Upstream Bio, Inc. - UPB - Stock Historical Data & Price

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
February 27, 2026	7.87	7.68	7.68	8.07	7.62	1.44M
February 26, 2026	7.74	7.9	7.9	8.32	7.7	1.5M
February 25, 2026	7.9	7.74	7.74	8.1	7.7	987,847
February 24, 2026	8.05	7.92	7.92	8.27	7.78	1.54M
February 23, 2026	8.09	8.02	8.02	8.32	7.74	1.63M
February 20, 2026	8.41	8.08	8.08	8.69	8.01	3.6M
February 19, 2026	8.32	8.54	8.54	8.73	8.14	1.92M
February 18, 2026	8.18	8.29	8.29	8.66	7.93	2.88M
February 17, 2026	8.69	8.33	8.33	9	7.96	6.03M
February 13, 2026	12.69	8.75	8.75	12.69	8.52	6.5M
February 12, 2026	14.86	12.8	12.8	14.86	12.75	3.87M
February 11, 2026	19	14.69	14.69	20.01	12.65	8.85M
February 10, 2026	26.1	27.81	27.81	28.58	25.93	760,119
February 09, 2026	26.24	26.12	26.12	26.24	25.16	509,701
February 06, 2026	26.56	26.2	26.2	27.98	25.94	517,906
February 05, 2026	29.4	26	26	30.31	25.87	619,509
February 04, 2026	30.88	29.38	29.38	30.88	28.35	610,504
February 03, 2026	30.38	30.79	30.79	31.05	29.82	635,741
February 02, 2026	31.1	29.94	29.94	32.38	29.64	783,100
January 30, 2026	30.64	31.08	31.08	31.37	29.71	667,528
January 29, 2026	30.3	30.94	30.94	31.12	29.61	459,682
January 28, 2026	32.5	30.43	30.43	32.5	29.99	658,138
January 27, 2026	30.24	32.5	32.5	32.83	30.13	1.07M
January 26, 2026	29.77	30.16	30.16	30.91	29.76	545,748
January 23, 2026	31.62	30.02	30.02	31.62	29.83	366,709
January 22, 2026	31.74	31.79	31.79	32.52	31.7	402,500
January 21, 2026	30.95	31.59	31.59	32.14	30.31	468,400
January 20, 2026	30.22	31	31	31.52	29.08	774,100
January 16, 2026	31.11	31	31	31.64	29.8	349,641
January 15, 2026	32.42	30.9	30.9	32.42	30.8	698,145
January 14, 2026	32.68	32.3	32.3	33.68	31.95	621,000
January 13, 2026	31.71	32.6	32.6	32.66	30.48	834,721
January 12, 2026	29.73	31.66	31.66	31.93	29.34	679,000
January 09, 2026	27.87	29.75	29.75	30.6	27.87	851,461
January 08, 2026	27.71	27.54	27.54	28.49	27.22	502,764
January 07, 2026	26.08	28.08	28.08	28.16	26.08	700,323
January 06, 2026	25.93	25.87	25.87	26.52	25	452,806
January 05, 2026	27.07	26.13	26.13	27.39	25.25	689,800
January 02, 2026	27.3	27.07	27.07	28.01	26.72	585,992
December 31, 2025	27.17	27.15	27.15	27.58	26.86	517,846
December 30, 2025	28.77	27.32	27.32	28.77	26.86	831,500
December 29, 2025	29.48	28.83	28.83	29.92	28.7	238,342
December 26, 2025	30.11	29.48	29.48	30.11	29.1	228,014
December 24, 2025	29.65	30.27	30.27	30.76	29.6	266,500
December 23, 2025	30.27	29.21	29.21	30.76	29.05	347,234
December 22, 2025	29.53	30.43	30.43	30.89	29	676,221
December 19, 2025	30.01	29.35	29.35	30.56	29.19	1.46M
December 18, 2025	29.09	29.86	29.86	30.27	28.36	795,736
December 17, 2025	29.41	28.33	28.33	29.95	28.15	439,700
December 16, 2025	26.92	29.32	29.32	29.73	26.03	932,300
December 15, 2025	27.56	27.2	27.2	27.95	26.68	1.17M
December 12, 2025	28.23	27.15	27.15	28.25	26.78	268,803
December 11, 2025	28.72	27.47	27.47	29.51	27.16	661,765
December 10, 2025	28.37	28.67	28.67	29.55	27.93	342,300
December 09, 2025	28.73	28.37	28.37	29.17	27.99	403,427
December 08, 2025	28.03	28.97	28.97	29.5	27.91	345,155
December 05, 2025	27.82	27.75	27.75	28.43	27.16	393,225
December 04, 2025	26.69	27.74	27.74	28.45	26.69	568,500
December 03, 2025	25.01	26.97	26.97	27.15	24.94	497,300
December 02, 2025	29.61	25.01	25.01	29.89	24.61	839,176

Upstream Bio, Inc. (UPB) NASDAQ