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Disclosery

IRM IRON MTN INC DEL

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REIT (common), issuer CIK 1020569

1,057 managers (1,089 13F filers) reported a position in IRM shares at 2026-03-31, 253,245,822 shares in all. 157 filers opened a position and 95 filers sold out during the quarter.

Managers
1,057
13F filers
1,089
New
157
Added
403
Reduced
348
Sold out
95
Shares held by filers
253,245,822

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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
HOWLAND CAPITAL MANAGEMENT LLC4,147$425K0.02%-2713F-HRTimeline
NorthCrest Asset Manangement, LLC4,113$425K0.01%-9213F-HRTimeline
Cornerstone Wealth Management, LLC4,151$424K0.02%+3113F-HRTimeline
WealthBridge Capital Management, LLC4,130$422K0.1%-16113F-HRTimeline
Hilton Head Capital Partners, LLC4,120$421K0.24%013F-HRTimeline
Sivia Capital Partners, LLC4,109$420K0.08%+65813F-HRTimeline
WADDELL & ASSOCIATES, LLC4,108$420K0.02%new13F-HRTimeline
NATURAL INVESTMENTS, LLC4,109$419K0.1%+5613F-HRTimeline
Disciplined Equity Management, Inc.4,085$417K0.21%013F-HRTimeline
Advisory Alpha, LLC4,076$416K0.01%new13F-HRTimeline
Alliance Wealth Advisors, LLC /UT4,073$416K0.09%-1313F-HRTimeline
INTEGRITY ALLIANCE, LLC.4,067$415K0.02%-47813F-HRTimeline
Axis Wealth Partners, LLC4,047$413K0.22%+1613F-HRTimeline
Csenge Advisory Group4,037$412K0.02%+1,49513F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…4,083$412K0.03%-7613F-HRTimeline
Gateway Wealth Partners, LLC4,017$410K0.02%new13F-HRTimeline
PENSION & WEALTH MANAGEMENT ADVISORS, I…3,996$408K0.12%-5413F-HRTimeline
Arax Advisory Partners3,985$408K0.01%-63913F-HRTimeline
FLAGSHIP HARBOR ADVISORS, LLC3,987$407K0.02%+2,59413F-HRTimeline
Beverly Hills Private Wealth, LLC3,956$404K0.07%-1113F-HRTimeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…3,938$402K<0.01%+1,24313F-HRTimelineGroup
PROFUND ADVISORS LLC3,910$399K0.01%-1,17713F-HRTimeline
Bogart Wealth, LLC3,900$398K0.02%-1913F-HRTimeline
ARMSTRONG ADVISORY GROUP, INC3,894$398K0.03%-44113F-HRTimeline
CFO CAPITAL MANAGEMENT LLC3,874$396K0.33%-1,16513F-HRTimeline
Parallel Advisors, LLC3,857$394K0.01%+72713F-HR/ATimeline
Ledgewood Wealth Advisors, LLC3,806$389K0.22%013F-HRTimeline
Wedmont Private Capital3,634$389K0.01%+28613F-HRTimeline
Sculati Wealth Management, LLC3,795$388K0.14%013F-HRTimeline
Empirical Financial Services, LLC d.b.a…3,780$386K0.01%new13F-HRTimeline
Hilltop Holdings Inc.in group Hilltop Holdings Inc.3,776$386K0.04%-50513F-HRTimelineGroup
Armor Investment Advisors, LLC3,773$385K0.14%013F-HRTimeline
Perigon Wealth Management, LLC3,748$383K0.01%+45113F-HRTimeline
Meeder Advisory Services, Inc.in group Meeder Advisory Services, Inc.3,741$382K0.02%+10713F-HRTimelineGroup
Equitable Holdings, Inc.in group Equitable Holdings, Inc.4,551$381K<0.01%+75013F-HRTimelineGroup
Signal Advisors Wealth, LLC3,735$381K0.03%-28813F-HRTimeline
Ausdal Financial Partners, Inc.3,709$379K0.02%+11313F-HRTimeline
Significant Wealth Partners LLC3,693$377K0.46%new13F-HRTimeline
SAGESPRING WEALTH PARTNERS, LLC3,686$376K0.01%+24113F-HRTimeline
Putney Financial Group LLC3,659$374K0.38%-42013F-HRTimeline
PARK NATIONAL CORP /OH/3,656$373K0.01%-18213F-HRTimeline
AIRE ADVISORS, LLC3,642$372K0.07%+5013F-HRTimeline
