$MRSN: Mersana Therapeutics, Inc. - Common Stock
2025-06-18 MRSN 2025-06-18 08:02:18 0.40 0.35 7.89% MRSN 2025-06-18 10:02:18 0.36 0.35 2.63% MRSN 2025-06-18 11:01:47 0.37 0.36 5.26% MRSN 2025-06-18 12:02:14 0.36 0.35 5.26% MRSN 2025-06-18 13:01:41 0.36 0.35 2.63% MRSN 2025-06-18 17:01:42 0.38 0.35 2.86% MRSN 2025-06-18 19:01:45 0.37 0.35 2.86% MRSN 2025-06-18 20:02:19 0.00 0.00 2.86% 2025-06-20 MRSN 2025-06-20 04:02:13 0.38 0.00 2.86% MRSN 2025-06-20 05:01:35 0.38 0.35 2.86% MRSN 2025-06-20 10:02:18 0.36 0.35 0.00% MRSN 2025-06-20 11:01:41 0.35 0.34 0.00% MRSN 2025-06-20 12:02:14 0.36 0.35 2.86% MRSN 2025-06-20 15:01:38 0.37 0.36 5.71% MRSN 2025-06-20 16:12:12 0.38 0.34 5.71% MRSN 2025-06-20 18:13:44 0.39 0.34 5.56% MRSN 2025-06-20 20:02:13 0.00 0.00 5.56% 2025-06-23 MRSN 2025-06-23 05:01:37 0.40 0.31 5.56% MRSN 2025-06-23 07:01:39 0.40 0.36 5.56% MRSN 2025-06-23 09:08:00 0.38 0.34 2.78% MRSN 2025-06-23 10:03:51 0.35 0.34 -2.78% MRSN 2025-06-23 11:02:03 0.36 0.34 -2.78% MRSN 2025-06-23 12:01:53 0.35 0.34 -2.78% MRSN 2025-06-23 13:02:03 0.34 0.33 -5.56% MRSN 2025-06-23 15:01:59 0.35 0.34 -2.78% MRSN 2025-06-23 16:01:57 0.37 0.33 -2.78% MRSN 2025-06-23 17:01:59 0.37 0.33 -2.70% MRSN 2025-06-23 18:01:54 0.37 0.34 -2.70% MRSN 2025-06-23 20:01:52 0.00 0.00 -2.70% 2025-06-24 MRSN 2025-06-24 04:02:13 0.00 0.34 -2.70% MRSN 2025-06-24 05:01:44 0.40 0.34 -2.70% MRSN 2025-06-24 10:02:11 0.36 0.34 2.70% MRSN 2025-06-24 11:01:47 0.36 0.35 5.41% MRSN 2025-06-24 13:01:54 0.35 0.34 2.70% MRSN 2025-06-24 15:01:45 0.36 0.34 2.70% MRSN 2025-06-24 17:01:49 0.36 0.34 2.94% MRSN 2025-06-24 20:02:06 0.00 0.00 2.94% 2025-06-25 MRSN 2025-06-25 05:01:47 0.40 0.31 2.94% MRSN 2025-06-25 09:01:48 0.37 0.31 2.94% MRSN 2025-06-25 10:02:18 0.34 0.33 0.00% MRSN 2025-06-25 11:01:50 0.35 0.34 2.94% MRSN 2025-06-25 15:01:45 0.36 0.35 5.88% MRSN 2025-06-25 16:02:12 0.36 0.33 5.88% MRSN 2025-06-25 17:01:46 0.37 0.33 5.88% MRSN 2025-06-25 20:02:07 0.00 0.00 5.88% 2025-06-26 MRSN 2025-06-26 05:01:48 0.40 0.32 5.88% MRSN 2025-06-26 07:01:50 0.39 0.32 5.88% MRSN 2025-06-26 08:02:13 0.39 0.31 5.88% MRSN 2025-06-26 09:01:49 0.39 0.34 5.88% MRSN 2025-06-26 10:02:13 0.35 0.34 0.00% MRSN 2025-06-26 11:01:44 0.34 0.33 -2.94% MRSN 2025-06-26 12:02:14 0.34 0.33 -5.88% MRSN 2025-06-26 13:01:49 0.34 0.33 -2.94% MRSN 2025-06-26 16:02:09 0.33 0.32 -5.88% MRSN 2025-06-26 17:01:43 0.35 0.32 -5.71% MRSN 2025-06-26 