$SPRO: Spero Therapeutics, Inc. - Common Stock
2025-06-17 SPRO 2025-06-17 06:02:55 3.02 2.60 1.06% SPRO 2025-06-17 07:02:06 2.87 2.80 -1.41% SPRO 2025-06-17 08:02:52 2.87 2.81 -1.41% SPRO 2025-06-17 09:01:59 2.85 2.81 0.00% SPRO 2025-06-17 10:02:54 2.90 2.88 1.77% SPRO 2025-06-17 11:02:02 2.84 2.83 -0.71% SPRO 2025-06-17 12:02:55 2.87 2.86 0.35% SPRO 2025-06-17 13:02:06 2.86 2.85 0.00% SPRO 2025-06-17 14:02:54 2.92 2.91 2.47% SPRO 2025-06-17 15:02:08 2.89 2.88 1.77% SPRO 2025-06-17 16:02:51 2.97 2.88 1.77% SPRO 2025-06-17 17:02:00 2.95 2.88 1.75% SPRO 2025-06-17 18:02:51 2.94 2.88 3.16% SPRO 2025-06-17 19:02:06 2.95 2.88 2.46% SPRO 2025-06-17 20:02:53 0.00 0.00 1.75% 2025-06-18 SPRO 2025-06-18 04:02:55 3.22 0.00 1.75% SPRO 2025-06-18 05:02:11 2.94 2.66 1.40% SPRO 2025-06-18 07:02:09 2.95 2.90 2.11% SPRO 2025-06-18 08:02:56 2.95 2.91 2.11% SPRO 2025-06-18 09:02:08 2.98 2.97 2.81% SPRO 2025-06-18 10:02:56 2.95 2.94 1.75% SPRO 2025-06-18 11:02:11 2.88 2.87 -0.70% SPRO 2025-06-18 12:02:52 2.92 2.90 0.70% SPRO 2025-06-18 13:02:05 2.91 2.90 0.70% SPRO 2025-06-18 15:02:11 2.88 2.86 -0.70% SPRO 2025-06-18 16:03:01 2.95 2.90 1.75% SPRO 2025-06-18 17:02:05 2.97 2.92 1.72% SPRO 2025-06-18 17:12:45 8-K Sec report https://www.sec.gov/Archives/edgar/data/1701108/000119312525142807/0001193125-25-142807-index.htm 8-K - Spero Therapeutics, Inc. (0001701108) (Filer) SPRO 2025-06-18 18:02:51 2.95 2.92 1.72% SPRO 2025-06-18 19:02:08 2.97 2.92 1.72% SPRO 2025-06-18 20:02:56 0.00 0.00 1.03% 2025-06-20 SPRO 2025-06-20 04:02:50 3.22 0.00 1.03% SPRO 2025-06-20 05:01:59 2.97 2.88 -1.38% SPRO 2025-06-20 06:02:49 2.94 2.90 -1.38% SPRO 2025-06-20 07:02:07 2.94 2.88 0.00% SPRO 2025-06-20 09:02:02 2.95 2.91 0.00% SPRO 2025-06-20 10:02:56 2.94 2.92 -0.69% SPRO 2025-06-20 11:02:05 2.92 2.90 -0.69% SPRO 2025-06-20 12:02:52 2.93 2.92 0.00% SPRO 2025-06-20 13:02:02 2.91 2.90 -1.38% SPRO 2025-06-20 14:02:57 2.94 2.93 0.00% SPRO 2025-06-20 15:02:02 2.91 2.90 -0.69% SPRO 2025-06-20 16:16:07 3.01 2.89 2.76% SPRO 2025-06-20 17:15:18 3.00 2.89 2.38% SPRO 2025-06-20 18:18:00 3.00 2.95 1.02% SPRO 2025-06-20 20:02:49 0.00 0.00 1.02% 2025-06-23 SPRO 2025-06-23 04:02:52 3.22 0.00 1.02% SPRO 2025-06-23 05:02:01 3.15 2.78 1.02% SPRO 2025-06-23 06:02:52 3.15 2.90 -1.36% SPRO 2025-06-23 07:02:03 3.15 2.91 -4.08% SPRO 2025-06-23 09:11:45 3.03 2.98 -0.68% SPRO 2025-06-23 10:05:19 2.94 2.91 -2.72% SPRO 2025-06-23 11:02:46 2.93 2.92 -2.72% SPRO 2025-06-23 12:02:18 