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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, Q4 2022

Institutional positions in Iron Mountain Inc as of Dec 31, 2022. 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
782
+54 vs. Q3 2022
Shares held
228.9M
+3.02M (+1.3%) vs. Q3 2022
Total value
$11.4B
+$1.43B (+14.3%) vs. Q3 2022
New holders
93
300 more added
Sold out
39
251 more reduced

15 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2022: 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 holdersQ4 2022: 782 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 heldQ4 2022: $11.4B
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, Q4 2022

Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q3 2022.

Institutions holding IRM in Q4 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Asset Dedication, LLC5$00.00%+5New
Key Financial Inc1$440.00%00.0%Unchanged
Leonteq Securities AG1$500.00%00.0%Unchanged
Fortis Capital Advisors, LLC4$1990.00%+4New
Gradient Investments LLC10$4990.00%+10New
NewSquare Capital LLC10$4990.00%+10New
Sofos Investments, Inc.50$6770.01%−654−92.9%Reduced
Versant Capital Management, Inc16$7980.00%00.0%Unchanged
Baker Avenue Asset Management, LP17$8470.00%+17New
JJJ Advisors Inc.19$9910.00%00.0%Unchanged
Eagle Bay Advisors LLC20$9970.00%00.0%Unchanged
McElhenny Sheffield Capital Management, LLC20$9970.00%+20New
Ci Investments Inc.16$1.00K0.00%−2,525−99.4%Reduced
Capital Advisors, Ltd. LLC20$1.00K0.00%−70−77.8%Reduced
Concord Wealth Partners22$1.10K0.00%+22New
Trifecta Capital Advisors, LLC27$1.35K0.00%+27New
Kelly Financial Services LLC36$1.79K0.00%00.0%Unchanged
Raffa Wealth Management, LLC39$1.94K0.00%00.0%Unchanged
Hollencrest Capital Management44$2.19K0.00%+44New
My Personal CFO, LLC44$2.19K0.00%+44New
Sandy Spring Bank46$2.29K0.00%+1+2.2%Added
Dark Forest Capital Management LP50$2.49K0.00%+50New
Quarry LP64$3.19K0.00%+64New
Bartlett & Co. Wealth Management LLC70$3.53K0.00%00.0%Unchanged
MV Capital Management, Inc.76$3.79K0.00%+3+4.1%Added
Bartlett & Co. LLC70$4.00K0.00%00.0%Unchanged
Red Tortoise LLC94$4.69K0.00%+94New
Stonebridge Capital Advisors LLC98$4.87K0.00%+2+2.1%Added
McIlrath & Eck, LLC100$4.99K0.00%00.0%Unchanged
Cohen & Steers, Inc.106$5.00K0.00%−693,554−100.0%Reduced
Hoese & Co LLP100$5.00K0.01%00.0%Unchanged
Moisand Fitzgerald Tamayo, LLC113$5.63K0.00%+2+1.8%Added
Tradition Wealth Management, LLC120$6.00K0.00%+20+20.0%Added
Park Place Capital Corp130$6.00K0.00%+130New
Colonial Trust Advisors131$6.53K0.00%+131New
Earnest Partners LLC133$6.63K0.00%00.0%Unchanged
HHM Wealth Advisors, LLC138$6.88K0.00%00.0%Unchanged
GW&K Investment Management, LLC140$7.00K0.00%00.0%Unchanged
Benjamin Edwards Inc133$7.00K0.00%+2+1.5%Added
Rise Advisors, LLC142$7.10K0.01%+1+0.7%Added
Carmichael Hill & Associates, Inc.143$7.13K0.00%00.0%Unchanged
Kozak & Associates, Inc.154$8.00K0.00%00.0%Unchanged
Coston, McIsaac & Partners171$8.00K0.00%+2+1.2%Added
Assetmark, Inc184$9.17K0.00%00.0%Unchanged
Farmers & Merchants Investments Inc195$9.72K0.00%00.0%Unchanged
