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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
Abel Hall, LLC2,106$215K0.05%new13F-HRTimeline
Keebeck Wealth Management2,083$215K0.02%new13F-HRTimeline
HUNTER ASSOCIATES INVESTMENT MANAGEMENT…2,099$214K0.03%new13F-HRTimeline
Deseret Mutual Benefit Administrators2,093$214K0.07%+88613F-HRTimeline
SILVER OAK SECURITIES, INCORPORATED2,091$214K0.02%new13F-HRTimeline
Copeland Capital Management, LLC2,091$214K<0.01%+1,01613F-HRTimeline
Sound Income Strategies, LLC2,084$210K0.01%-33013F-HRTimeline
Second Line Capital, LLC1,661$209K0.04%new13F-HRTimeline
PRIVATE TRUST CO NA2,048$209K0.02%+2313F-HRTimeline
Valley Financial Group, Inc.2,048$209K0.11%new13F-HRTimeline
ASPIRIANT, LLC2,043$209K0.01%new13F-HRTimeline
Ignite Planners, LLC2,041$208K0.03%new13F-HRTimeline
MOSAIC FAMILY WEALTH PARTNERS, LLC2,040$208K0.02%new13F-HRTimeline
Dorsey & Whitney Trust CO LLC2,037$208K0.01%new13F-HRTimeline
Waldron Private Wealth LLC2,023$207K0.01%new13F-HRTimeline
PDS Planning, Inc2,012$205K0.01%new13F-HRTimeline
Root Financial Partners, LLC2,010$205K0.01%+80113F-HRTimeline
Supplemental Annuity Collective Trust o…2,001$204K0.06%new13F-HRTimeline
Apriem Advisors2,000$204K0.02%new13F-HRTimeline
RW Investment Management LLC2,000$204K0.02%13F-HRTimeline
Financial Perspectives, Inc2,000$204K0.06%013F-HRTimeline
FLPUTNAM INVESTMENT MANAGEMENT CO1,969$201K<0.01%-16,73713F-HRTimeline
Strategic Investment Solutions, Inc. /IL1,923$196K0.05%013F-HRTimeline
Quarry LP1,907$195K0.04%new13F-HRTimeline
Cullen/Frost Bankers, Inc.in group Cullen/Frost Bankers, Inc.1,904$195K<0.01%-16513F-HRTimelineGroup
RICHARDSON FINANCIAL SERVICES INC.1,884$192K0.12%+65413F-HRTimeline
Coastline Trust Co1,856$190K0.02%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
TOWARZYSTWO FUNDUSZY INWESTYCYJNYCH PZU…1,830$187K0.06%+25013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
MONETARY MANAGEMENT GROUP INC1,800$184K0.04%013F-HRTimeline
Versant Capital Management, Inc1,741$178K0.02%+42613F-HRTimeline
NVWM, LLC1,699$174K0.04%013F-HRTimeline
SHP Wealth Management1,680$172K0.01%-7013F-HRTimeline
Penserra Capital Management LLCin group Penserra Capital Management L…1,669$170K<0.01%+5113F-HRTimelineGroup
Smartleaf Asset Management LLC1,650$161K0.01%-43013F-HRTimeline
Muzinich & Co., Inc.1,567$160K0.06%+96413F-HRTimeline
Keating Financial Advisory Services, In…1,547$158K0.03%-6,33813F-HRTimeline
WHITTIER TRUST CO1,497$156K<0.01%-24413F-HRTimeline
FIRST FINANCIAL CORP /IN/1,500$153K0.06%013F-HRTimeline
Parkside Financial Bank & Trust1,499$153K0.01%-19113F-HRTimeline
Livforsakringsbolaget Skandia, Omsesidi…1,461$150K0.01%013F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.1,369$140K0.01%new13F-HR/ATimelineGroup
UMB Bank, n.a.1,349$138K<0.01%-62113F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
LOS ANGELES CAPITAL MANAGEMENT LLC1,348$138K<0.01%013F-HRTimeline
Cassaday & Co Wealth Management LLC1,324$135K<0.01%new13F-HRTimeline
Basecamp Wealth Advisors LLC1,314$134K0.03%+3713F-HRTimeline
