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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549



FORM 6-K


REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE MONTH OF MAY 2024


COMMISSION FILE NUMBER 001-38976

Genmab A/S
(Exact name of Registrant as specified in its charter)

Carl Jacobsens Vej 30

2500 Valby

Denmark

+45 70 20 27 28
(Address of principal executive offices)


Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F  Form 40-F 

This report on Form 6-K shall be deemed to be incorporated by reference in Genmab A/S’s registration statements on Form S-8 (File No. 333-232693, 333-253519, 333-262970 and 333-277273) and to be a part thereof from the date on which this report is filed, to the extent not superseded by documents or reports subsequently filed or furnished.


SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

nthony

GENMAB A/S

BY:

/s/ Anthony Pagano

Name: Anthony Pagano

Title: Executive Vice President & Chief Financial Officer

DATE: MAY 21, 2024


EXHIBIT INDEX

O

Exhibit

Description of Exhibit

99.1

Company Announcement Dated May 21, 2024: Transactions in Connection with Share Buy-back Program

99.1(a)

Appendix Share buyback program – Specification for May 13 – May 17, 2024


Exhibit 99.1

Graphic

Transactions in Connection with Share Buy-back Program

Company Announcement

COPENHAGEN, Denmark; May 21, 2024 – Genmab A/S (Nasdaq: GMAB). On March 15, 2024, Genmab announced the initiation of a share buy-back program to repurchase up to DKK 3.5 billion worth of shares.

The share buy-back program is expected to be completed no later than December 16, 2024.

The following transactions were executed under the program from May 13, 2024 to May 17, 2024:

Trading Platform

No. of shares

Average price (DKK)

Total value (DKK)

Accumulated through

last announcement

689,655

 

1,393,466,215.08

May 13, 2024

XCSE

8,560

1,985.17

CEUX

6,229

1,984.75

AQEU

841

1,984.14

TQEX

922

1,984.09

Total

16,552

1,984.90

32,854,031.70

May 14, 2024

XCSE

10,241

2,028.31

CEUX

5,642

2,030.04

AQEU

767

2,031.60

TQEX

1,131

2,028.54

Total

17,781

2,029.01

36,077,876.60

May 15, 2024

XCSE

CEUX

AQEU

TQEX

Total

0

0.00

0.00

May 16, 2024

XCSE

CEUX

AQEU

TQEX

Total

0

0.00

0.00

May 17, 2024

XCSE

CEUX

AQEU

TQEX

Total

0

0.00

0.00

Total

34,333

68,931,908.30

Accumulated under the program

723,998

 

1,462,398,123.38

Details of each transaction are included as an appendix to this announcement.

Genmab A/S

Tel: +45 7020 2728

Company Announcement no. 37

Carl Jacobsens Vej 30

Fax: +45 7020 2729

Page 1/2

2500 Valby, Denmark

www.genmab.com

CVR no. 2102 3884

LEI Code 529900MTJPDPE4MHJ122


Graphic

Transactions in Connection with Share Buy-back Program

Following these transactions, Genmab holds 1,573,136 shares as treasury shares, corresponding to 2.38% of the total share capital and voting rights.

The share buy-back program is undertaken in accordance with Regulation (EU) No. 596/2014 (‘MAR’) and the Commission Delegated Regulation (EU) 2016/1052, also referred to as the “Safe Harbour Regulation.” Further details on the terms of the share buy-back program can be found in our company announcement no. 22 dated March 15, 2024.

About Genmab

Genmab is an international biotechnology company with a core purpose guiding its unstoppable team to strive towards improving the lives of patients through innovative and differentiated antibody therapeutics. For 25 years, its passionate, innovative and collaborative team has invented next-generation antibody technology platforms and leveraged translational, quantitative, and data sciences, resulting in a proprietary pipeline including bispecific T-cell engagers, next-generation immune checkpoint modulators, effector function enhanced antibodies, and antibody-drug conjugates. To help develop and deliver novel antibody therapies to patients, Genmab has formed 20+ strategic partnerships with biotechnology and pharmaceutical companies. By 2030, Genmab’s vision is to transform the lives of people with cancer and other serious diseases with knock-your-socks-off (KYSO®) antibody medicines.

Established in 1999, Genmab is headquartered in Copenhagen, Denmark with locations in Utrecht, the Netherlands, Princeton, New Jersey, U.S., and Tokyo, Japan. For more information, please visit Genmab.com and follow us on LinkedIn and X.


Contact:
Marisol Peron, Senior Vice President, Global Communications & Corporate Affairs

T: +1 609 524 0065; E: mmp@genmab.com

Andrew Carlsen, Vice President, Head of Investor Relations

T: +45 3377 9558; E: acn@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 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 www.genmab.com and the risk factors included in Genmab’s most recent Annual Report on Form 20-F and other filings with the U.S. Securities and Exchange Commission (SEC), which are available at www.sec.gov. 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®; HexaBody®; DuoHexaBody®, HexElect® and KYSO®.

Genmab A/S

Tel: +45 7020 2728

Company Announcement no. 37

Carl Jacobsens Vej 30

Fax: +45 7020 2729

Page 2/2

2500 Valby, Denmark

www.genmab.com

CVR no. 2102 3884

LEI Code 529900MTJPDPE4MHJ122


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

Issuer

Date

Time CEST

Price (DKK)

