---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-133170"
form_type: "8-K"
ticker: "TYRA"
cik: "0001863127"
company_name: "Tyra Biosciences, Inc."
filed_at: "2024-05-07T23:59:59+00:00"
generated_at: "2026-06-02T20:37:56.724793+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Tyra Biosciences appoints Drs. Moran and Rothenberg to Board; Dr. Chen resigns

## Summary
- Isan Chen resigned from Board and Compensation Committee effective May 7, 2024, with no disagreement.
- Board expanded from nine to ten and appointed Susan Moran (former CMO, RayzeBio) and S. Michael Rothenberg (CMO, insitro) as directors.
- Moran appointed to Compensation and Science/Technology Committees; Rothenberg to Science/Technology Committee.
- Each new director received options for 37,200 shares vesting over 36 months plus cash compensation.
- Both directors are deemed independent under Nasdaq listing standards.

## SEC filing metadata
- accession: 0001193125-24-133170
- form_type: 8-K
- ticker: TYRA
- cik: 0001863127
- company_name: Tyra Biosciences, Inc.
- filed_at: 2024-05-07T23:59:59+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/1863127/000119312524133170/0001193125-24-133170-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1863127/000119312524133170/d822217d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-133170
- JSON: https://secwatch.observer/filing/0001193125-24-133170.json
- Plain text: https://secwatch.observer/filing/0001193125-24-133170.txt

## Key facts
- Executive change
  S. Michael Rothenberg was appointed as Director at Tyra Biosciences, Inc..
  - Action: appointed
  - Role: Director
  source text: appointed Susan Moran, M.D., M.S.C.E. and S. Michael Rothenberg, M.D., Ph.D. as directors.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1863127/000119312524133170/0001193125-24-133170-index.htm
- Executive change
  Susan Moran was appointed as Director at Tyra Biosciences, Inc..
  - Action: appointed
  - Role: Director
  source text: appointed Susan Moran, M.D., M.S.C.E. and S. Michael Rothenberg, M.D., Ph.D. as directors.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1863127/000119312524133170/0001193125-24-133170-index.htm
- Executive change
  Isan Chen resigned as Director at Tyra Biosciences, Inc..
  - Action: resigned
  - Role: Director
  source text: Isan Chen, M.D. resigned from the Board and the Compensation Committee of the Board effective as of May 7, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1863127/000119312524133170/0001193125-24-133170-index.htm

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