$SPRO: Spero Therapeutics, Inc. - Common Stock
2026-05-15 SPRO 2026-05-15 07:03:22 2.74 2.39 -4.10% SPRO 2026-05-15 08:02:25 2.73 2.65 -4.10% SPRO 2026-05-15 09:03:18 2.73 2.66 -4.10% SPRO 2026-05-15 10:02:27 2.80 2.79 2.05% SPRO 2026-05-15 11:03:28 2.86 2.85 4.51% SPRO 2026-05-15 12:02:19 2.79 2.78 1.64% SPRO 2026-05-15 13:03:21 2.74 2.73 -0.41% SPRO 2026-05-15 14:02:19 2.77 2.76 0.82% SPRO 2026-05-15 15:03:22 2.79 2.78 1.64% SPRO 2026-05-15 16:02:26 2.87 2.79 1.45% SPRO 2026-05-15 18:02:28 2.84 2.79 1.45% SPRO 2026-05-15 20:02:29 0.00 0.00 1.45% 2026-05-18 SPRO 2026-05-18 04:03:26 3.08 2.70 1.45% SPRO 2026-05-18 07:02:23 2.79 2.71 1.45% SPRO 2026-05-18 08:03:25 2.84 2.76 -2.17% SPRO 2026-05-18 09:02:35 2.83 2.70 -2.17% SPRO 2026-05-18 10:03:13 2.68 2.67 -3.62% SPRO 2026-05-18 11:02:22 2.69 2.68 -3.62% SPRO 2026-05-18 12:03:22 2.68 2.67 -3.62% SPRO 2026-05-18 13:02:30 2.66 2.65 -4.35% SPRO 2026-05-18 14:03:23 2.62 2.61 -5.80% SPRO 2026-05-18 15:02:23 2.60 2.59 -6.52% SPRO 2026-05-18 16:03:26 2.80 2.57 -0.72% SPRO 2026-05-18 17:02:25 2.64 2.57 -0.72% SPRO 2026-05-18 18:03:17 2.66 2.58 -0.72% SPRO 2026-05-18 19:02:25 2.66 2.57 -0.72% SPRO 2026-05-18 20:03:17 0.00 0.00 -0.72% 2026-05-19 SPRO 2026-05-19 04:03:34 3.08 2.29 -0.72% SPRO 2026-05-19 06:03:21 3.08 2.31 -0.72% SPRO 2026-05-19 07:02:26 2.83 2.43 -0.72% SPRO 2026-05-19 08:03:18 2.58 2.52 -0.72% SPRO 2026-05-19 09:02:24 2.61 2.54 -0.72% SPRO 2026-05-19 10:03:27 2.54 2.52 -1.43% SPRO 2026-05-19 11:02:23 2.61 2.60 1.08% SPRO 2026-05-19 12:03:28 2.57 2.56 -0.36% SPRO 2026-05-19 13:02:24 2.60 2.59 0.36% SPRO 2026-05-19 14:03:20 2.62 2.61 1.79% SPRO 2026-05-19 15:02:22 2.60 2.59 1.08% SPRO 2026-05-19 16:03:09 2.58 2.56 0.39% SPRO 2026-05-19 17:02:32 2.62 2.56 0.00% SPRO 2026-05-19 18:03:16 2.84 2.56 0.00% SPRO 2026-05-19 19:02:34 2.84 2.50 0.00% SPRO 2026-05-19 20:03:21 0.00 0.00 0.00% 2026-05-20 SPRO 2026-05-20 04:03:26 3.08 2.31 0.00% SPRO 2026-05-20 05:02:27 3.08 2.33 0.00% SPRO 2026-05-20 07:02:23 2.91 2.37 0.00% SPRO 2026-05-20 08:03:16 2.93 2.59 0.00% SPRO 2026-05-20 09:02:25 3.45 2.59 0.00% SPRO 2026-05-20 10:03:15 2.57 2.56 -0.78% SPRO 2026-05-20 11:02:22 2.62 2.61 1.55% SPRO 2026-05-20 12:03:21 2.63 2.62 1.94% SPRO 2026-05-20 13:02:22 2.65 2.64 2.33% SPRO 2026-05-20 14:03:15 2.63 2.62 1.94% SPRO 2026-05-20 15:02:29 2.62 2.61 1.16% SPRO 2026-05-20 16:03:20 2.70 2.59 1.93% SPRO 2026-05-20 17:02:28 2.65 2.59 1.93% SPRO 2026-05-20 18:03:19 2.70 2.59 