---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-088888"
form_type: "8-K"
ticker: "CDNA"
cik: "0001217234"
company_name: "CareDx, Inc."
filed_at: "2023-04-03T23:59:59+00:00"
generated_at: "2026-06-17T06:48:43.645926+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "medium"
source: SEC EDGAR
---

# CareDx enters agreement with Stanford to seek Supreme Court review of patent validity; royalties suspended

## Summary
- Agreement dated March 29, 2023, effective Feb 3, 2023, with Stanford to seek Supreme Court review of Federal Circuit patent decision.
- Royalty payment and reporting obligations on U.S. licensed products suspended during pendency of Supreme Court review.
- Company's 30-day termination right under exclusive license agreement is also suspended during review.
- Agreement modifies post-termination obligations and allocation of legal fees between the parties.

## SEC filing metadata
- accession: 0001193125-23-088888
- form_type: 8-K
- ticker: CDNA
- cik: 0001217234
- company_name: CareDx, Inc.
- filed_at: 2023-04-03T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: medium
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1217234/000119312523088888/0001193125-23-088888-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1217234/000119312523088888/d477855d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-088888
- JSON: https://secwatch.observer/filing/0001193125-23-088888.json
- Plain text: https://secwatch.observer/filing/0001193125-23-088888.txt

## Key facts
- Material Agreements
  CareDx, Inc. amended Agreement Regarding Payment of Royalties and Amendment to the Amended and Restated Exclusive License Agreement with Stanford University (effective 2023-02-03).
  - Action: amendment
  - Agreement: license
  - Counterparty: Stanford University
  - Effective: 2023-02-03
  source text: On March 29, 2023, the Parties entered into an Agreement Regarding Payment of Royalties and Amendment to the Amended and Restated Exclusive License Agreement (the “Agreement and Amendment”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1217234/000119312523088888/0001193125-23-088888-index.htm

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