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 JUNE 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333-262970 and 333-277273) and to be a part thereof from the date on which this report is filed, to the extent not superseded by documents or reports subsequently filed or furnished.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: JUNE 10, 2024


EXHIBIT INDEX

O

Exhibit

Description of Exhibit

99.1

Company Announcement Dated June 10, 2024: Transactions in Connection with Share Buy-back Program

99.1(a)

Appendix Share buyback program – Specification for June 3 – June 7, 2024


Exhibit 99.1

Graphic

Transactions in Connection with Share Buy-back Program

Company Announcement

COPENHAGEN, Denmark; June 10, 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 June 3, 2024, to June 7, 2024:

Trading Platform

No. of shares

Average price (DKK)

Total value (DKK)

Accumulated through

last announcement

1,032,421

 

2,061,789,008.64

June 3, 2024

XCSE

207

1,948.32

CEUX

106

1,949.50

AQEU

TQEX

37

1,944.50

Total

350

1,948.27

681,896.01

June 4, 2024

XCSE

337

1,945.96

CEUX

153

1,943.65

AQEU

TQEX

Total

490

1,945.24

953,168.48

June 5, 2024

XCSE

CEUX

AQEU

TQEX

Total

June 6, 2024

XCSE

511

1,943.91

CEUX

427

1,942.57

AQEU

93

1,946.25

TQEX

29

1,940.19

Total

1,060

1,943.47

2,060,080.96

June 7, 2024

XCSE

7,834

1,927.85

CEUX

6,634

1,928.08

AQEU

654

1,929.56

TQEX

1,203

1,929.61

Total

16,325

1,928.14

31,476,890.40

Total

18,225

35,172,035.85

Accumulated under the program

1,050,646

 

2,096,961,044.49

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

Genmab A/S

Tel: +45 7020 2728

Company Announcement no. 41

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 1,899,784 shares as treasury shares, corresponding to 2.87% 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 of guiding its unstoppable team to strive toward improving the lives of patients with 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, antibody-drug conjugates, next-generation immune checkpoint modulators and effector function-enhanced antibodies. 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 international presence across North America, Europe and Asia Pacific. 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 preclinical 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. 41

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 June 3 – June 7, 2024

Graphic

Issuer

Date

Time CEST

Price (DKK)

