Abbott disclosed a $20 billion senior notes offering intended to help finance its pending $23 billion acquisition of Exact Sciences. The debt package spans multiple tranches and maturities and names Morgan Stanley, Barclays, BofA Securities and J.P. Morgan as underwriters. Abbott said proceeds will also repay certain Exact Sciences indebtedness and support general corporate purposes. The financing move formalizes the balance‑sheet plan behind one of the sector’s largest diagnostics deals and signals confidence in completing the transaction in the second quarter of 2026 following shareholder approval. The disclosure comes from SEC filings reviewed by financial press.