Prothena Corp. Public Ltd. Co.

What Prothena Corp. Public Ltd. Co. reported on August 6, 2026

The quarter ending June 30, 2026, against the same quarter a year earlier.

These are single quarters, not a trailing year — the figures elsewhere on this site cover twelve months and will be much larger. A seasonal business swings a long way between the two: ServiceNow earns $2.0B of free cash flow in its December quarter and $0.5B in its June one.

Compared against the same quarter a year earlier, not against an analyst forecast. A “beat” or “miss” needs a consensus estimate, which is licensed data we do not carry — and getting it wrong is worse than leaving it out.

What management said

“During the quarter, we were excited to see Roche publish results in The Lancet from the Phase 2b PADOVA trial evaluating prasinezumab in patients with early Parkinson’s disease, further supporting prasinezumab’s potential as a disease-modifying therapy. Roche is currently evaluating prasinezumab in the Phase 3 PARAISO trial, with primary completion expected in 2029,”

Quoted verbatim from the release, and shown only when the filing attributes it to a named person.

How the share price reacted

Releases land after the close or before the open, so the move is the session that follows.

What Prothena Corp. Public Ltd. Co. does

Prothena Corporation plc is a late-stage clinical biotechnology company with expertise in protein dysregulation with the potential to change the course of devastating neurodegenerative and rare peripheral amyloid diseases. Fueled by its deep scientific expertise built over decades of research, Prothena is advancing a pipeline of therapeutic candidates for a number of indications and novel targets for which its ability to integrate scientific insights around neurological dysfunction and the biology of misfolded proteins can be leveraged. Prothena’s pipeline includes both wholly-owned and partnered programs being developed for the potential treatment of diseases including Parkinson’s disease, ATTR amyloidosis with cardiomyopathy, Alzheimer’s disease, Amyotrophic lateral sclerosis (ALS) and a number of other neurodegenerative diseases. Prothena is developing and applying CYTOPE ® , a novel technology that incorporates a cell-internalizing domain to drive efficient cytosolic delivery with highly specific marcomolecular effectors.

The company’s own description, as it appears at the foot of the release.