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5.9803
4.56%
0.2803
Prothena Corporation Plc stock is traded at $5.9803, with a volume of 1.01M.
It is up +4.56% in the last 24 hours and down -16.99% over the past month.
Prothena Corp PLC is a clinical biotechnology company that focuses on protein dysregulation and a pipeline of investigational therapeutics with the potential to change the course of devastating neurodegenerative and rare and peripheral amyloid diseases. The company's clinical pipeline of antibody-based product candidates targets a range of indications, including Amyloid Light-chain (AL) amyloidosis (NEOD001), Parkinson's disease and other related synucleinopathies (PRX002), and inflammatory diseases, including ATTR amyloidosis [Coramitug (PRX004)], Alzheimer's disease (PRX123), Neurodegeneration (PRXPRX019), and Others.
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Previous Close:
$5.70
Open:
$5.7
24h Volume:
1.01M
Relative Volume:
0.71
Market Cap:
$283.13M
Revenue:
$217.25M
Net Income/Loss:
$-50.92M
P/E Ratio:
-5.9803
EPS:
-1
Net Cash Flow:
$-100.85M
1W Performance:
+16.86%
1M Performance:
-16.99%
6M Performance:
-50.13%
1Y Performance:
-69.50%
1-Day Range:
$5.67
$6.03
1-Week Range:
$4.95
$6.03
52-Week Range:
$4.32
$25.42
Prothena Corporation Plc Stock (PRTA) Company Profile
Name
Prothena Corporation Plc
Sector
Industry
Phone
011-353-1-236-2500
Address
77 SIR JOHN ROGERSON'S QUAY, BLOCK C, DUBLIN 2
Compare PRTA with other stocks
| Stocks | Price | Market Cap | Revenue | Net Income | Cash Flow | EPS |
|---|---|---|---|---|---|---|
PRTA
Prothena Corporation Plc
|
5.98 | 283.13M | 217.25M | -50.92M | -100.85M | -1.00 |
|
VRTX
Vertex Pharmaceuticals Inc
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448.69 | 115.95B | 11.10B | -988.90M | -1.26B | -3.92 |
|
REGN
Regeneron Pharmaceuticals Inc
|
516.92 | 56.52B | 14.09B | 4.50B | 2.96B | 39.28 |
|
ALNY
Alnylam Pharmaceuticals Inc
|
315.99 | 39.44B | 2.35B | -269.70M | -75.39M | -2.09 |
|
ARGX
Argen X Se Adr
|
545.29 | 35.14B | 2.58B | 1.06B | -1.28B | 16.33 |
|
ONC
Beone Medicines Ltd Adr
|
255.78 | 28.51B | 3.81B | -644.79M | -669.77M | -6.24 |
Prothena Corporation Plc Stock (PRTA) Upgrades & Downgrades
| Date | Action | Analyst | Rating Change |
|---|---|---|---|
| May-28-25 | Downgrade | BofA Securities | Neutral → Underperform |
| May-27-25 | Downgrade | Cantor Fitzgerald | Overweight → Neutral |
| May-27-25 | Downgrade | Jefferies | Buy → Hold |
| May-27-25 | Downgrade | Oppenheimer | Outperform → Perform |
| Dec-20-24 | Initiated | Chardan Capital Markets | Buy |
| Jan-30-24 | Downgrade | BofA Securities | Buy → Neutral |
| Dec-12-23 | Initiated | Deutsche Bank | Buy |
| Apr-24-23 | Initiated | SVB Securities | Outperform |
| Jan-27-23 | Initiated | Piper Sandler | Overweight |
| Nov-04-22 | Downgrade | RBC Capital Mkts | Outperform → Sector Perform |
| Sep-28-22 | Upgrade | BofA Securities | Neutral → Buy |
| Nov-19-21 | Initiated | JMP Securities | Mkt Outperform |
| Jun-18-21 | Upgrade | BofA Securities | Underperform → Neutral |
| Jun-08-21 | Reiterated | Oppenheimer | Outperform |
| May-26-21 | Initiated | Citigroup | Buy |
| Feb-26-21 | Upgrade | RBC Capital Mkts | Sector Perform → Outperform |
| Feb-12-21 | Upgrade | Jefferies | Hold → Buy |
| Feb-02-21 | Upgrade | BTIG Research | Neutral → Buy |
