---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-22-077831"
form_type: "8-K"
ticker: "ALNY"
cik: "0001178670"
company_name: "ALNYLAM PHARMACEUTICALS, INC."
filed_at: "2022-03-17T23:59:59+00:00"
generated_at: "2026-06-26T21:54:59.707745+00:00"
event_type: "litigation"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Alnylam files patent infringement lawsuits against Pfizer and Moderna over mRNA COVID-19 vaccine lipids

## Summary
- Filed lawsuits in U.S. District Court for Delaware against Pfizer and Moderna.
- Patent No. 11,246,933 covers biodegradable cationic lipids used in mRNA COVID-19 vaccines.
- Seeking damages for infringement including a reasonable royalty; no injunction sought.
- Alnylam asserts its patented lipids are foundational to the vaccines and used without license.

## SEC filing metadata
- accession: 0001193125-22-077831
- form_type: 8-K
- ticker: ALNY
- cik: 0001178670
- company_name: ALNYLAM PHARMACEUTICALS, INC.
- filed_at: 2022-03-17T23:59:59+00:00
- event_type: litigation
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1178670/000119312522077831/0001193125-22-077831-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1178670/000119312522077831/d336905d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-22-077831
- JSON: https://secwatch.observer/filing/0001193125-22-077831.json
- Plain text: https://secwatch.observer/filing/0001193125-22-077831.txt

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