UPSTREAM BIO INC

Ticker: UPB CUSIP: 91678A107 Class: Common Stock

SummitTX Capital, L.P.'s Holding History (CIK: 0002052310)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 116,724 Value ($000) $3,169 Avg Close $24.89 Range $18.05 - $33.00

Q3 2025

Shares 112,404 Value ($000) $2,114 Avg Close $15.54 Range $10.54 - $21.03

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	116,724	$3,169	$24.89	$18.05 - $33.00
Q3 2025	112,404	$2,114	$15.54	$10.54 - $21.03