Quantum-Si Inc

QSI · Nasdaq · SIC 3829: Measuring & Controlling Devices, NEC · Market Cap: $0.2B · 145 employees
132
SEC Filings
$0.8343
Close 2026-09-25
145
Employees

Business Summary

Quantum-Si Incorporated is a life sciences company focused on proteomics research, offering a proprietary single-molecule detection platform for next-generation protein sequencing (NGPS). Its current product line includes the Platinum and Platinum Pro benchtop sequencers, Platinum Analysis Software, and consumable kits. The company is developing Proteus, a next-generation platform anticipated to launch by end of 2026, targeting researchers with faster, lower-cost protein sequencing versus legacy mass spectrometry solutions.

Latest Stock Quote

QSI 2026-09-25 $0.8343 O:$0.7943 H:$0.84 L:$0.775501 Vol:2.6M VWAP:$0.81
origin leaf: null

Next Earnings

Q2 FY2026 — expected 2026-09-14

Annual Reports (10-K)

FiledPeriodAccessionSourceFull Text
2026-03-032025-12-310001816431-26-000011EDGAR78K words
2025-03-032024-12-310001816431-25-000014EDGAR77K words
2024-02-292023-12-310001140361-24-010438EDGAR85K words
2023-03-172022-12-310001140361-23-012126EDGAR—
2022-03-012021-12-310001140361-22-007334EDGAR—
2021-03-302020-12-310001104659-21-044037EDGAR—

Quarterly Reports (10-Q)

FiledPeriodAccessionSourceFull Text
2026-08-132026-06-300001816431-26-000056EDGAR21K words
2025-11-052025-09-300001816431-25-000066EDGAR24K words
2025-08-052025-06-300001816431-25-000050EDGAR21K words
2025-05-152025-03-310001816431-25-000040EDGAR18K words
2024-11-122024-09-300001816431-24-000020EDGAR21K words
2024-08-072024-06-300001628280-24-035626EDGAR19K words
2024-05-092024-03-310001140361-24-025201EDGAR21K words
2023-11-092023-09-300001140361-23-052474EDGAR25K words
2023-08-072023-06-300001140361-23-038382EDGAR23K words
2023-05-112023-03-310001140361-23-024185EDGAR23K words
2022-11-082022-09-300001140361-22-040513EDGAR—
2022-08-082022-06-300001140361-22-028744EDGAR—

Recent Current Reports (8-K)

FiledAccessionSourceFull Text
2026-08-130001816431-26-000053EDGAR4K words
2026-07-240001816431-26-000049EDGAR1K words
2026-03-030001816431-26-000009EDGAR4K words
2025-12-290001816431-25-000074EDGAR1K words
2025-11-200001816431-25-000071EDGAR4K words
2025-11-050001816431-25-000065EDGAR4K words
2025-09-290001140361-25-036498EDGAR1K words
2025-09-260001816431-25-000060EDGAR1K words
2025-08-080001816431-25-000056EDGAR1K words
2025-08-050001816431-25-000048EDGAR4K words

132 total filings indexed. 104 additional filings (S-1, DEF 14A, etc.) View all (JSON) · SEC EDGAR

Sector Peers

MASS — 908 Devices Inc. AATC — AUTOSCOPE TECHNOLOGIES CORP APM — Aptorum Group Ltd BCHT — Birchtech Corp. GEOS — GEOSPACE TECHNOLOGIES CORP MIR — Mirion Technologies, Inc. ONTO — ONTO INNOVATION INC. OWLT — Owlet, Inc.

Tags

proteomics-research protein-identification protein-expression-and-quantification proteoforms-and-post-translational-modifications life-sciences-research biomarker-discovery drug-discovery-and-development

Company Identity

CIK0001816431
TickerQSI
ExchangeNasdaq
SIC3829: Measuring & Controlling Devices, NEC
IncorporatedDE
Websitehttps://www.quantum-si.com
Listed2021-06-11

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This is a static snapshot. For live, structured JSON with cryptographic provenance chain:

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JSON Profile Stock Quote Origin Record
Origin Provenance
page leaf: 3b0f2f7bd8e58a43cf2e4d40c75ea9edc7aaec671cdbc963762576f8a2944b0a
parent: a12cf19f8cfe3d13e1886a3975465e3e3fcd47758617e8a551213d21e06fc336
content hash: f100746b44f77cb86b86918074699493ac739563751f9d08c047d648f6dd96bf
signed: 2026-09-28T19:02:45.736Z
sources: 18 verified data leaves
chain: SEC.gov PEM → origin.rootz.global extraction → this page
verify: sha256(content_hash + parent + timestamp) = leaf

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