$GBIO: Generation Bio Co. - Common stock
2025-11-25 GBIO 2025-11-25 00:02:41 0.00 0.00 3.38% GBIO 2025-11-25 06:02:55 5.86 4.74 3.38% GBIO 2025-11-25 09:01:56 5.86 5.19 3.38% GBIO 2025-11-25 11:02:00 5.31 5.14 0.40% GBIO 2025-11-25 12:02:27 5.25 5.16 1.19% GBIO 2025-11-25 13:01:52 5.28 5.16 1.19% GBIO 2025-11-25 14:02:20 5.20 5.13 -0.20% GBIO 2025-11-25 15:01:51 5.20 5.16 0.00% GBIO 2025-11-25 16:02:25 5.30 5.22 1.59% GBIO 2025-11-25 17:01:56 6.69 4.90 1.59% GBIO 2025-11-25 18:02:09 5.86 4.90 1.54% GBIO 2025-11-25 21:05:21 0.00 0.00 1.54% 2025-11-26 GBIO 2025-11-26 06:02:20 5.86 4.58 1.54% GBIO 2025-11-26 07:01:45 5.25 4.58 1.54% GBIO 2025-11-26 11:01:52 5.32 5.16 0.58% GBIO 2025-11-26 12:02:13 5.30 5.21 0.58% GBIO 2025-11-26 13:02:10 5.30 5.22 0.97% GBIO 2025-11-26 14:02:21 5.34 5.31 1.54% GBIO 2025-11-26 15:01:52 5.40 5.30 2.12% GBIO 2025-11-26 16:02:20 5.40 5.28 1.74% GBIO 2025-11-26 17:01:55 0.00 4.96 0.97% GBIO 2025-11-26 18:02:27 5.86 4.96 0.95% GBIO 2025-11-26 21:05:07 0.00 0.00 0.95% 2025-11-27 GBIO 2025-11-27 19:01:56 5.86 4.96 0.95% GBIO 2025-11-27 21:03:49 0.00 0.00 0.95% 2025-11-28 GBIO 2025-11-28 06:02:24 5.86 4.71 0.95% GBIO 2025-11-28 09:01:49 5.86 4.75 0.95% GBIO 2025-11-28 10:02:15 5.30 4.75 0.95% GBIO 2025-11-28 11:01:52 5.45 5.21 0.00% GBIO 2025-11-28 12:02:13 5.40 5.23 -0.95% GBIO 2025-11-28 13:01:54 5.30 5.23 -1.14% GBIO 2025-11-28 14:02:20 5.40 5.20 0.76% GBIO 2025-11-28 15:01:56 5.40 5.20 0.75% GBIO 2025-11-28 18:02:10 0.00 0.00 0.75% 2025-12-01 GBIO 2025-12-01 06:02:17 5.86 4.75 0.75% GBIO 2025-12-01 10:02:17 5.43 4.75 0.75% GBIO 2025-12-01 11:01:48 5.40 5.26 -0.75% GBIO 2025-12-01 12:02:16 5.30 5.27 -0.75% GBIO 2025-12-01 13:01:54 5.29 5.25 -1.32% GBIO 2025-12-01 14:02:29 5.27 5.17 -1.51% GBIO 2025-12-01 15:01:52 5.25 5.15 -1.51% GBIO 2025-12-01 16:02:26 5.26 5.14 -3.02% GBIO 2025-12-01 17:01:56 5.30 5.03 -5.28% GBIO 2025-12-01 18:02:23 5.30 5.05 -5.25% GBIO 2025-12-01 21:04:44 0.00 0.00 -5.25% 2025-12-02 GBIO 2025-12-02 06:02:29 5.75 4.62 -5.25% GBIO 2025-12-02 11:01:52 5.28 5.17 0.94% GBIO 2025-12-02 13:02:16 5.18 5.05 1.69% GBIO 2025-12-02 14:01:46 5.16 5.08 1.50% GBIO 2025-12-02 15:02:19 5.19 5.05 1.50% GBIO 2025-12-02 16:01:53 5.17 5.12 2.44% GBIO 2025-12-02 17:02:18 5.28 5.05 0.00% GBIO 2025-12-02 19:02:32 5.28 5.15 2.18% GBIO 2025-12-02 21:07:32 0.00 0.00 2.18% 2025-12-03 GBIO 2025-12-03 06:01:50 5.75 4.62 2.18% GBIO 2025-12-03 10:01:44 5.75 4.90 2.18% GBIO 2025-12-03 11:02:19 5.29 5.05 2.18% GBIO 2025-12-03 12:01:43 5.29 5.08 4.55% GBIO 2025-12-03 13:02:12 5.29 5.16 2.57% GBIO 2025-12-03 