Quantum-Si incorporated (QSI) News
Follow Quantum-Si incorporated (QSI) news in one place: company catalysts, earnings, analyst actions and wider market developments. Review 15 public stories across 8 publication days to understand how the story developed. Public news appears after a 15-minute delay; LiveCast subscribers can follow new headlines and hear important updates without this additional delay.
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Quantum-Si reports quarterly results for period ended Sept. 30
The headline reports results for the quarter ended September 30; the supplied body adds no financial figures.
EQUITY | Nov 05, 2026, 11:35 PM UTC
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Quantum-Si 3Q 2026: Revenue $212K, EPS ($0.1) — 10-Q Summary
Quantum-Si’s revenue declined year over year in 3Q 2026 as customers deferred instrument and consumable purchases ahead of the expected Proteus launch. The net loss narrowed, primarily reflecting lower operating expenses
EARNINGS | Nov 05, 2026, 10:02 PM UTC
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Quantum-Si to report third-quarter 2026 results November 5
Quantum-Si plans to provide a business update and report its third-quarter 2026 financial results on November 5, 2026.
EQUITY | Oct 16, 2026, 12:00 PM UTC
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Quantum-Si regains compliance with Nasdaq minimum bid price requirement
Quantum-Si says it has regained compliance with Nasdaq’s minimum bid price requirement.
REGULATION | Oct 15, 2026, 01:00 PM UTC
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HC Wainwright & Co. reiterates Buy rating on Quantum-Si, $4 price target
HC Wainwright & Co. reiterated their Buy rating on Quantum-Si's stock with a price target of $4.00.The price target implies an upside of 403.1% from the Sep 28 close of $0.80.Key takeaways from the analyst noteStrong Per
EQUITY | Sep 29, 2026, 10:31 AM UTC
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Quantum-Si Presents Interim Proteus Data Showing Up to 60x Projected Alignments, Launch on Track for Q2 2027
Quantum-Si reported interim Proteus development results showing large performance gains versus Platinum Pro, with Proteus on track for a Q2 2027 launch.Key Highlights:Original SEC Filing: Quantum-Si Inc [ QSI ] - 8-K - S
REGULATION | Sep 29, 2026, 10:13 AM UTC
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Quantum-Si Incorporated (QSI) Reports Proteus Outperforms Platinum Pro on Key Metrics
Quantum-Si reported interim data showing its in-development Proteus platform outperformed Platinum Pro across accuracy, scale and peptide ID, including 30x more alignments per chamber and a 4.8x lower median false discov
CENTRAL_BANK | Sep 29, 2026, 12:18 AM UTC
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Quantum-Si Presents Interim Proteus™ Data at World HUPO 2026 Demonstrating a Significant Step Change in Performance Compared to Platinum® Pro
All measurable sequencing metrics show profound improvement over Platinum ProBRANFORD, Conn., Sept. 28, 2026 (GLOBE NEWSWIRE) -- Quantum-Si Incorporated NASDAQ:QSI (“Quantum-Si,” “QSI” or the “Company”), a proteomics com
NEWS | Sep 29, 2026, 12:18 AM UTC
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QSI - Quantum -Si Announces Detection of 18 Amino Acids Using a Developmental Sequencing Kit on Proteus™
QSI - Quantum -Si Announces Detection of 18 Amino Acids Using a Developmental Sequencing Kit on Proteus™
NEWS | Sep 15, 2026, 11:00 AM UTC
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Quantum-Si Expands Proteus™ Roadshow with Additional U.S. and European Cities
Growing Multi-City Program Continues to Increase Awareness of Proteus and Support Customer Funnel Development Ahead of Commercial LaunchBRANFORD, Conn., Sept. 09, 2026 (GLOBE NEWSWIRE) -- Quantum-Si Incorporated NASDAQ:Q
EQUITY | Sep 09, 2026, 12:04 PM UTC
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QSI - Quantum -Si Expands Proteus™ Roadshow with Additional U.S. and European Cities
QSI - Quantum -Si Expands Proteus™ Roadshow with Additional U.S. and European Cities
EQUITY | Sep 09, 2026, 12:01 PM UTC
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QSI to participate in H.C. Wainwright 28th Global Investment Conference
QSI says it will participate in the H.C. Wainwright 28th Annual Global Investment Conference, per a company announcement.
EQUITY | Aug 18, 2026, 12:00 PM UTC
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Quantum-Si delays Proteus launch to Q2 2027, cuts workforce 20%
Quantum-Si said it is delaying Proteus launch to Q2 2027 after an additional integrated instrument design cycle and is implementing a 20% workforce reduction to align costs.
EARNINGS | Aug 13, 2026, 09:48 PM UTC
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Quantum-Si affirms FY2026 sales guidance at $1.000M vs $1.033M est
Quantum-Si affirms its FY2026 sales outlook at $1.000 million versus a $1.033 million estimate.
EARNINGS | Aug 13, 2026, 08:05 PM UTC
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QSI Quantum-Si reports Q2 2026 results, updates Proteus™ development
QSI (Quantum-Si) reports its second-quarter 2026 financial results and provides a development update on its Proteus™ platform.
EARNINGS | Aug 13, 2026, 08:05 PM UTC