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Disclosery

IRM IRON MTN INC DEL

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REIT (common), issuer CIK 1020569

1,023 managers (1,046 13F filers) reported a position in IRM shares at 2025-06-30, 248,849,175 shares in all. 109 filers opened a position and 62 filers sold out during the quarter.

Managers
1,023
13F filers
1,046
New
109
Added
392
Reduced
356
Sold out
62
Shares held by filers
248,849,175

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, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, 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
Wealthfront Advisers LLC75,981$7.79M0.02%+20013F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding74,712$7.66M-1,273Timeline
Varma Mutual Pension Insurance Co74,538$7.65M0.06%-5,70013F-HRTimeline
Eisler Capital Management Ltd.73,981$7.58M0.26%-33,73913F-HRTimeline
ASR Vermogensbeheer N.V.73,681$7.56M0.1%-16,92013F-HRTimeline
VAN LANSCHOT KEMPEN INVESTMENT MANAGEME…73,433$7.53M0.07%+2,79213F-HRTimeline
Czech National Bank72,119$7.4M0.06%+4,65213F-HRTimeline
Candriam S.C.A.71,723$7.36M0.04%+1,70613F-HRTimeline
NORTHWESTERN MUTUAL INVESTMENT MANAGEME…group of 2 filers holding69,643$7.14M+5,528Timeline
Azimuth Capital Investment Management L…68,662$7.04M0.26%+33,94613F-HRTimeline
BURNEY CO/66,809$6.85M0.23%-85,33913F-HRTimeline
Engineers Gate Manager LP66,745$6.85M0.09%+11,61913F-HRTimeline
Knights of Columbus Asset Advisors LLC66,621$6.83M0.41%-40,16513F-HRTimeline
THOMPSON SIEGEL & WALMSLEY LLC66,200$6.79M0.11%new13F-HRTimeline
Crossmark Global Holdings, Inc.65,793$6.75M0.11%+3,76513F-HRTimeline
KBC Group NVin group KBC Group NV65,688$6.74M0.02%-1,66513F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…65,386$6.71M<0.01%+6,93713F-HRTimelineGroup
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP65,104$6.68M0.01%+7,21513F-HRTimelineGroup
Advisors Asset Management, Inc.63,511$6.51M0.12%+1,19313F-HR/ATimeline
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …63,914$6.5M0.01%+80013F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…61,532$6.31M0.07%new13F-HRTimelineGroup
ProShare Advisors LLC60,870$6.24M0.01%+4,69413F-HRTimeline
Public Sector Pension Investment Board60,672$6.22M0.03%-17,87013F-HRTimeline
USS Investment Management Ltd59,840$6.14M0.04%+13813F-HRTimeline
Polar Asset Management Partners Inc.59,646$6.12M0.15%+3,60013F-HRTimeline
Skandinaviska Enskilda Banken AB (publ)58,995$6.05M0.03%+24913F-HRTimeline
Hennion & Walsh Asset Management, Inc.58,328$5.98M0.24%+86613F-HRTimeline
Pensionfund PDNgroup of 2 filers holding57,800$5.93M0Timeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP57,703$5.92M<0.01%-94,00713F-HRTimelineGroup
AMALGAMATED BANK57,071$5.85M0.05%-3,01413F-HRTimeline
PEAPACK GLADSTONE FINANCIAL CORP56,085$5.75M0.08%-51313F-HRTimeline
WOODSTOCK CORP55,378$5.68M0.52%+1,95013F-HRTimeline
Man Group plcin group Man Group plc55,123$5.65M0.01%-159,65313F-HRTimelineGroup
