16.73
price down icon16.56%   -3.32
after-market After Hours: 17.00 0.27 +1.61%
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Prothena Corporation Plc stock is traded at $16.73, with a volume of 3.09M. It is down -16.56% in the last 24 hours and down -24.88% over the past month. Prothena Corp PLC is a biotechnology company that focuses on protein dysregulation and a pipeline of investigational therapeutics with the potential to change the course of devastating rare neurodegenerative 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 psoriasis and psoriatic arthritis (PRX003) and ATTR amyloidosis (PRX004).
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Previous Close:
$20.05
Open:
$19.96
24h Volume:
3.09M
Relative Volume:
7.47
Market Cap:
$874.11M
Revenue:
$217.25M
Net Income/Loss:
$-50.92M
P/E Ratio:
-11.78
EPS:
-1.42
Net Cash Flow:
$-100.85M
1W Performance:
-23.95%
1M Performance:
-24.88%
6M Performance:
-32.46%
1Y Performance:
-65.33%
1-Day Range:
Value
$15.52
$19.96
1-Week Range:
Value
$15.52
$22.25
52-Week Range:
Value
$15.52
$55.89

Prothena Corporation Plc Stock (PRTA) Company Profile

Name
Name
Prothena Corporation Plc
Name
Phone
011-353-1-236-2500
Name
Address
77 SIR JOHN ROGERSON'S QUAY, BLOCK C, DUBLIN 2
Name
Employee
173
Name
Twitter
@ProthenaCorp
Name
Next Earnings Date
2024-08-08
Name
Latest SEC Filings
Name
PRTA's Discussions on Twitter

Prothena Corporation Plc Stock (PRTA) Upgrades & Downgrades

Date Action Analyst Rating Change
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

pulisher
10:34 AM

Prothena (NASDAQ:PRTA) Hits New 52-Week Low at $18.40 - MarketBeat

10:34 AM
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08:58 AM

Prothena (NASDAQ:PRTA) Earns Overweight Rating from Cantor Fitzgerald - MarketBeat

08:58 AM
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06:51 AM

Systematic Financial Management LP Purchases 39,771 Shares of Prothena Co. plc (NASDAQ:PRTA) - MarketBeat

06:51 AM
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05:50 AM

Prothena's SWOT analysis: biotech stock faces high-risk, high-reward pipeline - Investing.com

05:50 AM
pulisher
Sep 28, 2024

Prothena Announces Leadership Team Updates - StockTitan

Sep 28, 2024
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Sep 27, 2024

Prothena names Chad Swanson as new Chief Development Officer - Investing.com

Sep 27, 2024
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Sep 27, 2024

Profund Advisors LLC Has $373,000 Stock Position in Prothena Co. plc (NASDAQ:PRTA) - Defense World

Sep 27, 2024
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Sep 27, 2024

Profund Advisors LLC Has $373,000 Stock Position in Prothena Co. plc (NASDAQ:PRTA) - MarketBeat

Sep 27, 2024
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Sep 26, 2024

Armistice Capital LLC Increases Stock Position in Prothena Co. plc (NASDAQ:PRTA) - MarketBeat

Sep 26, 2024
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Sep 26, 2024

Renaissance Technologies LLC Reduces Stock Position in Prothena Co. plc (NASDAQ:PRTA) - Defense World

Sep 26, 2024
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Sep 24, 2024

Prologis Inc. stock rises Tuesday, still underperforms market - MarketWatch

Sep 24, 2024
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Sep 24, 2024

Prothena Co. plc (NASDAQ:PRTA) Receives Consensus Rating of "Moderate Buy" from Analysts - MarketBeat

