---
schema_version: "secwatch.filing_event.v1"
accession: "0001935979-25-000074"
form_type: "8-K"
ticker: "BHVN"
cik: "0001935979"
company_name: "Biohaven Ltd."
filed_at: "2025-08-15T23:59:59+00:00"
generated_at: "2026-05-17T12:35:02.946421+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Biohaven amends Knopp deal: royalty cut to mid-single digits, milestones reduced by >$800M

## Summary
- Removed up to $562.5M in commercial sales milestones; reduced developmental/regulatory milestones from $575M to up to $210M.
- Replaced high-single-to-low-teens royalties with flat mid-single-digit royalty for BHV-7000 and pipeline.
- Filed prospectus supplement for resale of 3,588,688 common shares issued as consideration for the Knopp Amendment.
- Biohaven retains option to pay remaining contingent milestones in cash or shares.

## SEC filing metadata
- accession: 0001935979-25-000074
- form_type: 8-K
- ticker: BHVN
- cik: 0001935979
- company_name: Biohaven Ltd.
- filed_at: 2025-08-15T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1935979/000193597925000074/0001935979-25-000074-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1935979/000193597925000074/bhvn-20250815.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001935979-25-000074
- JSON: https://secwatch.observer/filing/0001935979-25-000074.json
- Plain text: https://secwatch.observer/filing/0001935979-25-000074.txt

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