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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:
'POSNER BRIAN S'
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Insider Statistics
T N H M S
Insider Title
Company Name
Ticker
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
SIC Code
SIC Sector
SIC Industry
SIC Sub-Industry
Input Date
1
3m
2
50%
-4%
6
DIR
DYNE THERAPEUTICS INC
DYN
B
$33,880
2,000
---
6/8/26
---
$16.94
24,500
8.9
D
---
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
6/9/26 - 5:06:18 pm
2
3m
2
50%
-4%
6
DIR
DYNE THERAPEUTICS INC
DYN
B
$43,700
2,500
---
6/3/26
---
$17.48
22,500
12.5
D
---
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
6/5/26 - 4:10:04 pm
3
1y
1
0%
11%
6
DIR
ARCH CAPITAL GROUP LTD
ACGL
JS*
$58,980
3,000
---
6/3/26
---
$19.66
---
All
D
---
6331
Finance, Insurance, And Real Estate
Insurance Carriers
Fire, Marine & Casualty Insurance
6/4/26 - 6:23:09 pm
4
3m
2
50%
-4%
6
DIR
DYNE THERAPEUTICS INC
DYN
B
$36,420
2,000
---
5/26/26
---
$18.21
20,000
11.1
D
---
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
5/28/26 - 4:11:20 pm
5
3m
2
50%
-4%
6
DIR
DYNE THERAPEUTICS INC
DYN
B
$42,800
2,500
---
5/20/26
---
$17.12
18,000
16.1
D
---
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
5/22/26 - 4:10:03 pm
6
1y
1
0%
11%
6
DIR
ARCH CAPITAL GROUP LTD
ACGL
JS*
$34,283
2,000
---
5/11/26
---
$17.14
---
All
D
---
6331
Finance, Insurance, And Real Estate
Insurance Carriers
Fire, Marine & Casualty Insurance
5/12/26 - 4:32:30 pm
7
    
 
DIR
ARCH CAPITAL GROUP LTD
ACGL
JB
---
2,071
---
5/5/26
---
---
122,175
1.7
D
R
6331
Finance, Insurance, And Real Estate
Insurance Carriers
Fire, Marine & Casualty Insurance
5/7/26 - 4:50:06 pm
8
3m
2
50%
-4%
6
DIR
DYNE THERAPEUTICS INC
DYN
B
$34,160
2,000
---
3/30/26
---
$17.08
15,500
14.8
D
---
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
4/1/26 - 4:27:51 pm
9
3m
2
50%
-4%
6
DIR
DYNE THERAPEUTICS INC
DYN
B
$38,700
2,000
---
3/11/26
---
$19.35
13,500
17.4
D
---
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/13/26 - 4:46:19 pm
10
1y
1
0%
11%
6
DIR
ARCH CAPITAL GROUP LTD
ACGL
JS*
$51,345
3,000
---
3/11/26
---
$17.11
2,000
-60.0
D
---
6331
Finance, Insurance, And Real Estate
Insurance Carriers
Fire, Marine & Casualty Insurance
3/12/26 - 4:29:31 pm
11
3m
2
50%
-4%
6
DIR
DYNE THERAPEUTICS INC
DYN
B
$45,180
3,000
---
3/6/26
---
$15.06
11,500
35.3
D
---
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/10/26 - 5:33:53 pm
12
    
 
DIR
DYNE THERAPEUTICS INC
DYN
3
---
---
---
10/1/25
---
---
8,500
---
D
---
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
10/2/25 - 4:13:03 pm
13
1y
11
100%
42%
6
DIR
ARCH CAPITAL GROUP LTD
ACGL
JB*
$17,338
1,000
---
8/1/25
---
$17.34
5,000
25.0
D
---
6331
Finance, Insurance, And Real Estate
Insurance Carriers
Fire, Marine & Casualty Insurance
8/4/25 - 4:23:06 pm
14
    
 
DIR
ARCH CAPITAL GROUP LTD
ACGL
JB
---
1,564
---
5/7/25
---
---
120,104
1.3
D
R
6331
Finance, Insurance, And Real Estate
Insurance Carriers
Fire, Marine & Casualty Insurance
5/9/25 - 5:15:32 pm
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