Quantity

Venue

GENMAB A/S

13/05/2024

09:00:01

2,002.00

53

XCSE

GENMAB A/S

13/05/2024

09:00:01

2,002.00

53

XCSE

GENMAB A/S

13/05/2024

09:00:01

2,002.00

9

XCSE

GENMAB A/S

13/05/2024

09:01:42

2,001.00

36

XCSE

GENMAB A/S

13/05/2024

09:02:02

2,000.00

39

XCSE

GENMAB A/S

13/05/2024

09:07:32

1,982.00

37

XCSE

GENMAB A/S

13/05/2024

09:07:32

1,982.00

28

AQEU

GENMAB A/S

13/05/2024

09:07:32

1,982.00

10

XCSE

GENMAB A/S

13/05/2024

09:10:23

1,979.00

35

XCSE

GENMAB A/S

13/05/2024

09:10:23

1,976.50

41

CEUX

GENMAB A/S

13/05/2024

09:11:35

1,978.00

12

XCSE

GENMAB A/S

13/05/2024

09:11:35

1,978.00

45

XCSE

GENMAB A/S

13/05/2024

09:11:35

1,975.50

58

CEUX

GENMAB A/S

13/05/2024

09:12:54

1,980.00

42

XCSE

GENMAB A/S

13/05/2024

09:12:54

1,980.00

4

XCSE

GENMAB A/S

13/05/2024

09:14:18

1,985.00

50

AQEU

GENMAB A/S

13/05/2024

09:14:18

1,985.00

6

AQEU

GENMAB A/S

13/05/2024

09:14:43

1,985.00

52

XCSE

GENMAB A/S

13/05/2024

09:14:43

1,985.00

2

XCSE

GENMAB A/S

13/05/2024

09:15:22

1,988.00

29

CEUX

GENMAB A/S

13/05/2024

09:15:22

1,988.00

23

CEUX

GENMAB A/S

13/05/2024

09:16:33

1,988.50

1

XCSE

GENMAB A/S

13/05/2024

09:16:33

1,988.50

45

XCSE

GENMAB A/S

13/05/2024

09:16:33

1,986.00

52

XCSE

GENMAB A/S

13/05/2024

09:16:33

1,985.50

19

XCSE

GENMAB A/S

13/05/2024

09:16:33

1,985.50

28

XCSE

GENMAB A/S

13/05/2024

09:18:37

1,983.50

32

AQEU

1


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

09:18:37

1,983.50

9

AQEU

GENMAB A/S

13/05/2024

09:19:17

1,982.50

31

CEUX

GENMAB A/S

13/05/2024

09:19:17

1,982.50

11

CEUX

GENMAB A/S

13/05/2024

09:19:53

1,980.50

22

XCSE

GENMAB A/S

13/05/2024

09:19:53

1,980.50

20

XCSE

GENMAB A/S

13/05/2024

09:20:32

1,978.00

46

CEUX

GENMAB A/S

13/05/2024

09:22:10

1,978.00

40

TQEX

GENMAB A/S

13/05/2024

09:22:10

1,978.00

5

TQEX

GENMAB A/S

13/05/2024

09:22:10

1,978.00

2

TQEX

GENMAB A/S

13/05/2024

09:22:11

1,978.00

47

XCSE

GENMAB A/S

13/05/2024

09:22:13

1,975.00

8

TQEX

GENMAB A/S

13/05/2024

09:22:13

1,975.00

6

TQEX

GENMAB A/S

13/05/2024

09:22:13

1,975.00

2

TQEX

GENMAB A/S

13/05/2024

09:22:13

1,975.00

3

TQEX

GENMAB A/S

13/05/2024

09:22:13

1,975.00

20

TQEX

GENMAB A/S

13/05/2024

09:22:13

1,975.00

7

TQEX

GENMAB A/S

13/05/2024

09:23:17

1,975.00

35

XCSE

GENMAB A/S

13/05/2024

09:24:41

1,978.50

49

XCSE

GENMAB A/S

13/05/2024

09:25:31

1,974.50

38

XCSE

GENMAB A/S

13/05/2024

09:26:24

1,974.00

39

CEUX

GENMAB A/S

13/05/2024

09:27:39

1,975.00

46

CEUX

GENMAB A/S

13/05/2024

09:27:56

1,974.50

37

XCSE

GENMAB A/S

13/05/2024

09:28:55

1,975.50

43

XCSE

GENMAB A/S

13/05/2024

09:29:33

1,975.50

16

XCSE

GENMAB A/S

13/05/2024

09:29:33

1,975.50

29

XCSE

GENMAB A/S

13/05/2024

09:30:44

1,975.50

39

AQEU

GENMAB A/S

13/05/2024

09:30:44

1,975.50

1

AQEU

GENMAB A/S

13/05/2024

09:30:44

1,974.00

43

CEUX

2


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

09:30:44

1,974.00

43

XCSE

GENMAB A/S

13/05/2024

09:34:54

1,979.50

4

XCSE

GENMAB A/S

13/05/2024

09:35:04

1,979.50

34

CEUX

GENMAB A/S

13/05/2024

09:35:04

1,979.50

10

CEUX

GENMAB A/S

13/05/2024

09:35:04

1,979.50

8

CEUX

GENMAB A/S

13/05/2024

09:35:04

1,979.50

48

CEUX

GENMAB A/S

13/05/2024

09:35:09

1,979.50

18

XCSE

GENMAB A/S

13/05/2024

09:35:09

1,979.50

34

XCSE

GENMAB A/S

13/05/2024

09:35:09

1,979.50

31

XCSE

GENMAB A/S

13/05/2024

09:35:09

1,979.50

48

CEUX

GENMAB A/S

13/05/2024

09:35:09

1,979.50

28

CEUX

GENMAB A/S

13/05/2024

09:37:19

1,975.50

36

XCSE

GENMAB A/S

13/05/2024

09:37:19

1,975.50

12

XCSE

GENMAB A/S

13/05/2024

09:39:37

1,977.50

33

XCSE

GENMAB A/S

13/05/2024

09:39:37

1,977.50

20

XCSE

GENMAB A/S

13/05/2024

09:41:01

1,974.00

5

XCSE

GENMAB A/S

13/05/2024

09:41:01

1,974.00

58

XCSE

GENMAB A/S

13/05/2024

09:43:24

1,978.50

60

XCSE

GENMAB A/S

13/05/2024

09:43:24

1,978.50

57

XCSE

GENMAB A/S

13/05/2024

09:43:24

1,977.00

25

XCSE

GENMAB A/S

13/05/2024

09:43:24

1,977.00

40

XCSE

GENMAB A/S

13/05/2024

09:47:01

1,978.50

20

AQEU

GENMAB A/S

13/05/2024

09:47:01

1,978.50

33

AQEU

GENMAB A/S

13/05/2024

09:47:01

1,978.50

4

AQEU

GENMAB A/S

13/05/2024

09:47:51

1,978.50

39

CEUX

GENMAB A/S

13/05/2024

09:47:51

1,978.50

9

CEUX

GENMAB A/S

13/05/2024

09:49:04

1,982.00

49

CEUX

GENMAB A/S

13/05/2024

09:49:48

1,980.50

36

CEUX

3


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

09:49:48

1,980.50

56

CEUX

GENMAB A/S

13/05/2024

09:49:48

1,979.50

87

CEUX

GENMAB A/S

13/05/2024

09:55:04

1,978.50

26

AQEU

GENMAB A/S

13/05/2024

09:55:04

1,978.50

26

AQEU

GENMAB A/S

13/05/2024

09:55:04

1,978.50

16

AQEU

GENMAB A/S

13/05/2024

09:56:01

1,983.50

61

TQEX

GENMAB A/S

13/05/2024

09:57:03

1,982.00

25

XCSE

GENMAB A/S

13/05/2024

09:58:19

1,983.00

44

TQEX

GENMAB A/S

13/05/2024

09:59:11

1,980.50

23

XCSE

GENMAB A/S

13/05/2024

09:59:11

1,980.50

38

XCSE

GENMAB A/S

13/05/2024

10:00:06

1,980.00

57

XCSE

GENMAB A/S

13/05/2024

10:03:36

1,982.50

36

CEUX

GENMAB A/S

13/05/2024

10:03:36

1,982.00

30

XCSE

GENMAB A/S

13/05/2024

10:03:36

1,982.00

2

AQEU

GENMAB A/S

13/05/2024

10:03:36

1,982.00

11

CEUX

GENMAB A/S

13/05/2024

10:03:36

1,982.00

11

CEUX

GENMAB A/S

13/05/2024

10:03:37

1,982.00

24

XCSE

GENMAB A/S

13/05/2024

10:03:37

1,982.00

10

XCSE

GENMAB A/S

13/05/2024

10:04:50

1,983.50

23

XCSE

GENMAB A/S

13/05/2024

10:04:50

1,983.50

16

XCSE

GENMAB A/S

13/05/2024

10:04:50

1,983.50

7

XCSE

GENMAB A/S

13/05/2024

10:04:50

1,983.50

23

XCSE

GENMAB A/S

13/05/2024

10:06:23

1,982.00

1

CEUX

GENMAB A/S

13/05/2024

10:06:23

1,982.00

44

CEUX

GENMAB A/S

13/05/2024

10:07:24

1,981.00

42

XCSE

GENMAB A/S

13/05/2024

10:08:21

1,982.00

24

XCSE

GENMAB A/S

13/05/2024

10:10:04

1,980.00

38

XCSE

GENMAB A/S

13/05/2024

10:10:04

1,980.00

29

XCSE

4


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

10:14:49

1,981.00

51

XCSE

GENMAB A/S

13/05/2024

10:14:49

1,981.00

7

AQEU

GENMAB A/S

13/05/2024

10:14:49

1,981.00

46

CEUX

GENMAB A/S

13/05/2024

10:14:49

1,981.00

7

TQEX

GENMAB A/S

13/05/2024

10:15:44

1,979.50

26

CEUX

GENMAB A/S

13/05/2024

10:15:44

1,979.50

36

CEUX

GENMAB A/S

13/05/2024

10:15:46

1,979.00

50

XCSE

GENMAB A/S

13/05/2024

10:15:46

1,979.00

50

XCSE

GENMAB A/S

13/05/2024

10:18:26

1,977.00

65

CEUX

GENMAB A/S

13/05/2024

10:21:13

1,980.50

61

XCSE

GENMAB A/S

13/05/2024

10:23:16

1,979.00

22

CEUX

GENMAB A/S

13/05/2024

10:23:16

1,979.00

22

CEUX

GENMAB A/S

13/05/2024

10:23:16

1,979.00

22

CEUX

GENMAB A/S

13/05/2024

10:23:16

1,979.00

18

CEUX

GENMAB A/S

13/05/2024

10:25:46

1,980.00

22

XCSE

GENMAB A/S

13/05/2024

10:25:46

1,980.00

22

XCSE

GENMAB A/S

13/05/2024

10:25:46

1,980.00

22

XCSE

GENMAB A/S

13/05/2024

10:25:46

1,980.00

1

XCSE

GENMAB A/S

13/05/2024

10:25:46

1,980.00

8

XCSE

GENMAB A/S

13/05/2024

10:29:10

1,981.00

10

CEUX

GENMAB A/S

13/05/2024

10:29:10

1,981.00

8

CEUX

GENMAB A/S

13/05/2024

10:29:42

1,981.50

25

XCSE

GENMAB A/S

13/05/2024

10:29:42

1,981.50

12

XCSE

GENMAB A/S

13/05/2024

10:29:42

1,981.50

4

XCSE

GENMAB A/S

13/05/2024

10:30:20

1,980.50

26

CEUX

GENMAB A/S

13/05/2024

10:30:20

1,980.50

26

CEUX

GENMAB A/S

13/05/2024

10:30:20

1,980.50

14

CEUX

GENMAB A/S

13/05/2024

10:31:32

1,982.50

59

CEUX

5


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

10:32:55

1,983.00

50

CEUX

GENMAB A/S

13/05/2024

10:32:55

1,983.00

28

CEUX

GENMAB A/S

13/05/2024

10:36:44

1,984.00

39

CEUX

GENMAB A/S

13/05/2024

10:37:33

1,983.00

8

AQEU

GENMAB A/S

13/05/2024

10:37:33

1,983.00

4

CEUX

GENMAB A/S

13/05/2024

10:37:33

1,983.00

49

CEUX

GENMAB A/S

13/05/2024

10:37:33

1,983.00

58

XCSE

GENMAB A/S

13/05/2024

10:37:33

1,982.50

37

XCSE

GENMAB A/S

13/05/2024

10:37:33

1,982.50

40

XCSE

GENMAB A/S

13/05/2024

10:42:45

1,985.00

8

XCSE

GENMAB A/S

13/05/2024

10:42:45

1,985.00

13

XCSE

GENMAB A/S

13/05/2024

10:42:45

1,985.00

13

XCSE

GENMAB A/S

13/05/2024

10:44:11

1,986.00

50

XCSE

GENMAB A/S

13/05/2024

10:44:11

1,986.00

7

TQEX

GENMAB A/S

13/05/2024

10:44:11

1,986.00

5

CEUX

GENMAB A/S

13/05/2024

10:44:11

1,986.00

40

CEUX

GENMAB A/S

13/05/2024

10:44:11

1,986.00

7

CEUX

GENMAB A/S

13/05/2024

10:45:22

1,985.00

25

XCSE

GENMAB A/S

13/05/2024

10:45:22

1,985.00

19

XCSE

GENMAB A/S

13/05/2024

10:45:22

1,985.00

6

XCSE

GENMAB A/S

13/05/2024

10:45:22

1,985.00

13

XCSE

GENMAB A/S

13/05/2024

10:49:19

1,986.50

7

TQEX

GENMAB A/S

13/05/2024

10:49:36

1,986.00

36

CEUX

GENMAB A/S

13/05/2024

10:49:36

1,986.00

1

XCSE

GENMAB A/S

13/05/2024

10:49:49

1,985.00

24

CEUX

GENMAB A/S

13/05/2024

10:49:49

1,985.00

66

CEUX

GENMAB A/S

13/05/2024

10:49:49

1,985.00

24

CEUX

GENMAB A/S

13/05/2024

10:49:49

1,985.00

20

CEUX

6


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

10:49:49

1,984.50

39

XCSE

GENMAB A/S

13/05/2024

10:49:49

1,984.50

22

XCSE

GENMAB A/S

13/05/2024

10:56:17

1,985.50

33

CEUX

GENMAB A/S

13/05/2024

10:56:17

1,985.50

4

CEUX

GENMAB A/S

13/05/2024

10:56:17

1,985.50

35

CEUX

GENMAB A/S

13/05/2024

10:56:17

1,985.50

20

CEUX

GENMAB A/S

13/05/2024

10:56:21

1,984.00

42

AQEU

GENMAB A/S

13/05/2024

10:56:21

1,984.00

1

AQEU

GENMAB A/S

13/05/2024

10:56:21

1,984.00

37

AQEU

GENMAB A/S

13/05/2024

10:56:21

1,984.00

5

AQEU

GENMAB A/S

13/05/2024

10:56:21

1,984.00

2

CEUX

GENMAB A/S

13/05/2024

10:59:33

1,985.50

2

XCSE

GENMAB A/S

13/05/2024

11:00:24

1,985.50

40

XCSE

GENMAB A/S

13/05/2024

11:00:24

1,985.50

2

XCSE

GENMAB A/S

13/05/2024

11:00:24

1,985.50

38

XCSE

GENMAB A/S

13/05/2024

11:03:29

1,985.50

14

TQEX

GENMAB A/S

13/05/2024

11:04:57

1,987.00

3

AQEU

GENMAB A/S

13/05/2024

11:04:57

1,987.00

3

AQEU

GENMAB A/S

13/05/2024

11:04:57

1,987.00

3

AQEU

GENMAB A/S

13/05/2024

11:04:57

1,987.00

3

AQEU

GENMAB A/S

13/05/2024

11:04:57

1,987.00

3

AQEU

GENMAB A/S

13/05/2024

11:04:57

1,987.00

3

AQEU

GENMAB A/S

13/05/2024

11:04:57

1,987.00

34

CEUX

GENMAB A/S

13/05/2024

11:04:57

1,987.00

5

CEUX

GENMAB A/S

13/05/2024

11:04:57

1,987.00

12

CEUX

GENMAB A/S

13/05/2024

11:04:57

1,987.00

41

CEUX

GENMAB A/S

13/05/2024

11:04:57

1,987.00

17

CEUX

GENMAB A/S

13/05/2024

11:04:57

1,987.00

17

CEUX

7


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

11:04:57

1,987.00

6

CEUX

GENMAB A/S

13/05/2024

11:04:57

1,987.00

2

TQEX

GENMAB A/S

13/05/2024

11:04:57

1,987.00

8

AQEU

GENMAB A/S

13/05/2024

11:04:57

1,987.00

16

AQEU

GENMAB A/S

13/05/2024

11:04:57

1,987.00

3

AQEU

GENMAB A/S

13/05/2024

11:08:54

1,988.50

25

XCSE

GENMAB A/S

13/05/2024

11:10:01

1,988.50

24

CEUX

GENMAB A/S

13/05/2024

11:10:01

1,988.50

24

CEUX

GENMAB A/S

13/05/2024

11:12:28

1,989.00

6

AQEU

GENMAB A/S

13/05/2024

11:12:28

1,989.00

42

CEUX

GENMAB A/S

13/05/2024

11:12:28