Quantity

Venue

Genmab A/S

03/06/2024

3:00:28 PM

1,948.5000

35

CEUX

Genmab A/S

03/06/2024

3:04:13 PM

1,944.5000

19

TQEX

Genmab A/S

03/06/2024

3:04:13 PM

1,944.5000

18

TQEX

Genmab A/S

03/06/2024

3:04:13 PM

1,944.0000

38

XCSE

Genmab A/S

03/06/2024

3:18:58 PM

1,950.0000

34

XCSE

Genmab A/S

03/06/2024

3:18:58 PM

1,950.0000

38

CEUX

Genmab A/S

03/06/2024

3:30:11 PM

1,950.0000

7

CEUX

Genmab A/S

03/06/2024

3:30:11 PM

1,950.0000

26

CEUX

Genmab A/S

03/06/2024

3:30:11 PM

1,950.0000

34

XCSE

Genmab A/S

03/06/2024

3:30:11 PM

1,950.0000

53

XCSE

Genmab A/S

03/06/2024

3:34:36 PM

1,947.5000

48

XCSE

Genmab A/S

04/06/2024

3:43:26 PM

1,943.5000

44

XCSE

Genmab A/S

04/06/2024

3:54:00 PM

1,945.0000

36

CEUX

Genmab A/S

04/06/2024

4:02:28 PM

1,946.0000

36

XCSE

Genmab A/S

04/06/2024

4:10:41 PM

1,946.5000

4

XCSE

Genmab A/S

04/06/2024

4:10:41 PM

1,946.5000

46

XCSE

Genmab A/S

04/06/2024

4:22:18 PM

1,942.5000

41

CEUX

Genmab A/S

04/06/2024

4:28:38 PM

1,943.5000

41

CEUX

Genmab A/S

04/06/2024

4:33:47 PM

1,943.5000

35

XCSE

Genmab A/S

04/06/2024

4:38:01 PM

1,947.5000

57

XCSE

Genmab A/S

04/06/2024

4:44:21 PM

1,949.0000

50

XCSE

Genmab A/S

04/06/2024

4:44:21 PM

1,949.0000

5

XCSE

Genmab A/S

04/06/2024

4:49:52 PM

1,945.0000

3

XCSE

Genmab A/S

04/06/2024

4:49:52 PM

1,945.0000

37

XCSE

Genmab A/S

04/06/2024

4:52:23 PM

1,944.0000

20

CEUX

Genmab A/S

04/06/2024

4:53:06 PM

1,943.5000

20

XCSE

Genmab A/S

04/06/2024

4:53:06 PM

1,943.5000

15

CEUX

Genmab A/S

06/06/2024

9:00:10 AM

1,951.0000

37

XCSE

Genmab A/S

06/06/2024

9:00:10 AM

1,951.0000

37

XCSE

Genmab A/S

06/06/2024

9:00:10 AM

1,951.0000

6

XCSE

Genmab A/S

06/06/2024

9:01:46 AM

1,947.5000

18

XCSE

Genmab A/S

06/06/2024

9:01:46 AM

1,947.5000

15

XCSE

Genmab A/S

06/06/2024

9:11:15 AM

1,936.5000

36

CEUX

Genmab A/S

06/06/2024

9:25:12 AM

1,940.0000

34

CEUX

Genmab A/S

06/06/2024

9:28:50 AM

1,939.5000

36

XCSE

Genmab A/S

06/06/2024

9:28:50 AM

1,939.5000

3

XCSE

Genmab A/S

06/06/2024

9:38:47 AM

1,941.5000

56

CEUX

1


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

06/06/2024

9:49:11 AM

1,942.0000

20

XCSE

Genmab A/S

06/06/2024

9:49:11 AM

1,942.0000

26

XCSE

Genmab A/S

06/06/2024

9:58:19 AM

1,945.0000

39

XCSE

Genmab A/S

06/06/2024

9:58:19 AM

1,945.0000

4

XCSE

Genmab A/S

06/06/2024

10:10:29 AM

1,947.5000

36

CEUX

Genmab A/S

06/06/2024

10:15:57 AM

1,948.5000

36

CEUX

Genmab A/S

06/06/2024

10:15:57 AM

1,948.5000

8

CEUX

Genmab A/S

06/06/2024

10:30:32 AM

1,949.0000

36

CEUX

Genmab A/S

06/06/2024

10:52:14 AM

1,947.5000

5

XCSE

Genmab A/S

06/06/2024

10:52:14 AM

1,947.5000

35

XCSE

Genmab A/S

06/06/2024

11:04:28 AM

1,946.0000

39

XCSE

Genmab A/S

06/06/2024

11:04:28 AM

1,946.0000

3

XCSE

Genmab A/S

06/06/2024

11:18:12 AM

1,949.5000

37

AQEU

Genmab A/S

06/06/2024

11:22:14 AM

1,947.0000

11

CEUX

Genmab A/S

06/06/2024

11:22:14 AM

1,947.0000

25

CEUX

Genmab A/S

06/06/2024

2:15:58 PM

1,945.5000

43

AQEU

Genmab A/S

06/06/2024

4:39:25 PM

1,939.5000

45

CEUX

Genmab A/S

06/06/2024

4:43:43 PM

1,940.5000

32

XCSE

Genmab A/S

06/06/2024

4:43:43 PM

1,940.5000

15

XCSE

Genmab A/S

06/06/2024

4:46:07 PM

1,939.0000

45

CEUX

Genmab A/S

06/06/2024

4:48:36 PM

1,939.5000

44

CEUX

Genmab A/S

06/06/2024

4:50:13 PM

1,939.5000

43

XCSE

Genmab A/S

06/06/2024

4:51:55 PM

1,939.0000

4

XCSE

Genmab A/S

06/06/2024

4:53:23 PM

1,939.5000

13

AQEU

Genmab A/S

06/06/2024

4:53:23 PM

1,939.5000

9

TQEX

Genmab A/S

06/06/2024

4:53:23 PM

1,939.5000

14

XCSE

Genmab A/S

06/06/2024

4:53:47 PM

1,940.5000

38

XCSE

Genmab A/S

06/06/2024

4:53:47 PM

1,940.5000

36

XCSE

Genmab A/S

06/06/2024

4:53:47 PM

1,940.5000

6

XCSE

Genmab A/S

06/06/2024

4:53:48 PM

1,940.5000

20

TQEX

Genmab A/S

06/06/2024

4:53:48 PM

1,940.5000

10

CEUX

Genmab A/S

06/06/2024

4:53:48 PM

1,940.5000

5

CEUX

Genmab A/S

07/06/2024

9:03:26 AM

1,948.0000

18

XCSE

Genmab A/S

07/06/2024

9:03:26 AM

1,948.0000

22

XCSE

Genmab A/S

07/06/2024

9:04:19 AM

1,947.0000

41

XCSE

Genmab A/S

07/06/2024

9:05:12 AM

1,945.0000

25

XCSE

Genmab A/S

07/06/2024

9:05:12 AM

1,945.0000

17

XCSE

Genmab A/S

07/06/2024

9:22:28 AM

1,937.5000

47

CEUX

Genmab A/S

07/06/2024

9:22:28 AM

1,937.5000

6

CEUX

2


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

9:34:02 AM

1,933.0000

42

XCSE

Genmab A/S

07/06/2024

9:42:20 AM

1,931.0000

34

CEUX

Genmab A/S

07/06/2024

9:42:20 AM

1,931.0000

2

CEUX

Genmab A/S

07/06/2024

9:44:53 AM

1,930.0000

34

CEUX

Genmab A/S

07/06/2024

9:49:10 AM

1,931.0000

25

CEUX

Genmab A/S

07/06/2024

9:49:10 AM

1,931.0000

8

CEUX

Genmab A/S

07/06/2024

9:49:10 AM

1,931.0000

2

XCSE

Genmab A/S

07/06/2024

9:49:10 AM

1,931.0000

4

XCSE

Genmab A/S

07/06/2024

9:49:47 AM

1,930.5000

39

CEUX

Genmab A/S

07/06/2024

9:49:47 AM

1,930.5000

38

XCSE

Genmab A/S

07/06/2024

9:55:18 AM

1,930.5000

10

CEUX

Genmab A/S

07/06/2024

9:55:18 AM

1,930.5000

30

CEUX

Genmab A/S

07/06/2024

10:00:24 AM

1,932.0000

17

CEUX

Genmab A/S

07/06/2024

10:00:24 AM

1,932.0000

1

CEUX

Genmab A/S

07/06/2024

10:00:37 AM

1,932.0000

16

CEUX

Genmab A/S

07/06/2024

10:00:37 AM

1,932.0000

28

TQEX

Genmab A/S

07/06/2024

10:00:37 AM

1,932.0000

5

TQEX

Genmab A/S

07/06/2024

10:03:22 AM

1,933.0000

1

AQEU

Genmab A/S

07/06/2024

10:03:22 AM

1,933.0000

1

AQEU

Genmab A/S

07/06/2024

10:03:22 AM

1,933.0000

11

AQEU

Genmab A/S

07/06/2024

10:03:22 AM

1,933.0000

1

AQEU

Genmab A/S

07/06/2024

10:03:54 AM

1,933.0000

27

XCSE

Genmab A/S

07/06/2024

10:03:54 AM

1,933.0000

11

XCSE

Genmab A/S

07/06/2024

10:06:25 AM

1,933.0000

14

AQEU

Genmab A/S

07/06/2024

10:06:25 AM

1,933.0000

10

TQEX

Genmab A/S

07/06/2024

10:08:02 AM

1,933.5000

16

TQEX

Genmab A/S

07/06/2024

10:08:02 AM

1,933.5000

6

TQEX

Genmab A/S

07/06/2024

10:08:02 AM

1,933.5000

8

TQEX

Genmab A/S

07/06/2024

10:08:02 AM

1,933.5000

8

TQEX

Genmab A/S

07/06/2024

10:10:08 AM

1,933.0000

3

CEUX

Genmab A/S

07/06/2024

10:10:08 AM

1,933.0000

30

CEUX

Genmab A/S

07/06/2024

10:10:08 AM

1,932.5000

26

TQEX

Genmab A/S

07/06/2024

10:10:08 AM

1,932.5000

13

TQEX

Genmab A/S

07/06/2024

10:10:08 AM

1,932.5000

7

TQEX

Genmab A/S

07/06/2024

10:10:08 AM

1,932.5000

22

TQEX

Genmab A/S

07/06/2024

10:18:44 AM

1,932.5000

35

CEUX

Genmab A/S

07/06/2024

10:18:44 AM

1,932.5000

4

CEUX

Genmab A/S

07/06/2024

10:18:44 AM

1,932.5000

34

CEUX

Genmab A/S

07/06/2024

10:19:26 AM

1,932.0000

70

XCSE

3


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

10:23:09 AM

1,931.5000

6

XCSE

Genmab A/S

07/06/2024

10:23:09 AM

1,931.5000

16

XCSE

Genmab A/S

07/06/2024

10:23:09 AM

1,931.5000

18

XCSE

Genmab A/S

07/06/2024

