---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-22-005384"
form_type: "8-K"
ticker: "IDYA"
cik: "0001676725"
company_name: "IDEAYA Biosciences, Inc."
filed_at: "2022-04-06T23:59:59+00:00"
generated_at: "2026-06-26T09:08:10.286689+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# IDEAYA appoints Catherine Mackey, Ph.D. to Board of Directors

## Summary
- Dr. Mackey appointed effective April 5, 2022; Board size increased from 8 to 9.
- Former SVP of Pfizer Worldwide R&D and Director of Pfizer La Jolla Laboratories; led development of Sutent, Xalkori, Ibrance.
- Received option to purchase 22,000 shares at closing price on appointment date, vesting monthly over 36 months.
- Current board seats include AVID Bioservices, Rady Children's Hospital; prior boards include Trillium, Poseida, GW Pharma.
- CEO highlights her expertise for advancing synthetic lethality pipeline including IDE397 and darovasertib.

## SEC filing metadata
- accession: 0000950170-22-005384
- form_type: 8-K
- ticker: IDYA
- cik: 0001676725
- company_name: IDEAYA Biosciences, Inc.
- filed_at: 2022-04-06T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1676725/000095017022005384/0000950170-22-005384-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1676725/000095017022005384/idya-20220405.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-22-005384
- JSON: https://secwatch.observer/filing/0000950170-22-005384.json
- Plain text: https://secwatch.observer/filing/0000950170-22-005384.txt

## Key facts
- Executive change
  Catherine J. Mackey was appointed as member of the Board of Directors at IDEAYA Biosciences, Inc..
  - Action: appointed
  - Role: member of the Board of Directors
  source text: On April 6, 2022, IDEAYA Biosciences, Inc. (the “Company”) announced the appointment of Catherine J. Mackey, Ph.D. as a member of its Board of Directors (the “Board”), effective April 5, 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1676725/000095017022005384/0000950170-22-005384-index.htm

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