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PRTA

Prothena Corporation plc

Oct 04 • 04:00PM ET

16.86

Dollar change +0.06
Percentage change 0.36	%

Healthcare • Biotechnology • Ireland • NASD

Held by: IWM VXF XBI IBB VTWO IWO SCHA IWN VHT DFAS

Scroll to Statements

Index	RUT	P/E	-	EPS (ttm)	-1.01	Insider Own	13.68%	Shs Outstand	53.68M	Perf Week	-15.91%
Market Cap	906.73M	Forward P/E	-	EPS next Y	-4.27	Insider Trans	0.00%	Shs Float	46.42M	Perf Month	-18.71%
Income	-50.92M	PEG	-	EPS next Q	-1.17	Inst Own	93.48%	Short Float	12.33%	Perf Quarter	-16.45%
Sales	217.25M	P/S	4.17	EPS this Y	16.63%	Inst Trans	-6.86%	Short Ratio	12.68	Perf Half Y	-27.86%
Book/sh	10.82	P/B	1.56	EPS next Y	-85.66%	ROA	-7.45%	Short Interest	5.72M	Perf Year	-62.77%
Cash/sh	10.49	P/C	1.61	EPS next 5Y	34.07%	ROE	-8.75%	52W Range	15.52 - 55.89	Perf YTD	-53.60%
Dividend Est.	-	P/FCF	-	EPS past 5Y	6.83%	ROI	-8.61%	52W High	-69.83%	Beta	0.16
Dividend TTM	-	Quick Ratio	12.54	Sales past 5Y	4680.14%	Gross Margin	91.54%	52W Low	8.63%	ATR (14)	1.18
Dividend Ex-Date	-	Current Ratio	12.54	EPS Y/Y TTM	65.67%	Oper. Margin	-42.05%	RSI (14)	26.57	Volatility	10.50% 5.93%
Employees	173	Debt/Eq	0.02	Sales Y/Y TTM	276.98%	Profit Margin	-23.44%	Recom	1.44	Target Price	55.88
Option/Short	Yes / Yes	LT Debt/Eq	0.02	EPS Q/Q	218.24%	Payout	-	Rel Volume	1.61	Prev Close	16.80
Sales Surprise	1130.59%	EPS Surprise	215.21%	Sales Q/Q	3184.75%	Earnings	Aug 08 AMC	Avg Volume	451.33K	Price	16.86
SMA20	-16.81%	SMA50	-19.55%	SMA200	-31.80%	Trades		Volume	726,028	Change	0.36%

Date	Action	Analyst	Rating Change	Price Target Change
Jan-30-24	Downgrade	BofA Securities	Buy → Neutral	$68 → $38
Dec-12-23	Initiated	Deutsche Bank	Buy	$62
Apr-24-23	Initiated	SVB Securities	Outperform	$80
Jan-27-23	Initiated	Piper Sandler	Overweight	$94
Nov-04-22	Downgrade	RBC Capital Mkts	Outperform → Sector Perform	$52 → $55
Sep-28-22	Upgrade	BofA Securities	Neutral → Buy
Nov-19-21	Initiated	JMP Securities	Mkt Outperform	$77
Jun-18-21	Upgrade	BofA Securities	Underperform → Neutral	$12 → $49
Jun-08-21	Reiterated	Oppenheimer	Outperform	$45 → $54
May-26-21	Initiated	Citigroup	Buy	$39
Feb-26-21	Upgrade	RBC Capital Mkts	Sector Perform → Outperform	$14 → $28
Feb-12-21	Upgrade	Jefferies	Hold → Buy	$15 → $30
Feb-02-21	Upgrade	BTIG Research	Neutral → Buy	$29
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

