Quantum-Si Inc: demonstrates detection of 19 amino acids

What happened Quantum-Si Inc announced on Oct 8, 2026 that it has demonstrated detection of 19 amino acids in its Proteus development program. The company issued a press release on that date, and the press release was furnished as Exhibit 99.1 to the Current Report on Form 8-K.

Key details

• Item reported: Item 7.01, Regulation FD disclosure.
• Press release date: Oct 8, 2026.
• Exhibit furnished: Exhibit 99.1 (press release).
• Report signed by: /s/ Jeffry Keyes, Name: Jeffry Keyes, Title: Chief Financial Officer, Date: Oct 8, 2026.

Why it may matter Item 7.01 covers Regulation FD disclosure, which the filing uses to report information the company publicly distributed via a press release. The filing does not show why the insider traded or why the company acted.