2.96 2.94 -2.04% SPRO 2025-06-23 13:02:46 2.92 2.91 -3.40% SPRO 2025-06-23 14:02:22 2.94 2.93 -2.72% SPRO 2025-06-23 15:02:43 2.92 2.91 -3.40% SPRO 2025-06-23 16:02:21 2.95 2.88 -2.72% SPRO 2025-06-23 17:02:40 2.93 2.88 -3.97% SPRO 2025-06-23 18:02:18 3.00 2.88 -3.97% SPRO 2025-06-23 20:02:16 0.00 0.00 -3.97% 2025-06-24 SPRO 2025-06-24 04:02:51 3.22 0.00 -3.97% SPRO 2025-06-24 05:02:08 3.00 2.64 -3.97% SPRO 2025-06-24 06:02:54 2.99 2.88 -3.97% SPRO 2025-06-24 08:02:51 2.95 2.90 0.33% SPRO 2025-06-24 09:02:07 2.95 2.90 0.99% SPRO 2025-06-24 10:02:50 2.93 2.92 0.00% SPRO 2025-06-24 11:02:11 2.96 2.94 0.99% SPRO 2025-06-24 12:02:50 2.93 2.92 0.00% SPRO 2025-06-24 13:02:18 2.95 2.92 -0.33% SPRO 2025-06-24 14:02:51 2.88 2.85 -1.66% SPRO 2025-06-24 15:02:08 2.89 2.88 -1.32% SPRO 2025-06-24 16:02:54 2.96 2.90 -0.99% SPRO 2025-06-24 17:02:12 2.94 2.90 -1.02% SPRO 2025-06-24 20:02:43 0.00 0.00 -1.02% 2025-06-25 SPRO 2025-06-25 04:02:46 3.22 0.00 -1.02% SPRO 2025-06-25 05:02:11 3.18 2.61 -0.68% SPRO 2025-06-25 06:02:48 3.18 2.85 -0.68% SPRO 2025-06-25 07:02:07 2.92 2.86 -0.68% SPRO 2025-06-25 08:02:51 2.91 2.90 1.02% SPRO 2025-06-25 10:02:57 2.91 2.90 1.37% SPRO 2025-06-25 11:02:15 2.91 2.90 1.02% SPRO 2025-06-25 13:02:12 2.91 2.90 1.37% SPRO 2025-06-25 14:02:53 2.92 2.91 1.37% SPRO 2025-06-25 15:02:09 2.91 2.90 1.37% SPRO 2025-06-25 16:02:50 2.98 2.80 1.02% SPRO 2025-06-25 17:02:10 2.98 2.80 1.04% SPRO 2025-06-25 18:02:49 2.99 2.80 1.04% SPRO 2025-06-25 19:02:17 2.94 2.80 1.04% SPRO 2025-06-25 20:02:46 0.00 0.00 2.08% 2025-06-26 SPRO 2025-06-26 04:02:58 3.22 0.00 2.08% SPRO 2025-06-26 05:02:12 2.93 2.80 2.08% SPRO 2025-06-26 06:02:50 2.92 2.89 0.00% SPRO 2025-06-26 07:02:14 2.92 2.87 0.00% SPRO 2025-06-26 08:02:51 2.92 2.88 0.00% SPRO 2025-06-26 09:02:13 2.94 2.90 1.39% SPRO 2025-06-26 10:02:51 2.91 2.90 0.00% SPRO 2025-06-26 11:02:08 2.91 2.89 0.00% SPRO 2025-06-26 12:02:53 2.91 2.90 0.69% SPRO 2025-06-26 14:02:51 2.92 2.91 1.04% SPRO 2025-06-26 16:02:47 2.94 2.86 0.00% SPRO 2025-06-26 17:02:06 2.96 2.86 -0.69% SPRO 2025-06-26 18:02:56 3.01 2.86 -0.69% SPRO 2025-06-26 20:02:50 0.00 0.00 -0.69% 2025-06-27 SPRO 2025-06-27 04:02:56 3.22 2.81 -0.69% SPRO 2025-06-27 05:00:48 2.94 2.86 -0.69% SPRO 2025-06-27 06:00:50 2.94 2.84 -1.38% SPRO 2025-06-27 07:00:45 2.93 2.84 -1.38% SPRO 2025-06-27 08:00:57 2.93 2.86 -1.38% SPRO 2025-06-27 10:00:53 2.92 2.91 1.03% SPRO 2025-06-27 11:00:44 3.07 3.05 5.86% SPRO 2025-06-27 12:00:52 