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White Mountains Insurance Group, Ltd. Common Stock (WTM)

Shares Out (Basic)

2.41M

Quarterly · Period ending: Jun 30, 2026

WTM Shares Out (Basic)

Latest reported2.41Mperiod endingJun 30, 2026

Latest reported2.41Mperiod endingJun 30, 2026

WTM Quarterly Shares Out (Basic) (66.67M → 2.41M)

Quarterly shares out (basic)

High-resolution chart · PNG

WTM shares out (basic) history

Quarterly. Dates are reporting period ends; fiscal years can differ from calendar years.

White Mountains Insurance Group, Ltd. Common Stock Shares Out (Basic) — Quarterly
Period ending	Shares Out (Basic)
Jun 30, 2001	5,876,000
Mar 31, 2001	5,876,289
Dec 31, 2000	5,876,289
Sep 30, 2000	5,881,950
Jun 30, 2000	6,666,667
Mar 31, 2000	5,957,447
Dec 31, 1999	5,957,447
Sep 30, 1999	5,183,824
Jun 30, 1999	5,502,152
Mar 31, 1999	5,847,458
Dec 31, 1998	5,847,458
Sep 30, 1998	5,840,517
Jun 30, 1998	5,848,000
Mar 31, 1998	5,858,000
Dec 31, 1997	5,858,000
Sep 30, 1997	6,763,485
Jun 30, 1997	6,750,000
Mar 31, 1997	6,901,408
Dec 31, 1996	6,901,408
Sep 30, 1996	7,400,000
Jun 30, 1996	7,777,778
Mar 31, 1996	7,680,000
Dec 31, 1995	7,680,000
Sep 30, 1995	8,133,333
Jun 30, 1995	9,383,117
Mar 31, 1995	9,383,117
Dec 31, 1994	9,383,117
Oct 31, 1994	9,056,604
Jun 30, 1994	9,807,692
Mar 31, 1994	10,000,000
Dec 31, 1993	10,000,000
Sep 30, 1993	10,216,110
Jun 30, 1993	10,212,766
Mar 31, 1993	10,390,492
Dec 31, 1992	10,390,492
Sep 30, 1992	10,498,339
Jun 30, 1992	14,891,304
Mar 31, 1992	15,208,333
Dec 31, 1991	15,208,333
Sep 30, 1991	16,133,519
Jun 30, 1991	15,384,615
Mar 31, 1991	27,171,694
Dec 31, 1990	27,171,694
Sep 30, 1990	33,333,333
Jun 30, 1990	32,985,000
Mar 31, 1990	33,661,000
Dec 31, 1989	33,661,000
Sep 30, 1989	54,765,101
Jun 30, 1989	54,337,349
Mar 31, 1989	55,303,030
Dec 31, 1988	55,303,030
Sep 30, 1988	48,137,255
Jun 30, 1988	48,571,429
Mar 31, 1988	55,182,482
Dec 31, 1987	55,182,482
Sep 30, 1987	62,898,551
Jun 30, 1987	64,897,959
Mar 31, 1987	65,940,594
Dec 31, 1986	65,940,594
Sep 30, 1986	66,119,403
Jun 30, 1986	67,333,333
Mar 31, 1986	67,333,333
Dec 31, 1985	67,333,333
Sep 30, 1985	66,666,667

Data is provided for informational purposes only and does not constitute investment advice. Past performance is not indicative of future results.