Compare Stocks

Comparative Price Performance Over Time

Compare Stocks - Price & Volume

CompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's Volume
Alkermes plc stock logo
ALKS
Alkermes
$24.41
-0.1%
$27.45
$22.01
$33.71
$4.13B0.551.87 million shs37,908 shs
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
$49.69
+3.7%
$58.21
$19.83
$94.75
$5.99B0.881.46 million shs149,546 shs
Arena Pharmaceuticals, Inc. stock logo
ARNA
Arena Pharmaceuticals
$99.99
$97.65
$45.50
$100.00
$6.17B0.551.56 million shs107 shs
HUTCHMED (China) Limited stock logo
HCM
HUTCHMED
$18.26
-3.8%
$16.43
$10.68
$20.73
$3.18B0.81121,061 shs31,704 shs
Nektar Therapeutics stock logo
NKTR
Nektar Therapeutics
$1.36
+2.7%
$1.01
$0.41
$1.75
$248.81M0.92.12 million shs43,192 shs
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Price Performance

Company1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year Performance
Alkermes plc stock logo
ALKS
Alkermes
-0.85%+2.86%-8.74%-11.90%-13.88%
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
-4.01%+0.88%-18.76%-25.16%-43.40%
Arena Pharmaceuticals, Inc. stock logo
ARNA
Arena Pharmaceuticals
0.00%0.00%0.00%0.00%0.00%
HUTCHMED (China) Limited stock logo
HCM
HUTCHMED
+3.15%+16.08%+14.05%+44.52%+27.62%
Nektar Therapeutics stock logo
NKTR
Nektar Therapeutics
-4.35%0.00%+46.67%+159.33%+64.88%

MarketRank™

CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & Valuation
Alkermes plc stock logo
ALKS
Alkermes
4.8314 of 5 stars
4.33.00.04.21.32.52.5
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
4.4933 of 5 stars
4.41.00.04.43.12.50.6
Arena Pharmaceuticals, Inc. stock logo
ARNA
Arena Pharmaceuticals
N/AN/AN/AN/AN/AN/AN/AN/A
HUTCHMED (China) Limited stock logo
HCM
HUTCHMED
2.0153 of 5 stars
3.43.00.00.03.40.00.6
Nektar Therapeutics stock logo
NKTR
Nektar Therapeutics
3.7383 of 5 stars
3.03.00.04.21.02.50.6

Analyst Ratings

CompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current Price
Alkermes plc stock logo
ALKS
Alkermes
2.50
Moderate Buy$35.3844.92% Upside
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
2.87
Moderate Buy$77.9356.84% Upside
Arena Pharmaceuticals, Inc. stock logo
ARNA
Arena Pharmaceuticals
N/AN/AN/AN/A
HUTCHMED (China) Limited stock logo
HCM
HUTCHMED
2.75
Moderate Buy$29.7062.65% Upside
Nektar Therapeutics stock logo
NKTR
Nektar Therapeutics
2.00
Hold$3.50158.30% Upside

Current Analyst Ratings

Latest APLS, ARNA, ALKS, HCM, and NKTR Analyst Ratings

DateCompanyBrokerageActionRatingPrice TargetDetails
4/25/2024
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
Needham & Company LLC
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingBuy ➝ Buy$85.00
4/19/2024
Alkermes plc stock logo
ALKS
Alkermes
HC Wainwright
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingNeutral ➝ Neutral$35.00
4/17/2024
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
Wedbush
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Lower Price TargetNeutral ➝ Neutral$67.00 ➝ $57.00
4/15/2024
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
HC Wainwright
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingBuy ➝ Buy$92.00
4/9/2024
Alkermes plc stock logo
ALKS
Alkermes
Jefferies Financial Group
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Boost Price TargetBuy ➝ Buy$42.00 ➝ $50.00
4/9/2024
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
Needham & Company LLC
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingBuy ➝ Buy$85.00
4/1/2024
Alkermes plc stock logo
ALKS
Alkermes
Piper Sandler
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingOverweight ➝ Overweight$39.00
3/27/2024
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
Mizuho
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingNeutral ➝ Neutral$60.00
3/19/2024
Alkermes plc stock logo
ALKS
Alkermes
Robert W. Baird
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Initiated CoverageOutperform$37.00
3/6/2024
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
JPMorgan Chase & Co.
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Boost Price TargetOverweight ➝ Overweight$78.00 ➝ $79.00
3/6/2024
Nektar Therapeutics stock logo
NKTR
Nektar Therapeutics
Jefferies Financial Group
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Boost Price TargetHold ➝ Hold$0.50 ➝ $1.00
(Data available from 4/26/2021 forward. View 10+ years of historical ratings with our analyst ratings screener.)

