White Mountains Insurance GPWTM

13F holders, Q3 2024 (September 30)
304holders −2
26new positions
25sold out
5famous investors
$1697.77avg. 13F price*

At the end of Q3 2024, 304 institutions reported holding White Mountains Insurance GP (WTM) in their 13F filings, down 2 from Q2 2024. 26 opened new positions and 25 sold out. The largest holders were Vanguard Group Inc. ($425.4M), Morgan Stanley ($303.7M) and Dimensional Fund Advisors LP ($268.9M). 5 famous investors held it, including Cliff Asness (0.0% of AQR Capital Management's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio).

Company
White Mountains Insurance GP
CUSIP
G9618E107
Latest filing quarter
Q2 2026

History

Number of 13F holders

0100200300400 Q1 2024: 303Q1 2024Q2 2024: 306Q2 2024Q3 2024: 304Q3 2024Q4 2024: 324Q4 2024Q1 2025: 322Q1 2025Q2 2025: 325Q2 2025Q3 2025: 338Q3 2025Q4 2025: 353Q4 2025Q1 2026: 368Q1 2026Q2 2026: 356Q2 2026

Total Exit/New Position Q2 2024 → Q3 2024

InstitutionsTotal Value
New Positions26$16.6M
Exits25$20.0M

All 13F filers, Q2 2024 → Q3 2024: 71,468 shares bought and 101,287 shares sold, net −29,819 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 304 holders

