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Prothena (PRTA) SEC Filings & 10K Form

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$6.26 -0.21 (-3.25%)
Closing price 07/18/2025 04:00 PM Eastern
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As of 07/18/2025 07:33 PM Eastern
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Recent Prothena SEC Filings

DateFilerForm TypeView
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)  
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  
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I made a mistake. A mistake I feel very foolish about. After speaking with Donald Trump and some of his advisors, I believed him. I believed the promise that he would finally confront the single most dangerous threat to American life. That he would fix the ticking time bomb I’ve been warning about for 15 years. But I was wrong.

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09/27/2024
3:13 PM
Prothena (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
08/08/2024
4:13 PM
Prothena (Filer)
Form S-8
Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans  
(Data available from 1/1/2016 forward)


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This page (NASDAQ:PRTA) was last updated on 7/19/2025 by MarketBeat.com Staff
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