Adaptive Biotechnologies Corporation Announces Proposed Convertible Senior Notes Offering

SEATTLE, June 15, 2026 (GLOBE NEWSWIRE) -- Adaptive Biotechnologies Corporation (“Adaptive Biotechnologies”) (Nasdaq: ADPT) today announced its intention to offer, subject to market and other conditions, $250 million aggregate principal amount of convertible senior notes due 2031 (the “notes”) in a private offering to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “Securities Act”). Adaptive Biotechnologies also expects to grant the initial purchasers of the notes an option to purchase, for settlement within a period of 13 days from, and including, the date the notes are first issued, up to an additional $37.5 million aggregate principal amount of notes.