8-K current report · filed Feb 23, 2026

ADC Therapeutics SA (ADCT) 8-K Current Report: February 23, 2026

Item 1.01Item 3.02ADCT overview

Short answer

ADC Therapeutics SA (ADCT) filed an 8-K current report with the SEC on February 23, 2026 reporting Item 1.01 (Entry into a Material Definitive Agreement), Item 3.02 (Unregistered Sales of Equity Securities). HCR royalty deal amended: change-of-control payment slashed from up to $750M to $150M (before 2028) or $200M (after 2028).

ADC Therapeutics SA 8-K event analysis

AI summary of each reported item and its exhibits

Item 1.01 · Entry into a Material Definitive Agreement

  • HCR royalty deal amended: change-of-control payment slashed from up to $750M to $150M (before 2028) or $200M (after 2028)
  • Post-acquisition royalty obligations can be bought out for $525M (by end 2029) or $750M (by end 2030), less prior royalties paid and CoC payment
  • Amendment dramatically lowers upfront CoC cost, making ADCT a more attractive acquisition target by reducing deal friction
  • HCR originally provided $300M in funding; amended terms structurally favor a cleaner M&A exit for a potential acquirer

Item 3.02 · Unregistered Sales of Equity Securities

  • Warrants issued to HCR for 9,834,776 common shares at $3.8130/share, exercisable through Dec 31, 2030
  • Lock-up on warrant transfers and underlying shares until Dec 31, 2027: limits near-term selling pressure but caps HCR's flexibility
  • Change-of-control trigger: if all-cash/marketable securities deal, warrants auto-exercise immediately prior to closing; protects HCR in M&A
  • Company must file resale registration statement within 30 business days, creating future public float overhang of ~9.8M shares
  • Cashless exercise option available, but Swiss law constraints on freely distributable equity may limit share delivery in some scenarios

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