10:23:09 AM

1,931.5000

15

XCSE

Genmab A/S

07/06/2024

10:23:09 AM

1,931.5000

7

XCSE

Genmab A/S

07/06/2024

10:23:09 AM

1,931.5000

31

XCSE

Genmab A/S

07/06/2024

10:24:34 AM

1,932.0000

6

CEUX

Genmab A/S

07/06/2024

10:24:34 AM

1,932.0000

52

CEUX

Genmab A/S

07/06/2024

10:24:35 AM

1,931.5000

36

CEUX

Genmab A/S

07/06/2024

10:27:38 AM

1,931.5000

16

AQEU

Genmab A/S

07/06/2024

10:27:38 AM

1,931.5000

33

AQEU

Genmab A/S

07/06/2024

10:31:27 AM

1,930.0000

45

CEUX

Genmab A/S

07/06/2024

10:31:27 AM

1,929.5000

5

XCSE

Genmab A/S

07/06/2024

10:31:27 AM

1,929.5000

41

XCSE

Genmab A/S

07/06/2024

10:31:27 AM

1,929.5000

3

CEUX

Genmab A/S

07/06/2024

10:31:27 AM

1,929.5000

30

CEUX

Genmab A/S

07/06/2024

10:31:27 AM

1,929.5000

8

CEUX

Genmab A/S

07/06/2024

10:31:27 AM

1,929.5000

4

CEUX

Genmab A/S

07/06/2024

10:31:27 AM

1,929.0000

6

TQEX

Genmab A/S

07/06/2024

10:31:29 AM

1,929.0000

38

TQEX

Genmab A/S

07/06/2024

10:38:26 AM

1,932.0000

1

CEUX

Genmab A/S

07/06/2024

10:38:59 AM

1,932.0000

50

CEUX

Genmab A/S

07/06/2024

10:38:59 AM

1,932.0000

9

CEUX

Genmab A/S

07/06/2024

10:41:42 AM

1,931.5000

26

XCSE

Genmab A/S

07/06/2024

10:41:42 AM

1,931.5000

36

XCSE

Genmab A/S

07/06/2024

10:43:25 AM

1,931.5000

44

CEUX

Genmab A/S

07/06/2024

10:43:25 AM

1,931.5000

7

TQEX

Genmab A/S

07/06/2024

10:43:25 AM

1,931.5000

50

XCSE

Genmab A/S

07/06/2024

10:43:25 AM

1,931.5000

7

CEUX

Genmab A/S

07/06/2024

10:48:51 AM

1,930.5000

47

XCSE

Genmab A/S

07/06/2024

10:52:45 AM

1,932.0000

38

CEUX

Genmab A/S

07/06/2024

10:54:34 AM

1,933.5000

9

AQEU

Genmab A/S

07/06/2024

10:54:46 AM

1,933.5000

12

XCSE

Genmab A/S

07/06/2024

10:55:06 AM

1,933.0000

25

CEUX

Genmab A/S

07/06/2024

10:55:06 AM

1,933.0000

14

CEUX

Genmab A/S

07/06/2024

10:55:06 AM

1,933.5000

33

XCSE

Genmab A/S

07/06/2024

10:57:49 AM

1,934.0000

24

TQEX

Genmab A/S

07/06/2024

10:57:49 AM

1,934.0000

24

TQEX

Genmab A/S

07/06/2024

10:57:49 AM

1,934.0000

27

TQEX

4


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

10:57:49 AM

1,933.5000

39

XCSE

Genmab A/S

07/06/2024

10:59:12 AM

1,932.5000

48

CEUX

Genmab A/S

07/06/2024

11:01:35 AM

1,930.0000

48

AQEU

Genmab A/S

07/06/2024

11:07:36 AM

1,932.0000

10

CEUX

Genmab A/S

07/06/2024

11:07:36 AM

1,932.0000

24

CEUX

Genmab A/S

07/06/2024

11:08:00 AM

1,931.5000

34

XCSE

Genmab A/S

07/06/2024

11:08:02 AM

1,931.0000

10

CEUX

Genmab A/S

07/06/2024

11:08:02 AM

1,931.0000

32

XCSE

Genmab A/S

07/06/2024

11:11:15 AM

1,931.0000

13

CEUX

Genmab A/S

07/06/2024

11:11:15 AM

1,931.0000

4

CEUX

Genmab A/S

07/06/2024

11:11:15 AM

1,931.0000

31

CEUX

Genmab A/S

07/06/2024

11:11:15 AM

1,931.0000

1

CEUX

Genmab A/S

07/06/2024

11:11:15 AM

1,931.0000

1

CEUX

Genmab A/S

07/06/2024

11:11:15 AM

1,931.0000

1

CEUX

Genmab A/S

07/06/2024

11:11:15 AM

1,931.0000

1

CEUX

Genmab A/S

07/06/2024

11:15:02 AM

1,931.5000

36

XCSE

Genmab A/S

07/06/2024

11:15:02 AM

1,931.5000

3

XCSE

Genmab A/S

07/06/2024

11:16:24 AM

1,930.5000

24

XCSE

Genmab A/S

07/06/2024

11:16:24 AM

1,930.5000

24

XCSE

Genmab A/S

07/06/2024

11:17:12 AM

1,930.0000

79

XCSE

Genmab A/S

07/06/2024

11:22:46 AM

1,929.0000

23

XCSE

Genmab A/S

07/06/2024

11:22:46 AM

1,929.0000

17

TQEX

Genmab A/S

07/06/2024

11:22:46 AM

1,929.0000

6

TQEX

Genmab A/S

07/06/2024

11:22:46 AM

1,929.0000

23

TQEX

Genmab A/S

07/06/2024

11:22:46 AM

1,929.0000

23

TQEX

Genmab A/S

07/06/2024

11:22:46 AM

1,929.0000

5

TQEX

Genmab A/S

07/06/2024

11:27:01 AM

1,929.5000

44

XCSE

Genmab A/S

07/06/2024

11:27:01 AM

1,929.5000

41

CEUX

Genmab A/S

07/06/2024

11:27:01 AM

1,929.5000

5

AQEU

Genmab A/S

07/06/2024

11:27:01 AM

1,929.5000

6

TQEX

Genmab A/S

07/06/2024

11:27:01 AM

1,929.5000

1

CEUX

Genmab A/S

07/06/2024

11:32:21 AM

1,930.0000

36

XCSE

Genmab A/S

07/06/2024

11:34:02 AM

1,929.5000

28

CEUX

Genmab A/S

07/06/2024

11:34:02 AM

1,929.5000

12

CEUX

Genmab A/S

07/06/2024

11:34:02 AM

1,929.5000

21

CEUX

Genmab A/S

07/06/2024

11:37:10 AM

1,930.0000

31

XCSE

Genmab A/S

07/06/2024

11:37:15 AM

1,930.0000

8

XCSE

Genmab A/S

07/06/2024

11:39:06 AM

1,930.5000

24

TQEX

Genmab A/S

07/06/2024

11:39:17 AM

1,930.0000

54

XCSE

5


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

11:39:50 AM

1,929.5000

56

CEUX

Genmab A/S

07/06/2024

11:45:57 AM

1,930.0000

18

XCSE

Genmab A/S

07/06/2024

11:45:58 AM

1,930.0000

17

XCSE

Genmab A/S

07/06/2024

11:48:25 AM

1,930.5000

14

AQEU

Genmab A/S

07/06/2024

11:48:25 AM

1,930.5000

8

AQEU

Genmab A/S

07/06/2024

11:48:25 AM

1,930.5000

1

AQEU

Genmab A/S

07/06/2024

11:49:06 AM

1,930.5000

21

CEUX

Genmab A/S

07/06/2024

11:49:06 AM

1,930.5000

14

CEUX

Genmab A/S

07/06/2024

11:49:06 AM

1,930.5000

1

CEUX

Genmab A/S

07/06/2024

11:50:54 AM

1,930.0000

37

AQEU

Genmab A/S

07/06/2024

11:52:09 AM

1,929.5000

58

TQEX

Genmab A/S

07/06/2024

11:55:41 AM

1,929.5000

3

AQEU

Genmab A/S

07/06/2024

11:55:41 AM

1,929.5000

8

AQEU

Genmab A/S

07/06/2024

11:55:41 AM

1,929.5000

1

AQEU

Genmab A/S

07/06/2024

11:56:45 AM

1,929.5000

36

XCSE

Genmab A/S

07/06/2024

11:56:45 AM

1,929.5000

1

XCSE

Genmab A/S

07/06/2024

11:56:45 AM

1,929.5000

3

XCSE

Genmab A/S

07/06/2024

11:58:29 AM

1,929.5000

39

CEUX

Genmab A/S

07/06/2024

11:58:42 AM

1,929.0000

51

XCSE

Genmab A/S

07/06/2024

11:58:42 AM

1,929.0000

31

XCSE

Genmab A/S

07/06/2024

11:58:42 AM

1,929.0000

16

XCSE

Genmab A/S

07/06/2024

11:58:42 AM

1,929.0000

43

CEUX

Genmab A/S

07/06/2024

11:58:42 AM

1,929.0000

7

TQEX

Genmab A/S

07/06/2024

12:08:26 PM

1,930.5000

8

TQEX

Genmab A/S

07/06/2024

12:08:26 PM

1,930.5000

10

TQEX

Genmab A/S

07/06/2024

12:08:26 PM

1,930.5000

1

TQEX

Genmab A/S

07/06/2024

12:08:26 PM

1,930.5000

15

TQEX

Genmab A/S

07/06/2024

12:08:26 PM

1,929.5000

42

XCSE

Genmab A/S

07/06/2024

12:08:26 PM

1,929.5000

23

XCSE

Genmab A/S

07/06/2024

12:08:26 PM

1,929.5000

43

CEUX

Genmab A/S

07/06/2024

12:08:26 PM

1,929.5000

55

XCSE

Genmab A/S

07/06/2024

12:15:49 PM

1,930.0000

45

CEUX

Genmab A/S

07/06/2024

12:15:49 PM

1,930.0000

6

AQEU

Genmab A/S

07/06/2024

12:15:49 PM

1,930.0000

39

AQEU

Genmab A/S

07/06/2024

12:24:06 PM

1,931.0000

33

XCSE

Genmab A/S

07/06/2024

12:25:53 PM

1,931.0000

3

TQEX

Genmab A/S

07/06/2024

12:25:53 PM

1,931.0000

32

TQEX

Genmab A/S

07/06/2024

12:27:54 PM

1,933.0000

38

CEUX

Genmab A/S

07/06/2024

12:28:52 PM

1,933.5000

96

CEUX

6


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

12:28:52 PM

1,933.5000

69

XCSE

Genmab A/S

07/06/2024

12:28:52 PM

1,933.5000

38

XCSE

Genmab A/S

07/06/2024

12:39:55 PM

1,935.5000

38

XCSE

Genmab A/S

07/06/2024

12:40:59 PM

1,935.0000

37

XCSE

Genmab A/S