Sales & Book Value

CompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/Book
Alkermes plc stock logo
ALKS
Alkermes
$1.66B2.48$2.25 per share10.86$7.21 per share3.39
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
$396.59M15.11N/AN/A$1.64 per share30.30
Arena Pharmaceuticals, Inc. stock logo
ARNA
Arena Pharmaceuticals
$50K123,305.67N/AN/A$10.94 per share9.14
HUTCHMED (China) Limited stock logo
HCM
HUTCHMED
$838M3.80$0.62 per share29.43$4.27 per share4.28
Nektar Therapeutics stock logo
NKTR
Nektar Therapeutics
$90.12M2.76N/AN/A$0.69 per share1.96

Profitability & Earnings

CompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings Date
Alkermes plc stock logo
ALKS
Alkermes
$355.76M$2.0711.7912.140.6821.39%16.10%9.15%5/1/2024 (Confirmed)
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
-$528.63M-$4.48N/A46.01N/A-133.34%-178.60%-60.41%5/7/2024 (Confirmed)
Arena Pharmaceuticals, Inc. stock logo
ARNA
Arena Pharmaceuticals
-$616.43M-$10.13N/AN/AN/AN/A-69.83%-62.35%N/A
HUTCHMED (China) Limited stock logo
HCM
HUTCHMED
$100.78MN/A0.0038.04N/AN/AN/AN/A5/22/2024 (Estimated)
Nektar Therapeutics stock logo
NKTR
Nektar Therapeutics
-$276.06M-$1.46N/AN/AN/A-306.31%-96.80%-37.17%5/14/2024 (Estimated)

Latest APLS, ARNA, ALKS, HCM, and NKTR Earnings

DateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails
5/7/2024N/A
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
-$0.55N/A+$0.55N/AN/AN/A  
5/1/2024N/A
Alkermes plc stock logo
ALKS
Alkermes
$0.6130N/A-$0.6130N/AN/AN/A  
3/4/202412/31/2023
Nektar Therapeutics stock logo
NKTR
Nektar Therapeutics
-$0.21-$0.22-$0.01-$0.22$17.09 million$23.89 million    
2/27/202412/31/2023
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
-$0.73-$0.73N/A-$0.73$143.34 million$146.38 million    
2/15/2024Q4 23
Alkermes plc stock logo
ALKS
Alkermes
$0.51$0.22-$0.29$0.02$362.78 million$377.50 million    

Dividends

CompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive Growth
Alkermes plc stock logo
ALKS
Alkermes
N/AN/AN/AN/AN/A
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
N/AN/AN/AN/AN/A
Arena Pharmaceuticals, Inc. stock logo
ARNA
Arena Pharmaceuticals
N/AN/AN/AN/AN/A
HUTCHMED (China) Limited stock logo
HCM
HUTCHMED
N/AN/AN/AN/AN/A
Nektar Therapeutics stock logo
NKTR
Nektar Therapeutics
N/AN/AN/AN/AN/A

Debt

CompanyDebt-to-Equity RatioCurrent RatioQuick Ratio
Alkermes plc stock logo
ALKS
Alkermes
0.24
2.86
2.50
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
0.48
3.10
2.50
Arena Pharmaceuticals, Inc. stock logo
ARNA
Arena Pharmaceuticals
0.05
8.59
8.59
HUTCHMED (China) Limited stock logo
HCM
HUTCHMED
0.06
2.72
2.60
Nektar Therapeutics stock logo
NKTR
Nektar Therapeutics
N/A
6.45
6.14

Ownership

Institutional Ownership

CompanyInstitutional Ownership
Alkermes plc stock logo
ALKS
Alkermes
95.21%
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
96.29%
Arena Pharmaceuticals, Inc. stock logo
ARNA
Arena Pharmaceuticals
83.77%
HUTCHMED (China) Limited stock logo
HCM
HUTCHMED
8.82%
Nektar Therapeutics stock logo
NKTR
Nektar Therapeutics
75.88%

Insider Ownership

CompanyInsider Ownership
Alkermes plc stock logo
ALKS
Alkermes
4.76%
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
7.50%
Arena Pharmaceuticals, Inc. stock logo
ARNA
Arena Pharmaceuticals
2.41%
HUTCHMED (China) Limited stock logo
HCM
HUTCHMED
3.60%
Nektar Therapeutics stock logo
NKTR
Nektar Therapeutics
3.07%

