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Iron Mountain (IRM) Institutional Ownership

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$99.67 +0.98 (+0.99%)
Closing price 07/18/2025 03:59 PM Eastern
Extended Trading
$99.69 +0.02 (+0.02%)
As of 07/18/2025 07:51 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.

Institutional Ownership Changes (13F Filings) for Iron Mountain (NYSE:IRM)

Current
Institutional Ownership
Percentage
80.13%
Number of
Institutional Buyers
(last 12 months)
650
Total
Institutional Inflows
(last 12 months)
$4.50B
Number of
Institutional Sellers
(last 12 months)
558
Total
Institutional Outflows
(last 12 months)
$3.36B
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IRM Institutional Buying and Selling by Quarter

Iron Mountain Major Shareholders & Ownership History

Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
7/18/2025Vert Asset Management LLC129,482$13.28M4.8%-4.8%0.044%
7/18/2025Robeco Institutional Asset Management B.V.14,725$1.51M0.0%-27.1%0.005%
7/18/2025TPG Advisors LLC1,954$200K0.1%N/A0.001%
7/18/2025Bartlett & CO. Wealth Management LLC330$34K0.0%-25.3%0.000%
7/18/2025Community Bank & Trust Waco Texas2,200$226K0.1%N/A0.001%
7/18/2025PFG Investments LLC23,599$2.42M0.1%+0.6%0.008%
7/18/2025LBP AM SA114,471$11.74M0.2%N/A0.039%
7/18/2025Cooper Financial Group3,155$324K0.0%+3.7%0.001%
7/18/2025PGGM Investments1,565,792$160.60M2.8%-2.0%0.531%
7/18/2025Truist Financial Corp42,242$4.33M0.0%-2.0%0.014%
7/17/2025 Chicago Capital LLC97,636$10.01M0.2%-1.6%0.033%
7/17/2025 Trivium Point Advisory LLC7,048$723K0.1%N/A0.002%
7/17/2025 Greenleaf Trust8,142$835K0.0%+10.5%0.003%
7/17/2025 Capital Investment Advisors LLC23,379$2.40M0.0%-3.4%0.008%
7/17/2025 Raleigh Capital Management Inc.2,681$275K0.1%-23.2%0.001%
7/17/2025 HB Wealth Management LLC10,022$1.03M0.0%+3.1%0.003%
7/17/2025 Janney Montgomery Scott LLC90,708$9.30M0.0%-0.2%0.031%
7/17/2025 Venture Visionary Partners LLC32,989$3.38M0.1%+1.1%0.011%
7/17/2025 GC Wealth Management RIA LLC8,598$882K0.1%+27.7%0.003%
7/17/2025 V Square Quantitative Management LLC8,375$859K0.1%+5.8%0.003%
7/17/2025 Moody Lynn & Lieberson LLC14,210$1.46M0.1%+4.9%0.005%
7/17/2025 Sonora Investment Management Group LLC89,500$9.18M0.7%+17.3%0.030%
7/17/2025 James Hambro & Partners LLP6,502$667K0.0%-78.8%0.002%
7/17/2025 TBH Global Asset Management LLC7,154$734K0.1%-4.7%0.002%
7/16/2025 Signaturefd LLC7,045$723K0.0%+13.2%0.002%
7/16/2025 ORG Partners LLC1,192$119K0.0%-28.1%0.000%
7/16/2025 Highline Wealth Partners LLC16,611$1.70M0.5%-3.9%0.006%
7/16/2025 Augustine Asset Management Inc.4,847$497K0.1%-6.4%0.002%
7/16/2025 Patton Fund Management Inc.2,510$257K0.2%N/A0.001%
7/16/2025 Beaumont Financial Advisors LLC2,830$290K0.0%-12.0%0.001%
7/16/2025 Strategic Investment Solutions Inc. IL1,923$197K0.1%-30.4%0.001%
7/16/2025 Hartford Investment Management Co.17,740$1.82M0.1%-1.4%0.006%
7/16/2025 Perigon Wealth Management LLC3,400$349K0.0%-8.8%0.001%
7/15/2025 Retireful LLC2,602$267K0.2%N/A0.001%
7/15/2025 TD Private Client Wealth LLC6,869$705K0.0%+14.5%0.002%
7/15/2025 Public Employees Retirement System of Ohio92,597$9.50M0.0%+0.6%0.031%
7/15/2025 Kentucky Trust Co20,065$2.06M1.2%-2.6%0.007%
7/15/2025 Financial Management Professionals Inc.5,240$542K0.1%-6.0%0.002%
7/15/2025 Ballentine Partners LLC6,889$707K0.0%+27.9%0.002%
7/15/2025 Fifth Third Bancorp21,090$2.16M0.0%+2.4%0.007%
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7/15/2025 SJS Investment Consulting Inc.2,000$205K0.0%+25.0%0.001%
7/15/2025 Fortitude Family Office LLC3,118$320K0.1%-32.3%0.001%
7/14/2025 E&G Advisors LP3,200$328K0.1%-8.6%0.001%