07/06/2024

12:40:59 PM

1,935.0000

37

XCSE

Genmab A/S

07/06/2024

12:40:59 PM

1,935.0000

25

XCSE

Genmab A/S

07/06/2024

12:43:46 PM

1,934.5000

50

CEUX

Genmab A/S

07/06/2024

12:49:46 PM

1,935.0000

11

CEUX

Genmab A/S

07/06/2024

12:49:46 PM

1,935.0000

8

CEUX

Genmab A/S

07/06/2024

12:50:42 PM

1,935.0000

36

CEUX

Genmab A/S

07/06/2024

12:52:36 PM

1,935.0000

28

XCSE

Genmab A/S

07/06/2024

12:52:36 PM

1,935.0000

29

XCSE

Genmab A/S

07/06/2024

12:52:36 PM

1,935.0000

35

XCSE

Genmab A/S

07/06/2024

12:57:45 PM

1,935.0000

2

CEUX

Genmab A/S

07/06/2024

12:57:45 PM

1,935.0000

32

CEUX

Genmab A/S

07/06/2024

12:58:02 PM

1,934.5000

27

CEUX

Genmab A/S

07/06/2024

12:58:02 PM

1,934.5000

10

CEUX

Genmab A/S

07/06/2024

1:01:19 PM

1,934.5000

34

TQEX

Genmab A/S

07/06/2024

1:03:09 PM

1,934.5000

1

CEUX

Genmab A/S

07/06/2024

1:03:09 PM

1,934.5000

9

CEUX

Genmab A/S

07/06/2024

1:03:09 PM

1,934.5000

19

XCSE

Genmab A/S

07/06/2024

1:03:09 PM

1,934.5000

9

XCSE

Genmab A/S

07/06/2024

1:05:04 PM

1,936.0000

22

XCSE

Genmab A/S

07/06/2024

1:05:04 PM

1,936.0000

15

XCSE

Genmab A/S

07/06/2024

1:05:04 PM

1,936.0000

22

XCSE

Genmab A/S

07/06/2024

1:05:04 PM

1,936.0000

11

XCSE

Genmab A/S

07/06/2024

1:05:04 PM

1,936.0000

8

XCSE

Genmab A/S

07/06/2024

1:05:04 PM

1,936.0000

8

XCSE

Genmab A/S

07/06/2024

1:05:04 PM

1,936.0000

6

XCSE

Genmab A/S

07/06/2024

1:05:04 PM

1,936.0000

22

XCSE

Genmab A/S

07/06/2024

1:05:04 PM

1,936.0000

22

XCSE

Genmab A/S

07/06/2024

1:05:04 PM

1,936.0000

14

XCSE

Genmab A/S

07/06/2024

1:05:04 PM

1,936.0000

8

XCSE

Genmab A/S

07/06/2024

1:05:24 PM

1,934.5000

43

CEUX

Genmab A/S

07/06/2024

1:14:14 PM

1,930.0000

48

XCSE

Genmab A/S

07/06/2024

1:14:14 PM

1,929.5000

33

XCSE

Genmab A/S

07/06/2024

1:14:14 PM

1,929.5000

15

XCSE

Genmab A/S

07/06/2024

1:14:14 PM

1,929.5000

39

CEUX

Genmab A/S

07/06/2024

1:14:14 PM

1,929.5000

11

CEUX

7


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

1:22:11 PM

1,929.5000

38

XCSE

Genmab A/S

07/06/2024

1:22:11 PM

1,929.5000

50

XCSE

Genmab A/S

07/06/2024

1:28:15 PM

1,930.0000

17

XCSE

Genmab A/S

07/06/2024

1:28:15 PM

1,930.0000

10

XCSE

Genmab A/S

07/06/2024

1:30:42 PM

1,930.0000

20

CEUX

Genmab A/S

07/06/2024

1:31:01 PM

1,930.5000

23

CEUX

Genmab A/S

07/06/2024

1:32:04 PM

1,930.5000

3

CEUX

Genmab A/S

07/06/2024

1:32:05 PM

1,930.5000

36

CEUX

Genmab A/S

07/06/2024

1:34:05 PM

1,930.5000

23

XCSE

Genmab A/S

07/06/2024

1:34:05 PM

1,930.5000

13

XCSE

Genmab A/S

07/06/2024

1:34:45 PM

1,930.0000

39

CEUX

Genmab A/S

07/06/2024

1:37:52 PM

1,930.5000

36

CEUX

Genmab A/S

07/06/2024

1:39:40 PM

1,931.0000

1

AQEU

Genmab A/S

07/06/2024

1:40:47 PM

1,932.5000

16

XCSE

Genmab A/S

07/06/2024

1:41:10 PM

1,932.5000

13

CEUX

Genmab A/S

07/06/2024

1:41:10 PM

1,932.5000

22

CEUX

Genmab A/S

07/06/2024

1:42:13 PM

1,932.5000

20

CEUX

Genmab A/S

07/06/2024

1:42:13 PM

1,932.5000

16

XCSE

Genmab A/S

07/06/2024

1:42:48 PM

1,932.0000

38

CEUX

Genmab A/S

07/06/2024

1:43:15 PM

1,931.5000

26

TQEX

Genmab A/S

07/06/2024

1:43:15 PM

1,931.5000

34

TQEX

Genmab A/S

07/06/2024

1:43:15 PM

1,931.0000

12

XCSE

Genmab A/S

07/06/2024

1:43:19 PM

1,931.0000

30

XCSE

Genmab A/S

07/06/2024

1:43:19 PM

1,931.0000

5

XCSE

Genmab A/S

07/06/2024

1:48:55 PM

1,930.5000

10

CEUX

Genmab A/S

07/06/2024

1:48:55 PM

1,930.5000

38

CEUX

Genmab A/S

07/06/2024

1:53:22 PM

1,932.0000

9

XCSE

Genmab A/S

07/06/2024

1:53:22 PM

1,932.0000

38

XCSE

Genmab A/S

07/06/2024

1:56:05 PM

1,932.5000

12

CEUX

Genmab A/S

07/06/2024

1:56:05 PM

1,932.5000

19

CEUX

Genmab A/S

07/06/2024

1:57:26 PM

1,932.5000

15

CEUX

Genmab A/S

07/06/2024

1:58:06 PM

1,932.0000

2

CEUX

Genmab A/S

07/06/2024

1:58:07 PM

1,932.5000

35

XCSE

Genmab A/S

07/06/2024

1:58:48 PM

1,932.5000

46

CEUX

Genmab A/S

07/06/2024

1:58:48 PM

1,932.5000

4

XCSE

Genmab A/S

07/06/2024

1:58:48 PM

1,932.5000

50

XCSE

Genmab A/S

07/06/2024

2:00:09 PM

1,931.0000

42

XCSE

Genmab A/S

07/06/2024

2:00:09 PM

1,931.0000

11

XCSE

Genmab A/S

07/06/2024

2:00:09 PM

1,931.0000

32

XCSE

8


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

2:00:09 PM

1,931.0000

3

AQEU

Genmab A/S

07/06/2024

2:00:09 PM

1,931.0000

2

AQEU

Genmab A/S

07/06/2024

2:00:09 PM

1,931.0000

4

AQEU

Genmab A/S

07/06/2024

2:00:09 PM

1,931.0000

36

AQEU

Genmab A/S

07/06/2024

2:04:31 PM

1,929.5000

10

CEUX

Genmab A/S

07/06/2024

2:04:31 PM

1,929.5000

39

CEUX

Genmab A/S

07/06/2024

2:04:31 PM

1,929.5000

12

XCSE

Genmab A/S

07/06/2024

2:05:59 PM

1,928.0000

1

XCSE

Genmab A/S

07/06/2024

2:11:59 PM

1,930.0000

57

XCSE

Genmab A/S

07/06/2024

2:13:54 PM

1,930.0000

13

CEUX

Genmab A/S

07/06/2024

2:16:20 PM

1,929.5000

35

CEUX

Genmab A/S

07/06/2024

2:16:55 PM

1,930.0000

12

CEUX

Genmab A/S

07/06/2024

2:16:55 PM

1,930.0000

16

CEUX

Genmab A/S

07/06/2024

2:17:52 PM

1,929.5000

44

CEUX

Genmab A/S

07/06/2024

2:20:05 PM

1,929.5000

49

XCSE

Genmab A/S

07/06/2024

2:23:01 PM

1,929.5000

11

CEUX

Genmab A/S

07/06/2024

2:24:17 PM

1,930.0000

39

XCSE

Genmab A/S

07/06/2024

2:25:21 PM

1,929.5000

3

CEUX

Genmab A/S

07/06/2024

2:25:21 PM

1,929.5000

35

CEUX

Genmab A/S

07/06/2024

2:25:21 PM

1,929.5000

49

XCSE

Genmab A/S

07/06/2024

2:25:21 PM

1,929.5000

85

XCSE

Genmab A/S

07/06/2024

2:30:02 PM

1,928.5000

21

XCSE

Genmab A/S

07/06/2024

2:30:02 PM

1,928.5000

21

XCSE

Genmab A/S

07/06/2024

2:30:02 PM

1,928.5000

19

XCSE

Genmab A/S

07/06/2024

2:30:07 PM

1,927.5000

14

CEUX

Genmab A/S

07/06/2024

2:30:07 PM

1,927.5000

23

CEUX

Genmab A/S

07/06/2024

2:30:07 PM

1,927.5000

6

AQEU

Genmab A/S

07/06/2024

2:30:07 PM

1,927.5000

6

TQEX

Genmab A/S

07/06/2024

2:30:07 PM

1,927.5000

13

XCSE

Genmab A/S

07/06/2024

2:30:07 PM

1,927.5000

29

XCSE

Genmab A/S

07/06/2024

2:30:07 PM

1,927.0000

69

XCSE

Genmab A/S

07/06/2024

2:38:47 PM

1,922.0000

27

XCSE

Genmab A/S

07/06/2024

2:38:47 PM

1,922.0000

14

XCSE

Genmab A/S

07/06/2024

2:38:47 PM

1,922.0000

13

XCSE

Genmab A/S

07/06/2024

2:38:47 PM

1,922.0000

27

XCSE

Genmab A/S

07/06/2024

2:41:56 PM

1,917.0000

27

XCSE

Genmab A/S

07/06/2024

2:41:56 PM

1,917.0000

17

XCSE

Genmab A/S

07/06/2024

2:41:56 PM

1,917.0000

8

XCSE

Genmab A/S

07/06/2024

2:41:56 PM

1,917.0000

43

CEUX

9


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

2:44:22 PM

1,917.0000

26

XCSE

Genmab A/S

07/06/2024

2:44:22 PM

1,917.0000

24

XCSE

Genmab A/S

07/06/2024

2:45:47 PM

1,916.0000

46

CEUX

Genmab A/S

07/06/2024

2:46:25 PM

1,915.5000

79

XCSE

Genmab A/S

07/06/2024

2:46:25 PM

1,914.5000

64

CEUX

Genmab A/S

07/06/2024

2:50:44 PM

1,916.0000

59

XCSE

Genmab A/S

07/06/2024