Show Previous Ratings

Sep-27-24 04:05PM	Prothena Announces Leadership Team Updates (Business Wire) -16.56%
Aug-29-24 04:05PM	Prothena to Participate in Upcoming Healthcare Conferences (Business Wire)
Aug-19-24 12:00PM	What Makes Prothena (PRTA) a New Buy Stock (Zacks)
Aug-18-24 12:28AM	Prothena Corporation plc (PTRA): Positioning Among Top Debt-Free Stocks (Insider Monkey)
Aug-17-24 08:22AM	7 Best Debt Free Stocks To Buy (Insider Monkey)
09:16AM	Loading…
Aug-09-24 09:16AM	Prothena (PRTA) Q2 Earnings Benefit From Collaboration Revenues (Zacks)
Aug-08-24 06:40PM	Prothena (PRTA) Q2 Earnings and Revenues Beat Estimates (Zacks)
05:33PM	Prothena: Q2 Earnings Snapshot (Associated Press Finance)
04:05PM	Prothena Reports Second Quarter 2024 Financial Results and Business Highlights (Business Wire)
Aug-01-24 04:05PM	Prothena to Report Second Quarter 2024 Financial Results on August 8 (Business Wire) -5.20%
Jul-25-24 10:02AM	Prothena (PRTA) Expected to Beat Earnings Estimates: What to Know Ahead of Q2 Release (Zacks)
Jun-24-24 08:48AM	Prothena (PRTA) Moves 9.3% Higher: Will This Strength Last? (Zacks)
Jun-11-24 04:07PM	Eli Lilly Seesaws On FDA Win, And Pushes Alzheimer's Stocks Prothena, Eisai Lower (Investor's Business Daily)
12:20PM	Eli Lilly Drags Alzheimer's Stocks Prothena, Eisai Lower Despite FDA Win (Investor's Business Daily)
Jun-07-24 11:30AM	Why Is Prothena (PRTA) Down 1.5% Since Last Earnings Report? (Zacks)
10:26AM	Loading…
May-29-24 10:26AM	Prothena (PRTA), Bristol Myers Tie Up for Second Neuro Candidate (Zacks)
08:46AM	BMS stakes $80m on Prothenas neurodegenerative candidate (Pharmaceutical Technology)
May-28-24 04:05PM	Prothena Announces Bristol Myers Squibb Opt-in for Exclusive Global License for PRX019, the Second Program from Global Neuroscience Research and Development Collaboration (Business Wire)
May-09-24 11:52AM	Prothena (PRTA) Q1 Earnings Miss Estimates on Higher R&D Expenses (Zacks)
May-08-24 10:56PM	PRTA Stock Earnings: Prothena Corp Misses EPS, Misses Revenue for Q1 2024 (InvestorPlace)
06:10PM	Prothena (PRTA) Reports Q1 Loss, Lags Revenue Estimates (Zacks)
05:14PM	Prothena: Q1 Earnings Snapshot (Associated Press Finance)
04:05PM	Prothena Reports First Quarter 2024 Financial Results and Business Highlights (Business Wire)
May-01-24 04:05PM	Prothena to Report First Quarter 2024 Financial Results on May 8 (Business Wire) +5.31%
Apr-25-24 10:01AM	Earnings Preview: Prothena (PRTA) Q1 Earnings Expected to Decline (Zacks)
Apr-15-24 04:05PM	Prothena Announces Review on Birtamimab Mechanism of Action and Pharmacological Characteristics Published in Leukemia & Lymphoma (Business Wire)
Mar-28-24 08:00AM	Race To Treat Alzheimer's Disease Is Heating Up Despite Eli Lilly's Setback (Investor's Business Daily)
Mar-05-24 04:05PM	Prothena to Participate in Upcoming Healthcare Conferences (Business Wire)
Mar-04-24 04:05PM	Prothena Appoints David Ford to Newly Created Chief People Officer Position (Business Wire)
Feb-21-24 04:05PM	Prothena Announces Appointment of Daniel G. Welch as Director and Chair Designate (Business Wire)
01:33PM	Loading…
Feb-16-24 01:33PM	Prothena (PRTA) Q4 Earnings Miss Estimates on Higher R&D Expense (Zacks)
10:33AM	Prothena Corporation plc (NASDAQ:PRTA) Q4 2023 Earnings Call Transcript (Insider Monkey)
Feb-15-24 04:50PM	Prothena: Q4 Earnings Snapshot (Associated Press Finance)
04:48PM	Prothena Corp PLC (PRTA) Reports 2023 Financial Results and Provides 2024 Outlook (GuruFocus.com)