Vanguard Group Inc. 0.01% Reduce -0.1% 250,783 $425.4M
Morgan Stanley 0.02% Reduce -3.2% 179,037 $303.7M
Dimensional Fund Advisors LP 0.07% Reduce -0.6% 158,534 $268.9M
Fuller & Thaler Asset Management, Inc. 0.81% Reduce -5.4% 122,277 $207.4M
River Road Asset Management, LLC 2.62% Add +1.6% 118,206 $200.5M
BlackRock, Inc. 0.00% — 115,123 $195.3M
Boston Partners 0.17% Reduce -2.9% 85,097 $145.0M
Wallace Capital Management Inc. 18.92% Add +1.3% 82,366 $139.7M
London Co. of Virginia 0.62% Add +5.1% 69,853 $118.5M
Wellington Management Group LLP 0.02% Reduce -13.1% 60,675 $102.9M
T. Rowe Price Investment Management, Inc. 0.06% Reduce -0.1% 57,683 $97.8M
State Street Corp. 0.00% Add +5.2% 54,877 $93.1M
Fiduciary Management Inc. 0.73% Reduce -0.1% 49,320 $83.7M
Bank of America Corp. 0.01% Add +3.1% 42,459 $72.0M
Geode Capital Management, LLC 0.01% Add +0.7% 39,844 $67.6M
Reinhart Partners, Llc. 2.54% Add +3.9% 39,369 $66.8M
Select Equity Group, L.P. 0.21% Reduce -41.6% 34,663 $58.8M
Neuberger Berman Group LLC 0.04% Add +92.9% 33,110 $56.2M
Lord, Abbett & Co. LLC 0.18% Add +8.0% 33,012 $56.0M
Norges Bank 0.01% Add +1.9% 30,673 $52.0M
Cannell & Spears LLC 0.97% Reduce -3.8% 28,923 $49.1M
Charles Schwab Investment Management Inc. 0.01% Add +1.5% 25,220 $42.8M
Brown Advisory Inc. 0.05% Add +1.5% 23,149 $39.3M
Allspring Global Investments Holdings, LLC 0.06% Add +44.0% 22,555 $38.3M
FMR LLC 0.00% Add +7.8% 22,196 $37.6M
Raymond James & Associates 0.02% Reduce -4.2% 21,743 $36.9M
Mraz, Amerine & Associates, Inc. 6.50% Add +0.8% 21,198 $36.0M
Southeastern Asset Management Inc. 1.59% Reduce -3.2% 20,738 $35.2M
Robeco Institutional Asset Management B.V. 0.07% Reduce -5.0% 20,316 $34.5M
Envestnet Asset Management Inc. 0.01% Add +5.9% 16,176 $27.4M
Elkhorn Partners Limited Partnership 17.63% Add +0.4% 16,175 $27.4M
Northern Trust Corp. 0.00% Add +1.1% 16,114 $27.3M
Royce & Associates LP 0.22% Reduce -3.7% 14,467 $24.5M
Scout Investments, Inc. 0.61% Reduce -14.3% 12,839 $23.4M
California Public Employees Retirement System 0.02% Reduce -7.7% 13,207 $22.4M
Speece Thorson Capital Group Inc. 3.57% Reduce -0.3% 11,398 $19.3M
First Trust Advisors LP 0.02% Reduce -6.2% 10,910 $18.5M
AQR Capital Management 0.03% Add +4.4% 10,906 $18.5M
Bank of New York Mellon Corp 0.00% Add +0.0% 10,872 $18.4M
Thompson Siegel & Walmsley LLC 0.26% Reduce -13.0% 10,363 $17.6M
Perpetual Ltd 0.18% Reduce -4.4% 9,727 $16.5M
Wells Fargo & Company 0.00% Reduce -14.8% 9,581 $16.3M
Nuveen Asset Management, LLC 0.00% Reduce -0.9% 7,758 $13.2M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Reduce -1.0% 7,640 $13.0M
GW&K Investment Management, LLC 0.11% Add +1.5% 7,546 $12.8M
Horizon Kinetics Asset Management LLC 0.18% Add +422.9% 7,138 $12.1M
Hotchkis & Wiley Capital Management LLC 0.04% Reduce -2.7% 6,756 $11.5M
Victory Capital Management Inc. 0.01% Reduce -44.5% 6,353 $10.8M
Alaska Permanent Fund Corp 0.15% No change 5,902 $10.0M
American Century Companies Inc. 0.01% Reduce -62.7% 5,486 $9.3M
Williams Jones Wealth Management, LLC. 0.10% No change 5,193 $8.8M
Swiss National Bank 0.01% No change 5,046 $8.6M
Rhumbline Advisers 0.01% Reduce -0.3% 4,533 $7.7M
Brandywine Global Investment Management, LLC 0.05% Reduce -2.4% 4,133 $7.6M
Edgestream Partners, L.P. 0.33% New 4,472 $7.6M
Invesco Ltd. 0.00% Reduce -62.5% 4,144 $7.0M
