PRTA Prothena Corporation plc Stock Quote

PRTA [NASD]

Index	-	P/E	-	EPS (ttm)	-2.56	Insider Own	0.05%	Shs Outstand	39.92M	Perf Week	6.01%
Market Cap	574.86M	Forward P/E	-	EPS next Y	-1.35	Insider Trans	0.00%	Shs Float	39.90M	Perf Month	0.97%
Income	-102.00M	PEG	-	EPS next Q	-0.74	Inst Own	94.90%	Short Float	1.83%	Perf Quarter	18.69%
Sales	0.70M	P/S	821.22	EPS this Y	50.50%	Inst Trans	0.17%	Short Ratio	2.74	Perf Half Y	3.82%
Book/sh	5.25	P/B	2.59	EPS next Y	51.10%	ROA	-26.30%	Target Price	19.17	Perf Year	-11.64%
Cash/sh	7.43	P/C	1.83	EPS next 5Y	-8.40%	ROE	-42.00%	52W Range	7.10 - 15.79	Perf YTD	13.16%
Dividend	-	P/FCF	-	EPS past 5Y	-46.40%	ROI	-31.50%	52W High	-13.11%	Beta	1.53
Dividend %	-	Quick Ratio	14.80	Sales past 5Y	-56.30%	Gross Margin	-	52W Low	93.24%	ATR	0.70
Employees	51	Current Ratio	14.80	Sales Q/Q	0.00%	Oper. Margin	-	RSI (14)	59.82	Volatility	5.65% 4.81%
Optionable	Yes	Debt/Eq	0.00	EPS Q/Q	-57.10%	Profit Margin	-	Rel Volume	0.33	Prev Close	13.59
Shortable	Yes	LT Debt/Eq	0.00	Earnings	Nov 04 AMC	Payout	-	Avg Volume	266.82K	Price	13.72
Recom	2.50	SMA20	5.51%	SMA50	10.69%	SMA200	16.93%	Volume	84,238	Change	0.96%