STEPHENS INC /AR/in group Stephens Investment Managemen…3,639$372K<0.01%-20613F-HRTimelineGroup
Dakota Wealth Management3,621$370K0.01%+113F-HR/ATimeline
Three Magnolias Financial Advisors, LLC3,600$368K0.23%013F-HRTimeline
Ellevest, Inc.3,597$367K0.05%-65313F-HRTimeline
Teamwork Financial Advisors, LLC3,580$366K0.04%-87313F-HRTimeline
Composition Wealth, LLC3,579$366K0.01%+23313F-HRTimeline
Koshinski Asset Management, Inc.3,579$366K0.02%-48413F-HRTimeline
ATLAS CAPITAL ADVISORS INC.3,575$365K0.04%-1,16713F-HRTimeline
GATEWAY INVESTMENT ADVISERS LLC3,557$363K<0.01%new13F-HRTimeline
Monument Capital Management3,549$363K0.09%+413F-HRTimeline
Simmons Bankin group Simmons Bank3,545$362K0.02%new13F-HRTimelineGroup
Prestige Wealth Management Group LLC3,537$361K0.07%+3,38913F-HRTimeline
PANAGORA ASSET MANAGEMENT INC3,524$360K<0.01%013F-HRTimeline
Bull Harbor Capital LLC3,507$358K0.1%13F-HRTimeline
Long Road Investment Counsel, LLC3,500$357K0.14%013F-HRTimeline
PHILADELPHIA TRUST CO3,500$357K0.03%013F-HRTimeline
Fort Point Capital Partners LLC3,463$356K0.05%new13F-HRTimeline
VestGen Advisors, LLC2,821$356K0.01%new13F-HRTimeline
Fisher Asset Management, LLC3,482$356K<0.01%-73413F-HRTimeline
Frec Markets, Inc.in group Frec Markets, Inc.3,462$354K0.06%new13F-HRTimelineGroup
GREAT VALLEY ADVISOR GROUP, INC.in group GREAT VALLEY ADVISOR GROUP, I…3,453$352K0.01%new13F-HRTimelineGroup
Fulton Bank, N.A.3,448$352K0.01%new13F-HRTimeline
Pathway Financial Advisers, LLC3,437$351K0.1%-21113F-HRTimeline
Continuum Advisory, LLC3,410$348K0.03%+58013F-HRTimeline
Palacios Wealth Management, LLC2,755$347K0.22%013F-HRTimeline
Leonteq Securities AG3,364$344K0.02%-7,10313F-HRTimeline
RETIREMENT INCOME SOLUTIONS, INC3,350$342K0.06%013F-HRTimeline
Richmond Investment Services, LLC3,331$340K0.05%+613F-HRTimeline
DAVIS R M INC3,318$339K0.01%013F-HRTimeline
Atria Investments, Inc3,318$339K<0.01%+31213F-HRTimeline
American Investment Services, Inc.3,304$337K0.08%+20113F-HRTimeline
Coastal Bridge Advisors, LLC3,301$337K0.02%+6513F-HRTimeline
Cetera Trust Company, N.A3,285$336K0.19%-30013F-HRTimeline
FOSTER & MOTLEY INC3,283$335K0.02%013F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…3,272$334K<0.01%new13F-HRTimelineGroup
Sowell Financial Services LLC3,263$333K0.01%+51913F-HRTimeline
Strategic Financial Concepts, LLC3,236$331K0.08%-76413F-HRTimeline
Integrated Advisors Network LLC3,229$330K0.02%-3,00913F-HRTimeline
Sovereign Financial Group, Inc.3,227$330K0.06%+2813F-HRTimeline
Pinnacle Financial Partners, Inc.in group Pinnacle Financial Partners, …3,204$327K<0.01%new13F-HRTimelineGroup
E&G Advisors, LLC3,200$327K0.07%013F-HRTimeline
Perennial Investment Advisors, LLC3,168$324K0.03%+18013F-HRTimeline
Vestmark Advisory Solutions, Inc.3,149$322K<0.01%-23413F-HRTimeline
Kovack Advisors, Inc.3,141$319K0.02%-19813F-HRTimeline
Fortis Capital Management LLC3,123$319K0.04%-1413F-HRTimeline
Fortitude Family Office, LLC3,112$318K0.07%013F-HRTimeline
Ameliora Wealth Management Ltd.3,100$317K0.1%-1,25013F-HRTimeline
MATHER GROUP, LLC.3,094$316K<0.01%-713F-HRTimeline
TradeLink Capital LLC3,083$315K2.38%new13F-HRTimeline
WealthCare Asset Management, LLC3,057$312K0.33%+3013F-HRTimeline
Diversified Enterprises, LLC3,053$312K0.02%+30613F-HRTimeline
MONTAG A & ASSOCIATES INC3,019$311K0.01%013F-HRTimeline
