---
schema_version: "secwatch.filing_event.v1"
accession: "0001619856-25-000047"
form_type: "8-K"
ticker: "CRBU"
cik: "0001619856"
company_name: "Caribou Biosciences, Inc."
filed_at: "2025-06-13T23:59:59+00:00"
generated_at: "2026-05-19T08:24:35.662497+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Caribou Biosciences stockholders approve reverse stock split authorization at annual meeting

## Summary
- Class I directors elected: Scott Braunstein (40.2M votes for) and Ran Zheng (30.4M votes for).
- Deloitte & Touche ratified as independent auditor for FY2025 (66.5M for, 1.1M against).
- Amendment to charter approved to allow reverse stock split at ratio from 1:5 to 1:50, as determined by board.
- Adjournment proposal approved but unnecessary due to quorum and sufficient votes on all proposals.

## SEC filing metadata
- accession: 0001619856-25-000047
- form_type: 8-K
- ticker: CRBU
- cik: 0001619856
- company_name: Caribou Biosciences, Inc.
- filed_at: 2025-06-13T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.07, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1619856/000161985625000047/0001619856-25-000047-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1619856/000161985625000047/crbu-20250612.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001619856-25-000047
- JSON: https://secwatch.observer/filing/0001619856-25-000047.json
- Plain text: https://secwatch.observer/filing/0001619856-25-000047.txt

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