WHITE MOUNTAINS INSURANCE GROUP, LTD Shares Outstanding
WHITE MOUNTAINS INSURANCE GROUP, LTD (WTM) had Shares Outstanding of 2.39 million shares as of 2026-06-30, per its 10-Q filed 2026-08-06.
Prices
us-gaap:CommonStockSharesOutstanding · last filed 2026-08-06
- 2026-06-30: Shares outstanding (split-adjusted) 2.39M shares; Shares authorized (split-adjusted) 50.00M shares.
- 2026-03-31: Shares outstanding (split-adjusted) 2.48M shares; Shares authorized (split-adjusted) 50.00M shares.
- 2025-12-31: Shares outstanding (split-adjusted) 2.48M shares; Shares authorized (split-adjusted) 50.00M shares.
- 2025-09-30: Shares outstanding (split-adjusted) 2.58M shares; Shares authorized (split-adjusted) 50.00M shares.
| Period end | Shares outstanding (split-adjusted) | Shares authorized (split-adjusted) |
|---|---|---|
| 2026-06-30 | 2.39M shares 10-Q · filed 2026-08-06 | 50.00M shares 10-Q · filed 2026-08-06 |
| 2026-03-31 | 2.48M shares 10-Q · filed 2026-05-06 | 50.00M shares 10-Q · filed 2026-05-06 |
| 2025-12-31 | 2.48M shares 10-Q · filed 2026-08-06 | 50.00M shares 10-Q · filed 2026-08-06 |
| 2025-09-30 | 2.58M shares 10-Q · filed 2025-11-06 | 50.00M shares 10-Q · filed 2025-11-06 |
| 2025-06-30 | 2.58M shares 10-Q · filed 2025-08-07 | 50.00M shares 10-Q · filed 2025-08-07 |
| 2025-03-31 | 2.57M shares 10-Q · filed 2025-05-07 | 50.00M shares 10-Q · filed 2025-05-07 |
| 2024-12-31 | 2.57M shares 10-K · filed 2026-02-27 | 50.00M shares 10-K · filed 2026-02-27 |
| 2024-09-30 | 2.57M shares 10-Q · filed 2024-11-06 | 50.00M shares 10-Q · filed 2024-11-06 |
| 2024-06-30 | 2.57M shares 10-Q · filed 2024-08-07 | 50.00M shares 10-Q · filed 2024-08-07 |
| 2024-03-31 | 2.57M shares 10-Q · filed 2024-05-09 | 50.00M shares 10-Q · filed 2024-05-09 |
| 2023-12-31 | 2.56M shares 10-K · filed 2025-02-28 | 50.00M shares 10-K · filed 2025-02-28 |
| 2023-09-30 | 2.56M shares 10-Q · filed 2023-11-06 | 50.00M shares 10-Q · filed 2023-11-06 |
| 2023-06-30 | 2.56M shares 10-Q · filed 2023-08-07 | 50.00M shares 10-Q · filed 2023-08-07 |
| 2023-03-31 | 2.56M shares 10-Q · filed 2023-05-09 | 50.00M shares 10-Q · filed 2023-05-09 |
| 2022-12-31 | 2.57M shares 10-K · filed 2024-02-26 | 50.00M shares 10-K · filed 2024-02-26 |
| 2022-09-30 | 2.58M shares 10-Q · filed 2022-11-07 | 50.00M shares 10-Q · filed 2022-11-07 |
| 2022-06-30 | 2.94M shares 10-Q · filed 2022-08-08 | 50.00M shares 10-Q · filed 2022-08-08 |
| 2022-03-31 | 2.99M shares 10-Q · filed 2022-05-06 | 50.00M shares 10-Q · filed 2022-05-06 |
| 2021-12-31 | 3.02M shares 10-K · filed 2023-02-27 | 50.00M shares 10-K · filed 2023-02-27 |
| 2021-09-30 | 3.03M shares 10-Q · filed 2021-11-08 | 50.00M shares 10-Q · filed 2021-11-08 |
| 2021-06-30 | 3.11M shares 10-Q · filed 2021-08-06 | 50.00M shares 10-Q · filed 2021-08-06 |
| 2021-03-31 | 3.11M shares 10-Q · filed 2021-05-10 | 50.00M shares 10-Q · filed 2021-05-10 |
| 2020-12-31 | 3.10M shares 10-K · filed 2022-02-28 | 50.00M shares 10-K · filed 2022-02-28 |
| 2020-09-30 | 3.10M shares 10-Q · filed 2020-11-06 | 50.00M shares 10-Q · filed 2020-11-06 |
| 2020-03-31 | 3.10M shares 10-Q · filed 2020-08-07 | 50.00M shares 10-Q · filed 2020-08-07 |
| 2019-12-31 | 3.19M shares 10-K · filed 2021-02-26 | 50.00M shares 10-K · filed 2021-02-26 |
| 2019-09-30 | 3.19M shares 10-Q · filed 2019-11-06 | 50.00M shares 10-Q · filed 2019-11-06 |
| 2019-06-30 | 3.19M shares 10-Q · filed 2019-08-06 | 50.00M shares 10-Q · filed 2019-08-06 |
