---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-137698"
form_type: "8-K"
ticker: "CDXS"
cik: "0001200375"
company_name: "CODEXIS, INC."
filed_at: "2024-05-14T23:59:59+00:00"
generated_at: "2026-06-02T00:20:34.490126+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Codexis achieves enzymatic synthesis of full-length siRNA oligonucleotide; launches RNA ligase services

## Summary
- Successfully synthesized a full-length siRNA oligonucleotide using ECO Synthesis enzymatic platform, including a conjugation moiety.
- Coupling efficiency exceeded 98%; no notable impurities typical of phosphoramidite chemical synthesis were observed.
- Launched RNA Ligase Screening and Optimization Services for custom evolution of dsRNA ligase enzymes and protocol optimization.
- CEO Stephen Dilly highlighted rapid progress since ECO Synthesis platform unveiling at TIDES USA 2023; multiple customer meetings scheduled.

## SEC filing metadata
- accession: 0001193125-24-137698
- form_type: 8-K
- ticker: CDXS
- cik: 0001200375
- company_name: CODEXIS, INC.
- filed_at: 2024-05-14T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1200375/000119312524137698/0001193125-24-137698-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1200375/000119312524137698/d794552d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-137698
- JSON: https://secwatch.observer/filing/0001193125-24-137698.json
- Plain text: https://secwatch.observer/filing/0001193125-24-137698.txt

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