Compare Stocks

Comparative Price Performance Over Time

Compare Stocks - Price & Volume

CompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's Volume
Amphastar Pharmaceuticals, Inc. stock logo
AMPH
Amphastar Pharmaceuticals
$40.83
-0.4%
$44.79
$35.62
$67.66
$2.00B0.84453,188 shs236,143 shs
ESSA Pharma Inc. stock logo
EPIX
ESSA Pharma
$6.12
-2.1%
$8.32
$2.56
$11.67
$270.75M1.62135,637 shs64,765 shs
G1 Therapeutics, Inc. stock logo
GTHX
G1 Therapeutics
$3.86
-3.3%
$3.72
$1.08
$5.00
$201.61M1.731.29 million shs538,421 shs
Karyopharm Therapeutics Inc. stock logo
KPTI
Karyopharm Therapeutics
$1.06
-2.8%
$1.33
$0.62
$3.87
$123.46M0.031.64 million shs644,533 shs
Prothena Co. plc stock logo
PRTA
Prothena
$20.56
$25.52
$19.65
$79.65
$1.10B0.21753,078 shs496,352 shs
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Price Performance

Company1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year Performance
Amphastar Pharmaceuticals, Inc. stock logo
AMPH
Amphastar Pharmaceuticals
+0.22%+2.37%-6.03%-22.99%+4.38%
ESSA Pharma Inc. stock logo
EPIX
ESSA Pharma
-2.34%-11.60%-30.86%-8.09%+133.21%
G1 Therapeutics, Inc. stock logo
GTHX
G1 Therapeutics
-4.77%-6.78%-3.62%+3.91%+62.20%
Karyopharm Therapeutics Inc. stock logo
KPTI
Karyopharm Therapeutics
0.00%-21.01%-21.58%+24.47%-70.93%
Prothena Co. plc stock logo
PRTA
Prothena
0.00%-2.10%-19.06%-35.87%-62.09%

MarketRank™

CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & Valuation
Amphastar Pharmaceuticals, Inc. stock logo
AMPH
Amphastar Pharmaceuticals
4.8368 of 5 stars
3.31.00.03.72.84.23.8
ESSA Pharma Inc. stock logo
EPIX
ESSA Pharma
1.6855 of 5 stars
3.53.00.00.00.03.30.0
G1 Therapeutics, Inc. stock logo
GTHX
G1 Therapeutics
4.2411 of 5 stars
3.35.00.03.83.00.80.6
Karyopharm Therapeutics Inc. stock logo
KPTI
Karyopharm Therapeutics
3.5402 of 5 stars
3.30.00.04.61.72.50.6
Prothena Co. plc stock logo
PRTA
Prothena
2.504 of 5 stars
4.40.00.00.01.43.30.6

Analyst Ratings

CompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current Price
Amphastar Pharmaceuticals, Inc. stock logo
AMPH
Amphastar Pharmaceuticals
2.50
Moderate Buy$66.0061.65% Upside
ESSA Pharma Inc. stock logo
EPIX
ESSA Pharma
3.00
Buy$16.50169.61% Upside
G1 Therapeutics, Inc. stock logo
GTHX
G1 Therapeutics
2.50
Moderate Buy$9.33141.80% Upside
Karyopharm Therapeutics Inc. stock logo
KPTI
Karyopharm Therapeutics
2.60
Moderate Buy$5.67434.59% Upside
Prothena Co. plc stock logo
PRTA
Prothena
2.71
Moderate Buy$68.14231.43% Upside

