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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:
GREAT LAKES DREDGE AND DOCK CORP: GLDD
Price: 12/20/24 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
$11.72 $12.89 $6.55 $788 67 423 0.0% 1.3% 82.82% 2.02%
Exch Sector Industry Sub-Industry
NasdaqGS Construction Heavy Construction Other Than Building Construction Contractors Heavy Construction Other Than Bldg Const- Contractors
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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
1y
4
75%
-17%
3
DICKERSON LAWRENCE R
DIR
S
$191,799
15,936
---
11/14/24
---
$12.04
82,148
-16.2
D
---
11/15/24 - 4:01:34 pm
2
1y
4
75%
-17%
3
DICKERSON LAWRENCE R
DIR
S
$67,118
5,323
---
11/12/24
---
$12.61
98,084
-5.1
D
---
11/13/24 - 4:19:11 pm
3
1m
1
100%
-4%
3
SHANAHAN KATHLEEN M
DIR
S
$293,542
23,238
---
11/11/24
---
$12.63
67,675
-25.6
D
---
11/12/24 - 4:57:17 pm
4
1m
1
100%
-4%
2
STEGER RONALD
DIR
S
$153,120
12,000
---
11/11/24
---
$12.76
25,404
-32.1
D
---
11/12/24 - 4:50:50 pm
5
    
 
STEUERT D MICHAEL
DIR
JB
---
1,899
---
9/30/24
---
---
84,678
2.3
D
---
10/2/24 - 4:50:49 pm
6
    
 
SHIPP EARL L
DIR
JB
---
1,899
---
9/30/24
---
---
32,289
6.2
D
---
10/2/24 - 4:41:54 pm
7
    
 
DICKERSON LAWRENCE R
DIR
JB
---
4,363
---
9/30/24
---
---
103,407
4.4
D
---
10/2/24 - 4:32:22 pm
8
1y
1
0%
45%
2
PETTERSON LASSE
CEO,PR,DIR
AS
$579,503
63,918
8/19/24
8/20/24
$9.06
$9.10
977,611
-6.1
D
10b
8/21/24 - 4:31:52 pm
9
1y
1
0%
45%
2
PETTERSON LASSE
CEO,PR,DIR
AS
$1,008,185
110,863
8/15/24
8/16/24
$9.08
$9.11
1,041,529
-9.6
D
10b
8/19/24 - 4:28:20 pm
10
    
