---
schema_version: "secwatch.filing_event.v1"
accession: "0001534969-24-000054"
form_type: "8-K"
ticker: "SERA"
cik: "0001534969"
company_name: "SERA PROGNOSTICS, INC."
filed_at: "2024-03-20T23:59:59+00:00"
generated_at: "2026-06-04T11:33:29.272837+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Sera Prognostics reports Q4/FY2023 results; DSMB stops PRIME study early for efficacy

## Summary
- DSMB recommended stopping PRIME enrollment after co-primary endpoints met significance at interim analysis; preparing manuscript.
- Q4 2023 revenue $41K; full-year revenue $306K; net loss $7.9M (Q4) and $36.2M (FY), improved from prior year.
- Operating expenses down to $8.9M (Q4) from $10.5M; SG&A reduced to $5.0M from $6.9M.
- Cash and securities $79.9M as of Dec 31, 2023.
- Progress on PreTRM sample collection enhancements; launching in certain geographies; building patient-facing products.

## SEC filing metadata
- accession: 0001534969-24-000054
- form_type: 8-K
- ticker: SERA
- cik: 0001534969
- company_name: SERA PROGNOSTICS, INC.
- filed_at: 2024-03-20T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1534969/000153496924000054/0001534969-24-000054-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1534969/000153496924000054/sera-20240320.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001534969-24-000054
- JSON: https://secwatch.observer/filing/0001534969-24-000054.json
- Plain text: https://secwatch.observer/filing/0001534969-24-000054.txt

## Key facts
- Earnings Releases
  SERA PROGNOSTICS, INC. reported financial results for the fourth quarter and fiscal year ended December 31, 2023.
  - Period: the fourth quarter and fiscal year ended December 31, 2023
  - Result: reported results
  source text: On March 20, 2024, Sera Prognostics, Inc. (the "Company") issued a press release announcing its financial results for the fourth quarter and fiscal year ended December 31, 2023 and providing business highlights.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1534969/000153496924000054/0001534969-24-000054-index.htm

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