$SG: Sirius International Insurance Group, Ltd. - Common Share
2025-11-19 SG 2025-11-19 13:03:19 6.05 6.04 1.75% SG 2025-11-19 14:02:51 6.08 6.07 2.27% SG 2025-11-19 15:03:20 6.00 5.99 0.87% SG 2025-11-19 16:02:56 6.02 6.01 1.05% SG 2025-11-19 17:03:11 6.09 5.97 1.75% SG 2025-11-19 18:02:51 6.09 6.01 1.68% SG 2025-11-19 19:03:28 6.09 6.04 2.18% SG 2025-11-19 20:03:08 6.09 6.04 1.51% SG 2025-11-19 21:10:52 0.00 0.00 -0.17% 2025-11-20 SG 2025-11-20 05:03:10 6.16 5.82 -0.17% SG 2025-11-20 06:02:47 6.13 5.82 1.01% SG 2025-11-20 08:02:51 6.12 6.05 0.84% SG 2025-11-20 09:03:22 6.13 5.82 0.84% SG 2025-11-20 10:02:53 6.16 6.11 1.85% SG 2025-11-20 11:03:20 6.37 6.36 5.55% SG 2025-11-20 13:03:25 6.34 6.33 5.04% SG 2025-11-20 14:02:56 6.28 6.27 4.03% SG 2025-11-20 15:03:24 6.19 6.18 2.52% SG 2025-11-20 17:03:26 6.15 6.05 0.34% SG 2025-11-20 18:03:17 6.10 6.05 1.65% SG 2025-11-20 21:08:55 0.00 0.00 1.65% 2025-11-21 SG 2025-11-21 05:03:32 6.10 6.02 1.65% SG 2025-11-21 06:03:22 6.14 6.03 0.33% SG 2025-11-21 07:03:29 6.14 6.02 0.00% SG 2025-11-21 08:03:05 6.09 6.02 0.00% SG 2025-11-21 09:03:27 6.14 6.03 0.00% SG 2025-11-21 10:04:08 6.14 6.03 0.50% SG 2025-11-21 11:03:17 6.29 6.28 4.13% SG 2025-11-21 12:02:55 6.35 6.34 5.12% SG 2025-11-21 13:03:27 6.62 6.61 9.42% SG 2025-11-21 14:02:56 6.60 6.59 8.93% SG 2025-11-21 15:03:36 6.66 6.65 10.25% SG 2025-11-21 16:03:07 6.74 6.73 11.57% SG 2025-11-21 17:03:22 6.81 6.69 11.57% SG 2025-11-21 18:02:55 6.75 6.69 11.74% SG 2025-11-21 21:14:41 0.00 0.00 11.74% 2025-11-24 SG 2025-11-24 05:02:45 6.83 6.64 0.33% SG 2025-11-24 06:03:36 6.83 6.64 1.49% SG 2025-11-24 09:02:44 6.77 6.64 1.49% SG 2025-11-24 10:03:26 6.76 6.75 0.33% SG 2025-11-24 11:02:43 6.62 6.61 -1.98% SG 2025-11-24 12:03:28 6.79 6.78 0.83% SG 2025-11-24 13:02:43 6.66 6.65 -1.32% SG 2025-11-24 14:06:32 6.62 6.61 -1.98% SG 2025-11-24 15:02:50 6.51 6.50 -3.97% SG 2025-11-24 16:05:17 6.47 6.46 -4.63% SG 2025-11-24 17:03:06 6.55 6.43 -4.13% SG 2025-11-24 18:03:31 6.55 6.43 -3.71% SG 2025-11-24 21:06:14 0.00 0.00 -3.71% 2025-11-25 SG 2025-11-25 05:02:48 6.53 6.42 -3.71% SG 2025-11-25 06:04:06 6.83 6.42 -3.71% SG 2025-11-25 08:03:36 6.53 6.42 -3.71% SG 2025-11-25 09:02:46 6.83 6.42 -3.71% SG 2025-11-25 10:03:36 6.53 6.42 -3.71% SG 2025-11-25 11:02:49 6.88 6.86 5.93% SG 2025-11-25 12:03:39 6.85 6.84 5.64% SG 2025-11-25 13:02:42 6.91 6.90 6.38% SG 2025-11-25 14:03:32 6.84 6.83 5.34% SG 2025-11-25 15:02:41 6.85 6.84 5.64% SG 2025-11-25 16:03:36 6.88 6.87 5.93% SG 2025-11-25 17:02:44 6.90 6.80 