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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, Q1 2022

Institutional positions in Iron Mountain Inc as of Mar 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
777
+34 vs. Q4 2021
Shares held
224.6M
−3.39M (−1.5%) vs. Q4 2021
Total value
$12.4B
+$518.2M (+4.3%) vs. Q4 2021
New holders
90
295 more added
Sold out
56
272 more reduced

11 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2022: 777 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 heldQ1 2022: $12.4B
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, Q1 2022

Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q4 2021.

Institutions holding IRM in Q1 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Tradition Wealth Management, LLC970$54.0K0.01%+12+1.3%Added
Sittner & Nelson, LLC1,000$55.0K0.03%00.0%Unchanged
Baldwin Brothers Inc1,000$55.0K0.01%+1,000New
Spire Wealth Management1,084$60.0K0.00%−300−21.7%Reduced
GPS Wealth Strategies Group, LLC1,081$60.0K0.01%+7+0.7%Added
Bay Harbor Wealth Management, LLC1,088$60.0K0.02%+1,088New
Umb Bank N A1,116$62.0K0.00%00.0%Unchanged
Proffitt & Goodson Inc1,131$63.0K0.01%00.0%Unchanged
Princeton Global Asset Management LLC1,191$66.0K0.02%+1,191New
Parkside Financial Bank & Trust1,210$67.0K0.02%+87+7.7%Added
Carl Stuart Investment Advisor, Inc1,215$67.3K0.05%+1,215New
Founders Capital Management1,300$68.0K0.04%00.0%Unchanged
Hexagon Capital Partners LLC1,241$69.0K0.02%+100+8.8%Added
Bedel Financial Consulting, Inc.1,275$71.0K0.02%+6+0.5%Added
Ellevest, Inc.1,300$72.0K0.01%+662+103.8%Added
Silvant Capital Management LLC1,292$72.0K0.01%+740+134.1%Added
American Research & Management Co.1,389$77.0K0.02%00.0%Unchanged
Tobam1,439$80.0K0.00%−1,057−42.3%Reduced
First Horizon Advisors, Inc.1,439$80.0K0.00%+11+0.8%Added
First Financial Corp1,500$83.0K0.05%00.0%Unchanged
Tower View Investment Management & Research LLC1,500$83.0K0.04%00.0%Unchanged
Brewin Dolphin Ltd1,512$84.0K0.00%00.0%Unchanged
Huntington National Bank1,548$86.0K0.00%+42+2.8%Added
SRS Capital Advisors, Inc.1,567$87.0K0.01%+32+2.1%Added
Carolinas Wealth Consulting LLC1,632$91.0K0.02%−11−0.7%Reduced
Retirement Group, LLC1,634$91.0K0.04%+8+0.5%Added
Schubert & Co1,726$96.0K0.11%+23+1.4%Added
Newbridge Financial Services Group, Inc.1,812$100.0K0.05%−69−3.7%Reduced
Sawyer & Company, Inc1,900$105.0K0.05%00.0%Unchanged
Castleview Partners, LLC2,000$110.0K0.07%−121,080−98.4%Reduced
First Manhattan Co1,995$110.0K0.00%00.0%Unchanged
Financial Perspectives, Inc2,000$110.8K0.05%00.0%Unchanged
Kings Point Capital Management2,000$111.0K0.01%00.0%Unchanged
Cullen/Frost Bankers, Inc.2,000$111.0K0.00%+1,200+150.0%Added
Private Capital Group, LLC2,002$111.0K0.03%+1,745+679.0%Added
Vigilant Capital Management, LLC2,024$112.0K0.01%00.0%Unchanged
Prospera Financial Services Inc2,034$113.0K0.00%+2,034New
Parallel Advisors, LLC2,098$116.0K0.00%+206+10.9%Added
NVWM, LLC2,151$121.0K0.04%+2+0.1%Added
Orion Capital Management LLC2,300$127.0K0.08%00.0%Unchanged
Sentry Investment Management LLC2,363$131.0K0.04%−397−14.4%Reduced
Acadian Asset Management LLC2,503$137.0K0.00%+328+15.1%Added
Trustcore Financial Services, LLC2,500$139.0K0.01%00.0%Unchanged
Charter Oak Capital Management, LLC2,590$144.0K0.02%00.0%Unchanged