14:01:50 5.19 5.12 2.57% GBIO 2025-12-03 15:02:27 5.29 5.15 3.17% GBIO 2025-12-03 16:01:53 5.32 5.19 4.55% GBIO 2025-12-03 17:02:33 5.24 5.16 2.57% GBIO 2025-12-03 18:02:05 5.24 5.16 3.96% GBIO 2025-12-03 21:08:42 0.00 0.00 3.96% 2025-12-04 GBIO 2025-12-04 06:02:04 5.69 4.62 3.96% GBIO 2025-12-04 09:02:37 5.20 5.05 -0.59% GBIO 2025-12-04 10:02:15 5.20 5.09 -0.59% GBIO 2025-12-04 11:07:07 5.18 5.05 -2.18% GBIO 2025-12-04 12:01:50 5.20 5.09 -0.79% GBIO 2025-12-04 13:05:38 5.42 5.21 0.99% GBIO 2025-12-04 14:01:59 5.35 5.20 1.98% GBIO 2025-12-04 15:02:26 5.35 5.27 0.99% GBIO 2025-12-04 16:02:33 5.30 5.16 0.99% GBIO 2025-12-04 17:02:13 5.30 5.05 -0.20% GBIO 2025-12-04 18:01:52 5.30 5.05 -0.19% GBIO 2025-12-04 21:08:39 0.00 0.00 -0.19% 2025-12-05 GBIO 2025-12-05 06:01:58 5.40 4.62 -0.19% GBIO 2025-12-05 07:02:32 5.40 5.22 -0.19% GBIO 2025-12-05 08:01:55 5.40 4.62 -0.19% GBIO 2025-12-05 11:02:28 5.30 5.16 1.53% GBIO 2025-12-05 12:01:50 5.30 5.21 1.53% GBIO 2025-12-05 13:02:18 5.30 5.23 1.53% GBIO 2025-12-05 14:01:50 5.29 5.23 1.53% GBIO 2025-12-05 15:02:16 5.29 5.23 0.38% GBIO 2025-12-05 16:02:12 5.40 5.28 1.72% GBIO 2025-12-05 17:02:21 6.80 5.16 2.29% GBIO 2025-12-05 18:01:45 5.42 5.16 2.30% GBIO 2025-12-05 21:05:31 0.00 0.00 2.30% 2025-12-08 GBIO 2025-12-08 06:02:13 6.33 4.63 2.30% GBIO 2025-12-08 08:02:31 6.18 4.96 2.30% GBIO 2025-12-08 10:02:24 5.42 4.73 2.30% GBIO 2025-12-08 11:01:42 5.50 5.36 3.26% GBIO 2025-12-08 12:02:19 5.50 5.31 1.53% GBIO 2025-12-08 13:02:12 5.49 5.38 3.07% GBIO 2025-12-08 14:02:37 5.48 5.42 2.49% GBIO 2025-12-08 15:02:19 5.37 5.20 -0.19% GBIO 2025-12-08 16:02:26 5.43 5.20 0.57% GBIO 2025-12-08 17:02:07 5.49 5.17 -0.77% GBIO 2025-12-08 18:02:41 5.49 5.17 -0.75% GBIO 2025-12-08 21:04:46 0.00 0.00 -0.75% 2025-12-09 GBIO 2025-12-09 06:02:30 6.33 4.71 -0.75% GBIO 2025-12-09 08:02:27 6.18 4.71 -0.75% GBIO 2025-12-09 10:03:16 7.29 3.71 -0.75% GBIO 2025-12-09 11:01:59 5.42 5.20 0.19% GBIO 2025-12-09 12:02:31 5.40 5.31 1.50% GBIO 2025-12-09 13:02:05 5.41 5.35 2.25% GBIO 2025-12-09 14:03:06 5.41 5.31 2.25% GBIO 2025-12-09 15:02:43 5.32 5.21 0.56% GBIO 2025-12-09 16:02:30 5.32 5.21 0.75% GBIO 2025-12-09 17:02:55 0.00 5.17 1.69% GBIO 2025-12-09 18:02:24 6.04 5.17 1.70% GBIO 2025-12-09 21:03:01 0.00 0.00 1.70% 2025-12-10 GBIO 2025-12-10 06:02:43 6.33 4.71 1.70% GBIO 2025-12-10 08:02:26 6.18 4.71 1.70% GBIO 2025-12-10 11:01:48 5.48 5.28 0.19% GBIO 2025-12-10 12:02:13 5.47 5.28 0.19% GBIO 2025-12-10 13:02:00 5.47 5.30 0.19% GBIO 2025-12-10 14:02:40 5.45 5.30 0.19% GBIO 2025-12-10 15:01:47 5.45 5.31 0.19% GBIO 