Current Analyst Ratings

Latest GTHX, PRTA, EPIX, KPTI, and AMPH Analyst Ratings

DateCompanyBrokerageActionRatingPrice TargetDetails
4/12/2024
G1 Therapeutics, Inc. stock logo
GTHX
G1 Therapeutics
Needham & Company LLC
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingBuy ➝ Buy$12.00
4/10/2024
Amphastar Pharmaceuticals, Inc. stock logo
AMPH
Amphastar Pharmaceuticals
Needham & Company LLC
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingHold
4/10/2024
Prothena Co. plc stock logo
PRTA
Prothena
Cantor Fitzgerald
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingOverweight
3/13/2024
Prothena Co. plc stock logo
PRTA
Prothena
HC Wainwright
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingBuy ➝ Buy$90.00
3/5/2024
Amphastar Pharmaceuticals, Inc. stock logo
AMPH
Amphastar Pharmaceuticals
JPMorgan Chase & Co.
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Initiated CoverageOverweight$60.00
3/1/2024
Karyopharm Therapeutics Inc. stock logo
KPTI
Karyopharm Therapeutics
HC Wainwright
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Lower Price TargetBuy ➝ Buy$10.00 ➝ $8.00
2/28/2024
G1 Therapeutics, Inc. stock logo
GTHX
G1 Therapeutics
Wedbush
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingOutperform$4.00 ➝ $5.00
2/28/2024
G1 Therapeutics, Inc. stock logo
GTHX
G1 Therapeutics
Needham & Company LLC
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingBuy ➝ Buy$12.00
2/20/2024
Prothena Co. plc stock logo
PRTA
Prothena
Oppenheimer
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Lower Price TargetOutperform ➝ Outperform$98.00 ➝ $80.00
2/16/2024
Prothena Co. plc stock logo
PRTA
Prothena
JMP Securities
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Boost Price TargetMarket Outperform ➝ Market Outperform$81.00 ➝ $85.00
2/16/2024
Prothena Co. plc stock logo
PRTA
Prothena
Royal Bank of Canada
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Lower Price TargetSector Perform ➝ Sector Perform$36.00 ➝ $35.00
(Data available from 4/25/2021 forward. View 10+ years of historical ratings with our analyst ratings screener.)

Sales & Book Value

CompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/Book
Amphastar Pharmaceuticals, Inc. stock logo
AMPH
Amphastar Pharmaceuticals
$644.40M3.10$4.36 per share9.37$13.35 per share3.06
ESSA Pharma Inc. stock logo
EPIX
ESSA Pharma
N/AN/AN/AN/A$3.30 per shareN/A
G1 Therapeutics, Inc. stock logo
GTHX
G1 Therapeutics
$82.51M2.44N/AN/A$0.68 per share5.68
Karyopharm Therapeutics Inc. stock logo
KPTI
Karyopharm Therapeutics
$146.03M0.85N/AN/A($1.19) per share-0.89
Prothena Co. plc stock logo
PRTA
Prothena
$91.37M12.09N/AN/A$10.46 per share1.97

Profitability & Earnings

CompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings Date
Amphastar Pharmaceuticals, Inc. stock logo
AMPH
Amphastar Pharmaceuticals
$137.54M$2.5815.839.930.9721.34%26.95%12.27%5/14/2024 (Estimated)
ESSA Pharma Inc. stock logo
EPIX
ESSA Pharma
-$26.58M-$0.59N/AN/AN/AN/A-17.41%-17.04%5/14/2024 (Estimated)
G1 Therapeutics, Inc. stock logo
GTHX
G1 Therapeutics
-$47.97M-$0.95N/AN/AN/A-58.13%-106.04%-33.99%5/1/2024 (Confirmed)
Karyopharm Therapeutics Inc. stock logo
KPTI
Karyopharm Therapeutics
-$143.10M-$1.25N/AN/AN/A-97.99%N/A-50.47%5/2/2024 (Estimated)
Prothena Co. plc stock logo
PRTA
Prothena
-$147.03M-$2.80N/AN/AN/A-160.91%-24.84%-20.24%5/2/2024 (Estimated)