Financial Management Professionals, Inc.2,596$144.0K0.03%+660+34.1%Added
Simplex Trading, LLC2,633$145.0K0.00%−7,718−74.6%Reduced
Livforsakringsbolaget Skandia, Omsesidigt2,761$153.0K0.01%00.0%Unchanged
M&R Capital Management Inc2,787$154.0K0.03%+2,073+290.3%Added
Bogart Wealth, LLC2,928$162.0K0.01%+1,004+52.2%Added
Raleigh Capital Management Inc.2,917$162.0K0.09%+2,517+629.3%Added
Clean Yield Group3,000$166.0K0.06%00.0%Unchanged
Money Concepts Capital Corp3,214$178.0K0.01%+3,214New
CWM, LLC3,259$181.0K0.00%+624+23.7%Added
Surevest, LLC3,597$199.0K0.05%00.0%Unchanged
Clear Street Markets LLC3,619$201.0K0.06%−3,311−47.8%Reduced
Iron Financial, LLC3,681$204.0K0.09%−7,733−67.8%Reduced
Seelaus Asset Management LLC3,700$205.0K0.12%−250−6.3%Reduced
Gofen & Glossberg LLC3,691$205.0K0.00%+3,691New
Apriem Advisors3,700$205.0K0.03%+3,700New
Apollon Wealth Management, LLC3,714$206.0K0.01%+3,714New
Xcel Wealth Management, LLC3,725$206.0K0.06%+3,725New
Veriti Management LLC3,725$206.0K0.03%+3,725New
Aire Advisors, LLC3,719$206.0K0.07%+3,719New
HRT Financial LP3,806$210.0K0.00%+3,806New
Coastline Trust Co3,821$211.0K0.03%+3,821New
Benjamin F. Edwards & Company, Inc.3,860$214.0K0.01%+18+0.5%Added
WealthBridge Capital Management, LLC3,874$215.0K0.08%+3,874New
Park National Corp3,905$216.0K0.01%00.0%Unchanged
Aevitas Wealth Management, Inc.3,894$216.0K0.13%+15+0.4%Added
Addison Advisors LLC3,905$216.0K0.12%+1,216+45.2%Added
Ameritas Investment Partners, Inc.3,944$219.0K0.01%00.0%Unchanged
Norris Financial Group, LLC3,966$219.8K0.13%−397−9.1%Reduced
Pinnacle Private Wealth, LLC3,977$220.0K0.07%−200−4.8%Reduced
Signaturefd, LLC4,002$222.0K0.01%−99−2.4%Reduced
Marco Investment Management LLC4,000$222.0K0.02%00.0%Unchanged
Hunter Associates Investment Management LLC4,000$222.0K0.07%00.0%Unchanged
Murphy, Middleton, Hinkle & Parker, Inc.4,000$222.0K0.12%00.0%Unchanged
IHT Wealth Management, LLC4,023$223.0K0.02%+43+1.1%Added
Ascent Group, LLC4,051$224.0K0.03%+4,051New
Harvest Fund Management Co., Ltd4,086$226.0K0.05%−1,834−31.0%Reduced
AIA Group Ltd4,073$226.0K0.01%+957+30.7%Added
Patriot Financial Group Insurance Agency, LLC4,098$227.0K0.04%−1,879−31.4%Reduced
Laurion Capital Management LP4,100$227.0K0.01%+4,100New
HB Wealth Management, LLC4,135$229.0K0.00%+284+7.4%Added
Van Hulzen Asset Management, LLC4,150$230.0K0.02%+4,150New
Washington Trust Bank4,164$231.0K0.03%−2,355−36.1%Reduced
Checchi Capital Advisers, LLC4,213$233.0K0.02%+382+10.0%Added
Deseret Mutual Benefit Administrators4,220$234.0K0.05%+942+28.7%Added
Community Bank of Raymore4,250$235.0K0.07%−210−4.7%Reduced
Freestone Capital Holdings, LLC4,250$235.0K0.01%−85−2.0%Reduced
Guild Investment Management, Inc.4,236$235.0K0.24%00.0%Unchanged
Brinker Capital Investments, LLC4,251$236.0K0.00%+218+5.4%Added
Good Life Advisors, LLC4,282$237.0K0.03%−1,063−19.9%Reduced
Boothbay Fund Management, LLC4,290$238.0K0.01%+4,290New
Comerica Securities,inc.4,285$239.0K0.02%+4,285New
Integrated Wealth Concepts LLC4,386$243.0K0.01%+339+8.4%Added
ExodusPoint Capital Management, LP4,427$245.0K0.00%+4,427New
Selective Wealth Management, Inc.4,425$245.0K0.09%+4,425New
Alpha Paradigm Partners, LLC4,437$246.0K0.10%+4,437New
Linscomb & Williams, Inc.4,454$247.0K0.01%−1,564−26.0%Reduced