Free Trial

Iron Mountain (IRM) Institutional Ownership

Iron Mountain logo
$88.48 +0.76 (+0.87%)
Closing price 03:59 PM Eastern
Extended Trading
$88.45 -0.03 (-0.03%)
As of 07:30 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)
607
Total
Institutional Inflows
(last 12 months)
$3.99B
Number of
Institutional Sellers
(last 12 months)
519
Total
Institutional Outflows
(last 12 months)
$2.99B
Get IRM Insider Trade Alerts

Want to know when executives and insiders are buying or selling Iron Mountain stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily.

Skip Chart & View Institutional Buying and Selling Data

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
4/28/2025D.A. Davidson & CO.29,216$2.51M0.0%-1.0%0.010%
4/28/2025Rosenberg Matthew Hamilton1,680$145K0.0%+56.3%0.001%
4/28/2025Principal Financial Group Inc.904,184$77.80M0.0%+117.7%0.307%
4/28/2025Mutual Advisors LLC130,443$11.44M0.3%+7.9%0.044%
4/28/2025Teacher Retirement System of Texas57,824$4.98M0.0%+60.4%0.020%
4/28/2025First Horizon Advisors Inc.650$56K0.0%-51.9%0.000%
4/28/2025Private Trust Co. NA2,305$198K0.0%-19.2%0.001%
4/28/2025DAVENPORT & Co LLC9,670$832K0.0%-62.0%0.003%
4/28/2025Summit Trail Advisors LLC3,619$315K0.0%-36.6%0.001%
4/28/2025Sumitomo Mitsui DS Asset Management Company Ltd94,965$8.17M0.1%+2.6%0.032%
4/28/2025Vontobel Holding Ltd.11,687$1.01M0.0%+150.4%0.004%
4/25/2025 Mather Group LLC.2,467$212K0.0%-4.5%0.001%
4/25/2025 Deseret Mutual Benefit Administrators1,501$129K0.1%-21.8%0.001%
4/25/2025 WASHINGTON TRUST Co5,586$481K0.0%-18.9%0.002%
4/25/2025 Canandaigua National Bank & Trust Co.2,700$232K0.0%+25.6%0.001%
4/25/2025 IRON Financial LLC2,483$214K0.1%N/A0.001%
4/25/2025 New York State Teachers Retirement System227,739$19.60M0.0%-9.9%0.077%
4/25/2025 Amalgamated Bank60,085$5.17M0.0%+2.7%0.020%
4/25/2025 Monument Capital Management3,553$306K0.1%-60.0%0.001%
4/25/2025 Augustine Asset Management Inc.5,178$446K0.1%+4.0%0.002%
4/25/2025 Naviter Wealth LLC20,769$1.78M0.2%+3.8%0.007%
4/25/2025 KBC Group NV67,353$5.79M0.0%-83.3%0.023%
4/25/2025 TBH Global Asset Management LLC7,509$646K0.1%-4.3%0.003%
4/25/2025 Colonial River Investments LLC8,795$757K0.4%-37.3%0.003%
4/25/2025 WealthBridge Capital Management LLC8,352$719K0.2%-36.6%0.003%
4/25/2025 Sumitomo Mitsui Trust Group Inc.1,047,116$90.09M0.1%+15.0%0.355%
4/24/2025 Golden State Wealth Management LLC344$30K0.0%N/A0.000%
4/24/2025 Allspring Global Investments Holdings LLC107,640$9.35M0.0%-8.2%0.037%
4/24/2025 TCV Trust & Wealth Management Inc.142,269$12.24M1.1%-2.4%0.048%
4/24/2025 Kessler Investment Group LLC11,082$953K0.5%-6.0%0.004%
4/24/2025 Border to Coast Pensions Partnership Ltd480,000$41.30M0.8%+4.3%0.163%
4/23/2025 Robeco Institutional Asset Management B.V.20,206$1.74M0.0%+5.4%0.007%
4/23/2025 Sequoia Financial Advisors LLC8,873$763K0.0%+7.0%0.003%
4/23/2025 Perigon Wealth Management LLC3,728$321K0.0%-8.7%0.001%
4/23/2025 Golden State Wealth Management LLC344$30K0.0%N/A0.000%
4/23/2025 Bessemer Group Inc.14,439$1.24M0.0%-55.9%0.005%
4/23/2025 Spire Wealth Management15,173$1.31M0.0%-1.3%0.005%
4/23/2025 Golden State Equity Partners5,150$443K0.1%-2.9%0.002%
4/23/2025 E&G Advisors LP3,500$301K0.1%-5.4%0.001%
4/23/2025 Strategic Investment Advisors MI5,860$504K0.1%-43.4%0.002%
Crypto’s crashing…but we’re still profiting (Ad)

