ADC Therapeutics has entered into securities purchase agreements for the sale of its equity securities to certain institutional investors, including new investor Bain Capital Life Sciences and existing investors Redmile, TCGX, and Nantahala Capital, in an $86.6 million private investment in public equity ("PIPE") financing. In the PIPE, ADC Therapeutics is selling 12.9 million common shares at $1.42 per share and pre-funded warrants to purchase 48.1 million common shares at $1.32, per pre-funded warrant, which is the price per common share in the PIPE minus the exercise price of CHF 0.08 per pre-funded warrant.
Gross proceeds from the PIPE, assuming cash exercise of the pre-funded warrants, are anticipated to be approximately $86.6 million before deducting placement agent fees and offering expenses. The PIPE is expected to close on October 22, 2026, subject to customary closing conditions. ADC Therapeutics intends to use the net proceeds from the PIPE to invest in continued funding of ZYNLONTA pipeline studies, including the Phase 3 trials in diffuse large B-cell lymphoma (ZYNLONTA plus glofitamab) and marginal zone lymphoma (ZYNLONTA monotherapy), and strengthen the balance sheet, in addition to funding working capital and general corporate purposes.
The offer and sale of the foregoing securities are made in a transaction not involving a public offering, and the foregoing securities have not been registered under the Securities Act of 1933, as amended (the "Securities Act") or applicable state securities laws, and are being offered and sold in reliance on Section 4(a)(2) of the Securities Act. The securities may not be reoffered or resold in the United States except pursuant to an effective registration statement or an applicable exemption from the registration requirements of the Securities Act and other applicable securities laws. ADC Therapeutics has agreed to file a registration statement with the Securities and Exchange Commission registering the resale of the common shares to be sold in the PIPE and the common shares issuable upon exercise of the pre-funded warrants to be sold in the PIPE.
Amendment to Royalty Purchase and Sale Agreement
On October 7, 2026, ADC Therapeutics entered into Amendment No. 2 (the "HCR Amendment") to its Purchase and Sale Agreement, dated August 25, 2021 (as amended from time to time, the "HCR Agreement"), with certain entities managed by HealthCare Royalty Management, LLC (collectively, "HCR"). To date, HCR has provided $300 million of funding to the Company. The HCR Amendment eliminates the $150 million payment otherwise required solely upon a change of control.
In addition, the HCR Amendment reduces the aggregate outstanding principal amount of third-party indebtedness of the Company, and its subsidiaries are permitted to incur to $50.0 million. An uncured breach of this debt limitation covenant entitles HCR to elect to receive the non-performance payment equaling 1.5 times the difference between the $300 million aggregate purchase price and royalty payments and other qualifying credited amounts actually received by HCR, subject to a cure period. The HCR Amendment also requires the Company, subject to shareholder approval and applicable legal and fiduciary duties, to use its best efforts to become a Delaware corporation. In addition, the HCR Amendment amends the warrants to purchase 9,834,776 common shares, which were issued on February 18, 2026, in connection with a previous amendment to the HCR Agreement (the "HCR Warrants"), by reducing the exercise price of the HCR Warrants from $3.8130 per share to $0.10 per share; by adding a provision that prohibits the exercise of the HCR Warrants if, upon giving effect to such exercise, the aggregate number of the Company's common shares beneficially owned by the holder (together with its affiliates and certain attribution parties) would exceed 4.99% (or, 61 days after a written notice from such holder, any other percentage not in excess of 9.99%) of the number of the Company's common shares outstanding immediately after giving effect to the exercise, as such percentage ownership is determined in accordance with the terms of the HCR Amendment; and removing the contractual restrictions on transfers of the HCR Warrants and shares issuable upon exercise of the HCR Warrants before January 1, 2028. The effectiveness of the HCR Amendment is conditioned upon the completion of the PIPE by October 31, 2026, and the effectiveness of the Loan Agreement Amendment. All other terms of the HCR Agreement remain unchanged including the ongoing royalty obligations which will continue until the Royalty Cap (as defined in the HCR Agreement).
Amendment to Loan Agreement
On October 7, 2026, ADC Therapeutics, certain subsidiaries of the Company, the lenders party thereto and Blue Owl Opportunistic Master Fund I, L.P., as administrative agent and collateral agent, entered into a second amendment (the "Loan Agreement Amendment") to the Loan Agreement and Guaranty, dated August 15, 2022 (as amended from time to time, the "Loan Agreement").
The Loan Agreement Amendment provides for the prepayment of $70.0 million principal amount of term loans under the Loan Agreement, plus accrued and unpaid interest with respect thereto and any related fees and premiums, inclusive of the Company's scheduled September 30, 2026, amortization payment. Immediately after such prepayment, the principal amount of outstanding term loans under the Loan Agreement will be $50.0 million. The Loan Agreement Amendment eliminates subsequent scheduled principal amortization, with the remaining principal payable at maturity unless earlier accelerated; eliminates the minimum liquidity covenant; and sets the minimum trailing four-quarter U.S. ZYNLONTA sales covenant at $65.0 million for the quarter ending December 31, 2026, and each quarter thereafter. The effectiveness of the Loan Agreement Amendment, including the consummation of the prepayment contemplated thereunder, is conditioned upon the completion of the PIPE.
In connection with the Loan Agreement Amendment, the Company entered into amendments to the warrants to purchase an aggregate of 527,295 common shares, which were issued on August 15, 2022, in connection with the Loan Agreement (the "Lender Warrants"). The amendments reduce the exercise price of the Lender Warrants from $8.30 per share to $1.00 per share (being the lesser of $1.00 per share and the price per common share in the PIPE). The effectiveness of the amendments to the Lender Warrants is conditioned upon the effectiveness of the Loan Agreement Amendment.
The company expects net product revenues from sales of ZYNLONTA to be approximately $21.0 million for the third quarter ended September 30, 2026 with cash and cash equivalents totaling $189.2 million as of September 30, 2026. On a proforma basis, giving effect to the estimated net cash proceeds from the PIPE of approximately $76.3 million (after deducting placement agent fees and estimated offering expenses), and the partial principal prepayment of $69.6 million (including fees) on the senior secured term loan, the Company would have had approximately $196 million of cash and cash equivalents as of that date.