---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-001369"
form_type: "8-K"
ticker: "QTRX"
cik: "0001503274"
company_name: "Quanterix Corp"
filed_at: "2026-01-08T23:59:59+00:00"
generated_at: "2026-05-16T11:12:12.996299+00:00"
event_type: "leadership"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Quanterix appoints Everett Cunningham as CEO; expects to exceed FY2025 revenue and cash guidance

## Summary
- Masoud Toloue steps down effective Jan 19; receives accelerated equity vesting through Apr 30, 2026, options exercisable until Dec 31, 2026.
- Everett Cunningham named President & CEO effective Jan 19; base salary $750k, sign-on cash $600k, equity grants of 1.07M time-based RSUs and 813.75K performance-based RSUs.
- Performance-based RSUs vest at stock price milestones $10, $15, $20 per share over 30-day VWAP periods.
- Company expects to exceed its previously issued revenue and cash guidance for FY2025 (preliminary positive).

## SEC filing metadata
- accession: 0001628280-26-001369
- form_type: 8-K
- ticker: QTRX
- cik: 0001503274
- company_name: Quanterix Corp
- filed_at: 2026-01-08T23:59:59+00:00
- event_type: leadership
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 7.01, 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1503274/000162828026001369/0001628280-26-001369-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1503274/000162828026001369/qtrx-20260108.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-001369
- JSON: https://secwatch.observer/filing/0001628280-26-001369.json
- Plain text: https://secwatch.observer/filing/0001628280-26-001369.txt

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