White Mountains Insurance Group, Ltd. Institutional Ownership

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0.73%
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Exchange: NYSE
Industry: Finance
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Ownership Summary Institutional Holdings Insiders
(SEC Form 4)
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Ownership Summary as reported in the most recent 13F filings


Institutional Ownership 90.20%
Total Shares Outstanding (millions) 5
Total Value of Holdings (millions) $3,996

Active Positions

Holders Shares
Increased Positions 77 139,461
Decreased Positions 91 224,517
Held Positions 43 4,520,882
Total Institutional Shares 211 4,884,860

New and Sold Out Positions


Holders Shares
New Positions 23 22,657
Sold Out Positions 15 25,405

23 New Institutional Holders
22,657 New Total Shares Held


Click on the column header links to resort ascending (▲) or descending (▼).
Owner Name Date Shared Held Change (Shares) Change (%) Value (in 1,000s)
SWISS NATIONAL BANK 12/31/2015 7,731 7,731 New 6,324
MCQUEEN, BALL & ASSOCIATES INC. 03/31/2016 3,937 3,937 New 3,220
WALLEYE TRADING LLC 12/31/2015 1,897 1,897 New 1,552
IBM RETIREMENT FUND 12/31/2015 1,384 1,384 New 1,132
MACQUARIE GROUP LTD 12/31/2015 1,300 1,300 New 1,063
JEFFERIES GROUP LLC 12/31/2015 1,011 1,011 New 827
HIGHBRIDGE CAPITAL MANAGEMENT LLC 12/31/2015 895 895 New 732
AHL PARTNERS LLP 12/31/2015 798 798 New 653
LAURION CAPITAL MANAGEMENT LP 12/31/2015 600 600 New 491
TEACHER RETIREMENT SYSTEM OF TEXAS 12/31/2015 546 546 New 447
PALOMA PARTNERS MANAGEMENT CO 12/31/2015 453 453 New 371
TWO SIGMA SECURITIES, LLC 12/31/2015 448 448 New 366
TOWER RESEARCH CAPITAL LLC (TRC) 12/31/2015 446 446 New 365
SQUAREPOINT OPS LLC 12/31/2015 400 400 New 327
PITCAIRN CO 12/31/2015 352 352 New 288

Institutional Holdings information for this company is filed by major institutions on form 13-F with the Securities and Exchange Commission.
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