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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:
ATRIUM THERAPEUTICS INC: RNA
Price: 9/18/26 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
$8.95 $16.77 $8.66 $153 17 242 0.0% 0.0% 84.45% 4.27%
Exch Sector Industry Sub-Industry
NasdaqGS 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
    
 
YOUNIS HUSAM
O
JS
$100,383
11,216
---
9/18/26
---
$8.95
41,441
-21.3
D
R
9/22/26 - 4:24:41 pm
2
    
 
HUGHES STEVEN GEORGE
O
JS
$192,058
21,459
---
9/18/26
---
$8.95
51,638
-29.4
D
R
9/22/26 - 4:23:56 pm
3
    
 
FLANAGAN W MICHAEL
DIR
JS
$204,167
22,812
---
9/18/26
---
$8.95
31,974
-41.6
D
R
9/22/26 - 4:20:33 pm
4
    
 
BOYCE SARAH
DIR
JS
$1,131,441
126,418
---
9/18/26
---
$8.95
138,668
-47.7
D
R
9/22/26 - 4:20:02 pm
5
    
 
KENNEY STEPHANIE
O
JS
$21,256
2,375
---
9/18/26
---
$8.95
33,085
-6.7
D
R
9/22/26 - 4:18:49 pm
6
    
 
GALLAGHER KATHLEEN P
DIR
JS
$104,106
11,632
---
9/18/26
---
$8.95
119,729
-8.9
D
R
9/22/26 - 4:17:39 pm
7
    
 
WINSLOW BRENDAN R
CFO
JS
$60,341
6,742
---
9/18/26
---
$8.95
36,859
-15.5
D
R
9/22/26 - 4:17:10 pm
8
    
 
HOYOS ROCIO MARTIN
O
JS
$74,464
8,320
---
9/18/26
---
$8.95
38,340
-17.8
D
R
9/22/26 - 4:15:53 pm
9
    
 
KENNEY STEPHANIE
O
JB
---
30,000
---
4/20/26
---
---
35,460
549.5
D
R
4/22/26 - 5:54:12 pm
10
    
 
HUGHES STEVEN GEORGE
O
JB
---
30,000
---
4/20/26
---
---
73,097
69.6
D
R
4/22/26 - 5:54:06 pm
11
    
 
WINSLOW BRENDAN R
CFO
JB
---
30,000
---
4/20/26
---
---
43,601
220.6
D
R
4/22/26 - 5:53:36 pm
12
    
 
GALLAGHER KATHLEEN P
DIR
JB
---
102,500
---
4/20/26
---
---
131,361
355.2
D
R
4/22/26 - 5:43:12 pm
13
    
 
HOYOS ROCIO MARTIN
O
JB
---
30,000
---
4/20/26
---
---
46,660
180.1
D
R
4/22/26 - 5:41:09 pm
14
    
 
YOUNIS HUSAM
O
JB
---
30,000
---
4/20/26
---
---
52,657
132.4
D
R
4/22/26 - 5:40:29 pm
15
    
 
MCCARTHY TERESA
HR
JS
---
165,296
---
2/27/26
---
---
---
All
D
R
2/27/26 - 3:28:38 pm
16
    
 
THOMPSON TAMAR
DIR
JS
---
6,692
---
2/27/26
---
---
---
All
D
R
2/27/26 - 3:26:56 pm
17
    
 
MACLEAN MICHAEL F
CFO
JS
---
133,977
---
2/27/26
---
---
---
All
D
R
2/27/26 - 3:24:28 pm
18
    
 
SKERJANEC SIMONA
DIR
JS
---
6,692
---
2/27/26
---
---
---
All
D
R
2/27/26 - 3:22:52 pm
19
    
 
HUGHES STEVEN GEORGE
O
JS
---
115,857
---
2/27/26
---
---
---
All
D
R
2/27/26 - 3:20:04 pm
20
    
 
BOYCE SARAH
PR,CEO,DIR
JS
---
474,861
---
2/27/26
---
---
---
All
D
R
2/27/26 - 3:19:36 pm
21
    
 
MORIARTY JOHN B
LO
JS
---
92,054
---
2/27/26
---
---
---
All
D
R
2/27/26 - 3:17:50 pm
22
    
 
FLANAGAN W MICHAEL
O
JS
---
150,365
---
2/27/26
---
---
---
All
D
R
2/27/26 - 3:16:42 pm
23
    
 
WILSON TROY EDWARD
DIR
JS
---
13,711
---
2/27/26
---
---
---
All
I
R
2/27/26 - 3:15:25 pm
24
    
 
WILSON TROY EDWARD
DIR
JS
---