Legal & General Group Plc 0.00% Add +3.9% 3,918 $6.6M
Prospector Partners LLC 0.70% Add +17.2% 3,855 $6.5M
Lee Danner & Bass Inc. 0.39% No change 3,283 $5.6M
D. E. Shaw & Co. 0.01% Reduce -10.0% 3,240 $5.5M
Ameriprise Financial Inc. 0.00% Reduce -0.2% 3,079 $5.2M
UBS Group AG 0.00% Add +72.1% 3,006 $5.1M
State Board of Administration of Florida Retirement System 0.01% Add +55.4% 2,972 $5.0M
JPMorgan Chase & Co. 0.00% Reduce -7.5% 2,852 $4.8M
New York State Common Retirement Fund 0.01% No change 2,723 $4.6M
Sei Investments Co. 0.01% Add +4.1% 2,486 $4.2M
California State Teachers Retirement System 0.00% Reduce -2.7% 2,423 $4.1M
Harbor Capital Advisors, Inc. 0.18% Add +100.5% 2,390 $4.1M
Creative Planning 0.00% Reduce -1.6% 2,336 $4.0M
DAVENPORT & Co LLC 0.02% No change 2,171 $3.7M
Autumn Glory Partners, LLC 1.41% Add +100.0% 2,160 $3.7M
Cove Street Capital, LLC 2.82% Reduce -14.6% 2,123 $3.6M
MML Investors Services, LLC 0.01% Add +11.0% 2,062 $3.5M
Renaissance Technologies 0.00% Reduce -5.0% 1,900 $3.2M
Goldman Sachs Group Inc. 0.00% Reduce -17.3% 1,865 $3.2M
Cerity Partners LLC 0.01% Reduce -0.8% 1,715 $2.9M
Qube Research & Technologies Ltd 0.01% Add +4.2% 1,713 $2.9M
HighTower Advisors, LLC 0.00% Add +579.1% 1,562 $2.6M
Stifel Financial Corp. 0.00% Reduce -6.2% 1,548 $2.6M
Parsons Capital Management Inc. 0.16% Add +2.7% 1,513 $2.6M
Royal Bank of Canada 0.00% Reduce -2.3% 1,506 $2.6M
STRS Ohio 0.01% Add +11.3% 1,499 $2.5M
Quantinno Capital Management LP 0.03% Add +12.3% 1,490 $2.5M
T. Rowe Price Associates Inc. 0.00% Add +5.2% 1,444 $2.5M
Oppenheimer Asset Management Inc. 0.03% Reduce -0.7% 1,442 $2.4M
Agf Management Ltd. 0.01% Add +30.8% 1,400 $2.4M
Focus Partners Wealth 0.01% New 1,373 $2.3M
Man Group plc 0.01% Reduce -41.4% 1,367 $2.3M
Truist Financial Corp. 0.00% Reduce -24.7% 1,357 $2.3M
Jane Street Group, LLC 0.00% Add +41.0% 1,307 $2.2M
TD Asset Management Inc 0.00% No change 1,300 $2.2M
Leuthold Group, LLC 0.25% New 1,300 $2.2M
LPL Financial LLC 0.00% Add +15.8% 1,262 $2.1M
Janus Henderson Group PLC 0.00% No change 1,223 $2.1M
Forum Financial Management, LP 0.03% No change 1,198 $2.0M
Mitsubishi UFJ Trust & Banking Corp 0.00% Add +86.4% 1,182 $2.0M
1834 Investment Advisors Co. 0.23% No change 1,176 $2.0M
Alliancebernstein L.P. 0.00% Reduce -0.6% 1,176 $2.0M
Pecaut & Co. 0.70% No change 1,167 $2.0M
Barclays PLC 0.00% Add +101.9% 1,151 $2.0M
Corient Private Wealth LP 0.00% Add +35.9% 1,128 $1.9M
State of New Jersey Common Pension Fund D 0.01% Reduce -6.0% 1,118 $1.9M
O'shaughnessy Asset Management, LLC 0.02% Reduce -0.8% 1,017 $1.9M
Nisa Investment Advisors, LLC 0.01% No change 1,100 $1.9M
Treasurer of the State of North Carolina 0.01% No change 1,086 $1.8M
Teachers Retirement System of the State of Kentucky 0.02% Add +14.4% 1,080 $1.8M
Main Street Financial Solutions, LLC 0.16% Add +0.3% 1,002 $1.7M
Sanctuary Advisors, LLC 0.01% Add +14.9% 855 $1.7M
Ensign Peak Advisors, Inc 0.00% Reduce -8.7% 1,000 $1.7M
Oddo BHF Asset Management Sas 0.08% — 947 $1.6M
Public Employees Retirement System of Ohio 0.01% Reduce -4.8% 941 $1.6M
Sutton Place Investors LLC 0.96% No change 929 $1.6M
Brave Asset Management Inc. 0.39% No change 924 $1.6M
Sequoia Financial Advisors, LLC 0.02% Add +353.3% 884 $1.5M
Dark Forest Capital Management LP 0.18% Add +10.4% 851 $1.4M
ExodusPoint Capital Management, LP 0.01% Add +499.3% 809 $1.4M
