---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-239277"
form_type: "8-K"
ticker: "ASMB"
cik: "0001426800"
company_name: "ASSEMBLY BIOSCIENCES, INC."
filed_at: "2026-05-26T20:10:16+00:00"
generated_at: "2026-05-26T20:14:11.107921+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Assembly Biosciences raises $115M gross in underwritten equity offering; underwriters exercise option in full

## Summary
- Closed offering of 3,924,624 common shares at $26.50 and pre-funded warrants for 415,000 shares at $26.499.
- Net proceeds of approximately $107.4M after underwriting discounts and estimated expenses.
- Investors include Gilead Sciences, Commodore Capital, Farallon Capital, and others.
- Proceeds to fund clinical development of pipeline candidates and for general corporate purposes.
- Underwriters' 30-day option for 566,040 additional shares exercised in full on May 22.

## SEC filing metadata
- accession: 0001193125-26-239277
- form_type: 8-K
- ticker: ASMB
- cik: 0001426800
- company_name: ASSEMBLY BIOSCIENCES, INC.
- filed_at: 2026-05-26T20:10:16+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1426800/000119312526239277/0001193125-26-239277-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1426800/000119312526239277/asmb-20260521.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-239277
- JSON: https://secwatch.observer/filing/0001193125-26-239277.json
- Plain text: https://secwatch.observer/filing/0001193125-26-239277.txt

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