Tower View Wealth Management LLC1,314$134K0.07%+1413F-HRTimeline
Wealth Enhancement Trust Services, Inc.1,307$133K0.02%+1513F-HRTimeline
Silvant Capital Management LLC1,292$132K<0.01%013F-HRTimeline
Security National Bank1,277$130K0.02%+2313F-HRTimeline
HHM Wealth Advisors, LLC1,244$127K0.01%013F-HRTimeline
TOTH FINANCIAL ADVISORY CORP1,229$126K0.01%013F-HRTimeline
First Command Advisory Services, Inc.1,217$124K<0.01%+11713F-HRTimeline
Lavaca Capital LLC1,209$123K0.02%+24813F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.1,175$120K<0.01%+86513F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Kozak & Associates, Inc.1,000$112K0.02%013F-HRTimeline
True Wealth Design, LLC1,049$107K0.03%+33313F-HRTimeline
SITTNER & NELSON, LLC1,026$105K0.04%013F-HRTimeline
Cromwell Holdings LLC999$103K0.06%013F-HRTimeline
Addison Advisors LLC972$99.2K0.02%013F-HRTimeline
CERTUITY, LLC960$98.1K0.01%new13F-HRTimeline
Bank of New Hampshire910$92.9K0.02%013F-HRTimeline
Eurizon SLJ Capital Ltd905$92.4K0.04%-113F-HRTimeline
Parvin Asset Management, LLC820$83.8K0.06%013F-HRTimeline
CYBER HORNET ETFs LLC813$82.1K0.05%-3013F-HRTimeline
Rosenberg Matthew Hamilton790$80.7K0.02%-18013F-HRTimeline
Corsicana & Co.900$77.4K0.05%+45013F-HRTimeline
Abound Wealth Management748$76.4K0.02%013F-HRTimeline
EASTERN BANK735$75.1K<0.01%013F-HRTimeline
Dunhill Financial, LLC730$74.6K0.02%+30613F-HRTimeline
Caldwell Trust Co725$74.1K0.01%013F-HRTimeline
JFS WEALTH ADVISORS, LLC721$73.6K<0.01%-3313F-HRTimeline
PROFFITT & GOODSON INC704$71.9K0.01%013F-HRTimeline
Avalon Trust Co700$71.5K<0.01%-50013F-HRTimeline
Global X Japan Co., Ltd.685$70K<0.01%+14413F-HRTimeline
FIRST HORIZON CORP660$67.4K<0.01%+1013F-HRTimeline
CVA Family Office, LLC660$67.4K0.01%+15813F-HRTimeline
Physician Wealth Advisors, Inc.657$67.1K0.01%+6013F-HRTimeline
VALLEY NATIONAL ADVISERS INC655$66K0.01%013F-HRTimeline
Avion Wealth655$66K0.01%+2513F-HRTimeline
ENTRUST FINANCIAL LLC643$65.7K0.05%+613F-HRTimeline
Financial Avengers, Inc.618$63.1K0.03%+713F-HRTimeline
Caitlin John, LLC603$61.6K0.04%+613F-HRTimeline
VISION FINANCIAL MARKETS LLC600$61.3K0.06%-75013F-HRTimeline
Global Wealth Strategies & Associates600$61.3K0.02%013F-HRTimeline
Sawyer & Company, Inc595$60.8K0.02%013F-HRTimeline
CENTRAL TRUST Co568$58K<0.01%-68413F-HRTimeline
ZIONS BANCORPORATION, NATIONAL ASSOCIAT…564$57.6K<0.01%+8313F-HRTimeline
Essential Partners LLC561$57.3K0.02%+11013F-HRTimeline
WHITTIER TRUST CO OF NEVADA INC547$57.1K<0.01%-513F-HRTimeline
Harvest Fund Management Co., Ltdin group Harvest Fund Management Co., …560$57K<0.01%new13F-HRTimelineGroup
Annis Gardner Whiting Capital Advisors,…553$56.5K0.01%+2313F-HRTimeline
Crewe Advisors LLC524$53.5K<0.01%+1913F-HRTimeline
HOEY INVESTMENTS, INC505$51.6K0.01%013F-HRTimeline
ALBION FINANCIAL GROUP /UT500$51.1K<0.01%new13F-HRTimeline
Morse Asset Management, Inc500$51.1K0.01%013F-HRTimeline
HAZLETT, BURT & WATSON, INC.500$51K0.02%013F-HRTimeline
AdvisorNet Financial, Inc489$49.9K<0.01%+4013F-HRTimeline
Canton Hathaway, LLC489$49.9K0.01%+2413F-HRTimeline