5.79% SG 2025-11-25 18:03:18 6.90 6.65 6.02% SG 2025-11-25 21:08:32 0.00 0.00 6.48% 2025-11-26 SG 2025-11-26 05:02:40 6.99 6.42 6.48% SG 2025-11-26 06:03:33 6.99 6.80 6.48% SG 2025-11-26 08:03:32 6.92 6.80 6.48% SG 2025-11-26 09:02:40 6.92 6.80 0.77% SG 2025-11-26 10:03:30 6.92 6.62 0.00% SG 2025-11-26 11:02:42 6.83 6.82 -0.62% SG 2025-11-26 12:03:25 6.72 6.71 -2.16% SG 2025-11-26 13:02:59 6.71 6.70 -2.31% SG 2025-11-26 14:03:32 6.69 6.68 -2.47% SG 2025-11-26 15:02:42 6.66 6.65 -3.09% SG 2025-11-26 16:03:31 6.64 6.63 -3.24% SG 2025-11-26 17:02:42 6.69 6.61 -3.24% SG 2025-11-26 18:03:37 6.69 6.60 -2.62% SG 2025-11-26 19:03:05 6.70 6.60 -2.62% SG 2025-11-26 21:08:52 0.00 0.00 -2.62% 2025-11-27 SG 2025-11-27 19:02:46 6.70 6.60 -2.62% SG 2025-11-27 21:06:36 0.00 0.00 -2.62% 2025-11-28 SG 2025-11-28 05:02:46 6.99 6.42 -2.62% SG 2025-11-28 07:02:39 6.99 6.42 0.29% SG 2025-11-28 08:03:26 6.70 6.63 0.44% SG 2025-11-28 09:02:34 6.75 6.63 0.44% SG 2025-11-28 10:03:29 6.72 6.61 0.00% SG 2025-11-28 11:02:39 6.61 6.60 -0.15% SG 2025-11-28 12:03:26 6.53 6.52 -1.31% SG 2025-11-28 13:02:42 6.61 6.60 -0.15% SG 2025-11-28 14:03:31 6.55 6.43 -1.75% SG 2025-11-28 15:02:41 6.55 6.43 -1.81% SG 2025-11-28 18:03:19 0.00 0.00 -1.81% 2025-12-01 SG 2025-12-01 05:02:35 6.50 6.42 -1.81% SG 2025-12-01 06:03:28 6.99 6.41 -1.81% SG 2025-12-01 08:03:27 6.50 6.39 -1.21% SG 2025-12-01 09:02:36 6.47 6.39 -1.21% SG 2025-12-01 10:03:28 6.44 6.39 -0.60% SG 2025-12-01 11:02:35 6.34 6.33 -2.41% SG 2025-12-01 12:03:27 6.33 6.32 -2.41% SG 2025-12-01 13:02:39 6.30 6.29 -2.87% SG 2025-12-01 14:03:40 6.37 6.36 -1.81% SG 2025-12-01 15:02:38 6.35 6.34 -2.26% SG 2025-12-01 16:03:37 6.50 6.49 0.15% SG 2025-12-01 17:02:44 6.49 6.37 -1.06% SG 2025-12-01 18:03:31 6.49 6.43 -1.08% SG 2025-12-01 20:03:26 6.49 6.37 -0.46% SG 2025-12-01 21:07:41 0.00 0.00 -0.46% 2025-12-02 SG 2025-12-02 05:02:31 6.45 6.10 -0.46% SG 2025-12-02 06:03:40 6.45 6.10 0.62% SG 2025-12-02 07:02:59 6.45 6.10 0.77% SG 2025-12-02 08:03:37 6.49 6.40 0.77% SG 2025-12-02 09:02:38 7.00 6.45 0.77% SG 2025-12-02 10:03:33 7.04 6.40 0.77% SG 2025-12-02 11:02:37 6.50 6.49 1.39% SG 2025-12-02 12:04:44 6.57 6.56 2.62% SG 2025-12-02 13:03:28 6.46 6.45 0.77% SG 2025-12-02 14:02:36 6.62 6.61 3.24% SG 2025-12-02 15:03:29 6.68 6.67 4.16% SG 2025-12-02 16:02:43 6.77 6.76 5.70% SG 2025-12-02 17:03:26 6.74 6.62 3.39% SG 2025-12-02 18:02:33 6.72 6.63 4.68% SG 2025-12-02 19:03:48 6.72 6.60 3.43% SG 2025-12-02 21:13:35 0.00 0.00 3.43% 2025-12-03 SG 2025-12-03 05:03:33 6.69 6.60 