65,091
---
2/27/26
---
---
---
All
D
R
2/27/26 - 3:15:25 pm
25
    
 
GALLAGHER KATHLEEN P
O
JS
---
80,303
---
2/27/26
---
---
---
All
D
R
2/27/26 - 3:13:34 pm
26
    
 
HENIG NOREEN
DIR
JS
---
6,692
---
2/27/26
---
---
---
All
D
R
2/27/26 - 3:11:24 pm
27
    
 
KIM JEAN JINSUN
DIR
JS
---
6,692
---
2/27/26
---
---
---
All
D
R
2/27/26 - 3:05:47 pm
28
    
 
LEVIN ARTHUR A
DIR
JS
---
16,562
---
2/27/26
---
---
---
All
D
R
2/27/26 - 2:56:29 pm
29
    
 
LEVIN ARTHUR A
DIR
JS
---
131,372
---
2/27/26
---
---
---
All
I
R
2/27/26 - 2:56:29 pm
30
    
 
KAYE EDWARD M MD
DIR
JS
---
6,692
---
2/27/26
---
---
---
All
D
R
2/27/26 - 2:51:10 pm
31
    
 
BOESS CARSTEN
DIR
JS
---
6,692
---
2/27/26
---
---
---
All
D
R
2/27/26 - 2:50:19 pm
32
    
 
MOSBROOKER ERIC
O
JS
---
79,413
---
2/27/26
---
---
---
All
D
R
2/27/26 - 2:47:57 pm
33
    
 
CALDERARO CHARLES III
CTO
JS
---
98,547
---
2/27/26
---
---
---
All
D
R
2/27/26 - 2:47:44 pm
34
    
 
WILSON TROY EDWARD
DIR
3
---
---
---
2/26/26
---
---
10,360
---
D
---
2/26/26 - 6:21:53 pm
35
    
 
WILSON TROY EDWARD
DIR
3
---
---
---
2/26/26
---
---
1,371
---
I
---
2/26/26 - 6:21:53 pm
36
    
 
KENNEY STEPHANIE
O
3
---
---
---
2/26/26
---
---
5,460
---
D
---
2/26/26 - 6:20:25 pm
37
    
 
FLANAGAN W MICHAEL
DIR
3
---
---
---
2/26/26
---
---
54,786
---
D
---
2/26/26 - 6:16:39 pm
38
    
 
BOESS CARSTEN
DIR
3
---
---
---
2/26/26
---
---
11,005
---
D
---
2/26/26 - 6:16:28 pm
39
    
 
BOYCE SARAH
DIR
3
---
---
---
2/26/26
---
---
265,086
---
D
---
2/26/26 - 6:16:15 pm
40
    
 
GALLAGHER KATHLEEN P
DIR
3
---
---
---
2/26/26
---
---
28,861
---
D
---
2/26/26 - 6:13:09 pm
41
    
 
WINSLOW BRENDAN R
CFO
3
---
---
---
2/26/26
---
---
13,601
---
D
---
2/26/26 - 6:13:06 pm
42
    
 
YOUNIS HUSAM
O
3
---
---
---
2/26/26
---
---
22,657
---
D
---
2/26/26 - 6:11:31 pm
43
    
 
SKERJANEC SIMONA
DIR
3
---
---
---
2/26/26
---
---
5,902
---
D
---
2/26/26 - 6:10:49 pm
44
    
 
HUGHES STEVEN GEORGE
O
3
---
---
---
2/26/26
---
---
43,097
---
D
---
2/26/26 - 6:06:48 pm
45
    
 
HOYOS ROCIO MARTIN
O
3
---
---
---
2/26/26
---
---
16,660
---
D
---
2/26/26 - 6:05:46 pm
46
1y
6
83%
-34%
2
HUGHES STEVEN GEORGE
O
AS
$354,643
4,895
---
1/21/26
---
$72.45
31,599
-13.4
D
10b
1/23/26 - 5:34:07 pm
47
1y
19
53%
9%
5
BOYCE SARAH
PR,CEO,DIR
AS
$1,042,338
14,387
---
1/21/26
---
$72.45
269,007
-5.1
D
10b
1/23/26 - 5:34:02 pm
48
    
 
FLANAGAN W MICHAEL
O
AS
$473,388
6,534
---
1/21/26
---
$72.45
85,093
-7.1
D
10b
1/23/26 - 5:33:56 pm
49
1y
11
45%
34%
2
MACLEAN MICHAEL F
CFO
AS
$329,068
4,542
---
1/21/26
---
$72.45
59,290
-7.1
D
10b
1/23/26 - 5:33:51 pm
50
1y
25
60%
-2%
3
LEVIN ARTHUR A
DIR
AS
$127,367
1,758
---
1/21/26
---
$72.45
16,562
-9.6
D
10b
1/23/26 - 5:33:46 pm
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