QSI insider trading
NasdaqGM HealthcareQuantum-Si Inc: insider trade history from SEC Form 4 filings.
About Quantum-Si Inc
Quantum-Si incorporated, a life sciences company, engages in the development of single-molecule detection platform to enable Next Generation Protein Sequencing (NGPS). The company offers Platinum NGPS instrument that provides single molecule amino acid level resolution with a streamlined workflow, including automated data analysis that accessible to researchers in all laboratory types; Platinum Pro NGPS instrument, a single molecule amino acid resolution, which provides an enhanced user interface, cloud or on instrument data analysis and an available pro mode; Library preparation kits to prepare protein sample for sequencing; Barcoding Kits to optimize the workflow and performance of technology; and Sequencing Kits contains the reagents and consumables used to perform NGPS on the Platinum or Platinum Pro instrument. It also provides Platinum Analysis Software, a cloud-based solution that automates data analysis workflows and provides a user-friendly interface and visualization of the sequencing results. Its products are used in antibody characterization, biomarker identification, protein identification, protein variants, protein barcoding, and post translational modification analysis applications. Quantum-Si incorporated was founded in 2013 is headquartered in Branford, Connecticut.
Company website: www.quantum-si.com
QSI insider activity at a glance
FilingIQ tracks 137 insider transactions for QSI in filings since Jun 14, 2021. The most recent transaction is dated Sep 22, 2026.
Across the full history, 13 open-market purchases
and 71 open-market sales
were filed under transaction codes P and S respectively. Compensatory share awards
(code A) and option exercises (code M) are tracked separately and not counted here.
The average FilingIQ composite score on QSI insider trades is 57.1/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.
Latest QSI Form 4 filings
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Frequently asked
- How many insider trades does FilingIQ track for QSI?
- FilingIQ tracks 137 Form 4 insider transactions for QSI (Quantum-Si Inc), covering filings from Jun 14, 2021 onwards. 6 of those are dated within the last 90 days.
- Are QSI insiders net buyers or net sellers?
- Across the full Form 4 history for QSI, 13 transactions (9%) were open-market purchases and 71 (52%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
- Where does QSI insider data come from?
- Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ normalises insider identity across reporting variations and scores discretionary open-market purchases and sales on its multi-factor composite model.
- What sector is QSI in?
- Quantum-Si Inc (QSI) is classified in the Healthcare sector, specifically Medical Devices, with a current market capitalisation of $217.64M.
Methodology & sources
Every QSI insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.