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MAX Sale Disclosure
White Mountains Insurance Group Ltd · SEC Form 4 · Filed Nov 5, 2026
Sale
Calculated transaction value
$76.46M
White Mountains Insurance Group Ltd 10% owner
MAX
MediaAlpha
MAX
Transaction date
Nov 4, 2026
Public filing date
Nov 5, 2026
Filing lag
Filed 1 day later
MAX daily price context
Close on/before transaction
$15.05
Nov 4, 2026
First close after public filing
$14.2
Nov 6, 2026
Return after filing · so far
+5.42%
Through Nov 11, 2026
Source details
- Reported owner
- Not disclosed
- Source asset code
- Security
- Security
- Class A Common Stock
- Quantity / price
- 5,500,391 shares @ $13.9
- SEC ownership
- Indirect
- Transaction code
- S
- Form
- 4
- Filing identifier
- 0000950157-26-001218
Filing cohort
Transactions in this filing
Showing 1 of 1
Trades
1
Issuers
1
Estimated value
$76.46M
Buys / sales
0 / 1
| Issuer | Transaction | Traded | Value |
|---|---|---|---|
| Mediaalpha, Inc. MAX Current | Sale | Nov 4, 2026 | $76.46M |