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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:
C4 THERAPEUTICS INC: CCCC
Price: 10/31/25 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
$2.61 $6.52 $1.09 $243 93 2,052 0.0% 6.1% 77.53% 7.50%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Chemicals And Allied Products Biological Products, (No Disgnostic Substances)
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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
    
 
MAHANEY PAIGE
O
JS
$14,562
5,644
---
10/28/25
---
$2.58
99,356
-5.4
D
R
10/30/25 - 4:30:04 pm
2
    
 
MAHANEY PAIGE
O
JB
---
19,200
---
10/28/25
---
---
105,000
22.4
D
R
10/30/25 - 4:30:04 pm
3
    
 
ANDERSON KENNETH CARL
DIR
JB
$11,500
5,349
---
10/1/25
---
$2.15
140,574
4.0
D
---
10/3/25 - 4:14:17 pm
4
    
 
GROGAN DONNA ROY
DIR
JB
$14,491
6,740
---
10/1/25
---
$2.15
58,629
13.0
D
---
10/3/25 - 4:13:58 pm
5
    
 
ADAMS KENDRA
CFO
JS
$9,213
2,775
---
9/18/25
---
$3.32
162,342
-1.7
D
R
9/19/25 - 4:13:49 pm
6
    
 
ADAMS KENDRA
CFO
JB
---
6,250
---
9/18/25
---
---
165,117
3.9
D
R
9/19/25 - 4:13:49 pm
7
    
 
REYNO LEONARD
O
JS
$14,690
7,382
---
7/10/25
---
$1.99
166,382
-4.2
D
A,R
7/15/25 - 9:00:15 am
8
    
 
REYNO LEONARD
O
JB
---
15,325
---
7/10/25
---
---
173,764
9.7
D
A,R
7/15/25 - 9:00:15 am
9
    
 
REYNO LEONARD
O
JS
$14,690
7,382
---
7/10/25
---
$1.99
166,382
-4.2
D
R
7/14/25 - 4:19:30 pm
10
    
 
ANDERSON KENNETH CARL
DIR
JB
$11,500
7,616
---
7/1/25
---
$1.51
135,225
6.0
D
---
7/2/25 - 4:17:16 pm
11
    
 
GROGAN DONNA ROY
DIR
JB
$14,510
9,609
---
7/1/25
---
$1.51
51,889
22.7
D
---
7/2/25 - 4:17:06 pm
12
    
 
GROGAN DONNA ROY
DIR
JB
$13,749
9,581
---
4/1/25
---
$1.44
42,280
29.3
D
---
4/3/25 - 4:11:53 pm
13
    
 
ANDERSON KENNETH CARL
DIR
JB
$11,252
7,841
---
4/1/25
---
$1.44
127,609
6.5
D
---
4/3/25 - 4:11:41 pm
14
    
 
BOYLE SCOTT N
O
AS
$3,651
1,159
2/14/25
2/18/25
---
$3.15
107,805
-1.1
D
R,10b
2/18/25 - 4:55:16 pm
15
    
 
HIRSCH ANDREW
PR,CEO,DIR
JS
$70,650
22,217
2/14/25
2/15/25
---
$3.18
423,145
-5.0
D
R
2/18/25 - 4:55:35 pm
16
    
 
HIRSCH ANDREW
PR,CEO,DIR
JB
---
223,500
---
2/14/25
---
---
445,362
100.7
D
R
2/18/25 - 4:55:35 pm
17
    
 
SIEGEL JOLIE
LO
JS
$16,099
5,049
2/13/25
2/14/25
---
$3.18
54,353
-8.5
D
R
2/18/25 - 4:55:25 pm
18
    
 
SIEGEL JOLIE
LO
JB
---
56,500
---
2/14/25
---
---
110,853
104.0
D
R
2/18/25 - 4:55:25 pm
19
    
 
BOYLE SCOTT N
O
JS
$13,082
4,103
2/13/25
2/14/25
---
$3.18
54,832
-7.0
D
R,10b
2/18/25 - 4:55:16 pm
20
    
 
BOYLE SCOTT N
O
JB
---
56,500
---
2/14/25
---
---
111,332
103.0
D
R,10b
2/18/25 - 4:55:16 pm
21
    
 
MOSSLER MARK
CAO
JS
$5,043
1,586
---
2/14/25
---
$3.18
18,204
-8.0
D
R
2/18/25 - 4:55:06 pm
22
    
 
SCHICK KELLY
HR
JS
$13,082
4,103
2/13/25
2/14/25
---
$3.18
54,753
-7.0
D
R
2/18/25 - 4:54:57 pm
23
    
 
SCHICK KELLY
HR
JB
---
56,500
---
2/14/25
