Amgen (AMGN) 8-K Entry into a Material Definitive Agreement

Exhibit 99.1

  News Release   One Amgen Center Drive Thousand Oaks, CA 91320-1799 Telephone805-447-1000 www.Amgen.com

AMGEN ENTERS INTO STRATEGIC COLLABORATION WITH

BEIGENE TO EXPAND ONCOLOGY PRESENCE IN CHINA

Amgen to Acquire 20.5% Stake in BeiGene for Approximately

$2.7 Billion in Cash

BeiGene to Commercialize XGEVA^® (denosumab), KYPROLIS^®

(carfilzomib) and BLINCYTO^® (blinatumomab) in China

Companies to Collaborate on Advancing Amgen’s

Innovative Oncology Pipeline in China

Amgen Will Continue to Commercialize itsNon-Oncology Product

Portfolio in China

Amgen to Host Call for Investors Today at 2 p.m. PT

THOUSAND OAKS, Calif. (Oct. 31, 2019) – Amgen (NASDAQ:AMGN) announced today that it has entered into a strategic collaboration with BeiGene that will significantly accelerate Amgen’s plans to expand its oncology presence in China, the world’s second-largest pharmaceutical market. BeiGene is a research-based, oncology-focused biotechnology company with an established and highly experienced team in China, including a700-person commercial organization and a600-person clinical development organization.

“This strategic collaboration with BeiGene will enable Amgen to serve significantly more patients by expanding our presence in the world’s most populous country,” said Robert A. Bradway, Amgen’s chairman and chief executive officer. “Cancer is a leading cause of death in China and will only become a more pressing public health issue as the Chinese population ages. With its extensive commercial and clinical capabilities within China and a commitment to global quality standards, BeiGene is the ideal strategic collaborator as we seek to make a meaningful difference in the lives of millions of cancer patients in China and around the world.”

As part of the collaboration:

• Amgen will acquire a 20.5% stake in BeiGene for approximately $2.7 billion in cash. This represents a purchase price of $174.85 per BeiGene American Depositary Share on NASDAQ, a 36% premium to BeiGene’s30-day volume-weighted average share price as of Oct. 30, 2019. Amgen will nominate one person to serve on BeiGene’s Board of Directors.

• Under the agreement, BeiGene will commercialize XGEVA^® (denosumab), KYPROLIS^® (carfilzomib) and BLINCYTO^® (blinatumomab) in China during which time the parties will equally share profits and losses. Two of these products will revert to Amgen, one after five years and one after seven years. Following the commercialization period BeiGene

will have the right to retain one product and will be entitled to receive royalties on sales in China for an additional five years on the products not retained. XGEVA was launched in China in September of this year; KYPROLIS and BLINCYTO are both in Phase 3 trials in China.

• Amgen and BeiGene will collaborate to advance 20 medicines from Amgen’s innovative oncology pipeline in China and globally. BeiGene will share global research and development costs and contribute up to $1.25 billion to advance these medicines. Amgen will pay royalties to BeiGene on the sales of these products outside of China, with the exception of AMG 510, Amgen’sfirst-in-class KRAS^G12C inhibitor that is being studied as a potential treatment for solid tumors. Amgen anticipates utilizing data from clinical trials conducted in China to advance the development of its oncology portfolio globally.

• Of the 20 oncology medicines in development, BeiGene will assume commercial rights in China for seven years after launch for those that receive approval in China, including AMG 510. After this time, BeiGene will retain rights to up to six of these products in China, excluding AMG 510, while rights on remaining products revert to Amgen. Amgen and BeiGene will share profits in China equally on these products until the rights revert to Amgen, after which Amgen will pay royalties to BeiGene on sales in China for a period of five years after reversion.

• Amgen will continue to commercialize itsnon-oncology product portfolio in China. Earlier this year, Amgen launched its first-ever product in China, Repatha^® (evolocumab), an LDL cholesterol-lowering treatment proven to reduce the risk of heart attacks and stroke. Amgen expects to launch a number of othernon-oncology medicines in China over the next several years, including Prolia^® (denosumab), which reduces the risk of fracture in postmenopausal women with osteoporosis.

• XGEVA, KYPROLIS and BLINCYTO, as well as the medicines in Amgen’s oncology pipeline, will be manufactured at Amgen’s existing facilities.

Since 2011, Amgen has expanded its geographic presence from approximately 50 to 100 countries, enabling the company to play a growing role in serving the rapidly increasing demand for better healthcare around the world. The pharmaceutical market in China is expected to grow briskly as access to new medicines continues to improve. With approximately four million people diagnosed with cancer annually and 2.3 million deaths from the disease each year, the need for new oncology treatments in China is particularly acute and the oncology market is one of the fastest-growing segments of the overall pharmaceutical market there.

Amgen will purchase its equity stake in BeiGene with available cash and expects to retain its investment grade credit rating.

“Amgen’s capital allocation priorities remain unchanged,” said David W. Meline, executive vice president and chief financial officer at Amgen. “We will continue to grow our business through internal investment and business development, while providing attractive returns to our shareholders through a growing dividend and continued share repurchases.”

The transaction is expected to close in early 2020 subject to BeiGene shareholder approval, the expiration or termination of waiting periods under all applicable antitrust laws, and satisfaction of other customary closing conditions.

Goldman Sachs & Co. LLC is acting as exclusive financial advisor, and Latham & Watkins LLP is serving as legal advisor to Amgen.

