← All White Mountains Insurance Group LTD filings

White Mountains Insurance Group LTD Schedule 13D activist filings

Filed when an investor crosses five percent and intends to influence the company — the activist disclosure.

NYSE
WTM
White Mountains Insurance Group LTD
SCHEDULE: White Mountains Adjusts MediaAlpha Stake Disclosure
White Mountains Insurance Group updates its beneficial ownership of MediaAlpha, Inc. following changes in the issuer's outstanding share count.
NYSE
WTM
White Mountains Insurance Group LTD
SCHEDULE: MediaAlpha Ownership Update: White Mountains Stake at 31.7%
White Mountains Insurance Group and WM Hinson updated their beneficial ownership in MediaAlpha, Inc. Class A Common Stock to 31.7%, a change solely due to an increase in outstanding shares.