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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 8 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 2021

Institutional positions in Iron Mountain Inc as of Jun 30, 2021. 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
687
+60 vs. Q1 2021
Shares held
229.0M
+3.86M (+1.7%) vs. Q1 2021
Total value
$9.70B
+$1.37B (+16.4%) vs. Q1 2021
New holders
112
253 more added
Sold out
52
218 more reduced

3 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2021: 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 2021: 687 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 2021: $9.70B
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 2021

Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q1 2021.

Institutions holding IRM in Q2 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Lenox Wealth Advisors, LLC2$00.00%00.0%Unchanged
Versant Capital Management, Inc8$00.00%00.0%Unchanged
Kelly Financial Services LLC1,524$360.00%+1,488+4,133.3%Added
Optimum Investment Advisors20$1.00K0.00%00.0%Unchanged
JJJ Advisors Inc.19$1.00K0.00%00.0%Unchanged
Standard Family Office LLC29$1.00K0.00%00.0%Unchanged
Liberty Wealth Management LLC28$1.00K0.00%00.0%Unchanged
Sentry Investment Management LLC21$1.00K0.00%+21New
C M Bidwell & Associates Ltd27$1.00K0.00%+27New
MV Capital Management, Inc.16$1.00K0.00%+16New
Sutton Wealth Advisors Inc.38$1.61K0.00%00.0%Unchanged
Raffa Wealth Management, LLC39$1.65K0.00%−502−92.8%Reduced
Sandy Spring Bank42$2.00K0.00%00.0%Unchanged
SRS Capital Advisors, Inc.58$2.00K0.00%+58New
Stonebridge Capital Advisors LLC36$2.00K0.00%+36New
Zions Bancorporation, N.A.77$3.00K0.00%−4−4.9%Reduced
First Horizon Corp78$3.00K0.00%00.0%Unchanged
Glassman Wealth Services68$3.00K0.00%+57+518.2%Added
McIlrath & Eck, LLC100$4.00K0.00%−50−33.3%Reduced
FormulaFolio Investments, LLC89$4.00K0.00%00.0%Unchanged
Hudock, Inc.94$4.00K0.00%+1+1.1%Added
Tradewinds Capital Management, LLC100$4.00K0.00%+100New
Lake Point Wealth Management100$4.00K0.00%+100New
Hoese & Co LLP100$4.00K0.00%+100New
Assetmark, Inc127$5.00K0.00%00.0%Unchanged
Benjamin Edwards Inc123$5.00K0.00%+2+1.7%Added
Heritage Wealth Management, LLC115$5.00K0.00%00.0%Unchanged
Nelson, Van Denburg & Campbell Wealth Management Group, LLC139$5.00K0.00%+70+101.4%Added
Capital Advisory Group Advisory Services, LLC152$6.00K0.00%+1+0.7%Added
Earnest Partners LLC133$6.00K0.00%00.0%Unchanged
Carmichael Hill & Associates, Inc.143$6.00K0.00%00.0%Unchanged
CVA Family Office, LLC145$6.00K0.00%00.0%Unchanged
Lee Financial Co150$6.00K0.00%+150New
Prestige Wealth Management Group LLC172$7.00K0.00%−340−66.4%Reduced
Farmers & Merchants Investments Inc155$7.00K0.00%00.0%Unchanged
TCI Wealth Advisors, Inc.158$7.00K0.00%00.0%Unchanged
Covington Capital Management200$8.00K0.00%00.0%Unchanged
Dividend Assets Capital, LLC200$8.00K0.00%00.0%Unchanged
BerganKDV Wealth Management, LLC199$8.00K0.00%+4+2.1%Added
JFS Wealth Advisors, LLC220$9.00K0.00%00.0%Unchanged
Lindbrook Capital, LLC212$9.00K0.00%00.0%Unchanged
Leelyn Smith, LLC224$9.00K0.00%00.0%Unchanged
