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- Historical

Data

- Earnings (+113.7% Growth)
- Ratings (6.8 Score)
- Holders

Upcoming Events

- Earnings (8/10/26)

News

- Analyst Ratings
- Earnings Related
- Guidance
- Insider Trades
- Mgmt Changes
- M & A
- Retail Sales
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- Stock Buybacks
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Prothena Corp. (NQ:PRTA)
Delayed: 8.93 +0.44 (5.18%)
Prev. Close $8.49  
Open$8.63 
52 Wk High$76.42 
52 Wk Low$28.20 
Day High$9.15 
Day Low$8.52 
P/E N/A  
EPS$-2.84 
Volume1,390,844 

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

Jun 18, 2026 11:39 AM Form 4 PROTHENA CORP PUBLIC For: Jun 16 Filed by: SCULLY WILLIAM P
Jun 17, 2026 06:36 AM Prothena Corp. (PRTA) 2K contracts of December 6 puts trade
Jun 16, 2026 04:59 PM Form 4 PROTHENA CORP PUBLIC For: Jun 15 Filed by: SCULLY WILLIAM P
Jun 12, 2026 06:00 PM Form 4 PROTHENA CORP PUBLIC For: Jun 11 Filed by: SCULLY WILLIAM P
Jun 12, 2026 04:19 PM Form 3 PROTHENA CORP PUBLIC For: Jun 08 Filed by: Isaacs Michael John
Jun 9, 2026 08:01 AM Form 144 PROTHENA CORP PUBLIC Filed by: Malecek Michael J
Jun 5, 2026 01:47 PM Form 4 PROTHENA CORP PUBLIC For: Jun 04 Filed by: SCULLY WILLIAM P
Jun 3, 2026 12:42 PM Form 4 PROTHENA CORP PUBLIC For: Jun 02 Filed by: SCULLY WILLIAM P
May 26, 2026 02:52 PM Form 4 PROTHENA CORP PUBLIC For: May 22 Filed by: SCULLY WILLIAM P
May 15, 2026 09:29 PM Form 4 PROTHENA CORP PUBLIC For: May 15 Filed by: WELCH DANIEL G
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