NASDAQ · UPB

Upstream Bio, Inc.

Healthcare · Biotechnology

$3.35

Up+$0.04 (+1.19%)

Updated Nov 4, 2026, 1:55 AM

SID Score

3.3/10

Composite research score

Smart Money

—

Institutional and insider signal

Price performance · UPB

UPB price history

1M range · 20 trading sessions · Daily adjusted prices

Prices through Nov 2, 2026

Daily close

View OHLC price history

UPB OHLC price history, latest 40 sessions
Date	Open	High	Low	Close	Volume
Nov 2, 2026	$3.42	$3.46	$3.16	$3.35	937.43K
Oct 30, 2026	$3.26	$3.425	$3.15	$3.41	946.12K
Oct 29, 2026	$3.00	$3.32	$2.97	$3.27	1.18M
Oct 28, 2026	$2.78	$2.99	$2.68	$2.98	1.32M
Oct 27, 2026	$2.76	$2.935	$2.68	$2.79	1.18M
Oct 26, 2026	$2.75	$2.97	$2.72	$2.75	983.84K
Oct 23, 2026	$2.95	$2.96	$2.695	$2.74	1.05M
Oct 22, 2026	$2.77	$2.99	$2.70	$2.99	1.45M
Oct 21, 2026	$2.83	$2.975	$2.765	$2.80	1.41M
Oct 20, 2026	$2.79	$3.09	$2.78	$2.82	1.68M
Oct 19, 2026	$2.76	$3.07	$2.75	$2.80	1.6M
Oct 16, 2026	$3.39	$3.39	$2.74	$2.76	1.84M
Oct 15, 2026	$3.44	$3.555	$3.285	$3.37	1.29M
Oct 14, 2026	$3.475	$3.60	$3.29	$3.42	1.57M
Oct 13, 2026	$4.14	$4.155	$3.52	$3.55	1.04M
Oct 12, 2026	$4.68	$4.72	$4.12	$4.17	848.41K
Oct 9, 2026	$4.54	$4.76	$4.51	$4.70	1.19M
Oct 8, 2026	$4.53	$4.65	$4.365	$4.55	2.86M
Oct 7, 2026	$4.55	$4.72	$4.50	$4.61	908.4K
Oct 6, 2026	$4.84	$4.865	$4.53	$4.59	1.06M