Prothena Corp (PRTA)

• Market cap: $495M
• 1 day: -0.65%
• 5 days: -5.06%
• 1 month: -33.04%
• 3 months: -33.19%
• 6 months: -46.07%
• Year to date: -32.70%
• 1 year: -56.19%
• 5 years: -22.43%
• 10 years: -74.44%
• Sector: Healthcare
• Industry: Biotechnology

Fund manager confidence

Based on 2024 Q4 regulatory disclosures by fund managers ($100M+ AUM)

104% more call options, than puts

Call options by funds: $8.78M | Put options by funds: $4.31M

66% more repeat investments, than reductions

Existing positions increased: 63 | Existing positions reduced: 38

31% more first-time investments, than exits

New positions opened: 34 | Existing positions closed: 26

4.88% more ownership

Funds ownership: 94.65% [Q3] → 99.53% (+4.88%) [Q4]

4% more funds holding

Funds holding: 161 [Q3] → 168 (+7) [Q4]

0% more funds holding in top 10

Funds holding in top 10: 3 [Q3] → 3 (+0) [Q4]

13% less capital invested

Capital invested by funds: $855M [Q3] → $741M (-$113M) [Q4]

Research analyst outlook

6 Wall Street Analysts provided 1 year price targets over the past 3 months

• Low target: $20 117% upside
• Avg. target: $60 552% upside
• High target: $110 1,096% upside

6 analyst ratings

• positive: 5 83%
• neutral: 1 17%
• negative: 0 0%

Piper Sandler Yasmeen Rahimi 22% 1-year accuracy 5 / 23 met price target	1,096% upside $110	Overweight Maintained	26 Feb 2025
HC Wainwright & Co. Andrew Fein 27% 1-year accuracy 95 / 352 met price target	422% upside $48	Buy Reiterated	24 Feb 2025
RBC Capital Brian Abrahams 3% 1-year accuracy 2 / 66 met price target	117% upside $20	Sector Perform Maintained	21 Feb 2025
Citizens Capital Markets Jason Butler 23% 1-year accuracy 9 / 40 met price target	770% upside $80	Market Outperform Reiterated	21 Feb 2025
Chardan Capital Rudy Li 0% 1-year accuracy 0 / 6 met price target	335% upside $40	Buy Maintained	21 Feb 2025