# EDGAR Filing Document

**Accession Number:** 0001771910
**File Stem:** 0000950103-25-008512
**Filing Date:** 2025-7
**Character Count:** 2006
**Document Hash:** a5b3dcb50ef729c235212b55a147b9b2
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000950103-25-008512.hdr.sgml**: 20250806

**ACCESSION NUMBER**: 0000950103-25-008512

**CONFORMED SUBMISSION TYPE**: CORRESP

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20250707

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ADC Therapeutics SA
- **CENTRAL INDEX KEY:** 0001771910
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 000000000
- **STATE OF INCORPORATION:** V8
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** CORRESP

**BUSINESS ADDRESS:**
- **STREET 1:** BIOPOLE
- **STREET 2:** ROUTE DE LA CORNICHE 3B
- **CITY:** EPALINGES
- **STATE:** V8
- **ZIP:** 1066
- **BUSINESS PHONE:** 41 21 653 02 00

**MAIL ADDRESS:**
- **STREET 1:** BIOPOLE
- **STREET 2:** ROUTE DE LA CORNICHE 3B
- **CITY:** EPALINGES
- **STATE:** V8
- **ZIP:** 1066

![](image_001.jpg)

July 7, 2025<br><u>VIA EDGAR</u><br>

Securities and Exchange Commission<br> Division of Corporation Finance<br> 100 F Street, N.E.<br> Washington, D.C. 20549

Re: ADC Therapeutics SA<br> Registration Statement on Form S-3<br> Registration No. 333-288437

Ladies and Gentlemen:

In accordance with Rule 461 under the Securities Act of 1933, as amended, we hereby request acceleration of the effective date of the Registration Statement on Form S-3 (File No. 333-288437) (the "Registration Statement") of ADC Therapeutics SA. We respectfully request that the Registration Statement be declared effective as of 4:00 p.m., Eastern time, on July 9, 2025, or as soon as practicable thereafter.

Once the Registration Statement has been declared effective, please orally confirm that event with our counsel, Davis Polk & Wardwell LLP, by calling David Li at (212) 450-3861.

Thank you for your assistance in this matter.

Sincerely,

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| | |
|:---|:---|
| ADC Therapeutics SA | ADC Therapeutics SA |
| By: | /s/ Peter J. Graham |
|  | Name: Peter J. Graham |
|  | Title: Chief Legal Officer |

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