1,989.00

7

TQEX

GENMAB A/S

13/05/2024

11:12:28

1,989.00

20

XCSE

GENMAB A/S

13/05/2024

11:12:28

1,989.00

26

XCSE

GENMAB A/S

13/05/2024

11:15:39

1,988.00

31

AQEU

GENMAB A/S

13/05/2024

11:15:39

1,988.00

4

CEUX

GENMAB A/S

13/05/2024

11:16:52

1,988.00

15

CEUX

GENMAB A/S

13/05/2024

11:17:21

1,988.50

10

CEUX

GENMAB A/S

13/05/2024

11:17:21

1,988.50

18

CEUX

GENMAB A/S

13/05/2024

11:17:21

1,988.50

5

XCSE

GENMAB A/S

13/05/2024

11:17:48

1,988.00

21

XCSE

GENMAB A/S

13/05/2024

11:17:48

1,988.00

4

XCSE

GENMAB A/S

13/05/2024

11:17:48

1,988.00

44

XCSE

GENMAB A/S

13/05/2024

11:17:48

1,987.50

39

CEUX

GENMAB A/S

13/05/2024

11:17:48

1,987.50

40

CEUX

GENMAB A/S

13/05/2024

11:17:48

1,987.50

6

CEUX

GENMAB A/S

13/05/2024

11:17:48

1,986.50

40

XCSE

GENMAB A/S

13/05/2024

11:17:48

1,986.50

3

XCSE

GENMAB A/S

13/05/2024

11:17:50

1,986.50

16

XCSE

8


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

11:17:50

1,986.00

22

AQEU

GENMAB A/S

13/05/2024

11:17:50

1,986.00

37

AQEU

GENMAB A/S

13/05/2024

11:26:02

1,982.00

25

XCSE

GENMAB A/S

13/05/2024

11:26:02

1,982.00

62

XCSE

GENMAB A/S

13/05/2024

11:28:21

1,982.00

15

CEUX

GENMAB A/S

13/05/2024

11:28:21

1,982.00

34

CEUX

GENMAB A/S

13/05/2024

11:28:21

1,982.00

11

CEUX

GENMAB A/S

13/05/2024

11:28:21

1,982.00

4

CEUX

GENMAB A/S

13/05/2024

11:32:12

1,982.00

24

XCSE

GENMAB A/S

13/05/2024

11:32:57

1,982.00

21

XCSE

GENMAB A/S

13/05/2024

11:32:57

1,982.00

3

XCSE

GENMAB A/S

13/05/2024

11:32:57

1,982.00

17

XCSE

GENMAB A/S

13/05/2024

11:32:57

1,982.00

27

CEUX

GENMAB A/S

13/05/2024

11:32:57

1,982.00

3

CEUX

GENMAB A/S

13/05/2024

11:32:57

1,982.00

9

XCSE

GENMAB A/S

13/05/2024

11:32:57

1,982.00

28

XCSE

GENMAB A/S

13/05/2024

11:38:16

1,986.00

25

XCSE

GENMAB A/S

13/05/2024

11:38:16

1,986.00

5

XCSE

GENMAB A/S

13/05/2024

11:38:16

1,986.00

20

XCSE

GENMAB A/S

13/05/2024

11:38:16

1,986.00

5

XCSE

GENMAB A/S

13/05/2024

11:38:16

1,986.00

12

XCSE

GENMAB A/S

13/05/2024

11:38:16

1,986.00

8

XCSE

GENMAB A/S

13/05/2024

11:38:16

1,986.00

1

XCSE

GENMAB A/S

13/05/2024

11:38:16

1,986.00

39

CEUX

GENMAB A/S

13/05/2024

11:39:42

1,985.50

78

XCSE

GENMAB A/S

13/05/2024

11:43:10

1,987.00

23

XCSE

GENMAB A/S

13/05/2024

11:43:10

1,987.00

23

XCSE

GENMAB A/S

13/05/2024

11:43:10

1,987.00

10

XCSE

9


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

11:43:10

1,987.00

23

CEUX

GENMAB A/S

13/05/2024

11:45:26

1,987.00

23

CEUX

GENMAB A/S

13/05/2024

11:45:26

1,987.00

23

CEUX

GENMAB A/S

13/05/2024

11:45:26

1,987.00

15

CEUX

GENMAB A/S

13/05/2024

11:49:32

1,988.00

8

AQEU

GENMAB A/S

13/05/2024

11:49:32

1,988.00

53

CEUX

GENMAB A/S

13/05/2024

11:49:32

1,988.00

58

XCSE

GENMAB A/S

13/05/2024

11:49:32

1,987.00

11

CEUX

GENMAB A/S

13/05/2024

11:49:32

1,987.00

50

CEUX

GENMAB A/S

13/05/2024

11:49:32

1,987.00

2

CEUX

GENMAB A/S

13/05/2024

11:54:54

1,989.00

35

XCSE

GENMAB A/S

13/05/2024

11:54:54

1,989.00

32

XCSE

GENMAB A/S

13/05/2024

11:54:54

1,988.50

68

CEUX

GENMAB A/S

13/05/2024

12:00:21

1,989.50

34

CEUX

GENMAB A/S

13/05/2024

12:00:34

1,989.00

15

CEUX

GENMAB A/S

13/05/2024

12:00:34

1,989.00

3

CEUX

GENMAB A/S

13/05/2024

12:00:34

1,989.00

8

CEUX

GENMAB A/S

13/05/2024

12:00:34

1,989.00

26

CEUX

GENMAB A/S

13/05/2024

12:00:34

1,989.00

18

CEUX

GENMAB A/S

13/05/2024

12:04:10

1,989.50

34

CEUX

GENMAB A/S

13/05/2024

12:04:10

1,989.50

1

CEUX

GENMAB A/S

13/05/2024

12:05:50

1,989.50

38

CEUX

GENMAB A/S

13/05/2024

12:07:01

1,989.50

32

XCSE

GENMAB A/S

13/05/2024

12:07:01

1,989.50

8

XCSE

GENMAB A/S

13/05/2024

12:09:54

1,990.00

39

CEUX

GENMAB A/S

13/05/2024

12:09:55

1,989.50

38

XCSE

GENMAB A/S

13/05/2024

12:17:03

1,990.50

8

XCSE

GENMAB A/S

13/05/2024

12:17:03

1,990.50

28

XCSE

10


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

12:18:16

1,991.50

34

XCSE

GENMAB A/S

13/05/2024

12:20:21

1,992.50

38

CEUX

GENMAB A/S

13/05/2024

12:20:21

1,993.00

41

CEUX

GENMAB A/S

13/05/2024

12:20:21

1,992.00

1

CEUX

GENMAB A/S

13/05/2024

12:20:21

1,992.00

4

CEUX

GENMAB A/S

13/05/2024

12:24:15

1,991.50

41

CEUX

GENMAB A/S

13/05/2024

12:24:15

1,991.50

24

CEUX

GENMAB A/S

13/05/2024

12:24:17

1,990.50

54

CEUX

GENMAB A/S

13/05/2024

12:24:17

1,991.00

2

AQEU

GENMAB A/S

13/05/2024

12:24:17

1,991.00

33

AQEU

GENMAB A/S

13/05/2024

12:24:18

1,990.00

35

CEUX

GENMAB A/S

13/05/2024

12:30:55

1,988.00

2

XCSE

GENMAB A/S

13/05/2024

12:31:10

1,987.00

53

CEUX

GENMAB A/S

13/05/2024

12:34:20

1,986.50

43

XCSE

GENMAB A/S

13/05/2024

12:38:07

1,990.00

37

CEUX

GENMAB A/S

13/05/2024

12:38:07

1,989.50

43

XCSE

GENMAB A/S

13/05/2024

12:38:07

1,989.50

10

XCSE

GENMAB A/S

13/05/2024

12:41:28

1,989.00

7

XCSE

GENMAB A/S

13/05/2024

12:44:38

1,990.00

6

CEUX

GENMAB A/S

13/05/2024

12:44:38

1,990.00

2

CEUX

GENMAB A/S

13/05/2024

12:44:38

1,990.00

8

CEUX

GENMAB A/S

13/05/2024

12:44:38

1,990.00

25

XCSE

GENMAB A/S

13/05/2024

12:44:49

1,990.00

14

CEUX

GENMAB A/S

13/05/2024

12:45:14

1,990.50

10

CEUX

GENMAB A/S

13/05/2024

12:45:14

1,990.50

13

CEUX

GENMAB A/S

13/05/2024

12:45:14

1,990.50

10

CEUX

GENMAB A/S

13/05/2024

12:46:52

1,990.50

3

CEUX

GENMAB A/S

13/05/2024

12:46:52

1,990.50

21

CEUX

11


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

12:48:07

1,990.00

8

AQEU

GENMAB A/S

13/05/2024

12:48:07

1,990.00

28

CEUX

GENMAB A/S

13/05/2024

12:48:43

1,989.50

39

TQEX

GENMAB A/S

13/05/2024

12:48:54

1,988.50

34

XCSE

GENMAB A/S

13/05/2024

12:51:04

1,988.50

37

XCSE

GENMAB A/S

13/05/2024

12:54:54

1,990.00

36

CEUX

GENMAB A/S

13/05/2024

12:54:54

1,990.00

3

CEUX

GENMAB A/S

13/05/2024

12:56:52

1,989.00

8

AQEU

GENMAB A/S

13/05/2024

12:56:52

1,988.50

28

XCSE

GENMAB A/S

13/05/2024

12:56:52

1,988.50

16

XCSE

GENMAB A/S

13/05/2024

12:57:57

1,988.00

44

XCSE

GENMAB A/S

13/05/2024

13:00:31

1,987.00

47

CEUX

GENMAB A/S

13/05/2024

13:00:31

1,986.50

43

TQEX

GENMAB A/S

13/05/2024

13:03:41

1,985.50

41

XCSE

GENMAB A/S

13/05/2024

13:06:43

1,981.50

5

XCSE

GENMAB A/S

13/05/2024

13:07:53

1,981.50

20

XCSE

GENMAB A/S

13/05/2024

13:08:29

1,982.50

26

XCSE

GENMAB A/S

13/05/2024

13:08:29

1,982.50

28

XCSE

GENMAB A/S

13/05/2024

13:08:29

1,982.50

26

XCSE

GENMAB A/S

13/05/2024

13:09:26

1,981.50

85

XCSE

GENMAB A/S

13/05/2024

13:09:27

1,981.00

42

XCSE

GENMAB A/S

13/05/2024

13:17:16

1,985.50

56

XCSE

GENMAB A/S

13/05/2024

13:20:56

1,985.50

5

CEUX

GENMAB A/S

13/05/2024

13:20:56

1,985.50

75

CEUX

GENMAB A/S

13/05/2024

13:23:59

1,985.50

53

XCSE

GENMAB A/S

13/05/2024

13:23:59

1,985.50

8

XCSE

GENMAB A/S

13/05/2024

13:28:44

1,988.00

38

XCSE

GENMAB A/S

13/05/2024

13:28:49

1,987.00

35

CEUX

12


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

13:28:49

1,987.00

36

CEUX

GENMAB A/S

13/05/2024

13:33:38

1,988.50

1

XCSE

GENMAB A/S

13/05/2024

13:33:38

1,988.50

2

XCSE

GENMAB A/S

13/05/2024

13:33:38

1,988.50

11

XCSE

GENMAB A/S

13/05/2024

13:33:38

1,988.50

15

XCSE

GENMAB A/S

13/05/2024

13:33:53

1,988.00

21

XCSE

GENMAB A/S

13/05/2024

13:33:53

1,988.00

5

XCSE

GENMAB A/S

13/05/2024

13:33:53

1,988.00

5

XCSE

GENMAB A/S

13/05/2024

13:33:53

1,988.00

5

XCSE

GENMAB A/S

13/05/2024

13:33:53

1,988.00

9

XCSE

GENMAB A/S

13/05/2024

13:33:53

1,988.00

7

XCSE

GENMAB A/S

13/05/2024

13:33:53

1,988.00

14

XCSE

GENMAB A/S

13/05/2024

13:33:53

1,988.00

26

XCSE

GENMAB A/S

13/05/2024

13:33:53

1,988.00

4

XCSE

GENMAB A/S

13/05/2024

13:38:36

1,986.50

51

TQEX

GENMAB A/S

13/05/2024

13:38:36

1,986.50

1

TQEX

GENMAB A/S

13/05/2024

13:45:38

1,987.50

12

CEUX

GENMAB A/S

13/05/2024

13:45:38

1,987.50

34

CEUX

GENMAB A/S

13/05/2024

13:45:39

1,988.00

8

AQEU

GENMAB A/S

13/05/2024

13:46:22

1,987.00

18

XCSE

GENMAB A/S

13/05/2024

13:46:22

1,987.00

6

AQEU

GENMAB A/S

13/05/2024

13:46:22

1,987.00

41

CEUX

GENMAB A/S

13/05/2024

13:46:22

1,987.00

6

TQEX

GENMAB A/S

13/05/2024

13:46:22

1,987.00

21

XCSE

GENMAB A/S

13/05/2024

13:46:22

1,987.00

5

XCSE

GENMAB A/S

13/05/2024

13:49:17

1,987.00

89

XCSE

GENMAB A/S

13/05/2024

13:49:17

1,987.00

34

CEUX

GENMAB A/S

13/05/2024

13:50:32

1,986.50

49

CEUX

13


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

13:54:33

1,987.00

50

XCSE

GENMAB A/S

13/05/2024

13:54:34

1,986.50

11

CEUX

GENMAB A/S

13/05/2024

13:58:39

1,986.50

41

CEUX

GENMAB A/S

13/05/2024

13:58:39

1,986.50

2

CEUX

GENMAB A/S

13/05/2024

13:58:40

1,986.50

23

XCSE

GENMAB A/S

13/05/2024

13:58:40

1,986.50

50

XCSE

GENMAB A/S

13/05/2024

14:04:44

1,987.50

12

TQEX

GENMAB A/S

13/05/2024

14:04:44

1,987.50

12

TQEX

GENMAB A/S

13/05/2024

14:06:03

1,987.50

36

CEUX

GENMAB A/S

13/05/2024

14:07:34

1,987.50

39

CEUX

GENMAB A/S

13/05/2024

14:07:55

1,986.50

25

XCSE

GENMAB A/S

13/05/2024

14:07:55

1,986.50

19

XCSE

GENMAB A/S

13/05/2024

14:07:55

1,986.50

40

CEUX

GENMAB A/S

13/05/2024

14:07:55

1,986.50

52

CEUX

GENMAB A/S

13/05/2024

14:07:55

1,986.50

6

AQEU

GENMAB A/S

13/05/2024

14:07:55

1,986.50

6

TQEX

GENMAB A/S

13/05/2024

14:07:55

1,986.50

59

TQEX

GENMAB A/S

13/05/2024

14:14:26

1,984.00

49

XCSE

GENMAB A/S

13/05/2024

14:14:26

1,983.50

48

CEUX

GENMAB A/S

13/05/2024

14:14:26

1,983.00

52

CEUX

GENMAB A/S

13/05/2024

14:23:43

1,987.50

53

CEUX

GENMAB A/S

13/05/2024

14:27:36

1,988.00

11

CEUX

GENMAB A/S

13/05/2024

14:27:59

1,988.00

36

CEUX

GENMAB A/S

13/05/2024

14:29:40

1,988.00

25

CEUX

GENMAB A/S

13/05/2024

14:29:47

1,986.50

44

CEUX

GENMAB A/S

13/05/2024

14:29:47

1,987.00

47

XCSE

GENMAB A/S

13/05/2024

14:29:47

1,986.00

55

XCSE

GENMAB A/S

13/05/2024

14:34:34

1,985.50

55

TQEX

14


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

14:37:32

1,985.00

70

CEUX

GENMAB A/S

13/05/2024

14:39:11

1,984.00

9

TQEX

GENMAB A/S

13/05/2024

14:41:34

1,985.50

29

AQEU

GENMAB A/S

13/05/2024

14:41:42

1,984.00

2

TQEX

GENMAB A/S

13/05/2024

14:41:42

1,984.00

5

TQEX

GENMAB A/S

13/05/2024

14:41:42

1,984.00

3

TQEX

GENMAB A/S

13/05/2024

14:46:02

1,985.00

70

XCSE

GENMAB A/S

13/05/2024

14:46:06

1,985.00

11

TQEX

GENMAB A/S

13/05/2024

14:46:52

1,986.50

40

XCSE

GENMAB A/S

13/05/2024

14:47:20

1,987.00

13

TQEX

GENMAB A/S

13/05/2024

14:47:55

1,987.00

8

TQEX

GENMAB A/S

13/05/2024

14:48:05

1,987.00

8

TQEX

GENMAB A/S

13/05/2024

14:48:31

1,987.00

8

TQEX

GENMAB A/S

13/05/2024

14:48:44

1,987.00

8

TQEX

GENMAB A/S

13/05/2024

14:49:41

1,987.00

15

TQEX

GENMAB A/S

13/05/2024

14:49:42

1,987.00

20

XCSE

GENMAB A/S

13/05/2024

14:50:16

1,987.00

21

XCSE

GENMAB A/S

13/05/2024

14:50:16

1,987.00

14

XCSE

GENMAB A/S

13/05/2024

14:51:03

1,985.50

37

CEUX

GENMAB A/S

13/05/2024

14:51:03

1,986.00

25

TQEX

GENMAB A/S

13/05/2024

14:51:03

1,986.00

