---
schema_version: "secwatch.filing_event.v1"
accession: "0001558370-22-017140"
form_type: "8-K"
ticker: "OMER"
cik: "0001285819"
company_name: "OMEROS CORP"
filed_at: "2022-11-09T23:59:59+00:00"
generated_at: "2026-06-22T00:45:16.484850+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Omeros reports Q3 2022 net loss $17.5M; FDA denies narsoplimab appeal, provides resubmission path

## Summary
- Net loss $17.5M ($0.28/share) vs $22.7M loss in 3Q21; cash and equivalents $221M at Sept 30.
- FDA denied Formal Dispute Resolution for narsoplimab BLA; proposes resubmission with survival vs historical control.
- Sold interest in OMIDRIA royalties to DRI for $125M cash; max DRI payout $188.4M at 9.4% effective rate.
- CMS final rule confirms separate OMIDRIA payment in ambulatory surgical centers for 2023.

## SEC filing metadata
- accession: 0001558370-22-017140
- form_type: 8-K
- ticker: OMER
- cik: 0001285819
- company_name: OMEROS CORP
- filed_at: 2022-11-09T23:59:59+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/1285819/000155837022017140/0001558370-22-017140-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1285819/000155837022017140/omer-20221109x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001558370-22-017140
- JSON: https://secwatch.observer/filing/0001558370-22-017140.json
- Plain text: https://secwatch.observer/filing/0001558370-22-017140.txt

## Key facts
- Earnings Releases
  OMEROS CORP reported financial results for three and nine months ended September 30, 2022.
  - Period: three and nine months ended September 30, 2022
  - Result: reported results
  source text: On November 9, 2022, Omeros Corporation issued a press release announcing financial results for the three and nine months ended September 30, 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1285819/000155837022017140/0001558370-22-017140-index.htm

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