Hans Peter Wild - May 15, 2025 Form 4 Insider Report for ADC Therapeutics SA (ADCT)

Role: 10%+ Owner
Signature: /s/ Dr. Hans-Peter Wild
Stock symbol: ADCT
Transactions as of: May 15, 2025
Transactions value $: $0
Form type: 4
Date filed: 5/19/2025, 03:52 PM
Previous filing: Jun 6, 2024
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
WILD HANS PETER	10%+ Owner	NEUGASSE 22, ZUG, SWITZERLAND	/s/ Dr. Hans-Peter Wild	2025-05-15	0000905538

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ADCT	Common Shares	Other		+9.79M			9.79M	May 15, 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Dr. Hans-Peter Wild ("Dr. Wild") holds a portion of the shares directly and another portion indirectly via HP Wild Holding AG ("HPW Holding") and HPWH TH AG ("HPWH"). The principal business of HPWH is holding investment rights in, directly or indirectly, ADCT. HPW Holding is an intermediary holding company and Dr. Wild is the Chairman of HPW Holding and HPWH. Thomas Pfisterer was a member of the Board of HPWH and held a total of 451,856 shares directly or indirectly in HPWH, but has transferred such ownership by way of an intragroup sale following Thomas Pfisterer stepping down from the Board of HPWH.

Content

Dr. Hans-Peter Wild ("Dr. Wild") holds a portion of the shares directly and another portion indirectly via HP Wild Holding AG ("HPW Holding") and HPWH TH AG ("HPWH"). The principal business of HPWH is holding investment rights in, directly or indirectly, ADCT. HPW Holding is an intermediary holding company and Dr. Wild is the Chairman of HPW Holding and HPWH. Thomas Pfisterer was a member of the Board of HPWH and held a total of 451,856 shares directly or indirectly in HPWH, but has transferred such ownership by way of an intragroup sale following Thomas Pfisterer stepping down from the Board of HPWH.