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Transaction Types Key To InsiderInsights' Infobase
 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
GENERATION BIO CO: GBIO
Price: 7/25/25 52-Wk
High		 52-Wk
Low		 Mkt Cap (mm) Shrs Out (mm) 3-Mth Ave
Vol (m)		 Ind. Yield Short Int
% Float		 Inst. Owned Insider Owned
$4.61 $35.80 $3.00 $31 7 115 0.0% 1.8% 71.92% 14.31%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Chemicals And Allied Products Pharmaceutical Preparations
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#
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Insider Statistics
T N H M S
Filer Name
Insider Title
Trans Type
Dollar Value
Shares Traded
Trans Date From
Trans Date To
Trans Price From
Trans Price To
Total Holdings
Delta % Owned
Owned
Other Info
Input Date
1
    
 
ZIMMERMANN TRACY
O
JB
---
7,437
---
10/15/23
---
---
38,568
23.9
D
R
10/17/23 - 6:00:19 pm
2
    
 
NORKUNAS MATTHEW
CFO
JS
$8,667
2,675
---
10/15/23
---
$3.24
38,750
-6.5
D
R
10/17/23 - 6:00:17 pm
3
    
 
NORKUNAS MATTHEW
CFO
JB
---
9,111
---
10/15/23
---
---
40,933
28.6
D
R
10/17/23 - 6:00:17 pm
4
    
 
MCDONOUGH GEOFF
PR,CEO,DIR
JS
$33,680
10,395
---
10/15/23
---
$3.24
1,288,187
-0.8
D
R
10/17/23 - 6:00:14 pm
5
    
 
MCDONOUGH GEOFF
PR,CEO,DIR
JB
---
23,437
---
10/15/23
---
---
1,298,582
1.8
D
R
10/17/23 - 6:00:14 pm
6
    
 
KERR DOUGLAS
O
JS
$7,073
2,183
---
10/15/23
---
$3.24
370,404
-0.6
D
R
10/17/23 - 6:00:12 pm
7
    
 
KERR DOUGLAS
O
JB
---
7,437
---
10/15/23
---
---
372,587
2.0
D
R
10/17/23 - 6:00:12 pm
8
    
 
PAONE ANTOINETTE
COO
JS
$3,924
1,211
---
10/15/23
---
$3.24
5,828
-17.2
D
R
10/17/23 - 6:00:09 pm
9
    
 
PAONE ANTOINETTE
COO
JB
---
4,125
---
10/15/23
---
---
7,039
141.6
D
R
10/17/23 - 6:00:09 pm
10
    
 
PAONE ANTOINETTE
COO
AS
$15,362
3,116
---
8/23/23
---
$4.93
2,914
-51.7
D
10b
8/25/23 - 4:35:14 pm
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