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Disclosery

IRM IRON MTN INC DEL

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REIT (common), issuer CIK 1020569

994 managers (1,018 13F filers) reported a position in IRM shares at 2025-09-30, 250,293,686 shares in all. 67 filers opened a position and 88 filers sold out during the quarter.

Managers
994
13F filers
1,018
New
67
Added
370
Reduced
391
Sold out
88
Shares held by filers
250,293,686

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Man Group plcin group Man Group plc12,151$1.24M<0.01%-42,97213F-HRTimelineGroup
Advisory Services Network, LLC12,149$1.24M0.02%+48513F-HRTimeline
Widmann Financial Services, Inc.12,110$1.23M0.78%-8413F-HRTimeline
CARY STREET PARTNERS ASSET MANAGEMENT L…group of 2 filers holding12,108$1.23M-404Timeline
SEGALL BRYANT & HAMILL, LLC12,009$1.22M0.02%013F-HRTimeline
Oak Thistle LLC11,980$1.22M0.19%+5,51313F-HRTimeline
Kintegral Advisory, LLCin group Kintegral Advisory, LLC11,843$1.22M0.1%-5313F-HRTimelineGroup
TOKIO MARINE ASSET MANAGEMENT CO LTDin group TOKIO MARINE HOLDINGS, INC.11,856$1.21M0.04%+1,22813F-HRTimelineGroup
NewSquare Capital LLC11,823$1.21M0.08%+11,58513F-HRTimeline
HUB Investment Partners, LLC11,765$1.2M0.04%+19513F-HRTimeline
Kessler Investment Group, LLC11,762$1.2M0.51%+3413F-HRTimeline
CWM, LLCin group CWM, LLC11,739$1.2M<0.01%+3,32413F-HRTimelineGroup
Assenagon Asset Management S.A.11,724$1.2M<0.01%+18613F-HRTimeline
NewEdge Wealth, LLC11,884$1.19M0.02%+46213F-HRTimeline
Redhawk Wealth Advisors, Inc.11,712$1.19M0.14%-1,37413F-HRTimeline
Summit Financial, LLC11,711$1.19M0.02%-17113F-HRTimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…11,692$1.19M<0.01%-7713F-HRTimeline
DELTA CAPITAL MANAGEMENT LLC11,610$1.18M0.61%013F-HRTimeline
Abbot Financial Management, Inc.11,552$1.18M0.5%+63413F-HRTimeline
Truvestments Capital LLC11,498$1.17M0.21%-2,66213F-HRTimeline
Chesley Taft & Associates LLC11,476$1.17M0.05%-1613F-HRTimeline
BURLING WEALTH PARTNERS, LLC11,392$1.16M0.19%-1,33813F-HRTimeline
Retirement Planning Co of New England, …11,366$1.16M0.47%-8913F-HRTimeline
CX Institutional11,246$1.15M0.03%+9,50113F-HRTimeline
World Investment Advisors11,194$1.14M0.02%+2,78313F-HRTimeline
LDR Capital Management LLC11,073$1.13M1.66%new13F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC11,069$1.13M0.01%-1,53613F-HRTimelineGroup
Glenview Trust Co11,000$1.12M0.02%-513F-HRTimeline
GC Wealth Management RIA, LLC10,938$1.12M0.04%+2,34013F-HRTimeline
ALLSTATE CORPin group ALLSTATE CORP10,935$1.11M0.03%new13F-HRTimelineGroup
Coppell Advisory Solutions LLC11,010$1.1M0.12%-2,05113F-HRTimeline
INGALLS & SNYDER LLC10,755$1.1M0.04%013F-HRTimeline
Bleakley Financial Group, LLC10,694$1.09M0.03%-38313F-HRTimeline
