---
schema_version: "secwatch.filing_event.v1"
accession: "0001558370-23-017788"
form_type: "8-K"
ticker: "QTRX"
cik: "0001503274"
company_name: "Quanterix Corp"
filed_at: "2023-11-06T23:59:59+00:00"
generated_at: "2026-06-08T19:46:36.256172+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Quanterix Q3 revenue $31.3M (+18% YoY), net loss narrows; raises full-year guidance

## Summary
- Q3 revenue $31.3M (+18% YoY); GAAP net loss narrowed to $7.8M from $35.1M.
- GAAP gross margin improved to 56.8% (41.1% prior year); non-GAAP gross margin 48.6% (34.9%).
- FY 2023 revenue guidance raised to $118-120M from $110-116M; cash usage outlook lowered to $20-25M.
- Launched LucentAD p-Tau 217 blood-based Alzheimer's test; Simoa platform used in Eli Lilly's p-Tau 217 validation.

## SEC filing metadata
- accession: 0001558370-23-017788
- form_type: 8-K
- ticker: QTRX
- cik: 0001503274
- company_name: Quanterix Corp
- filed_at: 2023-11-06T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1503274/000155837023017788/0001558370-23-017788-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1503274/000155837023017788/tmb-20231106x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001558370-23-017788
- JSON: https://secwatch.observer/filing/0001558370-23-017788.json
- Plain text: https://secwatch.observer/filing/0001558370-23-017788.txt

## Key facts
- Earnings Releases
  Quanterix Corp reported three months ended September 30, 2023 results: net income Net loss was $7.8 million as compared to $35.1 million for the corresponding prior year period..
  - Period: three months ended September 30, 2023
  - Net income: Net loss was $7.8 million as compared to $35.1 million for the corresponding prior year period.
  - Result: reported results
  source text: Revenue was $31.3 million, an 18% increase from $26.6 million for the corresponding prior year period.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1503274/000155837023017788/0001558370-23-017788-index.htm
- Earnings Releases
  Quanterix Corp reported three months ended September 30, 2023 results: net income Net loss was $7.8 million as compared to $35.1 million for the corresponding prior year period..
  - Period: three months ended September 30, 2023
  - Net income: Net loss was $7.8 million as compared to $35.1 million for the corresponding prior year period.
  - Result: reported results
  source text: Net loss was $7.8 million as compared to $35.1 million for the corresponding prior year period.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1503274/000155837023017788/0001558370-23-017788-index.htm
- Earnings Releases
  Quanterix Corp reported Full year 2023 results: revenue $118 to $120 million. Guidance raised.
  - Period: Full year 2023
  - Revenue: $118 to $120 million
  - Guidance: raised
  - Result: guidance update
  source text: Management has increased full-year revenue expectations to be in the range of $118 to $120 million versus the prior range of $110 to $116 million.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1503274/000155837023017788/0001558370-23-017788-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.