---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-069668"
form_type: "8-K"
ticker: "CLYM"
cik: "0001768446"
company_name: "Climb Bio, Inc."
filed_at: "2025-04-01T23:59:59+00:00"
generated_at: "2026-05-24T00:58:42.129232+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Climb Bio announces board changes: two directors depart, two new directors elected

## Summary
- Simon Tate resigned as director on March 27, 2025, also leaving audit and nominating committees; no disagreement.
- Adam Rosenberg will not seek re-election at 2025 annual meeting; no disagreement with company.
- Board expanded from 7 to 8; Alexander (Bo) Cumbo and Kimberlee Drapkin elected effective March 28, 2025.
- Cumbo to chair compensation committee; Drapkin to chair audit committee.
- Each new director received option to purchase 80,000 shares at $1.28/share, vesting over three years.

## SEC filing metadata
- accession: 0001193125-25-069668
- form_type: 8-K
- ticker: CLYM
- cik: 0001768446
- company_name: Climb Bio, Inc.
- filed_at: 2025-04-01T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1768446/000119312525069668/0001193125-25-069668-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1768446/000119312525069668/d853219d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-069668
- JSON: https://secwatch.observer/filing/0001193125-25-069668.json
- Plain text: https://secwatch.observer/filing/0001193125-25-069668.txt

## Key facts
- Executive change
  Simon Tate resigned as member of the board of directors at Climb Bio, Inc..
  - Action: resigned
  - Role: member of the board of directors
  source text: Simon Tate notified Climb Bio, Inc. (the “Company”) of his decision to resign as a member of the Company’s board of directors
  evidence_url: https://www.sec.gov/Archives/edgar/data/1768446/000119312525069668/0001193125-25-069668-index.htm
- Executive change
  Alexander (Bo) Cumbo was elected as member of the board of directors at Climb Bio, Inc..
  - Action: elected
  - Role: member of the board of directors
  source text: Mr. Cumbo was elected to serve with a term expiring at the Company’s 2026 annual meeting of stockholders and thereafter until his successor has been duly appointed and qualified or until his earlier death, resignation or removal.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1768446/000119312525069668/0001193125-25-069668-index.htm
- Executive change
  Kimberlee (Kim) Drapkin was elected as member of the board of directors at Climb Bio, Inc..
  - Action: elected
  - Role: member of the board of directors
  source text: Ms. Drapkin was elected to serve with a term expiring at the Company’s 2027 annual meeting of stockholders and thereafter until her successor has been duly appointed and qualified or until her earlier death, resignation or removal.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1768446/000119312525069668/0001193125-25-069668-index.htm
- Executive change
  Adam Rosenberg departed as member of the board of directors at Climb Bio, Inc..
  - Action: does not intend to seek re-election
  - Role: member of the board of directors
  source text: Adam Rosenberg notified the Company that he does not intend to seek re-election as a member of the Board when his current term ends at the Company’s 2025 annual meeting of stockholders.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1768446/000119312525069668/0001193125-25-069668-index.htm

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