Wellington Shields & Co., LLCin group Wellington Shields Capital Ma…10,643$1.08M0.28%013F-HRTimelineGroup
Laird Norton Wetherby Wealth Management…10,565$1.08M0.04%+29413F-HRTimeline
AXXCESS WEALTH MANAGEMENT, LLC10,542$1.07M0.02%-54813F-HRTimeline
Guardian Asset Advisors, LLC10,518$1.07M0.58%-74813F-HRTimeline
Apollon Wealth Management, LLCin group Apollon Wealth Management, LLC10,510$1.07M0.02%-3,28513F-HRTimelineGroup
OMERS ADMINISTRATION Corp10,475$1.07M0.01%013F-HRTimeline
Prana Capital Management, LP10,360$1.06M0.04%-5,51613F-HRTimeline
LEVEL FOUR ADVISORY SERVICES, LLCin group LEVEL FOUR ADVISORY SERVICES,…10,330$1.05M0.04%-3513F-HRTimelineGroup
PLIMOTH TRUST CO LLC10,328$1.05M0.24%013F-HRTimeline
Glenmede Investment Management, LP10,216$1.04M0.01%+56313F-HRTimeline
Sequoia Financial Advisors, LLC10,114$1.03M0.01%-55413F-HRTimeline
Smith Group Asset Management, LLC10,000$1.02M0.06%013F-HRTimeline
BEACON INVESTMENT ADVISORS LLC9,799$999K0.41%+4913F-HRTimeline
Capital Investment Advisory Services, L…9,684$987K0.08%+59613F-HRTimeline
Vident Advisory, LLCin group Vident Advisory, LLC9,557$974K0.01%-26013F-HRTimelineGroup
Strait & Sound Wealth Management LLC9,516$970K0.37%-8113F-HRTimeline
GROUP ONE TRADING LLC9,483$967K0.03%+2,94013F-HRTimeline
Atlantic Union Bankshares Corpin group Atlantic Union Bankshares Corp9,462$965K0.02%+54113F-HRTimelineGroup
ATWOOD & PALMER INC9,454$964K0.06%+913F-HRTimeline
VERUS CAPITAL PARTNERS, LLC9,410$959K0.07%-29813F-HR/ATimeline
Savant Capital, LLCin group Savant Capital, LLC9,397$958K0.01%+45213F-HR/ATimelineGroup
DAVENPORT & Co LLC9,371$955K0.01%-48413F-HRTimeline
INDEPENDENT FINANCIAL GROUP, LLC9,316$950K0.02%013F-HRTimeline
Ullmann Wealth Partners Group, LLC9,299$948K0.1%+5913F-HRTimeline
DENALI ADVISORS LLC9,252$943K0.11%-5,16413F-HRTimeline
BANCO BILBAO VIZCAYA ARGENTARIA, S.A.9,245$942K0.01%+2,52713F-HRTimeline
HARBOUR INVESTMENTS, INC.9,200$938K0.02%+2213F-HRTimeline
Jain Global LLC9,190$937K0.01%-13,58613F-HRTimeline
Perpetual Ltdin group Perpetual Ltd9,130$931K0.01%-69013F-HRTimelineGroup
BESSEMER GROUP INCin group BESSEMER GROUP INC9,050$924K<0.01%+50713F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC9,017$919K0.01%+4,51413F-HR/ATimelineGroup
Beacon Pointe Advisors, LLC9,013$919K0.01%+1,20013F-HRTimeline
GREENLEAF TRUST8,977$915K0.01%+83513F-HRTimeline
Founders Financial Alliance, LLC8,956$913K0.17%+2613F-HRTimeline
Aspire Private Capital, LLC8,855$903K0.2%+50713F-HR/ATimeline
FIDUCIARY FAMILY OFFICE, LLC8,686$885K0.25%+74613F-HRTimeline
MAI Capital Management8,665$883K0.01%-19013F-HRTimeline
Herold Advisors, Inc.8,650$882K0.2%-10813F-HRTimeline
MONTAG A & ASSOCIATES INC8,588$880K0.04%-1,29013F-HRTimeline
