---
schema_version: "secwatch.filing_event.v1"
accession: "0001619856-23-000096"
form_type: "8-K"
ticker: "CRBU"
cik: "0001619856"
company_name: "Caribou Biosciences, Inc."
filed_at: "2023-07-17T23:59:59+00:00"
generated_at: "2026-06-13T07:42:15.348450+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Caribou Biosciences prices upsized $125M public offering at $6.50/sh

## Summary
- Priced 19,230,769 shares at $6.50 per share; underwriters granted 30-day option for 2,884,615 additional shares.
- Gross proceeds ~$125M; net proceeds to Caribou expected ~$116.9M after discounts and expenses.
- Offering expected to close on or about July 18, 2023; BofA, Leerink, Evercore, RBC as book-runners.
- All shares sold by Caribou; proceeds for general corporate purposes.

## SEC filing metadata
- accession: 0001619856-23-000096
- form_type: 8-K
- ticker: CRBU
- cik: 0001619856
- company_name: Caribou Biosciences, Inc.
- filed_at: 2023-07-17T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1619856/000161985623000096/0001619856-23-000096-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1619856/000161985623000096/crbu-20230713.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001619856-23-000096
- JSON: https://secwatch.observer/filing/0001619856-23-000096.json
- Plain text: https://secwatch.observer/filing/0001619856-23-000096.txt

## Key facts
- Material Agreements
  Caribou Biosciences, Inc. entered into Underwriting Agreement with BofA Securities, Inc., SVB Securities LLC, and Evercore Group L.L.C., as representatives of the several underwriters (effective 2023-07-13).
  - Action: entry
  - Agreement: underwriting
  - Counterparty: BofA Securities, Inc., SVB Securities LLC, and Evercore Group L.L.C., as representatives of the several underwriters
  - Effective: 2023-07-13
  source text: On July 13, 2023, Caribou Biosciences, Inc. (the “Company”) entered into an underwriting agreement (the “Underwriting Agreement”) with BofA Securities, Inc., SVB Securities LLC, and Evercore Group L.L.C., as representatives of the several underwriters named therein (collectively, the “Underwriters”), relating to the issuance and sale (the “Offering”) of 19,230,769 shares of its common stock
  evidence_url: https://www.sec.gov/Archives/edgar/data/1619856/000161985623000096/0001619856-23-000096-index.htm

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