CW Advisors, LLC54,950$5.64M0.05%+25,39113F-HRTimeline
First National Trust Co54,706$5.61M0.21%-5,49413F-HRTimeline
PRUDENTIAL PLCin group PRUDENTIAL PLC54,301$5.57M0.03%+8,14213F-HRTimelineGroup
American Trust Investment Advisors, LLC54,220$5.56M2.81%-9,29413F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson54,137$5.55M<0.01%+4,96613F-HRTimelineGroup
DNB Asset Management ASin group DNB Asset Management AS54,032$5.54M0.02%+2,30013F-HRTimelineGroup
Ethic Inc.53,664$5.49M0.1%-4,61413F-HRTimeline
NIA IMPACT ADVISORS, LLC52,502$5.39M1.86%-11,57413F-HRTimeline
Werlinich Asset Management, LLC51,812$5.31M2.9%013F-HRTimeline
FJARDE AP-FONDEN /FOURTH SWEDISH NATION…50,784$5.21M0.05%+60013F-HRTimeline
Promethos Capital, LLC50,782$5.21M1.76%013F-HRTimeline
Moors & Cabot, Inc.50,274$5.16M0.24%-26613F-HRTimeline
Lighthouse Investment Partners, LLCin group Lighthouse Investment Partner…50,200$5.15M0.22%+47,70013F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…50,250$5.06M0.01%+1,16413F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC48,874$5.01M0.05%-10813F-HRTimeline
Baird Financial Group, Inc.in group Baird Financial Group, Inc.48,670$4.99M0.01%-13,64013F-HRTimelineGroup
Utah Retirement Systems48,049$4.93M0.05%-16513F-HRTimeline
Federation des caisses Desjardins du Qu…46,646$4.78M0.02%+4,37413F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…46,587$4.78M0.03%+1,26213F-HRTimelineGroup
PREVAIL INNOVATIVE WEALTH ADVISORS, LLC46,555$4.78M1.07%+14,90713F-HRTimeline
Raiffeisen Bank International AGin group Raiffeisen Bank International…46,340$4.76M0.07%-2,83013F-HRTimelineGroup
BRITISH COLUMBIA INVESTMENT MANAGEMENT …46,215$4.74M0.03%-9,90713F-HRTimeline
XPONANCE LLC46,167$4.74M0.04%-34,44713F-HRTimeline
Mariner, LLCin group Mariner, LLC45,655$4.68M0.01%+4,03513F-HRTimelineGroup
RB Capital Management, LLC45,619$4.68M1.06%+52113F-HRTimeline
Allianz Asset Management GmbHin group Allianz SE45,186$4.63M0.01%-10,06413F-HRTimelineGroup
Alberta Investment Management Corp44,900$4.61M0.04%-3,90013F-HR/ATimeline
TEACHER RETIREMENT SYSTEM OF TEXAS44,608$4.58M0.02%-13,21613F-HRTimeline
Police & Firemen's Retirement System of…44,369$4.55M0.04%+2,01013F-HRTimeline
New York Life Investment Management LLCin group New York Life Investment Mana…44,252$4.54M0.04%+73513F-HRTimelineGroup
SPIRIT OF AMERICA MANAGEMENT CORP/NY43,250$4.44M0.93%013F-HRTimeline
WealthTrust Axiom LLC42,649$4.37M1.29%-2,56813F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP42,242$4.33M0.01%-84213F-HRTimelineGroup
BANK OF NOVA SCOTIAin group BANK OF NOVA SCOTIA42,189$4.33M0.01%-1,24013F-HRTimelineGroup
HOLDERNESS INVESTMENTS CO41,828$4.29M0.92%-22513F-HRTimeline
LEE DANNER & BASS INC41,700$4.28M0.33%+5,67513F-HRTimeline
CIBC Asset Management Inc41,047$4.21M0.01%-3,61913F-HRTimeline
Vectors Research Management, LLC40,820$4.19M1.44%-1,25613F-HRTimeline
NEOS Investment Management LLC39,060$4.01M0.05%+12,96913F-HRTimeline
Steward Partners Investment Advisory, L…38,385$3.94M0.03%+35313F-HRTimeline
