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Iron Mountain (IRM) Institutional Ownership

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$96.14 -4.40 (-4.38%)
Closing price 05/21/2025 03:59 PM Eastern
Extended Trading
$97.18 +1.04 (+1.08%)
As of 05/21/2025 07:01 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)
642
Total
Institutional Inflows
(last 12 months)
$4.48B
Number of
Institutional Sellers
(last 12 months)
559
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
5/21/2025 Geneos 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%
5/20/2025 Belpointe Asset Management LLC2,476$213K0.0%-65.8%0.001%
5/20/2025 Intech Investment Management LLC448,761$38.61M0.4%+6.8%0.152%
5/20/2025 Focus Partners Wealth149,537$12.90M0.0%+22.4%0.051%
5/20/2025 Integrity Alliance LLC.6,559$564K0.0%N/A0.002%
5/20/2025 Aspen Investment Management Inc4,531$390K0.2%+9.7%0.002%
5/19/2025 Smith Asset Management Co. LLC6,655$573K0.5%N/A0.002%
5/19/2025 UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC422,423$36.35M0.0%-0.9%0.143%
5/16/2025 Woodline Partners LP24,742$2.13M0.0%+41.0%0.008%
5/16/2025 Empowered Funds LLC5,728$493K0.0%+10.3%0.002%
5/16/2025 MBB Public Markets I LLC3,604$310K0.0%N/A0.001%
5/16/2025 United Services Automobile Association7,308$622K0.0%N/A0.002%
5/16/2025 Meiji Yasuda Asset Management Co Ltd.4,454$383K0.0%-14.9%0.002%
5/16/2025 Arete Wealth Advisors LLC5,655$487K0.0%-23.5%0.002%
5/16/2025 Aristeia Capital L.L.C.3,640$313K0.0%+24.4%0.001%
5/16/2025 Goldman Sachs Group Inc.1,974,922$169.92M0.0%+86.1%0.669%
5/16/2025 Adelante Capital Management LLC390,346$33.59M2.4%-12.5%0.132%
5/16/2025 UniSuper Management Pty Ltd113,493$9.77M0.1%+3.7%0.038%
5/16/2025 Polar Asset Management Partners Inc.56,046$4.82M0.1%-60.4%0.019%
5/16/2025 Nissay Asset Management Corp Japan ADV78,949$6.79M0.0%+1.6%0.027%
5/16/2025 NewEdge Advisors LLC27,396$2.36M0.0%-8.6%0.009%
5/16/2025 Nippon Life Global Investors Americas Inc.58,610$5.08M0.2%-49.9%0.020%
5/16/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.29,904$2.57M0.0%+4.5%0.010%
5/16/2025 Integrated Wealth Concepts LLC7,745$666K0.0%-20.8%0.003%
5/16/2025 Hancock Whitney Corp5,089$438K0.0%-56.7%0.002%
5/16/2025 DoubleLine ETF Adviser LP17,189$1.48M0.5%-18.4%0.006%
5/16/2025 Alliancebernstein L.P.599,714$51.60M0.0%+7.9%0.203%
5/16/2025 AQR Capital Management LLC65,165$5.53M0.0%-68.0%0.022%
5/16/2025 Atalanta Sosnoff Capital LLC5,741$494K0.0%+15.1%0.002%
5/16/2025 Advisors Asset Management Inc.62,318$5.36M0.1%-5.2%0.021%
5/16/2025 Alyeska Investment Group L.P.176,584$15.19M0.1%N/A0.060%
5/16/2025 American Trust Investment Advisors LLC63,514$5.47M2.3%-6.4%0.022%
5/16/2025 Amundi1,099,934$91.41M0.0%-23.6%0.373%
5/16/2025 Adage Capital Partners GP L.L.C.318,052$27.37M0.1%+178.6%0.108%
5/15/2025 Federation des caisses Desjardins du Quebec42,272$3.64M0.0%+22.8%0.014%
5/15/2025 EP Wealth Advisors LLC14,936$1.29M0.0%-14.2%0.005%
5/15/2025 Contour Asset Management LLC1,427,250$122.80M4.9%N/A0.484%
5/15/2025 Flputnam Investment Management Co.12,750$1.10M0.0%+1.6%0.004%
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5/15/2025 Royal Bank of Canada497,929$42.84M0.0%+11.1%0.169%
5/15/2025 Retirement Planning Co of New England Inc.11,432$984K0.4%+1.6%0.004%
5/15/2025 MAI Capital Management8,998$774K0.0%-30.1%0.003%
5/15/2025 Quarry LP2,399$206K0.0%+174.2%0.001%
5/15/2025 Nomura Holdings Inc.74,514$6.41M0.0%+70.4%0.025%
5/15/2025 Baird Financial Group Inc.62,310$5.36M0.0%-4.9%0.021%
5/15/2025 Vident Advisory LLC9,201$792K0.0%+113.3%0.003%
5/15/2025 Evergreen Capital Management LLC3,317$285K0.0%+9.3%0.001%
5/15/2025 The Manufacturers Life Insurance Company 195,137$16.79M0.0%+3.6%0.066%
5/15/2025 Canada Pension Plan Investment Board109,343$9.41M0.0%-49.7%0.037%
5/15/2025 Safe Harbor Fiduciary LLC20,026$1.72M1.8%-0.6%0.007%
5/15/2025 Lansforsakringar Fondforvaltning AB publ 96,475$8.30M0.1%-0.7%0.033%
5/15/2025 OMERS ADMINISTRATION Corp10,475$901K0.0%-14.1%0.004%
5/15/2025 BNP Paribas Financial Markets578,174$49.75M0.0%+16.3%0.196%
5/15/2025 Cascade Investment Group Inc.21,080$1.81M1.4%-2.2%0.007%
5/15/2025 Eisler Capital Management Ltd.107,720$9.26M0.1%N/A0.037%
5/14/2025 Truvestments Capital LLC14,311$1.23M0.3%-0.7%0.005%
