Exhibit 99.1 PacBio Announces First Quarter 2026 Financial Results MENLO PARK, Calif., May 7, 2026 (GLOBE NEWSWIRE) – PacBio (NASDAQ: PACB) today announced financial results for the quarter ended March 31, 2026. Recent Business Highlights "We continue to see increasing clinical adoption of HiFi which contributed to another record quarter for consumable revenue. However, instrument revenue, particularly Vega, was lower than we had expected," said Christian Henry, President and Chief Executive Officer. "Nonet ...