SHELL ASSET MANAGEMENT CO37,414$3.84M0.13%+7,91713F-HRTimeline
Rafferty Asset Management, LLC37,390$3.84M0.01%+5,36113F-HRTimeline
Trinity Legacy Partners, LLC38,466$3.78M0.92%-17613F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC36,488$3.75M0.01%+31613F-HRTimelineGroup
O'SHAUGHNESSY ASSET MANAGEMENT, LLC36,526$3.75M0.03%+8,15713F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding36,100$3.7M-202,133Timeline
Ranch Capital Advisors Inc.35,247$3.64M1.58%+1,04813F-HRTimeline
Banque Cantonale Vaudoisein group Banque Cantonale Vaudoise35,293$3.62M0.15%+11,47813F-HRTimelineGroup
Cerity Partners LLCin group Cerity Partners LLC35,292$3.62M0.01%+1,22213F-HRTimelineGroup
Cyndeo Wealth Partners, LLC34,227$3.51M0.21%-86213F-HRTimeline
Vestcor Inc34,212$3.51M0.11%-46,37613F-HRTimeline
HOURGLASS CAPITAL, LLC34,060$3.49M0.86%+66013F-HRTimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…33,833$3.47M0.04%-32313F-HRTimelineGroup
Venture Visionary Partners LLC32,989$3.38M0.13%+37113F-HRTimeline
NewEdge Advisors, LLC32,646$3.35M0.02%+5,25013F-HRTimeline
Smithfield Trust Co32,569$3.34M0.16%013F-HRTimeline
One Capital Management, LLC32,563$3.34M0.12%-1,17513F-HRTimeline
HORIZON KINETICS ASSET MANAGEMENT LLC32,455$3.33M0.04%013F-HRTimeline
Nepsis Inc.31,994$3.28M0.91%-9,07613F-HRTimeline
Siemens Fonds Invest GmbH31,945$3.28M0.19%+78113F-HRTimeline
Woodline Partners LP31,839$3.27M0.02%+7,09713F-HRTimeline
COURIER CAPITAL LLC30,912$3.17M0.19%-69713F-HRTimeline
OP Asset Management Ltd30,773$3.16M0.05%+46413F-HR/ATimeline
Erste Asset Management GmbHin group Erste Asset Management GmbH30,816$3.15M0.03%+6,31613F-HRTimelineGroup
Norinchukin Bank, Thein group Norinchukin Bank, The30,596$3.14M0.05%+1,92813F-HRTimelineGroup
Waverly Advisors, LLC30,464$3.12M0.03%-69413F-HRTimeline
Connor, Clark & Lunn Investment Managem…30,350$3.11M0.01%+7,08713F-HRTimeline
DUMONT & BLAKE INVESTMENT ADVISORS LLC30,234$3.1M0.81%-13013F-HRTimeline
Investor's Fiduciary Advisor Network, L…30,028$3.08M1.14%-92113F-HRTimeline
MACKENZIE FINANCIAL CORP29,808$3.06M<0.01%+1,47113F-HRTimeline
B. Metzler seel. Sohn & Co. AGin group B. Metzler seel. Sohn & Co. AG29,635$3.04M0.03%+8,44213F-HRTimelineGroup
D.A. DAVIDSON & CO.29,532$3.03M0.02%+31613F-HRTimeline
TUDOR INVESTMENT CORP ET AL29,141$2.99M0.02%-20,96813F-HRTimeline
Sage Capital Management, LLC29,078$2.98M1.44%+15013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…28,962$2.97M0.01%-1,20913F-HRTimeline
ODDO BHF ASSET MANAGEMENT SAS27,570$2.83M0.11%-22,11613F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Independent Advisor Alliance27,132$2.78M0.08%-54313F-HRTimeline
Elo Mutual Pension Insurance Co26,933$2.76M0.06%-2,99113F-HRTimeline
Kentucky Retirement Systemsgroup of 2 filers holding26,571$2.73M-1,771Timeline
Point72 Asia (Singapore) Pte. Ltd.26,307$2.7M0.48%new13F-HRTimeline
Aurora Investment Counsel25,938$2.66M1.4%+49413F-HRTimeline