18:02:19 0.37 0.32 -5.71% MRSN 2025-06-26 19:01:49 0.36 0.32 -5.71% MRSN 2025-06-26 20:02:13 0.00 0.00 -5.71% 2025-06-27 MRSN 2025-06-27 04:02:14 0.00 0.32 -5.71% MRSN 2025-06-27 05:00:45 0.38 0.32 -5.71% MRSN 2025-06-27 08:00:52 0.37 0.33 -5.71% MRSN 2025-06-27 09:00:40 0.38 0.33 5.71% MRSN 2025-06-27 10:00:48 0.33 0.32 2.86% MRSN 2025-06-27 15:00:51 0.32 0.31 0.00% MRSN 2025-06-27 16:00:45 0.31 0.30 -2.86% MRSN 2025-06-27 17:00:38 0.34 0.29 -6.06% MRSN 2025-06-27 20:00:48 0.35 0.28 -6.06% MRSN 2025-06-27 21:00:38 0.00 0.00 -6.06% 2025-06-30 MRSN 2025-06-30 05:00:44 0.36 0.29 3.03% MRSN 2025-06-30 07:00:42 0.32 0.29 3.03% MRSN 2025-06-30 08:00:46 0.34 0.29 3.03% MRSN 2025-06-30 10:00:45 0.32 0.31 9.09% MRSN 2025-06-30 11:00:41 0.31 0.30 6.06% MRSN 2025-06-30 12:00:43 0.30 0.28 3.03% MRSN 2025-06-30 13:00:42 0.29 0.28 0.00% MRSN 2025-06-30 16:00:51 0.30 0.29 3.03% MRSN 2025-06-30 17:00:45 0.33 0.28 3.45% MRSN 2025-06-30 19:00:38 0.33 0.29 3.45% MRSN 2025-06-30 20:00:44 0.35 0.28 3.45% MRSN 2025-06-30 21:00:38 0.00 0.00 3.45% 2025-07-01 MRSN 2025-07-01 05:00:44 0.35 0.28 3.45% MRSN 2025-07-01 06:00:46 0.30 0.28 3.45% MRSN 2025-07-01 08:00:48 0.35 0.28 3.45% MRSN 2025-07-01 09:00:43 0.34 0.28 3.45% MRSN 2025-07-01 10:00:42 0.29 0.28 0.00% MRSN 2025-07-01 17:00:45 0.31 0.27 -3.33% MRSN 2025-07-01 19:00:46 0.33 0.27 -3.33% MRSN 2025-07-01 21:00:40 0.00 0.00 -3.33% 2025-07-02 MRSN 2025-07-02 05:00:45 0.32 0.25 6.67% MRSN 2025-07-02 06:00:47 0.33 0.25 6.67% MRSN 2025-07-02 09:00:43 0.32 0.25 6.67% MRSN 2025-07-02 10:00:47 0.28 0.27 3.33% MRSN 2025-07-02 11:00:40 0.29 0.28 6.67% MRSN 2025-07-02 12:00:44 0.28 0.27 3.33% MRSN 2025-07-02 14:00:53 0.29 0.28 6.67% MRSN 2025-07-02 15:00:40 0.29 0.27 3.33% MRSN 2025-07-02 16:00:46 0.29 0.28 6.67% MRSN 2025-07-02 17:00:48 0.29 0.27 7.14% MRSN 2025-07-02 21:00:52 0.00 0.00 7.14% 2025-07-03 MRSN 2025-07-03 05:00:45 0.33 0.27 7.14% MRSN 2025-07-03 06:00:51 0.29 0.28 7.14% MRSN 2025-07-03 08:00:55 0.31 0.28 7.14% MRSN 2025-07-03 09:00:48 0.32 0.28 7.14% MRSN 2025-07-03 10:00:48 0.29 0.28 7.14% MRSN 2025-07-03 11:00:47 0.30 0.29 10.71% MRSN 2025-07-03 13:00:42 0.30 0.28 7.14% MRSN 2025-07-03 16:00:49 0.30 0.28 3.57% MRSN 2025-07-03 16:10:34 8-K Sec report https://www.sec.gov/Archives/edgar/data/1442836/000110465925065785/0001104659-25-065785-index.htm 8-K - Mersana Therapeutics, Inc. (0001442836) (Filer) MRSN 2025-07-03 17:00:44 0.30 