2.99 2.98 3.45% SPRO 2025-06-27 13:00:42 2.99 2.98 3.10% SPRO 2025-06-27 14:00:51 2.97 2.96 2.76% SPRO 2025-06-27 15:00:54 2.96 2.95 2.07% SPRO 2025-06-27 16:00:50 2.95 2.94 2.07% SPRO 2025-06-27 17:00:41 3.00 2.92 2.07% SPRO 2025-06-27 18:00:42 2.98 2.97 3.10% SPRO 2025-06-27 19:00:35 2.98 2.92 2.76% SPRO 2025-06-27 21:00:41 0.00 0.00 2.76% 2025-06-30 SPRO 2025-06-30 05:00:47 3.10 2.94 2.76% SPRO 2025-06-30 06:00:49 3.03 2.94 2.76% SPRO 2025-06-30 07:00:46 3.03 2.96 2.76% SPRO 2025-06-30 08:00:51 3.02 2.98 2.76% SPRO 2025-06-30 09:00:47 3.03 2.98 3.10% SPRO 2025-06-30 10:00:49 2.94 2.93 0.00% SPRO 2025-06-30 11:00:44 2.91 2.90 -0.69% SPRO 2025-06-30 13:00:45 2.91 2.89 -1.38% SPRO 2025-06-30 14:00:56 2.91 2.90 -1.38% SPRO 2025-06-30 16:00:56 2.91 2.90 -0.69% SPRO 2025-06-30 17:00:48 2.92 2.85 0.00% SPRO 2025-06-30 21:00:41 0.00 0.00 0.00% 2025-07-01 SPRO 2025-07-01 05:00:47 3.22 2.91 0.68% SPRO 2025-07-01 06:00:50 3.15 2.91 0.68% SPRO 2025-07-01 07:00:44 2.95 2.91 0.68% SPRO 2025-07-01 08:00:53 2.93 2.92 1.36% SPRO 2025-07-01 09:00:46 2.97 2.92 1.02% SPRO 2025-07-01 10:00:46 2.93 2.92 1.36% SPRO 2025-07-01 11:00:46 2.91 2.90 0.68% SPRO 2025-07-01 12:00:48 2.94 2.92 1.02% SPRO 2025-07-01 13:00:46 2.93 2.92 1.36% SPRO 2025-07-01 16:00:50 2.91 2.90 0.00% SPRO 2025-07-01 17:00:48 2.95 2.90 0.00% SPRO 2025-07-01 18:00:49 2.94 2.90 0.00% SPRO 2025-07-01 20:00:52 2.94 2.80 0.00% SPRO 2025-07-01 21:00:43 0.00 0.00 0.00% 2025-07-02 SPRO 2025-07-02 05:00:48 2.95 2.90 0.00% SPRO 2025-07-02 08:00:52 2.94 2.91 0.00% SPRO 2025-07-02 09:00:46 2.93 2.90 0.69% SPRO 2025-07-02 10:00:51 2.91 2.90 0.69% SPRO 2025-07-02 11:00:43 2.92 2.91 1.03% SPRO 2025-07-02 12:00:49 2.94 2.93 1.72% SPRO 2025-07-02 13:00:47 3.02 3.01 4.14% SPRO 2025-07-02 14:00:57 3.01 3.00 4.14% SPRO 2025-07-02 15:00:44 2.96 2.95 2.41% SPRO 2025-07-02 16:00:51 2.91 2.90 0.00% SPRO 2025-07-02 17:00:51 2.92 2.90 0.00% SPRO 2025-07-02 18:00:52 2.91 2.90 0.00% SPRO 2025-07-02 19:00:49 2.92 2.91 1.03% SPRO 2025-07-02 20:00:56 2.95 2.90 1.03% SPRO 2025-07-02 21:00:55 0.00 0.00 1.03% 2025-07-03 SPRO 2025-07-03 05:00:48 3.22 2.91 1.03% SPRO 2025-07-03 06:00:56 2.98 2.90 0.69% SPRO 2025-07-03 07:00:51 2.95 2.90 0.69% SPRO 2025-07-03 08:00:59 2.95 2.90 1.72% SPRO 2025-07-03 10:00:53 2.91 2.90 0.00% SPRO 2025-07-03 11:00:50 2.93 2.92 1.38% SPRO 2025-07-03 14:00:47 2.95 2.90 0.69% SPRO 2025-07-03 15:00:47 2.93 2.90 0.69% SPRO 2025-07-03 18:00:50 0.00 0.00 0.69% 2025-07-07 