FOX RUN MANAGEMENT, L.L.C.25,922$2.66M0.44%new13F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\25,791$2.65M<0.01%+1,50013F-HRTimelineGroup
SHELTON CAPITAL MANAGEMENT25,663$2.63M0.06%-15,00013F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND25,469$2.61M0.05%+20013F-HRTimeline
MOODY NATIONAL BANK TRUST DIVISIONin group MOODY NATIONAL BANK TRUST DIV…25,424$2.61M0.24%+1,47413F-HRTimelineGroup
TFG Advisers LLC25,306$2.6M0.89%+6813F-HRTimeline
CoreFirst Bank & Trust24,834$2.55M1.44%-24013F-HRTimeline
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC24,782$2.54M0.04%-2,50013F-HRTimelineGroup
FIFTH THIRD BANK, NATIONAL ASSOCIATIONgroup of 2 filers holding23,922$2.45M+317Timeline
Sippican Capital Advisors23,712$2.43M1.77%013F-HRTimeline
GeoWealth Management, LLC23,632$2.42M0.09%-12813F-HRTimeline
F/m Investments LLC23,606$2.42M0.09%+1,20013F-HRTimeline
PFG Investments, LLC23,599$2.42M0.14%+13313F-HRTimeline
Verition Fund Management LLC23,455$2.41M0.01%-46,11613F-HRTimeline
Capital Investment Advisors, LLC23,379$2.4M0.04%-82313F-HR/ATimeline
STOCK YARDS BANK & TRUST CO23,270$2.39M0.08%013F-HRTimeline
OPPENHEIMER ASSET MANAGEMENT INC.group of 2 filers holding23,176$2.38M+1,359Timeline
Tredje AP-fonden23,057$2.36M0.02%013F-HRTimeline
American Assets Capital Advisers, LLC22,969$2.36M2.37%-34,22413F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…22,954$2.35M0.02%+35313F-HRTimeline
ING GROEP NV22,944$2.35M0.01%-6,16413F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC22,840$2.34M0.05%+10013F-HRTimelineGroup
Jain Global LLC22,776$2.34M0.04%new13F-HRTimeline
Fiduciary Trust Coin group Fiduciary Trust Co22,574$2.32M0.03%+1,00013F-HRTimelineGroup
Naviter Wealth, LLC22,341$2.31M0.28%+1,57213F-HRTimeline
J.W. COLE ADVISORS, INC.21,703$2.23M0.05%+7,34013F-HRTimeline
GABLES CAPITAL MANAGEMENT INC.21,542$2.21M1.04%-3,20013F-HRTimeline
KCM INVESTMENT ADVISORS LLC21,327$2.19M0.07%+1713F-HRTimeline
Heritage Trust Co21,175$2.17M0.25%-32813F-HRTimeline
Y-Intercept (Hong Kong) Ltd21,031$2.16M0.05%-26,94913F-HRTimeline
CASCADE INVESTMENT GROUP, INC.20,913$2.15M1.5%-16713F-HRTimeline
PARK AVENUE SECURITIES LLCin group PARK AVENUE SECURITIES LLC20,454$2.1M0.02%+7,04913F-HRTimelineGroup
MIZUHO SECURITIES USA LLCin group MIZUHO FINANCIAL GROUP INC20,386$2.09M0.04%13F-HRTimelineGroup
Kentucky Trust Co20,065$2.06M1.18%-53013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…19,882$2.04M0.05%+9,18413F-HRTimelineGroup
Sterling Capital Management LLC19,871$2.04M0.03%+12,36913F-HR/ATimeline
RFG Advisory, LLC19,848$2.04M0.05%+1,66513F-HRTimeline
Merit Financial Group, LLC19,821$2.03M0.02%+4,54313F-HRTimeline
Aster Capital Management (DIFC) Ltd19,478$2M0.45%new13F-HRTimeline
ZACKS INVESTMENT MANAGEMENT19,272$1.98M0.02%+1,58713F-HRTimeline
BENJAMIN EDWARDS INCin group BENJAMIN EDWARDS INC19,049$1.95M0.02%+2913F-HRTimelineGroup
Lido Advisors, LLCin group Lido Advisors, LLC18,476$1.91M0.01%-14,78313F-HRTimelineGroup
Tyler-Stone Wealth Management18,607$1.91M0.31%+18413F-HRTimeline
