Q3 2025 13F Holders as of 30 Sep 2025
-
Type / Class
-
Equity / Common Stock, par value $0.001 per share
-
Shares outstanding
-
54,284,692
-
Total 13F shares
-
44,461,719
-
Share change
-
-3,895,388
-
Total reported value
-
$836,327,467
-
Put/Call ratio
-
4.6%
-
Price per share
-
$18.81
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Number of holders
-
94
-
Value change
-
-$50,813,162
-
Number of buys
-
59
-
Number of sells
-
32
Institutional Holders of Upstream Bio, Inc. - Common Stock, par value $0.001 per share (UPB) as of Q3 2025
As of 30 Sep 2025 Upstream Bio, Inc. - Common Stock, par value $0.001 per share (UPB) had 94 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC).
These institutions held a total of 44,461,719 shares of stock of the company.
Largest 10 holders included FMR LLC, ORBIMED ADVISORS LLC, Decheng Capital LLC, BlackRock, Inc., ENAVATE SCIENCES GP, LLC, VANGUARD GROUP INC, Bain Capital Life Sciences Investors, LLC, TCG Crossover Management, LLC, Altshuler Shaham Ltd, and Omega Fund Management, LLC.
This table shows 94 institutional shareholders of the security as of 30 Sep 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.