---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-24-003287"
form_type: "8-K"
ticker: "OMER"
cik: "0001285819"
company_name: "OMEROS CORP"
filed_at: "2024-02-07T23:59:59+00:00"
generated_at: "2026-06-06T06:44:50.306383+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Omeros amends royalty deal with DRI, receives $115M for expanded OMIDRIA royalty sale

## Summary
- Omeros received $115M cash from DRI Healthcare Acquisitions LP for an expanded interest in OMIDRIA royalties.
- Amendment eliminates annual caps on DRI royalties; DRI now receives all U.S. net sales royalties from Jan 2024 through Dec 2031.
- Omeros eligible for two milestone payments of up to $27.5M each in Jan 2026 and Jan 2028 based on U.S. sales thresholds.
- Omeros retains all non-U.S. OMIDRIA royalties from Jan 2024 and all global royalties after Dec 2031; royalty term extends to 2035 in U.S.

## SEC filing metadata
- accession: 0001437749-24-003287
- form_type: 8-K
- ticker: OMER
- cik: 0001285819
- company_name: OMEROS CORP
- filed_at: 2024-02-07T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 2.03
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1285819/000143774924003287/0001437749-24-003287-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1285819/000143774924003287/omer20230913_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-24-003287
- JSON: https://secwatch.observer/filing/0001437749-24-003287.json
- Plain text: https://secwatch.observer/filing/0001437749-24-003287.txt

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