Free Trial
→ Trump’s Exec Order #14154 could be a “Millionaire-Maker” (From Paradigm Press) (Ad) Free WTM Stock Alerts

White Mountains Insurance Group (WTM) Institutional Ownership

White Mountains Insurance Group logo
$1,791.54 -4.18 (-0.23%)
Closing price 07/1/2025 03:59 PM Eastern
Extended Trading
$1,791.08 -0.46 (-0.03%)
As of 07/1/2025 04:46 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.
Compare

Institutional Ownership Changes (13F Filings) for White Mountains Insurance Group (NYSE:WTM)

Current
Institutional Ownership
Percentage
88.65%
Number of
Institutional Buyers
(last 12 months)
183
Total
Institutional Inflows
(last 12 months)
$959.47M
Number of
Institutional Sellers
(last 12 months)
122
Total
Institutional Outflows
(last 12 months)
$280.81M
Get WTM Insider Trade Alerts

Want to know when executives and insiders are buying or selling White Mountains Insurance Group 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

WTM Institutional Buying and Selling by Quarter

White Mountains Insurance Group Major Shareholders & Ownership History

Export to Excel
Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
6/27/2025Goldman Sachs Group Inc.4,259$8.20M0.0%+54.6%0.166%
6/18/2025Voya Investment Management LLC524$1.01M0.0%+5.9%0.020%
5/29/2025Rhumbline Advisers4,472$8.61M0.0%-1.7%0.174%
5/28/2025Strs Ohio1,145$2.21M0.0%N/A0.044%
5/21/2025Geneos Wealth Management Inc.17$33K0.0%+325.0%0.001%
5/20/2025Focus Partners Wealth1,347$2.59M0.0%-3.0%0.052%
5/19/2025Jane Street Group LLC578$1.11M0.0%+101.4%0.022%
5/19/2025UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC11,287$21.74M0.0%+11.7%0.439%
5/16/2025Goldman Sachs Group Inc.4,259$8.20M0.0%+54.6%0.165%
5/16/2025Select Equity Group L.P.27,999$53.92M0.2%+1.4%1.088%
5/16/2025NewEdge Advisors LLC170$327K0.0%+17.2%0.007%
5/16/2025Integrated Wealth Concepts LLC163$314K0.0%+19.9%0.006%
5/16/2025Cove Street Capital LLC491$946K1.5%-54.0%0.019%
5/16/2025AQR Capital Management LLC8,492$16.22M0.0%-16.3%0.330%
5/15/2025Royal Bank of Canada1,282$2.47M0.0%-6.3%0.050%
5/15/2025Magnetar Financial LLC118$227K0.0%N/A0.005%
5/15/2025WPG Advisers LLC39$75K0.1%N/A0.002%
5/14/2025Hotchkis & Wiley Capital Management LLC6,893$13.28M0.0%-6.4%0.268%
5/14/2025Northwestern Mutual Wealth Management Co.21$40K0.0%+90.9%0.001%
5/14/2025Douglass Winthrop Advisors LLC191$368K0.0%N/A0.007%
5/14/2025Fiduciary Management Inc. WI71,795$138.26M1.3%+46.2%2.789%
5/14/2025Martingale Asset Management L P607$1.17M0.0%+3.4%0.024%
5/14/2025T. Rowe Price Investment Management Inc.62,466$120.30M0.1%+8.2%2.427%
5/14/2025Fuller & Thaler Asset Management Inc.110,092$212.02M0.8%-3.5%4.277%
5/14/2025Wellington Management Group LLP25,438$48.99M0.0%-49.0%0.988%
5/13/2025Northern Trust Corp18,222$35.09M0.0%+0.8%0.708%
5/13/2025Raymond James Financial Inc.31,724$61.09M0.0%-2.3%1.232%
5/13/2025Cresset Asset Management LLC304$585K0.0%-5.0%0.012%
5/13/2025American Century Companies Inc.7,036$13.55M0.0%+30.9%0.273%
5/13/2025Ethic Inc.591$1.12M0.0%+9.6%0.023%
5/13/2025Brandywine Global Investment Management LLC3,626$6.98M0.1%-7.5%0.141%
5/13/2025Dimensional Fund Advisors LP156,617$301.61M0.1%-0.5%6.085%
5/13/2025Lord Abbett & CO. LLC32,851$63.27M0.2%-0.8%1.276%
5/13/2025Boston Partners85,236$163.26M0.2%-0.2%3.311%
5/13/2025Russell Investments Group Ltd.116$223K0.0%-15.3%0.005%
5/13/2025HighTower Advisors LLC1,466$2.82M0.0%-6.2%0.057%
5/12/2025Nuveen LLC7,770$14.96M0.0%N/A0.302%
5/12/2025King Luther Capital Management Corp610$1.18M0.0%-6.2%0.024%
5/12/2025Invesco Ltd.4,020$7.74M0.0%-7.6%0.156%
5/12/2025Townsquare Capital LLC357$688K0.0%+3.5%0.014%
Fine. Don’t believe me. (Ad)

They called me an alarmist... When in 2010 I said America’s debt was out of control. When I warned it would unleash a wave of civil unrest, society collapse, inflation, and currency debasement, they called me crazy. When I said the dollar’s reign was coming to an end… that interest payments would one day overwhelm our budget… they said: that’ll never happen here. And yet – here we are. America’s national debt just blew past $37 trillion.

