UPB
Upstream Bio, Inc. Common Stock
78 hedge funds and large institutions have $261M invested in Upstream Bio, Inc. Common Stock in 2025 Q1 according to their latest regulatory filings, with 24 funds opening new positions, 11 increasing their positions, 25 reducing their positions, and 15 closing their positions.
New
Increased
Maintained
Reduced
Closed
Holders
78
Holders Change
+8
Holders Change %
+11.43%
% of All Funds
1.06%
Holding in Top 10
4
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-33.33%
% of All Funds
0.05%
New
24
Increased
11
Reduced
25
Closed
15
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–
