Copenhagen, Denmark; November 20, 2007 – Pursuant to Section 28a of the Danish Securities Trading Act, Genmab A/S (OMX: GEN) shall make public information on transactions by managerial employees and their related parties involving Genmab shares and related instruments, as follows:

Name:  Hans Henrik Munch-Jensen

Reason: Member of the Board of Directors

Issuer: Genmab A/S

ID code/ ISIN: DK0010272202

Description: Shares

Transaction: Buy

Trading date: November 19, 2007

Market: OMX Nordic Exchange Copenhagen A/S

Number: 300

Market value: DKK 93,750

Name:  Mimi Munch-Jensen

Reason: Daughter of Board Member Hans Henrik Munch-Jensen

Issuer: Genmab A/S

ID code/ ISIN: DK0010272202

Description: Shares

Transaction: Buy

Trading date: November 19, 2007

Market: OMX Nordic Exchange Copenhagen A/S

Number: 150

Market value: DKK 46,875

Name:  Minna Munch-Jensen

Reason: Daughter of Board Member Hans Henrik Munch-Jensen

Issuer: Genmab A/S

ID code/ ISIN: DK0010272202

Description: Shares

Transaction: Buy

Trading date: November 19, 2007

Market: OMX Nordic Exchange Copenhagen A/S

Number: 150

Market value: DKK 46,875

Name:  Amalie Munch-Jensen

Reason: Daughter of Board Member Hans Henrik Munch-Jensen

Issuer: Genmab A/S

ID code/ ISIN: DK0010272202

Description: Shares

Transaction: Buy

Trading date: November 19, 2007

Market: OMX Nordic Exchange Copenhagen A/S

Number: 150

Market value: DKK 46,875