 
PETTERSON LASSE
CEO,PR,DIR
JS
$890,000
100,000
---
7/15/24
---
$8.90
1,152,392
-8.0
D
---
7/17/24 - 4:06:30 pm
11
    
 
STEUERT D MICHAEL
DIR
JB
---
2,337
---
6/28/24
---
---
82,779
2.9
D
---
7/1/24 - 5:10:45 pm
12
    
 
SHIPP EARL L
DIR
JB
---
2,278
---
6/28/24
---
---
30,390
8.1
D
---
7/1/24 - 5:08:49 pm
13
    
 
DICKERSON LAWRENCE R
DIR
JB
---
5,232
---
6/28/24
---
---
99,044
5.6
D
---
7/1/24 - 5:01:23 pm
14
    
 
SCHIFFER VIVIENNE
VP,LO,CCO,SEC
JS
$7,533
1,070
---
5/6/24
---
$7.04
50,545
-2.1
D
---
5/7/24 - 4:43:29 pm
15
    
 
PETTERSON LASSE
CEO,PR,DIR
JS
$66,648
9,467
---
5/6/24
---
$7.04
1,252,392
-0.8
D
---
5/7/24 - 4:40:27 pm
16
    
 
KORNBLAU SCOTT LEE
VP,CFO,TR
JS
$11,799
1,676
---
5/6/24
---
$7.04
116,757
-1.4
D
---
5/7/24 - 4:35:08 pm
17
    
 
JOHANSON DAVID
VP,OO
JS
$4,541
645
---
5/6/24
---
$7.04
78,588
-0.8
D
---
5/7/24 - 4:30:43 pm
18
    
 
HANSON WILLIAM H
VP
JS
$3,421
486
---
5/6/24
---
$7.04
53,198
-0.9
D
---
5/7/24 - 4:26:56 pm
19
    
 
GUNSTEN CHRISTOPHER
VP
JS
$4,506
640
---
5/6/24
---
$7.04
57,657
-1.1
D
---
5/7/24 - 4:24:02 pm
20
    
 
BEYKO ELENI
VP
JS
$6,259
889
---
5/6/24
---
$7.04
69,935
-1.3
D
---
5/7/24 - 4:19:28 pm
21
    
 
KORNBLAU SCOTT LEE
VP,CFO,TR
JS
$141,463
19,675
---
4/25/24
---
$7.19
118,433
-14.2
D
R
4/29/24 - 4:49:26 pm
22
    
 
KORNBLAU SCOTT LEE
VP,CFO,TR
JB
---
50,000
---
4/25/24
---
---
138,108
56.7
D
R
4/29/24 - 4:49:26 pm
23
    
 
BEYKO ELENI
VP
JS
$60,175
8,088
---
4/24/24
---
$7.44
70,824
-10.2
D
---
4/25/24 - 4:12:16 pm
24
    
 
STEUERT D MICHAEL
DIR
JB
---
2,429
---
3/28/24
---
---
80,442
3.1
D
---
4/1/24 - 6:32:26 pm
25
    
 
SHIPP EARL L
DIR
JB
---
2,286
---
3/28/24
---
---
28,112
8.9
D
---
4/1/24 - 6:29:31 pm
26
    
 
DICKERSON LAWRENCE R
DIR
JB
---
5,250
---
3/28/24
---
---
93,812
5.9
D
---
4/1/24 - 6:27:01 pm
27
    
 
JOHANSON DAVID
VP,OO
JS
$34,592
4,013
---
3/15/24
---
$8.62
66,565
-5.7
D
R
3/19/24 - 4:59:30 pm
28
    
 
JOHANSON DAVID
VP,OO
JB
---
19,566
---
3/15/24
---
---
79,233
32.8
D
R
3/19/24 - 4:59:30 pm
29
    
 
SCHIFFER VIVIENNE
VP,LO,CCO,SEC
JS
$52,263
6,063
---
3/15/24
---
$8.62
35,931
-14.4
D
R
3/19/24 - 4:56:02 pm
30
    
 
SCHIFFER VIVIENNE
VP,LO,CCO,SEC
JB
---
23,436
---
3/15/24
---
---
51,615
83.2
D
R
3/19/24 - 4:56:02 pm
31
    
 
PETTERSON LASSE
CEO,PR,DIR
JS
$462,446
53,648
---
3/15/24
---
$8.62
1,143,471
-4.5
D
R
3/19/24 - 4:54:16 pm
32
    
 
PETTERSON LASSE
CEO,PR,DIR
JB
---
169,957
---
3/15/24
---
---
1,261,859
15.6
D
R
3/19/24 - 4:54:16 pm
33
    
 
KORNBLAU SCOTT LEE
VP,CFO,TR
JS
$81,873
9,498
---
3/15/24
---
$8.62
65,803
-12.6
D
R
3/19/24 - 4:51:58 pm
34
    
 
KORNBLAU SCOTT LEE
VP,CFO,TR
JB
---
34,450
---
3/15/24
---
---
88,108
64.2
D
R
3/19/24 - 4:51:58 pm
35
    
 
HANSON WILLIAM H
VP
JS
$23,076
2,677
---
3/15/24
---
$8.62
45,820
-5.5
D
R
3/19/24 - 4:49:16 pm
36
    
 
HANSON WILLIAM H
VP
JB
---
12,145
---
3/15/24
---
---
53,684
29.2
D
R
3/19/24 - 4:49:16 pm
37
    
 
GUNSTEN CHRISTOPHER
VP
JS
$34,523
4,005
---
3/15/24
---
$8.62
45,629
-8.1
D
R
3/19/24 - 4:46:56 pm
38
    
 
GUNSTEN CHRISTOPHER
VP
JB
---
19,566
---
3/15/24
---
---
58,297
50.5
D
R
3/19/24 - 4:46:56 pm
39
    
 
BEYKO ELENI
VP
JS
$44,600
5,174
---
3/15/24
---
$8.62
64,132
-7.5
D
R
3/19/24 - 4:44:38 pm
40
    
 
BEYKO ELENI
VP
JB
---
22,827
---
3/15/24
---
---
78,912
40.7
D
R
3/19/24 - 4:44:38 pm
41
    
 
BAYER RYAN
VP,CAO
JS
$4,689
544
---
3/15/24
---
$8.62
4,456
-10.9
D
R
3/19/24 - 4:42:30 pm
42
    
 
BAYER RYAN
VP,CAO
JB
---
9,771
---
3/15/24
---
---
14,227
219.3
D
R
3/19/24 - 4:42:30 pm
43
    
 
JOHANSON DAVID
VP,OO
JS
$3,941
453
---
3/5/24
---
$8.70
63,680
-0.7
D
A
3/19/24 - 4:58:00 pm
44
    
 
SCHIFFER VIVIENNE
VP,LO,CCO,SEC
JS
$7,787
895
---
3/5/24
---
$8.70
34,242
-2.5
D
---
3/6/24 - 4:51:39 pm
45
    
 
PETTERSON LASSE
CEO,PR,DIR
JS
$77,082
8,860
---
3/5/24
---
$8.70
1,145,550
-0.8
D
---
3/6/24 - 4:50:11 pm
46
    
 
KORNBLAU SCOTT LEE
VP,CFO,TR
JS
$16,095
1,850
---
3/5/24
---
$8.70
63,156
-2.8
D
---
3/6/24 - 4:47:48 pm
47
    
 
JOHANSON DAVID
VP,OO
JS
$3,941
453
---
3/5/24
---
$8.70
63,680
-0.7
D
---
3/6/24 - 4:45:12 pm
48
    
 
HANSON WILLIAM H
VP
JS
$2,967
341
---
3/5/24
---
$8.70
44,216
-0.8
D
---
3/6/24 - 4:38:42 pm
49
    
 
GUNSTEN CHRISTOPHER
VP
JS
$2,410
277
---
3/5/24
---
$8.70
42,736
-0.6
D
---
3/6/24 - 4:37:15 pm
50
    
 
BEYKO ELENI
VP
JS
$5,324
612
---
3/5/24
---
$8.70
61,259
-1.0
D
---
3/6/24 - 4:32:07 pm
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