$SPRO: Spero Therapeutics, Inc. - Common Stock
2026-06-08 SPRO 2026-06-08 00:09:22 0.00 0.00 -6.04% 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% 2026-06-15 SPRO 2026-06-15 04:03:19 3.18 2.63 5.56% SPRO 2026-06-15 05:02:18 2.95 2.88 1.85% SPRO 2026-06-15 07:02:21 2.95 2.88 2.59% SPRO 2026-06-15 08:03:16 2.97 2.92 2.59% SPRO 2026-06-15 10:03:19 2.92 2.91 2.59% SPRO 2026-06-15 11:02:29 2.93 2.92 3.33% SPRO 2026-06-15 12:03:25 2.92 2.91 2.59% SPRO 2026-06-15 14:03:18 2.86 2.85 0.37% SPRO 2026-06-15 15:02:20 2.88 2.87 1.11% SPRO 2026-06-15 16:03:14 2.94 2.89 2.46% SPRO 2026-06-15 17:02:27 2.93 2.89 2.46% SPRO 2026-06-15 18:03:12 2.94 2.89 3.16% SPRO 2026-06-15 19:02:17 2.94 2.91 3.16% SPRO 2026-06-15 20:03:09 0.00 0.00 3.16% 2026-06-16 SPRO 2026-06-16 04:03:14 3.22 2.88 1.75% SPRO 2026-06-16 05:02:24 3.19 2.88 1.05% SPRO 2026-06-16 07:02:28 3.07 2.95 1.05% SPRO 2026-06-16 08:03:18 3.08 2.93 1.05% SPRO 2026-06-16 09:02:21 2.95 2.90 1.05% SPRO 2026-06-16 10:03:14 2.85 2.84 -2.11% SPRO 2026-06-16 11:02:22 2.80 2.79 -3.51% SPRO 2026-06-16 12:03:16 2.81 2.80 -3.51% SPRO 2026-06-16 13:02:23 2.83 2.82 -2.81% SPRO 2026-06-16 14:03:12 2.87 2.86 -1.40% SPRO 2026-06-16 15:02:26 2.83 2.82 -2.81% SPRO 2026-06-16 16:03:16 2.85 2.80 -4.81% SPRO 2026-06-16 17:02:24 2.85 2.80 -2.41% SPRO 2026-06-16 18:03:11 2.85 2.81 -2.41% SPRO 2026-06-16 19:02:17 2.85 2.80 -3.44% SPRO 2026-06-16 20:03:12 0.00 0.00 -3.44% 2026-06-17 SPRO 2026-06-17 04:03:24 3.24 2.82 -3.44% SPRO 2026-06-17 05:02:18 2.87 2.79 3.09% SPRO 2026-06-17 06:03:16 3.00 2.86 7.22% SPRO 2026-06-17 07:02:28 3.00 2.85 3.09% SPRO 2026-06-17 08:03:11 2.94 2.89 3.78% SPRO 2026-06-17 09:02:24 2.94 2.85 3.09% SPRO 2026-06-17 10:03:13 2.61 2.60 -4.81% SPRO 2026-06-17 11:02:19 2.43 2.42 -12.03% SPRO 2026-06-17 12:03:13 2.30 2.29 -15.81% SPRO 2026-06-17 13:02:25 2.23 2.22 -18.56% SPRO 2026-06-17 14:03:19 2.14 2.12 -21.31% SPRO 2026-06-17 15:02:25 2.09 2.08 -23.37% SPRO 2026-06-17 16:03:15 2.25 2.10 -20.94% SPRO 2026-06-17 17:02:23 2.34 2.12 -18.77% SPRO 2026-06-17 18:03:13 2.32 2.25 -18.05% SPRO 2026-06-17 19:02:20 2.36 2.33 -14.80% SPRO 2026-06-17 20:03:12 0.00 0.00 -15.52% 2026-06-18 SPRO 2026-06-18 04:03:15 2.53 2.44 12.64% SPRO 2026-06-18 05:02:21 2.57 2.52 17.33% SPRO 2026-06-18 06:03:14 2.51 2.50 14.44% SPRO 2026-06-18 07:02:20 2.53 2.39 14.44% SPRO 2026-06-18 08:03:17 