Balyasny Asset Management
UPB

Balyasny Asset Management’s Upstream Bio, Inc. Common Stock UPB Stock Holding History

Balyasny Asset Management’s Portfolio UPB Stock Details UPB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change % 		Capital Flow Portfolio Weight Portfolio Position
2025
Q1 		– Sell
-301,152
Closed -$4.95M – 2493
2024
Q4 		$4.95M Buy
+301,152
New +$4.95M 0.01% 853