UPB
Upstream Bio, Inc. Common Stock
81 hedge funds and large institutions have $530M invested in Upstream Bio, Inc. Common Stock in 2025 Q2 according to their latest regulatory filings, with 14 funds opening new positions, 40 increasing their positions, 13 reducing their positions, and 10 closing their positions.
Holders
81
Holders Change
+3
Holders Change %
+3.85%
% of All Funds
1.09%
Holding in Top 10
4
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.05%
New
14
Increased
40
Reduced
13
Closed
10
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–