1.93% SPRO 2026-05-20 20:03:13 0.00 0.00 1.93% 2026-05-21 SPRO 2026-05-21 04:03:29 3.08 2.18 1.93% SPRO 2026-05-21 05:02:28 2.93 2.18 1.93% SPRO 2026-05-21 07:02:23 2.70 2.63 1.93% SPRO 2026-05-21 08:03:21 2.67 2.57 1.54% SPRO 2026-05-21 10:03:22 2.62 2.61 -0.77% SPRO 2026-05-21 11:02:24 2.58 2.57 -2.32% SPRO 2026-05-21 12:03:20 2.60 2.59 -1.54% SPRO 2026-05-21 13:02:29 2.65 2.64 0.77% SPRO 2026-05-21 14:03:22 2.68 2.67 2.32% SPRO 2026-05-21 15:02:25 2.69 2.68 2.70% SPRO 2026-05-21 16:03:18 2.78 2.59 2.66% SPRO 2026-05-21 17:02:29 2.69 2.59 2.66% SPRO 2026-05-21 19:02:26 2.69 2.54 2.66% SPRO 2026-05-21 20:03:21 0.00 0.00 2.66% 2026-05-22 SPRO 2026-05-22 04:03:14 3.08 2.37 2.66% SPRO 2026-05-22 06:03:17 3.08 2.67 2.66% SPRO 2026-05-22 07:02:22 2.79 2.71 2.66% SPRO 2026-05-22 08:03:29 2.76 2.71 2.66% SPRO 2026-05-22 09:02:25 2.83 2.69 2.66% SPRO 2026-05-22 10:03:19 2.78 2.77 3.80% SPRO 2026-05-22 11:02:19 2.80 2.79 4.18% SPRO 2026-05-22 12:03:23 2.82 2.81 4.94% SPRO 2026-05-22 13:02:51 2.84 2.83 5.70% SPRO 2026-05-22 14:03:19 2.80 2.79 4.18% SPRO 2026-05-22 15:02:29 2.79 2.78 4.18% SPRO 2026-05-22 16:03:20 2.80 2.72 2.97% SPRO 2026-05-22 17:02:17 2.80 2.71 2.97% SPRO 2026-05-22 18:03:28 2.81 2.71 2.97% SPRO 2026-05-22 19:02:25 2.81 2.67 2.97% SPRO 2026-05-22 20:03:15 0.00 0.00 2.97% 2026-05-26 SPRO 2026-05-26 04:03:22 3.09 2.54 2.97% SPRO 2026-05-26 06:03:16 3.09 2.67 2.97% SPRO 2026-05-26 07:02:32 2.84 2.67 2.97% SPRO 2026-05-26 08:03:14 2.83 2.67 2.97% SPRO 2026-05-26 10:03:18 2.90 2.89 5.20% SPRO 2026-05-26 11:02:21 2.91 2.90 5.58% SPRO 2026-05-26 12:03:20 2.91 2.90 5.95% SPRO 2026-05-26 13:02:23 2.87 2.86 4.09% SPRO 2026-05-26 14:03:24 2.87 2.86 4.46% SPRO 2026-05-26 15:02:29 2.85 2.84 3.35% SPRO 2026-05-26 16:03:10 2.86 2.82 3.99% SPRO 2026-05-26 20:03:16 0.00 0.00 3.99% 2026-05-27 SPRO 2026-05-27 04:03:29 3.13 2.76 3.99% SPRO 2026-05-27 05:02:29 2.93 2.76 3.99% SPRO 2026-05-27 08:03:17 2.93 2.84 3.99% SPRO 2026-05-27 09:02:21 2.90 2.76 3.99% SPRO 2026-05-27 10:03:17 2.95 2.94 3.62% SPRO 2026-05-27 12:03:21 3.03 3.02 6.52% SPRO 2026-05-27 13:02:21 3.04 3.03 6.88% SPRO 2026-05-27 14:03:15 3.00 2.99 5.07% SPRO 2026-05-27 15:02:25 2.98 2.97 4.71% SPRO 2026-05-27 16:03:31 2.95 2.90 2.80% SPRO 2026-05-27 17:02:20 2.95 2.90 3.50% SPRO 2026-05-27 18:03:45 2.95 2.90 3.15% SPRO 2026-05-27 20:03:17 0.00 0.00 3.15% 2026-05-28 SPRO 2026-05-28 04:03:40 3.22 2.47 3.15% SPRO 2026-05-28 05:02:28 3.00 2.65 3.15% SPRO 