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 29, 2024, MorphoSys AG (the “Company”) published three notifications of major holdings from UBS Group AG, The Goldman Sachs Group, Inc. and Morgan Stanley.

Exhibits

99.1 Notification of Major Holdings from UBS Group AG

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

99.3 Notification of Major Holdings from Morgan Stanley

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 29, 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 | 29 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 29.05.2024 / 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 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: UBS Group AG City of registered office, country: Zurich, Switzerland 23 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 3.06 % 3.63 % 6.70 % 37716423 Previous notification 8.63 % 5.07 % 13.70 % / ISIN Absolute In % Direct (Sec. 33 WpHG) Indirect (Sec. 34 WpHG) Direct (Sec. 33 WpHG) Indirect (Sec. 34 WpHG) DE0006632003 0 750947 0.00 % 1.99 % US6177602025 0 404840 0.00 % 1.07 % Total 1155787 3.06 % 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 200190 0.53 % Right of use over ADRs (US617760202 5) At any time 295011 0.78 % Right to Recall over ADRs (US617760202 5) At any time 68875 0.18 % Total 566268 1.50 % 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 63219 0.17 % 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 737299 1.95 %

8. Information in relation to the person subject to the notification obligation Total 804032 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. % % %

Voting Rights Announcements | 29 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 29.05.2024 / 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 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 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: The Goldman Sachs Group, Inc. City of registered office, country: Wilmington, DE, United States of America (USA) 23 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 0.02 % 5.98 % 6.002 % 37716423 Previous notification 5.01 % 7.23 % 12.24 % / ISIN Absolute In % Direct (Sec. 33 WpHG) Indirect (Sec. 34 WpHG) Direct (Sec. 33 WpHG) Indirect (Sec. 34 WpHG) US6177602025 0 5712 0.00 % 0.02 % DE0006632003 0 800 0.00 % 0.002 % Total 6512 0.02 % Type of instrument Expiration or maturity date Exercise or conversion period Voting rights absolute Voting rights in % Right To Recall Open 1497976 3.97 % Right Of Use Open 219612 0.58 %

b.2. Instruments according to Sec. 38 (1) no. 2 WpHG 8. Information in relation to the person subject to the notification obligation Convertible Bond 16.10.2025 311355 0.83 % Total 2028944 5.38 % Type of instrument Expiration or maturity date Exercise or conversion period Cash or physical settlement Voting rights absolute Voting rights in % Call Warrant 31.12.2030 Cash 59094 0.16 % Swap 22.05.2034 Cash 169181 0.45 % Total 228275 0.61 % 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. % % % Goldman Sachs (UK) L.L.C. % % % Goldman Sachs Group UK Limited % % % Goldman Sachs International Bank % % %

10. Other explanatory remarks: Date 29.05.2024 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 Proportion of voting rights Proportion of instruments Total of both % % % 28 May 2024

Voting Rights Announcements | 29 May 2024 16:02 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 29.05.2024 / 16:02 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 X Other reason: Shares Tendered to public offer

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) 23 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 1.76 % 1.71 % 3.47 % 37716423 Previous notification 5.24 % 2.32 % 7.56 % / ISIN Absolute In % Direct (Sec. 33 WpHG) Indirect (Sec. 34 WpHG) Direct (Sec. 33 WpHG) Indirect (Sec. 34 WpHG) DE0006632003 0 662317 0.00 % 1.76 % Total 662317 1.76 % 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 598690 1.59 %

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 598690 1.59 % 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 25.10.2024 to 13.07.2026 at any time Cash 46999 0.12 % Total 47000 0.12 % 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 % % % - % % % 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 29.05.2024 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 - % % % Morgan Stanley % % % Morgan Stanley Capital Management, LLC % % % Morgan Stanley Smith Barney LLC % % % Proportion of voting rights Proportion of instruments Total of both % % % The notification was triggered following the successful completion of the first tender period of MorphoSys AG by Novartis BidCo AG, resulting in a disposal of client securities over which Morgan Stanley & Co. International plc and Morgan Stanley & Co. LLC had a right of use and additionally a disposal of shares with voting rights. 28 May 2024