Genmab — Share Issue/Capital Change 2012

Nov 14, 2012

Company Announcement

Copenhagen, Denmark; November 14, 2012 – Genmab A/S (OMX: GEN) will increase
its share capital by 750 shares as a consequence of the exercise of employee
warrants.

The increase is effected without any preemption rights for the existing
shareholders of the company or others. The shares are subscribed in cash at the
following price per share of nominally DKK 1: 750 shares at DKK 67.50. Proceeds
to the company are DKK 50,625 (approx. USD 8,600). The increase corresponds to
approx. 0.001 % of the company’s share capital.

The new shares are ordinary shares without any special rights and are freely
transferable negotiable instruments. The new shares give rights to dividends
and other rights in relation to the company as of subscription, i.e. inter alia
full rights to dividends for the financial year 2012. The new shares will be
listed on NASDAQ OMX Copenhagen after registration with the Danish Business
Authority. Genmab A/S’ current share capital amounts to DKK 50,307,142 and will
after the capital increase be DKK 50,307,892. The capital increase is expected
to be finalized shortly.

About Genmab A/S
Genmab is a publicly traded, international biotechnology company specializing
in the creation and development of differentiated human antibody therapeutics
for the treatment of cancer. Founded in 1999, the company’s first marketed
antibody, ofatumumab (Arzerra®), was approved to treat chronic lymphocytic
leukemia in patients who are refractory to fludarabine and alemtuzumab after
less than eight years in development. Genmab’s validated and next generation
antibody technologies are expected to provide a steady stream of future product
candidates. Partnering of innovative product candidates and technologies is a
key focus of Genmab’s strategy and the company has alliances with top tier
pharmaceutical and biotechnology companies. For more information visit
www.genmab.com.

Contact:
Rachel Curtis Gravesen, Senior Vice President, Investor Relations &
Communications
T: +45 33 44 77 20; M: +45 25 12 62 60; E: r.gravesen@genmab.com

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 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 www.genmab.com. Genmab does not undertake any obligation to update
or revise forward looking statements in this Company Announcement nor to
confirm such statements in relation to actual results, unless required by law.

Genmab®; the Y-shaped Genmab logo®; HuMax®; HuMax-CD20®; DuoBody® and UniBody®
are all trademarks of Genmab A/S. Arzerra® is a trademark of GlaxoSmithKline.

Company Announcement no. 30
CVR no. 2102 3884

Genmab A/S
Bredgade 34E
1260 Copenhagen K
Denmark