6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 6-K

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REPORT OF FOREIGN PRIVATE ISSUER

Pursuant to Rule 13a-16 or 15d-16

of the Securities Exchange Act of 1934

February 9, 2026

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NOVO NORDISK A/S

(Exact name of Registrant as specified in its charter)

Novo Allé 1

DK- 2880, Bagsvaerd

Denmark

(Address of principal executive offices)

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

Novo Nordisk A/S – Share repurchase programme

Bagsværd, Denmark, 9 February 2026 – On 4 February 2026, Novo Nordisk initiated a share repurchase programme in accordance with Article 5 of Regulation No 596/2014 of the European Parliament and Council of 16 April 2014 (MAR) and the Commission Delegated Regulation (EU) 2016/1052 of 8 March 2016 (the "Safe Harbour Rules"). This programme is part of the overall share repurchase programme of up to DKK 15 billion to be executed during a 12-month period beginning 4 February 2026.

Under the programme initiated 4 February 2026, Novo Nordisk will repurchase B shares for an amount up to DKK 3.8 billion in the period from 4 February 2026 to 4 May 2026.

Since the announcement of the programme, the following transactions have been made:

The details for each transaction made under the share repurchase programme are published on novonordisk.com.

Transactions related to Novo Nordisk’s incentive programmes have resulted in a net transfer from Novo Nordisk of 3,841,954 B shares in the period from 4 February 2026 to 6 February 2026. The shares in these transactions were not part of the Safe Harbour repurchase programme.

With the transactions stated above, Novo Nordisk owns a total of 18,283,326 B shares of DKK

0.10 as treasury shares, corresponding to 0.4% of the share capital. The total amount of A and B shares in the company is 4,465,000,000 including treasury shares.

Novo Nordisk expects to repurchase B shares for an amount up to DKK 15 billion during a 12-month period beginning 4 February 2026. As of 6 February 2026, Novo Nordisk has since 4 February 2026 repurchased a total 750,000 B shares at an average share price of DKK 296.40 per B share equal to a transaction value of DKK 222,297,903.

Novo Nordisk is a leading global healthcare companyfounded in 1923 and headquartered in Denmark. Our purpose is to drive change to defeat serious chronic diseases built upon our heritagein diabetes. We do so by pioneering scientific breakthroughs, expanding access to our medicines and working to prevent and ultimatelycure disease. Novo Nordisk employs about 68,800 people in 80 countries and markets its products in around 170 countries. Novo Nordisk'sB shares are listed on Nasdaq Copenhagen (Novo-B). Its ADRs are listed on the New York Stock Exchange (NVO). For more information, visitnovonordisk.com, Facebook, Instagram, X, LinkedIn and YouTube.

Contacts for further information

Company announcement No 08 / 2026

SIGNATURES

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