Miscellaneous

CompanyEmployeesShares OutstandingFree FloatOptionable
Alkermes plc stock logo
ALKS
Alkermes
2,100169.18 million161.13 millionOptionable
Apellis Pharmaceuticals, Inc. stock logo
APLS
Apellis Pharmaceuticals
702120.58 million111.54 millionOptionable
Arena Pharmaceuticals, Inc. stock logo
ARNA
Arena Pharmaceuticals
44861.66 million60.17 millionOptionable
HUTCHMED (China) Limited stock logo
HCM
HUTCHMED
1,988174.25 million167.98 millionNot Optionable
Nektar Therapeutics stock logo
NKTR
Nektar Therapeutics
137183.62 million177.98 millionOptionable

APLS, ARNA, ALKS, HCM, and NKTR Headlines

SourceHeadline
Nektar exercises TNFR2 antibody option from Biolojic collaborationNektar exercises TNFR2 antibody option from Biolojic collaboration
bioworld.com - April 26 at 8:58 AM
Biolojic Design Announces that Nektar Therapeutics Has Exercised Its License Option to Develop an AI-Designed Agonistic Antibody Targeting TNFR2 for the Treatment of Autoimmune DiseasesBiolojic Design Announces that Nektar Therapeutics Has Exercised Its License Option to Develop an AI-Designed Agonistic Antibody Targeting TNFR2 for the Treatment of Autoimmune Diseases
globenewswire.com - April 24 at 7:00 AM
Nektar Therapeutics (NASDAQ:NKTR) Given Consensus Rating of "Hold" by AnalystsNektar Therapeutics (NASDAQ:NKTR) Given Consensus Rating of "Hold" by Analysts
americanbankingnews.com - April 24 at 2:48 AM
Natural Killer (NK) Cell Therapy Pipeline Research Report 2024: Comprehensive Insights About 100+ Companies and 185+ Pipeline DrugsNatural Killer (NK) Cell Therapy Pipeline Research Report 2024: Comprehensive Insights About 100+ Companies and 185+ Pipeline Drugs
finance.yahoo.com - April 20 at 8:58 AM
Nektar regains Nasdaq compliance with bid priceNektar regains Nasdaq compliance with bid price
investing.com - April 20 at 12:52 AM
Nektar Therapeutics (NASDAQ:NKTR) Stock Price Passes Above Two Hundred Day Moving Average of $0.65Nektar Therapeutics (NASDAQ:NKTR) Stock Price Passes Above Two Hundred Day Moving Average of $0.65
americanbankingnews.com - April 16 at 2:34 AM
Nektar Therapeutics Sees Something In The Data And Puts Its Drug To The TestNektar Therapeutics Sees Something In The Data And Puts Its Drug To The Test
seekingalpha.com - April 10 at 1:44 AM
US open: Stocks trade higher, Dow reverses yesterdays lossesUS open: Stocks trade higher, Dow reverses yesterday's losses
sharecast.com - April 4 at 3:34 PM
Nektar (NKTR) Up 7.5% Since Last Earnings Report: Can It Continue?Nektar (NKTR) Up 7.5% Since Last Earnings Report: Can It Continue?
zacks.com - April 3 at 12:31 PM
Nektar Therapeutics (NASDAQ:NKTR) Sees Large Growth in Short InterestNektar Therapeutics (NASDAQ:NKTR) Sees Large Growth in Short Interest
marketbeat.com - April 1 at 7:56 PM
Cult 70s proggers’ absorbing sixth album presented at its fullest.Cult 70s proggers’ absorbing sixth album presented at its fullest.
loudersound.com - March 30 at 8:47 AM
“A fascinating listen that sometimes sounds like a missing 10cc album plus a little Be Box Deluxe”: Nektar’s Recycled 5CD set“A fascinating listen that sometimes sounds like a missing 10cc album plus a little Be Box Deluxe”: Nektar’s Recycled 5CD set
yahoo.com - March 29 at 5:45 PM
Nektar Management to Present at the H.C. Wainwright 2nd Annual Autoimmune & Inflammatory Disease Virtual ConferenceNektar Management to Present at the H.C. Wainwright 2nd Annual Autoimmune & Inflammatory Disease Virtual Conference
prnewswire.com - March 22 at 2:00 PM
US open: Stocks lower as inflation data weighs on marketsUS open: Stocks lower as inflation data weighs on markets
sharecast.com - March 15 at 1:38 PM
Nektar (NKTR) Begins Phase IIb Study Rezpeg in Alopecia AreataNektar (NKTR) Begins Phase IIb Study Rezpeg in Alopecia Areata
zacks.com - March 6 at 1:35 PM
Nektar Therapeutics (NASDAQ:NKTR) Q4 2023 Earnings Call TranscriptNektar Therapeutics (NASDAQ:NKTR) Q4 2023 Earnings Call Transcript
finance.yahoo.com - March 5 at 2:06 PM
Nektar (NKTR) Q4 Loss Wider Than Expected, Revenue BeatNektar (NKTR) Q4 Loss Wider Than Expected, Revenue Beat
zacks.com - March 5 at 11:11 AM
Q4 2023 Nektar Therapeutics Earnings CallQ4 2023 Nektar Therapeutics Earnings Call
finance.yahoo.com - March 5 at 9:06 AM
Nektar Therapeutics Announces Initiation of Phase 2b Clinical Study Evaluating Rezpegaldesleukin in Patients with Severe to Very Severe Alopecia AreataNektar Therapeutics Announces Initiation of Phase 2b Clinical Study Evaluating Rezpegaldesleukin in Patients with Severe to Very Severe Alopecia Areata
prnewswire.com - March 5 at 9:00 AM
Nektar Therapeutics (NKTR) Reports Q4 Loss, Tops Revenue EstimatesNektar Therapeutics (NKTR) Reports Q4 Loss, Tops Revenue Estimates
zacks.com - March 4 at 6:31 PM
Nektar Therapeutics Q4 Loss decreases, but misses estimatesNektar Therapeutics Q4 Loss decreases, but misses estimates
markets.businessinsider.com - March 4 at 6:05 PM
Nektar Therapeutics (NKTR) Reports Fiscal Year-End and Q4 2023 ResultsNektar Therapeutics (NKTR) Reports Fiscal Year-End and Q4 2023 Results
finance.yahoo.com - March 4 at 6:05 PM
Nektar Therapeutics Reports Fourth Quarter and Year-End 2023 Financial ResultsNektar Therapeutics Reports Fourth Quarter and Year-End 2023 Financial Results
prnewswire.com - March 4 at 4:15 PM
Nektar Therapeutics Announces $30 Mln Private Placement Financing With TCGX; Stock Up In PremarketNektar Therapeutics Announces $30 Mln Private Placement Financing With TCGX; Stock Up In Premarket
markets.businessinsider.com - March 4 at 1:05 PM

