Zenas BioPharma, Inc. (ZBIO) NASDAQ

Currency In USD

ZBIO Historical Return

If you invested $1000 in Zenas BioPharma, Inc. (ZBIO) since IPO date, it would be worth $1,796.88 as of August 23, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 6 months ago would be worth $1,235.27, while $1000 invested 3 months ago would be worth $1,723.97. This corresponds to total returns of 79.69%, 23.53%, 72.4%, respectively, with annualized returns of 35.39%, 23.53%, 72.4%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

ZBIO Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
August 21, 2026	31.83	32.29	32.29	32.79	31.45	808,696
August 20, 2026	30.72	31.62	31.62	32.2	29.5	1.17M
August 19, 2026	32.8	31.25	31.25	32.89	30.92	2.7M
August 18, 2026	30.22	31.91	31.91	31.96	30.22	659,790
August 17, 2026	29.95	30.5	30.5	30.81	28.72	490,105
August 14, 2026	28.76	29.51	29.51	30.31	28.16	630,043
August 13, 2026	30.39	29.2	29.2	31	27.81	881,376
August 12, 2026	32.05	31.29	31.29	32.97	31.12	461,554
August 11, 2026	31.43	32.44	32.44	32.88	30.71	1.07M
August 10, 2026	32.24	31.99	31.99	32.7	31.61	409,915
August 07, 2026	32.85	32.43	32.43	33.08	31.65	264,044
August 06, 2026	31.51	32.17	32.17	33	31.32	676,926
August 05, 2026	31.93	31.86	31.86	32.38	31.23	410,965
August 04, 2026	31.09	31.42	31.42	31.73	30.45	378,123
August 03, 2026	32.08	31.13	31.13	32.18	30.33	429,200
July 31, 2026	32.69	31.44	31.44	32.95	30.6	452,226
July 30, 2026	31.37	32.27	32.27	32.96	30.75	737,992
July 29, 2026	32.43	31.09	31.09	32.43	30.25	625,603
July 28, 2026	32.64	32.29	32.29	33.3	31.81	773,297
July 27, 2026	30.91	32.82	32.82	33.42	30.85	1.15M
July 23, 2026	31.04	30.99	30.99	31.56	30.3	402,039
July 22, 2026	32.15	31.49	31.49	32.35	31.01	1.17M
July 21, 2026	31	32.36	32.36	34.05	30.77	1.63M
July 20, 2026	29.68	30.7	30.7	31.62	29.01	884,358
July 17, 2026	28.07	29.53	29.53	30.26	27.71	769,419
July 16, 2026	29.36	28.24	28.24	29.58	27.52	884,131
July 15, 2026	28.46	29.41	29.41	29.48	27.46	611,145
July 14, 2026	28.42	28.78	28.78	28.94	27.39	692,276
July 13, 2026	28.23	27.88	27.88	28.69	27.34	857,088
July 10, 2026	29.43	28.74	28.74	29.43	26.95	947,723
July 09, 2026	28.77	29.43	29.43	30	28.76	671,147
July 08, 2026	27.36	28.77	28.77	28.84	26.55	795,849
July 07, 2026	26.49	27.68	27.68	27.9	25.88	897,927
July 06, 2026	26.9	26.45	26.45	27.54	26.41	605,317
July 02, 2026	28.08	27.23	27.23	29.25	27.09	1.38M
July 01, 2026	25.49	28	28	29	25.48	2.34M
June 30, 2026	25.9	25.38	25.38	25.9	25.13	867,667
June 29, 2026	25.87	25.55	25.55	25.94	24.76	1.25M
June 26, 2026	24.26	25.87	25.87	26	23.9	3.5M
June 25, 2026	21.96	24.67	24.67	24.92	21.94	1.59M
June 24, 2026	20.23	21.8	21.8	22.05	20.13	788,353
June 23, 2026	20.54	20.2	20.2	21.25	20.18	513,353
June 22, 2026	20.2	20.8	20.8	20.97	19.99	643,181
June 18, 2026	18.93	19.78	19.78	19.88	18.72	2.13M
June 17, 2026	18.29	18.58	18.58	19.13	18.06	602,622
June 16, 2026	18.76	18.19	18.19	19.43	17.87	392,132
June 15, 2026	20.61	18.71	18.71	20.87	18.27	511,850
June 12, 2026	17.78	19.8	19.8	20.1	17.77	1.32M
June 11, 2026	18.07	17.76	17.76	18.39	17.53	606,933
June 10, 2026	18.42	17.91	17.91	19	17.74	432,797
June 09, 2026	17.79	18.42	18.42	18.55	17.38	334,256
June 08, 2026	17.5	17.61	17.61	17.9	16.77	504,605
June 05, 2026	18.33	17.47	17.47	18.92	17.4	493,895
June 04, 2026	17.47	18.38	18.38	19	17.4	508,432
June 03, 2026	17.16	17.4	17.4	17.78	17.05	410,351
June 02, 2026	17.78	17.13	17.13	18.11	16.9	632,553
June 01, 2026	18.2	18.17	18.17	18.6	17.34	636,660
May 29, 2026	18.56	18.4	18.4	19	18.14	724,693
May 28, 2026	18.28	18.56	18.56	19.16	17.77	724,145
May 27, 2026	18.68	18.09	18.09	19	18	303,305