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- Profile
- Historical

Data

- Earnings (+100.0% Growth)
- Ratings (6.8 Score)
- Holders

Upcoming Events

- Earnings (11/6/26 *Est.)

News

- Analyst Ratings
- Earnings Related
- Guidance
- Insider Trades
- Mgmt Changes
- M & A
- Retail Sales
- Rumors
- Stock Buybacks
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Prothena Corp. (NQ:PRTA)
Delayed: 9.11 +0.40 (4.59%)
Prev. Close $8.71  
Open$8.91 
52 Wk High$76.42 
52 Wk Low$28.20 
Day High$9.23 
Day Low$8.91 
P/E N/A  
EPS$-2.84 
Volume139,190 

Friends, Peers and Foes (?): ACLX, AGIO, AKRO, ASND, BBIO (more...)

Aug 19, 2026 10:19 AM Form SCHEDULE 13G/A PROTHENA CORP PUBLIC Filed by: Fennell Todd W.
Aug 18, 2026 04:17 PM Form 3 PROTHENA CORP PUBLIC For: Aug 18 Filed by: Fennell Todd W.
Aug 18, 2026 04:03 PM Form 4 PROTHENA CORP PUBLIC For: Aug 18 Filed by: SCULLY WILLIAM P
Aug 14, 2026 09:10 AM Form SCHEDULE 13G/A PROTHENA CORP PUBLIC Filed by: Fennell Todd W.
Aug 11, 2026 04:08 PM Form 4 PROTHENA CORP PUBLIC For: Aug 10 Filed by: SCULLY WILLIAM P
Aug 11, 2026 09:38 AM Form 3 PROTHENA CORP PUBLIC For: Aug 06 Filed by: Fennell Todd W.
Aug 10, 2026 03:25 PM Form 4 PROTHENA CORP PUBLIC For: Aug 07 Filed by: SCULLY WILLIAM P
Aug 6, 2026 04:29 PM Form 10-Q PROTHENA CORP PUBLIC For: Jun 30
Aug 6, 2026 04:22 PM Form 8-K PROTHENA CORP PUBLIC For: Aug 06
Aug 6, 2026 04:05 PM Prothena Reports Second Quarter 2026 Financial Results and Business Highlights
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