3.43% SG 2025-12-03 06:02:40 6.99 6.10 3.43% SG 2025-12-03 08:02:46 6.72 6.60 3.43% SG 2025-12-03 09:03:33 6.99 6.69 3.43% SG 2025-12-03 10:02:35 6.74 6.12 1.40% SG 2025-12-03 11:03:30 6.72 6.71 1.40% SG 2025-12-03 12:02:34 6.74 6.73 1.72% SG 2025-12-03 13:03:23 6.75 6.74 1.87% SG 2025-12-03 14:02:40 6.81 6.80 2.81% SG 2025-12-03 15:03:37 6.82 6.81 2.96% SG 2025-12-03 16:02:43 6.89 6.88 4.06% SG 2025-12-03 17:03:42 6.95 6.85 3.59% SG 2025-12-03 18:02:53 6.95 6.83 3.31% SG 2025-12-03 21:14:15 0.00 0.00 3.31% 2025-12-04 SG 2025-12-04 05:03:39 7.08 6.10 3.31% SG 2025-12-04 06:02:51 6.99 6.31 3.31% SG 2025-12-04 08:02:54 6.99 6.92 -0.75% SG 2025-12-04 09:03:51 6.90 6.86 -0.60% SG 2025-12-04 10:03:01 6.95 6.86 -0.60% SG 2025-12-04 11:08:20 6.80 6.79 -2.41% SG 2025-12-04 12:02:36 6.86 6.85 -1.20% SG 2025-12-04 13:06:52 6.91 6.90 -0.60% SG 2025-12-04 14:02:45 6.99 6.98 0.75% SG 2025-12-04 15:03:36 6.95 6.94 0.00% SG 2025-12-04 16:03:20 6.88 6.87 -1.05% SG 2025-12-04 17:03:21 6.90 6.83 -0.60% SG 2025-12-04 18:02:36 6.95 6.88 -0.75% SG 2025-12-04 19:03:34 6.94 6.88 -0.75% SG 2025-12-04 20:02:40 6.94 6.90 -0.75% SG 2025-12-04 21:14:33 0.00 0.00 -0.75% 2025-12-05 SG 2025-12-05 05:03:50 6.97 6.86 -0.75% SG 2025-12-05 06:02:44 7.08 6.30 -0.75% SG 2025-12-05 07:03:43 7.08 6.70 -0.75% SG 2025-12-05 08:02:41 6.96 6.85 -0.75% SG 2025-12-05 09:03:30 7.08 6.70 -0.75% SG 2025-12-05 11:03:39 6.88 6.86 -0.45% SG 2025-12-05 12:02:37 6.86 6.85 -0.60% SG 2025-12-05 13:03:28 6.78 6.77 -1.81% SG 2025-12-05 14:02:37 6.81 6.80 -1.51% SG 2025-12-05 15:03:27 6.79 6.78 -1.66% SG 2025-12-05 16:02:59 6.80 6.79 -1.51% SG 2025-12-05 17:03:29 6.75 6.68 -3.01% SG 2025-12-05 18:02:30 6.72 6.68 -2.71% SG 2025-12-05 19:03:47 6.79 6.70 -2.71% SG 2025-12-05 21:09:26 0.00 0.00 -3.01% 2025-12-08 SG 2025-12-08 05:02:45 7.08 6.10 -3.01% SG 2025-12-08 06:03:24 7.08 6.11 -3.01% SG 2025-12-08 07:02:33 7.08 6.11 0.15% SG 2025-12-08 08:03:42 7.08 6.60 0.15% SG 2025-12-08 09:10:30 8-K Sec report https://www.sec.gov/Archives/edgar/data/776867/000162828025055702/0001628280-25-055702-index.htm 8-K - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Filer) SG 2025-12-08 10:03:38 7.00 6.60 0.15% SG 2025-12-08 11:02:32 6.48 6.47 -3.31% SG 2025-12-08 12:03:31 6.44 6.43 -3.92% SG 2025-12-08 13:03:01 6.46 6.45 -3.46% SG 2025-12-08 14:03:48 6.40 6.39 -4.37% SG 2025-12-08 15:03:08 6.43 6.42 -3.92% SG 2025-12-08 16:03:38 6.47 6.46 -3.31% SG 2025-12-08 17:02:54 6.57 6.49 -2.41% SG 2025-12-08 18:03:50 6.55 6.47 -2.99% SG 2025-12-08 