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Compare · AZN vs SNY

AZN vs SNY

Side-by-side comparison of AstraZeneca PLC (AZN) and Sanofi (SNY): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both AZN and SNY operate in Biotechnology: Pharmaceutical Preparations (Health Care), so they compete in similar markets.
  • AZN is the larger of the two at $581.12B, about 5.1x SNY ($113.60B).
  • Over the past year, AZN is down 0.4% and SNY is down 13.9% - AZN leads by 13.5 points.
  • AZN has been more active in the news (13 items in the past 4 weeks vs 6 for SNY).
  • Both have 25 recent analyst ratings on file.
PerformanceAZN-0.44%SNY-1.48%
2026-02-02+0.00%2026-04-30
MetricAZNSNY
Company
AstraZeneca PLC
Sanofi
Price
$187.45+1.19%
$46.57+1.15%
Market cap
$581.12B
$113.60B
1M return
-4.96%
-3.34%
1Y return
-0.44%
-13.93%
Industry
Biotechnology: Pharmaceutical Preparations
Biotechnology: Pharmaceutical Preparations
Exchange
NYSE
NASDAQ
IPO
2026
News (4w)
13
6
Recent ratings
25
25
AZN

AstraZeneca PLC

AstraZeneca PLC discovers, develops, manufactures, and commercializes prescription medicines in the areas of oncology, cardiovascular, renal and metabolism, respiratory, infection, neuroscience, and gastroenterology worldwide. The company's marketed products include Tagrisso, Lynparza, Imfinzi, Enhertu, Koselugo, Lumoxiti, Equidacent, Zoladex, Faslodex, Iressa, Arimidex, Casodex/Cosudex, and others for oncology diseases; Onglyza, Bydureon, Lokelma, Byetta, Qtern, Symlin, and others for cardiovascular, renal, and metabolism diseases; and Symbicort, Pulmicort, Fasenra, Daliresp/Daxas, Duaklir, Tudorza/Eklira, Bevespi, Breztri, Anifrolumab, and others for respiratory and immunology diseases. It also offers other medicines and COVID-19 products, including Synagis, Fluenz Tetra/FluMist Quadrivalent, Seroquel IR/Seroquel XR, Vimovo, Movantik/Moventig, Nexium, Losec/Prilosec, and COVID-19 Vaccine AstraZeneca. The company serves primary care and specialty care physicians through distributors and local representative offices. It has a collaboration agreement with Daiichi Sankyo to develop and commercialize DS-1062 for the treatment of trophoblast cell-surface antigen 2 (TROP2) tumor; AliveCor, Inc. to develop non-invasive potassium monitoring solutions; Massachusetts General Hospital to accelerate digital health solutions; Sanguina on smartphone application study for hemoglobin management in patients with anemia of chronic kidney disease; Alchemab to enhance prostate cancer research; and Proteros biostructures GmbH to discover and develop novel small molecules for the treatment of various types of cancer. The company was formerly known as Zeneca Group PLC and changed its name to AstraZeneca PLC in April 1999. It has a collaboration agreement with Regeneron Pharmaceuticals, Inc. to research, develop, and commercialize small molecule medicines for obesity. AstraZeneca PLC was incorporated in 1992 and is headquartered in Cambridge, the United Kingdom.

SNY

Sanofi

Sanofi, a healthcare company, engages in the research, development, manufacture, and marketing of therapeutic solutions in the United States, Europe, and internationally. It operates through three segments: Pharmaceuticals, Vaccines, and Consumer Healthcare. The company provides specialty care products, including human monoclonal antibodies; products for multiple sclerosis, neurology, other inflammatory diseases, immunology, rare diseases, oncology, and rare blood disorders; medicines for diabetes; and cardiovascular and established prescription products. It also supplies poliomyelitis, pertussis, and hib pediatric vaccines; and influenza, adult booster, meningitis, and travel and endemic vaccines. In addition, the company offers allergy, cough and cold, pain, digestive, and nutritional products; and other products, such as daily body lotions, anti-itch products, moisturizing and soothing lotions, and body and foot creams, as well as powders for eczema. It also has various pharmaceutical products and vaccines in development stage. Sanofi has collaboration agreement with GlaxoSmithKline to develop a recombinant Covid-19 vaccine; and a research collaboration with Stanford University School of Medicine to advance the understanding of immunology and inflammation through open scientific exchange. It also has a collaboration with TrialSpark Inc. to execute clinical research studies in the areas of chronic obstructive pulmonary disease. The company was formerly known as Sanofi-Aventis and changed its name to Sanofi in May 2011. Sanofi was incorporated in 1994 and is headquartered in Paris, France.