| Dec-07-20 | Initiated | H.C. Wainwright | Buy |
| Jul-09-20 | Upgrade | Oppenheimer | Perform → Outperform |
| Nov-19-19 | Upgrade | Evercore ISI | In-line → Outperform |
| May-21-18 | Downgrade | Barclays | Equal Weight → Underweight |
| Apr-23-18 | Downgrade | Jefferies | Buy → Hold |
| Apr-05-18 | Reiterated | Barclays | Overweight |
| Nov-20-17 | Downgrade | Wedbush | Outperform → Neutral |
| Sep-29-17 | Reiterated | BTIG Research | Buy |
| Sep-15-17 | Initiated | RBC Capital Mkts | Outperform |
| Aug-17-17 | Initiated | Evercore ISI | Outperform |
| Jul-11-17 | Initiated | Jefferies | Buy |
| Apr-12-17 | Initiated | Cantor Fitzgerald | Overweight |
| Apr-12-17 | Initiated | Piper Jaffray | Overweight |
| Mar-02-17 | Initiated | Instinet | Buy |
| Dec-21-16 | Initiated | SunTrust | Buy |
| Nov-03-16 | Initiated | Deutsche Bank | Buy |
| Aug-04-16 | Reiterated | Barclays | Overweight |
| May-13-16 | Initiated | Barclays | Overweight |
| Feb-19-16 | Reiterated | Wedbush | Outperform |
| Jan-21-16 | Initiated | Credit Suisse | Outperform |
View All
Prothena Corporation Plc Stock (PRTA) Latest News
Prothena (NASDAQ:PRTA) Shares Pass Below 200 Day Moving Average – Time to Sell? - Defense World
Roche’s Phase 3 Move Boosts Outlook for Prothena Corporation plc (PRTA) - Insider Monkey
(PRTA) Trading Signals - news.stocktradersdaily.com
Financial Analysis: Prothena Corporation plc (PRTA)’s Ratios Unveil Key Insights - DWinneX
Prothena stock rises on Parkinson's trial update (PRTA:NASDAQ) - Seeking Alpha
Prothena’s Prasinezumab Advances to Phase III for Parkinson’s - TipRanks
Prothena partner Roche advances Parkinson’s drug to phase 3 By Investing.com - Investing.com Nigeria
Prothena’s Partner Roche to Advance Prasinezumab into Phase III Development for Early-Stage Parkinson's Disease - BioSpace
Prothena's Partner to Advance Potential Parkinson's Treatment to Phase 3 Development - marketscreener.com
Prothena's Partner Roche to Advance Prasinezumab into Phase III - GuruFocus
Prothena’s SWOT analysis: stock faces challenges after trial setback By Investing.com - Investing.com South Africa
Prothena’s SWOT analysis: stock faces challenges after trial setback - Investing.com
Cantor Fitzgerald Forecasts Prothena FY2026 Earnings - Defense World
Two Sigma Investments LP Buys 27,887 Shares of Prothena Co. plc (NASDAQ:PRTA) - Defense World
Prothena Co. plc (NASDAQ:PRTA) Short Interest Update - Defense World
Bank of America Corp DE Purchases 36,944 Shares of Prothena Co. plc (NASDAQ:PRTA) - Defense World
(PRTA) Technical Data - news.stocktradersdaily.com
Millennium Management LLC Has $1.70 Million Holdings in Prothena Co. plc (NASDAQ:PRTA) - Defense World
PROTHENA LEAD PLAINTIFF DEADLINE ALERT: Faruqi & Faruqi, LLP Encourages Investors Who Suffered Losses Exceeding $50,000 In Prothena Corporation plc To Contact The Firm - ACCESS Newswire
ProShare Advisors LLC Buys 3,312 Shares of Prothena Co. plc (NASDAQ:PRTA) - Defense World
Piper Sandler Reduces Prothena (PRTA) Price Target to $81 from $110 Following AFFIRM-AL Trial Discontinuation - MSN
Chardan Lowers Prothena (PRTA) Price Target Following AFFIRM-AL Trial Failure - MSN
Prothena Co. plc (NASDAQ:PRTA) Given Consensus Recommendation of “Hold” by Brokerages - Defense World
Chardan Capital Decreases Earnings Estimates for Prothena - Defense World
