Major Shareholder Announcement

Company Announcement

• Major shareholder announcement for Genmab A/S

Copenhagen, Denmark; July 19, 2019 – Genmab A/S (CSE: GEN, Nasdaq: GMAB) announces under reference to Section 30 of the Danish Capital Markets Act that BlackRock, Inc. has informed us that, as of July 18, 2019, BlackRock, Inc. has increased their total ownership (indirectly owned shares and financial instruments) in Genmab A/S to 3,085,192 shares, which amounts to 5.00% of the share capital and voting rights in Genmab A/S.

About Genmab

Genmab is a publicly traded, international biotechnology company specializing in the creation and development of differentiated antibody therapeutics for the treatment of cancer. Founded in 1999, the company has two approved antibodies, DARZALEX^® (daratumumab) for the treatment of certain multiple myeloma indications, and Arzerra^® (ofatumumab) for the treatment of certain chronic lymphocytic leukemia indications. Daratumumab is in clinical development for additional multiple myeloma indications, other blood cancers and amyloidosis. A subcutaneous formulation of ofatumumab is in development for relapsing multiple sclerosis. Genmab also has a broad clinical and pre-clinical product pipeline. Genmab's technology base includes a number of proprietary next generation antibody. Genmab has alliances with other leading pharmaceutical and biotechnology companies.

Contact:          

Marisol Peron, Corporate Vice President, Communications & Investor Relations

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For Investor Relations:

Andrew Carlsen, Senior Director, Investor Relations

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This Company Announcement contains forward looking statements. The words “believe”, “expect”, “anticipate”, “intend” and “plan” and similar expressions identify forward looking statements. Actual results or performance may differ materially from any future results or performance expressed or implied by such statements. The important factors that could cause our actual results or performance to differ materially include, among others, risks associated with pre-clinical and clinical development of products, uncertainties related to the outcome and conduct of clinical trials including unforeseen safety issues, uncertainties related to product manufacturing, the lack of market acceptance of our products, our inability to manage growth, the competitive environment in relation to our business area and markets, our inability to attract and retain suitably qualified personnel, the unenforceability or lack of protection of our patents and proprietary rights, our relationships with affiliated entities, changes and developments in technology which may render our products or technologies obsolete, and other factors. For a further discussion of these risks, please refer to the risk management sections in Genmab’s most recent financial reports, which are available on and the risk factors included in Genmab’s Registration Statement on Form F-1 and other filings with the U.S. Securities and Exchange Commission (SEC), which are available at . Genmab does not undertake any obligation to update or revise forward looking statements in this Company Announcement nor to confirm such statements to reflect subsequent events or circumstances after the date made or in relation to actual results, unless required by law.



Genmab A/S and/or its subsidiaries own the following trademarks: Genmab^®; the Y-shaped Genmab logo^®; Genmab in combination with the Y-shaped Genmab logo^®; HuMax^®; DuoBody^®; DuoBody in combination with the DuoBody logo^®; HexaBody^®; HexaBody in combination with the HexaBody logo^®; DuoHexaBody^®; HexElect^®; and UniBody^®. Arzerra^® is a trademark of Novartis AG or its affiliates. DARZALEX^® is a trademark of Janssen Pharmaceutica NV.

Company Announcement no. 37

CVR no. 2102 3884

LEI Code 529900MTJPDPE4MHJ122

Genmab A/S

Kalvebod Brygge 43

1560 Copenhagen V

Denmark

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