New MarketBeat Followers Over Time

Media Sentiment Over Time

Company Descriptions

Alkermes logo

Alkermes

NASDAQ:ALKS
Alkermes plc, a biopharmaceutical company, researches, develops, and commercializes pharmaceutical products to address unmet medical needs of patients in therapeutic areas in the United States, Ireland, and internationally. It has a portfolio of proprietary commercial products for the treatment of alcohol dependence, opioid dependence, schizophrenia and bipolar I disorder and a pipeline of clinical and preclinical product candidates in development for neurological disorders. Its marketed products include ARISTADA, an intramuscular injectable suspension for the treatment of schizophrenia; ARISTADA INITIO for the treatment of schizophrenia in adults; VIVITROL for the treatment of alcohol and prevention of opioid dependence; and LYBALVI, an oral atypical antipsychotic drug candidate for the treatment of adults with schizophrenia and bipolar I disorder. It has collaboration agreements primarily with Janssen Pharmaceutica N.V., Janssen Pharmaceutica Inc, and Janssen Pharmaceutica International. The company also offers proprietary technology platforms to third parties to enable them to develop, commercialize, and manufacture products. Alkermes plc was founded in 1987 and is headquartered in Dublin, Ireland.
Apellis Pharmaceuticals logo

Apellis Pharmaceuticals

NASDAQ:APLS
Apellis Pharmaceuticals, Inc., a commercial-stage biopharmaceutical company, focuses on the discovery, development, and commercialization of therapeutic compounds through the inhibition of the complement system for autoimmune and inflammatory diseases. It offers EMPAVELI for the treatment of paroxysmal nocturnal hemoglobinuria, C3 glomerulopathy and immune complex membranoproliferative glomerulonephritis, and hematopoietic stem cell transplantation-associated thrombotic microangiopathy; and SYFOVRE for treating geographic atrophy secondary to age-related macular degeneration and geographic atrophy (GA). The company also develops APL-3007, a small interfering RNA, or siRNA, which is in a Phase 1 clinical trial, as well as an oral complement inhibitor that is in preclinical development. It has a collaboration and license agreement with Swedish Orphan Biovitrum AB (publ) for development and commercialization of pegcetacoplan; and a collaboration with Beam Therapeutics Inc. focused on the use of Beam's base editing technology to discover new treatments for complement-driven diseases. The company was incorporated in 2009 and is based in Waltham, Massachusetts.
Arena Pharmaceuticals logo