Webcast Details

Amgen will host a webcast call today at 2 p.m. PT. where members of Amgen’s executive management team will discuss the Company’s strategic collaboration with BeiGene.

Live audio webcast of the investor call will be broadcast over the internet simultaneously and will be available to members of the news media, investors and the general public.

The webcast, as with other selected presentations regarding developments in Amgen’s business given at certain investor and medical conferences, can be accessed on Amgen’s website,www.amgen.com, under Investors. Information regarding presentation times, webcast availability and webcast links are noted on Amgen’s Investor Relations Events Calendar. The webcast will be archived and available for replay for at least 90 days after the event.

For more information about Amgen’s products, including important safety information, please visitwww.xgeva.com,www.kyprolis.com,www.blincyto.com,www.repatha.com, andwww.prolia.com.

About Amgen

Amgen is committed to unlocking the potential of biology for patients suffering from serious illnesses by discovering, developing, manufacturing and delivering innovative human therapeutics. This approach begins by using tools like advanced human genetics to unravel the complexities of disease and understand the fundamentals of human biology.

Amgen focuses on areas of high unmet medical need and leverages its biologics manufacturing expertise to strive for solutions that improve health outcomes and dramatically improve people’s lives. A biotechnology pioneer since 1980, Amgen has grown to be the world’s largest independent biotechnology company, has reached millions of patients around the world and is developing a pipeline of medicines with breakaway potential.

For more information, visitwww.amgen.com and follow us onwww.twitter.com/amgen.

Forward-Looking Statements

This news release contains forward-looking statements that are based on the current expectations and beliefs of Amgen. All statements, other than statements of historical fact, are statements that could be deemed forward-looking statements, including any statements on the outcome, benefits and synergies of the BeiGene strategic collaboration, including the impact onnon-GAAP EPS, as

well as estimates of revenues, operating margins, capital expenditures, cash, other financial metrics, expected legal, arbitration, political, regulatory or clinical results or practices, customer and prescriber patterns or practices, reimbursement activities and outcomes and other such estimates and results. Forward-looking statements involve significant risks and uncertainties, including those discussed below and more fully described in the Securities and Exchange Commission reports filed by Amgen, including our most recent annual report on Form10-K and any subsequent periodic reports onForm 10-Q and current reports on Form8-K. Unless otherwise noted, Amgen is providing this information as of the date of this news release and does not undertake any obligation to update any forward-looking statements contained in this document as a result of new information, future events or otherwise.

No forward-looking statement can be guaranteed and actual results may differ materially from those we project. Our results may be affected by our ability to successfully market both new and existing products domestically and internationally, clinical and regulatory developments involving current and future products, sales growth of recently launched products, competition from other products including biosimilars, difficulties or delays in manufacturing our products and global economic conditions. In addition, sales of our products are affected by pricing pressure, political and public scrutiny and reimbursement policies imposed by third-party payers, including governments, private insurance plans and managed care providers and may be affected by regulatory, clinical and guideline developments and domestic and international trends toward managed care and healthcare cost containment. Furthermore, our research, testing, pricing, marketing and other operations are subject to extensive regulation by domestic and foreign government regulatory authorities. We or others could identify safety, side effects or manufacturing problems with our products, including our devices, after they are on the market. Our business may be impacted by government investigations, litigation and product liability claims. In addition, our business may be impacted by the adoption of new tax legislation or exposure to additional tax liabilities. If we fail to meet the compliance obligations in the corporate integrity agreement between us and the U.S. government, we could become subject to significant sanctions. Further, while we routinely obtain patents for our products and technology, the protection offered by our patents and patent applications may be challenged, invalidated or circumvented by our competitors, or we may fail to prevail in present and future intellectual property litigation. We perform a substantial amount of our commercial manufacturing activities at a few key facilities, including in Puerto Rico, and also depend on third parties for a portion of our manufacturing activities, and limits on supply may constrain sales of certain of our current products and product candidate development. We rely on collaborations with third parties for the development of some of our product candidates and for the commercialization and sales of some of our commercial products. In addition, we compete with other companies with respect to many of our marketed products as well as for the discovery and development of new products. Discovery or identification of new product candidates or development of new indications for existing products cannot be guaranteed and movement from concept to product is uncertain; consequently, there can be no guarantee that any particular product candidate or development of a new indication for an existing product will be successful and become a commercial product. Further, some raw materials, medical devices and component parts for our products are supplied by sole third-party suppliers. Certain of our distributors, customers and payers have substantial purchasing leverage in their dealings with us. The discovery of significant problems with a product similar to one of our products that implicate an entire class of products could have a material adverse effect on sales of the affected products and on our business and results of operations. Our efforts to collaborate with or acquire other companies or products and to integrate the operations of companies or in support of products we have acquired may not be successful. A breakdown, cyberattack or information security breach could compromise the confidentiality, integrity and availability of our systems and our data. Our stock price is volatile and may be

affected by a number of events. Our business performance could affect or limit the ability of our Board of Directors to declare a dividend or our ability to pay a dividend or repurchase our common stock. We may not be able to access the capital and credit markets on terms that are favorable to us, or at all.

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CONTACT: Amgen, Thousand Oaks

Trish Hawkins,805-447-5631 (media)

Jessica Akopyan,805-447-0974 (media)

Arvind Sood,805-447-1060 (investors)