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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
MJT & Associates Financial Advisory Gro…55$5.62K<0.01%013F-HRTimeline
ELEVATION WEALTH PARTNERS, LLC52$5.31K<0.01%new13F-HRTimeline
Bullseye Investment Management, LLC50$5.11K<0.01%013F-HRTimeline
SUMMIT SECURITIES GROUP LLC49$5K<0.01%-38913F-HRTimeline
Mowery & Schoenfeld Wealth Management, …49$5K0.01%013F-HRTimeline
BROWN, LISLE/CUMMINGS, INC.47$4.8K<0.01%new13F-HRTimeline
Wilkerson Advisory Group LLC43$4.39K<0.01%new13F-HRTimeline
Cornerstone Financial Management LLC43$4.39K<0.01%+1013F-HR/ATimeline
1620 INVESTMENT ADVISORS, INC.42$4.29K<0.01%013F-HRTimeline
Copia Wealth Management42$4.29K<0.01%013F-HRTimeline
Legacy Wealth Managment, LLC/IDin group Legacy Wealth Managment, LLC/…41$4.19K<0.01%+3713F-HRTimelineGroup
RAFFA WEALTH MANAGEMENT, LLC37$3.78K<0.01%013F-HRTimeline
United Community Bankin group United Community Bank37$3.78K<0.01%013F-HRTimelineGroup
SouthState Bank Corpin group SouthState Bank Corp36$3.68K<0.01%+513F-HRTimelineGroup
Ares Financial Consulting, LLC35$3.53K<0.01%013F-HRTimeline
Clayton Financial Group LLC34$3.47K<0.01%013F-HRTimeline
Holos Integrated Wealth LLC30$3.12K<0.01%+113F-HRTimeline
Marquette Asset Management, LLC30$3.06K<0.01%new13F-HRTimeline
Aspect Partners, LLC29$2.96K<0.01%013F-HRTimeline
HOLLENCREST CAPITAL MANAGEMENT29$2.96K<0.01%013F-HRTimeline
Richard W. Paul & Associates, LLC28$2.86K<0.01%-2213F-HRTimeline
Principia Wealth Advisory, LLC27$2.76K<0.01%+713F-HRTimeline
Asset Dedication, LLC25$2.55K<0.01%-6013F-HRTimeline
CBIZ Investment Advisory Services, LLC23$2.37K<0.01%-3713F-HRTimeline
Sunbelt Securities, Inc.22$2.25K<0.01%-14213F-HRTimeline
THURSTON, SPRINGER, MILLER, HERD & TITA…20$2.04K<0.01%013F-HRTimeline
OGOREK ANTHONY JOSEPH /NY/ /ADV25$2K<0.01%013F-HR/ATimeline
NBT BANK, N.A.in group NBT BANK, N.A.17$1.74K<0.01%new13F-HRTimelineGroup
Rialto Wealth Management, LLC16$1.64K<0.01%+1013F-HRTimeline
Kilter Group LLC15$1.53K<0.01%-713F-HRTimeline
Clark Wealth Partners15$1.53K<0.01%+1513F-HRTimeline
Millstone Evans Group, LLC14$1.43K<0.01%013F-HRTimeline
Synergy Investment Management, LLC14$1.43K<0.01%new13F-HRTimeline
Burk Holdings LLC14$1.43K<0.01%new13F-HRTimeline
American Capital Advisory, LLC13$1.33K<0.01%+213F-HRTimeline
FINANCIAL CONSULATE, INC10$1.02K<0.01%013F-HRTimeline
Portus Wealth Advisors, LLC10$1.02K<0.01%new13F-HRTimeline
Capital Advisors, Ltd. LLC10$1K<0.01%013F-HRTimeline
Washington Trust Advisors, Inc.9$919<0.01%new13F-HRTimeline
TopTier Wealth Management, LLC9$919<0.01%new13F-HRTimeline
Caitong International Asset Management …8$817<0.01%new13F-HRTimeline
Hughes Financial Services, LLC8$817<0.01%+613F-HRTimeline
Silicon Valley Capital Partners7$715<0.01%new13F-HRTimeline
Quaker Wealth Management, LLC7$715<0.01%+113F-HRTimeline
TFC Financial Management, Inc.7$715<0.01%013F-HRTimeline
GS Investments, Inc.6$613<0.01%new13F-HRTimeline
Bare Financial Services, Inc6$613<0.01%new13F-HRTimeline
WOLFF WIESE MAGANA LLC5$511<0.01%013F-HRTimeline
Destiny Wealth Partners, LLC5$511<0.01%new13F-HRTimeline
Davis Capital Management4$409<0.01%013F-HRTimeline
Raleigh Capital Management Inc.3$338<0.01%-9513F-HRTimeline
PROATHLETE WEALTH MANAGEMENT LLC3$311<0.01%013F-HRTimeline
Colonial Trust Co / SCin group Colonial Trust Advisors3$306<0.01%-613F-HRTimelineGroup
Beaird Harris Wealth Management, LLC2$205<0.01%-35013F-HRTimeline
DecisionPoint Financial, LLC2$205<0.01%013F-HRTimeline
Private Wealth Management Group, LLC1$103<0.01%013F-HRTimeline
3 FACTOR INDEXING, LLC1$103<0.01%13F-HRTimeline