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Livermore
ZHEN

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, 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
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
Pinnacle Private Wealth, LLC3,977$220.0K0.07%−200−4.8%Reduced
Norris Financial Group, LLC3,966$219.8K0.13%−397−9.1%Reduced
Ameritas Investment Partners, Inc.3,944$219.0K0.01%00.0%Unchanged
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
WealthBridge Capital Management, LLC3,874$215.0K0.08%+3,874New
Benjamin F. Edwards & Company, Inc.3,860$214.0K0.01%+18+0.5%Added
Coastline Trust Co3,821$211.0K0.03%+3,821New
HRT Financial LP3,806$210.0K0.00%+3,806New
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
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
Iron Financial, LLC3,681$204.0K0.09%−7,733−67.8%Reduced
Clear Street Markets LLC3,619$201.0K0.06%−3,311−47.8%Reduced
Surevest, LLC3,597$199.0K0.05%00.0%Unchanged
CWM, LLC3,259$181.0K0.00%+624+23.7%Added
Money Concepts Capital Corp3,214$178.0K0.01%+3,214New
Clean Yield Group3,000$166.0K0.06%00.0%Unchanged
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
M&R Capital Management Inc2,787$154.0K0.03%+2,073+290.3%Added
Livforsakringsbolaget Skandia, Omsesidigt2,761$153.0K0.01%00.0%Unchanged
Simplex Trading, LLC2,633$145.0K0.00%−7,718−74.6%Reduced
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
Trustcore Financial Services, LLC2,500$139.0K0.01%00.0%Unchanged
Acadian Asset Management LLC2,503$137.0K0.00%+328+15.1%Added
Sentry Investment Management LLC2,363$131.0K0.04%−397−14.4%Reduced
Orion Capital Management LLC2,300$127.0K0.08%00.0%Unchanged
NVWM, LLC2,151$121.0K0.04%+2+0.1%Added
Parallel Advisors, LLC2,098$116.0K0.00%+206+10.9%Added
Prospera Financial Services Inc2,034$113.0K0.00%+2,034New
Vigilant Capital Management, LLC2,024$112.0K0.01%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
Financial Perspectives, Inc2,000$110.8K0.05%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
Sawyer & Company, Inc1,900$105.0K0.05%00.0%Unchanged
Newbridge Financial Services Group, Inc.1,812$100.0K0.05%−69−3.7%Reduced
Schubert & Co1,726$96.0K0.11%+23+1.4%Added
Carolinas Wealth Consulting LLC1,632$91.0K0.02%−11−0.7%Reduced
Retirement Group, LLC1,634$91.0K0.04%+8+0.5%Added
SRS Capital Advisors, Inc.1,567$87.0K0.01%+32+2.1%Added
Huntington National Bank1,548$86.0K0.00%+42+2.8%Added
Brewin Dolphin Ltd1,512$84.0K0.00%00.0%Unchanged
First Financial Corp1,500$83.0K0.05%00.0%Unchanged
Tower View Investment Management & Research LLC1,500$83.0K0.04%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
American Research & Management Co.1,389$77.0K0.02%00.0%Unchanged
Ellevest, Inc.1,300$72.0K0.01%+662+103.8%Added
Silvant Capital Management LLC1,292$72.0K0.01%+740+134.1%Added
Bedel Financial Consulting, Inc.1,275$71.0K0.02%+6+0.5%Added
Hexagon Capital Partners LLC1,241$69.0K0.02%+100+8.8%Added
Founders Capital Management1,300$68.0K0.04%00.0%Unchanged
Carl Stuart Investment Advisor, Inc1,215$67.3K0.05%+1,215New
Parkside Financial Bank & Trust1,210$67.0K0.02%+87+7.7%Added
Princeton Global Asset Management LLC1,191$66.0K0.02%+1,191New
Proffitt & Goodson Inc1,131$63.0K0.01%00.0%Unchanged
Umb Bank N A1,116$62.0K0.00%00.0%Unchanged
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
Sittner & Nelson, LLC1,000$55.0K0.03%00.0%Unchanged
Baldwin Brothers Inc1,000$55.0K0.01%+1,000New
North Star Investment Management Corp.970$54.0K0.00%00.0%Unchanged
Avion Wealth969$54.0K0.02%00.0%Unchanged
Tradition Wealth Management, LLC970$54.0K0.01%+12+1.3%Added
Whittier Trust Co953$53.0K0.00%−2,100−68.8%Reduced
TCI Wealth Advisors, Inc.945$52.0K0.01%+53+5.9%Added
Desjardins Global Asset Management Inc.923$51.0K0.00%−56−5.7%Reduced
Private Ocean, LLC900$50.0K0.01%00.0%Unchanged
Corsicana & Co.900$50.0K0.03%+900New
Clearstead Advisors, LLC833$46.0K0.00%00.0%Unchanged
Howe & Rusling Inc804$45.0K0.01%00.0%Unchanged
Beacon Capital Management, LLC821$45.0K0.01%+821New
Sound Income Strategies, LLC786$44.0K0.01%−97−11.0%Reduced
Central Trust Co800$44.0K0.00%+400+100.0%Added
AdvisorNet Financial, Inc803$44.0K0.00%+425+112.4%Added
Harel Insurance Investments & Financial Services Ltd.800$44.0K0.00%+800New
AllSquare Wealth Management LLC798$44.0K0.03%+798New
Nelson, Van Denburg & Campbell Wealth Management Group, LLC767$42.0K0.00%+625+440.1%Added
Valley National Advisers Inc684$38.0K0.01%00.0%Unchanged
TCWP LLC650$36.0K0.01%+650New
Hanson & Doremus Investment Management625$35.0K0.01%−1,640−72.4%Reduced
Massmutual Trust Co FSB601$33.0K0.00%−4−0.7%Reduced
Fortitude Advisory Group L.L.C.572$32.0K0.02%+113+24.6%Added
Lloyd Advisory Services, LLC.–$32.0K0.01%–New
Webster Bank, N. A.557$31.0K0.00%00.0%Unchanged
Lee Financial Co535$30.0K0.01%+35+7.0%Added