2026-05-28 06:03:18 3.00 2.65 1.05% SPRO 2026-05-28 07:02:28 2.97 2.89 1.05% SPRO 2026-05-28 08:03:22 2.98 2.90 1.05% SPRO 2026-05-28 09:02:23 2.95 2.90 1.05% SPRO 2026-05-28 10:03:19 2.95 2.94 1.05% SPRO 2026-05-28 11:02:29 2.95 2.94 0.35% SPRO 2026-05-28 12:03:17 2.97 2.96 1.75% SPRO 2026-05-28 13:02:25 2.95 2.94 1.05% SPRO 2026-05-28 14:03:20 2.97 2.96 1.75% SPRO 2026-05-28 15:02:40 2.91 2.90 -0.70% SPRO 2026-05-28 16:03:22 2.91 2.88 -1.02% SPRO 2026-05-28 18:03:03 2.98 2.91 -0.68% SPRO 2026-05-28 20:03:02 0.00 0.00 -0.68% 2026-05-29 SPRO 2026-05-29 04:03:20 3.25 2.69 -0.68% SPRO 2026-05-29 05:02:21 3.00 2.69 -0.68% SPRO 2026-05-29 07:02:21 3.00 2.89 -0.68% SPRO 2026-05-29 09:02:34 2.94 2.89 -0.68% SPRO 2026-05-29 10:03:17 2.83 2.82 -2.05% SPRO 2026-05-29 11:02:25 2.81 2.80 -2.73% SPRO 2026-05-29 12:03:23 2.80 2.79 -3.07% SPRO 2026-05-29 13:02:17 2.77 2.76 -4.10% SPRO 2026-05-29 14:03:18 2.83 2.82 -2.05% SPRO 2026-05-29 15:02:23 2.80 2.79 -3.07% SPRO 2026-05-29 16:03:18 2.83 2.76 -2.07% SPRO 2026-05-29 17:02:22 2.84 2.76 -4.14% SPRO 2026-05-29 19:02:37 2.95 2.59 -2.07% SPRO 2026-05-29 20:03:13 0.00 0.00 -2.07% 2026-06-01 SPRO 2026-06-01 04:03:29 3.25 2.76 -2.07% SPRO 2026-06-01 05:02:22 3.00 2.76 -2.07% SPRO 2026-06-01 06:03:20 2.98 2.60 -2.07% SPRO 2026-06-01 07:02:20 2.92 2.60 3.10% SPRO 2026-06-01 08:03:24 2.91 2.86 1.72% SPRO 2026-06-01 09:02:29 2.90 2.81 0.00% SPRO 2026-06-01 10:03:17 2.87 2.86 1.72% SPRO 2026-06-01 11:02:21 2.82 2.81 -0.69% SPRO 2026-06-01 12:03:18 2.82 2.81 -0.34% SPRO 2026-06-01 13:02:52 2.83 2.82 0.00% SPRO 2026-06-01 14:03:19 2.82 2.81 -0.69% SPRO 2026-06-01 15:02:27 2.82 2.81 -0.34% SPRO 2026-06-01 16:03:25 2.84 2.78 0.00% SPRO 2026-06-01 17:02:24 2.91 2.78 -0.71% SPRO 2026-06-01 20:03:15 0.00 0.00 -0.71% 2026-06-02 SPRO 2026-06-02 04:03:21 3.11 2.75 -0.71% SPRO 2026-06-02 07:02:24 2.86 2.75 -0.71% SPRO 2026-06-02 08:03:16 3.00 2.83 1.06% SPRO 2026-06-02 09:02:19 2.86 2.81 0.00% SPRO 2026-06-02 10:03:16 2.79 2.78 -1.41% SPRO 2026-06-02 11:02:23 2.81 2.80 -0.71% SPRO 2026-06-02 14:03:19 2.83 2.82 0.00% SPRO 2026-06-02 15:02:33 2.85 2.84 1.06% SPRO 2026-06-02 16:03:26 3.00 2.79 0.00% SPRO 2026-06-02 17:02:22 2.85 2.78 0.00% SPRO 2026-06-02 18:03:17 3.08 2.78 0.00% SPRO 2026-06-02 20:03:16 0.00 0.00 0.00% 2026-06-03 SPRO 2026-06-03 04:03:23 2.98 2.80 0.00% SPRO 2026-06-03 07:05:57 2.86 2.81 1.06% SPRO 2026-06-03 08:03:16 2.87 2.81 1.06% SPRO 2026-06-03 09:02:27 2.87 2.80 1.06% SPRO 