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Disclosery

WTM WHITE MTNS INS GROUP LTD

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COM (common), issuer CIK 776867

321 managers (326 13F filers) reported a position in WTM shares at 2025-06-30, 2,320,130 shares in all. 30 filers opened a position and 26 filers sold out during the quarter.

Managers
321
13F filers
326
New
30
Added
103
Reduced
112
Sold out
26
Shares held by filers
2,320,130

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BANK OF NOVA SCOTIAin group BANK OF NOVA SCOTIA196$352K<0.01%+4113F-HRTimelineGroup
Vise Technologies, Inc.196$352K0.01%13F-HRTimeline
MARTINGALE ASSET MANAGEMENT L P191$343K0.01%-41613F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…190$341K0.01%+13013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS188$338K<0.01%+4113F-HRTimelineGroup
Savant Capital, LLCin group Savant Capital, LLC187$336K<0.01%+4313F-HR/ATimelineGroup
JOHNSON INVESTMENT COUNSEL INC185$332K<0.01%013F-HRTimeline
GAMMA Investing LLC182$327K0.02%+10613F-HRTimeline
Arax Advisory Partners181$326K0.01%-113F-HRTimeline
Frank, Rimerman Advisors LLC177$318K0.02%-513F-HRTimeline
MGO ONE SEVEN LLC175$314K0.01%013F-HRTimeline
CHOREO, LLC173$311K<0.01%+113F-HRTimeline
TWO SIGMA SECURITIES, LLC170$305K0.04%-4313F-HRTimeline
NewEdge Advisors, LLC170$305K<0.01%013F-HRTimeline
Sterling Capital Management LLC167$300K<0.01%+3013F-HR/ATimeline
ISTHMUS PARTNERS, LLC164$294K0.03%013F-HRTimeline
Crossmark Global Holdings, Inc.158$284K<0.01%+3713F-HRTimeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…158$284K<0.01%-2513F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC150$279K<0.01%new13F-HRTimelineGroup
Douglass Winthrop Advisors, LLC155$278K0.01%-3613F-HRTimeline
Evelyn Partners Asset Management Ltdin group Evelyn Partners Group Ltd154$277K0.07%013F-HR/ATimelineGroup
MONETA GROUP INVESTMENT ADVISORS LLC150$269K<0.01%013F-HRTimeline
ZACKS INVESTMENT MANAGEMENT148$266K<0.01%013F-HRTimeline
CreativeOne Wealth, LLCin group CreativeOne Wealth, LLC148$266K0.01%013F-HRTimelineGroup
Chapman Investment Management, LLC143$257K0.18%013F-HRTimeline
Riverwater Partners LLC142$255K0.12%013F-HRTimeline
Wilmington Savings Fund Society, FSB140$251K<0.01%new13F-HRTimeline
Integrated Wealth Concepts LLC140$251K<0.01%-2313F-HRTimeline
Utah Retirement Systems134$241K<0.01%013F-HRTimeline
SAGESPRING WEALTH PARTNERS, LLC133$239K0.01%-413F-HRTimeline
QUADRANT CAPITAL GROUP LLC133$239K0.01%-1313F-HRTimeline
AMALGAMATED BANK130$233K<0.01%-413F-HRTimeline
CONNABLE OFFICE INC129$232K0.02%-2113F-HRTimeline
Kestra Advisory Services, LLCin group Kestra Advisory Services, LLC128$231K<0.01%+1213F-HRTimelineGroup
PINNACLE ASSOCIATES LTD127$228K<0.01%-5013F-HRTimeline
M&T Bank Corpin group M&T Bank Corp125$224K<0.01%-1613F-HRTimelineGroup
Columbia Asset Management125$224K0.04%013F-HRTimeline
Merit Financial Group, LLC122$219K<0.01%new13F-HRTimeline
AVANTAX ADVISORY SERVICES, INC.121$218K<0.01%new13F-HRTimeline
XPONANCE LLC120$215K<0.01%+413F-HRTimeline
Vident Advisory, LLCin group Vident Advisory, LLC120$215K<0.01%new13F-HRTimelineGroup
Roehl & Yi Investment Advisors, LLC120$215K0.11%013F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV118$212K<0.01%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…117$210K<0.01%+113F-HRTimelineGroup
EVERGREEN CAPITAL MANAGEMENT LLC115$207K0.01%-1713F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\115$207K<0.01%-3613F-HRTimelineGroup
Steward Partners Investment Advisory, L…105$189K<0.01%+613F-HRTimeline
Citadel Investment Advisory, Inc.100$180K0.09%013F-HRTimeline
EASTERN BANK100$180K<0.01%013F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC94$169K<0.01%013F-HRTimelineGroup
LRI Investments, LLC90$162K0.01%013F-HRTimeline
Blue Trust, Inc.77$138K<0.01%-813F-HRTimeline
ELEVATION POINT WEALTH PARTNERS, LLC76$136K0.01%new13F-HR/ATimeline
State of Wyoming76$136K0.02%new13F-HRTimeline
KBC Group NVin group KBC Group NV72$129K<0.01%-5313F-HRTimelineGroup
