Amgen vs AstraZeneca: Founders, CEOs and History

Company facts

Founders

CEOs and their tenures

Timeline: Amgen and AstraZeneca side by side

1. 1913AstraZeneca

   Astra AB Founded in Södertälje, Sweden

   400 doctors and apothecaries establish Astra AB to manufacture pharmaceuticals for the Swedish market, creating the foundation for what would become one of Europe's largest drug companies.

2. 1980Amgen

   Applied Molecular Genetics is incorporated

   Applied Molecular Genetics (AMGen) was incorporated on April 8, 1980 in Thousand Oaks, California, as the idea of venture capitalist William K. Bowes Jr. and a group of scientific collaborators.

3. 1983Amgen

   Nasdaq listing and the erythropoietin clone

   Amgen completed its initial public offering on June 17, 1983, raising nearly US$40 million under chief financial officer Gordon Binder, and formally shortened its name to Amgen.

4. 1984Amgen

   Kirin-Amgen joint venture formed

   Amgen and Kirin Brewery Company of Japan formed Kirin-Amgen in 1984 as a joint venture for the worldwide commercialization of erythropoietin.

5. 1985Amgen

   G-CSF cloned, leading to Neupogen

   While Fu-Kuen Lin's team worked on erythropoietin, researcher Larry Souza and his group cloned and expressed human granulocyte colony-stimulating factor in 1985.

6. 1989Amgen

   FDA approves Epogen

   The FDA approved Epogen (epoetin alfa) on June 1, 1989 for anemia in patients with chronic kidney failure on dialysis. It was the first commercial recombinant human erythropoietin. Epogen's U.S.

7. 1991Amgen

   Neupogen approved, giving Amgen a second franchise

   The FDA approved Neupogen (filgrastim) in February 1991. By stimulating white blood cell production it reduced the risk of infection in cancer patients with chemotherapy-induced neutropenia.

8. 1991Amgen

   Amgen wins the erythropoietin patent fight

   On March 6, 1991 the U.S. Court of Appeals for the Federal Circuit upheld the Kirin-Amgen erythropoietin patent and ruled against Genetics Institute in Amgen v. Chugai Pharmaceutical and Genetics Institute.

9. 1993AstraZeneca

   Zeneca Group Spun Off from ICI

   Imperial Chemical Industries demerges its pharmaceuticals and agrochemicals businesses to form Zeneca Group PLC, with initial products including Zestril, Nolvadex, and Zoladex generating approximately $3.2 billion in annual sales.

10. 1999AstraZeneca

    Astra and Zeneca Merge to Form AstraZeneca

    The all-share merger of equals completes on 6 April 1999, creating AstraZeneca PLC.

11. 2000AstraZeneca

    Nexium Launch Replaces Prilosec

    AstraZeneca launches Nexium (esomeprazole), the single-isomer successor to Losec/Prilosec, in Europe in 2000 and in the United States in 2001 after FDA approval on 20 February 2001.

12. 2001Amgen

    FDA approves Aranesp, the longer-acting EPO

    Aranesp (darbepoetin alfa), an erythropoietin analogue with modified glycosylation and a longer half-life, was approved in 2001. Less frequent dosing than Epogen improved convenience and gave Amgen a newer, higher-priced product to migrate patients toward.

13. 2002Amgen

    US$16 billion Immunex acquisition brings Enbrel in-house

    Amgen completed its acquisition of Immunex Corporation on July 16, 2002, the largest biotechnology deal to that point at about US$16 billion in stock and cash.

14. 2006AstraZeneca

    Acquisition of Cambridge Antibody Technology

    AstraZeneca agrees in May 2006 to buy Cambridge Antibody Technology for 1,320 pence a share, valuing the UK biotech at 702 million pounds or about $1.32 billion.

15. 2007AstraZeneca

    Acquisition of MedImmune for $15.6 Billion

    AstraZeneca acquires MedImmune for $15.6 billion, entering the biologics market and gaining the Synagis respiratory syncytial virus franchise and antibody technology platforms. The Gaithersburg facility becomes one of three global R&D centres.

16. 2010Amgen

    Prolia and XGEVA create the bone health franchise

    The FDA approved Prolia (denosumab) for postmenopausal osteoporosis in June 2010 and XGEVA, the same molecule at a higher dose, for prevention of skeletal-related events in cancer patients in November 2010.

17. 2012AstraZeneca

    Pascal Soriot Appointed CEO

    Pascal Soriot joins AstraZeneca as Chief Executive Officer on October 1, 2012, with a base salary of $1.4 million and a mandate to reverse declining revenue and R&D productivity through science-led investment.

18. 2014AstraZeneca

    Pfizer Hostile Takeover Rejected

    AstraZeneca's board rejects a $117 billion hostile takeover offer from Pfizer, with Soriot arguing that the undervaluation would destroy long-term shareholder value and pipeline potential.

19. 2014AstraZeneca

    Acquisition of Almirall Respiratory Portfolio

    AstraZeneca acquires the respiratory portfolio of Spanish pharmaceutical company Almirall for approximately $2.1 billion, strengthening the company's position in COPD and asthma with products including Eklira and pipeline candidates that become Breztri.

20. 2015AstraZeneca

    Tagrisso Approved for EGFR-Mutated Lung Cancer

    The FDA approves Tagrisso (osimertinib) in November 2015 for metastatic EGFR T790M mutation-positive non-small cell lung cancer, the first product from Soriot's reinvestment strategy to reach market.

