---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-017869"
form_type: "8-K"
ticker: "CERS"
cik: "0001020214"
company_name: "CERUS CORP"
filed_at: "2023-05-04T23:59:59+00:00"
generated_at: "2026-06-15T19:21:18.567753+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Cerus Q1 revenue down 11% to $38.5M; net loss widens to $15.6M; reiterates FY guidance

## Summary
- Product revenue $31.0M (-17% YoY) on US inventory drawdown; govt contract revenue $7.5M (+35%).
- Net loss $15.6M ($0.09/shr) vs $12.3M ($0.07); adjusted EBITDA -$9.8M vs -$3.7M.
- Product gross margin improved to 55.8% (51.7% YoY), fifth consecutive quarter of expansion.
- Reiterated FY2023 product revenue guidance $165-170M; expects return to growth as drawdown ends.
- Completed debt refinancing; ended Q1 with $94.7M cash, $55M term loan, $18M revolver drawn.

## SEC filing metadata
- accession: 0000950170-23-017869
- form_type: 8-K
- ticker: CERS
- cik: 0001020214
- company_name: CERUS CORP
- filed_at: 2023-05-04T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- 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/1020214/000095017023017869/0000950170-23-017869-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1020214/000095017023017869/cers-20230504.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-017869
- JSON: https://secwatch.observer/filing/0000950170-23-017869.json
- Plain text: https://secwatch.observer/filing/0000950170-23-017869.txt

## Key facts
- Earnings Releases
  CERUS CORP reported first quarter ended March 31, 2023 results: revenue $38.5 million. Guidance reaffirmed.
  - Period: first quarter ended March 31, 2023
  - Revenue: $38.5 million
  - Guidance: reaffirmed
  - Result: reported results
  source text: Cerus Corporation (Nasdaq: CERS) today announced financial results for the first quarter ended March 31, 2023. Recent highlights include: • First quarter 2023 total revenue of $38.5 million
  evidence_url: https://www.sec.gov/Archives/edgar/data/1020214/000095017023017869/0000950170-23-017869-index.htm

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