25

TQEX

GENMAB A/S

13/05/2024

14:51:03

1,986.00

3

TQEX

GENMAB A/S

13/05/2024

14:51:03

1,986.00

15

TQEX

GENMAB A/S

13/05/2024

14:51:03

1,985.50

70

XCSE

GENMAB A/S

13/05/2024

14:51:04

1,985.00

68

CEUX

GENMAB A/S

13/05/2024

14:53:37

1,982.50

8

XCSE

GENMAB A/S

13/05/2024

14:53:37

1,982.50

48

XCSE

GENMAB A/S

13/05/2024

14:58:37

1,981.00

3

CEUX

15


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

14:58:37

1,981.00

52

CEUX

GENMAB A/S

13/05/2024

14:58:37

1,981.00

56

CEUX

GENMAB A/S

13/05/2024

14:58:38

1,980.50

58

CEUX

GENMAB A/S

13/05/2024

15:06:52

1,978.50

46

AQEU

GENMAB A/S

13/05/2024

15:06:52

1,978.50

15

AQEU

GENMAB A/S

13/05/2024

15:09:36

1,977.50

3

XCSE

GENMAB A/S

13/05/2024

15:11:10

1,977.50

15

XCSE

GENMAB A/S

13/05/2024

15:11:17

1,977.50

35

XCSE

GENMAB A/S

13/05/2024

15:11:17

1,977.00

18

TQEX

GENMAB A/S

13/05/2024

15:11:17

1,977.00

39

TQEX

GENMAB A/S

13/05/2024

15:11:18

1,976.50

54

TQEX

GENMAB A/S

13/05/2024

15:11:18

1,976.00

9

XCSE

GENMAB A/S

13/05/2024

15:11:18

1,976.00

50

XCSE

GENMAB A/S

13/05/2024

15:19:56

1,979.00

34

XCSE

GENMAB A/S

13/05/2024

15:20:30

1,978.50

78

CEUX

GENMAB A/S

13/05/2024

15:23:08

1,977.50

48

XCSE

GENMAB A/S

13/05/2024

15:23:08

1,977.50

24

XCSE

GENMAB A/S

13/05/2024

15:27:25

1,981.50

25

XCSE

GENMAB A/S

13/05/2024

15:27:25

1,981.50

13

XCSE

GENMAB A/S

13/05/2024

15:28:02

1,980.50

41

XCSE

GENMAB A/S

13/05/2024

15:28:02

1,980.50

39

CEUX

GENMAB A/S

13/05/2024

15:30:00

1,983.50

10

CEUX

GENMAB A/S

13/05/2024

15:30:00

1,983.50

10

CEUX

GENMAB A/S

13/05/2024

15:30:00

1,983.50

10

CEUX

GENMAB A/S

13/05/2024

15:30:00

1,983.50

24

XCSE

GENMAB A/S

13/05/2024

15:30:00

1,983.50

13

XCSE

GENMAB A/S

13/05/2024

15:30:00

1,983.50

11

XCSE

GENMAB A/S

13/05/2024

15:30:00

1,983.50

30

XCSE

16


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

15:30:00

1,983.50

24

XCSE

GENMAB A/S

13/05/2024

15:30:00

1,983.50

10

CEUX

GENMAB A/S

13/05/2024

15:30:00

1,983.50

10

CEUX

GENMAB A/S

13/05/2024

15:30:00

1,983.50

10

CEUX

GENMAB A/S

13/05/2024

15:30:00

1,982.00

44

XCSE

GENMAB A/S

13/05/2024

15:30:00

1,982.00

44

XCSE

GENMAB A/S

13/05/2024

15:30:00

1,982.00

35

XCSE

GENMAB A/S

13/05/2024

15:30:00

1,981.50

25

XCSE

GENMAB A/S

13/05/2024

15:30:00

1,981.50

2

XCSE

GENMAB A/S

13/05/2024

15:30:00

1,981.50

17

XCSE

GENMAB A/S

13/05/2024

15:30:00

1,981.50

8

XCSE

GENMAB A/S

13/05/2024

15:30:00

1,981.50

17

XCSE

GENMAB A/S

13/05/2024

15:30:00

1,981.50

8

XCSE

GENMAB A/S

13/05/2024

15:30:00

1,981.50

44

XCSE

GENMAB A/S

13/05/2024

15:30:00

1,981.50

7

XCSE

GENMAB A/S

13/05/2024

15:39:38

1,990.50

25

XCSE

GENMAB A/S

13/05/2024

15:39:53

1,991.50

24

XCSE

GENMAB A/S

13/05/2024

15:39:53

1,991.50

47

XCSE

GENMAB A/S

13/05/2024

15:39:53

1,991.50

6

XCSE

GENMAB A/S

13/05/2024

15:40:34

1,990.00

23

XCSE

GENMAB A/S

13/05/2024

15:40:34

1,990.00

2

XCSE

GENMAB A/S

13/05/2024

15:40:34

1,990.00

23

XCSE

GENMAB A/S

13/05/2024

15:40:34

1,990.00

23

XCSE

GENMAB A/S

13/05/2024

15:40:34

1,990.00

9

XCSE

GENMAB A/S

13/05/2024

15:41:15

1,992.50

31

XCSE

GENMAB A/S

13/05/2024

15:41:15

1,992.50

31

XCSE

GENMAB A/S

13/05/2024

15:41:15

1,992.50

14

XCSE

GENMAB A/S

13/05/2024

15:41:15

1,992.50

5

AQEU

17


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

15:41:15

1,992.50

14

AQEU

GENMAB A/S

13/05/2024

15:41:15

1,992.50

5

AQEU

GENMAB A/S

13/05/2024

15:41:15

1,992.50

14

AQEU

GENMAB A/S

13/05/2024

15:41:15

1,992.50

2

AQEU

GENMAB A/S

13/05/2024

15:41:15

1,992.50

19

CEUX

GENMAB A/S

13/05/2024

15:41:15

1,992.50

10

CEUX

GENMAB A/S

13/05/2024

15:41:15

1,992.50

10

CEUX

GENMAB A/S

13/05/2024

15:41:15

1,992.50

5

TQEX

GENMAB A/S

13/05/2024

15:41:15

1,992.50

5

TQEX

GENMAB A/S

13/05/2024

15:41:15

1,992.50

5

TQEX

GENMAB A/S

13/05/2024

15:44:23

1,991.00

74

XCSE

GENMAB A/S

13/05/2024

15:46:08

1,992.50

25

XCSE

GENMAB A/S

13/05/2024

15:46:08

1,992.50

37

XCSE

GENMAB A/S

13/05/2024

15:47:10

1,990.50

26

XCSE

GENMAB A/S

13/05/2024

15:47:10

1,990.50

26

XCSE

GENMAB A/S

13/05/2024

15:47:10

1,990.50

14

XCSE

GENMAB A/S

13/05/2024

15:48:56

1,992.00

6

AQEU

GENMAB A/S

13/05/2024

15:48:56

1,992.00

38

CEUX

GENMAB A/S

13/05/2024

15:48:56

1,992.00

1

CEUX

GENMAB A/S

13/05/2024

15:48:56

1,992.00

2

TQEX

GENMAB A/S

13/05/2024

15:48:56

1,992.00

44

XCSE

GENMAB A/S

13/05/2024

15:48:56

1,991.50

10

XCSE

GENMAB A/S

13/05/2024

15:48:56

1,991.50

40

XCSE

GENMAB A/S

13/05/2024

15:48:56

1,991.50

61

XCSE

GENMAB A/S

13/05/2024

15:48:56

1,991.50

1

XCSE

GENMAB A/S

13/05/2024

15:48:56

1,992.00

4

CEUX

GENMAB A/S

13/05/2024

15:52:13

1,986.00

21

XCSE

GENMAB A/S

13/05/2024

15:52:49

1,986.50

50

CEUX

18


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

15:52:49

1,986.50

31

CEUX

GENMAB A/S

13/05/2024

15:52:49

1,986.50

84

CEUX

GENMAB A/S

13/05/2024

15:54:59

1,986.00

7

XCSE

GENMAB A/S

13/05/2024

15:55:03

1,986.00

25

XCSE

GENMAB A/S

13/05/2024

15:55:03

1,986.00

5

XCSE

GENMAB A/S

13/05/2024

15:55:03

1,986.00

17

XCSE

GENMAB A/S

13/05/2024

15:55:03

1,986.00

20

XCSE

GENMAB A/S

13/05/2024

15:56:05

1,985.00

20

CEUX

GENMAB A/S

13/05/2024

15:56:10

1,985.00

17

CEUX

GENMAB A/S

13/05/2024

15:57:05

1,985.00

24

CEUX

GENMAB A/S

13/05/2024

15:58:01

1,985.00

45

CEUX

GENMAB A/S

13/05/2024

15:58:01

1,985.00

7

TQEX

GENMAB A/S

13/05/2024

15:58:01

1,985.00

50

XCSE

GENMAB A/S

13/05/2024

15:58:01

1,985.00

7

AQEU

GENMAB A/S

13/05/2024

15:59:18

1,984.50

67

CEUX

GENMAB A/S

13/05/2024

16:00:00

1,986.50

64

XCSE

GENMAB A/S

13/05/2024

16:02:32

1,986.50

7

AQEU

GENMAB A/S

13/05/2024

16:02:32

1,986.50

1

AQEU

GENMAB A/S

13/05/2024

16:02:32

1,986.50

55

CEUX

GENMAB A/S

13/05/2024

16:02:32

1,986.50

9

TQEX

GENMAB A/S

13/05/2024

16:02:32

1,986.50

50

XCSE

GENMAB A/S

13/05/2024

16:02:32

1,986.50

11

XCSE

GENMAB A/S

13/05/2024

16:04:05

1,986.50

8

AQEU

GENMAB A/S

13/05/2024

16:04:05

1,986.50

40

CEUX

GENMAB A/S

13/05/2024

16:05:03

1,986.00

16

CEUX

GENMAB A/S

13/05/2024

16:05:03

1,986.00

3

CEUX

GENMAB A/S

13/05/2024

16:05:03

1,986.00

17

CEUX

GENMAB A/S

13/05/2024

16:06:05

1,985.00

22

XCSE

19


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

16:06:05

1,985.00

52

XCSE

GENMAB A/S

13/05/2024

16:06:05

1,985.00

8

XCSE

GENMAB A/S

13/05/2024

16:07:13

1,986.00

26

CEUX

GENMAB A/S

13/05/2024

16:07:13

1,986.00

26

CEUX

GENMAB A/S

13/05/2024

16:07:13

1,986.00

26

CEUX

GENMAB A/S

13/05/2024

16:08:22

1,984.50

5

XCSE

GENMAB A/S

13/05/2024

16:08:22

1,984.50

83

XCSE

GENMAB A/S

13/05/2024

16:10:14

1,985.00

75

CEUX

GENMAB A/S

13/05/2024

16:13:29

1,985.50

4

AQEU

GENMAB A/S

13/05/2024

16:13:29

1,985.50

8

AQEU

GENMAB A/S

13/05/2024

16:13:42

1,985.50

20

CEUX

GENMAB A/S

13/05/2024

16:13:42

1,985.50

16

CEUX

GENMAB A/S

13/05/2024

16:14:08

1,985.00

3

XCSE

GENMAB A/S

13/05/2024

16:14:08

1,985.00

66

XCSE

GENMAB A/S

13/05/2024

16:14:08

1,985.00

62

CEUX

GENMAB A/S

13/05/2024

16:14:08

1,985.00

7

AQEU

GENMAB A/S

13/05/2024

16:14:08

1,985.00

2

AQEU

GENMAB A/S

13/05/2024

16:14:08

1,985.00

10

TQEX

GENMAB A/S

13/05/2024

16:15:33

1,984.50

11

CEUX

GENMAB A/S

13/05/2024

16:15:33

1,984.50

36

CEUX

GENMAB A/S

13/05/2024

16:15:33

1,984.50

45

CEUX

GENMAB A/S

13/05/2024

16:17:56

1,985.00

27

XCSE

GENMAB A/S

13/05/2024

16:17:56

1,985.00

68

XCSE

GENMAB A/S

13/05/2024

16:19:35

1,985.00

89

CEUX

GENMAB A/S

13/05/2024

16:19:38

1,984.00

92

CEUX

GENMAB A/S

13/05/2024

16:23:11

1,983.50

7

AQEU

GENMAB A/S

13/05/2024

16:23:11

1,983.50

44

CEUX

GENMAB A/S

13/05/2024

16:23:11

1,983.50

7

TQEX

20


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

16:23:11

1,983.50

50

CEUX

GENMAB A/S

13/05/2024

16:26:08

1,984.00

33

CEUX

GENMAB A/S

13/05/2024

16:26:08

1,984.00

45

CEUX

GENMAB A/S

13/05/2024

16:26:08

1,984.00

8

CEUX

GENMAB A/S

13/05/2024

16:26:26

1,983.50

48

XCSE

GENMAB A/S

13/05/2024

16:26:27

1,983.50

48

XCSE

GENMAB A/S

13/05/2024

16:26:27

1,983.50

12

XCSE

GENMAB A/S

13/05/2024

16:29:01

1,981.50

7

XCSE

GENMAB A/S

13/05/2024

16:29:01

1,981.50

10

XCSE

GENMAB A/S

13/05/2024

16:29:01

1,981.50

8

CEUX

GENMAB A/S

13/05/2024

16:29:01

1,981.50

8

CEUX

GENMAB A/S

13/05/2024

16:29:01

1,981.50

8

CEUX

GENMAB A/S

13/05/2024

16:29:01

1,981.50

8

CEUX

GENMAB A/S

13/05/2024

16:29:01

1,981.50

3

CEUX

GENMAB A/S

13/05/2024

16:29:01

1,981.50

5

TQEX

GENMAB A/S

13/05/2024

16:29:01

1,981.50

7

XCSE

GENMAB A/S

13/05/2024

16:29:01

1,981.50

7

XCSE

GENMAB A/S

13/05/2024

16:29:59

1,982.00

14

XCSE

GENMAB A/S

13/05/2024

16:29:59

1,982.00

40

XCSE

GENMAB A/S

13/05/2024

16:30:34

1,982.00

61

CEUX

GENMAB A/S

13/05/2024

16:30:34

1,982.00

67

XCSE

GENMAB A/S

13/05/2024

16:30:34

1,982.00

9

CEUX

GENMAB A/S

13/05/2024

16:32:45

1,982.50

26

XCSE

GENMAB A/S

13/05/2024

16:33:42

1,983.00

9

TQEX

GENMAB A/S

13/05/2024

16:33:42

1,983.00

54

CEUX

GENMAB A/S

13/05/2024

16:33:42

1,983.00

61

XCSE

GENMAB A/S

13/05/2024

16:33:43

1,983.00

8

XCSE

GENMAB A/S

13/05/2024

16:36:43

1,982.50

2

AQEU

21


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

16:37:07

1,982.50

65

XCSE

GENMAB A/S

13/05/2024

16:38:22

1,986.00

9

XCSE

GENMAB A/S

13/05/2024

16:38:29

1,986.00

1

AQEU

GENMAB A/S

13/05/2024

16:38:29

1,986.00

14

AQEU

GENMAB A/S

13/05/2024

16:38:29

1,986.00

10

CEUX

GENMAB A/S

13/05/2024

16:38:29

1,986.00

10

CEUX

GENMAB A/S

13/05/2024

16:38:29

1,986.00

9

CEUX

GENMAB A/S

13/05/2024

16:38:29

1,986.00

5

TQEX

GENMAB A/S

13/05/2024

16:38:29

1,986.00

9

XCSE

GENMAB A/S

13/05/2024

16:38:29

1,986.00

9

XCSE

GENMAB A/S

13/05/2024

16:38:29

1,986.00

13

XCSE

GENMAB A/S

13/05/2024

16:38:29

1,986.00

9

XCSE

GENMAB A/S

13/05/2024

16:38:30

1,986.00

9

XCSE

GENMAB A/S

13/05/2024

16:38:31

1,986.00

4

XCSE

GENMAB A/S

13/05/2024

16:38:31

1,986.00

25

XCSE

GENMAB A/S

13/05/2024

16:38:31

1,986.00

25

XCSE

GENMAB A/S

13/05/2024

16:38:31

1,986.00

4

XCSE

GENMAB A/S

13/05/2024

16:38:31

1,986.00

21

XCSE

GENMAB A/S

13/05/2024

16:38:31

1,986.00

4

XCSE

GENMAB A/S

13/05/2024

16:38:31

1,986.00

11

XCSE

GENMAB A/S

13/05/2024

16:39:45

1,989.50

25

XCSE

GENMAB A/S

13/05/2024

16:40:17

1,993.00

24

XCSE

GENMAB A/S

13/05/2024

16:40:17

1,993.00

74

XCSE

GENMAB A/S

13/05/2024

16:41:30

1,991.00

1

AQEU

GENMAB A/S

13/05/2024

16:41:30

1,991.00

21

AQEU

GENMAB A/S

13/05/2024

16:41:30

1,991.00

10

CEUX

GENMAB A/S

13/05/2024

16:41:30

1,991.00

6

CEUX

GENMAB A/S

13/05/2024

16:41:56

1,990.00

49

XCSE

22


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

16:41:56

1,990.00

49

XCSE

GENMAB A/S

13/05/2024

16:41:56

1,990.00

3

XCSE

GENMAB A/S