Dec-07-20

Initiated

H.C. Wainwright

Buy

$22

Jul-09-20

Upgrade

Oppenheimer

Perform → Outperform

$16

Nov-19-19

Upgrade

Evercore ISI

In-line → Outperform

$14

May-21-18

Downgrade

Barclays

Equal Weight → Underweight

$14 → $12

Apr-23-18

Downgrade

Jefferies

Buy → Hold

Apr-05-18

Reiterated

Barclays

Overweight

$70 → $50

Nov-20-17

Downgrade

Wedbush

Outperform → Neutral

$75 → $55

Sep-29-17

Reiterated

BTIG Research

Buy

$80 → $77

Sep-15-17

Initiated

RBC Capital Mkts

Outperform

$87

Aug-17-17

Initiated

Evercore ISI

Outperform

$83

Jul-11-17

Initiated

Jefferies

Buy

Apr-12-17

Initiated

Piper Jaffray

Overweight

$69

Apr-12-17

Initiated

Cantor Fitzgerald

Overweight

$86

Mar-02-17

Initiated

Instinet

Buy

$87

Dec-21-16

Initiated

SunTrust

Buy

$75

Nov-03-16

Initiated

Deutsche Bank

Buy

$73

Aug-04-16

Reiterated

Barclays

Overweight

$60 → $70

May-13-16

Initiated

Barclays

Overweight

$60

Feb-19-16

Reiterated

Wedbush

Outperform

$81 → $77

Jan-21-16

Initiated

Credit Suisse

Outperform

Dec-09-20 08:00AM	Prothena Reports Positive 9 Month Results from Phase 1 Long-term Extension Study of PRX004, the First Investigational Anti-Amyloid Immunotherapy for the Treatment of ATTR Amyloidosis GlobeNewswire
Dec-04-20 04:05PM	Prothena Announces Inducement Grant Under Nasdaq Listing Rule 5635(c)(4) GlobeNewswire
11:31AM	Why Is Prothena (PRTA) Down 19.9% Since Last Earnings Report? Zacks
Nov-27-20 12:25AM	This Just In: Analysts Are Boosting Their Prothena Corporation plc (NASDAQ:PRTA) Outlook for Next Year Simply Wall St.
Nov-16-20 02:56AM	Here's Why We're Not Too Worried About Prothena's (NASDAQ:PRTA) Cash Burn Situation Simply Wall St.
Nov-05-20 11:13AM	Prothena (PRTA) Q3 Earnings and Revenues Miss Estimates Zacks
Nov-04-20 06:35PM	Prothena (PRTA) Reports Q3 Loss, Lags Revenue Estimates Zacks +22.71%
04:05PM	Prothena Reports Third Quarter 2020 Financial Results and Provides R&D Update GlobeNewswire
08:30AM	Prothena Announces Presentations on Two Programs from its Alzheimers Disease Portfolio at CTAD 2020 GlobeNewswire
Oct-28-20 04:05PM	Prothena to Report Third Quarter 2020 Financial Results on November 4 GlobeNewswire
Oct-21-20 10:48AM	Prothena (PRTA) to Advance Parkinson's Disease Drug to Phase II Zacks +6.13%
08:04AM	The Daily Biotech Pulse: Prothena Progress In Parkinson's Disease Pipeline, Fast Track For Xeris, Biogen Earnings Benzinga
Oct-20-20 04:05PM	Roche and Prothena will Advance Prasinezumab into Late-Stage Clinical Development Study in Parkinsons Disease GlobeNewswire
Oct-02-20 04:05PM	Prothena Announces Inducement Grant Under Nasdaq Listing Rule 5635(c)(4) GlobeNewswire
Sep-29-20 02:35PM	Hedge Funds Never Been This Bullish On Prothena Corporation plc (PRTA) Insider Monkey
Sep-15-20 08:30AM	Prothena to Hold Investor Webcast to Discuss Results from Phase 2 PASADENA Study Presented at the International Parkinson and Movement Disorder Society's MDS Virtual Congress GlobeNewswire
Sep-11-20 08:30AM	Prasinezumab Slows Progression on Measures of Parkinsons Disease in Phase 2 Study GlobeNewswire
Sep-08-20 04:05PM	Prothena to Present at the 2020 Cantor Virtual Global Healthcare Conference on September 15 GlobeNewswire -7.37%
Sep-05-20 11:31AM	Prothena (PRTA) Up 2.9% Since Last Earnings Report: Can It Continue? Zacks
Sep-03-20 04:05PM	Prothena Announces Updated Timing of Presentation for Phase 2 PASADENA Study Results at International Congress of Parkinsons Disease and Movement Disorders GlobeNewswire
Sep-02-20 04:05PM	Prothena Announces Inducement Grant Under Nasdaq Listing Rule 5635(c)(4) GlobeNewswire
Aug-06-20 08:10PM	Prothena (PRTA) Reports Q2 Loss, Tops Revenue Estimates Zacks +5.09%
04:05PM	Prothena Reports Second Quarter 2020 Financial Results and Provides R&D Update GlobeNewswire
Aug-05-20 04:05PM	Prothena Announces Phase 2 PASADENA Study Results to be Presented at International Congress of Parkinsons Disease and Movement Disorders GlobeNewswire
Aug-03-20 12:09PM	Were Hedge Funds Right About Selling Prothena Corporation plc (PRTA)? Insider Monkey
Jul-30-20 04:05PM	Prothena to Report Second Quarter 2020 Financial Results on August 6 GlobeNewswire
Jul-28-20 12:33PM	Analysts Estimate Prothena (PRTA) to Report a Decline in Earnings: What to Look Out for Zacks