Arena Pharmaceuticals

NASDAQ:ARNA
Arena Pharmaceuticals, Inc., a biopharmaceutical company, focuses on providing novel medicines with pharmacology and pharmacokinetics to patients worldwide. The company's investigational clinical programs include Etrasimod (APD334) that is in Phase III clinical trial for ulcerative colitis, Phase IIb/III clinical trial for Crohn's disease, Phase II clinical trial for alopecia areata, Phase III clinical trial for atopic dermatitis, and Phase IIb clinical trial for eosinophilic esophagitis; Olorinab (APD371), which is in Phase IIb clinical trial for the treatment of abdominal pain associated with irritable bowel syndrome; APD418 that is in Phase II clinical trial for acute heart failure; and Temanogrel for coronary microvascular obstruction that is in Phase II clinical trial. It also develops ralinepag (APD811), which is in Phase III clinical trial for pulmonary arterial hypertension. The company has collaboration agreements with United Therapeutics Corporation; Everest Medicines Limited; Eisai Co., Ltd. and Eisai Inc.; Boehringer Ingelheim International GmbH; Beacon Discovery, Inc.; and Aristea Therapeutics, Inc. Arena Pharmaceuticals, Inc. was incorporated in 1997 and is based in Park City, Utah. As of March 11, 2022, Arena Pharmaceuticals, Inc. operates as a subsidiary of Pfizer Inc.
HUTCHMED logo

HUTCHMED

NASDAQ:HCM
HUTCHMED (China) Limited, together with its subsidiaries, discovers, develops, and commercializes targeted therapeutics and immunotherapies for cancer and immunological diseases in Hong Kong and internationally. The company develops Savolitinib for the treatment of non-small cell lung cancer (NSCLC), papillary renal cell carcinoma (RCC), and gastric cancer (GC); and Fruquintinib, an inhibitor for colorectal cancer (CRC), breast cancer, gastric cancer, microsatellite stable-CRC endometrial cancer (EMC), NSCLC, RCC, gastrointestinal, cervical, and solid tumors. It also develops Surufatinib, which is used for the treatment of pancreatic neuroendocrine tumor (NET), non-pancreatic NET, neuroendocrine carcinoma, SCLC, biliary tract cancer, and solid tumors; and Sovleplenib that treats hematological cancers and certain chronic immune diseases. In addition, it develops Tazemetostat for the treatment of certain epithelioid sarcoma and follicular lymphoma patients; HMPL-306, an inhibitor for hematological malignancies, gliomas, chondrosarcomas, cholangiocarcinomas, and solid tumors; HMPL-760, a Bruton's tyrosine kinase inhibitor; HMPL-453 for intrahepatic cholangiocarcinoma and solid tumors; HMPL-295 and HMPL-415 for solid tumors; HMPL-653 for metastatic solid tumors and tenosynovial giant cell tumors; and HMPL-A83 for the treatment of malignant neoplasms. It has collaboration agreements with AstraZeneca AB (publ), Lilly (Shanghai) Management Company Limited, Takeda, BeiGene Ltd., Inmagene Biopharmaceuticals Co. Ltd., Innovent Biologics Co., Inc., Genor Biopharma Co. Ltd., Shanghai Junshi Biosciences Co. Ltd., and Epizyme, Inc. The company was formerly known as Hutchison China MediTech Limited and changed its name to HUTCHMED (China) Limited in May 2021. HUTCHMED (China) Limited was incorporated in 2000 and is headquartered in Hong Kong, Hong Kong.
Nektar Therapeutics logo

Nektar Therapeutics

NASDAQ:NKTR
Nektar Therapeutics, a biopharmaceutical company, focuses on discovering and developing medicines in the field of immunotherapy in the United States and internationally. The company is developing rezpegaldesleukin, a cytokine Treg stimulant that is in phase 2 clinical trial for the treatment of systemic lupus erythematosus and ulcerative colitis, as well as phase 2b clinical trial to treat atopic dermatitis and psoriasis; and NKTR-255, an IL-15 receptor agonist, which is in phase 1 clinical trial to boost the immune system's natural ability to fight cancer. It has collaboration agreements with Takeda Pharmaceutical Company Ltd.; AstraZeneca AB; UCB Pharma S.A.; F. Hoffmann-La Roche Ltd; Bausch Health Companies Inc.; Pfizer Inc.; Amgen Inc.; UCB Pharma (Biogen); Bristol-Myers Squibb Company; Merck KGaA; and SFJ Pharmaceuticals, Inc. The company was incorporated in 1990 and is headquartered in San Francisco, California.