Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]

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

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of May 2024

COMMISSION FILE NUMBER 001-38455

MorphoSys AG

Semmelweisstrasse 7

82152 Planegg

Germany

(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 x Form 40-F ¨

On May 31, 2024, MorphoSys AG (the “Company”) published a notification of major holdings from UBS Group AG.

Exhibits

99.1 Notification of Major Holdings from UBS Group AG

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 by the undersigned, thereunto duly authorized.

MORPHOSYS AG (Registrant)

Date: May 31, 2024

By: /s/ i.A. Inge Altinger-Ralle

Name: Inge Altinger-Ralle

Title: Specialist Corporate Publishing

By: /s/ i.A. Robert Mayer

Name: Robert Mayer

Title: Director Investor Relations

Voting Rights Announcements | 31 May 2024 16:00 MorphoSys AG MorphoSys AG: Release according to Article 40, Section 1 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution 31.05.2024 / 16:00 CET/CEST Dissemination of a Voting Rights Announcement transmitted by EQS News - a service of EQS Group AG. The issuer is solely responsible for the content of this announcement. Notification of Major Holdings 1. Details of issuer 2. Reason for notification 3. Details of person subject to the notification obligation MorphoSys AG MorphoSys AG: Release according to Article 40, Section 1 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution Name: MorphoSys AG Street: Semmelweisstr. 7 Postal code: 82152 City: Planegg Germany Legal Entity Identifier (LEI): 529900493806K77LRE72 X Acquisition/disposal of shares with voting rights Acquisition/disposal of instruments Change of breakdown of voting rights Other reason:

4. Names of shareholder(s) holding directly 3% or more voting rights, if different from 3. 5. Date on which threshold was crossed or reached: 6. Total positions 7. Details on total positions a. Voting rights attached to shares (Sec. 33, 34 WpHG) b.1. Instruments according to Sec. 38 (1) no. 1 WpHG Legal entity: UBS Group AG City of registered office, country: Zurich, Switzerland 24 May 2024 % of voting rights attached to shares (total of 7.a.) % of voting rights through instruments (total of 7.b.1 + 7.b.2) Total of both in % (7.a. + 7.b.) Total number of voting rights pursuant to Sec. 41 WpHG New 2.98 % 3.66 % 6.64 % 37716423 Previous notification 3.06 % 3.63 % 6.70 % / ISIN Absolute In % Direct (Sec. 33 WpHG) Indirect (Sec. 34 WpHG) Direct (Sec. 33 WpHG) Indirect (Sec. 34 WpHG) DE0006632003 0 699668 0.00 % 1.86 % US6177602025 0 425328 0.00 % 1.13 % Total 1124996 2.98 % Type of instrument Expiration or maturity date Exercise or conversion period Voting rights absolute Voting rights in % Right to Recall over Lent At any time 2192 0.01 %

b.2. Instruments according to Sec. 38 (1) no. 2 WpHG Shares (DE000663200 3) Right of Use over Shares (DE000663200 3) At any time 224356 0.59 % Right of use over ADRs (US617760202 5) At any time 279919 0.74 % Right to Recall over ADRs (US617760202 5) At any time 68875 0.18 % Total 575342 1.53 % Type of instrument Expiration or maturity date Exercise or conversion period Cash or physical settlement Voting rights absolute Voting rights in % Convertible bonds (DE000A3H2 XW6) 16/10/2025 25/11/2020 - 30/08/2025 Physical 318379 0.84 % Right of use over convertible bonds (CH1286962 597) At any time Cash 3514 0.01 % Right of use over convertible bonds (DE000A3H2 XW6) At any time Physical 482138 1.28 %

8. Information in relation to the person subject to the notification obligation Total 804031 2.13 % Person subject to the notification obligation is not controlled nor does it control any other undertaking(s) that directly or indirectly hold(s) an interest in the (underlying) issuer (1.). X Full chain of controlled undertakings starting with the ultimate controlling natural person or legal entity: Name % of voting rights (if at least 3% or more) % of voting rights through instruments (if at least 5% or more) Total of both (if at least 5% or more) UBS Group AG % % % UBS AG % % % UBS Switzerland AG % % % - % % % UBS Group AG % % % UBS AG % % % UBS Asset Management AG % % % UBS Asset Management Holding (No. 2) Ltd % % % UBS Asset Management Holding Ltd % % % UBS Asset Management (UK) Limited % % % - % % %

UBS Group AG % % % UBS AG % % % UBS Asset Management AG % % % UBS Asset Management Switzerland AG % % % UBS Fund Management (Switzerland) AG % % % - % % % UBS Group AG % % % UBS AG % % % UBS Americas Holding LLC % % % UBS Americas Inc. % % % UBS Securities LLC % % % - % % % UBS Group AG % % % UBS AG % % % UBS Asset Management AG % % % UBS Fund Management (Luxembourg) S.A. % % % - % % % UBS Group AG % % % UBS AG % % % UBS Americas Holding LLC % % % UBS Americas Inc. % % %

9. In case of proxy voting according to Sec. 34 para. 3 WpHG (only in case of attribution of voting rights in accordance with Sec. 34 para. 1 sent. 1 No. 6 WpHG) Date of general meeting: Holding total positions after general meeting (6.) after annual general meeting: 10. Other explanatory remarks: Date 31.05.2024 CET/CEST The EQS Distribution Services include Regulatory Announcements, Financial/Corporate News and Press Releases. Archive at www.eqs-news.com Language: English Company: MorphoSys AG Semmelweisstr. 7 82152 Planegg Germany Internet: www.morphosys.com End of News EQS News Service UBS Financial Services Inc. % % % Proportion of voting rights Proportion of instruments Total of both % % % 29 May 2024