Hanson & Doremus Investment Management475$49K0.01%013F-HRTimeline
LOOMIS SAYLES & CO L Pin group LOOMIS SAYLES & CO L P479$48.9K<0.01%013F-HRTimelineGroup
PlanVest Financial, Inc475$48.6K0.04%13F-HRTimeline
Blue Trust, Inc.475$48.5K<0.01%-45713F-HRTimeline
STANCE CAPITAL LLC473$48.3K0.02%new13F-HRTimeline
Franchise GP Ltd455$46.5K0.02%013F-HRTimeline
Wall Street Financial Group, Inc.452$46.2K0.03%new13F-HRTimeline
BARTLETT & CO. WEALTH MANAGEMENT LLC358$45.9K<0.01%+2813F-HRTimeline
Manchester Capital Management LLC436$44.5K0.01%+25913F-HRTimeline
Signature Equity Partners, LLC420$42.9K0.02%+6113F-HRTimeline
Medallion Wealth Advisors, LLC420$42.9K0.01%013F-HRTimeline
WPG Advisers, LLC417$42.6K0.03%+34113F-HRTimeline
Wealth Preservation Advisors, LLC401$41K0.03%+35613F-HRTimeline
BARRETT & COMPANY, INC.400$40.9K0.01%013F-HRTimeline
True Link Financial Advisors, LLC400$40.9K<0.01%new13F-HR/ATimeline
NCP Inc.400$40.9K0.07%-40413F-HRTimeline
BAYBAN400$40.9K0.04%013F-HRTimeline
Triumph Capital Management396$40.8K0.01%-3213F-HRTimeline
Bank Julius Baer & Co. Ltd, Zurich390$39.8K<0.01%013F-HRTimeline
Kemnay Advisory Services Inc.386$39.4K0.01%new13F-HRTimeline
Piscataqua Savings Bank353$36.1K0.03%013F-HRTimeline
Strategic Wealth Partners, Ltd.350$35.7K<0.01%013F-HRTimeline
Quent Capital, LLC346$35.3K<0.01%+3113F-HRTimeline
Quest 10 Wealth Builders, Inc.344$35.1K0.03%013F-HRTimeline
GODSEY & GIBB, INC325$33.2K<0.01%013F-HRTimeline
CoreCap Advisors, LLC322$33K<0.01%+213F-HRTimeline
North Star Investment Management Corp.309$31.6K<0.01%+513F-HRTimeline
Cranbrook Wealth Management, LLC300$30.6K0.01%013F-HRTimeline
Dynamic Wealth Strategies, LLC300$30.6K0.02%new13F-HRTimeline
PFS Partners, LLC300$30.6K0.01%013F-HRTimeline
Rossby Financial, LCC294$29.7K0.01%+6413F-HRTimeline
SOUTHERN MICHIGAN BANK & TRUST286$29.2K0.01%13F-HRTimeline
Financial Network Wealth Advisors LLC284$29K0.03%-1613F-HRTimeline
LRI Investments, LLC284$29K<0.01%+17813F-HRTimeline
Hilltop National Bank283$28.9K0.01%new13F-HRTimeline
TWIN PEAKS WEALTH ADVISORS, LLC282$28.8K0.01%new13F-HRTimeline
West Branch Capital LLC275$28.1K0.01%013F-HRTimeline
Activest Wealth Management270$27.6K<0.01%+4313F-HRTimeline
IMG Wealth Management, Inc.261$26.7K0.02%+1713F-HRTimeline
HALBERT HARGROVE GLOBAL ADVISORS, LLC250$25.5K<0.01%013F-HRTimeline
Vision Retirement, LLC247$25.2K0.01%-413F-HRTimeline
GW&K Investment Management, LLC244$25K<0.01%+3913F-HRTimeline
NFSG Corp244$24.9K<0.01%+213F-HRTimeline
Private Wealth Asset Management, LLC237$24.2K<0.01%-313F-HRTimeline
IAG Wealth Partners, LLC236$24.1K<0.01%-5913F-HRTimeline
Cornerstone Planning Group LLC182$23.9K<0.01%+9913F-HRTimeline
PALLADIEM, LLC215$23.4K0.02%013F-HRTimeline
Godfrey Financial Associates, Inc.229$23.3K0.02%013F-HRTimeline
Owl Creek Wealth Partners LLC223$22.8K0.01%13F-HRTimeline
Community Bank, N.A.223$22.8K<0.01%new13F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…206$21K<0.01%013F-HRTimelineGroup
CHILTON CAPITAL MANAGEMENT LLC205$20.9K<0.01%013F-HRTimeline