Arizona State Retirement System 0.01% Add +3.4% 739 $1.3M
Schonfeld Strategic Advisors LLC 0.01% Add +40.0% 700 $1.2M
Mariner, LLC 0.00% Add +12.3% 674 $1.1M
King Luther Capital Management Corp. 0.00% No change 650 $1.1M
Citigroup Inc. 0.00% Add +51.6% 649 $1.1M
Martingale Asset Management L P 0.02% Reduce -52.8% 592 $1.0M
Raymond James Financial Services Advisors, Inc. 0.00% Add +0.3% 587 $996K
Atria Investments, Inc 0.01% Add +8.8% 584 $990K
First Hawaiian Bank 0.03% No change 572 $970K
AMG National Trust Bank 0.03% No change 565 $958K
Parker Investment Management, LLC 0.15% No change 550 $933K
Regions Financial Corp. 0.01% No change 550 $933K
Cresset Asset Management, LLC 0.00% Add +15.9% 546 $926K
PNC Financial Services Group, Inc. 0.00% Reduce -3.2% 541 $918K
Captrust Financial Advisors 0.00% Add +1.1% 536 $909K
QRG Capital Management, Inc. 0.01% Add +0.2% 534 $906K
Manufacturers Life Insurance Company, The 0.00% Add +0.8% 534 $906K
Ethic Inc. 0.02% Reduce -11.1% 504 $904K
Midwest Professional Planners, LTD. 0.28% Add +161.6% 531 $901K
Park Avenue Securities LLC 0.01% Reduce -6.7% 527 $894K
Chicago Partners Investment Group LLC 0.03% Add +0.7% 454 $832K
Envestnet Portfolio Solutions, Inc. 0.00% Add +11.5% 475 $806K
Resona Asset Management Co.,Ltd. 0.00% No change 458 $777K
Legacy Advisors, LLC 0.08% New 450 $763K
Bank of Montreal 0.00% Reduce -0.9% 425 $723K
Kathleen S. Wright Associates Inc. 0.28% No change 380 $688K
Equitable Trust Co. 0.04% Add +16.9% 401 $680K
XTX Topco Ltd 0.05% New 400 $678K
Millennium Management 0.00% Add +8.2% 394 $668K
Klingenstein Fields & Co. LP 0.03% No change 391 $663K
Verition Fund Management LLC 0.01% Add +26.5% 391 $663K
American Capital Advisory, LLC 0.38% No change 390 $662K
Prudential Financial Inc. 0.00% Add +47.0% 388 $658K
Brandes Investment Partners, LP 0.01% Add +14.2% 387 $656K
Osaic Holdings, Inc. 0.00% Reduce -35.0% 386 $655K
Franklin Resources Inc. 0.00% Add +17.6% 354 $654K
Teacher Retirement System of Texas 0.00% Reduce -25.2% 385 $653K
Glenmede Trust Co. NA 0.00% Add +1.9% 384 $651K
Roundview Capital LLC 0.05% No change 375 $636K
Tudor Investment Corporation 0.01% New 363 $616K
Two Sigma Investments, LP 0.00% Add +0.8% 356 $604K
Public Employees Retirement Association of Colorado 0.00% No change 353 $599K
Pathstone Holdings, LLC 0.00% Add +1.4% 353 $599K
Bryant Woods Investment Advisors, LLC 0.29% No change 340 $577K
Pictet Asset Management Holding SA 0.00% Add +2.5% 328 $556K
Voya Investment Management LLC 0.00% Reduce -8.0% 324 $550K
State of Wisconsin Investment Board 0.00% Reduce -3.6% 319 $541K
Legacy Wealth Asset Management, LLC 0.14% Add +3.3% 317 $538K
Commonwealth Equity Services, LLC 0.00% Add +6.9% 310 $526K
BNP Paribas Financial Markets 0.00% Add +204.0% 301 $511K
Brown Miller Wealth Management, LLC 0.20% No change 298 $506K
&partners 0.01% New 296 $502K
Lecap Asset Management Ltd. 0.11% New 296 $502K
Nebula Research & Development LLC 0.06% Add +108.8% 284 $482K
Essex Bank 0.12% No change 284 $482K
Shotwell Rutter Baer Inc 0.39% Reduce -10.0% 270 $480K
Los Angeles Capital Management LLC 0.00% No change 282 $478K
Highlander Partners, L.P. 0.28% No change 280 $475K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% No change 253 $429K
Cetera Investment Advisers 0.00% Add +37.4% 246 $417K
Ritholtz Wealth Management 0.01% Reduce -2.0% 244 $414K
