Type / Class
Equity / Common Stock, par value $0.001 per share
Shares outstanding
54,284,692
Total 13F shares
42,073,968
Share change
-40
Total reported value
$257,482,560
Price per share
$6.12
Number of holders
76
Value change
-$17,702,263
Number of buys
33
Number of sells
39

Institutional Holders of Upstream Bio, Inc. - Common Stock, par value $0.001 per share (UPB) as of Q1 2025

As of 31 Mar 2025 Upstream Bio, Inc. - Common Stock, par value $0.001 per share (UPB) had 76 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC). These institutions held a total of 42,073,968 shares of stock of the company.
Largest 10 holders included FMR LLC, ORBIMED ADVISORS LLC, Decheng Capital LLC, TCG Crossover Management, LLC, ENAVATE SCIENCES GP, LLC, Deep Track Capital, LP, Bain Capital Life Sciences Investors, LLC, VR ADVISER, LLC, SAMSARA BIOCAPITAL, LLC, and Omega Fund Management, LLC.
This table shows 76 institutional shareholders of the security as of 31 Mar 2025.
Investor Option Weight % Change % Value $ * Price $ Shares Share Change Activity Report Period
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.