13/05/2024

16:41:56

1,990.00

36

XCSE

GENMAB A/S

13/05/2024

16:41:56

1,990.00

13

XCSE

GENMAB A/S

13/05/2024

16:41:56

1,990.00

1

XCSE

GENMAB A/S

13/05/2024

16:43:38

1,989.00

13

XCSE

GENMAB A/S

13/05/2024

16:44:37

1,989.50

21

XCSE

GENMAB A/S

13/05/2024

16:44:37

1,989.50

8

XCSE

GENMAB A/S

13/05/2024

16:44:37

1,989.50

111

XCSE

GENMAB A/S

13/05/2024

16:44:37

1,989.50

19

XCSE

GENMAB A/S

13/05/2024

16:44:57

1,989.50

8

XCSE

GENMAB A/S

13/05/2024

16:44:58

1,989.50

2

AQEU

GENMAB A/S

13/05/2024

16:44:58

1,989.50

9

CEUX

GENMAB A/S

13/05/2024

16:44:58

1,989.50

9

CEUX

GENMAB A/S

13/05/2024

16:44:58

1,989.50

9

CEUX

GENMAB A/S

13/05/2024

16:44:58

1,989.50

4

CEUX

GENMAB A/S

13/05/2024

16:44:58

1,989.50

9

CEUX

GENMAB A/S

13/05/2024

16:44:58

1,989.50

3

TQEX

GENMAB A/S

13/05/2024

16:44:58

1,989.50

2

TQEX

GENMAB A/S

13/05/2024

16:44:58

1,989.50

7

XCSE

GENMAB A/S

13/05/2024

16:44:58

1,989.50

1

AQEU

GENMAB A/S

13/05/2024

16:44:58

1,989.50

36

CEUX

GENMAB A/S

13/05/2024

16:45:51

1,990.00

22

XCSE

GENMAB A/S

13/05/2024

16:45:51

1,990.00

8

XCSE

GENMAB A/S

13/05/2024

16:45:51

1,990.00

11

XCSE

GENMAB A/S

13/05/2024

16:45:51

1,990.00

5

TQEX

GENMAB A/S

13/05/2024

16:45:51

1,990.00

21

CEUX

GENMAB A/S

13/05/2024

16:45:51

1,990.00

5

TQEX

23


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

13/05/2024

16:45:51

1,990.00

51

XCSE

GENMAB A/S

13/05/2024

16:45:51

1,990.00

3

XCSE

GENMAB A/S

13/05/2024

16:47:25

1,988.50

38

TQEX

GENMAB A/S

13/05/2024

16:49:15

1,990.50

37

XCSE

GENMAB A/S

13/05/2024

16:49:16

1,990.00

5

TQEX

GENMAB A/S

13/05/2024

16:49:16

1,990.00

33

CEUX

GENMAB A/S

13/05/2024

16:49:16

1,990.00

36

XCSE

GENMAB A/S

13/05/2024

16:49:16

1,990.00

23

XCSE

GENMAB A/S

13/05/2024

16:49:23

1,990.00

79

XCSE

GENMAB A/S

13/05/2024

16:51:20

1,990.00

20

XCSE

GENMAB A/S

13/05/2024

16:51:20

1,990.00

66

XCSE

GENMAB A/S

13/05/2024

16:51:20

1,990.00

35

XCSE

GENMAB A/S

13/05/2024

16:51:20

1,990.00

93

XCSE

GENMAB A/S

13/05/2024

16:52:35

1,989.50

27

XCSE

GENMAB A/S

13/05/2024

16:52:35

1,989.50

39

XCSE

GENMAB A/S

13/05/2024

16:52:35

1,989.50

19

XCSE

GENMAB A/S

13/05/2024

16:52:35

1,989.50

27

XCSE

GENMAB A/S

13/05/2024

16:52:35

1,989.50

27

XCSE

GENMAB A/S

13/05/2024

16:52:35

1,989.50

19

XCSE

GENMAB A/S

13/05/2024

16:52:36

1,989.50

6

XCSE

GENMAB A/S

14/05/2024

09:04:05

2,020.00

43

XCSE

GENMAB A/S

14/05/2024

09:04:05

2,020.00

1

XCSE

GENMAB A/S

14/05/2024

09:04:05

2,020.00

44

XCSE

GENMAB A/S

14/05/2024

09:04:05

2,020.00

42

XCSE

GENMAB A/S

14/05/2024

09:04:05

2,020.00

2

XCSE

GENMAB A/S

14/05/2024

09:04:05

2,020.00

15

XCSE

GENMAB A/S

14/05/2024

09:04:05

2,020.00

7

XCSE

GENMAB A/S

14/05/2024

09:04:59

2,016.00

87

XCSE

24


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

09:04:59

2,016.00

83

XCSE

GENMAB A/S

14/05/2024

09:05:14

2,013.00

42

XCSE

GENMAB A/S

14/05/2024

09:05:14

2,013.00

32

XCSE

GENMAB A/S

14/05/2024

09:09:21

2,021.00

23

XCSE

GENMAB A/S

14/05/2024

09:09:21

2,021.00

60

XCSE

GENMAB A/S

14/05/2024

09:10:24

2,020.00

23

XCSE

GENMAB A/S

14/05/2024

09:10:24

2,020.00

22

XCSE

GENMAB A/S

14/05/2024

09:10:24

2,020.00

8

XCSE

GENMAB A/S

14/05/2024

09:10:24

2,020.00

23

XCSE

GENMAB A/S

14/05/2024

09:10:24

2,020.00

9

XCSE

GENMAB A/S

14/05/2024

09:13:57

2,020.00

99

XCSE

GENMAB A/S

14/05/2024

09:13:57

2,020.00

35

CEUX

GENMAB A/S

14/05/2024

09:13:57

2,020.00

15

CEUX

GENMAB A/S

14/05/2024

09:13:57

2,020.00

75

CEUX

GENMAB A/S

14/05/2024

09:13:57

2,020.00

34

CEUX

GENMAB A/S

14/05/2024

09:15:53

2,017.00

39

XCSE

GENMAB A/S

14/05/2024

09:15:53

2,017.00

43

XCSE

GENMAB A/S

14/05/2024

09:17:18

2,015.00

32

CEUX

GENMAB A/S

14/05/2024

09:17:18

2,014.00

2

CEUX

GENMAB A/S

14/05/2024

09:17:18

2,014.00

64

CEUX

GENMAB A/S

14/05/2024

09:17:18

2,015.00

23

CEUX

GENMAB A/S

14/05/2024

09:17:18

2,015.00

15

CEUX

GENMAB A/S

14/05/2024

09:17:18

2,013.00

39

TQEX

GENMAB A/S

14/05/2024

09:20:15

2,025.00

39

XCSE

GENMAB A/S

14/05/2024

09:20:15

2,025.00

58

XCSE

GENMAB A/S

14/05/2024

09:20:15

2,025.00

6

XCSE

GENMAB A/S

14/05/2024

09:20:15

2,025.00

23

CEUX

GENMAB A/S

14/05/2024

09:20:15

2,025.00

44

CEUX

25


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

09:24:18

2,023.00

23

XCSE

GENMAB A/S

14/05/2024

09:24:18

2,023.00

40

XCSE

GENMAB A/S

14/05/2024

09:44:39

2,033.00

2

AQEU

GENMAB A/S

14/05/2024

09:44:39

2,033.00

9

CEUX

GENMAB A/S

14/05/2024

09:44:39

2,033.00

9

CEUX

GENMAB A/S

14/05/2024

09:44:39

2,033.00

9

CEUX

GENMAB A/S

14/05/2024

09:44:39

2,033.00

9

CEUX

GENMAB A/S

14/05/2024

09:44:39

2,033.00

3

CEUX

GENMAB A/S

14/05/2024

09:44:39

2,033.00

5

TQEX

GENMAB A/S

14/05/2024

09:44:39

2,033.00

5

TQEX

GENMAB A/S

14/05/2024

09:44:39

2,033.00

6

TQEX

GENMAB A/S

14/05/2024

09:44:39

2,033.00

5

TQEX

GENMAB A/S

14/05/2024

09:44:39

2,033.00

6

TQEX

GENMAB A/S

14/05/2024

09:44:39

2,033.00

5

TQEX

GENMAB A/S

14/05/2024

09:44:39

2,033.00

1

TQEX

GENMAB A/S

14/05/2024

09:44:39

2,033.00

9

XCSE

GENMAB A/S

14/05/2024

09:44:39

2,033.00

9

XCSE

GENMAB A/S

14/05/2024

09:44:39

2,033.00

9

XCSE

GENMAB A/S

14/05/2024

09:44:39

2,033.00

9

XCSE

GENMAB A/S

14/05/2024

09:44:39

2,033.00

3

XCSE

GENMAB A/S

14/05/2024

09:44:39

2,033.00

8

CEUX

GENMAB A/S

14/05/2024

09:46:34

2,035.00

35

XCSE

GENMAB A/S

14/05/2024

09:51:11

2,034.00

55

XCSE

GENMAB A/S

14/05/2024

09:51:11

2,034.00

49

CEUX

GENMAB A/S

14/05/2024

09:51:11

2,034.00

15

XCSE

GENMAB A/S

14/05/2024

09:54:14

2,033.00

64

XCSE

GENMAB A/S

14/05/2024

09:54:14

2,032.00

14

CEUX

GENMAB A/S

14/05/2024

09:54:14

2,032.00

50

CEUX

26


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

09:57:41

2,030.00

70

XCSE

GENMAB A/S

14/05/2024

09:57:41

2,030.00

35

CEUX

GENMAB A/S

14/05/2024

10:06:20

2,034.00

42

CEUX

GENMAB A/S

14/05/2024

10:06:20

2,034.00

38

CEUX

GENMAB A/S

14/05/2024

10:08:43

2,033.00

79

CEUX

GENMAB A/S

14/05/2024

10:09:51

2,033.00

17

XCSE

GENMAB A/S

14/05/2024

10:09:51

2,033.00

50

XCSE

GENMAB A/S

14/05/2024

10:09:51

2,033.00

11

XCSE

GENMAB A/S

14/05/2024

10:09:51

2,033.00

34

TQEX

GENMAB A/S

14/05/2024

10:09:51

2,033.00

37

TQEX

GENMAB A/S

14/05/2024

10:17:28

2,035.00

2

AQEU

GENMAB A/S

14/05/2024

10:17:28

2,035.00

2

AQEU

GENMAB A/S

14/05/2024

10:17:28

2,035.00

2

AQEU

GENMAB A/S

14/05/2024

10:17:28

2,035.00

12

CEUX

GENMAB A/S

14/05/2024

10:17:28

2,035.00

3

CEUX

GENMAB A/S

14/05/2024

10:17:28

2,035.00

15

CEUX

GENMAB A/S

14/05/2024

10:17:28

2,035.00

15

CEUX

GENMAB A/S

14/05/2024

10:17:28

2,035.00

15

CEUX

GENMAB A/S

14/05/2024

10:17:28

2,035.00

7

CEUX

GENMAB A/S

14/05/2024

10:17:28

2,035.00

5

TQEX

GENMAB A/S

14/05/2024

10:17:28

2,035.00

5

TQEX

GENMAB A/S

14/05/2024

10:17:28

2,035.00

21

TQEX

GENMAB A/S

14/05/2024

10:17:28

2,035.00

5

TQEX

GENMAB A/S

14/05/2024

10:17:28

2,035.00

5

TQEX

GENMAB A/S

14/05/2024

10:17:28

2,035.00

8

AQEU

GENMAB A/S

14/05/2024

10:17:28

2,035.00

15

XCSE

GENMAB A/S

14/05/2024

10:17:28

2,035.00

15

XCSE

GENMAB A/S

14/05/2024

10:17:28

2,035.00

14

XCSE

27


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

10:17:28

2,035.00

15

XCSE

GENMAB A/S

14/05/2024

10:17:28

2,035.00

14

XCSE

GENMAB A/S

14/05/2024

10:17:28

2,035.00

20

CEUX

GENMAB A/S

14/05/2024

10:17:28

2,035.00

5

TQEX

GENMAB A/S

14/05/2024

10:20:24

2,031.00

11

XCSE

GENMAB A/S

14/05/2024

10:20:24

2,031.00

70

XCSE

GENMAB A/S

14/05/2024

10:20:24

2,031.00

77

CEUX

GENMAB A/S

14/05/2024

10:41:11

2,039.00

77

CEUX

GENMAB A/S

14/05/2024

10:41:14

2,038.00

84

XCSE

GENMAB A/S

14/05/2024

10:41:14

2,038.00

36

CEUX

GENMAB A/S

14/05/2024

10:41:14

2,038.00

10

AQEU

GENMAB A/S

14/05/2024

10:41:14

2,038.00

30

AQEU

GENMAB A/S

14/05/2024

10:51:09

2,038.00

68

XCSE

GENMAB A/S

14/05/2024

10:51:09

2,038.00

23

XCSE

GENMAB A/S

14/05/2024

10:51:09

2,038.00

46

XCSE

GENMAB A/S

14/05/2024

10:53:25

2,036.00

59

CEUX

GENMAB A/S

14/05/2024

10:53:25

2,037.00

27

CEUX

GENMAB A/S

14/05/2024

10:53:25

2,037.00

27

CEUX

GENMAB A/S

14/05/2024

10:53:25

2,037.00

12

CEUX

GENMAB A/S

14/05/2024

10:57:51

2,037.00

72

XCSE

GENMAB A/S

14/05/2024

10:57:51

2,037.00

71

XCSE

GENMAB A/S

14/05/2024

10:57:53

2,036.00

68

XCSE

GENMAB A/S

14/05/2024

10:57:53

2,036.00

41

CEUX

GENMAB A/S

14/05/2024

10:57:53

2,036.00

32

CEUX

GENMAB A/S

14/05/2024

11:01:07

2,033.00

3

XCSE

GENMAB A/S

14/05/2024

11:01:07

2,033.00

65

XCSE

GENMAB A/S

14/05/2024

11:05:36

2,032.00

31

XCSE

GENMAB A/S

14/05/2024

11:05:36

2,032.00

5

XCSE

28


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

11:05:36

2,032.00

26

XCSE

GENMAB A/S

14/05/2024

11:05:36

2,032.00

29

XCSE

GENMAB A/S

14/05/2024

11:05:36

2,031.00

23

TQEX

GENMAB A/S

14/05/2024

11:05:36

2,031.00

17

TQEX

GENMAB A/S

14/05/2024

11:05:36

2,032.00

10

AQEU

GENMAB A/S

14/05/2024

11:05:36

2,032.00

36

CEUX

GENMAB A/S

14/05/2024

11:05:36

2,032.00

13

XCSE

GENMAB A/S

14/05/2024

11:11:58

2,034.00

86

CEUX

GENMAB A/S

14/05/2024

11:11:58

2,034.00

37

TQEX

GENMAB A/S

14/05/2024

11:18:47

2,040.00

12

XCSE

GENMAB A/S

14/05/2024

11:18:47

2,040.00

3

XCSE

GENMAB A/S

14/05/2024

11:18:47

2,040.00

20

XCSE

GENMAB A/S

14/05/2024

11:19:23

2,039.00

33

XCSE

GENMAB A/S

14/05/2024

11:19:23

2,039.00

50

XCSE

GENMAB A/S

14/05/2024

11:19:23

2,039.00

2

AQEU

GENMAB A/S

14/05/2024

11:19:23

2,039.00

9

AQEU

GENMAB A/S

14/05/2024

11:19:23

2,039.00

76

CEUX

GENMAB A/S

14/05/2024

11:19:23

2,039.00

6

TQEX

GENMAB A/S

14/05/2024

11:19:23

2,039.00

3

TQEX

GENMAB A/S

14/05/2024

11:19:23

2,039.00

2

TQEX

GENMAB A/S

14/05/2024

11:22:52

2,039.00

95

XCSE

GENMAB A/S

14/05/2024

11:22:52

2,039.00

43

CEUX

GENMAB A/S

14/05/2024

11:22:52

2,039.00

13

TQEX

GENMAB A/S

14/05/2024

11:22:52

2,039.00

1

CEUX

GENMAB A/S

14/05/2024

11:22:52

2,039.00

35

CEUX

GENMAB A/S

14/05/2024

11:22:52

2,039.00

6

CEUX

GENMAB A/S

14/05/2024

11:24:35

2,039.00

63

XCSE

GENMAB A/S

14/05/2024

11:24:35

2,039.00

8

AQEU

29


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

11:24:35

2,039.00

56

CEUX

GENMAB A/S

14/05/2024

11:24:35

2,039.00

9

TQEX

GENMAB A/S

14/05/2024

11:30:26

2,036.00

77

XCSE

GENMAB A/S

14/05/2024

11:37:44

2,037.00

41

CEUX

GENMAB A/S

14/05/2024

11:37:58

2,036.00

26

XCSE

GENMAB A/S

14/05/2024

11:37:58

2,036.00

76

XCSE

GENMAB A/S

14/05/2024

11:37:58

2,036.00

15

XCSE

GENMAB A/S

14/05/2024

11:37:58

2,036.00

4

XCSE

GENMAB A/S

14/05/2024

11:37:58

2,036.00

7

XCSE

GENMAB A/S

14/05/2024

11:37:58

2,036.00

19

XCSE

GENMAB A/S

14/05/2024

11:37:58

2,036.00

12

XCSE

GENMAB A/S

14/05/2024

11:37:58

2,036.00

1

AQEU

GENMAB A/S