04:05PM	Prothena Reports Fourth Quarter and Full Year 2023 Financial Results, and Provides Financial Guidance and Business Highlights (Business Wire)
Feb-08-24 04:05PM	Prothena to Report Fourth Quarter and Full Year 2023 Financial Results on February 15, 2024 (Business Wire)
Jan-24-24 11:02PM	Prothena Corp PLC Chief Accounting Officer Sells 5,000 Shares (GuruFocus.com)
Jan-10-24 12:06PM	Prothena's (PRTA) Update on Pipeline Progress Disappoints (Zacks) -9.46%
05:38AM	Prothena (PRTA) Surges 12.3%: Is This an Indication of Further Gains? (Zacks)
Jan-08-24 08:30AM	Prothena Provides Updates on PRX012, PRX123, Birtamimab and Portfolio Programs (Business Wire) -13.23%
Dec-21-23 09:01AM	Prothena Corp PLC Chief Accounting Officer Sells Company Shares (GuruFocus.com)
Dec-17-23 05:41AM	These 3 Biotech Stocks Have Strong Upside Potential, Says Deutsche Bank (TipRanks)
Dec-01-23 11:05AM	Insider Sell Alert: Karin Walker of Prothena Corp PLC Cashes Out 5,000 Shares (GuruFocus.com) +7.09%
Nov-29-23 08:35AM	Stocks To Buy And Watch: Top IPOs, Big And Small Caps, Growth Stocks (Investor's Business Daily)
Nov-20-23 06:00AM	FOCUS-Researchers return to Alzheimer's vaccines, buoyed by recent drug success (Reuters)
Nov-17-23 01:35PM	Prothena (PRTA) Pipeline Shows Promise in a Tough AD Market (Zacks)
08:15AM	Quest For Alzheimer's Cure: Big Biotech Breakthroughs, But The Race Is Just Beginning (Investor's Business Daily)
Nov-03-23 11:34AM	Prothena (PRTA) Q3 Earnings Beat on Collaboration Revenue Hike (Zacks) +7.41%
Nov-02-23 07:03PM	Prothena Corp PLC (PRTA) Reports Q3 2023 Financial Results (GuruFocus.com)
06:25PM	Prothena (PRTA) Beats Q3 Earnings and Revenue Estimates (Zacks)
05:24PM	Prothena: Q3 Earnings Snapshot (Associated Press Finance)
04:05PM	Prothena Reports Third Quarter 2023 Financial Results and Business Highlights (Business Wire)
Oct-30-23 10:00AM	Analysts Estimate Axsome Therapeutics (AXSM) to Report a Decline in Earnings: What to Look Out for (Zacks)
Oct-26-23 04:09PM	Biogen Pulls Prothena Into A Steep Dive On Mixed Results For Alzheimer's Treatment (Investor's Business Daily) -14.62% +5.52%
04:05PM	Prothena to Report Third Quarter 2023 Financial Results on November 2 (Business Wire)
10:02AM	Prothena (PRTA) Expected to Beat Earnings Estimates: Can the Stock Move Higher? (Zacks)
05:02AM	Insider Sell: Karin Walker Sells 5,000 Shares of Prothena Corp PLC (GuruFocus.com)
Oct-18-23 11:20AM	5 Biotech Stocks Set to Outpace Q3 Earnings Estimates (Zacks)
Oct-17-23 07:57AM	Prothena (PRTA) Soars 18.7%: Is Further Upside Left in the Stock? (Zacks) -9.92%
Oct-16-23 11:54AM	UPDATE 1-Prothena prepares for potential sale - Bloomberg News (Reuters) +18.69%
11:42AM	Prothena preparing for a potential sale - Bloomberg News (Reuters)
Oct-12-23 05:01AM	Insider Sell: Brandon Smith Sells 4,000 Shares of Prothena Corp PLC (GuruFocus.com)
Oct-07-23 03:33PM	12 Stock Picks From Our Healthcare Roundtable Pros. Weight Loss Isnt the Only Big Deal in Medicine. (Barrons.com)
Oct-05-23 09:01AM	Insider Sell: Chief Regulatory Officer Carol Karp Sells 5,000 Shares of Prothena Corp PLC (GuruFocus.com)
Sep-28-23 05:01AM	Insider Sell: Prothena Corp PLC's Chief Legal Officer Michael Malecek Sells 5,000 Shares (GuruFocus.com)
Sep-19-23 09:01PM	Insider Sell: Karin Walker Sells 5,000 Shares of Prothena Corp PLC (GuruFocus.com)
Sep-14-23 01:32PM	Insider Sell: Chief Medical Officer Hideki Garren Sells 2,000 Shares of Prothena Corp PLC (GuruFocus.com)