0.28 10.71% MRSN 2025-07-03 18:00:46 0.00 0.00 10.71% 2025-07-07 MRSN 2025-07-07 05:00:52 0.34 0.28 10.71% MRSN 2025-07-07 06:00:54 0.35 0.30 10.71% MRSN 2025-07-07 08:00:48 0.31 0.28 10.71% MRSN 2025-07-07 09:00:53 0.31 0.29 10.71% MRSN 2025-07-07 10:00:53 0.31 0.30 10.71% MRSN 2025-07-07 11:00:54 0.32 0.31 10.71% MRSN 2025-07-07 12:00:46 0.32 0.31 14.29% MRSN 2025-07-07 13:00:40 0.32 0.31 10.71% MRSN 2025-07-07 15:00:38 0.32 0.31 14.29% MRSN 2025-07-07 16:00:46 0.32 0.31 10.71% MRSN 2025-07-07 17:00:47 0.32 0.31 10.34% MRSN 2025-07-07 19:00:45 0.32 0.28 13.79% MRSN 2025-07-07 20:00:45 0.32 0.30 13.79% MRSN 2025-07-07 21:00:41 0.00 0.00 13.79% 2025-07-08 MRSN 2025-07-08 05:00:50 0.31 0.30 13.79% MRSN 2025-07-08 06:00:52 0.31 0.30 3.45% MRSN 2025-07-08 08:00:45 0.34 0.30 3.45% MRSN 2025-07-08 09:00:44 0.34 0.29 3.45% MRSN 2025-07-08 10:00:44 0.31 0.30 3.45% MRSN 2025-07-08 12:00:44 0.32 0.30 3.45% MRSN 2025-07-08 13:00:44 0.31 0.30 3.45% MRSN 2025-07-08 14:00:45 0.32 0.31 6.90% MRSN 2025-07-08 16:00:49 0.34 0.33 13.79% MRSN 2025-07-08 17:00:50 0.36 0.31 10.00% MRSN 2025-07-08 18:00:53 0.37 0.31 10.00% MRSN 2025-07-08 19:00:47 0.36 0.31 10.00% MRSN 2025-07-08 20:00:52 0.37 0.31 10.00% MRSN 2025-07-08 21:00:47 0.00 0.00 10.00% 2025-07-09 MRSN 2025-07-09 05:00:44 0.36 0.27 10.00% MRSN 2025-07-09 06:00:51 0.36 0.28 10.00% MRSN 2025-07-09 08:00:48 0.34 0.29 10.00% MRSN 2025-07-09 09:00:44 0.34 0.30 10.00% MRSN 2025-07-09 10:00:47 0.34 0.33 6.67% MRSN 2025-07-09 11:00:44 0.35 0.34 10.00% MRSN 2025-07-09 12:00:47 0.34 0.33 6.67% MRSN 2025-07-09 15:00:42 0.35 0.33 10.00% MRSN 2025-07-09 16:00:51 0.34 0.33 6.67% MRSN 2025-07-09 17:00:46 0.35 0.33 6.06% MRSN 2025-07-09 18:00:46 0.35 0.34 9.09% MRSN 2025-07-09 19:00:41 0.35 0.32 9.09% MRSN 2025-07-09 21:00:43 0.00 0.00 9.09% 2025-07-10 MRSN 2025-07-10 05:00:54 0.37 0.32 9.09% MRSN 2025-07-10 07:00:47 0.37 0.33 9.09% MRSN 2025-07-10 09:00:50 0.37 0.34 9.09% MRSN 2025-07-10 10:00:48 0.35 0.33 3.03% MRSN 2025-07-10 11:00:45 0.38 0.37 15.15% MRSN 2025-07-10 12:00:42 0.37 0.35 12.12% MRSN 2025-07-10 13:00:43 0.37 0.36 12.12% MRSN 2025-07-10 14:00:48 0.38 0.37 15.15% MRSN 2025-07-10 16:00:50 0.39 0.38 15.15% MRSN 2025-07-10 17:00:48 0.39 0.37 14.71% MRSN 2025-07-10 18:00:53 0.38 0.37 14.71% MRSN 2025-07-10 19:00:45 0.39 0.37 14.71% MRSN 2025-07-10 21:00:44 0.00 0.00 14.71% 2025-07-11 MRSN 2025-07-11 05:01:51 0.40 0.35 14.71% MRSN 