SB
UPB

Samsara BioCapital’s Upstream Bio, Inc. Common Stock UPB Stock Holding History

Samsara BioCapital’s Portfolio UPB Stock Details UPB Fund Activity
Quarter Market Value Status Shares Shares
Change % 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		$15.8M Sell
1,443,231
-623,915
-30% -$6.85M 3.24% 7
2025
Q1 		$12.7M Sell
2,067,146
-150,000
-7% -$918K 2.26% 10
2024
Q4 		$36.4M Buy
+2,217,146
New +$36.4M 5% 6