SPRO 2025-07-07 05:00:55 3.06 2.90 1.03% SPRO 2025-07-07 06:00:58 2.94 2.90 1.03% SPRO 2025-07-07 07:00:47 2.95 2.90 1.03% SPRO 2025-07-07 08:00:52 2.95 2.92 1.03% SPRO 2025-07-07 09:00:56 2.95 2.90 0.34% SPRO 2025-07-07 10:00:57 2.92 2.91 0.00% SPRO 2025-07-07 11:00:57 2.92 2.91 0.34% SPRO 2025-07-07 12:00:50 2.94 2.93 1.03% SPRO 2025-07-07 13:00:43 2.92 2.91 0.34% SPRO 2025-07-07 14:00:52 2.94 2.93 1.03% SPRO 2025-07-07 15:00:41 2.93 2.92 1.03% SPRO 2025-07-07 16:00:51 2.91 2.90 0.00% SPRO 2025-07-07 17:00:50 2.96 2.85 -0.34% SPRO 2025-07-07 18:00:54 2.98 2.85 -0.34% SPRO 2025-07-07 19:00:48 2.98 2.66 -0.34% SPRO 2025-07-07 21:00:44 0.00 0.00 -0.34% 2025-07-08 SPRO 2025-07-08 05:00:53 3.21 2.61 -0.34% SPRO 2025-07-08 06:00:57 2.95 2.85 -0.34% SPRO 2025-07-08 07:00:41 2.95 2.86 -1.37% SPRO 2025-07-08 08:00:49 2.94 2.90 0.69% SPRO 2025-07-08 09:00:47 2.93 2.90 0.69% SPRO 2025-07-08 10:00:48 2.94 2.92 1.72% SPRO 2025-07-08 11:00:44 2.97 2.95 2.41% SPRO 2025-07-08 12:00:49 2.98 2.97 3.09% SPRO 2025-07-08 13:00:47 3.00 2.99 3.44% SPRO 2025-07-08 14:00:50 2.98 2.97 3.09% SPRO 2025-07-08 15:00:49 2.98 2.97 2.75% SPRO 2025-07-08 16:00:54 2.96 2.94 2.06% SPRO 2025-07-08 17:00:53 2.99 2.90 1.72% SPRO 2025-07-08 18:00:57 2.99 2.94 1.72% SPRO 2025-07-08 20:00:57 2.99 2.90 1.72% SPRO 2025-07-08 21:00:50 0.00 0.00 1.72% 2025-07-09 SPRO 2025-07-09 05:00:47 3.22 2.94 1.72% SPRO 2025-07-09 07:00:51 3.20 2.92 0.00% SPRO 2025-07-09 08:00:52 2.99 2.94 0.00% SPRO 2025-07-09 09:00:47 2.97 2.92 0.00% SPRO 2025-07-09 10:00:52 2.99 2.97 1.72% SPRO 2025-07-09 11:00:47 2.97 2.96 1.38% SPRO 2025-07-09 12:00:52 3.08 3.06 4.83% SPRO 2025-07-09 13:00:47 3.15 3.14 7.24% SPRO 2025-07-09 14:00:52 3.07 3.06 4.83% SPRO 2025-07-09 15:00:45 3.07 3.05 4.48% SPRO 2025-07-09 16:00:55 3.05 3.04 4.14% SPRO 2025-07-09 17:00:49 3.14 3.04 3.74% SPRO 2025-07-09 18:00:50 3.14 3.03 3.74% SPRO 2025-07-09 21:00:46 0.00 0.00 3.74% 2025-07-10 SPRO 2025-07-10 05:00:57 3.17 3.05 3.74% SPRO 2025-07-10 06:00:54 3.13 3.05 3.74% SPRO 2025-07-10 07:00:50 3.12 2.90 0.00% SPRO 2025-07-10 08:00:55 3.09 2.90 0.00% SPRO 2025-07-10 09:00:54 3.09 3.01 0.00% SPRO 2025-07-10 10:00:53 2.99 2.97 -2.04% SPRO 2025-07-10 11:00:48 3.01 3.00 -1.36% SPRO 2025-07-10 12:00:46 3.01 2.99 -1.36% SPRO 2025-07-10 13:00:46 2.97 2.96 -2.04% SPRO 2025-07-10 15:00:47 2.95 2.94 -2.72% SPRO 2025-07-10 16:00:54 2.85 2.84 -6.80% SPRO 2025-07-10 17:00:51 2.95 2.86 -5.92% SPRO 2025-07-10 18:00:57 