PRTA - Prothena Corporation plc Ordinary Shares -  [ ]

Seasonality of Returns By Period

Average daily return by calendar bucket (ClosePriceSA).

Day of Week

Week of Month

Month of Year

Seasonal Path

YTD vs Last Year vs Lookback Avg · closes rebased to 100 at each year's first session
Ticker Details
Prothena Corporation plc Ordinary Shares
Prothena Corp PLC is a biotechnology company. It discovers and develops novel antibodies for the potential treatment of a broad range of diseases that involve protein misfolding or cell adhesion.
IPO Date: December 21, 2012
Sector: Healthcare
Industry: Biotech
Market Cap: $435.34M
Activated in VL: True
Average Daily Range
Avg Daily Range: $0.90 | 3.11%
Avg Daily Range (30 D): $0.22 | 2.48%
Avg Daily Range (90 D): $0.25 | 2.83%
Institutional Daily Volume
Avg Daily Volume: .38M
Avg Daily Volume (30 D): .33M
Avg Daily Volume (90 D): .38M
Trade Size
Avg Trade Size (Sh.): 76
Avg Trade Size (Sh.) (30 D): 59
Avg Trade Size (Sh.) (90 D): 53
Institutional Trades
Total Institutional Trades: 3,751
Avg Institutional Trade: $1.79M
Avg Institutional Trade (30 D): $1.07M
Avg Institutional Trade (90 D): $.99M
Avg Institutional Trade Volume: .06M
Avg Institutional Trades (Per Day): 1
Market Closing Trades
Avg Closing Trade: $2.09M
Avg Closing Trade (30 D): $1.12M
Avg Closing Trade (90 D): $.99M
Avg Closing Volume: 72.27K
 
News
Oct 8, 2026 @ 2:40 PM
CRMD vs. PRTA: Which Stock Should Value Investors ...
Source: Na
Jul 7, 2026 @ 10:42 AM
Transthyretin Amyloidosis Treatment Market Size to...
Source: Sns Insider
Nov 12, 2025 @ 2:24 PM
Novo Nordisk's $100 Million Coramitug Shows Promis...
Source: Vandana Singh
Aug 29, 2025 @ 2:09 PM
FDA Tightens Safety Guidelines For Biogen Leqembi ...
Source: Vandana Singh
Feb 17, 2025 @ 11:10 PM
Kuehn Law Encourages Investors of Prothena Corpora...
Source: N/A
Financials
  TTM Q2 2026 Q1 2026
Basic EPS $-.83 $-.36 $.61
Diluted EPS $-.84 $-.36 $.6
Revenue $54.53M $1.01M $51.08M
Gross Profit
Net Income / Loss $-43.99M $-18.58M $32.72M
Operating Income / Loss $-55.51M $-21.1M $30.04M
Cost of Revenue
Net Cash Flow $-83.24M $-19.34M $M
PE Ratio