2.55 2.42 14.44% SPRO 2026-06-18 09:02:25 2.48 2.41 11.55% SPRO 2026-06-18 10:03:16 2.23 2.21 4.69% SPRO 2026-06-18 11:02:27 2.16 2.15 2.17% SPRO 2026-06-18 12:03:20 2.21 2.20 4.33% SPRO 2026-06-18 13:02:27 2.21 2.20 3.97% SPRO 2026-06-18 14:03:26 2.20 2.19 3.25% SPRO 2026-06-18 15:02:27 2.25 2.23 5.05% SPRO 2026-06-18 16:03:19 2.28 2.25 8.53% SPRO 2026-06-18 17:02:18 2.31 2.25 7.11% SPRO 2026-06-18 18:03:19 2.31 2.25 8.53% SPRO 2026-06-18 19:02:20 2.32 2.25 8.53% SPRO 2026-06-18 20:03:28 0.00 0.00 9.48% 2026-06-22 SPRO 2026-06-22 04:03:34 2.30 2.20 9.48% SPRO 2026-06-22 05:02:15 2.30 2.04 9.48% SPRO 2026-06-22 06:03:14 2.33 2.04 9.48% SPRO 2026-06-22 07:02:19 2.33 2.04 -0.47% SPRO 2026-06-22 08:03:13 2.33 2.15 -0.47% SPRO 2026-06-22 10:03:16 2.27 2.25 -0.47% SPRO 2026-06-22 11:02:23 2.28 2.27 0.47% SPRO 2026-06-22 12:03:21 2.27 2.25 0.47% SPRO 2026-06-22 13:02:24 2.26 2.25 -0.47% SPRO 2026-06-22 14:03:16 2.23 2.21 -2.37% SPRO 2026-06-22 15:05:20 2.18 2.17 -4.27% SPRO 2026-06-22 16:03:16 2.21 2.15 -2.63% SPRO 2026-06-22 17:02:24 2.23 2.20 -3.07% SPRO 2026-06-22 18:03:16 2.23 2.16 -3.07% SPRO 2026-06-22 19:02:20 2.23 2.17 -3.95% SPRO 2026-06-22 20:03:12 0.00 0.00 -3.95% 2026-06-23 SPRO 2026-06-23 04:03:14 2.42 2.08 -3.95% SPRO 2026-06-23 05:02:26 2.39 2.08 -3.95% SPRO 2026-06-23 06:03:18 2.23 2.21 0.00% SPRO 2026-06-23 07:02:21 2.23 2.19 0.00% SPRO 2026-06-23 08:03:20 2.23 2.16 -1.75% SPRO 2026-06-23 09:02:27 2.23 2.16 -0.88% SPRO 2026-06-23 10:03:17 2.23 2.21 1.32% SPRO 2026-06-23 11:02:25 2.23 2.22 1.32% SPRO 2026-06-23 12:03:21 2.21 2.20 0.00% SPRO 2026-06-23 13:02:23 2.23 2.21 0.88% SPRO 2026-06-23 14:03:10 2.19 2.18 -0.88% SPRO 2026-06-23 15:02:26 2.17 2.16 -1.75% SPRO 2026-06-23 16:03:16 2.25 2.15 -2.71% SPRO 2026-06-23 17:02:25 2.25 2.16 -2.71% SPRO 2026-06-23 18:03:17 2.25 2.15 -1.81% SPRO 2026-06-23 20:03:37 0.00 0.00 -1.81% 2026-06-24 SPRO 2026-06-24 04:03:26 2.23 1.97 -1.81% SPRO 2026-06-24 05:02:21 2.23 2.14 -1.81% SPRO 2026-06-24 06:03:19 2.17 2.14 -1.81% SPRO 2026-06-24 07:02:16 2.20 2.14 0.00% SPRO 2026-06-24 08:03:14 2.18 2.12 -0.90% SPRO 2026-06-24 09:02:17 2.25 2.15 0.90% SPRO 2026-06-24 10:03:14 2.21 2.20 3.17% SPRO 2026-06-24 13:02:34 2.18 2.17 1.81% SPRO 2026-06-24 14:03:22 2.17 2.16 1.36% SPRO 2026-06-24 15:02:27 2.14 2.12 0.00% SPRO 2026-06-24 16:03:22 2.21 2.10 -0.93% SPRO 2026-06-24 19:02:22 