5/14/2025 B. Metzler seel. Sohn & Co. AG21,193$1.82M0.0%-14.2%0.007%
5/14/2025 RB Capital Management LLC45,098$3.88M0.9%-2.7%0.015%
5/14/2025 CreativeOne Wealth LLC3,119$268K0.0%-68.5%0.001%
5/14/2025 Ieq Capital LLC18,264$1.57M0.0%+7.7%0.006%
5/14/2025 Samalin Investment Counsel LLC2,526$217K0.1%N/A0.001%
5/14/2025 Rafferty Asset Management LLC32,029$2.76M0.0%-17.0%0.011%
5/14/2025 Epoch Investment Partners Inc.714,025$61.44M0.3%-4.5%0.242%
5/14/2025 FORA Capital LLC36,263$3.12M0.3%-25.7%0.012%
5/14/2025 WealthTrust Axiom LLC45,217$3.89M1.2%-2.3%0.015%
5/14/2025 Corebridge Financial Inc.73,436$6.32M0.0%-3.7%0.025%
5/14/2025 Freedom Investment Management Inc.4,834$416K0.0%+4.2%0.002%
5/14/2025 MetLife Investment Management LLC91,868$7.90M0.0%-1.8%0.031%
5/14/2025 Jump Financial LLC301,213$25.92M0.4%+725.6%0.102%
5/14/2025 SVB Wealth LLC9,880$850K0.0%-9.2%0.003%
5/14/2025 Cbre Investment Management Listed Real Assets LLC772,190$66.44M1.0%+42.7%0.262%
5/14/2025 APG Asset Management N.V.158,200$12.60M0.0%-0.6%0.054%
5/14/2025 Smartleaf Asset Management LLC1,670$142K0.0%-6.9%0.001%
5/14/2025 Aew Capital Management L P669,267$57.58M2.8%-1.4%0.227%
5/14/2025 Northwestern Mutual Wealth Management Co.54,772$4.71M0.0%+3.2%0.019%
5/14/2025 Trinity Legacy Partners LLC38,642$3.33M0.8%-13.1%0.013%
5/14/2025 APG Asset Management US Inc.582,174$50.59M0.4%+13.2%0.197%
5/14/2025 AlphaQuest LLC1,095$94K0.0%N/A0.000%
5/14/2025 Kestra Advisory Services LLC88,000$7.57M0.0%+4.5%0.030%
5/14/2025 Ameriprise Financial Inc.1,554,684$132.39M0.0%-2.2%0.527%
5/14/2025 Norinchukin Bank The28,668$2.47M0.0%+9.9%0.010%
5/14/2025 CW Advisors LLC29,559$2.55M0.0%-10.2%0.010%
5/14/2025 Price T Rowe Associates Inc. MD824,103$70.91M0.0%-6.1%0.279%
5/14/2025 Candriam S.C.A.70,017$6.02M0.0%-9.2%0.024%
5/14/2025 GM Advisory Group LLC7,302$628K0.0%-6.3%0.002%
5/14/2025 Erste Asset Management GmbH24,500$2.09M0.0%-71.7%0.008%
5/14/2025 EntryPoint Capital LLC5,311$457K0.2%N/A0.002%
5/14/2025 Venture Visionary Partners LLC32,618$2.81M0.1%-61.6%0.011%
5/14/2025 Bowen Hanes & Co. Inc.75,000$6.45M0.2%N/A0.025%
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5/14/2025 Credit Agricole S A200,767$17.27M0.1%-12.4%0.068%
5/14/2025 Banco Bilbao Vizcaya Argentaria S.A.7,475$643K0.0%+4.0%0.003%
5/14/2025 Van Lanschot Kempen Investment Management N.V.70,641$6.08M0.1%N/A0.024%
5/14/2025 BI Asset Management Fondsmaeglerselskab A S11,621$1M0.0%-1.2%0.004%
5/14/2025 Hsbc Holdings PLC819,862$70.48M0.0%+10.3%0.278%
5/14/2025 Quantbot Technologies LP23,078$1.99M0.1%-49.7%0.008%
5/14/2025 Wellington Management Group LLP1,067,364$91.84M0.0%-31.0%0.362%
5/14/2025 Korea Investment CORP335,070$28.83M0.1%+68.5%0.114%
5/13/2025 Aptus Capital Advisors LLC7,747$667K0.0%+44.7%0.003%
5/13/2025 Northern Trust Corp4,267,324$367.16M0.1%-1.4%1.446%
(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, 1,095 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 IRM's institutional investors.

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

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

Which institutional investors have been buying Iron Mountain stock?

Of the 892 institutional investors that purchased Iron Mountain 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 91,988,364 shares in the last 24 months. This purchase volume represents approximately $7.59B in transactions.

Which Iron Mountain major shareholders have been selling company stock?

Of the 691 institutional investors that sold Iron Mountain stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Capital World Investors ($20.14M), FMR LLC ($3.03M), Cohen & Steers Inc. ($2.82M), UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC ($2.75M), Wellington Management Group LLP ($2.40M), Epoch Investment Partners Inc. ($1.86M), and TD Asset Management Inc ($1.84M).

How much institutional selling is happening at Iron Mountain?

Institutional investors have sold a total of 64,097,320 shares in the last 24 months. This volume of shares sold represents approximately $5.47B in transactions.



This page (NYSE:IRM) was last updated on 5/22/2025 by MarketBeat.com Staff
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