Most traders are panicking right now. Bitcoin’s dropping. Altcoins are bleeding. The stock market’s a mess. The news is screaming fear. But while most traders watch their portfolios tank…

my friend Joel and his team at The Crypto Code are doing the opposite.
4/23/2025 Moran Wealth Management LLC205,990$17.72M0.6%-1.4%0.070%
4/23/2025 Vectors Research Management LLC42,076$3.62M1.3%+9.4%0.014%
4/23/2025 Symphony Financial Ltd. Co.4,264$368K0.2%-76.0%0.001%
4/23/2025 Asset Management One Co. Ltd.555,014$47.75M0.2%-1.3%0.189%
4/23/2025 Oppenheimer & Co. Inc.8,974$772K0.0%-30.9%0.003%
4/23/2025 Oppenheimer Asset Management Inc.12,843$1.11M0.0%-10.6%0.004%
4/23/2025 Crewe Advisors LLC505$43K0.0%+10,000.0%0.000%
4/22/2025 Flagship Harbor Advisors LLC8,540$735K0.0%-4.1%0.003%
4/22/2025 Cambridge Investment Research Advisors Inc.142,256$12.24M0.0%-1.3%0.048%
4/22/2025 Genesee Capital Advisors LLC8,379$721K0.4%-37.4%0.003%
4/22/2025 Kentucky Retirement Systems Insurance Trust Fund8,466$728K0.1%N/A0.003%
4/22/2025 Kentucky Retirement Systems19,876$1.71M0.1%-1.4%0.007%
4/22/2025 Heartland Bank & Trust Co9,492$817K0.4%+16.6%0.003%
4/22/2025 Aspire Private Capital LLC10,569$909K0.2%+9.7%0.004%
4/22/2025 Praxis Investment Management Inc.17,280$1.49M0.1%-15.7%0.006%
4/22/2025 PFG Investments LLC23,466$2.02M0.1%-8.3%0.008%
4/22/2025 Putney Financial Group LLC4,731$407K0.3%-3.9%0.002%
4/22/2025 Advisor Resource Council3,419$294K0.0%N/A0.001%
4/21/2025 Spirit of America Management Corp NY43,250$3.72M0.8%+4.6%0.015%
4/21/2025 ORG Partners LLC1,658$153K0.0%-89.4%0.001%
4/21/2025 Kentucky Trust Co20,595$1.77M1.1%-4.2%0.007%
4/21/2025 Retirement Systems of Alabama232,002$19.96M0.1%-0.5%0.079%
4/21/2025 Blue Trust Inc.1,017$88K0.0%+154.9%0.000%
4/21/2025 Bay Colony Advisory Group Inc d b a Bay Colony Advisors7,668$653K0.1%-3.5%0.003%
4/21/2025 Envestnet Portfolio Solutions Inc.9,418$810K0.0%-26.6%0.003%
4/21/2025 Global X Japan Co. Ltd.755$65K0.0%+24.8%0.000%
4/21/2025 State of Alaska Department of Revenue176,632$15.20M0.2%+1.5%0.060%
4/21/2025 CWA Asset Management Group LLC3,647$314K0.0%-73.1%0.001%
4/21/2025 Essex Savings Bank4,495$387K0.1%-3.2%0.002%
4/21/2025 Roman Butler Fullerton & Co.12,861$1.07M0.4%-5.8%0.004%
4/18/2025 Cornerstone Wealth Management LLC4,407$379K0.0%+7.0%0.002%
4/18/2025 Clarius Group LLC3,595$309K0.0%+82.3%0.001%
4/17/2025 Chicago Capital LLC99,214$8.54M0.2%-3.7%0.034%
4/17/2025 QRG Capital Management Inc.135,458$11.66M0.1%-8.5%0.046%
4/17/2025 Highline Wealth Partners LLC17,284$1.49M0.5%-4.6%0.006%
4/17/2025 Sowell Financial Services LLC3,314$285K0.0%N/A0.001%
4/17/2025 Janney Montgomery Scott LLC90,930$7.82M0.0%-1.6%0.031%
4/17/2025 CHB Investment Group LLC29,175$2.51M1.3%+1.2%0.010%
4/17/2025 James Hambro & Partners LLP30,612$2.64M0.1%-5.8%0.010%
4/17/2025 Exchange Traded Concepts LLC1,184$102K0.0%-87.1%0.000%
4/17/2025 Dynamic Advisor Solutions LLC3,075$265K0.0%+25.2%0.001%
4/17/2025 American Institute for Advanced Investment Management LLP10,870$935K0.7%+6.6%0.004%
4/16/2025 Wealth Enhancement Advisory Services LLC49,086$4.22M0.0%-5.4%0.017%
4/16/2025 Stock Yards Bank & Trust Co.23,270$2.00M0.1%-9.8%0.008%
4/16/2025 Salem Investment Counselors Inc.77,265$6.65M0.2%-1.7%0.026%
4/16/2025 Fortitude Family Office LLC4,609$397K0.1%-47.0%0.002%
4/15/2025 Fifth Third Bancorp20,591$1.77M0.0%-1.1%0.007%
4/15/2025 Foresight Capital Management Advisors Inc.88,185$7.59M4.7%+1.0%0.030%
4/15/2025 Redhawk Wealth Advisors Inc.13,374$1.15M0.2%-6.7%0.005%
4/15/2025 CX Institutional1,801$155K0.0%-62.5%0.001%
Crypto’s crashing…but we’re still profiting (Ad)