Symphony Financial, Ltd. Co.3,048$309K0.04%-20013F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC3,006$307K0.01%new13F-HRTimelineGroup
Clean Yield Group3,000$306K0.09%013F-HRTimeline
Asset Planning,Inc3,000$306K0.22%013F-HRTimeline
Ashton Thomas Private Wealth, LLC2,988$305K0.01%new13F-HRTimeline
Onyx Bridge Wealth Group LLC2,980$305K0.03%+2513F-HRTimeline
James Hambro & Partners LLP2,972$304K0.01%013F-HRTimeline
MISSION WEALTH MANAGEMENT, LP2,948$301K0.01%+16213F-HRTimeline
Crown Wealth Group, LLC2,948$301K0.09%-11313F-HRTimeline
Relyea Zuckerberg Hanson LLC2,925$299K0.03%+3413F-HRTimeline
Baker Avenue Asset Management, LP2,890$295K0.01%new13F-HRTimeline
ROTHSCHILD INVESTMENT LLC2,877$294K0.02%+2,09713F-HRTimeline
HBK Sorce Advisory LLC2,276$293K0.01%new13F-HRTimeline
Southland Equity Partners LLC2,867$293K0.06%-15113F-HRTimeline
Charter Oak Capital Management, LLC2,862$292K0.02%013F-HRTimeline
BTC Capital Management, Inc.in group BTC Capital Management, Inc.2,861$292K0.02%013F-HRTimelineGroup
Beaumont Financial Advisors, LLC2,853$291K0.02%+2213F-HRTimeline
SVB WEALTH LLC2,822$288K0.02%+3713F-HRTimeline
IMA Advisory Services, Inc.2,787$287K0.03%-18513F-HRTimeline
CIGNA INVESTMENTS INC /NEWin group CIGNA INVESTMENTS INC /NEW2,808$287K0.04%-8113F-HRTimelineGroup
Jordan Park Group LLC2,803$286K0.02%013F-HRTimeline
Savvy Advisors, Inc.2,802$286K0.01%+5913F-HRTimeline
WEALTH ALLIANCE, LLC2,801$286K0.03%new13F-HRTimeline
INVESTMENT HOUSE LLC2,800$286K0.01%013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…2,796$286K0.01%+1,09213F-HR/ATimelineGroup
Aptus Capital Advisors, LLC2,793$285K<0.01%-1,20713F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC2,791$285K<0.01%+1,78013F-HRTimeline
American Institute for Advanced Investm…2,790$285K0.18%-1,88013F-HRTimeline
NWAM LLC2,783$284K0.02%+30213F-HRTimeline
COMMERZBANK AKTIENGESELLSCHAFT /FI2,758$282K0.01%-9613F-HRTimeline
TCI Wealth Advisors, Inc.2,756$282K0.01%+4413F-HRTimeline
Optas, LLC2,750$281K0.04%new13F-HRTimeline
Allen Mooney & Barnes Investment Adviso…2,733$279K0.04%-6613F-HRTimeline
CARDIFF PARK ADVISORS, LLC2,725$278K0.02%new13F-HRTimeline
TRUE Private Wealth Advisors2,725$278K0.03%-8813F-HRTimeline
Advisor OS, LLCin group Advisor OS, LLC2,723$278K0.02%new13F-HRTimelineGroup
Patriot Financial Group Insurance Agenc…2,716$277K0.02%new13F-HRTimeline
SeaBridge Investment Advisors LLC2,711$277K0.05%new13F-HRTimeline
Allen Investment Management, LLCin group ALLEN OPERATIONS LLC2,696$275K<0.01%013F-HRTimelineGroup
Premier Path Wealth Partners, LLC2,694$275K0.04%-12013F-HRTimeline
Walker Asset Management, LLC2,691$275K0.15%+2613F-HRTimeline
Keystone Financial Group2,679$274K0.02%013F-HRTimeline
Sigma Planning Corp2,674$273K0.01%-93113F-HRTimeline
AlphaStar Capital Management, LLC2,666$272K0.02%new13F-HRTimeline
Parcion Private Wealth LLC2,666$272K0.02%new13F-HRTimeline
PATTON FUND MANAGEMENT, INC.2,663$272K0.05%013F-HRTimeline
Vise Technologies, Inc.3,270$271K0.01%013F-HRTimeline
Seelaus Asset Management LLC2,650$271K0.2%-40013F-HRTimeline
CWA Asset Management Group, LLC2,649$271K0.01%-32113F-HRTimeline
Aberdeen Wealth Management LLC2,645$270K0.12%013F-HRTimeline
KAVAR CAPITAL PARTNERS GROUP, LLC2,642$270K0.03%-50813F-HRTimeline
EVOLVE PRIVATE WEALTH, LLC2,591$265K0.01%new13F-HRTimeline
PERSONAL CFO SOLUTIONS, LLC2,550$263K0.04%+2213F-HRTimeline
Dynamic Technology Lab Private Ltd2,557$261K0.04%-2,83013F-HRTimeline
