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Detailed Insider History for:
PROTHENA CORP PUBLIC LTD CO: PRTA
Price: 7/4/25 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
$6.44 $25.42 $4.32 $346 54 1,787 0.0% 16.3% 73.95% 18.99%
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
1y
1
0%
180%
10
ECOR1 CAPITAL LLC
BO
S
$15,164,712
1,984,053
---
5/6/25
---
$7.64
5,304,596
-27.2
I
---
5/6/25 - 7:06:05 pm
2
1y
1
0%
180%
10
ECOR1 CAPITAL LLC
BO
S
$35,675,096
4,295,631
5/2/25
5/5/25
---
$8.11
7,288,649
-37.1
I
---
5/6/25 - 7:06:05 pm
3
    
 
SCULLY WILLIAM P
BO
JS
---
12,000
---
1/15/25
---
---
47,000
-20.3
I
---
5/2/25 - 10:29:05 am
4
    
 
SCULLY WILLIAM P
BO
B
$1,279,040
100,000
---
1/14/25
---
$12.79
735,993
15.7
D
---
5/2/25 - 10:29:05 am
5
    
 
SCULLY WILLIAM P
BO
JS
---
14,200
1/2/25
1/3/25
---
---
635,993
-2.2
D
---
5/2/25 - 10:29:05 am
6
    
 
SCULLY WILLIAM P
BO
B
$416,393
32,000
---
12/31/24
---
$12.99
650,193
5.2
D
---
5/2/25 - 10:29:05 am
7
    
 
SCULLY WILLIAM P
BO
JS
---
681,500
12/19/24
12/20/24
---
---
616,693
-52.5
D
---
5/2/25 - 10:29:05 am
8
    
 
SCULLY WILLIAM P
BO
JS
---
40,000
---
12/20/24
---
---
59,000
-40.4
I
---
5/2/25 - 10:29:05 am
9
    
 
SCULLY WILLIAM P
BO
B
$1,054,483
75,436
12/18/24
12/20/24
$13.93
$15.91
1,297,693
6.2
D
---
5/2/25 - 10:29:05 am
10
    
 
SCULLY WILLIAM P
BO
JB
---
430,000
---
12/18/24
---
---
1,224,257
54.1
D
---
5/2/25 - 10:29:05 am
11
    
 
SCULLY WILLIAM P
BO
3
---
---
---
12/17/24
---
---
75,950
---
I
---
5/1/25 - 9:19:59 pm
12
    
 
SCULLY WILLIAM P
BO
3
---
---
---
12/17/24
---
---
99,000
---
I
---
5/1/25 - 9:19:59 pm
13
    
 
SCULLY WILLIAM P
BO
3
---
---
---
12/17/24
---
---
794,257
---
D
---
5/1/25 - 9:19:59 pm
14
    
 
SCULLY WILLIAM P
BO
3
---
---
---
12/17/24
---
---
68,000
---
I
---
5/1/25 - 9:19:59 pm
15
    
 
SWANSON CHAD J
O
3
---
---
---
9/27/24
---
---
---
---
---
---
10/3/24 - 6:57:44 pm
16
    
 
FORD DAVID A
HR
3
---
---
---
3/1/24
---
---
---
---
---
---
3/5/24 - 9:01:40 pm
17
    
 
WELCH DANIEL G
DIR
3
---
---
---
2/21/24
---
---
---
---
---
---
2/23/24 - 5:36:01 pm
18
1y
28
64%
-4%
1
WALKER KARIN L
CAO
OS
$170,000
5,000
---
1/24/24
---
$34.00
---
All
D
10b
1/24/24 - 7:01:06 pm
19
    
 
WALKER KARIN L
CAO
OE
$67,650
5,000
---
1/24/24
---
$13.53
5,000
New
D
10b
1/24/24 - 7:01:06 pm
20
1y
28
64%
-4%
1
WALKER KARIN L
CAO
OS
$185,952
5,000
---
12/20/23
$36.68
$37.45
---
All
D
10b
12/20/23 - 7:17:00 pm
21
    
 
WALKER KARIN L
CAO
OE
$67,650
5,000
---
12/20/23
---
$13.53
5,000
New
D
10b
12/20/23 - 7:17:00 pm
22
1y
28
64%
-4%
1
WALKER KARIN L
CAO
OS
$170,000
5,000
---
11/30/23
---
$34.00
---
All
D
10b
11/30/23 - 6:24:20 pm
23
    
 
WALKER KARIN L
CAO
OE
$67,650
5,000
---
11/30/23
---
$13.53
5,000
New
D
10b
11/30/23 - 6:24:20 pm
24
1y
28
64%
-4%
1
WALKER KARIN L
CAO
OS
$205,191
5,000
---
10/25/23
$40.27
$42.28
---
All
D
10b
10/25/23 - 8:03:51 pm
25
    