Citizens JMP Slashes Prothena (PRTA) to $29 from $78 After AFFIRM-AL Trial Fails - MSN
H.C. Wainwright Maintains Buy Rating on Prothena Corporation (NASDAQ:PRTA), Cuts PT - Insider Monkey
FY2027 EPS Estimates for Prothena Decreased by HC Wainwright - Defense World
Prothena (NASDAQ:PRTA) Given “Underperform” Rating at Bank of America - Defense World
Bank of America Reiterates “Underperform” Rating for Prothena (NASDAQ:PRTA) - Defense World
Bank of America Reaffirms “Underperform” Rating for Prothena (NASDAQ:PRTA) - Defense World
Prothena (NASDAQ:PRTA) Receives Underperform Rating from Bank of America - Defense World
The Prothena Corporation plc (NASDAQ:PRTA) Analysts Have Been Trimming Their Sales Forecasts - simplywall.st
BofA cuts Prothena stock rating, slashes target to $4 By Investing.com - Investing.com Nigeria
Prothena Corp (PRTA) Sees Downgrade and Price Target Cut by B of A Securities | PRTA Stock News - GuruFocus
Oppenheimer Downgrades Prothena Corporation (NASDAQ:PRTA) to Perform from Outperform - Insider Monkey
BofA Securities Downgrades Prothena to Underperform From Neutral, $4 Price Target - marketscreener.com
Prothena (PRTA) Faces Downgrade After Clinical Trial Setback | P - GuruFocus
Prothena (PRTA) Faces Downgrade After Clinical Trial Setback | PRTA Stock News - GuruFocus
Prothena's Late-Stage Study for AL Amyloidosis Fails, Stock Down - MSN
Prothena (PRTA) Downgraded by BofA Analyst with Lower Price Targ - GuruFocus
Prothena (NASDAQ:PRTA) Price Target Lowered to $81.00 at Piper Sandler - Defense World
Prothena (NASDAQ:PRTA) Price Target Cut to $29.00 by Analysts at JMP Securities - Defense World
Prothena (NASDAQ:PRTA) Lowered to Hold Rating by Jefferies Financial Group - Defense World
Prothena (NASDAQ:PRTA) Given New $14.00 Price Target at HC Wainwright - Defense World
Traders Purchase High Volume of Put Options on Prothena (NASDAQ:PRTA) - Defense World
Oppenheimer cuts Prothena stock rating after trial setback By Investing.com - Investing.com Nigeria
Prothena (PRTA) Shares Plunge After Key Trial Setback - GuruFocus
Prothena: Despite Phase 3 Trial Failure, Other Neurodegenerative Programs In Place (PRTA) - Seeking Alpha
Peninsula biotech Prothena falters — again — and layoffs are on the waySan Francisco Business Times - The Business Journals
Prothena Shares Fall, Stock Downgraded by Multiple Research Firms After Birtamimab Development Discontinued - marketscreener.com
Prothena Corp (PRTA) Downgraded by Oppenheimer | PRTA Stock News - GuruFocus
Prothena Corporation Plc Stock (PRTA) Financials Data
Revenue
Net Income
Cash Flow
EPS
Prothena Corporation Plc Stock (PRTA) Insider Trading
| Insider Trading | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total |
|---|---|---|---|---|---|---|---|
| EcoR1 Capital, LLC | 10% Owner |
May 06 '25 |
Sale |
7.64 |
1,984,053 |
15,164,712 |
5,304,596 |
| EcoR1 Capital, LLC | 10% Owner |
May 05 '25 |
Sale |
8.11 |
977,693 |
7,930,166 |
7,288,649 |
| SCULLY WILLIAM P | 10% Owner |
Jan 14 '25 |
Buy |
12.79 |
100,000 |
1,279,040 |
735,993 |
| SCULLY WILLIAM P | 10% Owner |
Dec 18 '24 |
Buy |
13.93 |
73,436 |
1,022,670 |
1,297,693 |
| SCULLY WILLIAM P | 10% Owner |
Dec 31 '24 |
Buy |
13.01 |
32,000 |
416,393 |
650,193 |
| SCULLY WILLIAM P | 10% Owner |
Dec 20 '24 |
Buy |
15.91 |
2,000 |
31,813 |
618,693 |
1.59%
0.56%
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