Latest GTHX, PRTA, EPIX, KPTI, and AMPH Earnings

DateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails
5/1/2024N/A
G1 Therapeutics, Inc. stock logo
GTHX
G1 Therapeutics
-$0.19N/A+$0.19N/AN/AN/A  
2/29/202412/31/2023
Karyopharm Therapeutics Inc. stock logo
KPTI
Karyopharm Therapeutics
-$0.29-$0.36-$0.07-$0.36$33.50 million$33.75 million    
2/28/2024Q4 2023
Amphastar Pharmaceuticals, Inc. stock logo
AMPH
Amphastar Pharmaceuticals
$0.84$0.81-$0.03$0.94$174.90 million$178.11 million
2/28/202412/31/2023
G1 Therapeutics, Inc. stock logo
GTHX
G1 Therapeutics
-$0.27-$0.21+$0.06-$0.21$12.83 million$14.87 million    
2/15/2024Q4 2023
Prothena Co. plc stock logo
PRTA
Prothena
-$1.23-$1.26-$0.03-$1.26$2.15 million$0.32 million    
2/13/202412/31/2023
ESSA Pharma Inc. stock logo
EPIX
ESSA Pharma
-$0.17-$0.14+$0.03-$0.14N/AN/A

Dividends

CompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive Growth
Amphastar Pharmaceuticals, Inc. stock logo
AMPH
Amphastar Pharmaceuticals
N/AN/AN/AN/AN/A
ESSA Pharma Inc. stock logo
EPIX
ESSA Pharma
N/AN/AN/AN/AN/A
G1 Therapeutics, Inc. stock logo
GTHX
G1 Therapeutics
N/AN/AN/AN/AN/A
Karyopharm Therapeutics Inc. stock logo
KPTI
Karyopharm Therapeutics
N/AN/AN/AN/AN/A
Prothena Co. plc stock logo
PRTA
Prothena
N/AN/AN/AN/AN/A

Debt

CompanyDebt-to-Equity RatioCurrent RatioQuick Ratio
Amphastar Pharmaceuticals, Inc. stock logo
AMPH
Amphastar Pharmaceuticals
0.92
2.17
1.70
ESSA Pharma Inc. stock logo
EPIX
ESSA Pharma
N/A
40.74
40.74
G1 Therapeutics, Inc. stock logo
GTHX
G1 Therapeutics
1.46
3.87
3.45
Karyopharm Therapeutics Inc. stock logo
KPTI
Karyopharm Therapeutics
N/A
3.37
3.32
Prothena Co. plc stock logo
PRTA
Prothena
N/A
11.24
11.24

Ownership

Institutional Ownership

CompanyInstitutional Ownership
Amphastar Pharmaceuticals, Inc. stock logo
AMPH
Amphastar Pharmaceuticals
65.09%
ESSA Pharma Inc. stock logo
EPIX
ESSA Pharma
75.12%
G1 Therapeutics, Inc. stock logo
GTHX
G1 Therapeutics
24.21%
Karyopharm Therapeutics Inc. stock logo
KPTI
Karyopharm Therapeutics
66.44%
Prothena Co. plc stock logo
PRTA
Prothena
97.08%

Insider Ownership

CompanyInsider Ownership
Amphastar Pharmaceuticals, Inc. stock logo
AMPH
Amphastar Pharmaceuticals
27.10%
ESSA Pharma Inc. stock logo
EPIX
ESSA Pharma
14.70%
G1 Therapeutics, Inc. stock logo
GTHX
G1 Therapeutics
8.23%
Karyopharm Therapeutics Inc. stock logo
KPTI
Karyopharm Therapeutics
3.32%
Prothena Co. plc stock logo
PRTA
Prothena
28.20%

Miscellaneous

CompanyEmployeesShares OutstandingFree FloatOptionable
Amphastar Pharmaceuticals, Inc. stock logo
AMPH
Amphastar Pharmaceuticals
1,76148.87 million35.62 millionOptionable
ESSA Pharma Inc. stock logo
EPIX
ESSA Pharma
5044.24 million37.74 millionOptionable
G1 Therapeutics, Inc. stock logo
GTHX
G1 Therapeutics
10052.23 million47.94 millionOptionable
Karyopharm Therapeutics Inc. stock logo
KPTI
Karyopharm Therapeutics
325116.47 million112.60 millionOptionable
Prothena Co. plc stock logo
PRTA
Prothena
17353.72 million38.57 millionOptionable