Colonial River Investments, LLC8,549$871K0.32%-14813F-HRTimeline
SHELL ASSET MANAGEMENT CO8,544$871K0.09%-28,87013F-HRTimeline
Arax Advisory Partners8,483$865K0.01%+7,06713F-HRTimeline
Orion Porfolio Solutions, LLC8,439$860K0.01%+47313F-HRTimeline
Future Financial Wealth Managment LLC8,399$856K0.54%-2113F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Empowered Funds, LLC8,346$851K0.01%+1,45713F-HRTimeline
WEDBUSH SECURITIES INC8,257$842K0.03%+7413F-HRTimeline
Bramshill Investments, LLC8,241$840K0.06%-8,97613F-HRTimeline
Cardinal Point Capital Management ULC8,200$838K0.06%013F-HRTimeline
RIK SAYLOR FINANCIAL, INC.8,216$838K0.61%-1913F-HRTimeline
American Institute for Advanced Investm…8,065$822K0.54%-1,18013F-HRTimeline
RNC CAPITAL MANAGEMENT LLC8,000$816K0.04%013F-HRTimeline
MUFG SECURITIES AMERICAS INC.7,964$812K0.05%+1,42513F-HRTimeline
BAILARD, INC.7,949$810K0.02%+713F-HRTimeline
FLAGSHIP HARBOR ADVISORS, LLC7,945$810K0.04%-34413F-HRTimeline
Measured Wealth Private Client Group, L…7,832$798K0.22%-41113F-HRTimeline
Archer Investment Corp7,800$795K0.18%013F-HRTimeline
Composition Wealth, LLC7,771$792K0.01%+2913F-HRTimeline
Aigen Investment Management, LP7,760$791K0.12%new13F-HRTimeline
Trivium Point Advisory, LLC7,740$789K0.08%+69213F-HRTimeline
Independence Bank of Kentucky7,724$787K0.1%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…7,692$784K0.02%-12,19013F-HRTimelineGroup
Penobscot Investment Management Company…7,690$784K0.06%+2,65013F-HRTimeline
Integrated Wealth Concepts LLC7,672$782K0.01%-68513F-HRTimeline
Mathes Company, Inc.7,550$770K0.28%-50013F-HRTimeline
COLDSTREAM CAPITAL MANAGEMENT INC7,506$765K0.01%+12113F-HRTimeline
Ascent Group, LLCin group Ascent Group, LLC7,435$758K0.03%+64013F-HRTimelineGroup
MassMutual Private Wealth & Trust, FSB7,423$757K0.02%-1113F-HRTimeline
PRINCETON CAPITAL MANAGEMENT LLC7,401$754K0.2%-54113F-HRTimeline
Integrated Advisors Network LLC7,394$754K0.03%-62013F-HRTimeline
Bay Colony Advisory Group, Inc d/b/a Ba…7,388$753K0.09%-19713F-HRTimeline
Prime Capital Investment Advisors, LLC7,379$752K0.01%-13113F-HRTimeline
MINDSET WEALTH MANAGEMENT, LLC7,364$751K0.2%-12913F-HRTimeline
TWO SIGMA SECURITIES, LLC7,256$740K0.11%-1,54213F-HRTimeline
Badgley Phelps Wealth Managers, LLC7,245$739K0.02%013F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC7,199$734K<0.01%-5,59313F-HRTimelineGroup
Ballentine Partners, LLC7,160$730K0.01%+27113F-HRTimeline
TBH Global Asset Management, LLC7,154$729K0.14%013F-HRTimeline
Outlook Wealth Advisors, LLC7,120$726K0.18%-12713F-HRTimeline
MGO ONE SEVEN LLC7,069$721K0.02%+2,28513F-HRTimeline
Global Retirement Partners, LLC7,036$717K0.02%+45013F-HRTimeline
CENTAURUS FINANCIAL, INC.7,017$715K0.03%+44913F-HRTimeline
Fiduciary Group, LLC7,000$714K0.06%013F-HRTimeline
