0001140361-25-023514.txt : 20250624 0001140361-25-023514.hdr.sgml : 20250624 20250624191115 ACCESSION NUMBER: 0001140361-25-023514 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20250623 FILED AS OF DATE: 20250624 DATE AS OF CHANGE: 20250624 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Vieceli John S. CENTRAL INDEX KEY: 0002032947 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-39486 FILM NUMBER: 251070511 MAIL ADDRESS: STREET 1: 29 BUSINESS PARK DR. CITY: BRANFORD STATE: CT ZIP: 06405 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Quantum-Si Inc CENTRAL INDEX KEY: 0001816431 STANDARD INDUSTRIAL CLASSIFICATION: MEASURING & CONTROLLING DEVICES, NEC [3829] ORGANIZATION NAME: 08 Industrial Applications and Services EIN: 851388175 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 29 BUSINESS PARK DRIVE CITY: BRANFORD STATE: CT ZIP: 06405 BUSINESS PHONE: (203) 458-7100 MAIL ADDRESS: STREET 1: 29 BUSINESS PARK DRIVE CITY: BRANFORD STATE: CT ZIP: 06405 FORMER COMPANY: FORMER CONFORMED NAME: HighCape Capital Acquisition Corp. DATE OF NAME CHANGE: 20200629 4 1 form4.xml FORM 4 X0508 4 2025-06-23 0001816431 Quantum-Si Inc QSI 0002032947 Vieceli John S. C/O QUANTUM-SI INCORPORATED 29 BUSINESS PARK DRIVE BRANFORD CT 06405 true Chief Product Officer false Class A Common Stock 2025-06-23 4 S 0 21923 1.6139 D 842586 D Represents shares sold pursuant to a mandatory Quantum-Si sell-to-cover provision for required federal, state and local withholding taxes in connection with the vesting of previously granted restricted stock units. Individual is not able to alter this mandatory sell-to-cover provision that is enacted at the grant date of the related restricted stock unit award. Represents the weighted average sales price per share. The shares sold at prices ranging from $1.55 to $1.68 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder of the Issuer. /s/ Christian LaPointe, Ph.D., Attorney-in-Fact. 2025-06-24