14/05/2024

11:37:58

2,036.00

58

CEUX

GENMAB A/S

14/05/2024

11:37:58

2,036.00

9

AQEU

GENMAB A/S

14/05/2024

11:37:58

2,036.00

10

CEUX

GENMAB A/S

14/05/2024

11:37:58

2,036.00

10

TQEX

GENMAB A/S

14/05/2024

11:45:47

2,040.00

29

XCSE

GENMAB A/S

14/05/2024

11:45:47

2,040.00

43

XCSE

GENMAB A/S

14/05/2024

11:45:47

2,040.00

43

XCSE

GENMAB A/S

14/05/2024

11:45:47

2,040.00

15

XCSE

GENMAB A/S

14/05/2024

11:46:58

2,039.00

42

XCSE

GENMAB A/S

14/05/2024

11:46:58

2,039.00

12

XCSE

GENMAB A/S

14/05/2024

11:46:58

2,039.00

11

XCSE

GENMAB A/S

14/05/2024

11:46:58

2,039.00

19

XCSE

GENMAB A/S

14/05/2024

11:46:58

2,039.00

42

XCSE

GENMAB A/S

14/05/2024

11:46:58

2,039.00

11

XCSE

GENMAB A/S

14/05/2024

11:53:44

2,044.00

49

XCSE

GENMAB A/S

14/05/2024

11:53:44

2,044.00

12

XCSE

30


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

11:55:40

2,044.00

8

XCSE

GENMAB A/S

14/05/2024

11:56:29

2,047.00

109

XCSE

GENMAB A/S

14/05/2024

11:56:29

2,047.00

14

AQEU

GENMAB A/S

14/05/2024

11:56:29

2,047.00

98

CEUX

GENMAB A/S

14/05/2024

11:56:29

2,047.00

15

TQEX

GENMAB A/S

14/05/2024

12:04:40

2,040.00

9

XCSE

GENMAB A/S

14/05/2024

12:04:40

2,040.00

23

XCSE

GENMAB A/S

14/05/2024

12:04:40

2,040.00

10

XCSE

GENMAB A/S

14/05/2024

12:04:40

2,040.00

41

XCSE

GENMAB A/S

14/05/2024

12:04:40

2,040.00

6

AQEU

GENMAB A/S

14/05/2024

12:04:40

2,040.00

6

AQEU

GENMAB A/S

14/05/2024

12:04:40

2,040.00

14

AQEU

GENMAB A/S

14/05/2024

12:04:40

2,040.00

6

AQEU

GENMAB A/S

14/05/2024

12:04:40

2,040.00

38

CEUX

GENMAB A/S

14/05/2024

12:04:40

2,040.00

38

CEUX

GENMAB A/S

14/05/2024

12:04:40

2,040.00

2

CEUX

GENMAB A/S

14/05/2024

12:04:40

2,040.00

6

TQEX

GENMAB A/S

14/05/2024

12:04:40

2,040.00

6

TQEX

GENMAB A/S

14/05/2024

12:04:40

2,040.00

36

CEUX

GENMAB A/S

14/05/2024

12:13:14

2,036.00

15

AQEU

GENMAB A/S

14/05/2024

12:13:14

2,036.00

46

AQEU

GENMAB A/S

14/05/2024

12:13:14

2,036.00

17

TQEX

GENMAB A/S

14/05/2024

12:13:14

2,036.00

5

TQEX

GENMAB A/S

14/05/2024

12:13:14

2,036.00

8

TQEX

GENMAB A/S

14/05/2024

12:13:14

2,036.00

26

TQEX

GENMAB A/S

14/05/2024

12:13:14

2,036.00

7

TQEX

GENMAB A/S

14/05/2024

12:13:18

2,035.00

22

CEUX

GENMAB A/S

14/05/2024

12:14:24

2,035.00

21

CEUX

31


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

12:14:24

2,035.00

19

CEUX

GENMAB A/S

14/05/2024

12:14:24

2,035.00

41

XCSE

GENMAB A/S

14/05/2024

12:14:24

2,035.00

21

XCSE

GENMAB A/S

14/05/2024

12:19:11

2,034.00

48

XCSE

GENMAB A/S

14/05/2024

12:19:25

2,035.00

10

AQEU

GENMAB A/S

14/05/2024

12:19:26

2,035.00

16

AQEU

GENMAB A/S

14/05/2024

12:19:26

2,035.00

26

AQEU

GENMAB A/S

14/05/2024

12:19:26

2,035.00

16

AQEU

GENMAB A/S

14/05/2024

12:20:21

2,033.00

10

XCSE

GENMAB A/S

14/05/2024

12:20:21

2,033.00

21

XCSE

GENMAB A/S

14/05/2024

12:20:21

2,033.00

9

XCSE

GENMAB A/S

14/05/2024

12:20:21

2,033.00

29

XCSE

GENMAB A/S

14/05/2024

12:23:56

2,036.00

19

CEUX

GENMAB A/S

14/05/2024

12:24:00

2,036.00

18

CEUX

GENMAB A/S

14/05/2024

12:24:00

2,036.00

59

XCSE

GENMAB A/S

14/05/2024

12:30:50

2,040.00

11

CEUX

GENMAB A/S

14/05/2024

12:30:50

2,040.00

12

CEUX

GENMAB A/S

14/05/2024

12:30:50

2,040.00

23

CEUX

GENMAB A/S

14/05/2024

12:30:50

2,040.00

4

CEUX

GENMAB A/S

14/05/2024

12:30:50

2,040.00

15

CEUX

GENMAB A/S

14/05/2024

12:30:50

2,039.00

9

CEUX

GENMAB A/S

14/05/2024

12:30:50

2,039.00

1

CEUX

GENMAB A/S

14/05/2024

12:33:46

2,038.00

12

AQEU

GENMAB A/S

14/05/2024

12:33:46

2,038.00

6

CEUX

GENMAB A/S

14/05/2024

12:33:46

2,038.00

77

CEUX

GENMAB A/S

14/05/2024

12:33:46

2,038.00

13

TQEX

GENMAB A/S

14/05/2024

12:33:46

2,038.00

93

XCSE

GENMAB A/S

14/05/2024

12:42:30

2,037.00

60

XCSE

32


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

12:42:30

2,037.00

8

AQEU

GENMAB A/S

14/05/2024

12:42:30

2,037.00

46

CEUX

GENMAB A/S

14/05/2024

12:42:30

2,037.00

9

CEUX

GENMAB A/S

14/05/2024

12:42:30

2,037.00

8

TQEX

GENMAB A/S

14/05/2024

12:42:34

2,036.00

17

AQEU

GENMAB A/S

14/05/2024

12:42:34

2,036.00

34

XCSE

GENMAB A/S

14/05/2024

12:45:26

2,037.00

52

AQEU

GENMAB A/S

14/05/2024

12:45:26

2,037.00

67

CEUX

GENMAB A/S

14/05/2024

12:45:26

2,037.00

37

XCSE

GENMAB A/S

14/05/2024

12:52:46

2,035.00

40

XCSE

GENMAB A/S

14/05/2024

12:52:47

2,035.00

22

XCSE

GENMAB A/S

14/05/2024

12:53:00

2,034.00

40

CEUX

GENMAB A/S

14/05/2024

12:53:00

2,034.00

11

CEUX

GENMAB A/S

14/05/2024

12:53:00

2,034.00

2

CEUX

GENMAB A/S

14/05/2024

12:53:03

2,034.00

17

CEUX

GENMAB A/S

14/05/2024

12:53:13

2,033.00

49

XCSE

GENMAB A/S

14/05/2024

12:57:59

2,034.00

33

CEUX

GENMAB A/S

14/05/2024

12:57:59

2,034.00

35

XCSE

GENMAB A/S

14/05/2024

13:01:57

2,034.00

10

CEUX

GENMAB A/S

14/05/2024

13:03:03

2,034.00

52

CEUX

GENMAB A/S

14/05/2024

13:03:03

2,034.00

65

CEUX

GENMAB A/S

14/05/2024

13:07:11

2,033.00

52

CEUX

GENMAB A/S

14/05/2024

13:07:11

2,033.00

3

CEUX

GENMAB A/S

14/05/2024

13:07:11

2,032.00

17

XCSE

GENMAB A/S

14/05/2024

13:07:11

2,032.00

40

XCSE

GENMAB A/S

14/05/2024

13:07:11

2,032.00

48

XCSE

GENMAB A/S

14/05/2024

13:07:11

2,032.00

5

XCSE

GENMAB A/S

14/05/2024

13:07:11

2,032.00

1

XCSE

33


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

13:07:11

2,032.00

42

XCSE

GENMAB A/S

14/05/2024

13:07:11

2,032.00

1

XCSE

GENMAB A/S

14/05/2024

13:07:11

2,032.00

24

XCSE

GENMAB A/S

14/05/2024

13:11:39

2,030.00

59

CEUX

GENMAB A/S

14/05/2024

13:11:40

2,030.00

61

XCSE

GENMAB A/S

14/05/2024

13:18:24

2,030.00

24

CEUX

GENMAB A/S

14/05/2024

13:18:24

2,030.00

27

CEUX

GENMAB A/S

14/05/2024

13:18:24

2,030.00

24

CEUX

GENMAB A/S

14/05/2024

13:18:24

2,030.00

27

CEUX

GENMAB A/S

14/05/2024

13:18:24

2,030.00

24

CEUX

GENMAB A/S

14/05/2024

13:18:24

2,030.00

22

CEUX

GENMAB A/S

14/05/2024

13:18:24

2,030.00

4

CEUX

GENMAB A/S

14/05/2024

13:22:50

2,029.00

14

CEUX

GENMAB A/S

14/05/2024

13:27:17

2,033.00

14

CEUX

GENMAB A/S

14/05/2024

13:27:17

2,033.00

7

CEUX

GENMAB A/S

14/05/2024

13:27:17

2,033.00

14

CEUX

GENMAB A/S

14/05/2024

13:28:11

2,032.00

7

XCSE

GENMAB A/S

14/05/2024

13:28:58

2,033.00

7

AQEU

GENMAB A/S

14/05/2024

13:28:58

2,033.00

4

AQEU

GENMAB A/S

14/05/2024

13:30:09

2,033.00

40

XCSE

GENMAB A/S

14/05/2024

13:30:09

2,032.00

47

XCSE

GENMAB A/S

14/05/2024

13:30:09

2,032.00

25

XCSE

GENMAB A/S

14/05/2024

13:30:09

2,032.00

25

XCSE

GENMAB A/S

14/05/2024

13:30:09

2,032.00

37

XCSE

GENMAB A/S

14/05/2024

13:30:09

2,032.00

10

AQEU

GENMAB A/S

14/05/2024

13:30:09

2,032.00

7

CEUX

GENMAB A/S

14/05/2024

13:30:09

2,032.00

65

CEUX

GENMAB A/S

14/05/2024

13:30:09

2,032.00

11

TQEX

34


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

13:40:06

2,033.00

5

XCSE

GENMAB A/S

14/05/2024

13:40:06

2,033.00

65

XCSE

GENMAB A/S

14/05/2024

13:40:56

2,033.00

36

CEUX

GENMAB A/S

14/05/2024

13:41:15

2,033.00

21

CEUX

GENMAB A/S

14/05/2024

13:41:15

2,033.00

71

XCSE

GENMAB A/S

14/05/2024

13:45:24

2,034.00

23

CEUX

GENMAB A/S

14/05/2024

13:45:24

2,034.00

6

TQEX

GENMAB A/S

14/05/2024

13:45:24

2,034.00

6

XCSE

GENMAB A/S

14/05/2024

13:46:31

2,033.00

40

CEUX

GENMAB A/S

14/05/2024

13:46:31

2,033.00

17

TQEX

GENMAB A/S

14/05/2024

13:46:31

2,033.00

41

XCSE

GENMAB A/S

14/05/2024

13:46:34

2,033.00

5

CEUX

GENMAB A/S

14/05/2024

13:47:23

2,033.00

11

AQEU

GENMAB A/S

14/05/2024

13:47:23

2,033.00

78

CEUX

GENMAB A/S

14/05/2024

13:47:23

2,033.00

12

TQEX

GENMAB A/S

14/05/2024

13:47:23

2,033.00

87

XCSE

GENMAB A/S

14/05/2024

13:48:15

2,024.00

2

XCSE

GENMAB A/S

14/05/2024

13:48:15

2,024.00

23

XCSE

GENMAB A/S

14/05/2024

13:48:15

2,024.00

37

XCSE

GENMAB A/S

14/05/2024

13:56:37

2,029.00

61

XCSE

GENMAB A/S

14/05/2024

13:56:37

2,028.00

57

XCSE

GENMAB A/S

14/05/2024

13:56:37

2,028.00

38

TQEX

GENMAB A/S

14/05/2024

13:56:37

2,028.00

4

CEUX

GENMAB A/S

14/05/2024

13:56:37

2,028.00

22

TQEX

GENMAB A/S

14/05/2024

13:56:37

2,028.00

3

CEUX

GENMAB A/S

14/05/2024

13:56:37

2,028.00

1

CEUX

GENMAB A/S

14/05/2024

13:56:37

2,028.00

47

CEUX

GENMAB A/S

14/05/2024

14:05:59

2,029.00

5

XCSE

35


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

14:05:59

2,029.00

21

XCSE

GENMAB A/S

14/05/2024

14:05:59

2,029.00

50

XCSE

GENMAB A/S

14/05/2024

14:05:59

2,029.00

2

XCSE

GENMAB A/S

14/05/2024

14:05:59

2,029.00

11

XCSE

GENMAB A/S

14/05/2024

14:09:13

2,028.00

75

XCSE

GENMAB A/S

14/05/2024

14:09:13

2,029.00

17

CEUX

GENMAB A/S

14/05/2024

14:09:13

2,029.00

4

CEUX

GENMAB A/S

14/05/2024

14:09:13

2,029.00

4

CEUX

GENMAB A/S

14/05/2024

14:09:13

2,029.00

17

CEUX

GENMAB A/S

14/05/2024

14:09:13

2,029.00

17

CEUX

GENMAB A/S

14/05/2024

14:09:13

2,029.00

4

CEUX

GENMAB A/S

14/05/2024

14:09:13

2,029.00

4

CEUX

GENMAB A/S

14/05/2024

14:10:51

2,027.00

64

CEUX

GENMAB A/S

14/05/2024

14:10:51

2,027.00

7

CEUX

GENMAB A/S

14/05/2024

14:16:43

2,030.00

6

CEUX

GENMAB A/S

14/05/2024

14:16:43

2,030.00

6

CEUX

GENMAB A/S

14/05/2024

14:16:43

2,030.00

3

CEUX

GENMAB A/S

14/05/2024

14:16:43

2,030.00

1

CEUX

GENMAB A/S

14/05/2024

14:16:43

2,030.00

8

XCSE

GENMAB A/S

14/05/2024

14:16:43

2,030.00

2

XCSE

GENMAB A/S

14/05/2024

14:17:11

2,029.00

26

CEUX

GENMAB A/S

14/05/2024

14:17:11

2,029.00

26

CEUX

GENMAB A/S

14/05/2024

14:17:11

2,029.00

4

CEUX

GENMAB A/S

14/05/2024

14:17:11

2,029.00

22

CEUX

GENMAB A/S

14/05/2024

14:20:19

2,028.00

12

XCSE

GENMAB A/S

14/05/2024

14:20:19

2,029.00

41

AQEU

GENMAB A/S

14/05/2024

14:22:00

2,029.00

1

XCSE

GENMAB A/S

14/05/2024

14:22:00

2,029.00

1

XCSE

36


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

14:22:44

2,030.00

29

CEUX

GENMAB A/S

14/05/2024

14:22:44

2,030.00

5

CEUX

GENMAB A/S

14/05/2024

14:22:44

2,029.00

1

XCSE

GENMAB A/S

14/05/2024

14:22:44

2,029.00

37

XCSE

GENMAB A/S

14/05/2024

14:22:44

2,029.00

33

AQEU

GENMAB A/S

14/05/2024

14:22:44

2,029.00

1

AQEU

GENMAB A/S

14/05/2024

14:22:44

2,029.00

35

CEUX

GENMAB A/S

14/05/2024

14:25:35

2,028.00

1

XCSE

GENMAB A/S

14/05/2024

14:25:35

2,028.00

8

XCSE

GENMAB A/S

14/05/2024

14:25:35

2,028.00

1

XCSE

GENMAB A/S

14/05/2024

14:25:35

2,028.00

8

XCSE

GENMAB A/S

14/05/2024

14:25:35

2,028.00

9

XCSE

GENMAB A/S

14/05/2024

14:25:35

2,028.00

10

XCSE

GENMAB A/S

14/05/2024

14:25:35

2,028.00

1

XCSE

GENMAB A/S

14/05/2024

14:25:35

2,028.00

1

XCSE

GENMAB A/S

14/05/2024

14:25:35

2,028.00

8

XCSE

GENMAB A/S

14/05/2024

14:25:35

2,028.00

11

CEUX

GENMAB A/S

14/05/2024

14:25:35

2,028.00

11

CEUX

GENMAB A/S

14/05/2024

14:25:35

2,028.00

11

CEUX

GENMAB A/S

14/05/2024

14:25:35

2,028.00

11

CEUX

GENMAB A/S

14/05/2024

14:25:35

2,028.00

11

CEUX

GENMAB A/S

14/05/2024

14:25:35

2,028.00

3

CEUX

GENMAB A/S

