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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, Q3 2024

Institutional positions in Iron Mountain Inc as of Sep 30, 2024. 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
1,056
+100 vs. Q2 2024
Shares held
242.6M
+22.7M (+10.3%) vs. Q2 2024
Total value
$28.8B
+$9.07B (+46.0%) vs. Q2 2024
New holders
165
323 more added
Sold out
65
416 more reduced

11 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2024: 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 holdersQ3 2024: 1,056 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 heldQ3 2024: $28.8B
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, Q3 2024

Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q2 2024.

Institutions holding IRM in Q3 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Westpac Banking Corp4,205$499.7K0.03%00.0%Unchanged
Jump Financial, LLC4,220$501.5K0.01%+1,265+42.8%Added
Keystone Financial Group4,221$501.5K0.06%+1,370+48.1%Added
L.M. Kohn & Company4,242$504.1K0.13%−245−5.5%Reduced
NCP Inc.4,259$506.0K0.29%+21+0.5%Added
Atomi Financial Group, Inc.4,276$508.2K0.03%+396+10.2%Added
Raleigh Capital Management Inc.4,303$511.3K0.20%+107+2.6%Added
Sculati Wealth Management, LLC4,320$513.3K0.20%−550−11.3%Reduced
Blake Schutter Theil Wealth Advisors, LLC4,322$513.6K0.37%+4,322New
Armstrong Advisory Group, Inc4,335$515.1K0.04%00.0%Unchanged
Perigon Wealth Management, LLC4,338$515.5K0.01%+160+3.8%Added
Stephens Inc4,360$518.1K0.01%+3+0.1%Added
Koshinski Asset Management, Inc.4,370$519.3K0.04%+34+0.8%Added
Edmp, Inc.4,387$521.3K0.43%00.0%Unchanged
Hartford Funds Management Co LLC4,398$522.6K0.05%+354+8.8%Added
Summit Financial, LLC4,391$524.9K0.02%+204+4.9%Added
Jackson Creek Investment Advisors LLC4,455$529.0K0.16%+4,455New
LifePro Asset Management4,458$529.7K0.32%+3+0.1%Added
Private Portfolio Partners LLC4,480$532.4K0.10%+4,480New
Scotia Capital Inc.4,492$533.9K0.00%−29−0.6%Reduced
Vontobel Holding Ltd.4,500$534.7K0.00%+4,500New
Teamwork Financial Advisors, LLC4,502$535.0K0.07%−202−4.3%Reduced
Welch Group, LLC4,531$538.4K0.02%00.0%Unchanged
Armor Investment Advisors, LLC4,538$539.3K0.22%−195−4.1%Reduced
Goldstone Financial Group, LLC4,548$540.5K0.09%−88−1.9%Reduced
True Vision MN LLC4,546$543.5K0.33%+485+11.9%Added
Sigma Planning Corp4,601$546.8K0.02%−736−13.8%Reduced
Atalanta Sosnoff Capital, LLC4,645$552.0K0.01%00.0%Unchanged
Pensionmark Financial Group, LLC4,664$554.2K0.02%+4,664New
Qtron Investments LLC4,685$556.7K0.08%−4,300−47.9%Reduced
Intrua Financial, LLC4,691$557.5K0.09%+388+9.0%Added
High Net Worth Advisory Group LLC4,692$557.6K0.16%00.0%Unchanged
Yeomans Consulting Group, Inc.4,731$562.2K0.21%+4,731New
CX Institutional4,773$567.2K0.03%+29+0.6%Added
Summit Trail Advisors, LLC4,777$571.0K0.01%+4,777New
SFG Wealth Management, LLC.4,822$573.0K0.30%+20.0%Added
Financial Management Professionals, Inc.4,845$576.0K0.07%+71+1.5%Added
Jefferies Financial Group Inc.4,909$583.3K0.01%−364−6.9%Reduced
Texas Yale Capital Corp.4,925$585.2K0.03%00.0%Unchanged
Quantbot Technologies LP4,987$592.6K0.02%−59,966−92.3%Reduced
West Wealth Group, LLC5,000$594.1K0.19%00.0%Unchanged
Perfromance Wealth Partners, LLC5,007$595.0K0.02%00.0%Unchanged
Personal Cfo Solutions, LLC5,013$595.7K0.08%−103−2.0%Reduced
NorthStar Asset Management LLC5,024$597.0K0.40%00.0%Unchanged