Checchi Capital Advisers, LLC6,949$708K0.05%-1,42713F-HRTimeline
U.S. Capital Wealth Advisors, LLC6,682$681K0.02%-18013F-HRTimeline
Symphony Financial, Ltd. Co.6,532$678K0.08%-93013F-HRTimeline
QUADRANT CAPITAL GROUP LLC6,604$673K0.02%-813F-HRTimeline
Twin Tree Management, LP6,576$670K0.03%new13F-HRTimeline
Equitable Holdings, Inc.in group Equitable Holdings, Inc.6,505$663K<0.01%-91713F-HRTimelineGroup
TWO SIGMA ADVISERS, LPin group TWO SIGMA INVESTMENTS, LP6,500$663K<0.01%-29,60013F-HRTimelineGroup
GAMMA Investing LLC6,497$662K0.04%+1,02113F-HRTimeline
Farther Finance Advisors, LLC6,470$660K0.01%+1,08813F-HRTimeline
Ascentis Wealth Management, LLCgroup of 2 filers holding6,435$656K-179Timeline
Caption Management, LLC6,400$652K0.04%new13F-HRTimeline
Columbia Asset Management6,392$652K0.12%013F-HRTimeline
Gerber Kawasaki Wealth & Investment Man…6,332$645K0.02%+4913F-HRTimeline
Campbell & CO Investment Adviser LLC6,320$644K0.05%+1,02313F-HRTimeline
OSSIAM6,307$643K0.01%-8,96613F-HRTimeline
Monument Capital Management6,239$636K0.16%-31513F-HRTimeline
Callan Family Office, LLC6,066$618K0.02%-1,50913F-HRTimeline
JACKSON SQUARE CAPITAL, LLC5,999$612K0.13%new13F-HRTimeline
Prospera Financial Services Inc5,920$604K0.01%+1,42813F-HRTimeline
SHEETS SMITH WEALTH MANAGEMENT5,910$602K0.07%013F-HRTimeline
Ellevest, Inc.5,837$595K0.08%-67913F-HRTimeline
TD Waterhouse Canada Inc.5,802$594K<0.01%-74113F-HRTimeline
WOLVERINE TRADING, LLC5,919$594K0.01%new13F-HRTimeline
Pinnacle Family Advisors, LLC5,826$594K0.26%+22513F-HRTimeline
OneDigital Investment Advisors LLC5,794$591K0.01%-41413F-HRTimeline
Somerset Trust Co5,785$590K0.18%+6413F-HRTimeline
West Wealth Group, LLC5,551$587K0.13%+5113F-HRTimeline
EWG Elevate Inc.5,722$583K0.18%013F-HRTimeline
SIGNATUREFD, LLC5,715$583K0.01%-1,33013F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK5,713$582K<0.01%-413F-HRTimelineGroup
FIDELIS CAPITAL PARTNERS, LLC5,713$582K0.05%+1313F-HRTimeline
MUFG Securities EMEA plc5,653$576K0.01%+4,78813F-HRTimeline
WASHINGTON TRUST Co5,586$569K0.02%013F-HRTimeline
Garden State Investment Advisory Servic…5,505$565K0.14%-2713F-HRTimeline
Concurrent Investment Advisors, LLCin group Concurrent Investment Advisor…5,522$563K0.01%+6513F-HRTimelineGroup
Chicago Partners Investment Group LLC5,342$556K0.01%+9013F-HRTimeline
Advisors Capital Management, LLC5,416$552K0.01%+98913F-HRTimeline
Estabrook Capital Management5,337$544K0.08%013F-HRTimeline
Financial Management Professionals, Inc.5,273$542K0.06%+3313F-HRTimeline
ATALANTA SOSNOFF CAPITAL, LLCin group ATALANTA SOSNOFF CAPITAL, LLC5,225$533K0.01%-10913F-HRTimelineGroup
Valued Retirements, Inc.5,190$532K0.6%013F-HRTimeline
Smith Asset Management Co., LLC5,215$532K0.45%013F-HRTimeline