21. 2017AstraZeneca

    Imfinzi Approved Based on PACIFIC Trial

    The FDA approves Imfinzi (durvalumab) for unresectable stage III non-small cell lung cancer after chemoradiation, based on PACIFIC trial data showing survival benefits.

22. 2019Amgen

    US$13.4 billion purchase of Otezla from Celgene

    Amgen agreed in August 2019 to buy worldwide rights to Otezla (apremilast) from Celgene for US$13.4 billion in cash, or about US$11.2 billion net of the present value of US$2.2 billion of anticipated future cash tax benefits, and closed on November 21, 2019.

23. 2020Amgen

    Amgen joins the Dow Jones Industrial Average

    Amgen replaced Pfizer in the Dow Jones Industrial Average on August 31, 2020, becoming one of the thirty components in the index. Inclusion recognized the scale Amgen had reached and added passive demand from Dow-tracking funds.

24. 2020AstraZeneca

    COVID-19 Vaccine Development with Oxford University

    AstraZeneca partners with the University of Oxford to develop and manufacture the Vaxzevria COVID-19 vaccine, distributing billions of doses globally at nonprofit pricing during the pandemic peak.

25. 2021AstraZeneca

    Acquisition of Alexion Pharmaceuticals for $39 Billion

    AstraZeneca completes the $39 billion acquisition of Alexion on July 21, 2021, entering the rare disease market with Soliris and Ultomiris and creating a dedicated rare disease unit headquartered in Boston.

26. 2023Amgen

    US$27.8 billion Horizon Therapeutics acquisition closes

    Amgen completed the acquisition of Horizon Therapeutics plc on October 6, 2023 for US$116.50 per share in cash, an equity value of about US$27.8 billion, after settling FTC litigation with a behavioral consent decree.

27. 2023AstraZeneca

    CinCor Pharma Acquired for up to $1.8 Billion

    AstraZeneca agrees on 9 January 2023 to acquire CinCor Pharma for up to $1.8 billion, $26 per share in cash plus a $10 per share contingent value right, to gain baxdrostat, an aldosterone synthase inhibitor for resistant hypertension.

28. 2024Amgen

    Imdelltra becomes the first T-cell engager for small cell lung cancer

    The FDA granted accelerated approval to tarlatamab, sold as Imdelltra, on May 16, 2024 for extensive stage small cell lung cancer that has progressed on or after platinum-based chemotherapy.

29. 2024AstraZeneca

    Total Revenue Reaches $54.073 Billion

    AstraZeneca reports Total Revenue of $54.073 billion for fiscal year 2024, an 18% increase at actual rates and 21% at constant exchange rates, with 16 blockbuster medicines, 74 regulatory events, and 24 pipeline progression events.

30. 2024AstraZeneca

    Fusion Pharmaceuticals and Gracell Acquisitions

    AstraZeneca acquires Fusion Pharmaceuticals for $2 billion to access radiopharmaceutical technology and Gracell Biotechnologies for $1.2 billion for cell therapy manufacturing, expanding modality diversity into radiopharmaceuticals and CAR-T.

31. 2025Amgen

    VESALIUS-CV extends the Repatha case to primary prevention

    In November 2025 Amgen reported Phase 3 VESALIUS-CV results in more than 12,000 patients with atherosclerosis or diabetes but no prior heart attack or stroke.

32. 2025AstraZeneca

    Total Revenue Reaches $58.739 Billion

    AstraZeneca reports Total Revenue of $58.739 billion for fiscal year 2025, an 8% increase at constant exchange rates, with 16 positive Phase III readouts, 43 major market approvals, and a commitment to invest $50 billion in U.S. manufacturing by 2030.

33. 2025AstraZeneca

    EsoBiotec Acquired for Up to $1 Billion

    AstraZeneca acquires Belgian biotech EsoBiotec for up to $1 billion to access in vivo cell therapy technology, eliminating the need for ex vivo manufacturing in CAR-T therapies.

34. 2025AstraZeneca

    $50 Billion US Manufacturing and R&D Commitment

    AstraZeneca announces on 21 July 2025 that it will invest $50 billion in United States manufacturing and research by 2030, including a new Virginia facility later raised to $4.5 billion.

35. 2026Amgen

    Medicare price setting reaches Enbrel and Otezla

    Enbrel's negotiated Medicare price under the Inflation Reduction Act took effect on January 1, 2026, after it was named in the first round of ten drugs selected for negotiation.

36. 2026AstraZeneca

    Ordinary Shares Begin Trading on the NYSE

    AstraZeneca ordinary shares start trading on the New York Stock Exchange on 2 February 2026 under the ticker AZN, after the American Depositary Share programme and certain debt securities stopped trading on Nasdaq on 30 January 2026.

37. 2026AstraZeneca

    Baxfendy Approved in the US for Hypertension

    The FDA approves Baxfendy (baxdrostat) in May 2026 as the first aldosterone synthase inhibitor for hypertension, used in combination with other antihypertensives in adults who are not adequately controlled.

38. 2026AstraZeneca

    $15 Billion China Investment Through 2030

    AstraZeneca announces on 29 January 2026 that it will invest $15 billion in China through 2030 to expand manufacturing and research, in a market that is its second largest and about 12% of revenue.

Acquisitions

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