19:03:11 6.58 6.47 -2.99% SG 2025-12-08 21:07:29 0.00 0.00 -2.99% 2025-12-09 SG 2025-12-09 05:02:52 7.08 6.10 -2.99% SG 2025-12-09 10:04:29 7.08 6.10 0.45% SG 2025-12-09 11:02:48 6.71 6.70 2.99% SG 2025-12-09 12:03:43 6.78 6.77 4.19% SG 2025-12-09 13:02:55 6.88 6.87 5.53% SG 2025-12-09 14:04:18 6.90 6.89 5.98% SG 2025-12-09 15:03:33 6.91 6.90 6.13% SG 2025-12-09 16:03:41 6.96 6.95 6.88% SG 2025-12-09 17:03:43 6.99 6.87 5.68% SG 2025-12-09 18:03:33 6.96 6.87 6.45% SG 2025-12-09 19:03:52 6.96 6.87 6.91% SG 2025-12-09 21:04:42 0.00 0.00 6.91% 2025-12-10 SG 2025-12-10 05:02:55 6.96 6.84 6.91% SG 2025-12-10 06:03:54 7.08 6.28 6.91% SG 2025-12-10 09:02:43 7.08 6.53 6.91% SG 2025-12-10 10:03:37 7.08 6.84 6.91% SG 2025-12-10 11:02:37 6.96 6.95 0.92% SG 2025-12-10 12:03:26 6.80 6.79 -1.54% SG 2025-12-10 13:02:49 6.74 6.73 -2.46% SG 2025-12-10 14:03:51 6.75 6.74 -2.30% SG 2025-12-10 15:02:36 6.77 6.75 -2.30% SG 2025-12-10 16:03:43 6.90 6.89 0.00% SG 2025-12-10 17:02:32 7.04 6.92 1.54% SG 2025-12-10 18:03:52 7.00 6.91 0.29% SG 2025-12-10 20:03:38 7.00 6.95 0.29% SG 2025-12-10 21:05:59 0.00 0.00 0.29% SG 2025-12-10 22:08:31 7.00 6.95 0.29% 2025-12-11 SG 2025-12-11 05:02:42 7.02 6.84 0.29% SG 2025-12-11 06:03:33 7.08 6.72 0.29% SG 2025-12-11 07:02:35 7.08 6.92 0.29% SG 2025-12-11 08:03:34 7.08 6.93 0.29% SG 2025-12-11 09:02:33 7.08 6.94 0.29% SG 2025-12-11 10:03:46 7.08 6.96 0.29% SG 2025-12-11 11:03:04 7.18 7.17 2.61% SG 2025-12-11 12:03:40 7.22 7.21 3.19% SG 2025-12-11 13:02:49 7.30 7.29 4.35% SG 2025-12-11 14:03:31 7.33 7.32 4.78% SG 2025-12-11 15:02:47 7.30 7.29 4.35% SG 2025-12-11 16:03:36 7.24 7.23 3.62% SG 2025-12-11 17:02:34 7.25 7.15 2.90% SG 2025-12-11 18:04:28 7.25 7.13 2.86% SG 2025-12-11 20:03:16 7.25 7.13 3.57% SG 2025-12-11 21:05:29 0.00 0.00 3.57% 2025-12-12 SG 2025-12-12 05:02:28 7.27 6.10 3.57% SG 2025-12-12 06:03:34 7.45 7.20 3.57% SG 2025-12-12 07:02:43 7.45 7.21 3.57% SG 2025-12-12 09:02:37 7.45 7.21 0.29% SG 2025-12-12 10:04:16 7.45 7.20 0.43% SG 2025-12-12 11:04:01 7.23 7.22 0.71% SG 2025-12-12 12:03:22 7.25 7.24 0.86% SG 2025-12-12 13:02:29 7.28 7.26 1.29% SG 2025-12-12 14:03:27 7.32 7.31 1.86% SG 2025-12-12 15:02:35 7.43 7.42 3.29% SG 2025-12-12 16:03:44 7.36 7.35 2.43% SG 2025-12-12 17:02:27 7.37 7.25 1.29% SG 2025-12-12 18:03:20 7.35 7.22 0.83% SG 2025-12-12 21:04:41 0.00 0.00 0.83% 2025-12-15 SG 2025-12-15 05:02:31 7.45 7.22 0.83% SG 2025-12-15 06:03:26 7.45 7.30 0.83% SG 2025-12-15 07:02:34 7.45 7.20 1.25% SG 2025-12-15 08:03:28 7.43 7.40 2.09% SG 2025-12-15 