2026-06-03 10:03:16 2.80 2.79 -0.71% SPRO 2026-06-03 11:02:21 2.79 2.78 -1.41% SPRO 2026-06-03 12:03:16 2.82 2.81 -0.35% SPRO 2026-06-03 13:02:23 2.79 2.78 -1.41% SPRO 2026-06-03 14:03:14 2.80 2.79 -0.71% SPRO 2026-06-03 16:03:16 2.85 2.80 -0.71% SPRO 2026-06-03 17:02:27 2.85 2.81 -0.71% SPRO 2026-06-03 18:03:17 2.88 2.81 0.35% SPRO 2026-06-03 19:02:20 2.89 2.80 -0.35% SPRO 2026-06-03 20:03:17 0.00 0.00 -0.35% 2026-06-04 SPRO 2026-06-04 04:03:22 3.13 2.47 -0.35% SPRO 2026-06-04 05:02:24 2.88 2.49 -0.35% SPRO 2026-06-04 06:03:21 2.88 2.49 2.83% SPRO 2026-06-04 07:02:17 2.86 2.79 2.83% SPRO 2026-06-04 08:03:20 2.86 2.81 1.41% SPRO 2026-06-04 10:03:22 2.91 2.90 3.89% SPRO 2026-06-04 11:02:23 2.98 2.97 6.71% SPRO 2026-06-04 12:03:18 3.03 3.02 8.13% SPRO 2026-06-04 13:02:12 3.03 3.02 8.48% SPRO 2026-06-04 14:03:21 2.98 2.97 6.71% SPRO 2026-06-04 16:03:17 3.01 2.91 6.79% SPRO 2026-06-04 18:03:08 3.04 2.91 6.79% SPRO 2026-06-04 19:02:22 3.04 2.73 6.79% SPRO 2026-06-04 20:03:39 0.00 0.00 6.79% 2026-06-05 SPRO 2026-06-05 04:03:07 3.05 2.98 6.79% SPRO 2026-06-05 05:02:26 3.03 2.98 6.79% SPRO 2026-06-05 06:03:17 2.94 2.66 -1.43% SPRO 2026-06-05 07:02:21 3.00 2.66 1.07% SPRO 2026-06-05 08:03:14 3.03 2.83 1.07% SPRO 2026-06-05 10:03:14 2.94 2.93 -1.43% SPRO 2026-06-05 11:02:34 2.88 2.87 -3.57% SPRO 2026-06-05 12:03:56 2.85 2.84 -4.29% SPRO 2026-06-05 13:02:26 2.82 2.81 -5.71% SPRO 2026-06-05 14:03:25 2.80 2.79 -6.07% SPRO 2026-06-05 15:02:46 2.77 2.76 -7.14% SPRO 2026-06-05 16:03:16 3.02 2.63 -5.37% SPRO 2026-06-05 18:03:16 3.02 2.63 -6.04% SPRO 2026-06-05 19:02:36 3.02 2.81 -6.04% SPRO 2026-06-05 20:03:09 0.00 0.00 -6.04% 2026-06-08 SPRO 2026-06-08 04:03:20 3.06 2.57 0.00% SPRO 2026-06-08 05:02:25 3.06 2.74 0.00% SPRO 2026-06-08 06:03:28 3.00 2.74 0.00% SPRO 2026-06-08 07:02:18 2.94 2.83 0.00% SPRO 2026-06-08 08:03:20 2.89 2.83 2.01% SPRO 2026-06-08 09:59:54 Spero Therapeutics: Approval Upside, Commercial Friction (Initiating Hold) SPRO 2026-06-08 10:03:19 2.84 2.83 1.01% SPRO 2026-06-08 11:02:19 2.86 2.85 1.68% SPRO 2026-06-08 12:03:16 2.86 2.85 1.34% SPRO 2026-06-08 13:02:22 2.83 2.82 0.67% SPRO 2026-06-08 15:02:25 2.78 2.77 -1.34% SPRO 2026-06-08 16:03:27 2.86 2.71 -2.48% SPRO 2026-06-08 17:02:23 2.82 2.71 -2.48% SPRO 2026-06-08 18:03:10 2.86 2.71 -2.48% SPRO 2026-06-08 20:03:13 0.00 0.00 -2.48% 2026-06-09 SPRO 2026-06-09 04:03:20 3.20 2.47 -2.48% SPRO 2026-06-09 06:03:15 3.00 2.47 -2.48% SPRO 2026-06-09 07:02:23 