Go here and let me explain everything.
5/12/2025Swiss National Bank4,946$9.53M0.0%-2.0%0.192%
5/9/2025Deutsche Bank AG322$620K0.0%-4.5%0.013%
5/9/2025Chicago Partners Investment Group LLC491$877K0.0%+8.1%0.019%
5/9/2025Charles Schwab Investment Management Inc.24,706$47.58M0.0%-2.6%0.960%
5/9/2025Vanguard Group Inc.250,116$481.68M0.0%-0.6%9.717%
5/9/2025Atria Wealth Solutions Inc.211$406K0.0%N/A0.008%
5/9/2025Connable Office Inc.150$289K0.0%-17.1%0.006%
5/9/2025Phocas Financial Corp.5,391$10.38M1.6%-5.5%0.209%
5/9/2025Bank of Nova Scotia155$299K0.0%-14.8%0.006%
5/9/2025PNC Financial Services Group Inc.439$845K0.0%-17.9%0.017%
5/8/2025US Bancorp DE151$291K0.0%-8.5%0.006%
5/7/2025LPL Financial LLC1,870$3.60M0.0%+6.1%0.073%
5/7/2025TD Asset Management Inc1,592$3.07M0.0%+15.4%0.062%
5/7/2025Equitable Trust Co.553$1.07M0.1%+15.0%0.021%
5/6/2025Cetera Investment Advisers252$485K0.0%+3.7%0.010%
5/6/2025Royce & Associates LP11,588$22.32M0.2%-5.8%0.450%
5/6/2025Venturi Wealth Management LLC249$480K0.0%+11.2%0.010%
5/6/2025KLP Kapitalforvaltning AS505$973K0.0%-16.5%0.020%
5/6/2025Universal Beteiligungs und Servicegesellschaft mbH160$308K0.0%-25.9%0.006%
5/5/2025GW&K Investment Management LLC8,467$16.31M0.2%+0.7%0.329%
5/5/2025Lindbrook Capital LLC108$208K0.0%-11.5%0.004%
5/5/2025Teachers Retirement System of The State of Kentucky1,208$2.33M0.0%+11.9%0.047%
5/2/2025Forum Financial Management LP1,663$3.20M0.1%+21.0%0.065%
5/2/2025Cooke & Bieler LP54,652$105.25M1.1%+60.4%2.123%
5/2/2025Victory Capital Management Inc.16,091$30.99M0.0%+39.3%0.625%
5/2/2025Midwest Professional Planners LTD.592$1.14M0.4%+1.9%0.023%
5/2/2025Edgestream Partners L.P.3,540$6.82M0.2%N/A0.138%
5/1/2025LRI Investments LLC90$173K0.0%-18.9%0.003%
5/1/2025CWM LLC23$44K0.0%-30.3%0.001%
5/1/2025Speece Thorson Capital Group Inc.11,159$21.49M4.4%-1.6%0.434%
5/1/2025Arizona State Retirement System737$1.42M0.0%-1.2%0.029%
4/30/2025Cerity Partners LLC1,896$3.65M0.0%+2.6%0.074%
4/30/2025Mraz Amerine & Associates Inc.21,028$40.01M6.9%-0.2%0.817%
4/30/2025Nisa Investment Advisors LLC730$1.41M0.0%-33.6%0.028%
4/30/2025Brown Advisory Inc.22,076$42.51M0.1%-1.5%0.858%
4/30/2025Crossmark Global Holdings Inc.121$233K0.0%N/A0.005%
4/29/2025Envestnet Asset Management Inc.17,269$33.26M0.0%+5.2%0.671%
4/29/2025Lee Danner & Bass Inc.3,148$6.06M0.5%-4.0%0.122%
4/29/2025Bank of New York Mellon Corp12,570$24.21M0.0%-0.2%0.488%
4/28/2025Teacher Retirement System of Texas375$722K0.0%-18.7%0.015%
4/28/2025First Horizon Advisors Inc.49$94K0.0%+36.1%0.002%
4/28/2025Private Trust Co. NA15$29K0.0%+87.5%0.001%
4/28/2025WCM Investment Management LLC13,245$25.20M0.1%+13.7%0.515%
4/28/2025Klingenstein Fields & Co. LP380$732K0.0%-2.8%0.015%
4/28/2025DAVENPORT & Co LLC2,173$4.19M0.0%-1.1%0.084%
4/28/2025Summit Trail Advisors LLC486$936K0.0%+66.4%0.019%
4/25/2025KBC Group NV125$241K0.0%-93.9%0.005%
4/24/2025Allspring Global Investments Holdings LLC24,857$47.28M0.1%+7.0%0.978%
4/24/2025Perpetual Ltd7,727$14.88M0.2%-19.7%0.304%
4/23/2025Sequoia Financial Advisors LLC826$1.59M0.0%-9.9%0.033%
A new rule goes live in July — and the banks are quietly cashing in (Ad)

A major change is quietly going into effect this July — and Wall Street is already positioning for it. Big Banks have found a way to use a new asset as if it were cash. Not stocks. Not bonds. Not even the U.S. dollar. They now trust this asset more than the traditional financial system itself.

