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GBIO

Generation Bio

Delisted

GBIO was delisted on the 6th of February, 2026.

Name Holding Trade Value Shares
Change
Change in
Stake
AVLSA
1
Atlas Venture Life Science Advisors
Massachusetts
$4.7M – – –
SCP
2
SymBiosis Capital Partners
Arkansas
$3.78M +$3.76M +665,000 New
OM
3
Opaleye Management
Massachusetts
$1.76M +$1.75M +310,000 New
Renaissance Technologies
4
Renaissance Technologies
New York
$1.63M -$320K -56,649 -16%
Vanguard Group
5
Vanguard Group
Pennsylvania
$1.31M – – –
T. Rowe Price Associates
6
T. Rowe Price Associates
Maryland
$1.19M -$2.07M -367,148 -64%
SL
7
Siren LLC
Connecticut
$1.14M -$539K -95,473 -32%
UBS Group
8
UBS Group
Switzerland
$936K +$90.3K +15,995 +11%
Morgan Stanley
9
Morgan Stanley
New York
$917K -$16.3K -2,892 -2%
Marshall Wace
10
Marshall Wace
United Kingdom
$797K -$442K -78,167 -36%
Acadian Asset Management
11
Acadian Asset Management
Massachusetts
$686K -$36.6K -6,477 -5%
YCM
12
Yiheng Capital Management
California
$599K – – –
RC
13
Rangeley Capital
Connecticut
$558K +$555K +98,280 New
Goldman Sachs
14
Goldman Sachs
New York
$520K -$153K -27,056 -23%
Millennium Management
15
Millennium Management
New York
$503K -$49.7K -8,791 -9%
Bank of America
16
Bank of America
North Carolina
$482K +$141 +25 +0%
BlackRock
17
BlackRock
New York
$341K -$260 -46 -0.1%
Geode Capital Management
18
Geode Capital Management
Massachusetts
$294K +$11.2K +1,990 +4%
Two Sigma Investments
19
Two Sigma Investments
New York
$287K +$215K +38,115 +306%
Citadel Advisors
20
Citadel Advisors
Florida
$268K +$271 +48 +0.1%
DS
21
DRW Securities
Illinois
$249K +$247K +43,812 New
DAM
22
Deltec Asset Management
New York
$185K +$184K +32,650 New
TD Asset Management
23
TD Asset Management
Ontario, Canada
$152K – – –
LCM
24
Lynx1 Capital Management
Puerto Rico
$142K +$141K +25,000 New
TC
25
Torno Capital
Massachusetts
$142K +$141K +25,000 New