Most traders are panicking right now. Bitcoin’s dropping. Altcoins are bleeding. The stock market’s a mess. The news is screaming fear. But while most traders watch their portfolios tank…

my friend Joel and his team at The Crypto Code are doing the opposite.
4/15/2025 Assenagon Asset Management S.A.11,538$993K0.0%+3.5%0.004%
4/15/2025 Integrated Advisors Network LLC7,669$660K0.0%-6.1%0.003%
4/15/2025 Handelsbanken Fonder AB170,889$14.70M0.1%-18.6%0.058%
4/15/2025 Nepsis Inc.41,070$3.53M0.9%-15.0%0.014%
4/15/2025 SG Americas Securities LLC60,265$5.19M0.0%+1,116.0%0.021%
4/15/2025 Walker Asset Management LLC2,599$224K0.1%-32.9%0.001%
4/15/2025 Sonora Investment Management Group LLC76,293$6.56M0.5%-2.4%0.026%
4/15/2025 Ameliora Wealth Management Ltd.3,350$288K0.1%+3,250.0%0.001%
4/15/2025 GAMMA Investing LLC3,972$342K0.0%-8.2%0.001%
4/14/2025 Yousif Capital Management LLC48,982$4.21M0.0%-0.7%0.017%
(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, 1,070 institutional investors and hedge funds held shares of Iron Mountain. The most heavily invested institutionals were Vanguard Group Inc. ($4.90B), State Street Corp ($1.98B), Cohen & Steers Inc. ($1.57B), BlackRock Inc. ($1.27B), Geode Capital Management LLC ($832.88M), Wealthfront Advisers LLC ($721.56M), and Northern Trust Corp ($454.76M).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 868 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. ($4.46M), UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC ($2.67M), Wellington Management Group LLP ($2.29M), and Bank Julius Baer & Co. Ltd Zurich ($1.97M).

How much institutional buying is happening at Iron Mountain?

Institutional investors have bought a total of 85,041,970 shares in the last 24 months. This purchase volume represents approximately $6.93B in transactions.

Which Iron Mountain major shareholders have been selling company stock?

Of the 660 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 ($2.74M), Pacer Advisors Inc. ($2.67M), Wellington Management Group LLP ($2.08M), and Epoch Investment Partners Inc. ($1.83M).

How much institutional selling is happening at Iron Mountain?

Institutional investors have sold a total of 62,515,064 shares in the last 24 months. This volume of shares sold represents approximately $5.20B in transactions.



This page (NYSE:IRM) was last updated on 4/28/2025 by MarketBeat.com Staff
From Our Partners