To help you get started, we're giving away a FREE Wealth Protection Guide that shows you exactly how
4/23/2025Robeco Institutional Asset Management B.V.19,154$36.89M0.1%-1.4%0.754%
4/23/2025Bessemer Group Inc.94$181K0.0%+10.6%0.004%
4/23/2025Oppenheimer Asset Management Inc.1,335$2.57M0.0%-13.7%0.053%
4/21/2025Riverwater Partners LLC142$273K0.1%N/A0.006%
4/21/2025Blue Trust Inc.85$164K0.0%+39.3%0.003%
4/21/2025Envestnet Portfolio Solutions Inc.287$553K0.0%-39.6%0.011%
4/17/2025Sagespring Wealth Partners LLC137$264K0.0%+20.2%0.005%
4/17/2025Janney Montgomery Scott LLC413$795K0.0%+15.7%0.016%
4/17/2025Hengehold Capital Management LLC434$836K0.1%+31.9%0.017%
4/16/2025Wealth Enhancement Advisory Services LLC173$333K0.0%+6.8%0.007%
(Data available from 1/1/2016 forward)

WTM Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of WTM shares?

During the previous two years, 309 institutional investors and hedge funds held shares of White Mountains Insurance Group. The most heavily invested institutionals were Vanguard Group Inc. ($481.68M), Morgan Stanley ($303.51M), Dimensional Fund Advisors LP ($301.61M), Global Assets Advisory LLC ($241.38M), River Road Asset Management LLC ($218.65M), Fuller & Thaler Asset Management Inc. ($212.02M), and Boston Partners ($163.26M).Learn more on White Mountains Insurance Group's institutional investors.

What percentage of White Mountains Insurance Group's stock is owned by institutional investors?

88.65% of White Mountains Insurance Group's stock is owned by institutional investors. Learn more on WTM's institutional investor holdings.

Which institutional investors have been buying White Mountains Insurance Group's stock?

Of the 248 institutional investors that purchased White Mountains Insurance Group's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: GAMMA Investing LLC ($146.38K), Global Assets Advisory LLC ($134.53K), Norges Bank ($58.91K), Cooke & Bieler LP ($54.65K), Proficio Capital Partners LLC ($46.69K), Raymond James Financial Inc. ($32.47K), and Allspring Global Investments Holdings LLC ($27.25K).

How much institutional buying is happening at White Mountains Insurance Group?

Institutional investors have bought a total of 501,966 shares in the last 24 months. This purchase volume represents approximately $959.47M in transactions.

Which of White Mountains Insurance Group's major shareholders have been selling company stock?

Of the 122 institutional investors that sold White Mountains Insurance Group's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Wellington Management Group LLP ($44.35K), Fuller & Thaler Asset Management Inc. ($12.19K), Cove Street Capital LLC ($9.20K), Victory Capital Management Inc. ($7.90K), Select Equity Group L.P. ($7.06K), American Century Companies Inc. ($6.20K), and River Road Asset Management LLC ($5.79K).

How much institutional selling is happening at White Mountains Insurance Group?

Institutional investors have sold a total of 149,367 shares in the last 24 months. This volume of shares sold represents approximately $280.81M in transactions.


Related Companies

This page (NYSE:WTM) was last updated on 7/2/2025 by MarketBeat.com Staff
From Our Partners
White House to reset Social Security?
Elon Musk's parting DOGE gift looks set to shock America... A single announcement by July 22nd could soon b...
Altimetry | Sponsored
Forget Nvidia, This “Ghost Town” Company Holds the Key to the AI Boom
Cold War Discovery Could Unlock $100 Trillion in Wealth Jeff recently traveled to an American ghost town to...
Brownstone Research | Sponsored
The Trump Dump is starting; Get out of stocks now?
The first 365 days of the Trump presidency… Will be the best time to get rich in American history.
Paradigm Press | Sponsored
Israel-Iran WAR Could Destroy Trump's Presidency
The missiles are already flying. Israel and Iran are now in direct military conflict — and this couldn't ha...
American Alternative | Sponsored
Crypto Is Pumping Again – Now Comes the Real Opportunity
This same signal has appeared twice before in the past 8 years — both times, it kicked off major moves in cryp...
Crypto Swap Profits | Sponsored
The #1 AI Energy Stock
Nearly $600 billion is projected to be spent on AI data centers this year. That's because the ones being bu...
Weiss Ratings | Sponsored
Trump set to Boost Social Security Checks by 400%?
If you collect—or plan to collect—Social Security, you need to see this. A new initiative tied to President...
InvestorPlace | Sponsored
A grave, grave error.
Famed financial analyst, Porter Stansberry, calls this technology “The Final Frontier” because it holds the ke...
Porter & Company | Sponsored