---
schema_version: "secwatch.filing_event.v1"
accession: "0001558370-23-014088"
form_type: "8-K"
ticker: "OMER"
cik: "0001285819"
company_name: "OMEROS CORP"
filed_at: "2023-08-09T23:59:59+00:00"
generated_at: "2026-06-11T21:33:54.350080+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Omeros Q2 2023 net loss $37.3M ($0.59/share); cash $341M; narsoplimab BLA path set

## Summary
- Net loss Q2 2023 $37.3M vs $30.8M prior year; six-month loss $71.0M; cash burn $30.1M.
- OMIDRIA royalties $10.7M on Rayner sales $35.7M; rate cut from 50% to 30% after $200M milestone.
- Cash, equivalents, and short-term investments $341.3M; accounts receivable $11.2M; runway into 2025.
- FDA Type B meeting; plan to submit detailed survival data analysis for narsoplimab BLA in TA-TMA; target mid-2024 decision.
- Phase 3 ARTEMIS-IGAN IgA nephropathy 9-month data expected later Q3 2023; OMS906 PNH trial shows positive interim results.

## SEC filing metadata
- accession: 0001558370-23-014088
- form_type: 8-K
- ticker: OMER
- cik: 0001285819
- company_name: OMEROS CORP
- filed_at: 2023-08-09T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1285819/000155837023014088/0001558370-23-014088-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1285819/000155837023014088/omer-20230809x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001558370-23-014088
- JSON: https://secwatch.observer/filing/0001558370-23-014088.json
- Plain text: https://secwatch.observer/filing/0001558370-23-014088.txt

## Key facts
- Earnings Releases
  OMEROS CORP reported second quarter ended June 30, 2023 results: net income Net loss was $37.3 million in the quarter ended June 30, 2023, or $0.59 per share.
  - Period: second quarter ended June 30, 2023
  - Net income: Net loss was $37.3 million in the quarter ended June 30, 2023, or $0.59 per share
  - Result: reported results
  source text: Net loss was $37.3 million in the quarter ended June 30, 2023, or $0.59 per share
  evidence_url: https://www.sec.gov/Archives/edgar/data/1285819/000155837023014088/0001558370-23-014088-index.htm
- Earnings Releases
  OMEROS CORP reported six months ended June 30, 2023 results: net income For the six months ended June 30, 2023 our net loss was $71.0 million, or $1.13 per share.
  - Period: six months ended June 30, 2023
  - Net income: For the six months ended June 30, 2023 our net loss was $71.0 million, or $1.13 per share
  - Result: reported results
  source text: For the six months ended June 30, 2023 our net loss was $71.0 million, or $1.13 per share
  evidence_url: https://www.sec.gov/Archives/edgar/data/1285819/000155837023014088/0001558370-23-014088-index.htm

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