Prothena (NASDAQ:PRTA - Get Free Report) posted its quarterly earnings data on Thursday. The biotechnology company reported ($0.32) EPS for the quarter, missing analysts' consensus estimates of ($0.23) by ($0.09), FiscalAI reports. Prothena had a negative net margin of 80.68% and a negative return on equity of 16.45%. The company had revenue of $0.62 million for the quarter, compared to analyst estimates of $9.58 million.
Prothena Stock Performance
PRTA traded up $0.08 on Friday, reaching $7.97. 421,781 shares of the company's stock were exchanged, compared to its average volume of 544,602. The company has a market cap of $417.23 million, a price-to-earnings ratio of -16.60, a PEG ratio of 2.92 and a beta of -0.20. Prothena has a twelve month low of $7.73 and a twelve month high of $11.80. The company's 50 day moving average is $8.65 and its 200-day moving average is $9.20.
Insider Transactions at Prothena
In related news, major shareholder William P. Scully bought 50,000 shares of the stock in a transaction dated Friday, October 23rd. The stock was acquired at an average price of $8.07 per share, for a total transaction of $403,500.00. Following the completion of the purchase, the insider owned 1,187,000 shares in the company, valued at $9,579,090. This represents a 4.40% increase in their ownership of the stock. The transaction was disclosed in a document filed with the Securities & Exchange Commission, which can be accessed through this hyperlink. In the last three months, insiders acquired 1,017,500 shares of company stock valued at $8,654,850. 10.40% of the stock is currently owned by corporate insiders.
Analyst Ratings Changes
A number of equities analysts have recently weighed in on PRTA shares. Weiss Ratings lowered shares of Prothena from a "sell (d-)" rating to a "sell (e+)" rating in a research report on Thursday, October 29th. UBS Group reiterated a "buy" rating on shares of Prothena in a report on Friday, July 24th. HC Wainwright reissued a "buy" rating and set a $30.00 price target on shares of Prothena in a research note on Friday, July 24th. Finally, Wall Street Zen lowered Prothena from a "buy" rating to a "hold" rating in a research note on Saturday, July 25th. One research analyst has rated the stock with a Strong Buy rating, four have issued a Buy rating, one has issued a Hold rating and one has issued a Sell rating to the stock. According to MarketBeat, Prothena currently has an average rating of "Moderate Buy" and a consensus price target of $20.00.
Check Out Our Latest Research Report on PRTA
About Prothena
(
Get Free Report)
Prothena Corporation plc NASDAQ: PRTA is a clinical-stage biotechnology company focused on discovering and developing novel medicines for serious neurodegenerative and rare peripheral diseases. Its research is centered on disease-causing proteins, including amyloid-beta, alpha-synuclein and transthyretin, with the goal of creating antibody-based therapies that address underlying disease mechanisms.
The company's product pipeline has included birtamimab, an investigational antibody being developed for the treatment of AL amyloidosis, and prasinezumab, an investigational alpha-synuclein antibody being developed in collaboration with Roche for certain forms of Parkinson's disease.
See Also

This instant news alert was generated by narrative science technology and financial data from MarketBeat in order to provide readers with the fastest reporting and unbiased coverage. Please send any questions or comments about this story to contact@marketbeat.com.
Before you consider Prothena, you'll want to hear this.
MarketBeat keeps track of Wall Street's top-rated and best performing research analysts and the stocks they recommend to their clients on a daily basis. MarketBeat has identified the five stocks that top analysts are quietly whispering to their clients to buy now before the broader market catches on... and Prothena wasn't on the list.
While Prothena currently has a Moderate Buy rating among analysts, top-rated analysts believe these five stocks are better buys.
View The Five Stocks Here
The AI boom extends far beyond the biggest tech names. Discover 10 companies supplying the memory, storage, networking, semiconductor manufacturing, and power infrastructure that make AI possible. Learn where the next wave of AI investment opportunities may emerge—and the key risks investors should watch as the global AI buildout accelerates.
Get This Free Report
Continue following MarketBeat
Add MarketBeat as your preferred source on Google to see our latest stories in your feed.
Like this article? Share it with a colleague.
Link copied to clipboard.