Kistler-Tiffany Companies, LLC263$11.0K0.00%+263New
Harbor Investment Advisory, LLC272$12.0K0.00%00.0%Unchanged
Institutional & Family Asset Management, LLC273$12.0K0.00%00.0%Unchanged
Private Capital Group, LLC311$13.0K0.00%+17+5.8%Added
IAG Wealth Partners, LLC295$13.0K0.00%00.0%Unchanged
RPg Family Wealth Advisory, LLC310$13.3K0.01%+310New
Whittier Trust Co of Nevada Inc329$14.0K0.00%00.0%Unchanged
Pflug Koory, LLC329$14.0K0.01%00.0%Unchanged
Berman Capital Advisors, LLC336$14.0K0.00%+132+64.7%Added
Eagle Bay Advisors LLC301$14.0K0.01%+301New
D'Orazio & Associates, Inc.356$15.0K0.00%−301−45.8%Reduced
Piscataqua Savings Bank353$15.0K0.01%00.0%Unchanged
Ellevest, Inc.355$15.0K0.00%+100+39.2%Added
Neo Ivy Capital Management345$15.0K0.02%+345New
Atlas Private Wealth Advisors350$15.0K0.01%+350New
Quadrant Capital Group LLC388$16.0K0.00%−279−41.8%Reduced
Central Trust Co400$16.0K0.00%00.0%Unchanged
Red Door Wealth Management, LLC399$16.0K0.01%+399New
AlphaMark Advisors, LLC400$17.0K0.01%00.0%Unchanged
Baystate Wealth Management LLC414$18.0K0.00%+7+1.7%Added
Savior LLC420$18.0K0.02%+420New
CX Institutional442$19.0K0.00%+90+25.6%Added
Penserra Capital Management LLC505$21.0K0.00%−216−30.0%Reduced
Spire Wealth Management500$21.0K0.00%−200−28.6%Reduced
Smithfield Trust Co500$21.0K0.00%00.0%Unchanged
Wagner Wealth Management, LLC500$21.0K0.02%00.0%Unchanged
Financial Avengers, Inc.507$21.0K0.01%+8+1.6%Added
Focused Wealth Management, Inc510$22.0K0.00%+7+1.4%Added
Sound Income Strategies, LLC540$23.0K0.00%−300−35.7%Reduced
Webster Bank, N. A.557$24.0K0.00%00.0%Unchanged
Silvant Capital Management LLC552$24.0K0.00%00.0%Unchanged
Massmutual Trust Co FSB584$25.0K0.00%+64+12.3%Added
Clearstead Advisors, LLC607$26.0K0.00%+511+532.3%Added
Huntington National Bank653$28.0K0.00%00.0%Unchanged
Valley National Advisers Inc684$29.0K0.01%00.0%Unchanged
Leonteq Securities AG714$30.2K0.00%+714New
West Paces Advisors Inc.734$31.1K0.01%+113+18.2%Added
Exchange Traded Concepts, LLC745$32.0K0.00%+550+282.1%Added
Howe & Rusling Inc804$34.0K0.00%00.0%Unchanged
Tradition Wealth Management, LLC834$35.0K0.01%+13+1.6%Added
Newbridge Financial Services Group, Inc.859$36.0K0.02%+275+47.1%Added
Bogart Wealth, LLC857$36.0K0.00%+857New
Private Ocean, LLC900$38.0K0.00%+900New
Exane Derivatives863$38.1K0.01%−2,800−76.4%Reduced
Whittier Trust Co953$40.0K0.00%00.0%Unchanged
Founders Capital Management950$40.0K0.03%+350+58.3%Added
North Star Investment Management Corp.970$41.0K0.00%00.0%Unchanged
Sittner & Nelson, LLC1,000$42.0K0.03%00.0%Unchanged
Tobam1,072$45.0K0.00%00.0%Unchanged
GPS Wealth Strategies Group, LLC1,058$45.0K0.01%+10+1.0%Added
Avion Wealth1,069$45.0K0.01%+1,069New
Jacobi Capital Management LLC1,165$49.0K0.01%+2+0.2%Added
Fred Alger Management, LLC1,225$52.0K0.00%+1,225New
Bedel Financial Consulting, Inc.1,258$53.0K0.02%+707+128.3%Added
West Branch Capital LLC1,400$59.0K0.03%+1,400New
WealthShield Partners, LLC1,409$60.0K0.01%−248−15.0%Reduced
Enterprise Financial Services Corp1,408$60.0K0.01%00.0%Unchanged
Lazard Asset Management LLC1,426$60.0K0.00%+200+16.3%Added