7/14/2025 Golden State Equity Partners6,346$651K0.1%+23.2%0.002%
7/14/2025 Oliver Luxxe Assets LLC2,000$205K0.0%-96.1%0.001%
7/14/2025 Mechanics Bank Trust Department4,483$460K0.1%+30.8%0.002%
7/14/2025 GAMMA Investing LLC5,476$562K0.0%+37.9%0.002%
7/14/2025 U.S. Capital Wealth Advisors LLC6,862$704K0.0%-93.9%0.002%
7/14/2025 Park Avenue Securities LLC20,454$2.10M0.0%+52.6%0.007%
7/14/2025 Avanza Fonder AB16,925$1.74M0.1%N/A0.006%
7/11/2025 Farther Finance Advisors LLC5,382$552K0.0%+12.8%0.002%
7/11/2025 UMB Bank n.a.2,316$238K0.0%-8.5%0.001%
7/11/2025 Global X Japan Co. Ltd.907$93K0.0%+20.1%0.000%
7/11/2025 SeaCrest Wealth Management LLC3,112$319K0.0%-5.2%0.001%
7/11/2025 Diversified Trust Co3,452$354K0.0%N/A0.001%
7/11/2025 Perpetual Ltd9,820$1.01M0.0%-7.1%0.003%
7/11/2025 TCV Trust & Wealth Management Inc.140,427$14.40M1.3%-1.3%0.048%
7/11/2025 Kingstone Capital Partners Texas LLC98,400$10.09M0.0%N/A0.033%
7/11/2025 IFM Investors Pty Ltd103,029$10.57M0.1%-9.7%0.035%
7/10/2025 Oliver Lagore Vanvalin Investment Group500$51K0.0%N/A0.000%
7/10/2025 Kozak & Associates Inc.1,000$99K0.0%N/A0.000%
7/10/2025 Moody National Bank Trust Division25,424$2.61M0.2%+6.2%0.009%
7/10/2025 Redhawk Wealth Advisors Inc.13,086$1.34M0.2%-2.2%0.004%
7/10/2025 NorthCrest Asset Manangement LLC2,826$285K0.0%N/A0.001%
7/10/2025 Wealth Enhancement Advisory Services LLC50,250$5.06M0.0%+2.4%0.017%
7/10/2025 Swedbank AB315,060$32.32M0.0%+4.0%0.107%
7/10/2025 Secure Asset Management LLC4,641$476K0.1%N/A0.002%
7/10/2025 Sumitomo Mitsui DS Asset Management Company Ltd97,014$9.95M0.1%+2.2%0.033%
7/10/2025 Focus Financial Network Inc.12,685$1.31M0.1%+7.4%0.004%
7/9/2025 Chesley Taft & Associates LLC11,492$1.18M0.1%-1.5%0.004%
7/9/2025 Woodstock Corp55,378$5.68M0.5%+3.6%0.019%
7/9/2025 Czech National Bank72,119$7.40M0.1%+6.9%0.024%
7/9/2025 MassMutual Private Wealth & Trust FSB7,434$763K0.0%+5.0%0.003%
7/8/2025 Atwood & Palmer Inc.9,445$969K0.1%+14.5%0.003%
7/8/2025 Richard P Slaughter Associates Inc2,229$229K0.0%-12.4%0.001%
7/8/2025 E. Ohman J or Asset Management AB12,703$1.30M0.0%-6.6%0.004%
7/8/2025 Parallel Advisors LLC3,397$348K0.0%-9.5%0.001%
7/7/2025 Wesbanco Bank Inc.2,029$208K0.0%N/A0.001%
7/7/2025 Somerset Trust Co5,721$587K0.2%+4.0%0.002%
7/7/2025 RB Capital Management LLC45,619$4.68M1.1%+1.2%0.015%
7/1/2025 Harbor Investment Advisory LLC420$43K0.0%-32.9%0.000%
6/30/2025Pensionfund Sabic19,300$1.66M0.5%-13.5%0.007%
6/30/2025 Pensionfund DSM Netherlands38,500$3.31M2.2%-9.4%0.013%
6/26/2025AG2R LA Mondiale Gestion D Actifs15,836$1.36M0.1%N/A0.005%
6/23/2025 Swedbank AB303,030$26.07M0.0%+4.9%0.103%
6/18/2025Voya Investment Management LLC134,366$11.56M0.0%-2.2%0.046%
6/10/2025BROOKFIELD Corp ON 14,022$1.21M0.0%+26.1%0.005%
5/28/2025Strs Ohio190,800$16.42M0.1%N/A0.065%
5/28/2025Ellsworth Advisors LLC25,194$2.17M0.6%+0.9%0.009%
5/27/2025Advisors Capital Management LLC4,612$397K0.0%+13.6%0.002%
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5/21/2025Geneos Wealth Management Inc.978$84K0.0%-14.4%0.000%
5/21/2025Schmidt P J Investment Management Inc.2,360$203K0.0%-17.5%0.001%
5/21/2025 IFM Investors Pty Ltd114,068$9.81M0.1%-7.1%0.039%
5/20/2025Belpointe Asset Management LLC2,476$213K0.0%-65.8%0.001%
5/20/2025Intech Investment Management LLC448,761$38.61M0.4%+6.8%0.152%
5/20/2025Focus Partners Wealth149,537$12.90M0.0%+22.4%0.051%
5/20/2025Integrity Alliance LLC.6,559$564K0.0%N/A0.002%
5/20/2025Aspen Investment Management Inc4,531$390K0.2%+9.7%0.002%
5/19/2025Smith Asset Management Co. LLC6,655$573K0.5%N/A0.002%
5/19/2025UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC422,423$36.35M0.0%-0.9%0.143%
(Data available from 1/1/2016 forward)

