Generation Bio Co. - COMMON STOCK (GBIO)

Q3 2025 13F Holders as of 30 Sep 2025

Type / Class
Equity / COMMON STOCK
Shares outstanding
6,762,613
Total 13F shares
3,110,648
Share change
+2,993,372
Total reported value
$19,037,334
Price per share
$6.12
Number of holders
35
Value change
+$18,321,877
Number of buys
33
Number of sells
2

Institutional Holders of Generation Bio Co. - COMMON STOCK (GBIO) as of Q3 2025

As of 30 Sep 2025, Generation Bio Co. - COMMON STOCK (GBIO) was held by 35 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 3,110,648 shares. The largest 10 holders included PRICE T ROWE ASSOCIATES INC /MD/, RENAISSANCE TECHNOLOGIES LLC, Siren, L.L.C., VANGUARD GROUP INC, MARSHALL WACE, LLP, BAKER BROS. ADVISORS LP, MORGAN STANLEY, UBS Group AG, ACADIAN ASSET MANAGEMENT LLC, and GOLDMAN SACHS GROUP INC. This page lists 35 institutional shareholders reporting positions in this security for the Q3 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.