Quantum-Si incorporated (QSI)
Quantum-Si incorporated at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.
Quantum-Si incorporated (QSI) is a Biotechnology company based in US with a market capitalization of $165.4M. Revenue declined 20.3% year-over-year and free cash flow was negative at -$97.2M. This page tracks QSI's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.
US · 149 employees · IPO Nov 13, 2020
Valuation
Valuation & price
$0.89as of May 17, 2026· -66.2% vs 52w high
—
P/E ratio
Latest-FY diluted EPS
0.75
P/B ratio
Market cap ÷ book equity
—
Dividend yield
Price — last 12 months
Fundamentals
Key fundamentals
$165.4M
Market cap
-20.3%
Revenue growth (YoY)
47.3%
Gross margin
-$97.2M
Free cash flow (USD)
-$158.7M
Net debt
Net cash position
38.1%
Share dilution
2/5
Graham criteria passed
Defensive-investor screen
Healthcare
Sector
Trajectory
Long-term trends
Revenue by year
2019 → 2025
Free cash flow by year
2019 → 2025
Gross margin by year
2023 → 2025
Value screen
Graham defensive-investor tests
0
Insider buys · 90 days
4
Insider sells · 90 days
Earnings
Last report: 10-Q filed May 7, 2026
Next expected: not yet scheduled
On the tape
Recent SEC & insider activity
- 8-K eventJul 24, 2026Filing
Delisting Notice
- Insider sellJun 24, 2026Filing
Insider Sell $14KLaPointe Christian · GC & Corp. Secretary · $14.5K
- Insider sellJun 24, 2026Filing
Insider Sell $8KKeyes Jeffry R. · Chief Financial Officer · $7.6K
- Insider sellJun 24, 2026Filing
Insider Sell $21KHawkins Jeffrey Alan · Director, President & CEO · $21K
- Insider sellJun 24, 2026Filing
Insider Sell $28KVieceli John S. · Chief Product Officer · $28.1K
- 8-K eventJun 24, 2026Filing
Lease Agreement
- 8-K eventMay 15, 2026Filing
Annual Meeting Results
- 8-K eventMay 7, 2026Filing
Earnings Release
- Quarterly reportMay 7, 2026Filing
10-Q Filed
- Insider sellApr 22, 2026Filing
Insider Sell $168KHawkins Jeffrey Alan · Director, President & CEO · $167.5K
Questions
Frequently asked questions
What is Quantum-Si incorporated's market cap?
Quantum-Si incorporated (QSI) has a market capitalization of $165.4M.
What is QSI's P/E ratio?
A meaningful P/E ratio is not available for QSI — the company's latest fiscal-year earnings per share is zero, negative, or not yet cached.
What is QSI's price-to-book (P/B) ratio?
QSI trades at 0.75 times book value per share.
Are insiders buying QSI stock?
SEC Form 4 filings show no open-market insider buys at Quantum-Si incorporated in the last 90 days (4 sells).
Same arena
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Timeline
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News
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Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.