0001861795 2026-04-03 2026-04-03 0001861795 false 8-K 2026-04-03 Definitive Healthcare Corp. 1-40815 DE 86-3988281 492 Old Connecticut Path, Suite 401 Framingham MA 01701 508 720-4224 false false false false Class A Common Stock, $0.001 par value DH NASDAQ false