Sep 24, 2024
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Sep 24, 2024

Petratherm Ltd Reports Key Shareholder Changes - TipRanks

Sep 24, 2024
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Sep 24, 2024

Petra Diamonds Adjusts Strategy Amidst Market Challenges - TipRanks

Sep 24, 2024
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Sep 24, 2024

ProSiebenSat.1 Media (OTCMKTS:PBSFY) Shares Up 8.7% - Defense World

Sep 24, 2024
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Sep 23, 2024

Praxis Precision Medicines (NASDAQ:PRAX) Trading Down 7.9% - MarketBeat

Sep 23, 2024
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Sep 23, 2024

Psyence Biomedical Ltd. (PBM) Stock: Uncovering 52-Week Market Trends - The InvestChronicle

Sep 23, 2024
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Sep 23, 2024

Phathom Pharmaceuticals (NASDAQ:PHAT) Shares Down 4% - MarketBeat

Sep 23, 2024
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Sep 23, 2024

A look into Prothena Corporation plc (PRTA)’s deeper side - SETE News

Sep 23, 2024
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Sep 23, 2024

Edge Capital Group LLC Has $506,000 Holdings in Palantir Technologies Inc. (NYSE:PLTR) - Defense World

Sep 23, 2024
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Sep 23, 2024

Tri Locum Partners LP Trims Position in Praxis Precision Medicines, Inc. (NASDAQ:PRAX) - MarketBeat

Sep 23, 2024
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Sep 23, 2024

Federated Hermes Inc. Has $827,000 Position in Proto Labs, Inc. (NYSE:PRLB) - Defense World

Sep 23, 2024
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Sep 22, 2024

Palantir Technologies Inc. (NYSE:PLTR) Shares Sold by Brighton Jones LLC - Defense World

Sep 22, 2024
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Sep 22, 2024

43,861 Shares in Prothena Co. plc (NASDAQ:PRTA) Bought by Federated Hermes Inc. - MarketBeat

Sep 22, 2024
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Sep 22, 2024

Prothena Co. plc (NASDAQ:PRTA) Shares Acquired by Rhumbline Advisers - Defense World

Sep 22, 2024
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Sep 21, 2024

Where are the Opportunities in (PRTA) - Stock Traders Daily

Sep 21, 2024
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Sep 19, 2024

Just the Facts: Provaris Energy submits offer for hydrogen tank production cell at Fiskå Facility - Proactive Investors Australia

Sep 19, 2024
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Sep 19, 2024

Provaris Energy submits offer to acquire prototype hydrogen tank production cells - Proactive Investors Australia

Sep 19, 2024
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Sep 19, 2024

Jefferies lowers Progyny price target to $24, calls selloff ‘excessive’ - TipRanks

Sep 19, 2024
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Sep 19, 2024

Market Watch Highlights: Prothena Corporation plc (PRTA) Ends on an Downturn Note at 21.48 - The Dwinnex

Sep 19, 2024
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Sep 19, 2024

Prothena Corporation plc (PRTA) deserves closer scrutiny - US Post News

Sep 19, 2024
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Sep 19, 2024

Progyny Stock Faces Its Biggest Drop Ever After Losing a Major Client. Why These Analysts Like the Stock. - Barron's

Sep 19, 2024
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Sep 19, 2024

Prothena Co. plc (NASDAQ:PRTA) Shares Sold by Arizona State Retirement System - Defense World

Sep 19, 2024
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Sep 18, 2024

PPL-001 gets US orphan drug designation for Friedreich’s ataxia - BioWorld Online

Sep 18, 2024
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Sep 18, 2024

Alert: $1 Billion Palantir Insider Selling - Baystreet.ca

Sep 18, 2024
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Sep 18, 2024

Headlands Technologies LLC Sells 2,206 Shares of Prothena Co. plc (NASDAQ:PRTA) - Defense World

Sep 18, 2024
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Sep 15, 2024

Bank of New York Mellon Corp Acquires 19,578 Shares of Prothena Co. plc (NASDAQ:PRTA) - Defense World

Sep 15, 2024
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Sep 14, 2024

Investors bid Prothena (NASDAQ:PRTA) up US$96m despite increasing losses YoY, taking five-year CAGR to 21% - Simply Wall St

