---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-209068"
form_type: "8-K"
ticker: "EQ"
cik: "0001746466"
company_name: "Equillium, Inc."
filed_at: "2025-09-19T23:59:59+00:00"
generated_at: "2026-05-17T06:07:37.751887+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Equillium ups ATM facility to $75M from $21.95M; prior sales $0.96M

## Summary
- Filed prospectus supplement to increase aggregate offering price of common stock under existing Sales Agreement to $75M.
- Sales Agreement with LifeSci Capital LLC, dated Oct 2023, amended Aug 2025, governs the at-the-market offering.
- Previously sold 1,719,485 shares for aggregate gross proceeds of approximately $0.96M.
- New supplement amends prior ATM prospectus dated Jan 2023, as supplemented Oct 2023 and Feb 2024.
- No specific use of proceeds stated in the filing.

## SEC filing metadata
- accession: 0001193125-25-209068
- form_type: 8-K
- ticker: EQ
- cik: 0001746466
- company_name: Equillium, Inc.
- filed_at: 2025-09-19T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1746466/000119312525209068/0001193125-25-209068-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1746466/000119312525209068/d42725d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-209068
- JSON: https://secwatch.observer/filing/0001193125-25-209068.json
- Plain text: https://secwatch.observer/filing/0001193125-25-209068.txt

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