Sep-07-23 12:00PM	Prothena (PRTA) Skyrockets 88.7% in 12 Months: Here's Why (Zacks)
Aug-31-23 04:05PM	Prothena to Participate in Upcoming Healthcare Conferences (Business Wire)
Aug-04-23 09:13AM	Prothena (PRTA) Q2 Earnings and Revenues Miss Estimates (Zacks) -7.30%
Aug-03-23 05:55PM	Prothena (PRTA) Reports Q2 Loss, Lags Revenue Estimates (Zacks)
04:49PM	Prothena: Q2 Earnings Snapshot (AP Finance)
04:05PM	Prothena Reports Second Quarter 2023 Financial Results and Business Highlights (Business Wire)
Aug-02-23 07:57AM	Prothena Corporation plc (NASDAQ:PRTA) Shares Could Be 36% Below Their Intrinsic Value Estimate (Simply Wall St.)
Jul-27-23 04:05PM	Prothena to Report Second Quarter 2023 Financial Results on August 3 (Business Wire)
Jul-18-23 05:36PM	The Fight Against Alzheimers Goes Beyond Plaque. Tangles Are a Target, Too. (Barrons.com)
05:36PM	The Fight Against Alzheimer Goes Beyond Plaque. Tangles Are a Target Too. (Barrons.com)
11:30AM	Lilly's (LLY) Donanemab Slows Alzheimer's Disease Progression (Zacks)
Jul-17-23 08:35AM	Prothena Presents New Research in the Treatment of Alzheimers Disease at Alzheimers Association International Conference® 2023 (AAIC®) (Business Wire)
Jul-13-23 09:22AM	Biotech Stock Roundup: BIIB, Eisai's Drug Update, NVAX Gains on Deal Amendment (Zacks)
Jul-11-23 04:05PM	Prothena to Present New Data from Alzheimers Disease Programs at Alzheimers Association International Conference® 2023 (AAIC®) (Business Wire)
08:59AM	Prothena (PRTA) Alzheimer's Disease Drug Licensed by BMY (Zacks)
Jul-10-23 04:10PM	Prothena Announces Bristol Myers Squibb Opt-in for Worldwide Rights of PRX005, a Novel Anti-MTBR-Tau Antibody (Business Wire)
Jul-07-23 09:51AM	Biogen (BIIB), Eisai Get Full FDA Nod for Leqembi in Alzheimer's (Zacks)
Jun-27-23 04:05PM	Prothena Announces Phase 3 VITAL Clinical Trial Results Published in Blood Showing Survival Benefit in Patients with Mayo Stage IV AL Amyloidosis Treated with Birtamimab (Business Wire)
Jun-12-23 09:25AM	Biogen (BIIB), Eisai Alzheimer Drug Gets FDA Panel Endorsement (Zacks) +5.05%
Jun-08-23 12:41PM	Biogen (BIIB), Eisai's Alzheimer Drug Likely to Get Full FDA Nod (Zacks)
Jun-02-23 04:05PM	Prothena to Participate in Jefferies 2023 Healthcare Conference (Business Wire)
May-16-23 04:05PM	Prothena Announces Appointment of Billy Dunn, M.D., to its Board of Directors (Business Wire)
May-10-23 06:13AM	Prothena Corporation plc (NASDAQ:PRTA) Analysts Just Trimmed Their Revenue Forecasts By 29% (Simply Wall St.)
May-05-23 12:27PM	Prothena (PRTA) Q1 Earnings and Revenues Miss Estimates (Zacks) +12.02%
May-04-23 06:45PM	Prothena (PRTA) Reports Q1 Loss, Lags Revenue Estimates (Zacks)
05:39PM	Prothena: Q1 Earnings Snapshot (AP Finance)
04:05PM	Prothena Reports First Quarter 2023 Financial Results and Business Highlights (Business Wire)
Apr-27-23 04:05PM	Prothena to Report First Quarter 2023 Financial Results on May 4 (Business Wire)
10:02AM	Analysts Estimate Prothena (PRTA) to Report a Decline in Earnings: What to Look Out for (Zacks)
Apr-24-23 04:05PM	Prothena to Participate in 2023 Bank of America Healthcare Conference (Business Wire)
Apr-18-23 02:34PM	Companies Like Prothena (NASDAQ:PRTA) Can Afford To Invest In Growth (Simply Wall St.)
Apr-14-23 07:30AM	Walgreens (WBA) Declares Partnership With Prothena Corporation (Zacks)
Apr-13-23 08:00AM	Walgreens and Prothena Partner to Increase Access and Enrollment in Alzheimers Disease Clinical Trial (Business Wire) +5.17%