2025-07-11 06:02:17 0.41 0.35 14.71% MRSN 2025-07-11 08:02:21 0.38 0.34 14.71% MRSN 2025-07-11 09:01:50 0.39 0.34 0.00% MRSN 2025-07-11 10:02:31 0.38 0.37 0.00% MRSN 2025-07-11 11:01:42 0.37 0.36 -2.94% MRSN 2025-07-11 12:02:20 0.37 0.35 -2.94% MRSN 2025-07-11 13:01:48 0.35 0.34 -5.88% MRSN 2025-07-11 16:02:18 0.38 0.34 -5.88% MRSN 2025-07-11 17:01:46 0.38 0.30 -5.26% MRSN 2025-07-11 18:02:18 0.38 0.31 -5.26% MRSN 2025-07-11 20:02:24 0.00 0.00 -5.26% 2025-07-14 MRSN 2025-07-14 05:01:42 0.39 0.34 -5.26% MRSN 2025-07-14 06:02:22 0.38 0.35 5.26% MRSN 2025-07-14 07:01:43 0.38 0.32 5.26% MRSN 2025-07-14 08:02:21 0.36 0.32 5.26% MRSN 2025-07-14 09:01:47 0.36 0.31 5.26% MRSN 2025-07-14 10:02:25 0.35 0.34 0.00% MRSN 2025-07-14 11:01:47 0.34 0.33 0.00% MRSN 2025-07-14 12:02:19 0.35 0.34 2.63% MRSN 2025-07-14 15:01:48 0.35 0.34 0.00% MRSN 2025-07-14 16:02:18 0.35 0.33 2.63% MRSN 2025-07-14 17:01:46 0.35 0.33 2.94% MRSN 2025-07-14 18:02:22 0.36 0.33 2.94% MRSN 2025-07-14 19:01:50 0.37 0.33 2.94% MRSN 2025-07-14 20:02:26 0.00 0.00 2.94% 2025-07-15 MRSN 2025-07-15 04:02:24 0.40 0.00 2.94% MRSN 2025-07-15 05:01:47 0.38 0.30 2.94% MRSN 2025-07-15 06:02:22 0.40 0.34 2.94% MRSN 2025-07-15 07:01:52 0.38 0.34 2.94% MRSN 2025-07-15 08:02:25 0.35 0.34 2.94% MRSN 2025-07-15 10:02:26 0.34 0.33 0.00% MRSN 2025-07-15 11:01:52 0.33 0.32 -2.94% MRSN 2025-07-15 16:02:21 0.36 0.32 -2.94% MRSN 2025-07-15 20:02:25 0.00 0.00 -2.94% 2025-07-16 MRSN 2025-07-16 05:01:41 0.36 0.30 -2.94% MRSN 2025-07-16 06:02:18 0.37 0.32 -2.94% MRSN 2025-07-16 08:02:20 0.36 0.32 2.94% MRSN 2025-07-16 09:01:54 0.34 0.32 2.94% MRSN 2025-07-16 10:02:22 0.33 0.32 2.94% MRSN 2025-07-16 11:01:48 0.34 0.33 5.88% MRSN 2025-07-16 13:01:50 0.35 0.34 8.82% MRSN 2025-07-16 16:02:24 0.36 0.33 5.88% MRSN 2025-07-16 17:01:54 0.36 0.33 6.06% MRSN 2025-07-16 20:02:18 0.00 0.00 6.06% 2025-07-17 MRSN 2025-07-17 04:02:32 0.38 0.00 6.06% MRSN 2025-07-17 05:03:42 0.35 0.31 6.06% MRSN 2025-07-17 07:01:52 0.35 0.33 6.06% MRSN 2025-07-17 10:02:29 0.37 0.35 9.09% MRSN 2025-07-17 11:01:53 0.37 0.36 9.09% MRSN 2025-07-17 12:02:27 0.37 0.36 12.12% MRSN 2025-07-17 16:02:30 0.38 0.36 12.12% MRSN 2025-07-17 17:01:59 0.38 0.36 11.76% MRSN 2025-07-17 18:02:23 0.38 0.32 11.76% MRSN 2025-07-17 20:02:23 0.00 0.00 11.76% 2025-07-18 MRSN 2025-07-18 04:02:18 0.38 0.34 11.76% MRSN 2025-07-18 05:01:56 0.38 0.33 5.88% MRSN 2025-07-18 06:02:17 0.38 0.32 5.88%