Generation Bio Co. - COMMON STOCK (GBIO)

Q4 2025 13F Holders as of 31 Dec 2025

Type / Class
Equity / COMMON STOCK
Shares outstanding
6,762,613
Total 13F shares
4,312,052
Share change
+531,035
Total reported value
$24,490,431
Price per share
$5.68
Number of holders
45
Value change
+$2,886,466
Number of buys
21
Number of sells
15

Institutional Holders of Generation Bio Co. - COMMON STOCK (GBIO) as of Q4 2025

As of 31 Dec 2025, Generation Bio Co. - COMMON STOCK (GBIO) was held by 45 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 4,312,052 shares. The largest 10 holders included Atlas Venture Life Science Advisors, LLC, SymBiosis Capital Partners, LLC, Opaleye Management Inc., RENAISSANCE TECHNOLOGIES LLC, VANGUARD GROUP INC, PRICE T ROWE ASSOCIATES INC /MD/, Siren, L.L.C., UBS Group AG, MORGAN STANLEY, and MARSHALL WACE, LLP. This page lists 45 institutional shareholders reporting positions in this security for the Q4 2025 filing period.
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.