WHITE MOUNTAINS INSURANCE GROUP LTD

PublicCIK: 776867
WTMNYSE
Location

HANOVER, NH

NONKO EUGENE

144
→MEDIAALPHA, INC.
Oct 19, 2026·Oct 19, 2026
-33

YI STEVEN

4
→MEDIAALPHA, INC.
Oct 10, 2026·Oct 10, 2026
2 txn

YI STEVEN

144
→MEDIAALPHA, INC.
Oct 8, 2026·Oct 8, 2026
-8

CHOKSI MARY C

4
→OMNICOM GROUP INC.
Oct 5, 2026·Oct 5, 2026
1 txn

YI STEVEN

4
→MEDIAALPHA, INC.
Sep 2, 2026·Sep 2, 2026
1 txn

TANNER DAVID ALLEN

4
→WHITE MOUNTAINS INSURANCE GROUP LTD
Aug 31, 2026·Aug 31, 2026
1 txn

KLAR STEPHEN

4
→WHITE MOUNTAINS INSURANCE GROUP LTD
Aug 27, 2026·Aug 27, 2026
1 txn

KLAR STEPHEN

3
→WHITE MOUNTAINS INSURANCE GROUP LTD
Aug 27, 2026·Aug 27, 2026
1 txn

COYNE JEFFREY B

4
→MEDIAALPHA, INC.
Aug 18, 2026·Aug 18, 2026
4 txn

WHITE MOUNTAINS INSURANCE GROUP LTD

13F-HR

Holdings

Aug 12, 2026·Aug 12, 2026

YI STEVEN

4
→MEDIAALPHA, INC.
Aug 5, 2026·Aug 5, 2026
1 txn

YI STEVEN

4
→MEDIAALPHA, INC.
Jul 18, 2026·Jul 18, 2026
2 txn

YI STEVEN

4
→MEDIAALPHA, INC.
Jul 15, 2026·Jul 15, 2026
3 txn

YI STEVEN

4
→MEDIAALPHA, INC.
Jul 9, 2026·Jul 9, 2026
2 txn

YI STEVEN

144
→MEDIAALPHA, INC.
Jul 6, 2026·Jul 6, 2026
-18

CHOKSI MARY C

4
→OMNICOM GROUP INC.
Jul 6, 2026·Jul 6, 2026
1 txn

YI STEVEN

4
→MEDIAALPHA, INC.
Jul 1, 2026·Jul 1, 2026
1 txn

YI STEVEN

144
→MEDIAALPHA, INC.
Jul 1, 2026·Jul 1, 2026
-18

NONKO EUGENE

144
→MEDIAALPHA, INC.
Jun 29, 2026·Jun 29, 2026
-12

CARLSON PETER M

4
→CITIZENS, INC.
Jun 22, 2026·Jun 22, 2026
3 txn

YI STEVEN

4
→MEDIAALPHA, INC.
Jun 18, 2026·Jun 18, 2026
1 txn

YI STEVEN

144
→MEDIAALPHA, INC.
Jun 16, 2026·Jun 16, 2026
-25

NONKO EUGENE

144
→MEDIAALPHA, INC.
Jun 16, 2026·Jun 16, 2026
-9

NONKO EUGENE

144
→MEDIAALPHA, INC.
Jun 10, 2026·Jun 10, 2026
-8

TANNER DAVID ALLEN

4
→WHITE MOUNTAINS INSURANCE GROUP LTD
May 22, 2026·May 22, 2026
1 txn
Page 1 of 27 · 663 total
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