---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-24-114466"
form_type: "8-K"
ticker: "BOLD"
cik: "0001782303"
company_name: "Boundless Bio, Inc."
filed_at: "2024-10-15T23:59:59+00:00"
generated_at: "2026-05-30T14:40:53.991004+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Boundless Bio CFO Jami Rubin steps down; David Hinkle named principal financial officer

## Summary
- Jami Rubin resigned as CFO and Treasurer effective October 11, 2024.
- David Hinkle, SVP Finance & Controller, appointed as Treasurer, principal financial officer and principal accounting officer.
- Rubin eligible for severance per company's Severance Plan as a Tier 2 employee.
- Hinkle joined Boundless Bio in 2021; prior roles at Crinetics Pharmaceuticals, Ignyta, Receptos.

## SEC filing metadata
- accession: 0000950170-24-114466
- form_type: 8-K
- ticker: BOLD
- cik: 0001782303
- company_name: Boundless Bio, Inc.
- filed_at: 2024-10-15T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1782303/000095017024114466/0000950170-24-114466-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1782303/000095017024114466/bold-20241011.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-24-114466
- JSON: https://secwatch.observer/filing/0000950170-24-114466.json
- Plain text: https://secwatch.observer/filing/0000950170-24-114466.txt

## Key facts
- Executive change
  Jami Rubin departed as Chief Financial Officer and Treasurer at Boundless Bio, Inc..
  - Action: stepped down
  - Role: Chief Financial Officer and Treasurer
  source text: On October 14, 2024, Boundless Bio, Inc. (the “Company”) announced that Jami Rubin, the Company’s Chief Financial Officer and Treasurer, stepped down from her role with the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1782303/000095017024114466/0000950170-24-114466-index.htm
- Executive change
  David Hinkle was appointed as Treasurer, principal financial officer, and principal accounting officer at Boundless Bio, Inc..
  - Action: appointed
  - Role: Treasurer, principal financial officer, and principal accounting officer
  source text: As of the Effective Date, David Hinkle, the Company’s Senior Vice President, Finance & Controller, was appointed to also serve as the Company’s Treasurer, principal financial officer, and principal accounting officer.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1782303/000095017024114466/0000950170-24-114466-index.htm

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