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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 2022

Institutional positions in Iron Mountain Inc as of Jun 30, 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
767
+7 vs. Q1 2022
Shares held
224.1M
+1.54M (+0.7%) vs. Q1 2022
Total value
$10.9B
−$1.42B (−11.5%) vs. Q1 2022
New holders
82
299 more added
Sold out
75
260 more reduced

17 institutions that held it in Q1 2022 haven't filed for Q2 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2022: 767 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 2022: $10.9B
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 2022

Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q1 2022.

Institutions holding IRM in Q2 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Thrivent Financial for Lutherans56,050$2.73M0.01%+7,854+16.3%Added
Oregon Public Employees Retirement Fund55,397$2.70M0.04%−31,346−36.1%Reduced
Yousif Capital Management, LLC55,272$2.69M0.04%−2,925−5.0%Reduced
HRT Financial LP55,271$2.69M0.03%+51,465+1,352.2%Added
Pensionfund DSM Netherlands55,000$2.68M1.69%−24,500−30.8%Reduced
Vert Asset Management LLC54,964$2.68M2.48%+2,552+4.9%Added
Atria Wealth Solutions, Inc.54,035$2.66M0.05%−6,981−11.4%Reduced
Sumitomo Mitsui DS Asset Management Company, Ltd54,247$2.64M0.06%+3,995+7.9%Added
State of Tennessee, Treasury Department54,235$2.64M0.01%+7,671+16.5%Added
Russell Investments Group, Ltd.54,187$2.63M0.01%−2,603−4.6%Reduced
The PNC Financial Services Group, Inc.53,887$2.62M0.00%+1,924+3.7%Added
Hourglass Capital, LLC53,250$2.59M0.92%+1,450+2.8%Added
Werlinich Asset Management, LLC52,840$2.57M2.41%00.0%Unchanged
Cinctive Capital Management LP51,743$2.52M0.12%+51,743New
Utah Retirement Systems51,014$2.48M0.04%00.0%Unchanged
NEIRG Wealth Management, LLC50,826$2.48M0.54%+25,592+101.4%Added
Shell Asset Management Co50,524$2.46M0.07%+1,545+3.2%Added
Mercer Global Advisors Inc50,090$2.44M0.01%+8,044+19.1%Added
CIBC World Markets Inc.49,698$2.42M0.01%+26,483+114.1%Added
Bramshill Investments, LLC49,333$2.40M0.29%+4,140+9.2%Added
Skandinaviska Enskilda Banken AB (publ)49,282$2.40M0.02%+907+1.9%Added
Madden Securities Corp48,827$2.38M1.30%−8,372−14.6%Reduced
DnB Asset Management AS48,432$2.36M0.02%+939+2.0%Added
Teacher Retirement System of Texas48,227$2.35M0.02%−11,422−19.1%Reduced
Pacitti Group Inc.47,817$2.33M1.79%+1,776+3.9%Added
Xponance, Inc.47,376$2.31M0.05%+7,786+19.7%Added
AE Wealth Management LLC47,226$2.30M0.02%+2,961+6.7%Added
Disciplined Equity Management, Inc.47,165$2.30M2.08%+330+0.7%Added
IFM Investors Pty Ltd47,108$2.29M0.04%00.0%Unchanged
D.A. Davidson & Co.46,939$2.29M0.03%+2,466+5.5%Added
Beck Capital Management, LLC46,570$2.27M1.02%−15,788−25.3%Reduced
New York Life Investment Management LLC46,402$2.26M0.03%+46,402New
Baird Financial Group, Inc.45,972$2.24M0.01%+184+0.4%Added
Cetera Investment Advisers45,851$2.23M0.04%−4,983−9.8%Reduced
DuPont Capital Management Corp45,110$2.20M0.10%−7,877−14.9%Reduced
Susquehanna International Group, LLP44,837$2.18M0.00%−43,907−49.5%Reduced
Eaton Vance Management44,745$2.18M0.00%−7,579−14.5%Reduced
Gulf International Bank (UK) Ltd45,064$2.17M0.04%00.0%Unchanged
Independent Advisor Alliance43,987$2.14M0.12%+390+0.9%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys42,306$2.06M0.02%+3,563+9.2%Added
Hartford Investment Management Co42,234$2.06M0.06%+443+1.1%Added
Mackenzie Financial Corp41,563$2.02M0.00%+33,592+421.4%Added
RB Capital Management, LLC40,511$1.97M0.74%+1,574+4.0%Added
U.S. Capital Wealth Advisors, LLC40,141$1.95M0.09%00.0%Unchanged