Madison Asset Management, LLCin group Madison Asset Management, LLC18,531$1.9M0.02%013F-HRTimelineGroup
WESTPAC BANKING CORPin group WESTPAC BANKING CORP18,456$1.89M0.13%+11,75013F-HRTimelineGroup
MASTERINVEST Kapitalanlage GmbH18,437$1.89M0.2%13F-HR/ATimeline
COMMERCE BANKin group COMMERCE BANK18,218$1.87M0.01%+4413F-HRTimelineGroup
FLPUTNAM INVESTMENT MANAGEMENT CO18,076$1.85M0.03%+5,32613F-HRTimeline
Diversify Advisory Services, LLCgroup of 2 filers holding19,809$1.83M+10,684Timeline
PRAXIS INVESTMENT MANAGEMENT INC17,790$1.82M0.12%+51013F-HRTimeline
HARTFORD INVESTMENT MANAGEMENT CO17,740$1.82M0.06%-26113F-HRTimeline
Quantbot Technologies LP17,498$1.79M0.05%-5,58013F-HRTimeline
DoubleLine ETF Adviser LP17,409$1.79M0.57%+22013F-HRTimeline
Bramshill Investments, LLC17,217$1.77M0.18%-2413F-HRTimeline
EP Wealth Advisors, LLC17,146$1.76M0.01%+2,21013F-HRTimeline
Trust Investment Advisors17,081$1.75M1.06%-1,33813F-HRTimeline
INSPIRE TRUST CO, N.A.17,000$1.74M0.36%013F-HRTimeline
IHT Wealth Management, LLC16,951$1.74M0.05%-13813F-HRTimeline
Avanza Fonder AB16,925$1.74M0.05%new13F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP16,873$1.73M<0.01%+5,60413F-HRTimelineGroup
KING LUTHER CAPITAL MANAGEMENT CORP16,646$1.71M0.01%-39513F-HRTimeline
HIGHLINE WEALTH PARTNERS LLC16,611$1.7M0.5%-67313F-HRTimeline
AG2R LA MONDIALE GESTION D'ACTIFS16,338$1.68M0.09%+50213F-HRTimeline
&PARTNERS16,331$1.67M0.01%+6,59213F-HRTimeline
Claro Advisors Inc.16,305$1.67M0.28%-24413F-HRTimeline
Safe Harbor Fiduciary, LLC16,191$1.66M1.56%-3,83513F-HRTimeline
Prana Capital Management, LP15,876$1.63M0.06%+2,86013F-HRTimeline
INCEPTIONR LLC15,785$1.62M0.37%+8,57113F-HRTimeline
HighPoint Advisor Group LLC15,728$1.61M0.09%+5213F-HRTimeline
Creekmur Asset Management LLC15,645$1.6M0.28%+3,72513F-HRTimeline
Louisiana State Employees Retirement Sy…15,600$1.6M0.03%-20013F-HRTimeline
SECURIAN ASSET MANAGEMENT, INC15,361$1.58M0.04%-18413F-HRTimeline
One Charles Private Wealth Services, LLC15,348$1.57M0.44%+3,04013F-HRTimeline
Walleye Trading LLCin group Walleye Capital LLC15,285$1.57M0.04%new13F-HRTimelineGroup
OSSIAM15,273$1.57M0.02%-26313F-HRTimeline
Snowden Capital Advisors LLC14,889$1.54M0.05%-1,81213F-HRTimeline
Gulf International Bank (UK) Ltd14,910$1.53M0.05%-1,64413F-HRTimeline
Robeco Institutional Asset Management B…in group Robeco Institutional Asset Ma…14,725$1.51M<0.01%-5,48113F-HRTimelineGroup
Comprehensive Money Management Services…14,725$1.51M1.15%+44713F-HRTimeline
Royal Fund Management, LLC14,560$1.49M0.16%+1,24813F-HRTimeline
DENALI ADVISORS LLC14,416$1.48M0.15%-17013F-HRTimeline
Metis Global Partners, LLC14,323$1.47M0.04%-1,10213F-HRTimeline
CORRADO ADVISORS, LLC14,277$1.46M0.9%-36713F-HRTimeline
Beacon Financial Advisory LLC14,262$1.46M0.38%-11513F-HRTimeline
Maryland State Retirement & Pension Sys…14,259$1.46M0.03%+65013F-HRTimeline
BI Asset Management Fondsmaeglerselskab…in group BI Asset Management Fondsmaeg…14,219$1.46M0.01%+2,59813F-HRTimelineGroup