2.18 2.10 -0.93% SPRO 2026-06-24 20:03:18 0.00 0.00 -0.93% 2026-06-25 SPRO 2026-06-25 04:03:22 2.21 1.91 -0.93% SPRO 2026-06-25 06:03:25 2.18 1.91 -0.47% SPRO 2026-06-25 07:02:25 2.12 1.91 -0.47% SPRO 2026-06-25 08:03:19 2.11 2.02 -0.47% SPRO 2026-06-25 09:02:20 2.12 2.08 0.47% SPRO 2026-06-25 10:03:18 2.11 2.10 0.47% SPRO 2026-06-25 12:03:16 2.06 2.04 -1.86% SPRO 2026-06-25 13:02:21 2.04 2.02 -2.79% SPRO 2026-06-25 14:03:17 2.05 2.04 -2.33% SPRO 2026-06-25 15:06:47 2.04 2.02 -2.79% SPRO 2026-06-25 16:03:13 2.08 2.00 -3.81% SPRO 2026-06-25 17:08:23 8-K Sec report https://www.sec.gov/Archives/edgar/data/1701108/000119312526283033/0001193125-26-283033-index.htm 8-K - Spero Therapeutics, Inc. (0001701108) (Filer) SPRO 2026-06-25 20:03:17 0.00 0.00 -3.81% 2026-06-26 SPRO 2026-06-26 04:03:17 2.08 2.00 -3.81% SPRO 2026-06-26 06:03:15 2.21 2.00 -3.81% SPRO 2026-06-26 08:03:16 2.09 2.00 -3.81% SPRO 2026-06-26 10:03:16 2.07 2.06 2.38% SPRO 2026-06-26 11:02:22 2.11 2.10 4.29% SPRO 2026-06-26 12:03:22 2.13 2.12 5.24% SPRO 2026-06-26 13:02:26 2.26 2.25 10.95% SPRO 2026-06-26 14:03:21 2.25 2.24 10.95% SPRO 2026-06-26 15:02:32 2.32 2.31 14.29% SPRO 2026-06-26 16:03:17 2.29 2.21 11.39% SPRO 2026-06-26 17:02:27 2.29 2.19 13.37% SPRO 2026-06-26 19:02:33 2.29 2.10 13.37% SPRO 2026-06-26 20:03:21 0.00 0.00 13.37% 2026-06-29 SPRO 2026-06-29 04:03:14 2.48 2.18 13.37% SPRO 2026-06-29 05:02:22 2.48 2.18 -0.99% SPRO 2026-06-29 07:02:33 2.26 2.18 -0.99% SPRO 2026-06-29 08:03:21 2.29 2.24 0.00% SPRO 2026-06-29 09:02:24 2.30 2.24 0.00% SPRO 2026-06-29 10:03:17 2.31 2.29 2.48% SPRO 2026-06-29 11:02:22 2.29 2.27 1.49% SPRO 2026-06-29 12:03:16 2.29 2.27 1.98% SPRO 2026-06-29 13:02:28 2.28 2.27 1.49% SPRO 2026-06-29 14:03:36 2.29 2.27 1.98% SPRO 2026-06-29 15:02:34 2.28 2.27 1.49% SPRO 2026-06-29 16:03:27 2.30 2.23 0.44% SPRO 2026-06-29 17:02:26 2.48 2.23 0.44% SPRO 2026-06-29 19:02:24 2.45 2.23 0.44% SPRO 2026-06-29 20:03:25 0.00 0.00 0.44% 2026-06-30 SPRO 2026-06-30 04:03:44 2.45 2.17 0.44% SPRO 2026-06-30 06:03:22 2.45 2.06 0.44% SPRO 2026-06-30 07:02:28 2.45 2.24 0.44% SPRO 2026-06-30 08:03:16 2.45 2.23 0.00% SPRO 2026-06-30 09:02:27 2.30 2.24 0.00% SPRO 2026-06-30 10:03:29 2.26 2.25 0.44% SPRO 2026-06-30 11:02:24 2.25 2.24 0.00% SPRO 2026-06-30 12:03:28 2.25 2.23 -0.44% SPRO 2026-06-30 14:03:16 2.23 2.22 -0.88% SPRO 2026-06-30 16:03:22 