GENERATION BIO CO

CUSIP: 37148K209 Class: COM NEW

Holders for Q4 2025 Position Changes for Q4 2025

Note: Option positions (PUT/CALL) are excluded.

New Positions (11)

Atlas Venture Life Science Advisors, LLC
Value ($000) $4,703 Shares 827,946
Rangeley Capital, LLC
Value ($000) $558 Shares 98,280
Opaleye Management Inc.
Value ($000) $1,761 Shares 310,000
DELTEC ASSET MANAGEMENT LLC
Value ($000) $185 Shares 32,650
Lynx1 Capital Management LP
Value ($000) $142 Shares 25,000
TORNO CAPITAL, LLC
Value ($000) $142 Shares 25,000
Palo Alto Investors LP
Value ($000) $85 Shares 15,047
DRW Securities, LLC
Value ($000) $249 Shares 43,812
CSS LLC/IL
Value ($000) $99 Shares 17,464
TWO SIGMA ADVISERS, LP
Value ($000) $68 Shares 11,930
Smartleaf Asset Management LLC
Value ($000) $0 Shares 1

Increased Positions (7)

Shay Capital LLC
Value ($000) $113 (+76.8%) Shares 19,839 (+90.5%)
TWO SIGMA INVESTMENTS, LP
Value ($000) $287 (+277.1%) Shares 50,557 (+306.3%)
UBS Group AG
Value ($000) $936 (+2.8%) Shares 164,716 (+10.8%)
NORTHERN TRUST CORP
Value ($000) $97 (+19.0%) Shares 17,058 (+28.2%)
XTX Topco Ltd
Value ($000) $75 (+7.4%) Shares 13,122 (+15.7%)
GEODE CAPITAL MANAGEMENT, LLC
Value ($000) $294 (-3.5%) Shares 51,795 (+4.0%)
Rockefeller Capital Management L.P.
Value ($000) $3 (+32.6%) Shares 500 (+42.9%)

Decreased Positions (13)

Siren, L.L.C.
Value ($000) $1,144 (-37.0%) Shares 201,419 (-32.2%)
MARSHALL WACE, LLP
Value ($000) $797 (-40.4%) Shares 140,294 (-35.8%)
RENAISSANCE TECHNOLOGIES LLC
Value ($000) $1,634 (-22.5%) Shares 287,614 (-16.5%)
GOLDMAN SACHS GROUP INC
Value ($000) $520 (-28.4%) Shares 91,527 (-22.8%)
FMR LLC
Value ($000) $15 (-81.4%) Shares 2,617 (-79.9%)
MILLENNIUM MANAGEMENT LLC
Value ($000) $503 (-15.6%) Shares 88,563 (-9.0%)
MORGAN STANLEY
Value ($000) $917 (-8.8%) Shares 161,378 (-1.8%)
PRICE T ROWE ASSOCIATES INC /MD/
Value ($000) $1 (-66.3%) Shares 209,641 (-63.7%)
ROYAL BANK OF CANADA
Value ($000) $6 (-14.3%) Shares 992 (-8.9%)
BNP PARIBAS ARBITRAGE, SA
Value ($000) $1 (-11.4%) Shares 147 (-4.5%)
ACADIAN ASSET MANAGEMENT LLC
Value ($000) $1 (-11.9%) Shares 121,029 (-5.1%)
Optiver Holding B.V.
Value ($000) $0 (-64.5%) Shares 2 (-60.0%)
CWM, LLC
Value ($000) $0 Shares 1 (-75.0%)

Exited Positions (3)

BAKER BROS. ADVISORS LP
Value ($000) $1,190 Shares 194,493
CANTOR FITZGERALD, L. P.
Value ($000) $606 Shares 99,000
CITIGROUP INC
Value ($000) $4 Shares 668