---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-063421"
form_type: "8-K"
ticker: "TWST"
cik: "0001581280"
company_name: "Twist Bioscience Corp"
filed_at: "2023-05-23T23:59:59+00:00"
generated_at: "2026-06-14T17:19:06.669159+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Twist Bioscience appoints Robert Werner as Chief Accounting Officer

## Summary
- Robert Werner appointed Chief Accounting Officer effective May 22, 2023; James Thorburn continues as CFO.
- Werner receives $400K base salary, $100K bonus for FY2023, and 30,000 RSUs vesting over 4 years.
- Werner previously served as CAO at Invitae (2020-2023) and as Corporate Controller at Proteus Digital Health.
- Werner is a CPA with a Master's in Accountancy from Brigham Young University.

## SEC filing metadata
- accession: 0001104659-23-063421
- form_type: 8-K
- ticker: TWST
- cik: 0001581280
- company_name: Twist Bioscience Corp
- filed_at: 2023-05-23T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1581280/000110465923063421/0001104659-23-063421-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1581280/000110465923063421/tm2316362d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-063421
- JSON: https://secwatch.observer/filing/0001104659-23-063421.json
- Plain text: https://secwatch.observer/filing/0001104659-23-063421.txt

## Key facts
- Executive change
  Robert F. Werner was appointed as chief accounting officer at Twist Bioscience Corp.
  - Action: appointed
  - Role: chief accounting officer
  source text: appointed Robert F. Werner as the Company’s chief accounting officer and principal accounting officer, effective May 22, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1581280/000110465923063421/0001104659-23-063421-index.htm

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