---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-036896"
form_type: "8-K"
ticker: "BIRD"
cik: "0001653909"
company_name: "Allbirds, Inc."
filed_at: "2026-05-20T20:11:47+00:00"
generated_at: "2026-05-20T20:13:32.617266+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Allbirds co-founder Joseph Zwillinger resigns from board effective May 18, 2026

## Summary
- Joseph Zwillinger, co-founder of Allbirds' footwear business, resigned as director.
- Resignation effective May 18, 2026; no disagreement with company operations or policies.
- No replacement named on the board following Zwillinger's departure.
- Zwillinger remains a co-founder but no longer serves on the board.

## SEC filing metadata
- accession: 0001628280-26-036896
- form_type: 8-K
- ticker: BIRD
- cik: 0001653909
- company_name: Allbirds, Inc.
- filed_at: 2026-05-20T20:11:47+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1653909/000162828026036896/0001628280-26-036896-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1653909/000162828026036896/bird-20260518.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-036896
- JSON: https://secwatch.observer/filing/0001628280-26-036896.json
- Plain text: https://secwatch.observer/filing/0001628280-26-036896.txt

## Key facts
- Executive change
  Joseph Zwillinger resigned as Director at Allbirds, Inc..
  - Action: resigned
  - Role: Director
  source text: On May 18, 2026, Joseph Zwillinger, a director and co-founder of the Company's footwear business, notified the Board of Directors (the “Board”) of Allbirds, Inc. (the “Company”) of his intention to resign from the Board, effective as of May 18 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1653909/000162828026036896/0001628280-26-036896-index.htm

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