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Prothena (PRTA) SEC Filings & 10K Form

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$8.24 -0.32 (-3.74%)
Closing price 08/28/2025 04:00 PM Eastern
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$8.25 +0.01 (+0.12%)
As of 08/28/2025 07:50 PM Eastern
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Recent Prothena SEC Filings

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DateFilerForm TypeView
08/27/2025
3:15 PM		Prothena (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
08/14/2025
7:17 PM		ADAR1 Capital Management, LLC (Filed by)
Prothena (Subject)
Form SCHEDULE 13G
08/14/2025
12:16 PM		Logos Global Management LP (Filed by)
Prothena (Subject)
Form SCHEDULE 13G/A
08/06/2025
8:05 AM		Prothena (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/30/2025
4:15 PM		Prothena (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/30/2025
4:50 PM		Kinney Gene G. (Reporting)
Prothena (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/30/2025
4:51 PM		Malecek Michael J (Reporting)
Prothena (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/30/2025
4:51 PM		Nguyen Tran (Reporting)
Prothena (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/30/2025
4:51 PM		Prothena (Issuer)
Smith Brandon S. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
07/30/2025
4:52 PM		Prothena (Issuer)
Swanson Chad J. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
07/30/2025
4:52 PM		Prothena (Issuer)
Walker Karin L (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
07/30/2025
4:52 PM		Prothena (Issuer)
Zago Wagner M. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/18/2025
3:16 PM		Prothena (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
06/16/2025
6:30 AM		Prothena (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
06/05/2025
6:43 PM		Prothena (Subject)
WELLINGTON MANAGEMENT GROUP LLP (Filed by)
Form SCHEDULE 13G/A
06/04/2025
4:18 PM		Logos Global Management LP (Filed by)
Prothena (Subject)
Form SCHEDULE 13G
05/29/2025
8:08 PM		EcoR1 Capital, LLC (Filed by)
Prothena (Subject)
Form SCHEDULE 13D/A
05/23/2025
3:33 PM		Prothena (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/16/2025
3:44 PM		Cobb Paula K (Reporting)
Prothena (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/16/2025
3:46 PM		COLLIER RICHARD T (Reporting)
Prothena (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/16/2025
3:47 PM		Cooke Shane (Reporting)
Prothena (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/16/2025
3:48 PM		Dunn William H. Jr. (Reporting)
Prothena (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/15/2025
9:00 AM		Fennell Todd W. (Filed by)
Prothena (Subject)
Form SCHEDULE 13G/A
05/14/2025
9:34 AM		Prothena (Subject)
SCULLY WILLIAM P (Filed by)
Form SCHEDULE 13G/A
05/06/2025
6:06 PM		EcoR1 Capital, LLC (Reporting)
Prothena (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/06/2025
6:08 PM		EcoR1 Capital, LLC (Filed by)
Prothena (Subject)
Form SCHEDULE 13D/A
05/02/2025
9:29 AM		Prothena (Issuer)
SCULLY WILLIAM P (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
05/01/2025
8:19 PM		Prothena (Issuer)
SCULLY WILLIAM P (Reporting)
Form 3
Initial statement of beneficial ownership of securities  
03/28/2025
3:35 PM		Prothena (Filer)
Form DEFA14A
03/28/2025
3:37 PM		Prothena (Filer)
Form ARS
03/07/2025
3:45 PM		Prothena (Issuer)
Swanson Chad J. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/07/2025
3:46 PM		Prothena (Issuer)
Walker Karin L (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/07/2025
3:51 PM		Prothena (Issuer)
Zago Wagner M. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/07/2025
3:30 PM		Kinney Gene G. (Reporting)
Prothena (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
03/07/2025
3:36 PM		Malecek Michael J (Reporting)
Prothena (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
03/07/2025
3:37 PM		Nguyen Tran (Reporting)
Prothena (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
03/07/2025
3:41 PM		Prothena (Issuer)
Smith Brandon S. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/07/2025
3:24 PM		Ford David A (Reporting)
Prothena (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
03/07/2025
3:28 PM		Karp Carol D. (Reporting)
Prothena (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/21/2025
1:49 PM		Prothena (Subject)
SCULLY WILLIAM P (Filed by)
Form SCHEDULE 13G/A
02/20/2025
3:07 PM		Prothena (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
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02/14/2025
5:34 PM		Nguyen Tran (Reporting)
Prothena (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/14/2025
2:35 PM		Fennell Todd W. (Filed by)
Prothena (Subject)
Form SCHEDULE 13G/A
02/10/2025
9:25 AM		Prothena (Subject)
WELLINGTON MANAGEMENT GROUP LLP (Filed by)
Form SCHEDULE 13G/A
01/03/2025
6:45 PM		EcoR1 Capital, LLC (Filed by)
Prothena (Subject)
Form SCHEDULE 13D/A
12/30/2024
3:07 PM		Prothena (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
11/13/2024
6:00 AM		Fennell Todd W. (Filed by)
Prothena (Subject)
Form SC 13G/A
11/13/2024
5:06 AM		Prothena (Subject)
SCULLY WILLIAM P (Filed by)
Form SC 13G/A
11/08/2024
9:46 AM		Prothena (Subject)
WELLINGTON MANAGEMENT GROUP LLP (Filed by)
Form SC 13G
11/07/2024
8:33 AM		Prothena (Subject)
WELLINGTON MANAGEMENT GROUP LLP (Filed by)
Form SC 13G/A
10/18/2024
9:54 AM		Prothena (Subject)
STATE STREET CORP (Filed by)
Form SC 13G/A
10/03/2024
5:57 PM		Prothena (Issuer)
Swanson Chad J. (Reporting)
Form 3
Initial statement of beneficial ownership of securities  
10/03/2024
5:58 PM		Prothena (Issuer)
Swanson Chad J. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
09/27/2024
3:13 PM		Prothena (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
(Data available from 1/1/2016 forward)


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This page (NASDAQ:PRTA) was last updated on 8/29/2025 by MarketBeat.com Staff
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