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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 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
Capital Fund Management S.A.0$00.00%−12,640−100.0%Sold out
Sun Life Financial INC0$00.00%−12,479−100.0%Sold out
Jump Financial, LLC0$00.00%−12,400−100.0%Sold out
HAP Trading, LLC0$00.00%−11,642−100.0%Sold out
Hunter Associates Investment Management LLC0$00.00%−10,999−100.0%Sold out
First Hawaiian Bank0$00.00%−10,713−100.0%Sold out
Lombard Odier Asset Management (Europe) Ltd0$00.00%−10,226−100.0%Sold out
Grace Capital0$00.00%−10,100−100.0%Sold out
Stockman Wealth Management, Inc.0$00.00%−10,000−100.0%Sold out
Claybrook Capital, LLC0$00.00%−10,000−100.0%Sold out
M Holdings Securities, Inc.0$00.00%−9,112−100.0%Sold out
Tuttle Tactical Management0$00.00%−8,881−100.0%Sold out
MEAG MUNICH ERGO, Kapitalanlagegesellschaft mbH0$00.00%−8,267−100.0%Sold out
IMS Capital Management0$00.00%−7,998−100.0%Sold out
Gyon Technologies Capital Management, LP0$00.00%−7,727−100.0%Sold out
Vicus Capital0$00.00%−7,452−100.0%Sold out
Bluefin Capital Management, LLC0$00.00%−6,820−100.0%Sold out
Marshall Wace, LLP0$00.00%−5,716−100.0%Sold out
Laurel Wealth Advisors, Inc.0$00.00%−5,497−100.0%Sold out
Old Mission Capital LLC0$00.00%−5,405−100.0%Sold out
Parallax Volatility Advisers, L.P.0$00.00%−3,903−100.0%Sold out
Van Eck Associates Corp0$00.00%−3,717−100.0%Sold out
Belpointe Asset Management LLC0$00.00%−2,951−100.0%Sold out
Sowell Financial Services LLC0$00.00%−1,402−100.0%Sold out
Hantz Financial Services, Inc.0$00.00%−1,133−100.0%Sold out
ShoreHaven Wealth Partners, LLC0$00.00%−1,032−100.0%Sold out
Jones Financial Companies LLLP0$00.00%−1,000−100.0%Sold out
Meridian Wealth Partners, LLC0$00.00%−1,013−100.0%Sold out
Concord Wealth Partners0$00.00%−1,000−100.0%Sold out
Valeo Financial Advisors, LLC0$00.00%−720−100.0%Sold out
Highlander Capital Management, LLC0$00.00%−500−100.0%Sold out
Mascoma Wealth Management LLC0$00.00%−500−100.0%Sold out
Ameritas Investment Company, LLC0$00.00%−470−100.0%Sold out
MPS Loria Financial Planners, LLC0$00.00%−262−100.0%Sold out
Joseph P. Lucia & Associates, LLC0$00.00%−250−100.0%Sold out
FinTrust Capital Advisors, LLC0$00.00%−112−100.0%Sold out
Allred Capital Management, LLC0$00.00%−101−100.0%Sold out
FIL Ltd0$00.00%−7−100.0%Sold out
SOA Wealth Advisors, LLC.0$00.00%−5−100.0%Sold out
Amundi Asset Management US, Inc.––––Not filed
Diamant Asset Management, Inc.––––Not filed
CSat Investment Advisory, L.P.––––Not filed