Jul-10-20 08:34AM	Prothena (PRTA) Looks Good: Stock Adds 10.6% in Session Zacks -5.96%
Jun-19-20 12:47PM	Hedge Funds Are Dumping Prothena Corporation plc (PRTA) Insider Monkey
May-27-20 04:05PM	Prothena to Present at the Jefferies Virtual Healthcare Conference on June 3 GlobeNewswire
May-18-20 07:26AM	Industry Analysts Just Upgraded Their Prothena Corporation plc (NASDAQ:PRTA) Revenue Forecasts By 92% Simply Wall St.
May-06-20 07:45PM	Prothena (PRTA) Reports Q1 Loss, Misses Revenue Estimates Zacks
04:05PM	Prothena Reports First Quarter 2020 Financial Results and Provides R&D Update and Updated Financial Guidance GlobeNewswire
Apr-29-20 04:05PM	Prothena to Report First Quarter 2020 Financial Results on May 6 GlobeNewswire
Apr-28-20 12:33PM	Analysts Estimate Prothena (PRTA) to Report a Decline in Earnings: What to Look Out for Zacks -8.53%
Apr-24-20 04:30PM	Prothena Provides Additional Information Regarding Upcoming Annual General Meeting of Shareholders in Response to COVID-19 GlobeNewswire
Apr-22-20 09:15AM	Update on Phase 2 PASADENA Study of Prasinezumab (PRX002/RG7935) in Parkinsons Disease GlobeNewswire
Apr-21-20 10:20AM	Should You Be Pleased About The CEO Pay At Prothena Corporation plc's (NASDAQ:PRTA) Simply Wall St.
Apr-03-20 04:05PM	Prothena Announces Inducement Grant Under Nasdaq Listing Rule 5635(c)(4) GlobeNewswire -10.08%
Mar-31-20 04:05PM	Baseline Data from Phase 2 PASADENA Study of Prasinezumab (PRX002/RG7935) in Parkinsons Disease to be Presented at AAT-AD/PD GlobeNewswire
Mar-13-20 11:30AM	Prothena (PRTA) Down 24.8% Since Last Earnings Report: Can It Rebound? Zacks
Mar-03-20 04:05PM	Prothena Announces Appointment of Brandon Smith as Chief Business Officer GlobeNewswire
Feb-17-20 06:31PM	Edited Transcript of PRTA earnings conference call or presentation 12-Feb-20 9:30pm GMT Thomson Reuters StreetEvents
Feb-13-20 10:45AM	Prothena (PRTA) Q4 Loss Narrower Than Expected, Revenues Beat Zacks
Feb-12-20 05:35PM	Prothena (PRTA) Reports Q4 Loss, Tops Revenue Estimates Zacks
04:05PM	Prothena Reports Fourth Quarter and Full Year 2019 Financial Results, and Provides Financial Guidance and R&D Update GlobeNewswire
02:30PM	Prothena Corp. Plc to Host Earnings Call ACCESSWIRE
Feb-05-20 04:05PM	Prothena to Report Fourth Quarter and Full Year 2019 Financial Results and Host Webcast Conference Call on February 12 GlobeNewswire
Jan-20-20 11:21AM	Imagine Owning Prothena (NASDAQ:PRTA) And Trying To Stomach The 71% Share Price Drop Simply Wall St.
Dec-30-19 08:35AM	Options Traders Expect Huge Moves in Prothena (PRTA) Stock Zacks
Dec-11-19 03:47PM	Did Hedge Funds Drop The Ball On Prothena Corporation plc (PRTA) ? Insider Monkey
Dec-05-19 04:05PM	Prothena Announces Appointment of Oleg Nodelman to its Board of Directors GlobeNewswire
11:31AM	Why Is Prothena (PRTA) Up 36.1% Since Last Earnings Report? Zacks
Nov-19-19 11:03AM	Prothena (NASDAQ:PRTA) Is In A Good Position To Deliver On Growth Plans Simply Wall St. +5.47%
Nov-06-19 03:14PM	Prothena (PRTA) Reports Narrower-than-Expected Loss in Q3 Zacks
Nov-05-19 06:55PM	Prothena (PRTA) Reports Q3 Loss, Tops Revenue Estimates Zacks
04:05PM	Prothena Reports Third Quarter 2019 Financial Results and Provides R&D Update GlobeNewswire
Oct-29-19 04:05PM	Prothena to Report Third Quarter 2019 Financial Results on November 5 GlobeNewswire
10:32AM	Prothena (PRTA) May Report Negative Earnings: Know the Trend Ahead of Q3 Release Zacks
Oct-15-19 01:49AM	Neil Woodfords empire implodes as he quits last two funds Financial Times +5.32%
Oct-07-19 09:00AM	Labaton Sucharow LLP and Levi & Korsinsky LLP Announce Proposed Class Action Settlement on Behalf of Purchasers of Ordinary Shares of Prothena Corporation plc in In re Prothena Corporation plc Securities Litigation, No. 1:18-cv-06425-ALC PR Newswire
Sep-20-19 01:04PM	How Should Investors React To Prothena Corporation plc's (NASDAQ:PRTA) CEO Pay? Simply Wall St.
Sep-11-19 01:39PM	4 Negative Enterprise Value Stocks GuruFocus.com
Sep-05-19 09:31AM	Why Is Prothena (PRTA) Down 8.9% Since Last Earnings Report? Zacks +5.85%
Aug-06-19 07:25PM	Prothena (PRTA) Reports Q2 Loss, Lags Revenue Estimates Zacks
04:05PM	Prothena Reports Second Quarter 2019 Financial Results and Provides R&D Update GlobeNewswire