2025-12-10 16:02:31 5.45 5.31 -1.13% GBIO 2025-12-10 17:01:44 5.61 0.00 2.46% GBIO 2025-12-10 18:02:44 5.61 5.47 2.42% GBIO 2025-12-10 21:03:22 0.00 0.00 2.42% GBIO 2025-12-10 22:05:17 5.61 5.47 2.42% 2025-12-11 GBIO 2025-12-11 06:02:23 6.08 4.73 2.42% GBIO 2025-12-11 10:02:35 6.08 5.00 2.42% GBIO 2025-12-11 11:02:17 5.52 5.30 -0.74% GBIO 2025-12-11 12:02:31 5.49 5.36 -0.74% GBIO 2025-12-11 13:02:01 5.48 5.39 -0.37% GBIO 2025-12-11 14:02:23 5.48 5.33 -2.23% GBIO 2025-12-11 15:02:00 5.48 5.35 -2.97% GBIO 2025-12-11 17:01:49 5.70 0.00 -2.23% GBIO 2025-12-11 18:03:24 5.70 4.71 -2.18% GBIO 2025-12-11 21:03:36 0.00 0.00 -2.18% 2025-12-12 GBIO 2025-12-12 06:02:26 6.08 4.71 -2.18% GBIO 2025-12-12 11:02:03 5.55 5.41 1.27% GBIO 2025-12-12 12:02:13 5.50 5.39 2.00% GBIO 2025-12-12 13:01:41 5.50 5.33 -0.54% GBIO 2025-12-12 15:01:48 5.49 5.40 1.09% GBIO 2025-12-12 16:02:36 5.47 5.31 0.36% GBIO 2025-12-12 17:01:42 5.50 5.07 0.91% GBIO 2025-12-12 18:02:15 5.50 5.07 0.93% GBIO 2025-12-12 21:02:57 0.00 0.00 0.93% 2025-12-15 GBIO 2025-12-15 06:02:17 6.08 4.71 0.93% GBIO 2025-12-15 11:01:47 5.47 5.30 -0.74% GBIO 2025-12-15 12:02:14 5.47 5.34 -0.74% GBIO 2025-12-15 13:01:42 5.47 5.30 -2.04% GBIO 2025-12-15 14:02:21 5.42 5.30 -1.30% GBIO 2025-12-15 15:01:56 5.39 5.30 -1.48% GBIO 2025-12-15 16:02:31 5.44 5.39 0.37% GBIO 2025-12-15 17:01:51 5.61 0.00 -0.74% GBIO 2025-12-15 18:00:51 8-K Sec report https://www.sec.gov/Archives/edgar/data/1733294/000110465925121219/0001104659-25-121219-index.htm 8-K - Generation Bio Co. (0001733294) (Filer) GBIO 2025-12-15 18:02:16 5.61 4.71 -0.74% GBIO 2025-12-15 19:01:52 5.40 5.20 -0.37% GBIO 2025-12-15 20:02:29 5.35 5.30 -1.29% GBIO 2025-12-15 21:03:39 0.00 0.00 -2.21% 2025-12-16 GBIO 2025-12-16 06:02:19 5.15 5.05 -4.24% GBIO 2025-12-16 07:01:50 5.25 5.12 -4.24% GBIO 2025-12-16 08:02:36 5.25 4.96 -4.24% GBIO 2025-12-16 09:01:52 5.35 5.29 -1.47% GBIO 2025-12-16 10:02:33 5.35 5.29 -1.66% GBIO 2025-12-16 11:01:48 5.35 5.30 -0.74% GBIO 2025-12-16 12:02:11 5.35 5.30 -0.92% GBIO 2025-12-16 13:01:42 5.40 5.38 0.00% GBIO 2025-12-16 14:02:13 5.37 5.30 -0.55% GBIO 2025-12-16 15:01:46 5.38 5.32 -0.55% GBIO 2025-12-16 16:02:14 5.35 5.31 -0.74% GBIO 2025-12-16 17:01:46 5.38 5.28 0.00% GBIO 2025-12-16 18:02:11 5.38 5.20 0.00% GBIO 2025-12-16 19:01:54 5.38 5.21 0.00% GBIO 2025-12-16 21:02:58 0.00 0.00 0.00% 2025-12-17 GBIO 2025-12-17 06:02:28 5.50 4.84 0.00% GBIO 2025-12-17 08:02:24 5.50 4.92 0.00% GBIO 2025-12-17 11:02:11 5.31 5.25 -1.48% GBIO 2025-12-17 12:02:22 5.39 5.34 0.00% GBIO 2025-12-17 13:01:47 5.34 5.31 -0.74% GBIO 