CVA Family Office, LLC195$9.72K0.00%−15−7.1%Reduced
Bell Investment Advisors, Inc197$9.82K0.00%+64+48.1%Added
BerganKDV Wealth Management, LLC215$10.7K0.00%+3+1.4%Added
JFS Wealth Advisors, LLC220$11.0K0.00%00.0%Unchanged
Grove Bank & Trust220$11.0K0.00%+220New
Larson Financial Group LLC226$11.3K0.00%−27−10.7%Reduced
Glassman Wealth Services228$11.4K0.00%+84+58.3%Added
Heritage Wealth Management, LLC230$11.5K0.00%+11+5.0%Added
Kistler-Tiffany Companies, LLC238$11.9K0.00%00.0%Unchanged
Quent Capital, LLC240$12.0K0.00%00.0%Unchanged
Westside Investment Management, Inc.250$12.0K0.00%00.0%Unchanged
Prestige Wealth Management Group LLC254$12.8K0.00%+57+28.9%Added
Livforsakringsbolaget Skandia, Omsesidigt261$13.1K0.00%00.0%Unchanged
Zions Bancorporation, N.A.265$13.2K0.00%+10+3.9%Added
Institutional & Family Asset Management, LLC273$13.6K0.00%00.0%Unchanged
Harbor Investment Advisory, LLC275$13.7K0.00%−19−6.5%Reduced
WJ Interests, LLC279$13.9K0.01%+279New
Harel Insurance Investments & Financial Services Ltd.280$14.0K0.00%−170−37.8%Reduced
IAG Wealth Partners, LLC295$14.7K0.00%00.0%Unchanged
Cutler Group LP310$15.0K0.00%−4,792−93.9%Reduced
Godsey & Gibb Associates309$15.4K0.00%+309New
Whittier Trust Co of Nevada Inc329$16.4K0.00%−4−1.2%Reduced
Quadrant Capital Group LLC335$16.7K0.00%−69−17.1%Reduced
Caldwell Trust Co350$17.4K0.00%+350New
Piscataqua Savings Bank353$17.6K0.01%00.0%Unchanged
Covestor Ltd363$18.0K0.01%−27−6.9%Reduced
Savior LLC380$18.9K0.02%00.0%Unchanged
GeoWealth Management, LLC389$19.0K0.00%−61−13.6%Reduced
First Community Trust NA385$19.0K0.02%00.0%Unchanged
AlphaMark Advisors, LLC400$20.0K0.01%00.0%Unchanged
Bank of New Hampshire400$20.0K0.01%00.0%Unchanged
Allworth Financial LP416$20.7K0.00%−359−46.3%Reduced
PFS Partners, LLC419$20.9K0.02%00.0%Unchanged
Baystate Wealth Management LLC448$22.0K0.00%+6+1.4%Added
Byrne Asset Management LLC450$22.4K0.02%00.0%Unchanged
Hanson & Doremus Investment Management475$24.0K0.01%+475New
RWM Asset Management, LLC500$24.9K0.01%00.0%Unchanged
Hazlett, Burt & Watson, Inc.500$25.0K0.02%00.0%Unchanged
Trust Co of Vermont520$25.9K0.00%00.0%Unchanged
Compass Wealth Management LLC525$26.2K0.01%+525New
Farther Finance Advisors, LLC542$27.0K0.01%+542New
Financial Avengers, Inc.548$27.3K0.02%+7+1.3%Added
Lindbrook Capital, LLC549$27.4K0.00%−92−14.4%Reduced
Webster Bank, N. A.557$28.0K0.00%00.0%Unchanged
Focused Wealth Management, Inc621$31.0K0.01%+91+17.2%Added
GHP Investment Advisors, Inc.641$31.9K0.00%+153+31.4%Added
Tucker Asset Management LLC655$32.8K0.01%00.0%Unchanged
Valley National Advisers Inc650$33.0K0.01%00.0%Unchanged
True Wealth Design, LLC670$33.4K0.02%+670New
First Personal Financial Services728$36.3K0.01%−57−7.3%Reduced
Cambridge Trust Co735$37.0K0.00%−44−5.6%Reduced
Massmutual Trust Co FSB753$38.0K0.00%−84−10.0%Reduced
Nelson, Van Denburg & Campbell Wealth Management Group, LLC767$38.2K0.00%00.0%Unchanged
AdvisorNet Financial, Inc772$38.5K0.00%+9+1.2%Added
Abound Wealth Management793$39.6K0.02%+15+1.9%Added