Northwestern Mutual Wealth Management Co40,064$1.95M0.00%+1,218+3.1%Added
Allspring Global Investments Holdings, LLC39,668$1.93M0.00%−169,016−81.0%Reduced
Mutual of America Capital Management LLC39,617$1.93M0.02%+973+2.5%Added
Donoghue Forlines LLC39,354$1.92M0.50%−17,207−30.4%Reduced
Wolverine Asset Management LLC39,193$1.91M0.02%+21,093+116.5%Added
Duality Advisers, LP38,636$1.88M0.19%+38,636New
Texas Permanent School Fund38,379$1.87M0.03%+822+2.2%Added
Cubist Systematic Strategies, LLC38,277$1.86M0.01%+28,178+279.0%Added
Janus Henderson Group PLC38,060$1.85M0.00%−1,063,169−96.5%Reduced
SeaBridge Investment Advisors LLC38,041$1.85M0.60%−647−1.7%Reduced
TKG Advisors, LLC37,444$1.82M1.57%+3,180+9.3%Added
Ziegler Capital Management, LLC37,415$1.82M0.07%+1,436+4.0%Added
Alps Advisors Inc37,220$1.81M0.02%−2,741−6.9%Reduced
Vestcor Inc37,018$1.80M0.07%+31,709+597.3%Added
Public Employees Retirement Association of Colorado36,897$1.80M0.01%00.0%Unchanged
Eqis Capital Management, Inc.36,666$1.79M0.19%+5,913+19.2%Added
Tectonic Advisors LLC36,360$1.77M0.32%+7,123+24.4%Added
EAM Global Investors LLC35,910$1.75M0.43%00.0%Unchanged
Madison Asset Management, LLC35,738$1.74M0.03%−440−1.2%Reduced
Agf Investments Inc.35,332$1.72M0.02%00.0%Unchanged
Dorsey Wright & Associates35,305$1.72M0.50%+35,305New
CIBC Asset Management Inc35,033$1.71M0.01%−22,888−39.5%Reduced
Tower Research Capital LLC (TRC)34,511$1.68M0.04%−42,264−55.0%Reduced
Childress Capital Advisors, LLC33,744$1.64M0.65%+183+0.5%Added
British Columbia Investment Management Corp33,479$1.63M0.02%−11,222−25.1%Reduced
Holderness Investments Co33,196$1.62M0.67%−1,505−4.3%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.32,650$1.59M0.01%+32,650New
Stock Yards Bank & Trust Co32,110$1.56M0.06%+24,378+315.3%Added
Globeflex Capital L P32,018$1.56M0.38%−7,308−18.6%Reduced
CoreFirst Bank & Trust32,000$1.56M1.23%−1,790−5.3%Reduced
Dumont & Blake Investment Advisors LLC31,878$1.55M0.51%−56−0.2%Reduced
Vancity Investment Management Ltd31,267$1.52M0.22%−166,582−84.2%Reduced
Los Angeles Capital Management LLC31,201$1.52M0.01%−209−0.7%Reduced
James Hambro & Partners30,999$1.51M0.13%+30,999New
Ancora Advisors, LLC30,910$1.50M0.04%−24−0.1%Reduced
Kavar Capital Partners Group, LLC30,748$1.50M0.35%−1,200−3.8%Reduced
Metropolitan Life Insurance Co30,006$1.46M0.06%−4,457−12.9%Reduced
RFG Advisory, LLC27,868$1.46M0.08%+753+2.8%Added
Sculati Wealth Management, LLC29,809$1.45M0.83%−6,912−18.8%Reduced
Triasima Portfolio Management inc.28,545$1.39M0.10%+28,545New
Monument Capital Management28,305$1.38M0.52%−775−2.7%Reduced
Boston Private Wealth LLC28,151$1.37M0.02%+269+1.0%Added
Cubic Asset Management, LLC28,005$1.36M0.37%00.0%Unchanged
Public Sector Pension Investment Board27,949$1.36M0.01%−12,551−31.0%Reduced
Horizon Kinetics Asset Management LLC27,558$1.34M0.03%−100−0.4%Reduced
Norinchukin Bank, The27,505$1.34M0.03%−6,550−19.2%Reduced
Sippican Capital Advisors27,442$1.34M1.33%−6,810−19.9%Reduced
Green Alpha Advisors, LLC27,264$1.33M0.30%−6,205−18.5%Reduced
Kinneret Advisory, LLC26,865$1.32M0.17%+569+2.2%Added
Jane Street Group, LLC26,921$1.31M0.00%−75,475−73.7%Reduced
KCM Investment Advisors LLC26,919$1.31M0.06%+2,569+10.6%Added
Bank of Nova Scotia26,920$1.31M0.00%−28,261−51.2%Reduced
Foresight Wealth Management, LLC26,874$1.31M0.46%+1,746+6.9%Added
TrimTabs Asset Management, LLC26,815$1.31M0.80%−1,098−3.9%Reduced
Richard P Slaughter Associates Inc26,761$1.30M0.57%+356+1.3%Added
Future Financial Wealth Managment LLC23,279$1.29M1.26%00.0%Unchanged