Prothena (PRTA)
Develops investigational protein-dysregulation therapies with a partner-heavy clinical pipeline.
$8.70
vs last close−0.29 (−3.23%)
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Next report
Nov 5, 26
in 43 days
EPS estimate
−$0.38
Revenue estimate
$9.6M
Fiscal quarter
Q3 FY26
EPSReportedEstimate
Feb '25May '25Aug '25Nov '25Feb '26May '26Aug '26Nov '26
Reported−$1.08−$1.12−$1.86−$0.67−$0.44$0.60−$0.32Pending
Estimate−$1.02−$0.92−$1.11−$0.60−$0.45−$0.31−$0.39−$0.38
Surprise−5.9%−21.7%−67.6%−11.7%+2.2%+293.5%+17.9%—
RevenueReportedEstimate
Feb '25May '25Aug '25Nov '25Feb '26May '26Aug '26Nov '26
Reported$2.1M$2.8M$4.4M$2.4M$21.0K$51.1M$1.0MPending
Estimate$7.5M$15.3M$6.6M$666.7K$1.3M$808.9K$421.7K$9.6M
Surprise−71.8%−81.6%−33.4%+262.2%−98.4%+6,215.2%+139.5%—
HistoryUpcoming
| Date / Period | Estimate | Reported | Surprise |
|---|---|---|---|
| Dec 2027 | −$0.36 | — | — |
| Sep 2027 | −$0.37 | — | — |
| Jun 2027 | −$0.39 | — | — |
| Mar 2027 | −$0.41 | — | — |
| Dec 2026 | $0.05 | — | — |
| Nov 2026 | −$0.38 | — | — |
| Aug 2026 | −$0.39 | −$0.32 | +17.9% |
| May 2026 | −$0.31 | $0.60 | +293.5% |
| Feb 2026 | −$0.45 | −$0.44 | +2.2% |
| Nov 2025 | −$0.60 | −$0.67 | −11.7% |
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| Date / Period | EPS est | EPS | Surprise | Revenue est | Revenue | Surprise | Reaction |
|---|---|---|---|---|---|---|---|
| Dec 2027 | −$0.36 | — | — | $831.9K | — | — | — |
| Sep 2027 | −$0.37 | — | — | $859.2K | — | — | — |
| Jun 2027 | −$0.39 | — | — | $887.4K | — | — | — |
| Mar 2027 | −$0.41 | — | — | $916.6K | — | — | — |
| Dec 2026 | $0.05 | — | — | $25.8M | — | — | — |
| Nov 5, 2026 | −$0.38 | — | — | $9.6M | — | — | — |
| Aug 6, 2026 | −$0.39 | −$0.32 | +17.9% | $421.7K | $1.0M | +139.5% | +2.1% |
| May 7, 2026 | −$0.31 | $0.60 | +293.5% | $808.9K | $51.1M | +6,215.2% | +2.0% |
| Feb 19, 2026 | −$0.45 | −$0.44 | +2.2% | $1.3M | $21.0K | −98.4% | −0.1% |
| Nov 6, 2025 | −$0.60 | −$0.67 | −11.7% | $666.7K | $2.4M | +262.2% | +4.8% |
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