Prothena Corporation plc (PRTA)
Archived snapshot: the last successful Yahoo refresh was 8 days ago. This company is excluded from the current screener until fresh data is available; the page below is retained only as historical context.
Analyst votes
How the ratings break down
6 analyst ratings on record
- Strong Buy2
- Buy1
- Hold2
- Underperform0
- Sell1
Recommendation history
How analyst consensus evolved
2 Yahoo monthly periods
Three months ago
2.50
Last month · 6 analyst votes
Current month
2.50
Current month · 6 analyst votes
3-month trend
= Unchanged
No net change over the recorded period
Verified daily snapshots8 recorded points
| Scan | Move | Rating | Avg vote | SB | Buy | Hold | Und | Sell |
|---|---|---|---|---|---|---|---|---|
| 2026-09-24 12:39 | = | Buy | 2.50 | 2 | 1 | 2 | 0 | 1 |
| 2026-09-16 14:31 | = | Buy | 2.50 | 2 | 1 | 2 | 0 | 1 |
| 2026-09-10 16:55 | = | Buy | 2.50 | 2 | 1 | 2 | 0 | 1 |
| 2026-09-09 06:34 | ▼ +0.500 | Buy | 2.50 | 2 | 1 | 2 | 0 | 1 |
| 2026-09-07 10:58 | = | Buy | 2.00 | 2 | 1 | 2 | 0 | 0 |
| 2026-08-28 15:22 | = | Buy | 2.00 | 2 | 1 | 2 | 0 | 0 |
| 2026-08-13 | = | Buy | 2.00 | 2 | 1 | 2 | 0 | 0 |
| 2026-08-11 | · | Buy | 2.00 | 2 | 1 | 2 | 0 | 0 |
Avg vote uses Yahoo's scale: 1 is Strong Buy and 5 is Sell. A falling line means analysts became more positive; a rising line means they became more cautious. The chart uses Yahoo's four monthly periods when available. The table keeps at most one verified snapshot per UTC day; failed refreshes and stale cache fallbacks never create a new history point.
Price targetsEstimate rangeLow 8.00 · High 36.00
Low 8.00
Mean 21.40
High 36.00
share price 8.68 mean target 21.40. Analysts are spread 350% apart.
Most recent actionLast rating changeCitizens
| Firm | Citizens |
|---|---|
| Date | 2026-05-08 |
| Change | Market Outperform → Market Outperform |
Size and liquidityKey statisticsSmall · Medium liquidity
| Market cap | 0.45B USD |
|---|---|
| Cap class | Small |
| Average volume | 493,280 |
| Dollar volume per day | 4.3M |
| Liquidity | Medium |
| Analysts with a price target | 5 |
| Analysts with a rating | 6 |
| Internal score | 81.8 / 100 |
HistoryPrice target over time8 recorded points
| Date | Price | Target | Upside | Consensus |
|---|---|---|---|---|
| 2026-09-24 | 8.68 | 21.40 | +146.5% | Buy |
| 2026-09-16 | 8.29 | 21.40 | +158.1% | Buy |
| 2026-09-10 | 9.11 | 21.40 | +135.0% | Buy |
| 2026-09-09 | 9.54 | 21.40 | +124.3% | Buy |
| 2026-09-07 | 9.82 | 21.40 | +117.9% | Buy |
| 2026-08-28 | 9.30 | 21.40 | +130.1% | Buy |
| 2026-08-13 | 9.26 | 21.40 | +131.1% | Buy |
| 2026-08-11 | 9.17 | 21.40 | +133.4% | Buy |