---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-22-177732"
form_type: "8-K"
ticker: "ACLX"
cik: "0001786205"
company_name: "Arcellx, Inc."
filed_at: "2022-06-21T23:59:59+00:00"
generated_at: "2026-06-25T00:30:31.016340+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Arcellx closes upsized public offering of 8.05M shares, gross proceeds $128.8M

## Summary
- Offered 7M shares plus full underwriter option of 1.05M; total 8.05M at $16.00 per share.
- Gross proceeds $128.8M before underwriting discounts and offering expenses.
- Joint book-running managers: BofA Securities, SVB Securities, William Blair, Canaccord Genuity.
- Shares sold by the company; registration effective June 15, 2022 and closed June 21, 2022.
- Proceeds intended for general corporate purposes and pipeline development.

## SEC filing metadata
- accession: 0001193125-22-177732
- form_type: 8-K
- ticker: ACLX
- cik: 0001786205
- company_name: Arcellx, Inc.
- filed_at: 2022-06-21T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1786205/000119312522177732/0001193125-22-177732-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1786205/000119312522177732/d279713d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-22-177732
- JSON: https://secwatch.observer/filing/0001193125-22-177732.json
- Plain text: https://secwatch.observer/filing/0001193125-22-177732.txt

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