest Wealth Management, LLC7,206$409.4K0.05%−238−3.2%Reduced
Fiduciary Group LLC7,250$411.9K0.05%00.0%Unchanged
TBH Global Asset Management, LLC7,291$414.3K0.08%+12+0.2%Added
Augustine Asset Management Inc7,295$414.5K0.19%−115−1.6%Reduced
Great Lakes Advisors, LLC7,478$424.9K0.00%+7,478New
Oppenheimer & Co Inc7,481$425.1K0.01%+1,092+17.1%Added
TownSquare Capital, LLC7,482$425.1K0.01%−399−5.1%Reduced
Checchi Capital Advisers, LLC7,545$428.7K0.04%+314+4.3%Added
Arete Wealth Advisors, LLC7,580$431.0K0.04%−816−9.7%Reduced
Integrated Advisors Network LLC7,655$434.9K0.03%+71+0.9%Added
Bessemer Group Inc7,666$436.0K0.00%+3,038+65.6%Added
Scotia Capital Inc.7,721$438.7K0.00%00.0%Unchanged
Raymond James Trust N.A.7,811$444.0K0.01%−258−3.2%Reduced
Brown Advisory Inc7,865$446.9K0.00%−158−2.0%Reduced
Kapitalo Investimentos Ltda7,930$450.6K0.08%+7,930New
Thompson Davis & Co., Inc.8,000$454.6K0.51%00.0%Unchanged
Everence Capital Management Inc8,670$463.0K0.04%00.0%Unchanged
Atlas Capital Advisors LLC8,171$464.3K0.07%00.0%Unchanged
Atwood & Palmer Inc8,250$468.8K0.04%00.0%Unchanged
Estabrook Capital Management8,273$470.1K0.08%−100−1.2%Reduced
Ossiam8,303$471.8K0.01%+12+0.1%Added
TCG Advisory Services, LLC8,316$472.5K0.08%+8,316New
Sigma Planning Corp8,455$480.5K0.02%−5,989−41.5%Reduced
Formidable Asset Management, LLC8,457$481.0K0.10%−7,215−46.0%Reduced
Wellington Shields & Co., LLC8,533$484.8K0.11%−2,950−25.7%Reduced
Heartland Bank & Trust Co8,540$485.2K0.38%−788−8.4%Reduced
Dai-Ichi Life Insurance Company, Ltd8,573$487.1K0.01%−423−4.7%Reduced
Madden Securities Corp8,725$495.8K0.25%−1,750−16.7%Reduced
Herold Advisors, Inc.8,751$497.2K0.15%−499−5.4%Reduced
IHT Wealth Management, LLC8,760$497.8K0.03%+505+6.1%Added
Wetherby Asset Management Inc8,805$500.3K0.03%−436−4.7%Reduced
H&H Retirement Design & Management INC8,610$508.9K0.34%+87+1.0%Added
TD Waterhouse Canada Inc.8,419$510.3K0.01%+178+2.2%Added
Demars Financial Group, LLC9,063$515.0K0.29%−199−2.1%Reduced
Bailard, Inc.9,100$517.1K0.02%−611−6.3%Reduced
Aspire Private Capital, LLC9,102$517.2K0.16%+98+1.1%Added
Global Retirement Partners, LLC9,108$517.5K0.03%+1,236+15.7%Added
Wedbush Securities Inc9,144$520.0K0.02%−58−0.6%Reduced
Northwestern Mutual Investment Management Company, LLC9,199$522.7K0.01%+60+0.7%Added
Brevan Howard Capital Management LP9,225$524.2K0.10%+9,225New
Verus Capital Partners, LLC9,249$525.5K0.07%+664+7.7%Added
Banco Bilbao Vizcaya Argentaria, S.A.9,320$529.0K0.01%+452+5.1%Added
Redhawk Wealth Advisors, Inc.9,453$537.1K0.16%+1,981+26.5%Added
Colonial River Wealth Management, LLC9,506$540.1K0.36%−578−5.7%Reduced