14/05/2024

14:25:35

2,028.00

5

TQEX

GENMAB A/S

14/05/2024

14:25:35

2,028.00

10

XCSE

GENMAB A/S

14/05/2024

14:25:35

2,028.00

1

XCSE

GENMAB A/S

14/05/2024

14:25:35

2,028.00

1

XCSE

GENMAB A/S

14/05/2024

14:25:35

2,028.00

1

XCSE

GENMAB A/S

14/05/2024

14:25:35

2,028.00

1

XCSE

37


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

14:25:35

2,028.00

6

XCSE

GENMAB A/S

14/05/2024

14:25:35

2,028.00

3

XCSE

GENMAB A/S

14/05/2024

14:25:35

2,028.00

1

XCSE

GENMAB A/S

14/05/2024

14:27:53

2,029.00

18

CEUX

GENMAB A/S

14/05/2024

14:27:53

2,029.00

3

CEUX

GENMAB A/S

14/05/2024

14:27:53

2,029.00

21

CEUX

GENMAB A/S

14/05/2024

14:27:53

2,029.00

12

CEUX

GENMAB A/S

14/05/2024

14:27:53

2,029.00

21

CEUX

GENMAB A/S

14/05/2024

14:27:53

2,029.00

5

CEUX

GENMAB A/S

14/05/2024

14:27:53

2,029.00

1

CEUX

GENMAB A/S

14/05/2024

14:29:50

2,027.00

66

AQEU

GENMAB A/S

14/05/2024

14:29:50

2,028.00

4

CEUX

GENMAB A/S

14/05/2024

14:29:50

2,028.00

62

CEUX

GENMAB A/S

14/05/2024

14:29:50

2,027.00

85

XCSE

GENMAB A/S

14/05/2024

14:37:13

2,026.00

44

XCSE

GENMAB A/S

14/05/2024

14:37:15

2,026.00

6

XCSE

GENMAB A/S

14/05/2024

14:37:15

2,026.00

38

XCSE

GENMAB A/S

14/05/2024

14:37:15

2,026.00

1

XCSE

GENMAB A/S

14/05/2024

14:37:15

2,026.00

1

XCSE

GENMAB A/S

14/05/2024

14:37:15

2,026.00

42

XCSE

GENMAB A/S

14/05/2024

14:37:15

2,026.00

8

XCSE

GENMAB A/S

14/05/2024

14:37:15

2,026.00

9

XCSE

GENMAB A/S

14/05/2024

14:37:15

2,026.00

1

XCSE

GENMAB A/S

14/05/2024

14:44:33

2,025.00

7

XCSE

GENMAB A/S

14/05/2024

14:45:38

2,025.00

10

XCSE

GENMAB A/S

14/05/2024

14:45:51

2,025.00

10

XCSE

GENMAB A/S

14/05/2024

14:48:17

2,025.00

9

AQEU

GENMAB A/S

14/05/2024

14:48:17

2,025.00

50

CEUX

38


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

14:48:17

2,025.00

23

CEUX

GENMAB A/S

14/05/2024

14:48:17

2,025.00

70

CEUX

GENMAB A/S

14/05/2024

14:48:17

2,025.00

58

CEUX

GENMAB A/S

14/05/2024

14:48:17

2,025.00

9

TQEX

GENMAB A/S

14/05/2024

14:48:17

2,025.00

11

XCSE

GENMAB A/S

14/05/2024

14:48:17

2,025.00

71

XCSE

GENMAB A/S

14/05/2024

14:48:17

2,025.00

57

XCSE

GENMAB A/S

14/05/2024

14:48:17

2,025.00

7

XCSE

GENMAB A/S

14/05/2024

14:49:01

2,022.00

77

XCSE

GENMAB A/S

14/05/2024

14:49:01

2,022.00

73

XCSE

GENMAB A/S

14/05/2024

14:54:19

2,025.00

77

XCSE

GENMAB A/S

14/05/2024

14:56:58

2,023.00

48

XCSE

GENMAB A/S

14/05/2024

14:56:58

2,023.00

6

TQEX

GENMAB A/S

14/05/2024

14:56:58

2,023.00

44

CEUX

GENMAB A/S

14/05/2024

15:00:17

2,023.00

17

XCSE

GENMAB A/S

14/05/2024

15:00:17

2,023.00

24

XCSE

GENMAB A/S

14/05/2024

15:00:17

2,023.00

10

XCSE

GENMAB A/S

14/05/2024

15:00:17

2,023.00

24

XCSE

GENMAB A/S

14/05/2024

15:00:17

2,023.00

23

XCSE

GENMAB A/S

14/05/2024

15:00:17

2,023.00

11

XCSE

GENMAB A/S

14/05/2024

15:00:17

2,023.00

17

XCSE

GENMAB A/S

14/05/2024

15:00:17

2,023.00

7

XCSE

GENMAB A/S

14/05/2024

15:06:48

2,025.00

12

XCSE

GENMAB A/S

14/05/2024

15:06:48

2,025.00

12

XCSE

GENMAB A/S

14/05/2024

15:06:48

2,025.00

13

XCSE

GENMAB A/S

14/05/2024

15:06:48

2,025.00

13

XCSE

GENMAB A/S

14/05/2024

15:06:48

2,025.00

12

XCSE

GENMAB A/S

14/05/2024

15:06:48

2,025.00

13

XCSE

39


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

15:06:48

2,025.00

12

XCSE

GENMAB A/S

14/05/2024

15:06:48

2,025.00

6

XCSE

GENMAB A/S

14/05/2024

15:06:48

2,025.00

8

CEUX

GENMAB A/S

14/05/2024

15:06:48

2,025.00

4

CEUX

GENMAB A/S

14/05/2024

15:07:00

2,025.00

15

XCSE

GENMAB A/S

14/05/2024

15:07:00

2,025.00

9

XCSE

GENMAB A/S

14/05/2024

15:07:00

2,025.00

6

XCSE

GENMAB A/S

14/05/2024

15:07:00

2,025.00

42

XCSE

GENMAB A/S

14/05/2024

15:07:00

2,025.00

1

XCSE

GENMAB A/S

14/05/2024

15:07:00

2,025.00

1

CEUX

GENMAB A/S

14/05/2024

15:07:00

2,025.00

50

CEUX

GENMAB A/S

14/05/2024

15:07:00

2,025.00

22

CEUX

GENMAB A/S

14/05/2024

15:07:04

2,024.00

46

TQEX

GENMAB A/S

14/05/2024

15:07:04

2,024.00

18

TQEX

GENMAB A/S

14/05/2024

15:07:04

2,024.00

11

CEUX

GENMAB A/S

14/05/2024

15:07:28

2,023.00

70

XCSE

GENMAB A/S

14/05/2024

15:11:41

2,022.00

15

CEUX

GENMAB A/S

14/05/2024

15:11:46

2,022.00

18

CEUX

GENMAB A/S

14/05/2024

15:11:46

2,022.00

8

XCSE

GENMAB A/S

14/05/2024

15:13:07

2,022.00

31

XCSE

GENMAB A/S

14/05/2024

15:14:30

2,022.00

76

CEUX

GENMAB A/S

14/05/2024

15:16:34

2,022.00

70

XCSE

GENMAB A/S

14/05/2024

15:16:35

2,022.00

23

XCSE

GENMAB A/S

14/05/2024

15:17:43

2,020.00

3

XCSE

GENMAB A/S

14/05/2024

15:17:43

2,020.00

82

XCSE

GENMAB A/S

14/05/2024

15:24:24

2,022.00

56

XCSE

GENMAB A/S

14/05/2024

15:24:24

2,022.00

2

CEUX

GENMAB A/S

14/05/2024

15:24:24

2,022.00

1

CEUX

40


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

15:24:24

2,022.00

56

XCSE

GENMAB A/S

14/05/2024

15:24:24

2,022.00

7

XCSE

GENMAB A/S

14/05/2024

15:27:11

2,021.00

10

XCSE

GENMAB A/S

14/05/2024

15:29:26

2,021.00

3

XCSE

GENMAB A/S

14/05/2024

15:29:46

2,021.00

11

AQEU

GENMAB A/S

14/05/2024

15:29:46

2,021.00

2

AQEU

GENMAB A/S

14/05/2024

15:29:46

2,021.00

44

CEUX

GENMAB A/S

14/05/2024

15:29:46

2,021.00

33

CEUX

GENMAB A/S

14/05/2024

15:29:46

2,021.00

8

CEUX

GENMAB A/S

14/05/2024

15:29:46

2,021.00

8

CEUX

GENMAB A/S

14/05/2024

15:29:46

2,021.00

8

CEUX

GENMAB A/S

14/05/2024

15:29:46

2,021.00

8

CEUX

GENMAB A/S

14/05/2024

15:29:46

2,021.00

7

CEUX

GENMAB A/S

14/05/2024

15:29:46

2,021.00

12

TQEX

GENMAB A/S

14/05/2024

15:29:46

2,021.00

5

TQEX

GENMAB A/S

14/05/2024

15:29:46

2,021.00

12

TQEX

GENMAB A/S

14/05/2024

15:29:46

2,021.00

9

TQEX

GENMAB A/S

14/05/2024

15:29:46

2,021.00

3

TQEX

GENMAB A/S

14/05/2024

15:29:46

2,021.00

5

TQEX

GENMAB A/S

14/05/2024

15:29:46

2,021.00

5

TQEX

GENMAB A/S

14/05/2024

15:29:46

2,021.00

2

TQEX

GENMAB A/S

14/05/2024

15:29:46

2,021.00

72

XCSE

GENMAB A/S

14/05/2024

15:29:46

2,021.00

7

XCSE

GENMAB A/S

14/05/2024

15:29:46

2,021.00

7

XCSE

GENMAB A/S

14/05/2024

15:29:46

2,021.00

7

XCSE

GENMAB A/S

14/05/2024

15:29:46

2,021.00

18

XCSE

GENMAB A/S

14/05/2024

15:29:46

2,021.00

3

XCSE

GENMAB A/S

14/05/2024

15:31:26

2,022.00

15

XCSE

41


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

15:32:56

2,026.00

19

XCSE

GENMAB A/S

14/05/2024

15:32:56

2,026.00

9

XCSE

GENMAB A/S

14/05/2024

15:33:28

2,026.00

10

XCSE

GENMAB A/S

14/05/2024

15:33:28

2,026.00

33

XCSE

GENMAB A/S

14/05/2024

15:33:28

2,026.00

45

XCSE

GENMAB A/S

14/05/2024

15:33:28

2,026.00

43

XCSE

GENMAB A/S

14/05/2024

15:33:28

2,026.00

45

XCSE

GENMAB A/S

14/05/2024

15:33:28

2,026.00

43

XCSE

GENMAB A/S

14/05/2024

15:33:28

2,026.00

24

XCSE

GENMAB A/S

14/05/2024

15:33:28

2,026.00

12

XCSE

GENMAB A/S

14/05/2024

15:39:49

2,023.00

44

XCSE

GENMAB A/S

14/05/2024

15:39:49

2,023.00

9

XCSE

GENMAB A/S

14/05/2024

15:39:49

2,023.00

1

XCSE

GENMAB A/S

14/05/2024

15:39:49

2,023.00

34

XCSE

GENMAB A/S

14/05/2024

15:39:49

2,023.00

10

XCSE

GENMAB A/S

14/05/2024

15:39:49

2,023.00

35

XCSE

GENMAB A/S

14/05/2024

15:42:13

2,023.00

17

CEUX

GENMAB A/S

14/05/2024

15:42:13

2,023.00

8

AQEU

GENMAB A/S

14/05/2024

15:42:13

2,023.00

36

XCSE

GENMAB A/S

14/05/2024

15:43:12

2,023.00

36

CEUX

GENMAB A/S

14/05/2024

15:43:12

2,023.00

25

XCSE

GENMAB A/S

14/05/2024

15:43:15

2,023.00

8

AQEU

GENMAB A/S

14/05/2024

15:43:15

2,023.00

31

CEUX

GENMAB A/S

14/05/2024

15:43:15

2,023.00

23

CEUX

GENMAB A/S

14/05/2024

15:43:15

2,023.00

8

TQEX

GENMAB A/S

14/05/2024

15:43:15

2,023.00

22

XCSE

GENMAB A/S

14/05/2024

15:43:15

2,023.00

3

XCSE

GENMAB A/S

14/05/2024

15:43:15

2,023.00

60

XCSE

42


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

15:43:15

2,023.00

10

XCSE

GENMAB A/S

14/05/2024

15:43:15

2,023.00

17

XCSE

GENMAB A/S

14/05/2024

15:43:15

2,023.00

3

XCSE

GENMAB A/S

14/05/2024

15:43:15

2,023.00

5

XCSE

GENMAB A/S

14/05/2024

15:43:15

2,023.00

20

XCSE

GENMAB A/S

14/05/2024

15:43:15

2,023.00

25

XCSE

GENMAB A/S

14/05/2024

15:43:15

2,023.00

26

XCSE

GENMAB A/S

14/05/2024

15:43:15

2,023.00

9

XCSE

GENMAB A/S

14/05/2024

15:47:57

2,029.00

29

XCSE

GENMAB A/S

14/05/2024

15:47:57

2,029.00

34

XCSE

GENMAB A/S

14/05/2024

15:47:57

2,029.00

8

AQEU

GENMAB A/S

14/05/2024

15:47:57

2,029.00

56

CEUX

GENMAB A/S

14/05/2024

15:47:57

2,029.00

9

TQEX

GENMAB A/S

14/05/2024

15:48:56

2,030.00

24

XCSE

GENMAB A/S

14/05/2024

15:48:56

2,030.00

24

XCSE

GENMAB A/S

14/05/2024

15:48:56

2,030.00

23

XCSE

GENMAB A/S

14/05/2024

15:48:56

2,030.00

1

XCSE

GENMAB A/S

14/05/2024

15:48:56

2,030.00

24

XCSE

GENMAB A/S

14/05/2024

15:49:27

2,029.00

48

XCSE

GENMAB A/S

14/05/2024

15:49:27

2,029.00

25

XCSE

GENMAB A/S

14/05/2024

15:49:27

2,029.00

23

XCSE

GENMAB A/S

14/05/2024

15:49:27

2,029.00

42

XCSE

GENMAB A/S

14/05/2024

15:52:14

2,030.00

1

XCSE

GENMAB A/S

14/05/2024

15:52:29

2,030.00

9

AQEU

GENMAB A/S

14/05/2024

15:52:29

2,030.00

58

CEUX

GENMAB A/S

14/05/2024

15:52:29

2,030.00

9

TQEX

GENMAB A/S

14/05/2024

15:52:29

2,030.00

54

XCSE

GENMAB A/S

14/05/2024

15:52:29

2,030.00

65

XCSE

43


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

15:54:26

2,029.00

62

XCSE

GENMAB A/S

14/05/2024

15:54:26

2,029.00

56

CEUX

GENMAB A/S

14/05/2024

15:54:26

2,029.00

9

TQEX

GENMAB A/S

14/05/2024

15:54:26

2,029.00

8

XCSE

GENMAB A/S

14/05/2024

15:57:35

2,029.00

37

XCSE

GENMAB A/S

14/05/2024

15:57:35

2,029.00

44

XCSE

GENMAB A/S

14/05/2024

15:57:35

2,029.00

50

XCSE

GENMAB A/S

14/05/2024

15:57:35

2,029.00

23

XCSE

GENMAB A/S

14/05/2024

15:57:35

2,029.00

5

AQEU

GENMAB A/S

14/05/2024

15:57:35

2,029.00

34

CEUX

GENMAB A/S

14/05/2024

15:57:35

2,029.00

34

CEUX

GENMAB A/S

14/05/2024

15:57:35

2,029.00

16

CEUX

GENMAB A/S

14/05/2024

15:57:35

2,029.00

34

CEUX

GENMAB A/S

14/05/2024

15:57:35

2,029.00

16

CEUX

GENMAB A/S

14/05/2024

15:57:35

2,029.00

5

TQEX

GENMAB A/S

14/05/2024

15:57:35

2,029.00

3

CEUX

GENMAB A/S

14/05/2024

15:57:35

2,029.00

5

TQEX

GENMAB A/S

14/05/2024

15:57:35

2,029.00

31

TQEX

GENMAB A/S

14/05/2024

15:59:47

2,025.00

3

AQEU

GENMAB A/S

14/05/2024

15:59:47

2,025.00

5

TQEX

GENMAB A/S

14/05/2024

15:59:47

2,025.00

1

TQEX

GENMAB A/S

14/05/2024

16:02:13

2,027.00

23

XCSE

GENMAB A/S

14/05/2024

16:02:45

2,028.00

1

TQEX

GENMAB A/S

14/05/2024

16:02:45

2,028.00

24

XCSE

GENMAB A/S

14/05/2024

16:03:05

2,028.00

13

CEUX

GENMAB A/S

14/05/2024

16:03:05

2,028.00

14

XCSE

GENMAB A/S

14/05/2024

16:03:39

2,027.00

60

TQEX

GENMAB A/S

14/05/2024

16:03:39

2,027.00

7

XCSE

44


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

16:04:26

2,027.00

29

TQEX

GENMAB A/S

14/05/2024

16:04:26

2,027.00

36

CEUX

GENMAB A/S

14/05/2024

16:04:26

2,027.00

2

TQEX

GENMAB A/S

14/05/2024

16:05:21

2,027.00

10

AQEU

