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WHITE MOUNTAINS INSURANCE GROUP LTD

WTM Net selling

CIK 0000776867 #1353 in the set updated 18 Sep 2026

Bought (12 mo)

$0.00

out of their own pocket, the only kind of buying there is

Sold (12 mo)

$10.59M

$0.00 on a plan · $0.00 straight out of an exercise

Sold at will

$10.59M

3 of 3 sales

Net

−$10.59M

−$10.59M against sales at will

By person

17 insiders · 3 transactions

47.1×

G. Manning Rountree holds 47.1 times base salary in stock. $28.31M of shares against $600.00K in salary for 2025.

Salary from the company's own proxy. The shares are what G. Manning Rountree last reported holding, valued at $2,050.00, the price Common Shares was last bought or sold at on the open market here, on 19 Dec 2025.

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Rountree George Manning

Chief Executive Officer

—

$10.25M (1)

−$10.25M

13,809

0.5786%

$28.31M

−24.3%

Gelston Philip A

Director

—

$338.00K (1)

−$338.00K

1,703

0.0714%

$3.49M

+7.6%

CAMPBELL REID TARLTON

Director

—

— (1)

$0.00

10,575

0.4431%

$21.68M

−31.1%

SEELIG ROBERT LAWRENCE

EVP & General Counsel

—

17,857

0.7482%

$36.61M

+3.8%

Caffrey Liam P

Chief Executive Officer

—

3,650

0.1529%

$7.48M

+85.3%

Hicks Weston M

Director

—

2,936

0.1230%

$6.02M

+15.8%

Harrison Giles E

President

—

2,675

0.1121%

$5.48M

+167.5%

Tanner David Allen

Director

—

2,012

0.0843%

$4.12M

+2.8%

CHOKSI MARY C

Director

—

1,993

0.0835%

$4.09M

+16.7%

Hildreth Michaela

MD & Chief Accounting Officer

—

1,825

0.0765%

$3.74M

+37.0%

Papamichael Michael A

Chief Financial Officer

—

1,200

0.0503%

$2.46M

+44.4%

Dillon Margaret

Director

—

1,080

0.0453%

$2.21M

+35.8%

SHANK SUZANNE F.

Director

—

1,006

0.0421%

$2.06M

+39.5%

Carlson Peter M

Director

—

852

0.0357%

$1.75M

+50.3%

Yi Steven

Director

—

525

0.0220%

$1.08M

+40.0%

Chu John

Director

—

335

0.0140%

$686.75K

+67.5%

Klar Stephen

Director

—

113

0.0047%

$231.65K

—

WHITE MOUNTAINS INSURANCE GROUP LTD

By person

Individual transactions

What was left out