BLUELINE ADVISORS LLC205$20.9K0.02%-613F-HRTimeline
Opal Wealth Advisors, LLC196$20K<0.01%new13F-HRTimeline
Pinnacle Wealth Planning Services, Inc.196$20K<0.01%+2613F-HRTimeline
Bell Investment Advisors, Inc195$19.9K<0.01%+6913F-HRTimeline
RMG Wealth Management LLC150$19.5K<0.01%013F-HRTimeline
LORING WOLCOTT & COOLIDGE FIDUCIARY ADV…182$19.1K<0.01%new13F-HRTimeline
Coston, McIsaac & Partners192$19K<0.01%+113F-HRTimeline
Salomon & Ludwin, LLC180$18.6K<0.01%+17513F-HRTimeline
Financial Connections Group, Inc.177$18K0.01%new13F-HRTimeline
CHESAPEAKE ASSET MANAGEMENT LLC170$17.4K0.01%013F-HRTimeline
Osbon Capital Management LLC161$16.4K0.01%new13F-HRTimeline
MV CAPITAL MANAGEMENT, INC.160$16.3K<0.01%+513F-HRTimeline
MARK SHEPTOFF FINANCIAL PLANNING, LLC123$16.2K0.01%013F-HRTimeline
Atlantic Private Wealth, LLC153$15.6K0.01%+213F-HRTimeline
Westfuller Advisors, LLC147$15.1K0.01%+2913F-HRTimeline
Mosley Wealth Management139$14.2K0.01%new13F-HRTimeline
Park Place Capital Corp135$13.8K<0.01%+1113F-HRTimeline
Tidemark, LLC128$13.1K<0.01%+313F-HRTimeline
MCF Advisors LLC124$12.7K<0.01%+1113F-HRTimeline
FOSTER DYKEMA CABOT & PARTNERS, LLC121$12.5K<0.01%013F-HRTimeline
Moisand Fitzgerald Tamayo, LLC113$11.5K<0.01%013F-HRTimeline
GHP Investment Advisors, Inc.112$11.4K<0.01%013F-HRTimeline
Sachetta, LLC105$10.7K0.01%+713F-HRTimeline
KAYNE ANDERSON RUDNICK INVESTMENT MANAG…104$10.6K<0.01%-113F-HRTimeline
Benson Wealth Management INC102$10.4K0.01%013F-HRTimeline
Chung Wu Investment Group, LLC100$10.2K0.01%013F-HRTimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…98$10.1K<0.01%+5813F-HRTimelineGroup
Covestor Ltd94$10K0.01%-8113F-HRTimeline
EVERMAY WEALTH MANAGEMENT LLC97$9.91K<0.01%new13F-HRTimeline
Red Tortoise LLC94$9.6K<0.01%013F-HRTimeline
Westside Investment Management, Inc.92$9.49K<0.01%013F-HRTimeline
OAKWORTH CAPITAL, INC.91$9.29K<0.01%-5813F-HRTimeline
Innovative Asset Advisors Group, LLC89$9.18K0.01%13F-HRTimeline
Anfield Capital Management, LLCin group Anfield Capital Management, L…88$8.99K<0.01%013F-HRTimelineGroup
CURIO WEALTH, LLC86$8.77K<0.01%013F-HRTimeline
J.Safra Asset Management Corp80$8.17K<0.01%013F-HRTimeline
Basepoint Wealth LLC77$7.87K<0.01%new13F-HRTimeline
High Note Wealth, LLC74$7.56K<0.01%+2413F-HRTimeline
Bruce G. Allen Investments, LLC74$7.56K<0.01%+3313F-HRTimeline
Johnson Financial Group, Inc.in group Johnson Financial Group, Inc.72$7.36K<0.01%013F-HRTimelineGroup
Joseph Group Capital Management71$7.25K<0.01%new13F-HRTimeline
Grove Bank & Trust70$7.15K<0.01%+613F-HRTimeline
Dogwood Wealth Management LLC70$7.15K<0.01%+7013F-HRTimeline
JPL Wealth Management, LLC69$7.05K<0.01%new13F-HR/ATimeline
Park Square Financial Group, LLC69$7.05K0.05%new13F-HRTimeline
Ankerstar Wealth, LLC66$6.8K0.01%new13F-HRTimeline
Geneos Wealth Management Inc.66$6.74K<0.01%013F-HRTimeline
E Fund Management (Hong Kong) Co., Ltd.66$6.74K<0.01%new13F-HRTimeline
Farmers & Merchants Trust Co of Chamber…58$6K<0.01%013F-HR/ATimeline
HORIZON FINANCIAL SERVICES, LLC57$5.82K<0.01%+4713F-HRTimeline