Prothena Corporation plc (PRTA)
NASDAQ: PRTA · Real-Time Price · USD
9.72
+0.47 (5.08%)
At close: Mar 31, 2026, 4:00 PM EDT
9.82
+0.10 (1.03%)
Pre-market: Apr 1, 2026, 7:47 AM EDT
Prothena Corporation Employees
Prothena Corporation had 67 employees as of December 31, 2025. The number of employees decreased by 96 or -58.90% compared to the previous year.
Employees
67
Change (1Y)
-96
Growth (1Y)
-58.90%
Revenue / Employee
$144,537
Profits / Employee
-$3,643,164
Market Cap
523.26M
Employees Chart
Employees History
| Date | Employees | Change (1Y) | Growth (1Y) |
|---|---|---|---|
| Dec 31, 2025 | 67 | -96 | -58.90% |
| Dec 31, 2024 | 163 | -10 | -5.78% |
| Dec 31, 2023 | 173 | 46 | 36.22% |
| Dec 31, 2022 | 127 | 45 | 54.88% |
| Dec 31, 2021 | 82 | 16 | 24.24% |
| Dec 31, 2020 | Upgrade Pro | Upgrade Pro | Upgrade Pro |
| Dec 31, 2019 | Upgrade Pro | Upgrade Pro | Upgrade Pro |
| Dec 31, 2018 | Upgrade Pro | Upgrade Pro | Upgrade Pro |
| Dec 31, 2017 | Upgrade Pro | Upgrade Pro | Upgrade Pro |
| Dec 31, 2016 | Upgrade Pro | Upgrade Pro | Upgrade Pro |
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PRTA News
- 10 days ago - Prothena Partners Present Data Supporting Next Generation Treatments for Parkinson's and Alzheimer's Disease at AD/PD™ 2026 - Business Wire
- 22 days ago - Prothena Announces Achievement of $50 Million Clinical Milestone Payment from Novo Nordisk Related to Ongoing Phase 3 Clinical Trial for Coramitug (Formerly PRX004) in ATTR Amyloidosis with Cardiomyopathy - Business Wire
- 4 weeks ago - Prothena: A Hold With 2 Late-Stage Programs Underway But With Caution - Seeking Alpha
- 4 weeks ago - Prothena Announces up to $100 Million Share Repurchase Plan - Business Wire
- 5 weeks ago - Prothena Corporation plc (PRTA) Q4 2025 Earnings Call Transcript - Seeking Alpha
- 5 weeks ago - Prothena Reports Fourth Quarter and Full Year 2025 Financial Results, and Provides Financial Guidance and Business Highlights - Business Wire
- 6 weeks ago - Prothena to Report Fourth Quarter and Full Year 2025 Financial Results on February 19, 2026 - Business Wire
- 3 months ago - Prothena Announces Board of Directors Update - Business Wire