---
---
111,253
103.2
D
R
2/18/25 - 4:54:57 pm
24
    
 
ADAMS KENDRA
CFO
JS
$20,459
6,422
2/13/25
2/14/25
---
$3.18
82,576
-7.2
D
R
2/18/25 - 4:54:48 pm
25
    
 
ADAMS KENDRA
CFO
JB
---
87,100
---
2/14/25
---
---
169,676
105.5
D
R
2/18/25 - 4:54:48 pm
26
    
 
MAHANEY PAIGE
O
JB
---
28,200
---
2/14/25
---
---
105,000
36.7
D
R
2/18/25 - 4:54:38 pm
27
    
 
REYNO LEONARD
O
JS
$16,361
5,145
---
2/14/25
---
$3.18
173,764
-2.9
D
R
2/18/25 - 4:54:28 pm
28
    
 
REYNO LEONARD
O
JB
---
87,100
---
2/14/25
---
---
178,909
94.9
D
R
2/18/25 - 4:54:28 pm
29
    
 
GROGAN DONNA ROY
DIR
JB
$13,751
3,757
---
1/2/25
---
$3.66
32,699
13.0
D
---
1/3/25 - 4:08:34 pm
30
    
 
ANDERSON KENNETH CARL
DIR
JB
$11,251
3,074
---
1/2/25
---
$3.66
119,768
2.6
D
---
1/3/25 - 4:08:23 pm
31
    
 
HOERTER STEVEN L
DIR
3
---
---
---
11/19/24
---
---
---
---
---
---
11/21/24 - 4:16:05 pm
32
    
 
BOYLE SCOTT N
O
JS
$6,656
1,102
---
11/7/24
---
$6.04
56,567
-1.9
D
R
11/12/24 - 4:17:43 pm
33
    
 
BOYLE SCOTT N
O
JB
---
3,750
---
11/7/24
---
---
57,669
7.0
D
R
11/12/24 - 4:17:43 pm
34
    
 
ADAMS KENDRA
CFO
JS
$6,656
1,102
---
11/7/24
---
$6.04
84,439
-1.3
D
R
11/12/24 - 4:17:32 pm
35
    
 
ADAMS KENDRA
CFO
JB
---
3,750
---
11/7/24
---
---
85,541
4.6
D
R
11/12/24 - 4:17:32 pm
36
    
 
SCHICK KELLY
HR
JS
$6,656
1,102
---
11/7/24
---
$6.04
56,488
-1.9
D
R
11/12/24 - 4:17:22 pm
37
    
 
SCHICK KELLY
HR
JB
---
3,750
---
11/7/24
---
---
57,590
7.0
D
R
11/12/24 - 4:17:22 pm
38
    
 
SIEGEL JOLIE
LO
JS
$6,656
1,102
---
11/7/24
---
$6.04
56,488
-1.9
D
R
11/12/24 - 4:17:13 pm
39
    
 
SIEGEL JOLIE
LO
JB
---
3,750
---
11/7/24
---
---
57,590
7.0
D
R
11/12/24 - 4:17:13 pm
40
    
 
HIRSCH ANDREW
PR,CEO,DIR
JS
$33,522
5,550
---
11/7/24
---
$6.04
221,862
-2.4
D
R
11/12/24 - 4:17:00 pm
41
    
 
HIRSCH ANDREW
PR,CEO,DIR
JB
---
12,500
---
11/7/24
---
---
227,412
5.8
D
R
11/12/24 - 4:17:00 pm
42
    
 
MAHANEY PAIGE
O
JB
---
76,800
---
10/28/24
---
---
76,800
New
D
R
10/29/24 - 4:31:32 pm
43
    
 
MAHANEY PAIGE
O
3
---
---
---
10/28/24
---
---
---
---
---
---
10/29/24 - 4:30:27 pm
44
    
 
GROGAN DONNA ROY
DIR
JB
$13,755
2,474
---
10/1/24
---
$5.56
28,942
9.3
D
---
10/2/24 - 4:32:39 pm
45
    
 
ANDERSON KENNETH CARL
DIR
JB
$11,248
2,023
---
10/1/24
---
$5.56
116,694
1.8
D
---
10/2/24 - 4:32:27 pm
46
    
 
ADAMS KENDRA
CFO
JS
$11,720
1,837
---
9/18/24
---
$6.38
81,791
-2.2
D
R
9/20/24 - 4:13:50 pm
47
    
 
HIRSCH ANDREW
PR,CEO,DIR
JS
$21,172
3,329
---
9/16/24
---
$6.36
214,912
-1.5
D
R
9/17/24 - 5:12:47 pm
48
    
 
HIRSCH ANDREW
PR,CEO,DIR
JB
---
7,500
---
9/16/24
---
---
218,241
3.6
D
R
9/17/24 - 5:12:47 pm
49
    
 
BOYLE SCOTT N
O
JS
$4,204
661
---
9/16/24
---
$6.36
53,919
-1.2
D
R
9/17/24 - 5:12:36 pm
50
    
 
BOYLE SCOTT N
O
JB
---
2,250
---
9/16/24
---
---
54,580
4.3
D
R
9/17/24 - 5:12:36 pm
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