Filing Flows › Prothena Corp Public (PRTA) › Q1 2026
Prothena Corp Public (PRTA) Q1 2026 earnings results (first quarter 2026)
10-Q filed May 7, 2026
Prothena Corp Public (PRTA) reported revenue of $51.1M for the first quarter 2026 (Q1 2026), up 18-fold from a year earlier and up 2,433-fold from the quarter before. Operating margin was 58.8%, net earnings $32.7M (64.1% of revenue).
Prothena Corp Public, Q1 2026: revenue $51.1M (18× year over year), operating margin 58.8%, net earnings $32.7M, operating cash flow $28.9M. The chart follows the revenue to costs, profit and cash.
| Q1 2026 | Amount | Q/Q | Y/Y |
|---|---|---|---|
| Revenue | $51.1M | 2,433× | 18× |
| Operating profit | $30.0M | — | — |
| Net earnings | $32.7M | — | — |
| Operating cash flow | $28.9M | — | — |
What changed
Revenue was $51.1M in Q1 2026, up 1706% year over year and up 243157% from the previous quarter. Revenue from license and intellectual property was the largest line at 98% of revenue. Revenue from license and intellectual property added $50.0M year over year (up 100000%), 104% of the total change. Collaboration revenue declined 63%.
Operating profit was $30.0M, a 58.8% margin (up 2377.8 points year over year). Total costs fell 69% while revenue rose 1706%. Net earnings were $32.7M. The effective tax rate was 0.0%.
Operating cash flow was $28.9M, 88% of net earnings. Non-cash charges added back $184K of depreciation and amortization and $6.9M of share-based compensation. Working capital and other items used $10.9M.
Questions
What was Prothena Corp Public's revenue in the first quarter 2026?
Prothena Corp Public (PRTA) reported revenue of $51.1M for the first quarter 2026 (Q1 2026), up 18-fold from a year earlier and up 2,433-fold from the quarter before.
Was Prothena Corp Public profitable in the first quarter 2026?
Operating profit was $30.0M (58.8% of revenue) and net earnings $32.7M.