---
schema_version: "secwatch.filing_event.v1"
accession: "0001860782-24-000030"
form_type: "8-K"
ticker: null
cik: "0001860782"
company_name: "2seventy bio, Inc."
filed_at: "2024-03-13T23:59:59+00:00"
generated_at: "2026-06-04T22:33:01.053659+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "high"
source: SEC EDGAR
---

# 2seventy bio extends director nomination deadline for 2024 annual meeting to March 22

## Summary
- Board of Directors extended deadline for notice of director nominations to March 22, 2024 at 5:00 PM ET.
- Extension applies only to nominations for election at the 2024 Annual Meeting.
- Notices must comply with Bylaws and applicable law to be considered timely.
- No other changes to the annual meeting or fiscal year were announced.

## SEC filing metadata
- accession: 0001860782-24-000030
- form_type: 8-K
- cik: 0001860782
- company_name: 2seventy bio, Inc.
- filed_at: 2024-03-13T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.1
- calibrated_materiality_score: 0.1
- confidence: high
- sec_items: 5.03
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1860782/000186078224000030/0001860782-24-000030-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1860782/000186078224000030/tvst-20240312.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001860782-24-000030
- JSON: https://secwatch.observer/filing/0001860782-24-000030.json
- Plain text: https://secwatch.observer/filing/0001860782-24-000030.txt

## Key facts
- Governance Changes
  2seventy bio, Inc.: Extended the deadline for director nominations for the 2024 annual meeting to March 22, 2024 (effective 2024-03-12).
  - Change: bylaw amendment
  - Effective: 2024-03-12
  source text: On March 12, 2024 the Board of Directors of 2seventy bio, Inc. (the “Company”) extended the deadline for notice of director nominations for consideration at the 2024 annual meeting of stockholders of the Company (the “2024 Annual Meeting”) to March 22, 2024 pursuant to the Company’s Amended and Restated Bylaws (the “Bylaws”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1860782/000186078224000030/0001860782-24-000030-index.htm

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