StreetInsider.com News Articles

Form 4 WHITE MOUNTAINS INSURANC For: Aug 31 Filed by: Tanner David Allen

Mon, 31 Aug 2026 17:04:00 -0400

si-local-file:///var/storage/secattach/20260831/27006690.html

Form 4 WHITE MOUNTAINS INSURANC For: Aug 26 Filed by: Klar Stephen

Thu, 27 Aug 2026 15:46:00 -0400

si-local-file:///var/storage/secattach/20260827/26989573.html

Form 4 WHITE MOUNTAINS INSURANC For: Aug 26 Filed by: Klar Stephen

Thu, 27 Aug 2026 15:46:00 -0400

si-local-file:///var/storage/secattach/20260827/26989573.html

Form 3 WHITE MOUNTAINS INSURANC For: Aug 26 Filed by: Klar Stephen

Thu, 27 Aug 2026 15:40:00 -0400

si-local-file:///var/storage/secattach/20260827/26989491.html

Form 3 WHITE MOUNTAINS INSURANC For: Aug 26 Filed by: Klar Stephen

Thu, 27 Aug 2026 15:40:00 -0400

si-local-file:///var/storage/secattach/20260827/26989491.html

Form 8-K WHITE MOUNTAINS INSURANC For: Aug 26

Thu, 27 Aug 2026 08:12:00 -0400

si-local-file:///var/storage/secattach/20260827/26985218.html

Form 8-K WHITE MOUNTAINS INSURANC For: Aug 26

Thu, 27 Aug 2026 08:12:00 -0400

si-local-file:///var/storage/secattach/20260827/26985218.html

White Mountains Insurance Group elects Stephen Klar to its board

Thu, 27 Aug 2026 08:02:03 -0400

White Mountains Insurance Group, Ltd. (NYSE: WTM) has elected Stephen Klar as a director, according to a press release from the Bermuda-based financial services holding company.

Klar previously served as President and Managing Partner of Wellington Management Group LLP.

CEO Liam Caffrey said, "We are delighted to welcome Steve to our Board of Directors. His extensive experience in the financial services industry will greatly benefit our owners."

White Mountains is domiciled in Bermuda and trades on the New York Stock Exchange and the Bermuda Stock Exchange under the symbol "WTM" and "WTM.BH," respectively.

White Mountains Insurance Group elects Stephen Klar to its board

Thu, 27 Aug 2026 08:02:03 -0400

White Mountains Insurance Group, Ltd. (NYSE: WTM) has elected Stephen Klar as a director, according to a press release from the Bermuda-based financial services holding company.

Klar previously served as President and Managing Partner of Wellington Management Group LLP.

CEO Liam Caffrey said, "We are delighted to welcome Steve to our Board of Directors. His extensive experience in the financial services industry will greatly benefit our owners."

White Mountains is domiciled in Bermuda and trades on the New York Stock Exchange and the Bermuda Stock Exchange under the symbol "WTM" and "WTM.BH," respectively.

White Mountains Insurance Group elects Stephen Klar to its board

Thu, 27 Aug 2026 08:02:03 -0400

White Mountains Insurance Group, Ltd. (NYSE: WTM) has elected Stephen Klar as a director, according to a press release from the Bermuda-based financial services holding company.

Klar previously served as President and Managing Partner of Wellington Management Group LLP.

CEO Liam Caffrey said, "We are delighted to welcome Steve to our Board of Directors. His extensive experience in the financial services industry will greatly benefit our owners."

White Mountains is domiciled in Bermuda and trades on the New York Stock Exchange and the Bermuda Stock Exchange under the symbol "WTM" and "WTM.BH," respectively.

White Mountains Insurance Group elects Stephen Klar to its board

Thu, 27 Aug 2026 08:02:03 -0400

White Mountains Insurance Group, Ltd. (NYSE: WTM) has elected Stephen Klar as a director, according to a press release from the Bermuda-based financial services holding company.

Klar previously served as President and Managing Partner of Wellington Management Group LLP.

CEO Liam Caffrey said, "We are delighted to welcome Steve to our Board of Directors. His extensive experience in the financial services industry will greatly benefit our owners."

White Mountains is domiciled in Bermuda and trades on the New York Stock Exchange and the Bermuda Stock Exchange under the symbol "WTM" and "WTM.BH," respectively.