2:52:03 PM

1,915.5000

82

XCSE

Genmab A/S

07/06/2024

2:55:01 PM

1,915.0000

46

XCSE

Genmab A/S

07/06/2024

2:55:01 PM

1,915.0000

42

CEUX

Genmab A/S

07/06/2024

2:55:01 PM

1,915.0000

6

AQEU

Genmab A/S

07/06/2024

2:55:01 PM

1,915.0000

7

TQEX

Genmab A/S

07/06/2024

2:55:01 PM

1,913.5000

48

CEUX

Genmab A/S

07/06/2024

2:55:01 PM

1,913.0000

24

XCSE

Genmab A/S

07/06/2024

2:55:01 PM

1,913.0000

24

XCSE

Genmab A/S

07/06/2024

3:02:04 PM

1,912.0000

11

AQEU

Genmab A/S

07/06/2024

3:03:19 PM

1,914.5000

6

CEUX

Genmab A/S

07/06/2024

3:03:27 PM

1,914.5000

36

CEUX

Genmab A/S

07/06/2024

3:05:02 PM

1,917.5000

17

CEUX

Genmab A/S

07/06/2024

3:05:02 PM

1,917.5000

10

XCSE

Genmab A/S

07/06/2024

3:05:38 PM

1,918.0000

17

CEUX

Genmab A/S

07/06/2024

3:05:38 PM

1,918.0000

8

CEUX

Genmab A/S

07/06/2024

3:05:38 PM

1,918.0000

8

XCSE

Genmab A/S

07/06/2024

3:05:38 PM

1,918.0000

2

XCSE

Genmab A/S

07/06/2024

3:06:03 PM

1,917.0000

52

CEUX

Genmab A/S

07/06/2024

3:06:03 PM

1,917.0000

8

AQEU

Genmab A/S

07/06/2024

3:06:03 PM

1,917.0000

8

TQEX

Genmab A/S

07/06/2024

3:06:03 PM

1,917.0000

58

XCSE

Genmab A/S

07/06/2024

3:10:30 PM

1,916.5000

38

XCSE

Genmab A/S

07/06/2024

3:10:30 PM

1,916.0000

55

XCSE

Genmab A/S

07/06/2024

3:10:30 PM

1,916.0000

16

XCSE

Genmab A/S

07/06/2024

3:10:30 PM

1,916.0000

25

XCSE

Genmab A/S

07/06/2024

3:10:30 PM

1,916.0000

12

XCSE

Genmab A/S

07/06/2024

3:10:30 PM

1,915.5000

19

XCSE

Genmab A/S

07/06/2024

3:10:30 PM

1,915.5000

2

XCSE

Genmab A/S

07/06/2024

3:10:30 PM

1,915.5000

6

XCSE

Genmab A/S

07/06/2024

3:10:30 PM

1,915.5000

24

XCSE

Genmab A/S

07/06/2024

3:17:13 PM

1,915.0000

52

XCSE

Genmab A/S

07/06/2024

3:19:42 PM

1,919.5000

36

CEUX

Genmab A/S

07/06/2024

3:19:44 PM

1,918.5000

43

CEUX

10


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

3:19:44 PM

1,918.5000

6

AQEU

Genmab A/S

07/06/2024

3:19:44 PM

1,918.5000

4

TQEX

Genmab A/S

07/06/2024

3:19:44 PM

1,918.5000

3

TQEX

Genmab A/S

07/06/2024

3:19:44 PM

1,918.5000

26

XCSE

Genmab A/S

07/06/2024

3:19:44 PM

1,918.5000

22

XCSE

Genmab A/S

07/06/2024

3:21:58 PM

1,920.0000

15

XCSE

Genmab A/S

07/06/2024

3:21:58 PM

1,920.0000

34

XCSE

Genmab A/S

07/06/2024

3:23:38 PM

1,919.5000

13

XCSE

Genmab A/S

07/06/2024

3:23:38 PM

1,919.5000

1

XCSE

Genmab A/S

07/06/2024

3:23:56 PM

1,919.5000

36

XCSE

Genmab A/S

07/06/2024

3:24:32 PM

1,917.5000

52

CEUX

Genmab A/S

07/06/2024

3:26:13 PM

1,918.5000

50

XCSE

Genmab A/S

07/06/2024

3:28:00 PM

1,920.0000

53

XCSE

Genmab A/S

07/06/2024

3:28:54 PM

1,918.5000

2

XCSE

Genmab A/S

07/06/2024

3:29:47 PM

1,918.5000

45

XCSE

Genmab A/S

07/06/2024

3:29:59 PM

1,918.0000

48

XCSE

Genmab A/S

07/06/2024

3:30:03 PM

1,915.5000

10

CEUX

Genmab A/S

07/06/2024

3:30:03 PM

1,915.5000

23

XCSE

Genmab A/S

07/06/2024

3:30:03 PM

1,915.5000

11

XCSE

Genmab A/S

07/06/2024

3:30:03 PM

1,915.5000

14

XCSE

Genmab A/S

07/06/2024

3:33:11 PM

1,916.5000

6

XCSE

Genmab A/S

07/06/2024

3:33:11 PM

1,916.5000

29

XCSE

Genmab A/S

07/06/2024

3:33:11 PM

1,916.5000

11

XCSE

Genmab A/S

07/06/2024

3:33:12 PM

1,915.5000

47

XCSE

Genmab A/S

07/06/2024

3:33:12 PM

1,916.0000

48

XCSE

Genmab A/S

07/06/2024

3:35:30 PM

1,915.0000

33

XCSE

Genmab A/S

07/06/2024

3:35:30 PM

1,915.0000

8

XCSE

Genmab A/S

07/06/2024

3:35:30 PM

1,915.0000

26

XCSE

Genmab A/S

07/06/2024

3:38:44 PM

1,915.0000

38

CEUX

Genmab A/S

07/06/2024

3:38:44 PM

1,915.0000

6

AQEU

Genmab A/S

07/06/2024

3:38:44 PM

1,915.0000

6

TQEX

Genmab A/S

07/06/2024

3:38:44 PM

1,915.0000

42

XCSE

Genmab A/S

07/06/2024

3:38:44 PM

1,913.5000

33

CEUX

Genmab A/S

07/06/2024

3:38:44 PM

1,913.5000

10

CEUX

Genmab A/S

07/06/2024

3:38:44 PM

1,913.5000

16

CEUX

Genmab A/S

07/06/2024

3:38:44 PM

1,913.5000

26

CEUX

Genmab A/S

07/06/2024

3:38:44 PM

1,913.0000

9

CEUX

Genmab A/S

07/06/2024

3:38:44 PM

1,913.0000

3

CEUX

Genmab A/S

07/06/2024

3:38:44 PM

1,913.0000

7

CEUX

11


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

3:38:44 PM

1,913.0000

4

AQEU

Genmab A/S

07/06/2024

3:38:44 PM

1,913.0000

8

AQEU

Genmab A/S

07/06/2024

3:38:44 PM

1,913.0000

4

TQEX

Genmab A/S

07/06/2024

3:38:44 PM

1,913.0000

4

TQEX

Genmab A/S

07/06/2024

3:38:44 PM

1,913.0000

4

AQEU

Genmab A/S

07/06/2024

3:38:44 PM

1,913.0000

2

TQEX

Genmab A/S

07/06/2024

3:42:10 PM

1,911.0000

50

XCSE

Genmab A/S

07/06/2024

3:43:26 PM

1,912.5000

23

CEUX

Genmab A/S

07/06/2024

3:44:33 PM

1,915.0000

14

XCSE

Genmab A/S

07/06/2024

3:44:33 PM

1,915.0000

26

XCSE

Genmab A/S

07/06/2024

3:45:15 PM

1,915.0000

53

XCSE

Genmab A/S

07/06/2024

3:47:36 PM

1,915.0000

34

XCSE

Genmab A/S

07/06/2024

3:47:36 PM

1,915.0000

49

CEUX

Genmab A/S

07/06/2024

3:47:59 PM

1,914.5000

56

TQEX

Genmab A/S

07/06/2024

3:50:46 PM

1,915.5000

6

XCSE

Genmab A/S

07/06/2024

3:50:46 PM

1,915.5000

57

XCSE

Genmab A/S

07/06/2024

3:52:04 PM

1,915.5000

34

CEUX

Genmab A/S

07/06/2024

3:52:04 PM

1,915.5000

26

CEUX

Genmab A/S

07/06/2024

3:53:16 PM

1,913.0000

22

XCSE

Genmab A/S

07/06/2024

3:54:05 PM

1,913.5000

58

XCSE

Genmab A/S

07/06/2024

3:54:09 PM

1,913.0000

75

CEUX

Genmab A/S

07/06/2024

3:54:09 PM

1,912.5000

76

CEUX

Genmab A/S

07/06/2024

3:59:52 PM

1,914.0000

6

TQEX

Genmab A/S

07/06/2024

3:59:52 PM

1,914.0000

8

TQEX

Genmab A/S

07/06/2024

4:01:09 PM

1,918.0000

54

XCSE

Genmab A/S

07/06/2024

4:01:09 PM

1,918.0000

12

XCSE

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

12

CEUX

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

12

CEUX

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

12

CEUX

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

2

CEUX

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

12

CEUX

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

12

CEUX

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

6

CEUX

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

12

CEUX

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

1

CEUX

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

1

AQEU

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

5

TQEX

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

5

TQEX

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

12

TQEX

12


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

5

TQEX

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

11

XCSE

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

11

XCSE

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

41

XCSE

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

11

XCSE

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

11

XCSE

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

1

XCSE

Genmab A/S

