Insider Shareholders with Direct Ownership of White Mountains Insurance Group LTD (WTM)
This section provides a comprehensive overview of the insiders with direct ownership of White Mountains Insurance Group LTD (WTM). You can find detailed information about the size and nature of each insider's ownership stake, as well as the latest updates on their holdings.
WHITE MOUNTAINS INSURANCE GROUP LTD Insider List
| Insider | Adquired | Disposed | Held | # of Trades | Last Transaction |
|---|---|---|---|---|---|
|
Robert Lawrence Seelig
EVP & General Counsel |
9,425 | 12,274 | 17,907 $34.5 Million | 28 |
Jan 01, 2026
Reduced 2.17%
|
|
George Manning Rountree
Chief Executive Officer |
19,725 | 14,138 | 13,809 $26.6 Million | 17 |
Dec 19, 2025
Reduced 26.58%
|
|
Reid Tarlton Campbell
Director |
7,960 | 11,995 | 10,440 $20.1 Million | 22 |
Dec 19, 2025
Reduced 32.38%
|
|
Morgan W Davis
Director |
2,030 | 6,025 | 6,709 $12.9 Million | 12 |
Dec 28, 2022
Reduced 2.89%
|
|
Yves Brouillette
Director |
819 | 3,360 | 4,121 $7.93 Million | 4 |
May 23, 2019
Added 8.93%
|
|
Frank R Bazos
EVP and Head of M&A |
3,600 | 0 | 3,600 $6.93 Million | 2 |
Feb 27, 2020
Added 32.08%
|
|
Edith E Holiday
Director |
725 | 0 | 2,827 $5.44 Million | 3 |
May 21, 2020
Added 7.37%
|
|
Weston M Hicks
Director |
1,746 | 0 | 2,746 $5.29 Million | 5 |
May 22, 2025
Added 7.1%
|
|
Michaela Hildreth
MD & Chief Accounting Officer |
2,575 | 1,765 | 2,491 $4.79 Million | 16 |
Jan 01, 2026
Reduced 9.91%
|
|
David Allen Tanner
Director |
2,108 | 4 | 2,104 $4.05 Million | 10 |
Nov 10, 2025
Reduced 0.19%
|
|
Giles E Harrison
EVP & Chief Strategy Officer |
1,900 | 0 | 1,900 $3.66 Million | 2 |
Feb 26, 2025
Added 32.14%
|
|
Mary C Choksi
Director |
1,858 | 0 | 1,858 $3.58 Million | 9 |
May 22, 2025
Added 7.47%
|
|
Gary Charles Tolman
Director |
250 | 0 | 1,822 $3.51 Million | 1 |
May 24, 2018
Added 12.07%
|
|
Jess Brian Palmer
Chief Accounting Officer |
1,450 | 1,889 | 1,703 $3.28 Million | 12 |
Jan 01, 2021
Reduced 11.85%
|
|
Liam P Caffrey
Chief Executive Officer |
3,400 | 845 | 1,655 $3.19 Million | 5 |
Jan 01, 2026
Reduced 20.43%
|
|
Philip A Gelston
Director |
1,733 | 165 | 1,568 $3.02 Million | 10 |
Dec 16, 2025
Reduced 9.52%
|
|
Lowndes Andrew Smith
Director |
500 | 2,300 | 1,102 $2.12 Million | 7 |
Dec 10, 2019
Reduced 15.36%
|
|
Margaret Dillon
Director |
945 | 0 | 945 $1.82 Million | 5 |
May 22, 2025
Added 13.7%
|
|
Suzanne F. Shank
Director |
871 | 0 | 871 $1.68 Million | 5 |
May 22, 2025
Added 14.69%
|
|
Michael A Papamichael
Chief Financial Officer |
0 | 131 | 772 $1.49 Million | 1 |
Jan 01, 2026
Reduced 14.51%
|
|
Peter M Carlson
Director |
1,483 | 200 | 717 $1.38 Million | 9 |
May 22, 2025
Added 17.3%
|
|
Steven Yi
Director |
495 | 0 | 525 $1.01 Million | 3 |
May 22, 2025
Added 22.22%
|