Jul-30-19 04:05PM	Prothena to Report Second Quarter 2019 Financial Results on August 6 GlobeNewswire
10:38AM	Will Prothena (PRTA) Report Negative Q2 Earnings? What You Should Know Zacks
Jul-05-19 04:39PM	Hedge Funds Have Never Been This Bullish On Prothena Corporation plc (PRTA) Insider Monkey
Jul-03-19 03:26PM	Those Who Purchased Prothena (NASDAQ:PRTA) Shares Three Years Ago Have A 75% Loss To Show For It Simply Wall St.
Jul-01-19 04:05PM	Prothena Announces Appointment of Paula K. Cobb to its Board of Directors GlobeNewswire
Jun-06-19 09:31AM	Prothena (PRTA) Down 14.1% Since Last Earnings Report: Can It Rebound? Zacks
May-30-19 04:05PM	Prothena to Participate in the Jefferies Healthcare Conference GlobeNewswire
May-11-19 01:28PM	Heres What Hedge Funds Think About Prothena Corporation plc (PRTA) Insider Monkey
May-08-19 08:51AM	Prothena's (PRTA) Q1 Earnings Beat Estimates, Revenues Miss Zacks
May-07-19 06:55PM	Prothena (PRTA) Reports Q1 Loss, Misses Revenue Estimates Zacks
05:46PM	Prothena: 1Q Earnings Snapshot Associated Press
04:05PM	Prothena Reports First Quarter 2019 Financial Results and Provides R&D Update GlobeNewswire
Apr-30-19 04:05PM	Prothena to Report First Quarter 2019 Financial Results on May 7 GlobeNewswire
Apr-18-19 04:05PM	Prothena Reports Results from the Phase 3 VITAL Amyloidosis Study of NEOD001 (birtamimab) in AL Amyloidosis GlobeNewswire
Apr-04-19 12:12PM	INVESTOR ACTION NOTICE: The Schall Law Firm Announces it is Investigating Claims Against Prothena Corporation plc and Encourages Investors who Purchased Shares in the March 2017 Secondary Offering to Contact the Firm ACCESSWIRE
Mar-26-19 04:25PM	SHAREHOLDER ACTION ALERT: The Schall Law Firm Announces it is Investigating Claims Against Prothena Corporation plc and Encourages Investors who Purchased Shares in the March 2017 Secondary Offering to Contact the Firm ACCESSWIRE
Mar-16-19 09:30AM	Why Is Prothena (PRTA) Up 12.6% Since Last Earnings Report? Zacks
Mar-15-19 06:48PM	Prothena Corp PLC (PRTA) Files 10-K for the Fiscal Year Ended on December 31, 2018 GuruFocus.com
04:15PM	IMPORTANT INVESTOR ALERT: The Schall Law Firm Announces it is Investigating Claims Against Prothena Corporation plc and Encourages Investors who Purchased Shares in the March 2017 Secondary Offering to Contact the Firm ACCESSWIRE
Mar-14-19 05:15PM	INVESTIGATION REMINDER: The Schall Law Firm Announces it is Investigating Claims Against Prothena Corporation plc and Encourages Investors who Purchased Shares in the March 2017 Secondary Offering to Contact the Firm GlobeNewswire
09:02AM	INVESTIGATION ALERT: The Schall Law Firm Announces it is Investigating Claims Against Prothena Corporation plc and Encourages Investors who Purchased Shares in the March 2017 Secondary Offering to Contact the Firm Business Wire
Mar-12-19 11:11AM	Prothena Corporation plc (NASDAQ:PRTA): Will The Growth Last? Simply Wall St.
Mar-05-19 04:05PM	Prothena to Participate in Upcoming March Healthcare Conferences GlobeNewswire
Mar-01-19 06:29AM	Edited Transcript of PRTA earnings conference call or presentation 14-Feb-19 9:30pm GMT Thomson Reuters StreetEvents
Feb-15-19 02:03PM	Prothena's (PRTA) Q4 Earnings Beat, Revenues Miss Estimates Zacks
Feb-14-19 05:50PM	Prothena (PRTA) Reports Q4 Loss, Misses Revenue Estimates Zacks
04:58PM	Prothena: 4Q Earnings Snapshot Associated Press
04:05PM	Prothena Reports Fourth Quarter and Full Year 2018 Financial Results, and Provides Financial Guidance and R&D Update GlobeNewswire
07:50AM	The Daily Biotech Pulse: Vanda Q4 Results, Inovio Debt Offering, Caladrius Diabetes Drug Flunks Mid-Stage Trial Benzinga
Feb-07-19 10:31AM	Will Prothena (PRTA) Report Negative Earnings Next Week? What You Should Know Zacks
Feb-04-19 04:05PM	Prothena to Report Fourth Quarter and Full Year 2018 Financial Results and Host Webcast Conference Call on February 14 GlobeNewswire
Jan-30-19 08:15AM	Report: Developing Opportunities within Hyatt Hotels, Carter's, Globus Medical, Switch, Prothena Corporation plc, and Assurant Future Expectations, Projections Moving into 2019 GlobeNewswire
Dec-20-18 06:04AM	Should You Buy Prothena Corporation plc (PRTA)? Insider Monkey
Dec-10-18 08:38AM	Implied Volatility Surging for Prothena (PRTA) Stock Options Zacks