07/06/2024

4:01:11 PM

1,917.5000

1

XCSE

Genmab A/S

07/06/2024

4:01:12 PM

1,917.5000

14

CEUX

Genmab A/S

07/06/2024

4:01:12 PM

1,917.5000

15

CEUX

Genmab A/S

07/06/2024

4:01:12 PM

1,917.5000

27

CEUX

Genmab A/S

07/06/2024

4:05:33 PM

1,917.5000

72

CEUX

Genmab A/S

07/06/2024

4:07:05 PM

1,918.0000

32

CEUX

Genmab A/S

07/06/2024

4:07:05 PM

1,918.0000

44

CEUX

Genmab A/S

07/06/2024

4:08:14 PM

1,918.0000

21

CEUX

Genmab A/S

07/06/2024

4:08:14 PM

1,918.0000

15

TQEX

Genmab A/S

07/06/2024

4:08:14 PM

1,918.0000

21

CEUX

Genmab A/S

07/06/2024

4:08:14 PM

1,918.0000

4

CEUX

Genmab A/S

07/06/2024

4:08:14 PM

1,918.0000

14

CEUX

Genmab A/S

07/06/2024

4:10:42 PM

1,917.5000

25

XCSE

Genmab A/S

07/06/2024

4:10:42 PM

1,917.5000

25

XCSE

Genmab A/S

07/06/2024

4:10:42 PM

1,917.5000

15

CEUX

Genmab A/S

07/06/2024

4:10:43 PM

1,917.5000

8

XCSE

Genmab A/S

07/06/2024

4:10:43 PM

1,917.5000

17

XCSE

Genmab A/S

07/06/2024

4:11:50 PM

1,918.0000

7

CEUX

Genmab A/S

07/06/2024

4:11:50 PM

1,918.0000

51

CEUX

Genmab A/S

07/06/2024

4:14:39 PM

1,922.0000

23

CEUX

Genmab A/S

07/06/2024

4:14:41 PM

1,921.5000

58

CEUX

Genmab A/S

07/06/2024

4:14:41 PM

1,921.5000

7

CEUX

Genmab A/S

07/06/2024

4:14:41 PM

1,921.5000

9

AQEU

Genmab A/S

07/06/2024

4:14:41 PM

1,921.5000

10

TQEX

Genmab A/S

07/06/2024

4:14:41 PM

1,921.5000

71

XCSE

Genmab A/S

07/06/2024

4:16:31 PM

1,922.0000

40

CEUX

Genmab A/S

07/06/2024

4:17:53 PM

1,921.5000

21

XCSE

Genmab A/S

07/06/2024

4:19:36 PM

1,923.0000

35

CEUX

Genmab A/S

07/06/2024

4:20:05 PM

1,923.5000

26

XCSE

Genmab A/S

07/06/2024

4:20:05 PM

1,923.5000

26

XCSE

Genmab A/S

07/06/2024

4:20:05 PM

1,923.5000

26

XCSE

Genmab A/S

07/06/2024

4:20:05 PM

1,923.5000

20

XCSE

13


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

4:20:06 PM

1,922.5000

5

CEUX

Genmab A/S

07/06/2024

4:20:06 PM

1,922.5000

50

CEUX

Genmab A/S

07/06/2024

4:20:06 PM

1,922.5000

27

CEUX

Genmab A/S

07/06/2024

4:20:06 PM

1,922.5000

47

XCSE

Genmab A/S

07/06/2024

4:20:06 PM

1,922.5000

1

XCSE

Genmab A/S

07/06/2024

4:20:16 PM

1,920.5000

11

CEUX

Genmab A/S

07/06/2024

4:20:16 PM

1,920.5000

30

CEUX

Genmab A/S

07/06/2024

4:20:16 PM

1,920.5000

9

CEUX

Genmab A/S

07/06/2024

4:20:16 PM

1,920.5000

6

AQEU

Genmab A/S

07/06/2024

4:20:16 PM

1,920.5000

2

AQEU

Genmab A/S

07/06/2024

4:20:16 PM

1,920.5000

8

AQEU

Genmab A/S

07/06/2024

4:20:16 PM

1,920.5000

2

AQEU

Genmab A/S

07/06/2024

4:20:16 PM

1,920.5000

1

AQEU

Genmab A/S

07/06/2024

4:20:16 PM

1,920.5000

2

TQEX

Genmab A/S

07/06/2024

4:20:16 PM

1,920.5000

8

TQEX

Genmab A/S

07/06/2024

4:20:16 PM

1,920.5000

8

TQEX

Genmab A/S

07/06/2024

4:20:16 PM

1,920.5000

3

CEUX

Genmab A/S

07/06/2024

4:27:04 PM

1,927.5000

49

CEUX

Genmab A/S

07/06/2024

4:27:04 PM

1,927.5000

24

CEUX

Genmab A/S

07/06/2024

4:28:53 PM

1,929.5000

70

XCSE

Genmab A/S

07/06/2024

4:28:53 PM

1,929.5000

63

CEUX

Genmab A/S

07/06/2024

4:28:53 PM

1,929.5000

9

AQEU

Genmab A/S

07/06/2024

4:28:53 PM

1,929.5000

10

TQEX

Genmab A/S

07/06/2024

4:30:31 PM

1,928.0000

20

CEUX

Genmab A/S

07/06/2024

4:30:31 PM

1,928.0000

8

AQEU

Genmab A/S

07/06/2024

4:30:31 PM

1,928.0000

22

CEUX

Genmab A/S

07/06/2024

4:30:31 PM

1,928.0000

21

CEUX

Genmab A/S

07/06/2024

4:30:34 PM

1,928.0000

1

CEUX

Genmab A/S

07/06/2024

4:30:34 PM

1,928.0000

8

CEUX

Genmab A/S

07/06/2024

4:30:34 PM

1,928.0000

20

TQEX

Genmab A/S

07/06/2024

4:30:34 PM

1,928.0000

5

CEUX

Genmab A/S

07/06/2024

4:33:04 PM

1,929.0000

9

XCSE

Genmab A/S

07/06/2024

4:33:04 PM

1,929.0000

56

XCSE

Genmab A/S

07/06/2024

4:33:04 PM

1,929.0000

58

CEUX

Genmab A/S

07/06/2024

4:33:04 PM

1,929.0000

9

AQEU

Genmab A/S

07/06/2024

4:33:04 PM

1,929.0000

9

TQEX

Genmab A/S

07/06/2024

4:36:07 PM

1,928.5000

2

TQEX

Genmab A/S

07/06/2024

4:37:07 PM

1,929.5000

16

CEUX

Genmab A/S

07/06/2024

4:37:07 PM

1,929.5000

5

CEUX

14


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

4:37:07 PM

1,929.5000

8

CEUX

Genmab A/S

07/06/2024

4:37:07 PM

1,929.5000

8

AQEU

Genmab A/S

07/06/2024

4:37:07 PM

1,929.5000

1

AQEU

Genmab A/S

07/06/2024

4:37:18 PM

1,929.5000

34

CEUX

Genmab A/S

07/06/2024

4:37:27 PM

1,929.5000

39

CEUX

Genmab A/S

07/06/2024

4:37:53 PM

1,929.5000

49

XCSE

Genmab A/S

07/06/2024

4:37:53 PM

1,929.5000

29

XCSE

Genmab A/S

07/06/2024

4:37:53 PM

1,929.5000

38

XCSE

Genmab A/S

07/06/2024

4:37:53 PM

1,929.5000

72

XCSE

Genmab A/S

07/06/2024

4:37:53 PM

1,929.5000

13

CEUX

Genmab A/S

07/06/2024

4:37:53 PM

1,929.5000

7

AQEU

Genmab A/S

07/06/2024

4:37:53 PM

1,929.5000

17

CEUX

Genmab A/S

07/06/2024

4:37:53 PM

1,929.5000

10

CEUX

Genmab A/S

07/06/2024

4:37:53 PM

1,929.5000

4

TQEX

Genmab A/S

07/06/2024

4:37:53 PM

1,929.5000

3

TQEX

Genmab A/S

07/06/2024

4:37:53 PM

1,929.5000

30

CEUX

Genmab A/S

07/06/2024

4:37:53 PM

1,929.5000

29

CEUX

Genmab A/S

07/06/2024

4:37:53 PM

1,929.5000

4

TQEX

Genmab A/S

07/06/2024

4:37:53 PM

1,929.5000

7

TQEX

Genmab A/S

07/06/2024

4:37:53 PM

1,929.5000

67

XCSE

Genmab A/S

07/06/2024

4:37:54 PM

1,929.5000

11

XCSE

Genmab A/S

07/06/2024

4:37:54 PM

1,929.5000

70

CEUX

Genmab A/S

07/06/2024

4:37:54 PM

1,929.5000

70

CEUX

Genmab A/S

07/06/2024

4:37:54 PM

1,929.5000

45

CEUX

Genmab A/S

07/06/2024

4:37:54 PM

1,929.5000

11

TQEX

Genmab A/S

07/06/2024

4:39:19 PM

1,930.0000

12

XCSE

Genmab A/S

07/06/2024

4:39:53 PM

1,930.0000

12

XCSE

Genmab A/S

07/06/2024

4:40:40 PM

1,931.0000

22

CEUX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

10

CEUX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

10

CEUX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

10

CEUX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

10

CEUX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

10

CEUX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

4

CEUX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

10

CEUX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

10

CEUX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

10

CEUX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

10

CEUX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

4

CEUX

15


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

10

CEUX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

1

AQEU

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

1

AQEU

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

4

AQEU

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

5

TQEX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

2

TQEX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

10

XCSE

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

36

XCSE

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