09:02:35 7.44 7.34 2.09% SG 2025-12-15 10:03:33 7.40 7.28 0.97% SG 2025-12-15 11:02:32 7.25 7.24 -0.28% SG 2025-12-15 12:03:23 7.10 7.09 -2.09% SG 2025-12-15 13:02:26 7.16 7.15 -1.25% SG 2025-12-15 14:03:30 7.20 7.19 -0.83% SG 2025-12-15 15:02:40 7.23 7.22 -0.28% SG 2025-12-15 16:03:39 7.26 7.25 0.00% SG 2025-12-15 17:02:34 7.30 7.18 0.00% SG 2025-12-15 18:03:20 7.30 6.62 0.00% SG 2025-12-15 20:03:35 7.24 6.62 0.00% SG 2025-12-15 21:05:23 0.00 0.00 0.00% 2025-12-16 SG 2025-12-16 05:02:38 7.58 7.05 0.00% SG 2025-12-16 06:03:27 7.24 7.05 0.00% SG 2025-12-16 08:03:45 7.29 7.19 -0.14% SG 2025-12-16 09:02:40 7.58 7.05 -0.14% SG 2025-12-16 10:03:45 7.58 7.20 -0.14% SG 2025-12-16 11:02:34 7.25 7.24 0.00% SG 2025-12-16 12:03:20 7.27 7.26 0.14% SG 2025-12-16 13:02:28 7.23 7.22 -0.14% SG 2025-12-16 14:03:21 7.15 7.14 -1.38% SG 2025-12-16 15:02:32 7.09 7.08 -2.20% SG 2025-12-16 16:03:22 6.95 6.94 -3.99% SG 2025-12-16 17:02:32 6.98 6.90 -4.55% SG 2025-12-16 18:03:15 6.95 6.89 -4.14% SG 2025-12-16 20:03:21 7.54 6.89 -4.14% SG 2025-12-16 21:04:43 0.00 0.00 -4.14% 2025-12-17 SG 2025-12-17 05:02:41 7.58 6.10 -4.14% SG 2025-12-17 06:03:38 7.29 6.67 -2.90% SG 2025-12-17 07:02:42 6.73 6.61 -2.76% SG 2025-12-17 08:03:32 6.73 6.61 -2.62% SG 2025-12-17 09:02:38 6.77 6.65 -2.21% SG 2025-12-17 10:03:23 6.77 6.71 -2.21% SG 2025-12-17 11:02:56 7.02 7.01 1.24% SG 2025-12-17 12:03:33 7.05 7.04 1.79% SG 2025-12-17 13:02:31 7.00 6.99 1.24% SG 2025-12-17 14:03:29 7.02 7.01 1.66% SG 2025-12-17 15:02:36 7.03 7.01 1.79% SG 2025-12-17 16:03:39 6.93 6.92 0.28% SG 2025-12-17 17:02:55 6.89 6.77 -1.52% SG 2025-12-17 18:03:22 6.89 6.77 -1.74% SG 2025-12-17 21:05:24 0.00 0.00 -1.74% 2025-12-18 SG 2025-12-18 05:02:36 6.91 6.10 -1.74% SG 2025-12-18 06:03:28 6.91 6.31 -1.74% SG 2025-12-18 08:03:29 6.91 6.31 1.74% SG 2025-12-18 10:03:23 6.91 6.31 1.59% SG 2025-12-18 11:02:37 6.96 6.95 2.46% SG 2025-12-18 12:03:26 7.02 7.01 3.47% SG 2025-12-18 13:02:30 6.91 6.90 1.74% SG 2025-12-18 14:03:24 6.98 6.97 2.89% SG 2025-12-18 15:02:40 6.99 6.98 3.04% SG 2025-12-18 16:03:33 7.18 7.17 5.50% SG 2025-12-18 17:02:34 7.15 7.03 4.20% SG 2025-12-18 18:03:22 7.11 7.03 4.27% SG 2025-12-18 19:02:56 7.10 7.05 4.27% SG 2025-12-18 20:03:19 7.09 7.05 4.42% SG 2025-12-18 21:05:36 0.00 0.00 4.42% 2025-12-19 SG 2025-12-19 05:02:44 7.58 6.10 4.42% SG 2025-12-19 06:03:23 7.43 6.17 4.42% SG 2025-12-19 08:03:20 7.43 6.42 4.42% SG 2025-12-19 10:03:24 7.43 6.42 0.88% SG 2025-12-19 11:03:33 7.16 7.15 1.62% SG 2025-12-19 12:03:44 6.94 6.93 -1.77%