Parkside Financial Bank & Trust71$127K0.01%+513F-HRTimeline
Smithfield Trust Co64$114K0.01%-913F-HRTimeline
MAI Capital Management63$113K<0.01%-1013F-HRTimeline
Colonial Trust Co / SCin group Colonial Trust Advisors61$110K0.02%013F-HRTimelineGroup
Clearstead Advisors, LLC54$97K<0.01%+5013F-HRTimeline
SIGNATUREFD, LLC52$93.4K<0.01%+213F-HRTimeline
Anchor Investment Management, LLC50$89.8K0.01%013F-HRTimeline
Federation des caisses Desjardins du Qu…50$89.8K<0.01%013F-HRTimeline
First Horizon Advisors, Inc.48$86.2K<0.01%-113F-HRTimeline
Parallel Advisors, LLC46$82.6K<0.01%+1913F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…43$77.2K<0.01%+3013F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…42$75.4K<0.01%-313F-HRTimelineGroup
VALLEY NATIONAL ADVISERS INC40$71K0.01%013F-HRTimeline
Opal Wealth Advisors, LLC38$68.2K0.02%-17113F-HRTimeline
Versant Capital Management, Inc33$59.3K0.01%-5813F-HRTimeline
TD PRIVATE CLIENT WEALTH LLC32$57.5K<0.01%+113F-HRTimeline
WPG Advisers, LLC32$57.5K0.05%-713F-HRTimeline
CWM, LLCin group CWM, LLC31$56K<0.01%+813F-HRTimelineGroup
Allworth Financial LP28$50.3K<0.01%+313F-HRTimeline
STEPH & CO26$46.7K0.02%new13F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.25$44.9K<0.01%-813F-HRTimelineGroup
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …22$40K<0.01%new13F-HRTimelineGroup
Fortitude Family Office, LLC21$37.7K0.01%+213F-HRTimeline
DELTA ASSET MANAGEMENT LLC/TN19$34.1K<0.01%013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP19$33.9K<0.01%+913F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…17$30.5K<0.01%+1113F-HRTimelineGroup
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK16$28.7K<0.01%-713F-HRTimelineGroup
GABLES CAPITAL MANAGEMENT INC.15$26.9K0.01%013F-HRTimeline
PRIVATE TRUST CO NA14$25.1K<0.01%-113F-HRTimeline
Capital Advisors, Ltd. LLC12$22K<0.01%013F-HRTimeline
NOMURA ASSET MANAGEMENT CO LTDin group NOMURA ASSET MANAGEMENT CO LTD12$21.5K<0.01%013F-HRTimelineGroup
SIERRA OCEAN, LLC12$21.5K0.02%013F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…12$21.5K<0.01%-913F-HRTimelineGroup
Geneos Wealth Management Inc.11$19.8K<0.01%-2713F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC10$17K<0.01%013F-HRTimelineGroup
Bell Investment Advisors, Inc8$14.4K<0.01%013F-HRTimeline
BARTLETT & CO. WEALTH MANAGEMENT LLC8$14.4K<0.01%013F-HRTimeline
Private Wealth Asset Management, LLC7$12.6K<0.01%013F-HRTimeline
Binnacle Investments Inc7$12.6K0.01%013F-HRTimeline
Smartleaf Asset Management LLC7$12.5K<0.01%+313F-HRTimeline
LANARK FINANCIAL, INC.7$12K<0.01%013F-HRTimeline
Covestor Ltd6$12K0.01%-11713F-HRTimeline
1620 INVESTMENT ADVISORS, INC.6$10.8K0.01%013F-HRTimeline
Hemington Wealth Management6$10K<0.01%013F-HRTimeline
JFS WEALTH ADVISORS, LLC5$8.98K<0.01%013F-HRTimeline
Spire Wealth Managementin group Spire Wealth Management5$8.98K<0.01%-313F-HRTimelineGroup
Brooklyn Investment Group4$7.18K<0.01%+313F-HR/ATimeline
CoreFirst Bank & Trust4$7.18K<0.01%new13F-HRTimeline
Bayforest Capital Ltd4$7.18K<0.01%new13F-HRTimeline
SouthState Bank Corpin group SouthState Bank Corp3$5.39K<0.01%new13F-HRTimelineGroup
TRUST CO OF VERMONT3$5.39K<0.01%013F-HRTimeline
Whipplewood Advisors, LLC3$5.39K<0.01%-2613F-HRTimeline
TD Capital Management LLC2$3.59K<0.01%013F-HRTimeline
Private Wealth Management Group, LLC2$3.59K<0.01%013F-HRTimeline
Kilter Group LLC2$3.59K<0.01%new13F-HRTimeline
TWIN PEAKS WEALTH ADVISORS, LLC1$1.82K<0.01%new13F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC1$1.8K<0.01%new13F-HRTimelineGroup
Tortoise Investment Management, LLC1$1.8K<0.01%new13F-HRTimeline
MV CAPITAL MANAGEMENT, INC.1$1.8K<0.01%-113F-HRTimeline
IFP Advisors, Inc1$1.8K<0.01%new13F-HRTimeline
Larson Financial Group LLC1$1.8K<0.01%013F-HRTimeline
SBI Securities Co., Ltd.1$1.8K<0.01%-313F-HRTimeline
Stephens Consulting, LLC1$1.8K<0.01%new13F-HRTimeline
Bruce G. Allen Investments, LLC1$1.8K<0.01%013F-HRTimeline
Financial Network Wealth Advisors LLC1$1.8K<0.01%new13F-HRTimeline
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.