1

XCSE

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

10

XCSE

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

10

XCSE

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

1

XCSE

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

11

XCSE

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

6

XCSE

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

10

CEUX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

10

CEUX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

10

CEUX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

6

CEUX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

1

AQEU

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

7

AQEU

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

3

TQEX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

11

TQEX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

8

AQEU

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

1

AQEU

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

8

TQEX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

2

TQEX

Genmab A/S

07/06/2024

4:40:51 PM

1,931.0000

18

XCSE

Genmab A/S

07/06/2024

4:42:05 PM

1,931.0000

9

XCSE

Genmab A/S

07/06/2024

4:42:05 PM

1,931.0000

73

XCSE

Genmab A/S

07/06/2024

4:42:05 PM

1,931.0000

9

CEUX

Genmab A/S

07/06/2024

4:42:05 PM

1,931.0000

9

CEUX

Genmab A/S

07/06/2024

4:42:05 PM

1,931.0000

5

TQEX

Genmab A/S

07/06/2024

4:42:06 PM

1,931.0000

9

XCSE

Genmab A/S

07/06/2024

4:42:07 PM

1,931.0000

9

XCSE

Genmab A/S

07/06/2024

4:42:07 PM

1,931.0000

9

XCSE

Genmab A/S

07/06/2024

4:42:07 PM

1,931.0000

9

CEUX

Genmab A/S

07/06/2024

4:42:08 PM

1,931.0000

9

XCSE

Genmab A/S

07/06/2024

4:42:09 PM

1,931.0000

9

CEUX

Genmab A/S

07/06/2024

4:42:09 PM

1,931.0000

1

AQEU

16


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

4:42:09 PM

1,931.0000

2

TQEX

Genmab A/S

07/06/2024

4:42:09 PM

1,931.0000

9

XCSE

Genmab A/S

07/06/2024

4:42:09 PM

1,931.0000

9

CEUX

Genmab A/S

07/06/2024

4:42:09 PM

1,931.0000

9

XCSE

Genmab A/S

07/06/2024

4:42:09 PM

1,931.0000

9

XCSE

Genmab A/S

07/06/2024

4:42:09 PM

1,931.0000

9

CEUX

Genmab A/S

07/06/2024

4:42:35 PM

1,931.5000

11

XCSE

Genmab A/S

07/06/2024

4:42:35 PM

1,931.5000

52

CEUX

Genmab A/S

07/06/2024

4:42:35 PM

1,931.5000

82

CEUX

Genmab A/S

07/06/2024

4:42:35 PM

1,931.5000

24

XCSE

Genmab A/S

07/06/2024

4:42:36 PM

1,931.5000

31

XCSE

Genmab A/S

07/06/2024

4:42:37 PM

1,931.5000

36

XCSE

Genmab A/S

07/06/2024

4:42:37 PM

1,931.5000

48

XCSE

Genmab A/S

07/06/2024

4:42:37 PM

1,931.5000

16

AQEU

Genmab A/S

07/06/2024

4:42:37 PM

1,931.5000

3

AQEU

Genmab A/S

07/06/2024

4:42:37 PM

1,931.5000

21

TQEX

Genmab A/S

07/06/2024

4:43:33 PM

1,930.5000

7

AQEU

Genmab A/S

07/06/2024

4:43:34 PM

1,930.5000

5

CEUX

Genmab A/S

07/06/2024

4:43:34 PM

1,930.5000

2

CEUX

Genmab A/S

07/06/2024

4:43:58 PM

1,930.5000

6

AQEU

Genmab A/S

07/06/2024

4:44:32 PM

1,931.0000

1

XCSE

Genmab A/S

07/06/2024

4:44:44 PM

1,931.0000

21

XCSE

Genmab A/S

07/06/2024

4:45:16 PM

1,932.0000

19

CEUX

Genmab A/S

07/06/2024

4:45:16 PM

1,932.0000

20

XCSE

Genmab A/S

07/06/2024

4:45:17 PM

1,932.0000

25

CEUX

Genmab A/S

07/06/2024

4:46:20 PM

1,932.5000

16

CEUX

Genmab A/S

07/06/2024

4:46:20 PM

1,932.5000

10

CEUX

Genmab A/S

07/06/2024

4:46:20 PM

1,932.5000

19

CEUX

Genmab A/S

07/06/2024

4:46:20 PM

1,932.5000

12

CEUX

Genmab A/S

07/06/2024

4:46:20 PM

1,932.5000

20

XCSE

Genmab A/S

07/06/2024

4:46:20 PM

1,932.5000

9

XCSE

Genmab A/S

07/06/2024

4:46:20 PM

1,932.5000

17

CEUX

Genmab A/S

07/06/2024

4:46:20 PM

1,932.5000

19

CEUX

Genmab A/S

07/06/2024

4:46:21 PM

1,932.5000

5

TQEX

Genmab A/S

07/06/2024

4:46:21 PM

1,932.5000

19

XCSE

Genmab A/S

07/06/2024

4:46:22 PM

1,932.5000

19

CEUX

Genmab A/S

07/06/2024

4:46:22 PM

1,932.5000

19

CEUX

Genmab A/S

07/06/2024

4:46:22 PM

1,932.5000

7

CEUX

Genmab A/S

07/06/2024

4:46:22 PM

1,932.5000

12

CEUX

17


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

4:46:22 PM

1,932.5000

3

CEUX

Genmab A/S

07/06/2024

4:46:22 PM

1,932.5000

5

TQEX

Genmab A/S

07/06/2024

4:46:22 PM

1,932.5000

8

XCSE

Genmab A/S

07/06/2024

4:46:22 PM

1,932.5000

11

XCSE

Genmab A/S

07/06/2024

4:46:22 PM

1,932.5000

8

XCSE

Genmab A/S

07/06/2024

4:46:22 PM

1,932.5000

42

XCSE

Genmab A/S

07/06/2024

4:46:22 PM

1,932.5000

23

CEUX

Genmab A/S

07/06/2024

4:46:22 PM

1,932.5000

8

TQEX

Genmab A/S

07/06/2024

4:46:22 PM

1,932.5000

2

CEUX

Genmab A/S

07/06/2024

4:46:29 PM

1,932.5000

39

XCSE

Genmab A/S

07/06/2024

4:46:29 PM

1,932.5000

8

AQEU

Genmab A/S

07/06/2024

4:46:29 PM

1,932.5000

2

AQEU

Genmab A/S

07/06/2024

4:46:29 PM

1,932.5000

36

CEUX

Genmab A/S

07/06/2024

4:46:29 PM

1,932.5000

8

TQEX

Genmab A/S

07/06/2024

4:46:29 PM

1,932.5000

10

TQEX

Genmab A/S

07/06/2024

4:46:32 PM

1,932.5000

22

XCSE

Genmab A/S

07/06/2024

4:47:09 PM

1,932.5000

40

XCSE

Genmab A/S

07/06/2024

4:47:09 PM

1,932.5000

12

XCSE

Genmab A/S

07/06/2024

4:47:09 PM

1,932.5000

13

TQEX

Genmab A/S

07/06/2024

4:47:09 PM

1,932.5000

88

CEUX

Genmab A/S

07/06/2024

4:47:09 PM

1,932.5000

88

CEUX

Genmab A/S

07/06/2024

4:47:09 PM

1,932.5000

88

CEUX

Genmab A/S

07/06/2024

4:47:09 PM

1,932.5000

38

CEUX

Genmab A/S

07/06/2024

4:47:09 PM

1,932.5000

13

TQEX

Genmab A/S

07/06/2024

4:47:09 PM

1,932.5000

86

XCSE

Genmab A/S

07/06/2024

4:47:09 PM

1,932.5000

13

TQEX

Genmab A/S

07/06/2024

4:47:09 PM

1,932.5000

37

CEUX

Genmab A/S

07/06/2024

4:47:30 PM

1,932.0000

10

XCSE

Genmab A/S

07/06/2024

4:47:30 PM

1,932.0000

139

XCSE

Genmab A/S

07/06/2024

4:47:30 PM

1,932.0000

6

CEUX

Genmab A/S

07/06/2024

4:47:30 PM

1,932.0000

4

CEUX

Genmab A/S

07/06/2024

4:47:30 PM

1,932.0000

14

TQEX

Genmab A/S

07/06/2024

4:47:30 PM

1,932.0000

7

TQEX

Genmab A/S

07/06/2024

4:47:30 PM

1,932.0000

8

TQEX

Genmab A/S

07/06/2024

4:47:30 PM

1,932.0000

36

CEUX

Genmab A/S

07/06/2024

4:47:30 PM

1,932.0000

34

CEUX

Genmab A/S

07/06/2024

4:47:30 PM

1,932.0000

17

XCSE

Genmab A/S

07/06/2024

4:47:30 PM

1,932.0000

5

CEUX

Genmab A/S

07/06/2024

4:47:30 PM

1,932.0000

6

AQEU

18


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

4:48:15 PM

1,932.0000

13

CEUX

Genmab A/S

07/06/2024

4:48:37 PM

1,932.0000

1

AQEU

Genmab A/S

07/06/2024

4:49:35 PM

1,932.0000

5

AQEU

Genmab A/S

07/06/2024

4:49:35 PM

1,932.0000

11

AQEU

Genmab A/S

07/06/2024

4:49:51 PM

1,932.0000

39

CEUX

Genmab A/S

07/06/2024

4:49:51 PM

1,932.0000

73

CEUX

Genmab A/S

07/06/2024

4:49:51 PM

1,932.0000

5

AQEU

Genmab A/S

07/06/2024

4:49:51 PM

1,932.0000

15

TQEX

Genmab A/S

07/06/2024

4:49:51 PM

1,932.0000

2

TQEX

Genmab A/S

07/06/2024

4:49:51 PM

1,932.0000

