Generation Bio Co. - Common Stock (GBIO)

Historical Holders from Q2 2025 to Q3 2025

Symbol
GBIO on Nasdaq
Type / Class
Equity / Common Stock
Shares outstanding
6,697,238
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares, excl. options
3,110,648
Holdings value
$19,037,334
% of all portfolios
0%
Number of holders
35
Number of buys
33
Number of sells
-2
Average buys %
+0%
Average sells %
-0%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Generation Bio Co. - Common Stock (GBIO)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
PRICE T ROWE ASSOCIATES INC /MD/ 8.6% -30.8% $3,529,718 -$48,258,076 576,789 -93.2% T. Rowe Price Associates, Inc. 30 Sep 2025
SymBiosis Capital Partners, LLC 6.3% $2,582,018 421,926 SymBiosis Capital Partners, LLC 30 Sep 2025
RENAISSANCE TECHNOLOGIES LLC 5.11% $2,106,752 344,263 Renaissance Technologies LLC 01 Jul 2025

Institutional Holders of Generation Bio Co. - Common Stock (GBIO)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 3,110,648 $19,037,334 +$18,321,877 $6.12 35
2025 Q2 117,122 $37,480 +$37,480 $0.32 3