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- Summary
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- Profile
- Historical

Data

- Earnings (+69.1% Growth)
- Ratings (6.8 Score)
- Holders

Upcoming Events

- Earnings (10/29/26)

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: 8.35 -0.15 (1.76%)
Prev. Close $8.50  
Open$8.58 
52 Wk High$76.42 
52 Wk Low$28.20 
Day High$8.62 
Day Low$8.24 
P/E N/A  
EPS$-2.84 
Volume670,256 

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

Oct 15, 2026 04:22 PM Form 4 PROTHENA CORP PUBLIC For: Oct 13 Filed by: SCULLY WILLIAM P
Oct 9, 2026 09:43 AM Form 4 PROTHENA CORP PUBLIC For: Oct 07 Filed by: SCULLY WILLIAM P
Oct 6, 2026 01:54 PM Form 4 PROTHENA CORP PUBLIC For: Oct 02 Filed by: SCULLY WILLIAM P
Oct 2, 2026 04:18 PM Form 8-K PROTHENA CORP PUBLIC For: Oct 02
Sep 30, 2026 05:10 PM Form 4 PROTHENA CORP PUBLIC For: Sep 29 Filed by: SCULLY WILLIAM P
Sep 29, 2026 05:38 PM Form 4 PROTHENA CORP PUBLIC For: Sep 28 Filed by: SCULLY WILLIAM P
Sep 21, 2026 04:24 PM Form 4 PROTHENA CORP PUBLIC For: Sep 18 Filed by: SCULLY WILLIAM P
Sep 9, 2026 04:05 PM Prothena to Participate in the H.C. Wainwright 28th Annual Global Investment Conference
Aug 21, 2026 02:33 PM Form 4 PROTHENA CORP PUBLIC For: Aug 20 Filed by: SCULLY WILLIAM P
Aug 19, 2026 10:19 AM Form SCHEDULE 13G/A PROTHENA CORP PUBLIC Filed by: Fennell Todd W.
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