IRM Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of IRM shares?

During the previous two years, 1,097 institutional investors and hedge funds held shares of Iron Mountain. The most heavily invested institutionals were Vanguard Group Inc. ($4.03B), State Street Corp ($1.98B), Cohen & Steers Inc. ($1.57B), BlackRock Inc. ($1.27B), Geode Capital Management LLC ($832.88M), Capital World Investors ($401.25M), and Northern Trust Corp ($367.16M).Learn more on Iron Mountain's institutional investors.

What percentage of Iron Mountain's stock is owned by institutional investors?

80.13% of Iron Mountain's stock is owned by institutional investors. Learn more on IRM's institutional investor holdings.

Which institutional investors have been buying Iron Mountain's stock?

Of the 907 institutional investors that purchased Iron Mountain's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Cohen & Steers Inc. ($19.83M), Wealthfront Advisers LLC ($6.80M), Norges Bank ($6.58M), Daiwa Securities Group Inc. ($4.45M), UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC ($2.67M), Wellington Management Group LLP ($2.29M), and Nuveen LLC ($2.23M).

How much institutional buying is happening at Iron Mountain?

Institutional investors have bought a total of 44,601,837 shares in the last 24 months. This purchase volume represents approximately $4.50B in transactions.

Which of Iron Mountain's major shareholders have been selling company stock?

Of the 557 institutional investors that sold Iron Mountain's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Cohen & Steers Inc. ($2.82M), UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC ($2.75M), FMR LLC ($2.68M), Wellington Management Group LLP ($2.31M), TD Asset Management Inc ($1.77M), Daiwa Securities Group Inc. ($1.62M), and Canada Pension Plan Investment Board ($1.13M).

How much institutional selling is happening at Iron Mountain?

Institutional investors have sold a total of 32,132,346 shares in the last 24 months. This volume of shares sold represents approximately $3.36B in transactions.



This page (NYSE:IRM) was last updated on 7/19/2025 by MarketBeat.com Staff
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