Prothena Corp. Plc is a clinical-stage neuroscience company, which engages in the discovery and development of novel therapies to change the course of devastating diseases. The firm's clinical pipeline includes both wholly owned and partnered programs being developed for the potential treatment of diseases including AL amyloidosis, ATTR amyloidosis, Alzheimer's disease, Parkinson's disease and other neurodegenerative diseases. The company was founded in December 1969 and is headquartered in Dublin, Ireland.

Insider Trading	Relationship	Date	Transaction	Cost	#Shares	Value ($)	#Shares Total	SEC Form 4
Walker Karin L	Chief Accounting Officer	Jan 24 '24	Option Exercise	13.53	5,000	67,650	5,000	Jan 24 07:01 PM
Walker Karin L	Chief Accounting Officer	Jan 24 '24	Sale	34.00	5,000	170,000	0	Jan 24 07:01 PM
Walker Karin L	Chief Accounting Officer	Dec 20 '23	Option Exercise	13.53	5,000	67,650	5,000	Dec 20 07:17 PM
Walker Karin L	Chief Accounting Officer	Dec 20 '23	Sale	37.19	5,000	185,952	0	Dec 20 07:17 PM
Walker Karin L	Chief Accounting Officer	Nov 30 '23	Option Exercise	13.53	5,000	67,650	5,000	Nov 30 06:24 PM
Walker Karin L	Chief Accounting Officer	Nov 30 '23	Sale	34.00	5,000	170,000	0	Nov 30 06:24 PM
Walker Karin L	Chief Accounting Officer	Oct 25 '23	Option Exercise	13.53	5,000	67,650	5,000	Oct 25 08:03 PM
Walker Karin L	Chief Accounting Officer	Oct 25 '23	Sale	41.04	5,000	205,191	0	Oct 25 08:03 PM
Smith Brandon S.	Chief Operating Officer	Oct 11 '23	Option Exercise	11.12	4,000	44,480	4,000	Oct 11 08:25 PM
Smith Brandon S.	Chief Operating Officer	Oct 11 '23	Sale	46.75	4,000	186,985	0	Oct 11 08:25 PM

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PRTA

Prothena Corporation plc

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