Company: GNMSF
Filing Date: 2025-02-12
Form Type: S-8
Source: 0000947871-25-000131
Chunk: 0

Company: GENMAB A/S
Filing Date: 2025-02-12
Form: S-8
Chunk 0
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<div align='center'>As filed with the Securities and Exchange Commission on February 12, 2025</div>

Registration No. 333-

<div align='center'>UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933

GENMAB A/S(Exact name of registrant as specified in its charter)</div>

| The Kingdom of Denmark            
 (State or other jurisdiction      
 of incorporation or organization) | Carl Jacobsens Vej 30           
 2500 Valby                      
 Denmark                         
 (Address of Principal Executive 
 Offices, including zip code)    | Not Applicable      
 (I.R.S. Employer    
 Identification No.) |

<div align='center'>Genmab A/S 2021 Restricted Stock Units Program
Genmab A/S 2021 Warrant Scheme(Full title of the plans)

Genmab US, Inc.
777 Scudders Mill Road
Plainsboro, NJ 08536(Name and address of agent for service)
(609) 430-2481(Telephone number, including area code, of agent for service)

With a copy to:Doreen E. Lilienfeld, Esq.
Allen Overy Shearman Sterling, LLP
599 Lexington Avenue
New York, NY 10022
(212) 848-4000</div>

Indicate by check mark whether the registrant is a large accelerated
filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of
“large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth
company” in Rule 12b-2 of the Exchange Act.

| Large accelerated filer | ☒ | Accelerated filer         | ☐ |
| Non-accelerated filer   | ☐ | Smaller reporting company | ☐ |
|                         |   | Emerging growth company   | ☐ |

If an emerging growth company, indicate by check mark if the registrant
has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant
to Section 7(a)(2)(B) of the Securities Act. ❑

<div align='center'>PART I
INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS</