Spero Therapeutics, Inc. - Common Stock (SPRO)

Historical Prices For Spero Therapeutics, Inc. - Common Stock (SPRO)

Date Range:

2025-07-24 - 2025-10-24

Date	Open	High	Low	Close	Volume	Adjusted Close
10/23/2025	2.24	2.28	2.16	2.20	667,248	2.20
10/22/2025	2.30	2.32	2.24	2.25	1,161,515	2.25
10/21/2025	2.31	2.50	2.30	2.37	12,738,922	2.37
10/20/2025	2.22	2.32	2.22	2.29	376,862	2.29
10/17/2025	2.31	2.32	2.21	2.21	619,037	2.21
10/16/2025	2.50	2.52	2.34	2.35	485,790	2.35
10/15/2025	2.40	2.49	2.36	2.49	593,716	2.49
10/14/2025	2.24	2.38	2.24	2.36	449,224	2.36
10/13/2025	2.35	2.41	2.24	2.29	552,594	2.29
10/10/2025	2.38	2.41	2.25	2.25	822,415	2.25
10/09/2025	2.35	2.42	2.32	2.36	591,432	2.36
10/08/2025	2.18	2.35	2.18	2.28	795,756	2.28
10/07/2025	2.08	2.19	2.06	2.16	748,332	2.16
10/06/2025	2.04	2.13	2.02	2.09	383,357	2.09
10/03/2025	2.01	2.09	1.99	2.05	379,982	2.05
10/02/2025	1.99	2.04	1.94	2.03	204,086	2.03
10/01/2025	1.89	1.98	1.89	1.96	391,030	1.96
9/30/2025	1.91	1.91	1.84	1.88	385,870	1.88
9/29/2025	1.89	1.93	1.88	1.90	158,728	1.90
9/26/2025	1.93	1.96	1.87	1.89	397,502	1.89
9/25/2025	1.98	1.98	1.91	1.94	249,615	1.94
9/24/2025	2.02	2.04	1.97	1.97	256,042	1.97
9/23/2025	2.00	2.05	1.98	2.01	193,102	2.01
9/22/2025	2.01	2.03	1.97	2.03	345,958	2.03
9/19/2025	2.02	2.05	1.96	2.00	393,615	2.00
9/18/2025	1.90	2.01	1.90	2.00	273,192	2.00
9/17/2025	1.89	1.95	1.89	1.90	148,632	1.90
9/16/2025	1.88	1.91	1.87	1.90	133,679	1.90
9/15/2025	1.91	1.92	1.87	1.88	305,349	1.88
9/12/2025	1.96	1.99	1.89	1.90	391,232	1.90
9/11/2025	1.94	2.02	1.94	1.95	286,685	1.95
9/10/2025	1.99	2.02	1.91	1.94	357,306	1.94
9/09/2025	1.96	2.01	1.94	1.98	223,066	1.98
9/08/2025	2.16	2.18	1.86	2.00	520,969	2.00
9/05/2025	2.14	2.17	2.13	2.15	175,508	2.15
9/04/2025	2.08	2.19	2.06	2.14	520,743	2.14
9/03/2025	2.06	2.12	2.04	2.08	291,283	2.08
9/02/2025	2.04	2.12	2.03	2.05	417,019	2.05
8/29/2025	2.01	2.07	2.00	2.07	396,975	2.07
8/28/2025	1.97	2.04	1.96	2.00	254,921	2.00
8/27/2025	1.85	2.01	1.85	1.98	554,715	1.98
8/26/2025	1.83	1.88	1.83	1.85	161,205	1.85
8/25/2025	1.89	1.90	1.84	1.85	192,372	1.85
8/22/2025	1.89	1.94	1.86	1.87	302,539	1.87
8/21/2025	1.81	1.90	1.81	1.86	536,252	1.86
8/20/2025	1.81	1.85	1.80	1.83	441,473	1.83
8/19/2025	1.88	1.91	1.83	1.84	367,449	1.84
8/18/2025	1.91	1.94	1.89	1.91	521,166	1.91
8/15/2025	1.95	1.96	1.85	1.91	1,046,944	1.91
8/14/2025	1.92	2.00	1.92	1.98	626,243	1.98
8/13/2025	2.15	2.15	1.92	1.94	2,491,091	1.94
8/12/2025	2.21	2.38	2.21	2.36	657,188	2.36
8/11/2025	2.19	2.23	2.15	2.20	360,239	2.20
8/08/2025	2.16	2.23	2.16	2.19	402,219	2.19
8/07/2025	2.25	2.27	2.13	2.17	1,003,308	2.17
8/06/2025	2.15	2.31	2.15	2.26	817,747	2.26
8/05/2025	2.29	2.33	2.11	2.12	2,317,529	2.12
8/04/2025	2.32	2.39	2.20	2.26	950,319	2.26
8/01/2025	2.26	2.33	2.22	2.30	518,730	2.30
7/31/2025	2.17	2.44	2.17	2.32	917,355	2.32
7/30/2025	2.25	2.26	2.16	2.17	485,050	2.17
7/29/2025	2.29	2.31	2.17	2.20	879,107	2.20
7/28/2025	2.30	2.35	2.29	2.30	295,620	2.30
7/25/2025	2.34	2.40	2.32	2.33	350,749	2.33