California State Teachers Retirement System (CalSTRS)
UPB

California State Teachers Retirement System (CalSTRS)’s Upstream Bio, Inc. Common Stock UPB Stock Holding History

California State Teachers Retirement System (CalSTRS)’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
Q2 		$23.9K Buy
2,174
+884
+69% +$9.71K ﹤0.01% 2453
2025
Q1 		$7.9K Hold
1,290
– – ﹤0.01% 2837
2024
Q4 		$21.2K Buy
+1,290
New +$21.2K ﹤0.01% 2585