Janney Montgomery Scott LLC 0.00% Add +9.3% 236 $400K
Sendero Wealth Management, LLC 0.06% No change 234 $397K
Athena Investment Management 0.22% No change 232 $394K
Hengehold Capital Management LLC 0.04% Add +26.2% 231 $392K
Summit Trail Advisors, LLC 0.01% Reduce -5.4% 228 $387K
Venturi Wealth Management, LLC 0.02% No change 221 $375K
Keybank National Association 0.00% Reduce -6.0% 219 $371K
Vestcor Inc 0.01% No change 219 $371K
One Wealth Advisors, LLC 0.06% No change 215 $365K
Private Advisor Group, LLC 0.00% Add +0.5% 214 $363K
Bank of Nova Scotia 0.00% Add +3.9% 214 $363K
Hudson Value Partners, LLC 0.14% No change 206 $349K
Global Retirement Partners, LLC 0.01% Add +121.7% 204 $346K
Opal Wealth Advisors, LLC 0.11% Add +1.5% 201 $341K
Vanguard Personalized Indexing Management, LLC 0.01% Add +1.0% 201 $341K
Cannon Global Investment Management, LLC 0.81% New 200 $339K
Evercore Wealth Management, LLC 0.01% No change 200 $339K
Neville Rodie & Shaw Inc. 0.03% No change 200 $339K
Wedbush Securities Inc. 0.01% No change 200 $339K
Folger Nolan Fleming Douglas Capital Management, Inc. 0.03% No change 199 $338K
Johnson Investment Counsel Inc. 0.00% No change 185 $314K
Connable Office Inc. 0.03% Reduce -4.7% 181 $307K
Arax Advisory Partners 0.03% Add +2.3% 179 $304K
Frank, Rimerman Advisors LLC 0.02% No change 177 $300K
Principal Securities, Inc. 0.01% Add +16.1% 173 $293K
Isthmus Partners, LLC 0.03% No change 164 $278K
Wealth Enhancement Advisory Services, LLC 0.00% Add +3.2% 162 $275K
Choreo, LLC 0.00% Add +9.3% 152 $269K
Two Sigma Securities, LLC 0.02% Reduce -52.7% 158 $268K
Principal Financial Group Inc. 0.00% Reduce -16.4% 158 $268K
Pinnacle Associates Ltd. 0.00% No change 177 $266K
Deutsche Bank AG 0.00% Add +2.7% 153 $260K
Empower Advisory Group, LLC 0.00% No change 151 $256K
US Bancorp \de 0.00% Reduce -24.9% 151 $256K
Moneta Group Investment Advisors LLC 0.00% No change 150 $254K
CreativeOne Wealth, LLC 0.01% Reduce -54.9% 148 $251K
Zacks Investment Management 0.00% New 148 $251K
Susquehanna International Group, LLP 0.00% New 145 $246K
Chapman Investment Management, LLC 0.18% No change 143 $243K
Vise Technologies, Inc. 0.03% Reduce -2.1% 139 $236K
Townsquare Capital LLC 0.00% Add +13.9% 139 $236K
Centiva Capital, LP 0.01% New 137 $232K
Farther Finance Advisors, LLC 0.01% Reduce -6.3% 134 $227K
Utah Retirement Systems 0.00% No change 134 $227K
Amalgamated Bank 0.00% Reduce -69.5% 134 $227K
New Potomac Partners, LLC 0.11% No change 130 $221K
Savant Capital, LLC 0.00% Add +2.4% 130 $221K
Russell Investments Group, Ltd. 0.00% Reduce -52.2% 130 $221K
M&T Bank Corp 0.00% Reduce -3.0% 129 $219K
LRI Investments, LLC 0.02% Add +3.7% 111 $213K
Lindbrook Capital, LLC 0.02% No change 124 $210K
Pitcairn Co. 0.01% Reduce -6.8% 124 $210K
Covestor Ltd 0.13% Add +36.7% 123 $209K
Avantax Advisory Services, Inc. 0.00% Add +4.3% 122 $207K
Raymond James Trust N.A. 0.00% Reduce -8.4% 120 $204K
Blue Trust, Inc. 0.00% Add +77.4% 94 $171K
Baldwin Wealth Partners LLC 0.01% No change 100 $170K
Eastern Bank 0.00% New 100 $170K
Sterling Capital Management LLC 0.00% — 95 $161K
Bessemer Group Inc. 0.00% No change 85 $144K
Smithfield Trust Co 0.01% Reduce -15.5% 82 $138K
KBC Group NV 0.00% Add +21.9% 78 $132K
Steward Partners Investment Advisory, LLC 0.00% No change 75 $127K
Quent Capital, LLC 0.01% No change 71 $120K