2.32 2.20 -1.77% SPRO 2026-06-30 17:02:32 2.32 2.18 -1.77% SPRO 2026-06-30 18:03:16 2.32 2.22 -1.77% SPRO 2026-06-30 19:02:27 2.43 2.20 -1.77% SPRO 2026-06-30 20:03:21 0.00 0.00 -1.77% 2026-07-01 SPRO 2026-07-01 04:03:23 2.46 2.00 -1.77% SPRO 2026-07-01 07:02:25 2.26 2.02 -1.77% SPRO 2026-07-01 08:03:17 2.34 2.02 -1.77% SPRO 2026-07-01 09:02:19 2.34 2.00 -1.77% SPRO 2026-07-01 10:03:21 2.26 2.25 2.65% SPRO 2026-07-01 11:02:25 2.25 2.24 2.21% SPRO 2026-07-01 14:03:24 2.25 2.23 1.77% SPRO 2026-07-01 15:02:19 2.23 2.22 1.33% SPRO 2026-07-01 16:03:14 2.25 2.18 1.36% SPRO 2026-07-01 18:03:14 2.25 2.18 2.26% SPRO 2026-07-01 20:03:19 0.00 0.00 2.26% 2026-07-02 SPRO 2026-07-02 04:03:23 2.45 2.00 2.26% SPRO 2026-07-02 07:02:22 2.45 2.20 2.26% SPRO 2026-07-02 08:03:22 2.44 2.18 2.26% SPRO 2026-07-02 09:02:24 2.67 2.18 2.26% SPRO 2026-07-02 10:03:21 2.25 2.24 1.36% SPRO 2026-07-02 11:02:24 2.23 2.21 -0.45% SPRO 2026-07-02 12:03:24 2.21 2.20 -0.45% SPRO 2026-07-02 13:02:30 2.18 2.17 -1.81% SPRO 2026-07-02 14:03:22 2.16 2.15 -2.71% SPRO 2026-07-02 15:02:25 2.17 2.16 -2.71% SPRO 2026-07-02 16:03:10 2.28 2.16 -0.90% SPRO 2026-07-02 17:02:25 2.23 2.16 -0.90% SPRO 2026-07-02 18:03:19 2.28 2.00 -0.90% SPRO 2026-07-02 19:02:19 2.28 2.02 -0.90% SPRO 2026-07-02 20:03:23 0.00 0.00 -0.90% 2026-07-06 SPRO 2026-07-06 04:03:07 2.50 1.93 -0.90% SPRO 2026-07-06 05:02:07 2.36 1.93 -0.90% SPRO 2026-07-06 06:03:09 2.50 2.00 -0.90% SPRO 2026-07-06 07:02:13 2.46 2.18 -0.90% SPRO 2026-07-06 08:03:09 2.23 1.99 -0.90% SPRO 2026-07-06 09:02:14 2.25 2.17 -0.90% SPRO 2026-07-06 10:03:10 2.17 2.16 -1.35% SPRO 2026-07-06 11:02:15 2.19 2.18 -0.45% SPRO 2026-07-06 14:03:14 2.20 2.19 0.00% SPRO 2026-07-06 15:02:21 2.19 2.18 -0.45% SPRO 2026-07-06 16:03:07 2.20 2.10 -0.91% SPRO 2026-07-06 17:02:26 2.20 1.99 -0.91% SPRO 2026-07-06 19:02:17 2.20 2.18 -0.91% SPRO 2026-07-06 20:03:15 0.00 0.00 -0.91% 2026-07-07 SPRO 2026-07-07 04:03:11 2.37 1.93 -0.91% SPRO 2026-07-07 05:02:06 2.37 2.04 -0.91% SPRO 2026-07-07 06:03:16 2.37 2.12 -0.91% SPRO 2026-07-07 07:02:15 2.20 2.10 -0.91% SPRO 2026-07-07 08:04:09 2.20 2.12 -0.91% SPRO 2026-07-07 09:02:11 2.20 1.73 -0.91% SPRO 2026-07-07 10:03:14 2.16 2.15 -0.91% SPRO 2026-07-07 11:02:12 2.15 2.14 -1.82% SPRO 2026-07-07 12:02:59 2.18 2.17 0.00% SPRO 2026-07-07 13:02:14 2.19 2.18 0.00% SPRO 2026-07-07 14:03:12 2.17 2.16 -0.91%