WM
White Mountains Insurance Group Ltd sold $16M of MAX stock
White Mountains Insurance Group Ltd, 10% owner of MediaAlpha, Inc. (MAX), sold 1,130,000 shares of MAX stock worth $16M, per an SEC Form 4 filed Nov 13, 2026.
It was an open-market sale.
The trade happened on Nov 11, 2026, 2 days before it was made public.
MAX has moved -1.7% since the trade date, from $14.97 to $14.71 (Nov 13, 2026 close).
- Traded
- Nov 11, 2026
- Disclosed
- Nov 13, 2026
- Filing delay
- 2 days
- Price since
- -1.7%
- Role
- 10% owner
- Source
- SEC Form 4