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 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: 1/24/25 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
$0.94 $4.65 $0.75 $63 67 404 0.0% 4.4% 82.96% 14.40%
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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
---
5,021
---
1/29/24
---
---
50,640
11.0
D
R
1/31/24 - 4:30:26 pm
2
    
 
KERR DOUGLAS
O
JS
$2,804
1,476
---
1/29/24
---
$1.90
385,628
-0.4
D
R
1/31/24 - 4:30:15 pm
3
    
 
KERR DOUGLAS
O
JB
---
5,021
---
1/29/24
---
---
387,104
1.3
D
R
1/31/24 - 4:30:15 pm
4
    
 
ZIMMERMANN TRACY
O
JS
$9,353
4,897
---
1/15/24
---
$1.91
41,245
-10.6
D
R
1/17/24 - 5:00:58 pm
5
    
 
ZIMMERMANN TRACY
O
JB
---
14,131
---
1/15/24
---
---
47,939
41.8
D
R
1/17/24 - 5:00:58 pm
6
    
 
KERR DOUGLAS
O
JS
$9,353
4,897
---
1/15/24
---
$1.91
377,709
-1.3
D
R
1/17/24 - 5:00:43 pm
7
    
 
KERR DOUGLAS
O
JB
---
14,131
---
1/15/24
---
---
384,403
3.8
D
R
1/17/24 - 5:00:43 pm
8
    
 
STANTON MATTHEW
O
JS
$9,353
4,897
---
1/15/24
---
$1.91
239,399
-2.0
D
R
1/17/24 - 5:00:41 pm
9
    
 
STANTON MATTHEW
O
JB
---
14,131
---
1/15/24
---
---
246,093
6.1
D
R
1/17/24 - 5:00:41 pm
10
    
 
NORKUNAS MATTHEW
CFO
JS
$10,463
5,478
---
1/15/24
---
$1.91
44,792
-10.9
D
R
1/17/24 - 5:00:34 pm
11
    
 
NORKUNAS MATTHEW
CFO
JB
---
15,805
---
1/15/24
---
---
51,486
44.3
D
R
1/17/24 - 5:00:34 pm
12
    
 
MCDONOUGH GEOFF
PR,CEO,DIR
JS
$29,473
15,431
---
1/15/24
---
$1.91
1,305,948
-1.2
D
R
1/17/24 - 5:00:29 pm
13
    
 
MCDONOUGH GEOFF
PR,CEO,DIR
JB
---
44,531
---
1/15/24
---
---
1,327,042
3.5
D
R
1/17/24 - 5:00:29 pm
14
    
 
SAMAYOA PHILLIP
O
JS
$5,768
3,020
---
1/15/24
---
$1.91
109,951
-2.7
D
R
1/17/24 - 5:00:25 pm
15
    
 
SAMAYOA PHILLIP
O
JB
---
8,712
---
1/15/24
---
---
114,538
8.2
D
R
1/17/24 - 5:00:25 pm
16
    
 
PAONE ANTOINETTE
COO
JS
$6,947
3,637
---
1/15/24
---
$1.91
8,523
-29.9
D
R
1/17/24 - 5:00:15 pm
17
    
 
PAONE ANTOINETTE
COO
JB
---
10,492
---
1/15/24
---
---
14,890
238.6
D
R
1/17/24 - 5:00:15 pm
18
    
 
PAONE ANTOINETTE
COO
AS
$3,961
2,445
---
1/2/24
---
$1.62
5,828
-29.6
D
10b
1/3/24 - 4:35:53 pm
19
    
 
SAMAYOA PHILLIP
O
AS
$3,961
2,445
---
1/2/24
---
$1.62
107,256
-2.2
D
10b
1/3/24 - 4:35:41 pm
20
    
 
APPELHANS DANNIELLE
DIR
B
$1,159
637
---
12/8/23
---
$1.82
12,637
5.3
D
---
12/11/23 - 4:30:19 pm
21
    
 
APPELHANS DANNIELLE
DIR
B
$13,180
7,363
---
12/8/23
---
$1.79
7,363
New
I
---
12/11/23 - 4:30:19 pm
22
    
 
APPELHANS DANNIELLE
DIR
B
$18,000
12,000
---
12/4/23
---
$1.50
12,000
New
D
---
12/6/23 - 4:30:13 pm
23
1y
6
17%
-23%
6
ROWLAND CHARLES A JR
DIR
B
$477,778
342,960
12/1/23
12/4/23
$1.31
$1.50
534,757
178.8
D
---
12/5/23 - 4:30:27 pm
24
1y
1
0%
-4%
3
QUINN ANTHONY G
DIR
B
$124,778
88,495
---
12/1/23
---
$1.41
88,495
New
D
---
12/5/23 - 4:30:36 pm
25
    