GTHX, PRTA, EPIX, KPTI, and AMPH Headlines

SourceHeadline
Earnings Preview: Prothena (PRTA) Q1 Earnings Expected to DeclineEarnings Preview: Prothena (PRTA) Q1 Earnings Expected to Decline
zacks.com - April 25 at 11:08 AM
Prothena (NASDAQ:PRTA) Reaches New 1-Year Low at $20.32Prothena (NASDAQ:PRTA) Reaches New 1-Year Low at $20.32
marketbeat.com - April 24 at 1:57 PM
Zacks Research Brokers Increase Earnings Estimates for Prothena Co. plc (NASDAQ:PRTA)Zacks Research Brokers Increase Earnings Estimates for Prothena Co. plc (NASDAQ:PRTA)
americanbankingnews.com - April 18 at 5:46 AM
Prothena (NASDAQ:PRTA) Hits New 12-Month Low at $21.31Prothena (NASDAQ:PRTA) Hits New 12-Month Low at $21.31
americanbankingnews.com - April 18 at 4:50 AM
Prothena reports potential AL amyloidosis treatmentProthena reports potential AL amyloidosis treatment
investing.com - April 17 at 1:23 AM
Prothena (NASDAQ:PRTA) Reaches New 1-Year Low at $21.31Prothena (NASDAQ:PRTA) Reaches New 1-Year Low at $21.31
marketbeat.com - April 16 at 11:02 AM
Financial Comparison: Prothena (NASDAQ:PRTA) and China Health Industries (OTCMKTS:CHHE)Financial Comparison: Prothena (NASDAQ:PRTA) and China Health Industries (OTCMKTS:CHHE)
americanbankingnews.com - April 16 at 2:40 AM
Prothena Announces Review on Birtamimab Mechanism of Action and Pharmacological Characteristics Published in Leukemia & LymphomaProthena Announces Review on Birtamimab Mechanism of Action and Pharmacological Characteristics Published in Leukemia & Lymphoma
businesswire.com - April 15 at 4:05 PM
Leerink Partnrs Weighs in on Prothena Co. plcs Q1 2024 Earnings (NASDAQ:PRTA)Leerink Partnrs Weighs in on Prothena Co. plc's Q1 2024 Earnings (NASDAQ:PRTA)
marketbeat.com - April 12 at 6:08 AM
Prothena (NASDAQ:PRTA) Trading Up 3.7%Prothena (NASDAQ:PRTA) Trading Up 3.7%
marketbeat.com - April 11 at 2:49 PM
Prothena (NASDAQ:PRTA) Stock Rating Reaffirmed by Cantor FitzgeraldProthena (NASDAQ:PRTA) Stock Rating Reaffirmed by Cantor Fitzgerald
marketbeat.com - April 10 at 2:17 PM
Prothena (NASDAQ:PRTA) Hits New 12-Month Low at $21.91Prothena (NASDAQ:PRTA) Hits New 12-Month Low at $21.91
marketbeat.com - April 10 at 10:44 AM
Prothena (NASDAQ:PRTA) Stock Price Down 3%Prothena (NASDAQ:PRTA) Stock Price Down 3%
marketbeat.com - April 4 at 5:28 PM
Prothena (NASDAQ:PRTA) Sets New 12-Month Low at $23.41Prothena (NASDAQ:PRTA) Sets New 12-Month Low at $23.41
marketbeat.com - April 3 at 12:47 PM
Prothena (NASDAQ:PRTA) Shares Gap Down to $26.15Prothena (NASDAQ:PRTA) Shares Gap Down to $26.15
marketbeat.com - April 2 at 11:19 AM
Prothena Co. plc (NASDAQ:PRTA) Given Average Rating of "Moderate Buy" by BrokeragesProthena Co. plc (NASDAQ:PRTA) Given Average Rating of "Moderate Buy" by Brokerages
marketbeat.com - April 1 at 4:15 AM
Prothena (NASDAQ:PRTA) Trading Down 2.3%Prothena (NASDAQ:PRTA) Trading Down 2.3%
marketbeat.com - March 28 at 4:33 PM
Prothena Co. plc (NASDAQ:PRTA) Shares Purchased by SG Americas Securities LLCProthena Co. plc (NASDAQ:PRTA) Shares Purchased by SG Americas Securities LLC
marketbeat.com - March 25 at 5:41 AM
Demystifying Prothena Corp: Insights From 8 Analyst ReviewsDemystifying Prothena Corp: Insights From 8 Analyst Reviews
markets.businessinsider.com - March 13 at 3:52 PM
Piper Sandler Reaffirms Their Buy Rating on Prothena (PRTA)Piper Sandler Reaffirms Their Buy Rating on Prothena (PRTA)
markets.businessinsider.com - March 7 at 6:13 PM
Prothena to Participate in Upcoming Healthcare ConferencesProthena to Participate in Upcoming Healthcare Conferences
businesswire.com - March 5 at 4:05 PM
Prothena Appoints David Ford to Newly Created Chief People Officer PositionProthena Appoints David Ford to Newly Created Chief People Officer Position
finance.yahoo.com - March 4 at 8:23 PM
Prothena Corporation plc (PRTA)Prothena Corporation plc (PRTA)
finance.yahoo.com - March 1 at 2:50 PM
Prothena: Alzheimers Data Update In 2024 Could Move The NeedleProthena: Alzheimer's Data Update In 2024 Could Move The Needle
seekingalpha.com - February 23 at 12:31 PM

