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Livermore
Livermore
ZHEN

White Mountains Insurance Group Ltd

WTM
Exchange
NYSE
Industry
Fire, Marine & Casualty Insurance
SEC CIK
0000776867

No open-market purchases or sales by White Mountains Insurance Group Ltd insiders were filed in the last 90 days; 356 institutions reported holding it in 13F filings for Q2 2026, worth $4.57B in total; Southeastern Asset Management (Longleaf) is the only superinvestor holding it.

Q2 2024 vs. Q1 2024

How the institutions holding White Mountains Insurance Group Ltd changed between Q1 2024 and Q2 2024.

All holders in Q2 2024All holders in Q1 2024

13F holders of WTM: Q1 2024 compared with Q2 2024
MeasureQ1 2024Of which not filed for Q2 2024Q2 2024Change
Holders3032306+5
Shares2.40M6.38K2.28M−110.7K (−4.6%)
Value$4.06B$11.4M$4.14B+$95.9M (+2.4%)

2 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (31)

Institutions that held White Mountains Insurance Group Ltd at the end of Q2 2024 but not at the end of Q1 2024.

Institutions new to WTM in Q2 2024
InstitutionSharesValue% of portfolio
Lee Danner & Bass Inc3,283$5.97M0.46%
Horizon Kinetics Asset Management LLC1,365$2.48M0.04%
Teachers Retirement System of the State of Kentucky944$1.72M0.02%
Bridgewater Associates, LP756$1.37M0.01%
Sanctuary Advisors, LLC744$1.31M0.01%
Atria Investments LLC537$975.2K0.01%
Schonfeld Strategic Advisors LLC500$908.7K0.01%
Two Sigma Securities, LLC334$607.0K0.03%
Change Path, LLC328$596.0K0.03%
Ofi Invest Asset Management310$525.7K0.01%
Oak Thistle LLC255$463.4K0.34%
Boothbay Fund Management, LLC204$370.8K0.01%
Midwest Professional Planners, LTD.203$368.9K0.12%
Wedbush Securities Inc200$363.0K0.01%
Frank, Rimerman Advisors LLC177$321.7K0.02%
Paloma Partners Management Co169$307.1K0.03%
Vise Technologies, Inc.142$258.1K0.05%
Nebula Research & Development LLC136$247.2K0.04%
RSM US Wealth Management LLC139$246.2K0.00%
ExodusPoint Capital Management, LP135$245.0K0.00%
LRI Investments, LLC107$194.2K0.02%
Global Retirement Partners, LLC92$167.2K0.01%
Quarry LP51$92.7K0.04%
Family Firm, Inc.45$81.8K0.02%
Spire Wealth Management23$41.8K0.00%
Corebridge Financial, Inc.19$34.5K0.00%
EdgeRock Capital LLC9$16.4K0.01%
1620 Investment Advisors, Inc.6$10.9K0.01%
CoreCap Advisors, LLC5$9.09K0.00%
Clearstead Advisors, LLC4$7.27K0.00%
Mather Group, LLC.1$1.79K0.00%

Sold out (26)

Institutions that held White Mountains Insurance Group Ltd at the end of Q1 2024 and filed for Q2 2024 without it.

Institutions that sold out of WTM in Q2 2024
InstitutionShares, Q1 2024Value, Q1 2024
SYSTM Wealth Solutions LLC896$1.61M
Lighthouse Investment Partners, LLC786$1.41M
Aviva PLC482$864.9K
Toroso Investments, LLC479$859.5K
Walleye Capital LLC411$737.5K
Ground Swell Capital, LLC251$450.4K
Nkcfo LLC200$359.0K
New York Life Investment Management LLC200$358.9K
Cubist Systematic Strategies, LLC164$294.3K
Susquehanna International Group, LLP151$270.9K
Outfitter Financial LLC150$269.1K
CM Wealth Advisors LLC136$253.0K
National Asset Management, Inc.166$248.3K
Glenview Trust Co133$238.6K
Intech Investment Management LLC128$229.7K
Oppenheimer & Close, LLC125$224.3K
Lincoln National Corp115$206.4K
Central Trust Co100$179.4K
Headlands Technologies LLC80$143.5K
Point72 (DIFC) Ltd51$91.5K
First Manhattan Co46$82.5K
American International Group, Inc.20$35.9K
Point72 Asia (Singapore) Pte. Ltd.15$26.9K
IFP Advisors, Inc1$1.79K
English Capital Management LLC1$1.79K
Global Assets Advisory, LLC134,528$76

Not filed for Q2 2024 yet (2)

Institutions that held White Mountains Insurance Group Ltd at the end of Q1 2024 and haven't filed a 13F for Q2 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding WTM in Q1 2024 that haven't filed for Q2 2024
InstitutionShares, Q1 2024Value, Q1 2024
Credit Suisse AG4,593$8.24M
Triad Investment Management1,783$3.20M