---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-053420"
form_type: "8-K"
ticker: "QTRX"
cik: "0001503274"
company_name: "Quanterix Corp"
filed_at: "2025-11-20T23:59:59+00:00"
generated_at: "2026-05-16T17:58:17.748970+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Quanterix appoints Hampton, Sachs to board; Donnelly named Executive Chair

## Summary
- Garret Hampton (ex-Thermo Fisher) and Alan Sachs (ex-Thermo Fisher CMO) join board effective Nov. 20, 2025.
- William Donnelly transitions from non-Executive to Executive Chair; Jeffrey Elliott named Lead Independent Director.
- Paul Meister and David Walt retired from board effective same date; no disagreement cited.
- Board now has nine members, seven independent; Hampton and Sachs receive standard compensation plus initial RSU grant of 0.1% of outstanding shares.
- CEO Masoud Toloue to continue focusing on biomarker expansion, LucentAD Complete launch, and Akoya acquisition synergies.

## SEC filing metadata
- accession: 0001628280-25-053420
- form_type: 8-K
- ticker: QTRX
- cik: 0001503274
- company_name: Quanterix Corp
- filed_at: 2025-11-20T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1503274/000162828025053420/0001628280-25-053420-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1503274/000162828025053420/qtrx-20251120.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-053420
- JSON: https://secwatch.observer/filing/0001628280-25-053420.json
- Plain text: https://secwatch.observer/filing/0001628280-25-053420.txt

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