CAPROCK Group, Inc.5,049$604.6K0.02%+1,051+26.3%Added
NBC Securities, Inc.5,113$607.0K0.05%−280−5.2%Reduced
ClearAlpha Technologies LP5,128$609.4K0.26%+5,128New
Coastline Trust Co5,147$611.6K0.07%−97−1.8%Reduced
Valued Retirements, Inc.5,198$617.7K0.85%00.0%Unchanged
Meiji Yasuda Asset Management Co Ltd.5,203$618.3K0.02%+962+22.7%Added
Secure Asset Management, LLC5,231$621.6K0.11%+196+3.9%Added
American Assets Capital Advisers, LLC5,318$631.9K0.19%−67,216−92.7%Reduced
Augustine Asset Management Inc5,324$632.7K0.22%+10+0.2%Added
Ballentine Partners, LLC5,393$640.9K0.01%+779+16.9%Added
Golden State Equity Partners5,415$643.5K0.10%00.0%Unchanged
Pinnacle Family Advisors, LLC5,477$650.9K0.34%+263+5.0%Added
Gateway Advisory, LLC5,479$651.1K0.10%+5,479New
ORG Partners LLC5,603$666.0K0.11%+3,994+248.2%Added
Catalyst Funds Management Pty Ltd5,648$671.2K0.15%+5,648New
Kapstone Financial Advisors LLC5,788$675.6K0.41%00.0%Unchanged
Davis R M Inc5,686$675.7K0.01%00.0%Unchanged
Garden State Investment Advisory Services LLC5,662$676.7K0.22%00.0%Unchanged
Arete Wealth Advisors, LLC5,740$679.0K0.06%−2,155−27.3%Reduced
Caldwell Investment Management Ltd.5,900$688.4K0.48%+5,900New
Kingsview Wealth Management, LLC5,833$693.1K0.01%−634−9.8%Reduced
Essex Savings Bank5,859$696.2K0.17%−55−0.9%Reduced
GTS Securities LLC5,886$699.4K0.01%+5,886New
Retireful, LLC5,891$700.0K0.52%+5,891New
Wambolt & Associates, LLC5,966$705.4K0.19%−3,449−36.6%Reduced
Resources Investment Advisors, LLC.5,986$711.4K0.01%+89+1.5%Added
Signaturefd, LLC6,026$716.1K0.01%+677+12.7%Added
Estabrook Capital Management6,037$717.4K0.11%−200−3.2%Reduced
EWG Elevate Inc.6,062$720.4K0.29%−803−11.7%Reduced
Zimmermann Investment Management & Planning LLC6,075$721.9K0.22%+75+1.3%Added
Keybank National Association6,111$726.2K0.00%+526+9.4%Added
DCM Advisors, LLC6,144$730.1K0.37%−552−8.2%Reduced
Gerber Kawasaki Wealth & Investment Management6,166$732.7K0.03%−228−3.6%Reduced
Concurrent Investment Advisors, LLC6,175$733.8K0.02%−1,996−24.4%Reduced
Nations Financial Group Inc,6,200$736.8K0.05%+2,801+82.4%Added
NorthRock Partners, LLC6,227$742.4K0.02%−1,170−15.8%Reduced
Fidelis Capital Partners, LLC5,935$745.1K0.09%+3,821+180.7%Added
Perpetual Ltd6,290$747.4K0.01%−6,690−51.5%Reduced
Raymond James Trust N.A.6,293$747.8K0.02%−276−4.2%Reduced
SeaCrest Wealth Management, LLC6,386$758.8K0.08%−714−10.1%Reduced
Sheets Smith Wealth Management6,410$761.7K0.09%−50−0.8%Reduced
Accuvest Global Advisors6,473$769.2K0.66%+6,473New
Catalytic Wealth RIA, LLC6,530$776.0K0.14%−11,254−63.3%Reduced
Centaurus Financial, Inc.6,557$779.0K0.05%−154−2.3%Reduced
Beverly Hills Private Wealth, LLC6,649$790.1K0.16%−920−12.2%Reduced
Quadcap Wealth Management, LLC6,689$794.9K0.12%+74+1.1%Added
V-Square Quantitative Management LLC6,805$808.6K0.12%+37+0.5%Added
Glenmede Trust Co NA6,813$809.6K0.00%+7+0.1%Added
Bramshill Investments, LLC6,813$809.6K0.09%−4,215−38.2%Reduced
Washington Trust Co6,886$818.3K0.03%−125−1.8%Reduced
Friedenthal Financial6,931$823.6K0.48%+6,931New
Ellevest, Inc.7,002$832.0K0.05%+525+8.1%Added
Verdence Capital Advisors LLC7,030$835.3K0.07%+2,726+63.3%Added
Bryn Mawr Trust Co7,047$837.4K0.02%+7,047New
Balyasny Asset Management LLC7,054$838.2K0.00%−13,395−65.5%Reduced
Coldstream Capital Management Inc7,105$842.9K0.02%+497+7.5%Added