 
WALKER KARIN L
CAO
OE
$67,650
5,000
---
10/25/23
---
$13.53
5,000
New
D
10b
10/25/23 - 8:03:51 pm
26
    
 
SMITH BRANDON S
COO
OS
$186,985
4,000
---
10/11/23
$46.62
$47.74
---
All
D
10b
10/11/23 - 8:25:13 pm
27
    
 
SMITH BRANDON S
COO
OE
$44,480
4,000
---
10/11/23
---
$11.12
4,000
New
D
10b
10/11/23 - 8:25:13 pm
28
    
 
KARP CAROL D
LO
OS
$233,084
5,000
---
10/4/23
$46.51
$47.29
---
All
D
10b
10/4/23 - 7:52:41 pm
29
    
 
KARP CAROL D
LO
OE
$60,750
5,000
---
10/4/23
---
$12.15
5,000
New
D
10b
10/4/23 - 7:52:41 pm
30
    
 
MALECEK MICHAEL J
LO
OS
$236,885
5,000
---
9/27/23
$47.29
$48.31
---
All
D
10b
9/27/23 - 8:35:53 pm
31
    
 
MALECEK MICHAEL J
LO
OE
$51,350
5,000
---
9/27/23
---
$10.27
5,000
New
D
10b
9/27/23 - 8:35:53 pm
32
1y
28
64%
-4%
1
WALKER KARIN L
CAO
OS
$261,807
5,000
---
9/19/23
---
$52.36
---
All
D
10b
9/19/23 - 5:37:17 pm
33
    
 
WALKER KARIN L
CAO
OE
$75,200
5,000
---
9/19/23
---
$15.04
5,000
New
D
10b
9/19/23 - 5:37:17 pm
34
    
 
GARREN HIDEKI
O
OS
$110,952
2,000
---
9/13/23
---
$55.48
---
All
D
10b
9/13/23 - 7:33:17 pm
35
    
 
GARREN HIDEKI
O
OE
$49,800
2,000
---
9/13/23
---
$24.90
2,000
New
D
10b
9/13/23 - 7:33:17 pm
36
    
 
SMITH BRANDON S
COO
OS
$221,963
4,000
---
9/13/23
$55.48
$55.96
---
All
D
10b
9/13/23 - 7:32:17 pm
37
    
 
SMITH BRANDON S
COO
OE
$44,480
4,000
---
9/13/23
---
$11.12
4,000
New
D
10b
9/13/23 - 7:32:17 pm
38
    
 
KARP CAROL D
LO
OS
$273,804
5,000
---
9/6/23
$54.76
$55.27
---
All
D
10b
9/6/23 - 7:42:06 pm
39
    
 
KARP CAROL D
LO
OE
$60,750
5,000
---
9/6/23
---
$12.15
5,000
New
D
10b
9/6/23 - 7:42:06 pm
40
    
 
MALECEK MICHAEL J
LO
OS
$275,066
5,000
---
8/30/23
$54.58
$56.21
---
All
D
10b
8/30/23 - 7:24:55 pm
41
    
 
MALECEK MICHAEL J
LO
OE
$51,350
5,000
---
8/30/23
---
$10.27
5,000
New
D
10b
8/30/23 - 7:24:55 pm
42
1y
28
64%
-4%
1
WALKER KARIN L
CAO
OS
$285,923
5,000
---
8/18/23
---
$57.18
---
All
D
10b
8/18/23 - 8:37:27 pm
43
    
 
WALKER KARIN L
CAO
OE
$75,200
5,000
---
8/18/23
---
$15.04
5,000
New
D
10b
8/18/23 - 8:37:27 pm
44
    
 
GARREN HIDEKI
O
OS
$117,480
2,000
---
8/16/23
$58.15
$59.74
---
All
D
10b
8/16/23 - 9:15:35 pm
45
    
 
GARREN HIDEKI
O
OE
$49,800
2,000
---
8/16/23
---
$24.90
2,000
New
D
10b
8/16/23 - 9:15:35 pm
46
    
 
SMITH BRANDON S
COO
OS
$234,844
4,000
---
8/16/23
$58.22
$59.91
---
All
D
10b
8/16/23 - 9:15:33 pm
47
    
 
SMITH BRANDON S
COO
OE
$44,480
4,000
---
8/16/23
---
$11.12
4,000
New
D
10b
8/16/23 - 9:15:33 pm
48
1y
8
75%
-39%
1
ZAGO WAGNER M
O
OS
$268,182
4,000
---
8/2/23
$66.98
$68.07
---
All
D
10b
8/2/23 - 9:00:47 pm
49
    
 
ZAGO WAGNER M
O
OE
$48,600
4,000
---
8/2/23
---
$12.15
4,000
New
D
10b
8/2/23 - 9:00:47 pm
50
    
 
KARP CAROL D
LO
OS
$335,072
5,000
---
8/2/23
$66.95
$67.95
---
All
D
10b
8/2/23 - 9:00:34 pm
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