---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-24-022046"
form_type: "8-K"
ticker: "ACLX"
cik: "0001786205"
company_name: "Arcellx, Inc."
filed_at: "2024-02-28T23:59:59+00:00"
generated_at: "2026-06-05T09:13:30.657263+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Arcellx posts Q4 net income of $20.5M, cash $729.2M, expands Kite partnership

## Summary
- Q4 2023 net income $20.5M vs net loss $39.0M in Q4 2022; full-year net loss narrowed to $70.7M from $188.7M.
- Cash, cash equivalents and marketable securities $729.2M; cash runway extended into 2027.
- Collaboration revenue from Kite partnership: $63.1M in Q4 and $110.3M full year, both vs zero.
- Kite partnership expanded with $200M equity investment at $61.68/share and $85M upfront cash, plus co-development of anito-cel for lymphomas.
- Phase 1 anito-cel data: 100% ORR, 76% CR/sCR (29/38 patients), no delayed neurotoxicity, median DOR/PFS/OS not reached.

## SEC filing metadata
- accession: 0000950170-24-022046
- form_type: 8-K
- ticker: ACLX
- cik: 0001786205
- company_name: Arcellx, Inc.
- filed_at: 2024-02-28T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1786205/000095017024022046/0000950170-24-022046-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1786205/000095017024022046/aclx-20240228.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-24-022046
- JSON: https://secwatch.observer/filing/0000950170-24-022046.json
- Plain text: https://secwatch.observer/filing/0000950170-24-022046.txt

## Key facts
- Earnings Releases
  Arcellx, Inc. reported the fourth quarter and year ended December 31, 2023 results: revenue $63.1 million, net income $20.5 million.
  - Period: the fourth quarter and year ended December 31, 2023
  - Revenue: $63.1 million
  - Net income: $20.5 million
  - Result: reported results
  source text: million. Arcellx anticipates that its cash, cash equivalents, and marketable securities will fund its operations into 2027. Collaboration revenue: Collaboration revenue was $63.1 million and zero for the quarters ended December 31, 2023 and 2022, respectively. Collaboration revenue was $110.3 million and zero for the twelve months ended December 31, 2023 and
  evidence_url: https://www.sec.gov/Archives/edgar/data/1786205/000095017024022046/0000950170-24-022046-index.htm

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