White Mountains Insurance Group elects Stephen Klar to its board

Thu, 27 Aug 2026 08:02:03 -0400

White Mountains Insurance Group, Ltd. (NYSE: WTM) has elected Stephen Klar as a director, according to a press release from the Bermuda-based financial services holding company.

Klar previously served as President and Managing Partner of Wellington Management Group LLP.

CEO Liam Caffrey said, "We are delighted to welcome Steve to our Board of Directors. His extensive experience in the financial services industry will greatly benefit our owners."

White Mountains is domiciled in Bermuda and trades on the New York Stock Exchange and the Bermuda Stock Exchange under the symbol "WTM" and "WTM.BH," respectively.

Stephen Klar Elected to the White Mountains Board

Thu, 27 Aug 2026 08:00:00 -0400

HAMILTON, Bermuda, Aug. 27, 2026 /PRNewswire/ -- The Board of Directors of White Mountains Insurance Group, Ltd. (NYSE: WTM) has elected Stephen Klar as a director of the Company.

Mr. Klar was formerly the President and a Managing Partner of Wellington Management Group LLP.

CEO Liam Caffrey said, "We are delighted to welcome Steve to our Board of Directors. His extensive experience in the financial services industry will greatly benefit our owners."

About White Mountains

White Mountains is a Bermuda-domiciled financial services holding company traded on the New York Stock Exchange and the Bermuda Stock Exchange

Stephen Klar Elected to the White Mountains Board

Thu, 27 Aug 2026 08:00:00 -0400

HAMILTON, Bermuda, Aug. 27, 2026 /PRNewswire/ -- The Board of Directors of White Mountains Insurance Group, Ltd. (NYSE: WTM) has elected Stephen Klar as a director of the Company.

Mr. Klar was formerly the President and a Managing Partner of Wellington Management Group LLP.

CEO Liam Caffrey said, "We are delighted to welcome Steve to our Board of Directors. His extensive experience in the financial services industry will greatly benefit our owners."

About White Mountains

White Mountains is a Bermuda-domiciled financial services holding company traded on the New York Stock Exchange and the Bermuda Stock Exchange

Stephen Klar Elected to the White Mountains Board

Thu, 27 Aug 2026 08:00:00 -0400

HAMILTON, Bermuda, Aug. 27, 2026 /PRNewswire/ -- The Board of Directors of White Mountains Insurance Group, Ltd. (NYSE: WTM) has elected Stephen Klar as a director of the Company.

Mr. Klar was formerly the President and a Managing Partner of Wellington Management Group LLP.

CEO Liam Caffrey said, "We are delighted to welcome Steve to our Board of Directors. His extensive experience in the financial services industry will greatly benefit our owners."

About White Mountains

White Mountains is a Bermuda-domiciled financial services holding company traded on the New York Stock Exchange and the Bermuda Stock Exchange

Stephen Klar Elected to the White Mountains Board

Thu, 27 Aug 2026 08:00:00 -0400

HAMILTON, Bermuda, Aug. 27, 2026 /PRNewswire/ -- The Board of Directors of White Mountains Insurance Group, Ltd. (NYSE: WTM) has elected Stephen Klar as a director of the Company.

Mr. Klar was formerly the President and a Managing Partner of Wellington Management Group LLP.

CEO Liam Caffrey said, "We are delighted to welcome Steve to our Board of Directors. His extensive experience in the financial services industry will greatly benefit our owners."

About White Mountains

White Mountains is a Bermuda-domiciled financial services holding company traded on the New York Stock Exchange and the Bermuda Stock Exchange

Stephen Klar Elected to the White Mountains Board

Thu, 27 Aug 2026 08:00:00 -0400

HAMILTON, Bermuda, Aug. 27, 2026 /PRNewswire/ -- The Board of Directors of White Mountains Insurance Group, Ltd. (NYSE: WTM) has elected Stephen Klar as a director of the Company.

Mr. Klar was formerly the President and a Managing Partner of Wellington Management Group LLP.

CEO Liam Caffrey said, "We are delighted to welcome Steve to our Board of Directors. His extensive experience in the financial services industry will greatly benefit our owners."

