Spero Therapeutics Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
May 28, 2026	2.93	2.97	2.91	2.98	-	1.71%	147,238
May 27, 2026	2.86	3.08	2.81	2.93	2.93	2.45%	1,768,817
May 26, 2026	2.80	2.95	2.76	2.86	2.86	3.62%	1,515,472
May 22, 2026	2.71	2.85	2.69	2.76	2.76	2.60%	545,468
May 21, 2026	2.63	2.71	2.56	2.69	2.69	2.28%	432,934
May 20, 2026	2.59	2.65	2.55	2.63	2.63	1.54%	319,553
May 19, 2026	2.52	2.62	2.50	2.59	2.59	0.39%	316,258
May 18, 2026	2.77	2.79	2.57	2.58	2.58	-7.53%	912,013
May 15, 2026	2.71	2.89	2.69	2.79	2.79	1.09%	938,966
May 14, 2026	2.44	2.76	2.37	2.76	2.76	13.11%	1,606,705
May 13, 2026	2.56	2.56	2.43	2.44	2.44	-3.94%	675,027
May 12, 2026	2.51	2.56	2.48	2.54	2.54	-0.39%	350,939
May 11, 2026	2.62	2.67	2.54	2.55	2.55	-0.39%	431,855
May 8, 2026	2.52	2.58	2.49	2.56	2.56	1.99%	355,975
May 7, 2026	2.54	2.62	2.50	2.51	2.51	-0.79%	566,249
May 6, 2026	2.47	2.57	2.44	2.53	2.53	4.55%	620,277
May 5, 2026	2.51	2.59	2.41	2.42	2.42	-3.20%	506,928
May 4, 2026	2.50	2.61	2.46	2.50	2.50	0.81%	462,338
May 1, 2026	2.54	2.63	2.48	2.48	2.48	-1.20%	494,431
Apr 30, 2026	2.50	2.58	2.50	2.51	2.51	-0.79%	363,858
Apr 29, 2026	2.65	2.66	2.47	2.53	2.53	-5.24%	828,454
Apr 28, 2026	2.68	2.73	2.67	2.67	2.67	-	219,094
Apr 27, 2026	2.74	2.75	2.67	2.67	2.67	-2.55%	322,735
Apr 24, 2026	2.82	2.82	2.74	2.74	2.74	-2.14%	346,529
Apr 23, 2026	2.86	2.91	2.79	2.80	2.80	-2.10%	297,031
Apr 22, 2026	2.84	2.93	2.84	2.86	2.86	2.14%	319,737
Apr 21, 2026	2.82	2.82	2.74	2.80	2.80	-1.41%	266,215
Apr 20, 2026	2.73	2.86	2.71	2.84	2.84	3.27%	395,812
Apr 17, 2026	2.71	2.78	2.65	2.75	2.75	2.61%	381,209
Apr 16, 2026	2.64	2.71	2.62	2.68	2.68	1.52%	552,122
Apr 15, 2026	2.78	2.80	2.63	2.64	2.64	-5.04%	696,141
Apr 14, 2026	2.84	2.88	2.76	2.78	2.78	-	603,729
Apr 13, 2026	2.67	2.86	2.67	2.78	2.78	4.12%	614,602
Apr 10, 2026	2.80	2.80	2.63	2.67	2.67	-3.96%	786,982
Apr 9, 2026	2.72	2.80	2.67	2.78	2.78	2.21%	450,193
Apr 8, 2026	2.70	2.75	2.61	2.72	2.72	1.87%	426,784
Apr 7, 2026	2.59	2.69	2.48	2.67	2.67	2.30%	693,208
Apr 6, 2026	2.44	2.61	2.44	2.61	2.61	7.41%	478,894
Apr 2, 2026	2.41	2.45	2.38	2.43	2.43	-0.82%	214,374
Apr 1, 2026	2.35	2.48	2.34	2.45	2.45	4.70%	402,251
Mar 31, 2026	2.29	2.36	2.21	2.34	2.34	4.46%	485,409
Mar 30, 2026	2.39	2.43	2.24	2.24	2.24	-3.86%	314,027
Mar 27, 2026	2.30	2.44	2.28	2.33	2.33	-1.69%	498,713
Mar 26, 2026	2.39	2.48	2.34	2.37	2.37	-1.66%	482,614
Mar 25, 2026	2.39	2.46	2.37	2.41	2.41	1.69%	189,257
Mar 24, 2026	2.29	2.47	2.29	2.37	2.37	0.85%	394,992
Mar 23, 2026	2.37	2.41	2.33	2.35	2.35	-0.84%	176,547
Mar 20, 2026	2.47	2.47	2.35	2.37	2.37	-4.05%	235,757
Mar 19, 2026	2.45	2.48	2.38	2.47	2.47	0.41%	201,826
Mar 18, 2026	2.58	2.58	2.40	2.46	2.46	-4.65%	351,569