New MarketBeat Followers Over Time

Media Sentiment Over Time

Company Descriptions

Amphastar Pharmaceuticals logo

Amphastar Pharmaceuticals

NASDAQ:AMPH
Amphastar Pharmaceuticals, Inc., a bio-pharmaceutical company, develops, manufactures, markets, and sells generic and proprietary injectable, inhalation, and intranasal products in the United States, China, and France. It offers BAQSIMI, a nasal spray for the treatment of severe hypoglycemia; Primatene Mist, an over-the-counter epinephrine inhalation product for the temporary relief of mild symptoms of intermittent asthma; Enoxaparin, to prevent and treat deep vein thrombosis; REXTOVY and Naloxone for opioid overdose; Glucagon for injection emergency kit; and Cortrosyn, for use as a diagnostic agent in the screening of patients with adrenocortical insufficiency. The company provides Amphadase, an injection to absorb and disperse other injected drugs; Epinephrine injection for allergic reactions; Lidocaine jelly, an anesthetic product for urological procedures; Lidocaine topical solution for various procedures; Phytonadione injection, a vitamin K1 injection for newborn babies; emergency syringe products; morphine injection for use with patient-controlled analgesia pumps; and Lorazepam injection for surgery and medical procedures. In addition, it offers Neostigmine methylsulfate injection to treat myasthenia gravis and to reverse the effects of muscle relaxants; Isoproterenol hydrochloride injection for mild or transient episodes of heart block; Ganirelix Acetate injection for the inhibition of premature luteinizing hormone surges; Vasopressin to increase blood pressure; and Regadenoson, a stress agent for radionuclide myocardial perfusion imaging. Further, the company distributes recombinant human insulin APIs and porcine insulin API. Additionally, it develops generic product candidates, such as injectable, inhalation, and analytical technologies; biosimial product candidates; and intranasal epinephrine for the treatment of allergic reactions. The company was founded in 1996 and is headquartered in Rancho Cucamonga, California.
ESSA Pharma logo

ESSA Pharma

NASDAQ:EPIX
ESSA Pharma Inc., a clinical stage pharmaceutical company, focuses the development of small molecule drugs for the treatment of prostate cancer. The company's lead candidate EPI-7386, an androgen receptor based resistance mechanisms that develop in patients with castration-resistant prostate cancer and metastatic castration-resistant prostate cancer. It has collaboration agreements with Bayer Consumer Care AG; Janssen Research & Development, LLC; and Astellas Pharma Inc. ESSA Pharma Inc. was incorporated in 2009 and is headquartered in Vancouver, Canada.
G1 Therapeutics logo

