Quantum-Si Presents Interim Proteus™ Data at World HUPO 2026 Demonstrating a Significant Step Change in Performance Compared to Platinum® Pro

BRANFORD, Conn., Sept. 28, 2026 (GLOBE NEWSWIRE) -- Quantum-Si Incorporated (Nasdaq: QSI) (“Quantum-Si,” “QSI” or the “Company”), a proteomics company redefining protein analysis through single-molecule protein sequencing, today announced interim development results comparing its next-generation Proteus™ platform with its commercially available Platinum^® Pro instrument. Using a developmental sequencing kit that detects 18 amino acids, Proteus significantly outperformed Platinum Pro across every key measure, from sequencing scale and accuracy to peptide identification and protein sequence coverage, even though the Proteus instrument, consumable, loading protocol and analysis software are still in development and not yet fully optimized. The data will be presented by Jeff Hawkins, President and Chief Executive Officer, at a lunchtime seminar at the 2026 World HUPO Congress in Singapore on Tuesday, September 29, 2026, at 12:15 Singapore Time (SGT) in Room 330.