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Detailed Insider History for:
AVIDITY BIOSCIENCES INC: RNA
Price: 9/12/25 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
$44.74 $56.00 $21.51 $5,756 129 3,037 0.0% 13.8% 101.77% 4.53%
Exch Sector Industry Sub-Industry
NasdaqGM Manufacturing Chemicals And Allied Products Pharmaceutical Preparations
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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
    
 
FLANAGAN W MICHAEL
O
OS
$778,702
20,000
---
9/11/25
---
$38.94
80,195
-20.0
D
10b
9/12/25 - 4:07:49 pm
2
    
 
FLANAGAN W MICHAEL
O
OE
$284,400
20,000
---
9/11/25
---
$14.22
100,195
24.9
D
10b
9/12/25 - 4:07:49 pm
3
1m
2
0%
9%
3
WILSON TROY EDWARD
DIR
OS
$1,475,000
29,500
---
9/5/25
---
$50.00
54,425
-35.2
D
10b
9/9/25 - 5:53:21 pm
4
    
 
WILSON TROY EDWARD
DIR
OE
$180,960
14,500
---
9/5/25
---
$12.48
83,925
20.9
D
10b
9/9/25 - 5:53:21 pm
5
1y
13
46%
8%
5
BOYCE SARAH
PR,CEO,DIR
OS
$2,497,435
50,000
---
9/5/25
---
$49.95
305,871
-14.1
D
10b
9/5/25 - 6:56:01 pm
6
    
 
BOYCE SARAH
PR,CEO,DIR
OE
$62,000
50,000
---
9/5/25
---
$1.24
355,871
16.3
D
10b
9/5/25 - 6:56:01 pm
7
    
 
MOSBROOKER ERIC
O
OS
$308,936
6,563
---
9/3/25
---
$47.07
55,000
-10.7
D
10b
9/5/25 - 6:32:51 pm
8
    
 
MOSBROOKER ERIC
O
OE
$59,395
6,563
---
9/3/25
---
$9.05
61,563
11.9
D
10b
9/5/25 - 6:32:51 pm
9
    
 
GALLAGHER KATHLEEN P
O
AS
$8,915
188
---
9/2/25
---
$47.42
50,204
-0.4
D
10b
9/2/25 - 8:30:31 pm
10
1y
13
46%
8%
5
BOYCE SARAH
PR,CEO,DIR
OS
$1,234,700
25,000
---
8/28/25
---
$49.39
305,871
-7.6
D
10b
8/29/25 - 4:28:35 pm
11
    
 
BOYCE SARAH
PR,CEO,DIR
OE
$31,000
25,000
---
8/28/25
---
$1.24
330,871
8.2
D
10b
8/29/25 - 4:28:35 pm
12
6m
1
0%
10%
2
HUGHES STEVEN GEORGE
O
OS
$102,462
2,208
---
8/22/25
---
$46.40
38,867
-5.4
D
10b
8/22/25 - 5:20:01 pm
13
    
 
HUGHES STEVEN GEORGE
O
OE
$22,433
2,208
---
8/22/25
---
$10.16
41,075
5.7
D
10b
8/22/25 - 5:20:01 pm
14
    
 
MCCARTHY TERESA
HR
OS
$465,632
10,000
---
8/15/25
---
$46.56
97,130
-9.3
D
10b
8/15/25 - 5:50:29 pm
15
    
 
MCCARTHY TERESA
HR
OE
$223,400
10,000
---
8/15/25
---
$22.34
107,130
10.3
D
10b
8/15/25 - 5:50:29 pm
16
6m
1
0%
10%
2
HUGHES STEVEN GEORGE
O
OS
$71,950
1,542
---
8/13/25
---
$46.66
38,867
-3.8
D
10b
8/15/25 - 4:07:19 pm
17
    
 
HUGHES STEVEN GEORGE
O
OE
$10,131
1,542
---
8/13/25
---
$6.57
40,409
4.0
D
10b
8/15/25 - 4:07:19 pm
18
1y
5
40%
38%
2
MACLEAN MICHAEL F
CFO
AS
$1,320,844
30,914
---
8/6/25
---
$42.73
65,806
-32.0
D
10b
8/15/25 - 4:09:38 pm
19
    
 
MOSBROOKER ERIC
O
OS
$5,763,697
130,807
---
8/6/25
---
$44.06
55,000
-70.4
D
10b
8/8/25 - 5:45:20 pm
20
    
 
MOSBROOKER ERIC
O
OE
$1,128,417
124,687
---
8/6/25
---
$9.05
185,807
204.0
D
10b
8/8/25 - 5:45:20 pm
21
1m
2
0%
9%
3
WILSON TROY EDWARD
DIR
OS
$1,327,500
29,500
---
8/6/25
---
$45.00
69,425
-29.8
D
10b
8/8/25 - 5:42:43 pm
22
1m
2
0%
9%
3
WILSON TROY EDWARD
DIR
OS
$2,949,930
65,554
---
8/6/25
---
$45.00
17,776
-78.7
I
10b
8/8/25 - 5:42:43 pm
23
    
 
WILSON TROY EDWARD
DIR
OE
$358,260
29,500
---
8/6/25
$12.03
$12.48
91,425
47.6
D
10b
8/8/25 - 5:42:43 pm
24
1y
20
65%
-10%
3
LEVIN ARTHUR A
DIR
OS
$5,118,881
107,500
---
8/6/25
---
$47.62
19,650
-84.5
D
10b
8/8/25 - 5:41:14 pm
25
    
