adc-20260630

Table of Contents

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-Q

(Mark One)


☒			QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
			For the quarterly period ended June 30, 2026
OR
☐			TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
			For the transition period from to

Commission File Number: 001-39071

ADC Therapeutics SA
(Exact name of registrant as specified in its charter)


Switzerland			Not Applicable
(State or other jurisdiction of incorporation or organization)			(I.R.S. Employer Identification No.)

Biopôle Route de la Corniche 3B 1066 Epalinges Switzerland (Address of principal executive offices) (Zip code)			+41 21 653 02 00 (Registrant’s telephone number)

N/A

(Former name or former address, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading symbol(s)

Name of each exchange on which registered

Common Shares, par value CHF 0.08 per share

ADCT

The New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer

☐

Accelerated filer

☐

Non-accelerated filer

☒

Smaller reporting company

☒

Emerging growth company

☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

The number of common shares outstanding was 127,667,695 as of August 3, 2026.

Table of Contents


PART I: FINANCIAL INFORMATION			1
Condensed Consolidated Balance Sheets (Unaudited) - June 30, 2026 and December 31, 2025			1
Condensed Consolidated Statements of Operations (Unaudited) - Three and six months ended June 30, 2026 and 2025			2
Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - Three and six months ended June 30, 2026 and 2025			3
Condensed Consolidated Statements of Changes in Shareholders’ (Deficit) Equity (Unaudited) - Three and six months ended June 30, 2026 and 2025			4
Condensed Consolidated Statements of Cash Flows (Unaudited) - Six months ended June 30, 2026 and 2025			6
Notes to the Condensed Consolidated Financial Statements (Unaudited)			7
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations			21
Item 3. Quantitative and Qualitative Disclosures About Market Risk			32
Item 4. Controls and Procedures			32
PART II: OTHER INFORMATION			33
Item 1. Legal Proceedings			33
Item 1A. Risk Factors			33
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds			33
Item 3. Defaults Upon Senior Securities			33