2.95 2.87 -5.92% SPRO 2025-07-10 20:00:51 2.95 2.86 -5.92% SPRO 2025-07-10 21:00:48 0.00 0.00 -5.92% 2025-07-11 SPRO 2025-07-11 05:02:15 2.95 2.85 0.99% SPRO 2025-07-11 06:02:55 2.95 2.86 0.99% SPRO 2025-07-11 08:02:59 2.92 2.86 0.99% SPRO 2025-07-11 09:02:14 2.95 2.86 0.99% SPRO 2025-07-11 10:03:10 2.87 2.84 0.66% SPRO 2025-07-11 11:02:07 2.87 2.85 0.99% SPRO 2025-07-11 12:02:58 2.82 2.81 -0.66% SPRO 2025-07-11 14:02:55 2.82 2.80 -0.66% SPRO 2025-07-11 15:02:06 2.83 2.82 -0.66% SPRO 2025-07-11 16:02:56 2.89 2.78 -0.66% SPRO 2025-07-11 17:02:10 2.89 2.78 -0.70% SPRO 2025-07-11 20:03:02 0.00 0.00 -0.70% 2025-07-14 SPRO 2025-07-14 04:03:00 2.89 0.00 -0.70% SPRO 2025-07-14 05:02:06 2.89 2.54 -0.70% SPRO 2025-07-14 06:03:00 2.89 2.78 -0.70% SPRO 2025-07-14 07:02:07 2.89 2.81 -0.70% SPRO 2025-07-14 09:02:11 2.87 2.84 1.76% SPRO 2025-07-14 10:03:05 2.83 2.82 1.06% SPRO 2025-07-14 11:02:11 2.77 2.76 -1.41% SPRO 2025-07-14 12:02:57 2.76 2.75 -2.11% SPRO 2025-07-14 13:02:08 2.75 2.73 -2.11% SPRO 2025-07-14 14:03:00 2.71 2.70 -3.52% SPRO 2025-07-14 15:02:13 2.64 2.63 -5.63% SPRO 2025-07-14 16:02:55 2.89 2.62 -5.63% SPRO 2025-07-14 17:02:09 2.68 2.62 -5.69% SPRO 2025-07-14 18:03:00 2.68 2.62 -4.98% SPRO 2025-07-14 20:03:04 0.00 0.00 -4.98% 2025-07-15 SPRO 2025-07-15 04:03:02 2.89 0.00 -4.98% SPRO 2025-07-15 05:02:16 2.88 2.60 0.00% SPRO 2025-07-15 06:02:59 2.88 2.60 -1.07% SPRO 2025-07-15 07:02:21 2.85 2.60 -1.07% SPRO 2025-07-15 09:02:16 2.86 2.60 -1.07% SPRO 2025-07-15 10:03:07 2.60 2.58 -1.78% SPRO 2025-07-15 11:02:22 2.58 2.56 -2.14% SPRO 2025-07-15 12:03:02 2.55 2.54 -2.85% SPRO 2025-07-15 13:02:20 2.52 2.50 -4.27% SPRO 2025-07-15 14:02:58 2.50 2.49 -4.98% SPRO 2025-07-15 16:02:58 2.57 2.47 -4.98% SPRO 2025-07-15 17:02:12 2.52 2.47 -5.30% SPRO 2025-07-15 18:03:02 2.52 2.45 -5.30% SPRO 2025-07-15 19:02:18 2.52 2.49 -5.30% SPRO 2025-07-15 20:03:03 0.00 0.00 -4.55% 2025-07-16 SPRO 2025-07-16 04:03:05 2.62 0.00 0.38% SPRO 2025-07-16 05:02:06 2.73 2.50 0.38% SPRO 2025-07-16 08:02:58 2.73 2.49 0.38% SPRO 2025-07-16 10:03:01 2.46 2.45 -1.52% SPRO 2025-07-16 11:02:13 2.50 2.49 0.38% SPRO 2025-07-16 13:02:15 2.50 2.48 0.00% SPRO 2025-07-16 14:03:00 2.50 2.49 0.38% SPRO 2025-07-16 15:02:11 2.50 2.48 0.00% SPRO 2025-07-16 16:03:02 2.55 2.48 -0.38% SPRO 2025-07-16 17:02:17 2.55 2.48 -0.40% SPRO 2025-07-16 18:03:08 2.55 2.46 -0.40% SPRO 2025-07-16 20:02:55 0.00 0.00 -0.40% 2025-07-17 SPRO 2025-07-17 05:04:49 2.48 2.35 0.40%