WHITE MTNS INS GROUP LTD

Ticker: WTM CUSIP: G9618E107 Class: COM

Note: Option positions (PUT/CALL) are excluded.

InstitutionSharesValue ($000)
VANGUARD GROUP INC235,698$489,788
DIMENSIONAL FUND ADVISORS LP156,604$325,428
NEUBERGER BERMAN GROUP LLC129,654$269,425
River Road Asset Management, LLC120,880$251,192
BlackRock, Inc.112,289$233,341
FULLER & THALER ASSET MANAGEMENT, INC.108,172$224,785
COOKE & BIELER LP106,579$221,474
FIDUCIARY MANAGEMENT INC /WI/90,333$187,715
MORGAN STANLEY82,151$170,716
Wallace Capital Management Inc.80,347$166,963
Boston Partners76,911$159,728
LONDON CO OF VIRGINIA58,697$121,996
STATE STREET CORP50,663$105,279
REINHART PARTNERS, LLC.43,973$91,413
GEODE CAPITAL MANAGEMENT, LLC41,518$86,296
LORD, ABBETT & CO. LLC33,796$70
GENDELL JEFFREY L32,520$67,578
NORGES BANK32,184$66,879
SOUTHEASTERN ASSET MANAGEMENT INC/TN/31,652$65,774
BANK OF AMERICA CORP /DE/28,809$59,866
Cannell & Spears LLC28,115$58,423
RAYMOND JAMES FINANCIAL INC23,969$49,808
CHARLES SCHWAB INVESTMENT MANAGEMENT INC23,238$48,289
Mraz, Amerine & Associates, Inc.22,629$47,024
Allspring Global Investments Holdings, LLC20,193$41,232
Select Equity Group, L.P.19,713$40,964
BROWN ADVISORY INC18,956$39,393
NORTHERN TRUST CORP16,667$34,635
WELLINGTON MANAGEMENT GROUP LLP15,928$33,099
ENVESTNET ASSET MANAGEMENT INC15,798$32,829
ELKHORN PARTNERS LIMITED PARTNERSHIP13,598$28,257
HORIZON KINETICS ASSET MANAGEMENT LLC13,121$27,266
WCM INVESTMENT MANAGEMENT, LLC10,682$22,204
SPEECE THORSON CAPITAL GROUP INC10,672$22
WELLS FARGO & COMPANY/MN9,141$18,994
THOMPSON SIEGEL & WALMSLEY LLC8,927$19
Bank of New York Mellon Corp8,831$18,352
GW&K Investment Management, LLC8,621$18
D. E. Shaw & Co., Inc.8,593$17,857
SEI INVESTMENTS CO7,916$16,450
UBS ASSET MANAGEMENT AMERICAS INC7,655$15,907
Quantinno Capital Management LP7,271$15,109
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC6,752$14,031
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM6,716$13,956
Gotham Asset Management, LLC6,716$13,956
T. Rowe Price Investment Management, Inc.6,662$14
VICTORY CAPITAL MANAGEMENT INC6,296$13,083
UBS Group AG6,001$12,470
ROYCE & ASSOCIATES LP5,947$12,358
Phocas Financial Corp.5,491$11,410
GOLDMAN SACHS GROUP INC5,260$10,931
Williams Jones Wealth Management, LLC.5,193$10,791
Swiss National Bank5,086$10,569
FIRST TRUST ADVISORS LP4,555$9,465
AQR CAPITAL MANAGEMENT LLC4,476$9,301
RHUMBLINE ADVISERS4,165$8,655
DARK FOREST CAPITAL MANAGEMENT LP3,615$7,512
Cerity Partners LLC3,543$7,362
Nuveen, LLC3,475$7,221
Creative Planning3,415$7,096
BNP PARIBAS ARBITRAGE, SA3,340$6,941
Brandywine Global Investment Management, LLC3,226$6,704
LEE DANNER & BASS INC3,103$6,448
AMERIPRISE FINANCIAL INC3,053$6,344
Legal & General Group Plc3,037$6,311
Invesco Ltd.2,995$6,224
MML INVESTORS SERVICES, LLC2,935$6,100
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM2,792$5,802
Triad Investment Management2,548$5,294
NEW YORK STATE COMMON RETIREMENT FUND2,513$5,222
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2,457$5,106
DAVENPORT & Co LLC2,123$4,412
Forum Financial Management, LP2,016$4,189
PRICE T ROWE ASSOCIATES INC /MD/1,990$4
LPL Financial LLC1,965$4,084
PARSONS CAPITAL MANAGEMENT INC/RI1,872$3,890
CITIGROUP INC1,849$3,842
JPMORGAN CHASE & CO1,806$3,753
Atlantic Union Bankshares Corp1,765$3,668
JANE STREET GROUP, LLC1,707$3,547
Regency Capital Management Inc.\DE1,635$3,398
Focus Partners Wealth1,610$3,098
OPPENHEIMER ASSET MANAGEMENT INC.1,502$3,121
RENAISSANCE TECHNOLOGIES LLC1,501$3,119
HighTower Advisors, LLC1,447$3,007
AGF MANAGEMENT LTD1,408$2,926
STIFEL FINANCIAL CORP1,312$2,728
CITADEL ADVISORS LLC1,193$2,479
Aquatic Capital Management LLC1,180$2,452
1834 INVESTMENT ADVISORS CO1,176$2,444
PECAUT & CO.1,167$2,425
State of New Jersey Common Pension Fund D1,135$2,359
JANUS HENDERSON GROUP PLC1,123$2,336
LEUTHOLD GROUP, LLC1,117$2,321
MARSHALL WACE, LLP1,098$2,282
ROYAL BANK OF CANADA1,097$2,280
Autumn Glory Partners, LLC1,080$2,244
Police & Firemen's Retirement System of New Jersey1,070$2,223
Treasurer of the State of North Carolina1,034$2
TD Asset Management Inc1,000$2,078
248 other institutions64,493$122,697
Total (348 institutions)2,205,498$4,421,944