2.77 2.69 0.00% SPRO 2026-06-09 08:03:18 2.80 2.50 -1.77% SPRO 2026-06-09 09:02:20 2.80 2.75 1.06% SPRO 2026-06-09 10:03:15 2.76 2.75 1.06% SPRO 2026-06-09 11:02:20 2.70 2.69 -1.42% SPRO 2026-06-09 12:03:21 2.61 2.60 -4.61% SPRO 2026-06-09 13:02:22 2.62 2.61 -4.61% SPRO 2026-06-09 14:03:21 2.66 2.65 -3.19% SPRO 2026-06-09 15:02:24 2.63 2.62 -3.90% SPRO 2026-06-09 16:03:18 2.67 2.57 -6.20% SPRO 2026-06-09 17:02:21 2.78 2.54 -2.92% SPRO 2026-06-09 19:02:15 2.83 2.54 -2.92% SPRO 2026-06-09 20:03:10 0.00 0.00 -2.92% 2026-06-10 SPRO 2026-06-10 04:03:16 2.86 2.37 -2.92% SPRO 2026-06-10 05:02:24 0.00 0.00 -2.92% SPRO 2026-06-10 06:03:16 3.07 0.00 -2.92% SPRO 2026-06-10 07:02:20 3.03 2.61 -2.92% SPRO 2026-06-10 08:03:14 3.01 2.61 5.11% SPRO 2026-06-10 09:02:22 2.95 2.61 5.11% SPRO 2026-06-10 10:03:13 2.59 2.58 1.09% SPRO 2026-06-10 11:02:19 2.52 2.50 -1.46% SPRO 2026-06-10 12:03:16 2.51 2.50 -1.82% SPRO 2026-06-10 13:02:21 2.54 2.52 -0.73% SPRO 2026-06-10 14:03:22 2.55 2.54 -0.73% SPRO 2026-06-10 15:02:27 2.52 2.50 -1.46% SPRO 2026-06-10 16:03:17 2.72 2.50 -0.78% SPRO 2026-06-10 17:02:16 2.94 2.50 -0.78% SPRO 2026-06-10 19:02:17 2.95 2.50 -0.78% SPRO 2026-06-10 20:03:19 0.00 0.00 2.72% 2026-06-11 SPRO 2026-06-11 04:03:17 2.64 2.50 2.72% SPRO 2026-06-11 05:02:20 3.07 2.50 1.95% SPRO 2026-06-11 06:03:14 2.70 2.50 1.95% SPRO 2026-06-11 07:02:18 2.66 2.56 4.28% SPRO 2026-06-11 08:03:12 2.62 2.56 4.28% SPRO 2026-06-11 09:02:21 2.63 2.50 3.50% SPRO 2026-06-11 10:03:14 2.63 2.62 3.50% SPRO 2026-06-11 11:02:21 2.71 2.70 6.61% SPRO 2026-06-11 13:02:18 2.68 2.67 5.06% SPRO 2026-06-11 14:03:22 2.71 2.70 6.61% SPRO 2026-06-11 15:02:26 2.75 2.74 8.17% SPRO 2026-06-11 16:03:21 2.78 2.52 6.69% SPRO 2026-06-11 17:02:32 2.78 2.69 8.27% SPRO 2026-06-11 18:03:15 2.78 2.70 8.27% SPRO 2026-06-11 19:02:23 2.78 2.69 8.27% SPRO 2026-06-11 20:03:18 0.00 0.00 8.27% 2026-06-12 SPRO 2026-06-12 04:03:37 3.03 2.61 8.27% SPRO 2026-06-12 06:03:26 2.99 2.61 8.27% SPRO 2026-06-12 07:02:19 2.99 2.71 8.27% SPRO 2026-06-12 08:03:16 2.76 2.71 8.27% SPRO 2026-06-12 09:02:27 3.05 2.71 8.27% SPRO 2026-06-12 10:03:14 2.77 2.76 2.76% SPRO 2026-06-12 11:02:26 2.80 2.79 4.33% SPRO 2026-06-12 12:03:23 2.78 2.77 3.54% SPRO 2026-06-12 13:02:21 2.80 2.79 4.33% SPRO 2026-06-12 15:02:20 2.81 2.80 4.33% SPRO 2026-06-12 16:03:13 2.85 2.76 5.56% SPRO 2026-06-12 18:03:13 2.85 2.82 5.56% SPRO 2026-06-12 19:02:23 2.85 2.74 5.56% SPRO 2026-06-12 20:03:14 0.00 0.00 5.56%