Parkside Financial Bank & Trust 0.01% Add +3.4% 61 $103K
Colonial Trust Co / SC 0.02% No change 61 $103K
Anchor Investment Management, LLC 0.01% No change 50 $85K
Signaturefd, LLC 0.00% Reduce -10.7% 50 $85K
Federation des caisses Desjardins du Quebec 0.00% No change 50 $85K
GAMMA Investing LLC 0.01% Add +104.2% 49 $83K
First Horizon Advisors, Inc. 0.00% Add +4.4% 47 $80K
MetLife Investment Management, LLC 0.00% Reduce -2.2% 44 $75K
Quadrant Capital Group LLC 0.00% No change 40 $68K
Valley National Advisers Inc. 0.01% No change 40 $67K
CIBC Private Wealth Group LLC 0.00% No change 39 $66K
Avior Wealth Management, LLC 0.00% No change 37 $63K
Tower Research Capital LLC (TRC) 0.00% Add +125.0% 36 $61K
TD Private Client Wealth LLC 0.00% No change 35 $59K
Community Bank, N.A. 0.01% No change 34 $58K
Parallel Advisors, LLC 0.00% Reduce -5.9% 32 $54K
Lazard Asset Management LLC 0.00% Reduce -88.8% 30 $50K
UMB Bank, n.a. 0.00% Add +40.0% 28 $47K
GeoWealth Management, LLC 0.00% New 26 $44K
Cwm, LLC 0.00% Add +8.3% 26 $44K
Allworth Financial LP 0.00% No change 25 $42K
Centerpoint Advisors, LLC 0.01% No change 25 $42K
Hexagon Capital Partners LLC 0.01% Add +35.7% 19 $32K
Delta Asset Management LLC 0.00% No change 19 $32K
Spire Wealth Management 0.00% Reduce -17.4% 19 $32K
Corebridge Financial, Inc. 0.00% No change 19 $32K
Gables Capital Management Inc. 0.01% New 15 $25K
Huntington National Bank 0.00% Add +40.0% 14 $24K
Nomura Asset Management Co. Ltd. 0.00% No change 12 $20K
Capital Advisors, Ltd. LLC 0.00% Reduce -29.4% 12 $20K
Ashton Thomas Securities, LLC 0.00% New 11 $19K
NewEdge Advisors, LLC 0.00% No change 11 $19K
Northwestern Mutual Wealth Management Co. 0.00% Add +22.2% 11 $19K
Planning Capital Management Corp 0.01% New 10 $17K
Versant Capital Management, Inc 0.00% Add +25.0% 10 $17K
Headlands Technologies LLC 0.00% New 9 $15K
EverSource Wealth Advisors, LLC 0.00% No change 9 $15K
Mitsubishi UFJ Asset Management Co., Ltd. 0.00% No change 9 $15K
Raleigh Capital Management Inc. 0.01% No change 8 $14K
Bell Investment Advisors, Inc 0.00% No change 8 $14K
Bartlett & Co. Wealth Management LLC 0.00% No change 8 $14K
Concourse Financial Group Securities, Inc. 0.00% No change 8 $14K
Lanark Financial, Inc. 0.00% No change 7 $11K
1620 Investment Advisors, Inc. 0.01% No change 6 $10K
Sachetta, LLC 0.00% Reduce -16.7% 5 $8K
Private Trust Co. NA 0.00% No change 5 $8K
JFS Wealth Advisors, LLC 0.00% No change 5 $8K
Hemington Wealth Management 0.00% New 5 $8K
Smartleaf Asset Management LLC 0.00% Add +300.0% 4 $7K
Geneos Wealth Management Inc. 0.00% New 4 $7K
Clearstead Advisors, LLC 0.00% No change 4 $7K
Brown Brothers Harriman & Co. 0.00% New 4 $7K
Trust Co. of Vermont 0.00% New 3 $5K
SJS Investment Consulting Inc. 0.00% Add +100.0% 2 $3K
Frazier Financial Advisors, LLC 0.00% Reduce -50.0% 2 $3K
Private Wealth Management Group, LLC 0.00% No change 2 $3K
Fourpath Capital Management, LLC 0.00% New 2 $3K
TD Capital Management LLC 0.00% No change 2 $3K
Brooklyn Investment Group 0.00% New 1 $2K
MV Capital Management, Inc. 0.00% New 1 $2K
Bruce G. Allen Investments, LLC 0.00% New 1 $2K
Fifth Third Bancorp 0.00% No change 1 $2K
Mather Group, Llc. 0.00% No change 1 $2K

"% of holder's portfolio" is WTM's weight in each manager's 13F, not the share of White Mountains Insurance GP the manager owns.