---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-094228"
form_type: "8-K"
ticker: "QTRX"
cik: "0001503274"
company_name: "Quanterix Corp"
filed_at: "2023-08-22T23:59:59+00:00"
generated_at: "2026-06-11T05:35:51.757987+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Quanterix appoints William P. Donnelly to Board of Directors

## Summary
- Donnelly, former EVP and CFO of Mettler-Toledo, appointed effective August 17, 2023.
- He will serve as Class III director until 2026 annual meeting and join Audit Committee.
- Initial equity award valued at $400,000 (60% stock options, 40% RSUs) with three-year vesting.
- Annual retainer of $40,000 for Board service plus $10,000 for Audit Committee, pro-rated.
- Company cites his experience as valuable for scaling Alzheimer's blood biomarker strategy.

## SEC filing metadata
- accession: 0001104659-23-094228
- form_type: 8-K
- ticker: QTRX
- cik: 0001503274
- company_name: Quanterix Corp
- filed_at: 2023-08-22T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1503274/000110465923094228/0001104659-23-094228-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1503274/000110465923094228/tm2324259d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-094228
- JSON: https://secwatch.observer/filing/0001104659-23-094228.json
- Plain text: https://secwatch.observer/filing/0001104659-23-094228.txt

## Key facts
- Executive change
  William P. Donnelly was appointed as Director at Quanterix Corp.
  - Action: appointed
  - Role: Director
  source text: On August 17, 2023, the board of directors (the “ Board ”) of Quanterix Corporation (the “ Company ”) appointed William P. Donnelly to serve on the Board and the Audit Committee of the Board, in each case effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1503274/000110465923094228/0001104659-23-094228-index.htm

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