GENMAB A/S

14/05/2024

16:05:21

2,027.00

53

XCSE

GENMAB A/S

14/05/2024

16:05:23

2,027.00

21

CEUX

GENMAB A/S

14/05/2024

16:05:23

2,027.00

38

XCSE

GENMAB A/S

14/05/2024

16:05:30

2,027.00

54

CEUX

GENMAB A/S

14/05/2024

16:05:30

2,027.00

2

CEUX

GENMAB A/S

14/05/2024

16:06:14

2,025.00

6

CEUX

GENMAB A/S

14/05/2024

16:06:14

2,025.00

22

XCSE

GENMAB A/S

14/05/2024

16:06:14

2,025.00

55

XCSE

GENMAB A/S

14/05/2024

16:06:14

2,025.00

3

AQEU

GENMAB A/S

14/05/2024

16:06:14

2,025.00

3

AQEU

GENMAB A/S

14/05/2024

16:06:14

2,025.00

5

CEUX

GENMAB A/S

14/05/2024

16:06:14

2,025.00

10

CEUX

GENMAB A/S

14/05/2024

16:06:14

2,025.00

5

TQEX

GENMAB A/S

14/05/2024

16:06:14

2,025.00

8

TQEX

GENMAB A/S

14/05/2024

16:06:14

2,025.00

21

CEUX

GENMAB A/S

14/05/2024

16:06:14

2,025.00

7

CEUX

GENMAB A/S

14/05/2024

16:06:14

2,025.00

2

CEUX

GENMAB A/S

14/05/2024

16:06:14

2,025.00

18

XCSE

GENMAB A/S

14/05/2024

16:06:14

2,025.00

3

AQEU

GENMAB A/S

14/05/2024

16:06:14

2,025.00

3

AQEU

GENMAB A/S

14/05/2024

16:06:14

2,025.00

33

XCSE

GENMAB A/S

14/05/2024

16:06:14

2,025.00

18

XCSE

GENMAB A/S

14/05/2024

16:07:47

2,026.00

23

XCSE

GENMAB A/S

14/05/2024

16:07:47

2,026.00

23

XCSE

45


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

16:07:47

2,026.00

23

XCSE

GENMAB A/S

14/05/2024

16:07:47

2,026.00

5

XCSE

GENMAB A/S

14/05/2024

16:07:47

2,026.00

18

XCSE

GENMAB A/S

14/05/2024

16:07:47

2,026.00

18

XCSE

GENMAB A/S

14/05/2024

16:10:07

2,024.00

22

XCSE

GENMAB A/S

14/05/2024

16:10:07

2,024.00

22

XCSE

GENMAB A/S

14/05/2024

16:10:07

2,024.00

51

XCSE

GENMAB A/S

14/05/2024

16:13:20

2,025.00

4

CEUX

GENMAB A/S

14/05/2024

16:13:20

2,025.00

41

XCSE

GENMAB A/S

14/05/2024

16:13:27

2,025.00

18

CEUX

GENMAB A/S

14/05/2024

16:13:27

2,025.00

7

AQEU

GENMAB A/S

14/05/2024

16:13:27

2,025.00

10

XCSE

GENMAB A/S

14/05/2024

16:13:27

2,025.00

7

XCSE

GENMAB A/S

14/05/2024

16:13:41

2,025.00

8

AQEU

GENMAB A/S

14/05/2024

16:13:41

2,025.00

77

XCSE

GENMAB A/S

14/05/2024

16:13:47

2,024.00

10

AQEU

GENMAB A/S

14/05/2024

16:17:22

2,027.00

112

CEUX

GENMAB A/S

14/05/2024

16:17:22

2,027.00

16

AQEU

GENMAB A/S

14/05/2024

16:17:22

2,027.00

6

TQEX

GENMAB A/S

14/05/2024

16:17:22

2,027.00

10

TQEX

GENMAB A/S

14/05/2024

16:17:22

2,027.00

2

TQEX

GENMAB A/S

14/05/2024

16:17:22

2,027.00

26

XCSE

GENMAB A/S

14/05/2024

16:17:22

2,027.00

100

XCSE

GENMAB A/S

14/05/2024

16:19:20

2,026.00

54

XCSE

GENMAB A/S

14/05/2024

16:19:20

2,026.00

48

XCSE

GENMAB A/S

14/05/2024

16:19:20

2,026.00

71

XCSE

GENMAB A/S

14/05/2024

16:19:20

2,026.00

2

CEUX

GENMAB A/S

14/05/2024

16:19:20

2,026.00

46

CEUX

46


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

16:19:20

2,026.00

8

TQEX

GENMAB A/S

14/05/2024

16:19:20

2,026.00

7

TQEX

GENMAB A/S

14/05/2024

16:20:42

2,026.00

6

AQEU

GENMAB A/S

14/05/2024

16:21:57

2,025.00

44

XCSE

GENMAB A/S

14/05/2024

16:21:57

2,025.00

44

XCSE

GENMAB A/S

14/05/2024

16:21:57

2,025.00

6

TQEX

GENMAB A/S

14/05/2024

16:21:57

2,025.00

44

XCSE

GENMAB A/S

14/05/2024

16:24:35

2,025.00

14

AQEU

GENMAB A/S

14/05/2024

16:24:37

2,025.00

8

CEUX

GENMAB A/S

14/05/2024

16:24:37

2,025.00

6

XCSE

GENMAB A/S

14/05/2024

16:24:42

2,024.00

1

CEUX

GENMAB A/S

14/05/2024

16:24:42

2,024.00

3

AQEU

GENMAB A/S

14/05/2024

16:24:42

2,024.00

23

XCSE

GENMAB A/S

14/05/2024

16:25:04

2,024.00

4

CEUX

GENMAB A/S

14/05/2024

16:25:06

2,024.00

36

CEUX

GENMAB A/S

14/05/2024

16:25:06

2,024.00

6

AQEU

GENMAB A/S

14/05/2024

16:25:08

2,024.00

18

CEUX

GENMAB A/S

14/05/2024

16:25:08

2,024.00

6

AQEU

GENMAB A/S

14/05/2024

16:25:08

2,024.00

58

XCSE

GENMAB A/S

14/05/2024

16:26:57

2,026.00

21

XCSE

GENMAB A/S

14/05/2024

16:26:57

2,026.00

21

XCSE

GENMAB A/S

14/05/2024

16:26:57

2,026.00

21

XCSE

GENMAB A/S

14/05/2024

16:26:57

2,026.00

12

XCSE

GENMAB A/S

14/05/2024

16:26:57

2,025.00

53

XCSE

GENMAB A/S

14/05/2024

16:26:57

2,025.00

2

XCSE

GENMAB A/S

14/05/2024

16:26:57

2,025.00

10

XCSE

GENMAB A/S

14/05/2024

16:26:57

2,025.00

37

XCSE

GENMAB A/S

14/05/2024

16:26:57

2,025.00

4

XCSE

47


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

16:26:57

2,025.00

27

XCSE

GENMAB A/S

14/05/2024

16:30:19

2,024.00

25

XCSE

GENMAB A/S

14/05/2024

16:30:19

2,024.00

22

XCSE

GENMAB A/S

14/05/2024

16:30:19

2,024.00

52

CEUX

GENMAB A/S

14/05/2024

16:30:19

2,024.00

1

TQEX

GENMAB A/S

14/05/2024

16:30:19

2,024.00

7

TQEX

GENMAB A/S

14/05/2024

16:30:19

2,024.00

11

XCSE

GENMAB A/S

14/05/2024

16:30:19

2,024.00

8

CEUX

GENMAB A/S

14/05/2024

16:30:24

2,022.00

49

XCSE

GENMAB A/S

14/05/2024

16:32:41

2,022.00

3

AQEU

GENMAB A/S

14/05/2024

16:33:57

2,023.00

37

XCSE

GENMAB A/S

14/05/2024

16:34:03

2,023.00

13

AQEU

GENMAB A/S

14/05/2024

16:34:03

2,023.00

18

CEUX

GENMAB A/S

14/05/2024

16:34:03

2,023.00

36

XCSE

GENMAB A/S

14/05/2024

16:37:23

2,025.00

9

CEUX

GENMAB A/S

14/05/2024

16:37:23

2,025.00

9

CEUX

GENMAB A/S

14/05/2024

16:37:23

2,025.00

3

CEUX

GENMAB A/S

14/05/2024

16:37:23

2,025.00

9

CEUX

GENMAB A/S

14/05/2024

16:37:23

2,025.00

9

CEUX

GENMAB A/S

14/05/2024

16:37:23

2,025.00

9

CEUX

GENMAB A/S

14/05/2024

16:37:23

2,025.00

9

CEUX

GENMAB A/S

14/05/2024

16:37:23

2,025.00

9

CEUX

GENMAB A/S

14/05/2024

16:37:23

2,025.00

9

CEUX

GENMAB A/S

14/05/2024

16:37:23

2,025.00

5

TQEX

GENMAB A/S

14/05/2024

16:37:23

2,025.00

5

TQEX

GENMAB A/S

14/05/2024

16:37:23

2,025.00

15

TQEX

GENMAB A/S

14/05/2024

16:37:23

2,025.00

3

TQEX

GENMAB A/S

14/05/2024

16:37:23

2,025.00

9

XCSE

48


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

16:37:23

2,025.00

8

XCSE

GENMAB A/S

14/05/2024

16:37:23

2,025.00

24

XCSE

GENMAB A/S

14/05/2024

16:37:23

2,025.00

24

XCSE

GENMAB A/S

14/05/2024

16:37:23

2,025.00

1

XCSE

GENMAB A/S

14/05/2024

16:37:23

2,025.00

36

CEUX

GENMAB A/S

14/05/2024

16:37:23

2,025.00

8

TQEX

GENMAB A/S

14/05/2024

16:37:23

2,025.00

12

XCSE

GENMAB A/S

14/05/2024

16:37:23

2,025.00

10

XCSE

GENMAB A/S

14/05/2024

16:38:42

2,025.00

8

XCSE

GENMAB A/S

14/05/2024

16:39:19

2,026.00

12

CEUX

GENMAB A/S

14/05/2024

16:39:19

2,026.00

2

AQEU

GENMAB A/S

14/05/2024

16:39:19

2,026.00

15

TQEX

GENMAB A/S

14/05/2024

16:39:19

2,026.00

22

XCSE

GENMAB A/S

14/05/2024

16:39:25

2,026.00

86

XCSE

GENMAB A/S

14/05/2024

16:39:25

2,026.00

50

CEUX

GENMAB A/S

14/05/2024

16:39:25

2,026.00

35

CEUX

GENMAB A/S

14/05/2024

16:39:25

2,026.00

12

AQEU

GENMAB A/S

14/05/2024

16:39:26

2,025.00

17

XCSE

GENMAB A/S

14/05/2024

16:39:26

2,025.00

33

XCSE

GENMAB A/S

14/05/2024

16:39:26

2,025.00

52

XCSE

GENMAB A/S

14/05/2024

16:39:26

2,025.00

50

XCSE

GENMAB A/S

14/05/2024

16:39:26

2,025.00

35

XCSE

GENMAB A/S

14/05/2024

16:39:26

2,025.00

17

XCSE

GENMAB A/S

14/05/2024

16:39:26

2,025.00

9

XCSE

GENMAB A/S

14/05/2024

16:39:26

2,025.00

20

XCSE

GENMAB A/S

14/05/2024

16:39:26

2,025.00

20

XCSE

GENMAB A/S

14/05/2024

16:39:26

2,025.00

2

XCSE

GENMAB A/S

14/05/2024

16:43:07

2,025.00

20

CEUX

49


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

16:43:07

2,025.00

31

XCSE

GENMAB A/S

14/05/2024

16:43:10

2,025.00

36

CEUX

GENMAB A/S

14/05/2024

16:43:10

2,025.00

6

AQEU

GENMAB A/S

14/05/2024

16:43:10

2,025.00

37

XCSE

GENMAB A/S

14/05/2024

16:43:31

2,025.00

3

AQEU

GENMAB A/S

14/05/2024

16:43:36

2,025.00

2

CEUX

GENMAB A/S

14/05/2024

16:43:36

2,025.00

12

TQEX

GENMAB A/S

14/05/2024

16:43:36

2,025.00

30

XCSE

GENMAB A/S

14/05/2024

16:43:38

2,025.00

35

CEUX

GENMAB A/S

14/05/2024

16:43:38

2,025.00

34

CEUX

GENMAB A/S

14/05/2024

16:43:38

2,025.00

50

XCSE

GENMAB A/S

14/05/2024

16:44:38

2,025.00

7

CEUX

GENMAB A/S

14/05/2024

16:44:38

2,025.00

24

XCSE

GENMAB A/S

14/05/2024

16:48:01

2,026.00

9

CEUX

GENMAB A/S

14/05/2024

16:48:01

2,026.00

9

CEUX

GENMAB A/S

14/05/2024

16:48:04

2,026.00

9

CEUX

GENMAB A/S

14/05/2024

16:48:04

2,026.00

9

CEUX

GENMAB A/S

14/05/2024

16:48:04

2,026.00

9

CEUX

GENMAB A/S

14/05/2024

16:48:04

2,026.00

3

CEUX

GENMAB A/S

14/05/2024

16:48:04

2,026.00

9

CEUX

GENMAB A/S

14/05/2024

16:48:04

2,026.00

5

TQEX

GENMAB A/S

14/05/2024

16:48:04

2,026.00

9

XCSE

GENMAB A/S

14/05/2024

16:48:05

2,026.00

9

CEUX

GENMAB A/S

14/05/2024

16:48:05

2,026.00

5

TQEX

GENMAB A/S

14/05/2024

16:48:05

2,026.00

9

XCSE

GENMAB A/S

14/05/2024

16:48:07

2,026.00

9

CEUX

GENMAB A/S

14/05/2024

16:48:07

2,026.00

9

XCSE

GENMAB A/S

14/05/2024

16:48:08

2,026.00

9

XCSE

50


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

16:48:12

2,026.00

9

XCSE

GENMAB A/S

14/05/2024

16:49:19

2,026.00

1

AQEU

GENMAB A/S

14/05/2024

16:49:19

2,026.00

8

AQEU

GENMAB A/S

14/05/2024

16:49:19

2,026.00

3

AQEU

GENMAB A/S

14/05/2024

16:49:19

2,026.00

9

CEUX

GENMAB A/S

14/05/2024

16:49:19

2,026.00

9

CEUX

GENMAB A/S

14/05/2024

16:49:19

2,026.00

9

CEUX

GENMAB A/S

14/05/2024

16:49:19

2,026.00

3

CEUX

GENMAB A/S

14/05/2024

16:49:19

2,026.00

5

TQEX

GENMAB A/S

14/05/2024

16:49:19

2,026.00

5

TQEX

GENMAB A/S

14/05/2024

16:49:19

2,026.00

5

TQEX

GENMAB A/S

14/05/2024

16:49:19

2,026.00

9

XCSE

GENMAB A/S

14/05/2024

16:49:19

2,026.00

69

XCSE

GENMAB A/S

14/05/2024

16:49:19

2,026.00

9

XCSE

GENMAB A/S

14/05/2024

16:49:19

2,026.00

16

XCSE

GENMAB A/S

14/05/2024

16:49:19

2,026.00

9

XCSE

GENMAB A/S

14/05/2024

16:49:19

2,026.00

13

XCSE

GENMAB A/S

14/05/2024

16:49:19

2,026.00

9

XCSE

GENMAB A/S

14/05/2024

16:49:19

2,026.00

9

XCSE

GENMAB A/S

14/05/2024

16:49:19

2,026.00

46

XCSE

GENMAB A/S

14/05/2024

16:49:19

2,026.00

2

AQEU

GENMAB A/S

14/05/2024

16:49:19

2,026.00

10

AQEU

GENMAB A/S

14/05/2024

16:49:19

2,026.00

4

AQEU

GENMAB A/S

14/05/2024

16:49:19

2,026.00

1

AQEU

GENMAB A/S

14/05/2024

16:49:19

2,026.00

4

AQEU

GENMAB A/S

14/05/2024

16:49:19

2,026.00

9

CEUX

GENMAB A/S

14/05/2024

16:49:19

2,026.00

9

CEUX

GENMAB A/S

14/05/2024

16:49:19

2,026.00

5

TQEX

51


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024

Graphic

GENMAB A/S

14/05/2024

16:49:19

2,026.00

36

CEUX

GENMAB A/S

14/05/2024

16:49:19

2,026.00

2

AQEU

GENMAB A/S

14/05/2024

16:49:19

2,026.00

8

TQEX

GENMAB A/S

14/05/2024

16:49:19

2,026.00

36

CEUX

GENMAB A/S

14/05/2024

16:49:19

2,026.00

24

TQEX

GENMAB A/S

14/05/2024

16:49:19

2,026.00

7

CEUX

GENMAB A/S

14/05/2024

16:49:19

2,025.00

42

XCSE

GENMAB A/S

14/05/2024

16:50:11

2,023.00

18

TQEX

GENMAB A/S

14/05/2024

16:50:18

2,023.00

55

TQEX

GENMAB A/S

14/05/2024

16:51:30

2,022.00

15

TQEX

GENMAB A/S

14/05/2024

16:51:30

2,022.00

38

XCSE

GENMAB A/S

14/05/2024

16:51:42

2,021.00

21

TQEX

GENMAB A/S

14/05/2024

16:51:42

2,021.00

50

XCSE

52



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