Kapstone Financial Advisors LLC5,195$530K0.25%-59713F-HRTimeline
Texas Yale Capital Corp.5,155$526K0.02%013F-HRTimeline
Arete Wealth Advisors, LLC5,150$525K0.03%013F-HRTimeline
Stratos Wealth Partners, LTD.in group Stratos Wealth Partners, LTD.5,147$525K0.01%+713F-HRTimelineGroup
Koshinski Asset Management, Inc.5,108$521K0.03%+9813F-HRTimeline
Kingsview Wealth Management, LLC5,103$520K0.01%+3313F-HRTimeline
Mechanics Bank Trust Department5,093$519K0.07%+61013F-HRTimeline
Signal Advisors Wealth, LLC5,047$515K0.05%new13F-HRTimeline
NorthStar Asset Management LLC /NJ/5,015$511K0.24%013F-HRTimeline
Linscomb Wealth, Inc.4,969$507K0.02%-5113F-HRTimeline
Performance Wealth Partners, LLC4,939$503K0.01%-6813F-HRTimeline
Point72 Asia (Singapore) Pte. Ltd.4,916$501K0.08%-21,39113F-HRTimeline
INTEGRITY ALLIANCE, LLC.4,874$497K0.02%+1,92913F-HRTimeline
ABN AMRO INVESTMENT SOLUTIONSin group ABN AMRO INVESTMENT SOLUTIONS4,844$494K0.01%-60713F-HRTimelineGroup
GF FUND MANAGEMENT CO. LTD.4,841$493K0.01%-34013F-HRTimeline
Canada Post Corp Registered Pension Plan4,887$490K0.02%013F-HRTimeline
AUGUSTINE ASSET MANAGEMENT INC4,800$489K0.1%-4713F-HRTimeline
NorthRock Partners, LLC4,774$487K0.01%-47013F-HRTimeline
TD PRIVATE CLIENT WEALTH LLC4,755$485K0.01%-2,11413F-HRTimeline
Cynosure Group, LLC4,699$479K0.05%013F-HR/ATimeline
High Net Worth Advisory Group LLC4,692$478K0.12%013F-HRTimeline
GM Advisory Group, LLC4,685$478K0.02%-2,49513F-HRTimeline
DAVIS R M INC4,618$471K0.01%-20013F-HRTimeline
Fisher Asset Management, LLC4,597$469K<0.01%-46813F-HRTimeline
Aspen Investment Management Inc4,539$463K0.18%+413F-HRTimeline
Horizon Investments, LLC4,536$462K0.01%-41413F-HRTimeline
Welch Group, LLC4,531$462K0.02%013F-HRTimeline
HANCOCK WHITNEY CORP4,529$462K0.01%-29913F-HRTimeline
Wilmington Savings Fund Society, FSB4,520$461K0.01%-2,52113F-HR/ATimeline
LANARK FINANCIAL, INC.4,519$461K0.04%-1513F-HRTimeline
Hilltop Holdings Inc.in group Hilltop Holdings Inc.4,518$461K0.02%-4013F-HRTimelineGroup
Teamwork Financial Advisors, LLC4,469$456K0.05%-713F-HRTimeline
Curi Capital, LLC4,421$453K0.01%-43213F-HRTimeline
QUEST INVESTMENT MANAGEMENT LLC4,421$451K0.05%+713F-HRTimeline
Putney Financial Group LLC4,359$444K0.44%-28613F-HRTimeline
Ameliora Wealth Management Ltd.4,350$443K0.15%013F-HRTimeline
Prestige Wealth Management Group LLC4,338$442K0.09%+16613F-HR/ATimeline
ARMSTRONG ADVISORY GROUP, INC4,335$442K0.03%013F-HRTimeline
WealthBridge Capital Management, LLC4,311$439K0.1%+2713F-HRTimeline
PROFUND ADVISORS LLC4,290$437K0.01%-4213F-HRTimeline
BCO Wealth Management LLC4,275$436K0.29%013F-HRTimeline
FIL Ltdin group FIL Ltd4,274$436K<0.01%+16313F-HRTimelineGroup
Meeder Advisory Services, Inc.group of 2 filers holding4,242$432K+284Timeline