37

XCSE

Genmab A/S

07/06/2024

4:49:51 PM

1,932.0000

125

XCSE

Genmab A/S

07/06/2024

4:49:51 PM

1,932.0000

77

XCSE

Genmab A/S

07/06/2024

4:49:51 PM

1,932.0000

10

XCSE

Genmab A/S

07/06/2024

4:49:51 PM

1,932.0000

50

XCSE

Genmab A/S

07/06/2024

4:49:54 PM

1,932.0000

16

AQEU

Genmab A/S

07/06/2024

4:49:54 PM

1,932.0000

42

XCSE

Genmab A/S

07/06/2024

4:50:32 PM

1,931.5000

4

AQEU

Genmab A/S

07/06/2024

4:50:34 PM

1,931.5000

8

CEUX

Genmab A/S

07/06/2024

4:50:34 PM

1,931.5000

23

XCSE

Genmab A/S

07/06/2024

4:50:36 PM

1,931.5000

5

XCSE

Genmab A/S

07/06/2024

4:50:43 PM

1,931.5000

45

XCSE

Genmab A/S

07/06/2024

4:50:52 PM

1,931.5000

13

AQEU

Genmab A/S

07/06/2024

4:50:52 PM

1,931.5000

3

AQEU

Genmab A/S

07/06/2024

4:51:01 PM

1,931.5000

3

CEUX

Genmab A/S

07/06/2024

4:51:07 PM

1,931.5000

31

CEUX

Genmab A/S

07/06/2024

4:51:07 PM

1,931.5000

4

AQEU

Genmab A/S

07/06/2024

4:51:11 PM

1,931.5000

9

CEUX

Genmab A/S

07/06/2024

4:51:11 PM

1,931.5000

7

AQEU

Genmab A/S

07/06/2024

4:51:13 PM

1,931.5000

25

CEUX

Genmab A/S

07/06/2024

4:51:16 PM

1,931.5000

6

XCSE

Genmab A/S

07/06/2024

4:51:21 PM

1,931.5000

40

CEUX

Genmab A/S

07/06/2024

4:51:32 PM

1,931.5000

2

CEUX

Genmab A/S

07/06/2024

4:51:32 PM

1,931.5000

7

AQEU

Genmab A/S

07/06/2024

4:51:32 PM

1,931.5000

7

AQEU

Genmab A/S

07/06/2024

4:51:32 PM

1,931.5000

56

XCSE

Genmab A/S

07/06/2024

4:51:32 PM

1,931.5000

49

XCSE

Genmab A/S

07/06/2024

4:51:32 PM

1,931.5000

4

CEUX

Genmab A/S

07/06/2024

4:51:32 PM

1,931.5000

44

CEUX

Genmab A/S

07/06/2024

4:51:32 PM

1,931.5000

50

CEUX

19


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

4:51:32 PM

1,931.5000

19

TQEX

Genmab A/S

07/06/2024

4:51:32 PM

1,931.5000

6

TQEX

Genmab A/S

07/06/2024

4:51:32 PM

1,931.5000

8

TQEX

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

39

CEUX

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

36

CEUX

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

3

CEUX

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

39

CEUX

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

8

CEUX

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

24

CEUX

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

15

CEUX

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

6

AQEU

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

20

AQEU

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

3

AQEU

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

16

XCSE

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

27

XCSE

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

35

XCSE

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

43

XCSE

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

103

XCSE

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

43

XCSE

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

43

XCSE

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

39

CEUX

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

15

CEUX

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

39

CEUX

Genmab A/S

07/06/2024

4:52:17 PM

1,935.5000

11

CEUX

Genmab A/S

07/06/2024

4:52:18 PM

1,935.5000

26

CEUX

Genmab A/S

07/06/2024

4:52:19 PM

1,935.5000

25

XCSE

Genmab A/S

07/06/2024

4:52:19 PM

1,935.5000

13

CEUX

Genmab A/S

07/06/2024

4:52:19 PM

1,935.5000

18

XCSE

Genmab A/S

07/06/2024

4:52:21 PM

1,935.5000

17

CEUX

Genmab A/S

07/06/2024

4:52:22 PM

1,935.5000

16

CEUX

Genmab A/S

07/06/2024

4:52:22 PM

1,935.5000

3

CEUX

Genmab A/S

07/06/2024

4:52:22 PM

1,935.5000

3

AQEU

Genmab A/S

07/06/2024

4:52:22 PM

1,935.5000

43

XCSE

Genmab A/S

07/06/2024

4:52:22 PM

1,935.5000

3

CEUX

Genmab A/S

07/06/2024

4:52:22 PM

1,935.5000

18

CEUX

Genmab A/S

07/06/2024

4:52:22 PM

1,935.5000

24

XCSE

Genmab A/S

07/06/2024

4:52:22 PM

1,935.5000

6

CEUX

Genmab A/S

07/06/2024

4:52:22 PM

1,935.5000

6

AQEU

Genmab A/S

07/06/2024

4:52:22 PM

1,935.5000

15

CEUX

20


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

4:52:22 PM

1,935.5000

6

AQEU

Genmab A/S

07/06/2024

4:52:22 PM

1,935.5000

19

XCSE

Genmab A/S

07/06/2024

4:52:26 PM

1,935.5000

14

XCSE

Genmab A/S

07/06/2024

4:52:26 PM

1,935.5000

34

CEUX

Genmab A/S

07/06/2024

4:52:41 PM

1,935.5000

1

AQEU

Genmab A/S

07/06/2024

4:52:41 PM

1,935.5000

4

AQEU

Genmab A/S

07/06/2024

4:53:13 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:13 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:13 PM

1,936.0000

8

CEUX

Genmab A/S

07/06/2024

4:53:14 PM

1,936.0000

1

CEUX

Genmab A/S

07/06/2024

4:53:14 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:14 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:14 PM

1,936.0000

9

XCSE

Genmab A/S

07/06/2024

4:53:14 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:14 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:14 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:14 PM

1,936.0000

9

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

46

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

6

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

8

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

3

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

AQEU

21


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

2

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

2

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

2

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

3

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

7

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

2

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

2

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

7

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

2

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

7

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

CEUX

22


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024

Graphic

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

7

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

2

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

4

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

4

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

4

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

CEUX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

1

AQEU

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

4

TQEX

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

9

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

2

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

7

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

24

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

24

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

17

XCSE

Genmab A/S

07/06/2024

4:53:17 PM

1,936.0000

5

XCSE

23