---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-452115"
form_type: "8-K"
ticker: "RLYB"
cik: "0001739410"
company_name: "Rallybio Corp"
filed_at: "2026-11-06T22:26:49+00:00"
generated_at: "2026-11-06T22:28:02.425276+00:00"
event_type: "m_and_a"
sentiment: "negative"
materiality_score: 0.72
calibrated_materiality_score: 0.72
confidence: "high"
source: SEC EDGAR
---

# Rallybio postpones Avenzo merger closing; cash distribution deposit delayed

## Summary
- Merger with Avenzo Therapeutics and Farmington Merger Sub, dated May 31, 2026, will not close as anticipated on November 6, 2026.
- Unmet listing conditions for Rallybio shares post-closing prompted the postponement; parties continue seeking listing approvals.
- Rallybio did not deposit cash distribution funds with Computershare on November 5, 2026, so payment and ex-dividend dates may be delayed.
- No new closing date or distribution timetable was provided; company said it will give further updates as appropriate.

## SEC filing metadata
- accession: 0001193125-26-452115
- form_type: 8-K
- ticker: RLYB
- cik: 0001739410
- company_name: Rallybio Corp
- filed_at: 2026-11-06T22:26:49+00:00
- event_type: m_and_a
- sentiment: negative
- materiality_score: 0.72
- calibrated_materiality_score: 0.72
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1739410/000119312526452115/0001193125-26-452115-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1739410/000119312526452115/d195147d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-452115
- JSON: https://secwatch.observer/filing/0001193125-26-452115.json
- Plain text: https://secwatch.observer/filing/0001193125-26-452115.txt

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