Filing Flows

Filing Flows › Quantum-Si (QSI) › R&D spending

Quantum-Si (QSI) R&D spending by quarter

Quantum-Si's R&D spending was $13.8M in Q3 2026 (third quarter 2026), -13% from Q2 2026. Over the last 7 quarters it ranged from $10.9M (Q4 2025) to $15.8M (Q2 2026).

Quantum-Si R&D spending by quarterQuantum-Si R&D spending by quarter$13.7MQ1 2025$15.2MQ2 2025$13.9MQ3 2025$10.9MQ4 2025$14.5MQ1 2026$15.8MQ2 2026$13.8MQ3 2026
QuarterR&D spendingQ/QY/Y
Q3 2026$13.8M-13%-0.7%
Q2 2026$15.8M+9%+4%
Q1 2026$14.5M+32%+6%
Q4 2025$10.9M-21%—
Q3 2025$13.9M-9%—
Q2 2025$15.2M+11%—
Q1 2025$13.7M——

Q3 2026 at a glance

Quantum-Si, Q3 2026: revenue $212K (-62% year over year), net loss $22.3M, operating cash flow −$20.5M. The chart follows the revenue to costs, profit and cash.

Questions

What is Quantum-Si's R&D spending?

Quantum-Si's R&D spending was $13.8M in Q3 2026 (third quarter 2026), -13% from Q2 2026.

How has Quantum-Si's R&D spending changed?

Over the last 7 quarters it ranged from $10.9M (Q4 2025) to $15.8M (Q2 2026).

Q3 2026 results → · How Quantum-Si makes money →