Beacon Investment Advisors LLC9,516$540.7K0.37%−562−5.6%Reduced
Adelante Capital Management LLC9,625$547.0K0.05%−1,780−15.6%Reduced
Veritable, L.P.9,644$548.0K0.01%+1,243+14.8%Added
Merit Financial Group, LLC9,654$548.5K0.02%−116−1.2%Reduced
1620 Investment Advisors, Inc.16,093$553.6K0.63%+16,093New
Atlantic Union Bankshares Corp9,794$556.5K0.06%00.0%Unchanged
MAI Capital Management9,795$556.6K0.01%−5,916−37.7%Reduced
Badgley Phelps Wealth Managers, LLC9,825$558.3K0.02%+9,825New
Mathes Company, Inc.9,950$565.0K0.25%+9,950New
Teamwork Financial Advisors, LLC9,956$565.7K0.09%−1,353−12.0%Reduced
Steward Partners Investment Advisory, LLC9,971$566.5K0.01%+704+7.6%Added
Armor Investment Advisors, LLC9,996$568.0K0.34%+186+1.9%Added
Archer Investment Corp10,000$568.2K0.20%−2,000−16.7%Reduced
Montag A & Associates Inc9,894$568.3K0.04%00.0%Unchanged
B. Metzler seel. Sohn & Co. AG10,240$581.8K0.01%00.0%Unchanged
Founders Financial Alliance, LLC10,259$582.9K0.23%+232+2.3%Added
Fayez Sarofim & Co10,274$583.8K0.00%−512−4.7%Reduced
Parallax Volatility Advisers, L.P.10,336$587.3K0.02%+10,336New
APG Asset Management N.V.11,405$594.0K0.00%00.0%Unchanged
Kentucky Retirement Systems Insurance Trust Fund10,469$595.0K0.04%+125+1.2%Added
Outlook Wealth Advisors, LLC10,603$602.4K0.23%−592−5.3%Reduced
One Charles Private Wealth Services, LLC10,710$608.5K0.35%+708+7.1%Added
Proequities, Inc.10,612$609.5K0.05%−733−6.5%Reduced
Gsa Capital Partners LLP10,838$616.0K0.06%+10,838New
WealthBridge Capital Management, LLC10,872$617.8K0.25%−40−0.4%Reduced
Hunter Associates Investment Management LLC10,900$618.0K0.12%00.0%Unchanged
GM Advisory Group, Inc.11,089$630.1K0.05%+5,038+83.3%Added
Independent Financial Group, LLC11,153$633.7K0.04%+575+5.4%Added
Squarepoint Ops LLC11,175$635.0K0.00%−9,013−44.6%Reduced
Westwood Holdings Group Inc.11,200$636.0K0.01%−65,000−85.3%Reduced
Vestmark Advisory Solutions, Inc.11,230$638.1K0.02%+3,914+53.5%Added
Abbot Financial Management, Inc.11,250$639.2K0.41%−1,200−9.6%Reduced
Plimoth Trust Co LLC11,278$640.8K0.19%+1,200+11.9%Added
Walleye Trading LLC11,290$641.5K0.03%−13,839−55.1%Reduced
Harbour Investments, Inc.11,328$643.7K0.03%+156+1.4%Added
Cerity Partners LLC11,443$650.4K0.00%−191−1.6%Reduced
American Institute for Advanced Investment Management, LLP11,455$650.9K0.57%+800+7.5%Added
Assenagon Asset Management S.A.11,482$652.4K0.00%+22+0.2%Added
Pegasus Asset Management, Inc.11,495$653.1K0.29%+435+3.9%Added
Integrated Wealth Concepts LLC11,559$656.8K0.01%+2,762+31.4%Added
Retirement Planning Co of New England, Inc.11,587$658.4K0.38%−244−2.1%Reduced