2025-12-17 14:02:21 5.37 5.34 -0.19% GBIO 2025-12-17 15:01:53 5.45 5.40 0.56% GBIO 2025-12-17 16:02:30 5.44 5.36 0.56% GBIO 2025-12-17 17:02:12 5.50 5.20 0.56% GBIO 2025-12-17 21:03:57 0.00 0.00 0.56% 2025-12-18 GBIO 2025-12-18 06:02:19 5.93 4.76 0.56% GBIO 2025-12-18 08:02:21 5.33 5.20 0.56% GBIO 2025-12-18 11:01:53 5.40 5.35 -0.37% GBIO 2025-12-18 12:02:14 5.44 5.40 0.93% GBIO 2025-12-18 13:01:46 5.46 5.40 0.93% GBIO 2025-12-18 14:02:16 5.43 5.40 0.93% GBIO 2025-12-18 15:01:57 5.41 5.35 0.93% GBIO 2025-12-18 16:02:25 5.43 5.36 0.93% GBIO 2025-12-18 17:01:51 5.48 5.35 1.67% GBIO 2025-12-18 18:02:17 5.48 5.35 1.68% GBIO 2025-12-18 20:02:14 5.44 5.35 1.68% GBIO 2025-12-18 21:03:31 0.00 0.00 1.68% 2025-12-19 GBIO 2025-12-19 05:02:00 5.53 5.42 1.68% GBIO 2025-12-19 09:01:45 5.50 5.42 1.68% GBIO 2025-12-19 11:02:48 5.50 5.45 0.75% GBIO 2025-12-19 12:02:35 5.45 5.33 -1.12% GBIO 2025-12-19 14:02:36 5.43 5.33 -1.12% GBIO 2025-12-19 15:02:09 5.45 5.35 -0.75% GBIO 2025-12-19 16:02:21 5.52 5.45 0.93% GBIO 2025-12-19 17:03:12 5.55 5.41 1.68% GBIO 2025-12-19 18:02:14 5.55 5.41 1.65% GBIO 2025-12-19 21:03:53 0.00 0.00 1.65% 2025-12-22 GBIO 2025-12-22 06:02:24 6.02 4.84 1.65% GBIO 2025-12-22 07:01:49 6.02 5.21 1.65% GBIO 2025-12-22 08:02:25 5.55 5.21 1.65% GBIO 2025-12-22 09:01:51 5.60 5.21 1.65% GBIO 2025-12-22 10:02:15 5.60 5.30 1.65% GBIO 2025-12-22 11:01:46 5.60 5.47 0.00% GBIO 2025-12-22 12:02:19 5.53 5.46 -0.92% GBIO 2025-12-22 13:01:50 5.53 5.49 -0.18% GBIO 2025-12-22 14:02:34 5.60 5.52 0.18% GBIO 2025-12-22 15:01:53 5.60 5.54 0.92% GBIO 2025-12-22 16:02:29 5.60 5.56 0.55% GBIO 2025-12-22 17:01:54 5.65 5.30 -0.73% GBIO 2025-12-22 18:02:25 5.65 5.30 -0.72% GBIO 2025-12-22 21:03:16 0.00 0.00 -0.72% 2025-12-23 GBIO 2025-12-23 05:02:43 8.78 2.33 -0.72% GBIO 2025-12-23 06:02:12 6.13 4.84 -0.72% GBIO 2025-12-23 08:02:13 6.13 4.98 -0.72% GBIO 2025-12-23 11:01:48 5.53 5.45 -0.72% GBIO 2025-12-23 12:02:25 5.53 5.45 0.72% GBIO 2025-12-23 13:01:46 5.53 5.47 0.18% GBIO 2025-12-23 14:02:14 5.52 5.46 0.72% GBIO 2025-12-23 15:01:52 5.57 5.50 0.72% GBIO 2025-12-23 16:02:21 5.53 5.50 0.90% GBIO 2025-12-23 17:01:47 5.53 5.44 -0.36% GBIO 2025-12-23 18:02:30 5.53 5.31 -3.10% GBIO 2025-12-23 21:03:03 0.00 0.00 -3.10% 2025-12-24 GBIO 2025-12-24 06:02:17 6.00 4.84 -3.10% GBIO 2025-12-24 10:02:16 5.99 5.00 -3.10% GBIO 2025-12-24 11:01:56 5.70 5.48 2.37% GBIO 2025-12-24 12:02:12 5.56 5.47 1.64% GBIO 2025-12-24 13:01:45 5.57 5.53 1.64% GBIO 2025-12-24 14:02:13 5.65 5.00 1.82% GBIO 2025-12-24 15:01:47 5.65 5.00 1.83% GBIO 2025-12-24 18:02:07 0.00 0.00 1.83%