REPORT PURSUANT TO SECTION 28a OF THE DANISH SECURITIES TRADING ACT

Copenhagen, Denmark; May 10, 2007 - Pursuant to Section 28a of the Danish Securities Trading Act, Genmab A/S (CSE: GEN) shall make public information on transactions by managerial employees and their related parties involving Genmab shares and related instruments, as follows:


Name

Ernst H. Schweizer

Reason

Member of Board of Directors

Issuer

Genmab A/S

ID code/ ISIN

DK 0010272202

Description

Shares

Transaction

Sale

Trading date

May 9, 2007

Market

Copenhagen Stock Exchange

Number

22,340

Market value

DKK 8,489,200

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