---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-129431"
form_type: "8-K"
ticker: "QTTB"
cik: "0001661998"
company_name: "Q32 Bio Inc."
filed_at: "2026-03-27T23:59:59+00:00"
generated_at: "2026-05-15T08:39:34.613364+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Q32 Bio enters ATM sales agreement for up to $14.2M common stock offering

## Summary
- Enters Controlled Equity Offering Sales Agreement with Cantor Fitzgerald & Co. for at-the-market sales.
- May sell shares with aggregate offering price up to $14.2 million via prospectus supplement filed March 27, 2026.
- Sales made on Nasdaq or other trading markets; Agent receives 3.0% cash commission on gross proceeds.
- Company not obligated to sell any shares; can suspend or terminate offering on notice to Agent.
- Uses existing shelf registration statement Form S-3 (File No. 333-286491) effective April 21, 2025.

## SEC filing metadata
- accession: 0001193125-26-129431
- form_type: 8-K
- ticker: QTTB
- cik: 0001661998
- company_name: Q32 Bio Inc.
- filed_at: 2026-03-27T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1661998/000119312526129431/0001193125-26-129431-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1661998/000119312526129431/d12934d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-129431
- JSON: https://secwatch.observer/filing/0001193125-26-129431.json
- Plain text: https://secwatch.observer/filing/0001193125-26-129431.txt

## Key facts
- Material Agreements
  Q32 Bio Inc. entered into Controlled Equity Offering SM Sales Agreement with Cantor Fitzgerald & Co. valued at up to $14,200,000 (effective 2026-03-27).
  - Action: entry
  - Agreement: atm program
  - Counterparty: Cantor Fitzgerald & Co.
  - Value: up to $14,200,000
  - Effective: 2026-03-27
  source text: On March 27, 2026, Q32 Bio Inc. (the “Company”) entered into a Controlled Equity Offering SM Sales Agreement (the “Sales Agreement”) with Cantor Fitzgerald & Co. (the “Sales Agent”)
  evidence_url: https://www.sec.gov/Archives/edgar/data/1661998/000119312526129431/0001193125-26-129431-index.htm

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