| 2019-03-31 | 3.18M shares 10-Q · filed 2019-05-06 | 50.00M shares 10-Q · filed 2019-05-06 |
| 2018-12-31 | 3.17M shares 10-K · filed 2020-03-02 | 50.00M shares 10-K · filed 2020-03-02 |
| 2018-09-30 | 3.18M shares 10-Q · filed 2018-11-05 | 50.00M shares 10-Q · filed 2018-11-05 |
| 2018-06-30 | 3.18M shares 10-Q · filed 2018-08-07 | 50.00M shares 10-Q · filed 2018-08-07 |
| 2018-03-31 | 3.75M shares 10-Q · filed 2018-05-02 | 50.00M shares 10-Q · filed 2018-05-02 |
| 2017-12-31 | 3.75M shares 10-K · filed 2019-02-27 | 50.00M shares 10-K · filed 2019-02-27 |
| 2017-09-30 | 3.75M shares 10-Q · filed 2017-11-08 | 50.00M shares 10-Q · filed 2017-11-08 |
| 2017-06-30 | 4.57M shares 10-Q · filed 2017-08-04 | 50.00M shares 10-Q · filed 2017-08-04 |
| 2017-03-31 | 4.57M shares 10-Q · filed 2017-05-02 | 50.00M shares 10-Q · filed 2017-05-02 |
| 2016-12-31 | 4.56M shares 10-K · filed 2018-02-28 | 50.00M shares 10-K · filed 2018-02-28 |
| 2016-09-30 | 4.58M shares 10-Q · filed 2016-11-02 | 50.00M shares 10-Q · filed 2016-11-02 |
| 2016-06-30 | 4.96M shares 10-Q · filed 2016-08-03 | 50.00M shares 10-Q · filed 2016-08-03 |
| 2016-03-31 | 5.42M shares 10-Q · filed 2016-05-02 | 50.00M shares 10-Q · filed 2016-05-02 |
| 2015-12-31 | 5.62M shares 10-K · filed 2017-02-27 | 50.00M shares 10-K · filed 2017-02-27 |
| 2015-09-30 | 5.75M shares 10-Q · filed 2015-11-02 | 50.00M shares 10-Q · filed 2015-11-02 |
| 2015-06-30 | 5.96M shares 10-Q · filed 2015-08-03 | 50.00M shares 10-Q · filed 2015-08-03 |
| 2015-03-31 | 5.99M shares 10-Q · filed 2015-05-04 | 50.00M shares 10-Q · filed 2015-05-04 |
| 2014-12-31 | 5.99M shares 10-K · filed 2016-02-29 | 50.00M shares 10-K · filed 2016-02-29 |
| 2014-09-30 | 6.03M shares 10-Q · filed 2014-10-29 | 50.00M shares 10-Q · filed 2014-10-29 |
| 2014-06-30 | 6.15M shares 10-Q · filed 2014-07-29 | 50.00M shares 10-Q · filed 2014-07-29 |
| 2014-03-31 | 6.17M shares 10-Q · filed 2014-04-28 | 50.00M shares 10-Q · filed 2014-04-28 |
| 2013-12-31 | 6.18M shares 10-K · filed 2015-02-27 | 50.00M shares 10-K · filed 2015-02-27 |
| 2013-09-30 | 6.18M shares 10-Q · filed 2013-10-28 | 50.00M shares 10-Q · filed 2013-10-28 |
| 2013-06-30 | 6.18M shares 10-Q · filed 2013-07-30 | 50.00M shares 10-Q · filed 2013-07-30 |
| 2013-03-31 | 6.18M shares 10-Q · filed 2013-04-29 | 50.00M shares 10-Q · filed 2013-04-29 |
| 2012-12-31 | 6.29M shares 10-K · filed 2014-02-28 | 50.00M shares 10-K · filed 2014-02-28 |
| 2012-09-30 | 6.58M shares 10-Q · filed 2012-10-30 | 50.00M shares 10-Q · filed 2012-10-30 |
| 2012-06-30 | 6.63M shares 10-Q · filed 2012-07-27 | 50.00M shares 10-Q · filed 2012-07-27 |
| 2012-03-31 | 6.64M shares 10-Q · filed 2012-04-27 | 50.00M shares 10-Q · filed 2012-04-27 |
| 2011-12-31 | 7.58M shares 10-K · filed 2013-03-01 | 50.00M shares 10-K · filed 2013-03-01 |
| 2011-09-30 | 7.63M shares 10-Q · filed 2011-10-28 | 50.00M shares 10-Q · filed 2011-10-28 |
| 2011-06-30 | 7.96M shares 10-Q · filed 2011-07-29 | 50.00M shares 10-Q · filed 2011-07-29 |
| 2011-03-31 | 7.98M shares 10-Q · filed 2011-04-29 | 50.00M shares 10-Q · filed 2011-04-29 |
| 2010-12-31 | 8.19M shares 10-K · filed 2012-02-28 | 50.00M shares 10-K · filed 2012-02-28 |
| 2010-09-30 | 8.34M shares 10-Q · filed 2010-10-29 | 50.00M shares 10-Q · filed 2010-10-29 |
| 2010-06-30 | 8.53M shares 10-Q · filed 2010-07-30 | 50.00M shares 10-Q · filed 2010-07-30 |
| 2009-12-31 | 8.86M shares 10-K · filed 2011-02-28 | 50.00M shares 10-K · filed 2011-02-28 |
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