 
NICHOLSON DONALD WILLIAM
DIR
B
$144,000
100,000
---
12/1/23
---
$1.44
213,576
88.0
D
---
12/5/23 - 4:30:20 pm
26
    
 
SAMAYOA PHILLIP
O
JS
$3,924
1,211
---
10/15/23
---
$3.24
107,256
-1.1
D
R
10/17/23 - 6:00:25 pm
27
    
 
SAMAYOA PHILLIP
O
JB
---
4,125
---
10/15/23
---
---
108,467
4.0
D
R
10/17/23 - 6:00:25 pm
28
    
 
STANTON MATTHEW
O
JS
$7,073
2,183
---
10/15/23
---
$3.24
234,539
-0.9
D
R
10/17/23 - 6:00:22 pm
29
    
 
STANTON MATTHEW
O
JB
---
7,437
---
10/15/23
---
---
236,722
3.2
D
R
10/17/23 - 6:00:22 pm
30
    
 
ZIMMERMANN TRACY
O
JS
$7,073
2,183
---
10/15/23
---
$3.24
36,385
-5.7
D
R
10/17/23 - 6:00:19 pm
31
    
 
ZIMMERMANN TRACY
O
JB
---
7,437
---
10/15/23
---
---
38,568
23.9
D
R
10/17/23 - 6:00:19 pm
32
    
 
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
33
    
 
NORKUNAS MATTHEW
CFO
JB
---
9,111
---
10/15/23
---
---
40,933
28.6
D
R
10/17/23 - 6:00:17 pm
34
    
 
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
35
    
 
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
36
    
 
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
37
    
 
KERR DOUGLAS
O
JB
---
7,437
---
10/15/23
---
---
372,587
2.0
D
R
10/17/23 - 6:00:12 pm
38
    
 
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
39
    
 
PAONE ANTOINETTE
COO
JB
---
4,125
---
10/15/23
---
---
7,039
141.6
D
R
10/17/23 - 6:00:09 pm
40
    
 
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
41
    
 
SAMAYOA PHILLIP
O
JS
$6,152
1,211
---
7/15/23
---
$5.08
104,342
-1.1
D
R
7/18/23 - 4:35:19 pm
42
    
 
SAMAYOA PHILLIP
O
JB
---
4,125
---
7/15/23
---
---
105,553
4.1
D
R
7/18/23 - 4:35:19 pm
43
    
 
STANTON MATTHEW
O
JS
$11,090
2,183
---
7/15/23
---
$5.08
229,285
-0.9
D
R
7/18/23 - 4:35:14 pm
44
    
 
STANTON MATTHEW
O
JB
---
7,437
---
7/15/23
---
---
231,468
3.3
D
R
7/18/23 - 4:35:14 pm
45
    
 
PAONE ANTOINETTE
COO
JS
$6,152
1,211
---
7/15/23
---
$5.08
6,030
-16.7
D
R
7/18/23 - 4:35:12 pm
46
    
 
PAONE ANTOINETTE
COO
JB
---
4,125
---
7/15/23
---
---
7,241
132.4
D
R
7/18/23 - 4:35:12 pm
47
    
 
ZIMMERMANN TRACY
O
JS
$11,090
2,183
---
7/15/23
---
$5.08
31,131
-6.6
D
R
7/18/23 - 4:35:10 pm
48
    
 
ZIMMERMANN TRACY
O
JB
---
7,437
---
7/15/23
---
---
33,314
28.7
D
R
7/18/23 - 4:35:10 pm
49
    
 
NORKUNAS MATTHEW
CFO
JS
$16,083
3,166
---
7/15/23
---
$5.08
31,131
-9.2
D
R
7/18/23 - 4:35:08 pm
50
    
 
NORKUNAS MATTHEW
CFO
JB
---
10,785
---
7/15/23
---
---
34,479
45.5
D
R
7/18/23 - 4:35:08 pm
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