WHITE MOUNTAINS INSURANCE GROUP LTD

PublicCIK: 776867
WTMNYSE
Location

HANOVER, NH

YI STEVEN

4
→MEDIAALPHA, INC.
Jun 18, 2026·2d ago
1 txn

YI STEVEN

144
→MEDIAALPHA, INC.
Jun 16, 2026·5d ago
-25

NONKO EUGENE

144
→MEDIAALPHA, INC.
Jun 16, 2026·5d ago
-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

SHANK SUZANNE F.

4
→WHITE MOUNTAINS INSURANCE GROUP LTD
May 22, 2026·May 22, 2026
1 txn

HICKS WESTON M

4
→WHITE MOUNTAINS INSURANCE GROUP LTD
May 22, 2026·May 22, 2026
1 txn

GELSTON PHILIP A

4
→WHITE MOUNTAINS INSURANCE GROUP LTD
May 22, 2026·May 22, 2026
1 txn

DILLON MARGARET

4
→WHITE MOUNTAINS INSURANCE GROUP LTD
May 22, 2026·May 22, 2026
1 txn

CHU JOHN

4
→WHITE MOUNTAINS INSURANCE GROUP LTD
May 22, 2026·May 22, 2026
1 txn

CHU JOHN

3
→WHITE MOUNTAINS INSURANCE GROUP LTD
May 22, 2026·May 22, 2026
1 txn

CHOKSI MARY C

4
→WHITE MOUNTAINS INSURANCE GROUP LTD
May 22, 2026·May 22, 2026
1 txn

CARLSON PETER M

4
→WHITE MOUNTAINS INSURANCE GROUP LTD
May 22, 2026·May 22, 2026
1 txn

CAMPBELL REID TARLTON

4
→WHITE MOUNTAINS INSURANCE GROUP LTD
May 22, 2026·May 22, 2026
2 txn

COYNE JEFFREY B

4
→MEDIAALPHA, INC.
May 19, 2026·May 19, 2026
5 txn

COYNE JEFFREY B

144
→MEDIAALPHA, INC.
May 15, 2026·May 15, 2026
+2

WHITE MOUNTAINS INSURANCE GROUP LTD

13F-HR

Holdings

May 12, 2026·May 12, 2026

SHANK SUZANNE F.

4
→CMS ENERGY CORP
May 11, 2026·May 11, 2026
1 txn

ARASU VENMAL (RAJI)

4
→MEDIAALPHA, INC.
May 7, 2026·May 7, 2026
1 txn

VRABECK KATHY P

4
→MEDIAALPHA, INC.
May 7, 2026·May 7, 2026
1 txn

YI STEVEN

4
→MEDIAALPHA, INC.
May 6, 2026·May 6, 2026
3 txn

YI STEVEN

4
→MEDIAALPHA, INC.
Apr 29, 2026·Apr 29, 2026
3 txn

YI STEVEN

4
→MEDIAALPHA, INC.
Apr 23, 2026·Apr 23, 2026
3 txn

YI STEVEN

144
→MEDIAALPHA, INC.
Apr 20, 2026·Apr 20, 2026
-40

YI STEVEN

4
→MEDIAALPHA, INC.
Apr 15, 2026·Apr 15, 2026
3 txn
Page 1 of 26 · 644 total
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