Centerpoint Advisory Group2,535$259K0.19%013F-HRTimeline
Segment Wealth Management, LLC2,534$259K0.02%013F-HRTimeline
Mattson Financial Services, LLC2,516$257K0.06%new13F-HRTimeline
XXI WEALTH, LLC2,506$256K0.14%new13F-HRTimeline
Brown Financial Advisors2,490$254K0.1%new13F-HRTimeline
Bayforest Capital Ltd2,476$253K0.28%-113F-HRTimeline
Samalin Investment Counsel, LLC2,463$252K0.09%-11513F-HRTimeline
Fielder Capital Group LLC2,437$249K0.05%new13F-HRTimeline
FIDEURAM - INTESA SANPAOLO PRIVATE BANK…2,431$248K0.01%-62413F-HRTimeline
Bridgelight Financial Advisors, Inc.2,429$248K0.21%new13F-HRTimeline
AssuredPartners Investment Advisors, LLC2,352$245K0.03%new13F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC2,400$245K<0.01%new13F-HRTimeline
DV Trading LLC2,400$245K0.02%new13F-HRTimeline
Bedel Financial Consulting, Inc.2,392$244K0.03%new13F-HRTimeline
PINNACLE ASSOCIATES LTD2,379$243K<0.01%new13F-HRTimeline
BEESE FULMER INVESTMENT MANAGEMENT, INC.2,350$242K0.02%new13F-HRTimeline
Jacobi Capital Management LLC2,363$241K0.01%new13F-HRTimeline
SCHMIDT P J INVESTMENT MANAGEMENT INC2,360$241K0.04%new13F-HRTimeline
Prosperity Consulting Group, LLC2,360$241K0.01%new13F-HRTimeline
ARMISTICE CAPITAL, LLC2,351$240K0.01%new13F-HRTimeline
Intrua Financial, LLC2,349$240K0.03%new13F-HRTimeline
Rothschild Wealth LLC2,330$238K0.02%new13F-HRTimeline
Turtle Creek Wealth Advisors, LLC2,324$237K0.02%new13F-HRTimeline
Strategic Blueprint, LLC2,316$237K0.01%new13F-HRTimeline
Mayflower Financial Advisors, LLC2,315$236K0.03%new13F-HRTimeline
FORTRESS PRIVATE LEDGER, LLC2,306$236K0.07%new13F-HRTimeline
Soltis Investment Advisors LLC2,304$235K0.02%new13F-HRTimeline
Saxony Capital Management, LLC2,283$233K0.14%new13F-HRTimeline
Fayez Sarofim & Coin group Fayez Sarofim & Co2,280$233K<0.01%new13F-HRTimelineGroup
SMITH, MOORE & CO.2,251$230K0.02%new13F-HRTimeline
Mystic Asset Management, Inc.2,247$229K0.05%new13F-HRTimeline
Quantbot Technologies LP2,233$228K0.01%new13F-HRTimeline
Avidian Wealth Enterprises, LLC2,228$228K0.01%new13F-HRTimeline
Heritage Wealth Advisors2,222$227K0.01%013F-HRTimeline
SJS Investment Consulting Inc.2,218$227K0.03%+12513F-HRTimeline
NATIONS FINANCIAL GROUP INC, /IA/ /ADV2,215$226K0.01%new13F-HRTimeline
Marex Group Ltdin group Marex Group Ltd2,215$226K<0.01%-83213F-HRTimelineGroup
Community Bank & Trust, Waco, Texas2,200$225K0.04%new13F-HRTimeline
IFP Advisors, Inc2,201$225K<0.01%-92013F-HRTimeline
AlphaCore Capital LLC2,183$225K0.01%new13F-HRTimeline
Citizens Business Bank2,199$225K0.04%-65013F-HRTimeline
SPIREPOINT PRIVATE CLIENT, LLC2,197$224K0.02%-25813F-HRTimeline
Pallas Capital Advisors LLC2,191$224K0.01%new13F-HRTimeline
IBEX WEALTH ADVISORS2,178$222K0.02%new13F-HRTimeline
Empower Advisory Group, LLCin group Empower Annuity Insurance Co …2,155$220K<0.01%new13F-HRTimelineGroup
BI Asset Management Fondsmaeglerselskab…in group BI Asset Management Fondsmaeg…2,142$219K<0.01%-12,00713F-HRTimelineGroup
Paller Financial Services Inc2,132$218K0.18%new13F-HRTimeline
Stiles Financial Services Inc2,127$217K0.07%new13F-HRTimeline
Brookwood Investment Group LLC2,127$217K0.03%new13F-HRTimeline
Indivisible Partners2,125$217K0.02%new13F-HRTimeline
Platform Technology Partners2,120$217K0.04%new13F-HRTimeline
Warm Springs Advisors Inc.2,117$216K0.18%new13F-HRTimeline