Sep 14, 2024
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Sep 14, 2024

Prothena Co. plc (NASDAQ:PRTA) Shares Sold by TD Asset Management Inc - Defense World

Sep 14, 2024
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Sep 13, 2024

Prothena (NASDAQ:PRTA) Stock Price Up 7.4% - MarketBeat

Sep 13, 2024
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Sep 10, 2024

Learn to Evaluate (PRTA) using the Charts - Stock Traders Daily

Sep 10, 2024
pulisher
Sep 09, 2024

Zurcher Kantonalbank Zurich Cantonalbank Acquires 1,186 Shares of Prothena Co. plc (NASDAQ:PRTA) - Defense World

Sep 09, 2024
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Sep 06, 2024

Prothena Co. plc (NASDAQ:PRTA) Shares Purchased by Signaturefd LLC - Defense World

Sep 06, 2024
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Aug 29, 2024

Prothena to Participate in Upcoming Healthcare Conferences - StockTitan

Aug 29, 2024
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Aug 29, 2024

Prothena to Participate in Upcoming Healthcare Conferences - Business Wire

Aug 29, 2024
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Aug 29, 2024

Prothena Co. plc (NASDAQ:PRTA) Receives Consensus Recommendation of "Moderate Buy" from Analysts - MarketBeat

Aug 29, 2024
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Aug 29, 2024

Prothena Co. plc (NASDAQ:PRTA) Given Consensus Rating of “Moderate Buy” by Analysts - Defense World

Aug 29, 2024
pulisher
Aug 27, 2024

Prothena (NASDAQ:PRTA) Stock Price Passes Below Two Hundred Day Moving Average of $23.08 - MarketBeat

Aug 27, 2024
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Aug 27, 2024

Prothena (NASDAQ:PRTA) Share Price Crosses Below 200-Day Moving Average of $23.08 - Defense World

Aug 27, 2024
pulisher
Aug 19, 2024

What Makes Prothena (PRTA) a New Buy Stock - Yahoo Finance

Aug 19, 2024
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Aug 18, 2024

Prothena Corporation plc (PTRA): Positioning Among Top Debt-Free Stocks - Insider Monkey

Aug 18, 2024

Prothena Corporation Plc Stock (PRTA) Financials Data

Revenue

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Net Income

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Cash Flow

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EPS

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Prothena Corporation Plc Stock (PRTA) Insider Trading

Insider Trading Relationship Date Transaction Cost #Shares Value ($) #Shares Total
Walker Karin L
Chief Accounting Officer
Jan 24 '24
Sale
34.00
5,000
170,000
0
Walker Karin L
Chief Accounting Officer
Dec 20 '23
Option Exercise
13.53
5,000
67,650
5,000
Walker Karin L
Chief Accounting Officer
Dec 20 '23
Sale
37.19
5,000
185,952
0
Walker Karin L
Chief Accounting Officer
Nov 30 '23
Option Exercise
13.53
5,000
67,650
5,000
Walker Karin L
Chief Accounting Officer
Nov 30 '23
Sale
34.00
5,000
170,000
0
Walker Karin L
Chief Accounting Officer
Oct 25 '23
Option Exercise
13.53
5,000
67,650
5,000
Walker Karin L
Chief Accounting Officer
Oct 25 '23
Sale
41.04
5,000
205,191
0
Smith Brandon S.
Chief Operating Officer
Oct 11 '23
Option Exercise
11.12
4,000
44,480
4,000
Smith Brandon S.
Chief Operating Officer
Oct 11 '23
Sale
46.75
4,000
186,985
0
Karp Carol D.
Chief Regulatory Officer
Oct 04 '23
Option Exercise
12.15
5,000
60,750
5,000
$358.35
price down icon 0.05%
$21.90
price up icon 4.86%
$224.51
price up icon 2.79%
$66.83
price up icon 1.64%
$118.77
price up icon 0.47%
$542.08
price up icon 1.11%
Cap:     |  Volume (24h):