---
schema_version: "secwatch.filing_event.v1"
accession: "0001847367-25-000035"
form_type: "8-K/A"
ticker: "ALMS"
cik: "0001847367"
company_name: "ALUMIS INC."
filed_at: "2025-06-30T23:59:59+00:00"
generated_at: "2026-05-18T14:37:38.667286+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Alumis files ACELYRIN financials: 2024 net loss $248M, cash $448M

## Summary
- ACELYRIN's FY2024 net loss $248.2M, down from $381.6M in 2023; no revenue.
- Cash, cash equivalents and short-term marketable securities $448.4M at Dec 31, 2024.
- Accumulated deficit $736.9M; R&D expenses $238.1M in 2024.
- Merger closed May 21, 2025; Alumis files audited 2024/2023 and unaudited Q1 2025 financials.
- Pro forma financial information in Exhibit 99.3 reflects combined entity.

## SEC filing metadata
- accession: 0001847367-25-000035
- form_type: 8-K/A
- ticker: ALMS
- cik: 0001847367
- company_name: ALUMIS INC.
- filed_at: 2025-06-30T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1847367/000184736725000035/0001847367-25-000035-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1847367/000184736725000035/alms-20250521x8ka.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001847367-25-000035
- JSON: https://secwatch.observer/filing/0001847367-25-000035.json
- Plain text: https://secwatch.observer/filing/0001847367-25-000035.txt

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