Prothena Corporation plcQ2 loss narrower than expected, reaffirmed guidance, and highlighted pipeline progress with potential milestone payments.

Prothena Corporation reported a second-quarter 2026 adjusted loss per share of 32 cents, narrower than the Zacks Consensus Estimate of a loss of 39 cents. Revenues totaled $1.01 million, matching the consensus estimate of $1 million, and compared with $4.4 million in the year-ago quarter. The company reaffirmed its full-year 2026 guidance for net cash used in operating and investing activities of $18 million to $23 million, and expects to end 2026 with approximately $259 million in cash, cash equivalents and restricted cash at the midpoint, down $14 million from the previous midpoint guidance of $273 million due to approximately $12 million spent on share repurchases. Prothena also highlighted pipeline progress, including Roche's ongoing late-stage PARAISO study of prasinezumab for early-stage Parkinson's disease with primary completion expected in 2029, and Novo Nordisk's late-stage CLEOPATTRA study of coramitug for ATTR amyloidosis with cardiomyopathy, expected to be completed by 2029. Additionally, the company could receive a $55 million clinical milestone payment from Bristol Myers Squibb if it elects to advance the PRX019 program, with a decision expected by year-end 2026.
Prothena Corporation plcQ2 loss narrower than expected, reaffirmed guidance, and highlighted pipeline progress with potential milestone payments.
Bristol-Myers Squibb Company
Novo Nordisk A/S
Roche Holding AG