Prothena Corporation plc, a clinical-stage neuroscience company, focuses on discovery and development of novel therapies for life-threatening diseases in the United States. The company is involved in developing PRX002/RG7935 that is in Phase II clinical trial for treating Parkinson's disease and other related synucleinopathies; and PRX004, an antibody that is in Phase I clinical trial for the treatment of ATTR amyloidosis. Its discovery-stage programs include Tau for treating Alzheimer's disease, progressive supranuclear palsy, frontotemporal dementia, chronic traumatic encephalopathy, and other tauopathies; A, or Amyloid Beta, a protein for the treatment of Alzheimer's disease; TDP-43 for amyotrophic lateral sclerosis and frontotemporal dementia; and other products for neurodegeneration. The company has a license, development, and commercialization agreement with F. Hoffmann-La Roche Ltd and Hoffmann-La Roche Inc. to develop and commercialize antibodies that target alpha-synuclein; and a collaboration agreement with Bristol-Myers Squibb to develop antibodies. Prothena Corporation plc was founded in 2012 and is based in Dublin, Ireland.

Insider Trading	Relationship	Date	Transaction	Cost	#Shares	Value ($)	#Shares Total	SEC Form 4
Kinney Gene G.	President and CEO	Aug 17	Option Exercise	6.41	10,000	64,100	12,793	Aug 19 04:31 PM

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