EX-99.1(A) 3 tmb-20240521xex99d1a.htm EX-99.1(A)

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