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 23, 2024, MorphoSys AG (the “Company”) published two notifications of major holdings from Morgan Stanley and The Goldman Sachs Group, Inc.

Exhibits

99.1 Notification of Major Holdings from Morgan Stanley

99.2 Notification of Major Holdings from The Goldman Sachs Group, Inc.

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 23, 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 | 23 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 23.05.2024 / 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 Acquisition/disposal of shares with voting rights X 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: Morgan Stanley City of registered office, country: Wilmington, Delaware, United States of America (USA) Morgan Stanley & Co. International plc 16 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 4.43 % 2.36 % 6.79 % 37716423 Previous notification 4.15 % 7.36 % 11.51 % / ISIN Absolute In % Direct (Sec. 33 WpHG) Indirect (Sec. 34 WpHG) Direct (Sec. 33 WpHG) Indirect (Sec. 34 WpHG) DE0006632003 0 1670360 0.00 % 4.43 % Total 1670360 4.43 % Type of instrument Expiration or maturity date Exercise or conversion period Voting rights absolute Voting rights in % Right of recall over securities at any time at any time 741837 1.97 %

b.2. Instruments according to Sec. 38 (1) no. 2 WpHG 8. Information in relation to the person subject to the notification obligation lending agreements Total 741837 1.97 % Type of instrument Expiration or maturity date Exercise or conversion period Cash or physical settlement Voting rights absolute Voting rights in % Retail Structured Product 28.03.2067 at any time Cash 1 0.00 % Equity Swap From 06.09.2024 to 15.03.2027 at any time Cash 148818 0.39 % Total 148819 0.39 % 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) Morgan Stanley % % % Morgan Stanley Capital Management, LLC % % %

Morgan Stanley Domestic Holdings, LLC % % % Morgan Stanley Capital Services LLC % % % - % % % Morgan Stanley % % % Morgan Stanley Capital Management, LLC % % % Morgan Stanley & Co. LLC % % % - % % % Morgan Stanley % % % Morgan Stanley International Holdings Inc. % % % Morgan Stanley International Limited % % % Morgan Stanley Investments (UK) % % % Morgan Stanley & Co. International plc 3.22 % % % - % % % Morgan Stanley % % % Morgan Stanley Capital Management, LLC % % % Morgan Stanley & Co. LLC % % % Prime Dealer Services Corp. % % %

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 23.05.2024 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 - % % % Morgan Stanley % % % Morgan Stanley Capital Management, LLC % % % Morgan Stanley Smith Barney LLC % % % Proportion of voting rights Proportion of instruments Total of both % % % 22 May 2024

Internet: www.morphosys.com End of News EQS News Service

Voting Rights Announcements | 23 May 2024 16:01 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 23.05.2024 / 16:01 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 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 Acquisition/disposal of shares with voting rights X Acquisition/disposal of instruments Change of breakdown of voting rights X Other reason: Voluntary group notification with triggered threshold on subsidiary level

3. Details of person subject to the notification obligation 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: The Goldman Sachs Group, Inc. City of registered office, country: Wilmington, DE, United States of America (USA) Goldman Sachs International 16 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 6.59 % 8.87 % 15.46 % 37716423 Previous notification 6.12 % 9.55 % 15.67 % / ISIN Absolute In % Direct (Sec. 33 WpHG) Indirect (Sec. 34 WpHG) Direct (Sec. 33 WpHG) Indirect (Sec. 34 WpHG) DE0006632003 0 2485926 0.00 % 6.59 % US6177602025 0 7 0.00 % 0.00002 % Total 2485933 6.59 % Type of instrument Expiration or maturity date Exercise or conversion period Voting rights absolute Voting rights in %

b.2. Instruments according to Sec. 38 (1) no. 2 WpHG 8. Information in relation to the person subject to the notification obligation Right To Recall Open 1019478 2.70 % Right Of Use Open 166775 0.44 % Convertible Bond 16.10.2025 845597 2.24 % Total 2031850 5.39 % Type of instrument Expiration or maturity date Exercise or conversion period Cash or physical settlement Voting rights absolute Voting rights in % Put Option 19.12.2025 Physical 900000 2.39 % Swap 15.05.2034 Cash 338421 0.90 % Call Warrant 31.12.2030 Cash 74710 0.20 % Total 1313131 3.48 % 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) The Goldman Sachs Group, Inc. % % % GSAM Holdings LLC % % % Goldman Sachs Asset Management, % % %

L.P. - % % % The Goldman Sachs Group, Inc. % % % Goldman Sachs (UK) L.L.C. % % % Goldman Sachs Group UK Limited % % % Goldman Sachs International Bank % % % - % % % The Goldman Sachs Group, Inc. % % % Goldman Sachs Bank USA % % % Goldman Sachs Bank Europe SE % % % - % % % The Goldman Sachs Group, Inc. % % % Folio Financial, Inc. % % % Folio Investments, Inc. % % % - % % % The Goldman Sachs Group, Inc. % % % Goldman Sachs & Co. LLC % % % - % % % The Goldman Sachs Group, 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 23.05.2024 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 Goldman Sachs (UK) L.L.C. % % % Goldman Sachs Group UK Limited % % % Goldman Sachs International 5.43 % 5.19 % 10.62 % Proportion of voting rights Proportion of instruments Total of both % % % 22 May 2024