G1 Therapeutics

NASDAQ:GTHX
G1 Therapeutics, Inc., a commercial-stage biopharmaceutical company, engages in the discovery, development, and commercialization of small molecule therapeutics for the treatment of patients with cancer in the United States. The company offers COSELA, which helps to decrease incidence of chemotherapy-induced myelosuppression in adult patients treated with a platinum/etoposide-containing regimen or topotecan-containing regimen for extensive stage small cell lung cancer. It is also developing Trilaciclib that is in Phase 3 clinical trial for 1L metastatic triple negative breast cancer (mTNBC); and Phase 2 clinical trial as an antibody-drug conjugate combination trial in mTNBC, as well as completed Phase 2 clinical trial for Neoadjuvant TNBC and 1L Bladder cancer. The company has a license agreement with Genor Biopharma Co. Inc. for the development and commercialization of lerociclib using an oral dosage form to treat various indication in humans; Incyclix for the development and commercialization of a CDK2 inhibitor for all human and veterinary uses; and Simcere Pharmaceutical Co., Ltd for the development and commercialization of trilaciclib in all indications. G1 Therapeutics, Inc. was incorporated in 2008 and is headquartered in Research Triangle Park, North Carolina.
Karyopharm Therapeutics logo

Karyopharm Therapeutics

NASDAQ:KPTI
Karyopharm Therapeutics Inc., a commercial-stage pharmaceutical company, discovers, develops, and commercializes drugs directed against nuclear export for the treatment of cancer and other diseases in the United States. The company discovers, develops, and commercializes novel and small molecule Selective Inhibitor of Nuclear Export (SINE) compounds that inhibit the nuclear export protein exportin 1 (XPO1). Its lead compound, include XPOVIO in combination with bortezomib and dexamethasone for the treatment of adult patients with multiple myeloma; in combination with dexamethasone for the treatment of adult patients with relapsed or refractory multiple myeloma; and for the treatment of adult patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL). It also developing Selinexor for treating hematological and solid tumor malignancies, including multiple myeloma, endometrial cancer, myelofibrosis, and DLBCL; and ELTANEXOR for treating Myelodysplastic Neoplasms, as well as verdinexor, KPT-9274, and IL-12 compounds. The company has license agreement with Menarini Group to develop and commercialize selinexor for human oncology indications; license agreement with Antengene Therapeutics Limited to develop and commercialize selinexor, eltanexor, and KPT-9274 for the treatment and/or prevention of human oncology indications, as well as verdinexor for the diagnosis, treatment, and/or prevention of human non-oncology indications; and distribution agreement for the commercialization of XPOVIO with FORUS Therapeutics Inc. Further, it has a collaboration with Bristol Myers Squibb company to evaluate novel cereblon E3 ligase modulator agent mezigdomide in combination with Selinexor in patients with relapsed/refractory multiple myeloma. Karyopharm Therapeutics Inc. was incorporated in 2008 and is headquartered in Newton, Massachusetts.
Prothena logo

Prothena

NASDAQ:PRTA
Prothena Corporation plc, a late-stage clinical biotechnology company, focuses on discovery and development of novel therapies to treat diseases caused by protein dysregulation in the United States. The company is involved in developing birtamimab, an investigational humanized antibody that is in Phase III clinical trial for the treatment of AL amyloidosis; Prasinezumab, a humanized monoclonal antibody, for the treatment of Parkinson's disease and other related synucleinopathies which is in Phase IIb clinical trial; NNC6019 that is in Phase lI clinical trial for the treatment of ATTR amyloidosis; and BMS-986446 and PRX012, which is in Phase I clinical trial for the treatment of Alzheimer's disease. Its discovery and preclinical programs include PRX123, a dual Aß-Tau vaccine for the treatment and prevention of Alzheimer's disease; and PRX019 for the treatment of neurogenerative diseases, as well as TDP-43 for the treatment of amyotrophic lateral sclerosis. Prothena Corporation plc 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 a-synuclein, including prasinezumab; and a collaboration agreement with Bristol-Myers Squibb to develop and commercialize antibodies targeting tau, TDP-43. The company was incorporated in 2012 and is based in Dublin, Ireland.