 
LEVIN ARTHUR A
DIR
OE
$2,401,550
107,500
---
8/6/25
---
$22.34
127,150
547.1
D
10b
8/8/25 - 5:41:14 pm
26
6m
1
0%
10%
2
HUGHES STEVEN GEORGE
O
OS
$3,480,269
81,434
---
8/6/25
---
$42.74
38,867
-67.7
D
10b
8/8/25 - 5:39:33 pm
27
    
 
HUGHES STEVEN GEORGE
O
OE
$579,180
47,451
---
8/6/25
$6.57
$10.16
90,517
110.2
D
10b
8/8/25 - 5:39:33 pm
28
1m
1
0%
27%
2
MORIARTY JOHN B
LO
AS
$81,291
2,245
---
8/4/25
---
$36.21
47,755
-4.5
D
10b
8/5/25 - 5:27:11 pm
29
    
 
GALLAGHER KATHLEEN P
O
AS
$27,549
911
---
6/17/25
---
$30.24
50,392
-1.8
D
10b
6/18/25 - 6:02:48 pm
30
    
 
FLANAGAN W MICHAEL
O
OS
$657,694
20,000
---
6/11/25
---
$32.88
80,195
-20.0
D
10b
6/12/25 - 6:18:56 pm
31
    
 
FLANAGAN W MICHAEL
O
OE
$284,400
20,000
---
6/11/25
---
$14.22
100,195
24.9
D
10b
6/12/25 - 6:18:56 pm
32
    
 
HENIG NOREEN
DIR
JB
---
6,692
---
6/10/25
---
---
6,692
New
D
R
6/12/25 - 6:42:47 pm
33
    
 
BOESS CARSTEN
DIR
JB
---
6,692
---
6/10/25
---
---
6,692
New
D
R
6/12/25 - 6:40:46 pm
34
    
 
KAYE EDWARD M MD
DIR
JB
---
6,692
---
6/10/25
---
---
6,692
New
D
R
6/12/25 - 6:37:29 pm
35
    
 
LEVIN ARTHUR A
DIR
JB
---
6,692
---
6/10/25
---
---
19,650
51.6
D
R
6/12/25 - 6:35:24 pm
36
    
 
SKERJANEC SIMONA
DIR
JB
---
6,692
---
6/10/25
---
---
6,692
New
D
R
6/12/25 - 6:30:40 pm
37
    
 
WILSON TROY EDWARD
DIR
JB
---
6,692
---
6/10/25
---
---
69,425
10.7
D
R
6/12/25 - 6:26:06 pm
38
    
 
THOMPSON TAMAR
DIR
JB
---
6,692
---
6/10/25
---
---
6,692
New
D
R
6/12/25 - 6:24:11 pm
39
    
 
KIM JEAN JINSUN
DIR
JB
---
6,692
---
6/10/25
---
---
6,692
New
D
R
6/12/25 - 6:20:56 pm
40
    
 
GALLAGHER KATHLEEN P
O
OS
$190,833
5,875
---
6/2/25
---
$32.48
50,554
-10.4
D
10b
6/4/25 - 4:48:37 pm
41
    
 
GALLAGHER KATHLEEN P
O
OE
$97,819
5,875
---
6/2/25
---
$16.65
56,429
11.6
D
10b
6/4/25 - 4:48:37 pm
42
    
 
GALLAGHER KATHLEEN P
O
OS
$190,324
5,875
---
5/1/25
---
$32.40
50,554
-10.4
D
10b
5/2/25 - 7:55:34 pm
43
    
 
GALLAGHER KATHLEEN P
O
OE
$97,819
5,875
---
5/1/25
---
$16.65
56,429
11.6
D
10b
5/2/25 - 7:55:34 pm
44
    
 
GALLAGHER KATHLEEN P
O
OS
$163,486
5,875
---
4/1/25
---
$27.83
50,554
-10.4
D
10b
4/3/25 - 4:56:11 pm
45
    
 
GALLAGHER KATHLEEN P
O
OE
$87,004
5,875
---
4/1/25
$14.70
$16.65
56,100
11.7
D
10b
4/3/25 - 4:56:11 pm
46
6m
1
0%
10%
2
HUGHES STEVEN GEORGE
O
AS
$297,491
9,578
---
3/20/25
---
$31.06
72,850
-11.6
D
10b
3/21/25 - 6:44:16 pm
47
1y
13
46%
8%
5
BOYCE SARAH
PR,CEO,DIR
AS
$979,563
31,540
---
3/20/25
---
$31.06
305,871
-9.3
D
10b
3/21/25 - 6:42:24 pm
48
    
 
FLANAGAN W MICHAEL
O
AS
$365,868
11,780
---
3/20/25
---
$31.06
80,195
-12.8
D
10b
3/21/25 - 6:40:25 pm
49
1y
5
40%
38%
2
MACLEAN MICHAEL F
CFO
AS
$246,425
7,935
---
3/20/25
---
$31.06
96,720
-7.6
D
10b
3/21/25 - 6:38:38 pm
50
    
 
MCCARTHY TERESA
HR
AS
$241,583
7,778
---
3/20/25
---
$31.06
97,130
-7.4
D
10b
3/21/25 - 6:36:32 pm
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