About White Mountains

White Mountains is a Bermuda-domiciled financial services holding company traded on the New York Stock Exchange and the Bermuda Stock Exchange

Stephen Klar Elected to the White Mountains Board

Thu, 27 Aug 2026 08:00:00 -0400

HAMILTON, Bermuda, Aug. 27, 2026 /PRNewswire/ -- The Board of Directors of White Mountains Insurance Group, Ltd. (NYSE: WTM) has elected Stephen Klar as a director of the Company.

Mr. Klar was formerly the President and a Managing Partner of Wellington Management Group LLP.

CEO Liam Caffrey said, "We are delighted to welcome Steve to our Board of Directors. His extensive experience in the financial services industry will greatly benefit our owners."

About White Mountains

White Mountains is a Bermuda-domiciled financial services holding company traded on the New York Stock Exchange and the Bermuda Stock Exchange

Stephen Klar Elected to the White Mountains Board

Thu, 27 Aug 2026 08:00:00 -0400

HAMILTON, Bermuda, Aug. 27, 2026 /PRNewswire/ -- The Board of Directors of White Mountains Insurance Group, Ltd. (NYSE: WTM) has elected Stephen Klar as a director of the Company.

Mr. Klar was formerly the President and a Managing Partner of Wellington Management Group LLP.

CEO Liam Caffrey said, "We are delighted to welcome Steve to our Board of Directors. His extensive experience in the financial services industry will greatly benefit our owners."

About White Mountains

White Mountains is a Bermuda-domiciled financial services holding company traded on the New York Stock Exchange and the Bermuda Stock Exchange

Stephen Klar Elected to the White Mountains Board

Thu, 27 Aug 2026 08:00:00 -0400

HAMILTON, Bermuda, Aug. 27, 2026 /PRNewswire/ -- The Board of Directors of White Mountains Insurance Group, Ltd. (NYSE: WTM) has elected Stephen Klar as a director of the Company.

Mr. Klar was formerly the President and a Managing Partner of Wellington Management Group LLP.

CEO Liam Caffrey said, "We are delighted to welcome Steve to our Board of Directors. His extensive experience in the financial services industry will greatly benefit our owners."

About White Mountains

White Mountains is a Bermuda-domiciled financial services holding company traded on the New York Stock Exchange and the Bermuda Stock Exchange

Stephen Klar Elected to the White Mountains Board

Thu, 27 Aug 2026 08:00:00 -0400

HAMILTON, Bermuda, Aug. 27, 2026 /PRNewswire/ -- The Board of Directors of White Mountains Insurance Group, Ltd. (NYSE: WTM) has elected Stephen Klar as a director of the Company.

Mr. Klar was formerly the President and a Managing Partner of Wellington Management Group LLP.

CEO Liam Caffrey said, "We are delighted to welcome Steve to our Board of Directors. His extensive experience in the financial services industry will greatly benefit our owners."

About White Mountains

White Mountains is a Bermuda-domiciled financial services holding company traded on the New York Stock Exchange and the Bermuda Stock Exchange

Stephen Klar Elected to the White Mountains Board

Thu, 27 Aug 2026 08:00:00 -0400

HAMILTON, Bermuda, Aug. 27, 2026 /PRNewswire/ -- The Board of Directors of White Mountains Insurance Group, Ltd. (NYSE: WTM) has elected Stephen Klar as a director of the Company.

Mr. Klar was formerly the President and a Managing Partner of Wellington Management Group LLP.

CEO Liam Caffrey said, "We are delighted to welcome Steve to our Board of Directors. His extensive experience in the financial services industry will greatly benefit our owners."

About White Mountains

White Mountains is a Bermuda-domiciled financial services holding company traded on the New York Stock Exchange and the Bermuda Stock Exchange

Form N-PX WHITE MOUNTAINS INSURANC For: Jun 30

Wed, 26 Aug 2026 16:13:00 -0400

si-local-file:///var/storage/secattach/20260826/26981888.html

Form N-PX WHITE MOUNTAINS INSURANC For: Jun 30

Wed, 26 Aug 2026 16:13:00 -0400

si-local-file:///var/storage/secattach/20260826/26981888.html

Form 13F-HR WHITE MOUNTAINS INSURANC For: Jun 30

Wed, 12 Aug 2026 16:22:00 -0400

si-local-file:///var/storage/secattach/20260812/26913271.html