---
schema_version: "secwatch.filing_event.v1"
accession: "0001534969-21-000017"
form_type: "8-K"
ticker: "SERA"
cik: "0001534969"
company_name: "SERA PROGNOSTICS, INC."
filed_at: "2021-11-09T23:59:59+00:00"
generated_at: "2026-06-28T10:40:35.644683+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Sera Prognostics Q3 net loss widens to $9.9M; cash $82.5M; salesforce scaling to 26 reps

## Summary
- Revenue $23K vs $5K YoY; net loss $9.9M vs $5.1M YoY.
- Operating expenses $9.5M (R&D $2.7M, SG&A $6.7M) up from $4.6M due to scaling commercial ops and public company costs.
- Cash & equivalents $82.5M plus $67.5M available-for-sale securities.
- Salesforce now 26 reps; appointed Paul Kearney as Chief Data Officer, Zhenya Lindgardt to Board, Woodrow Myers as advisor.
- Published health economic study showing PreTRM test could reduce $54M in costs; clinical validation study published.

## SEC filing metadata
- accession: 0001534969-21-000017
- form_type: 8-K
- ticker: SERA
- cik: 0001534969
- company_name: SERA PROGNOSTICS, INC.
- filed_at: 2021-11-09T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1534969/000153496921000017/0001534969-21-000017-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1534969/000153496921000017/sera-20211109.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001534969-21-000017
- JSON: https://secwatch.observer/filing/0001534969-21-000017.json
- Plain text: https://secwatch.observer/filing/0001534969-21-000017.txt

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