---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-083830"
form_type: "8-K"
ticker: "ASMB"
cik: "0001426800"
company_name: "ASSEMBLY BIOSCIENCES, INC."
filed_at: "2025-06-09T23:59:59+00:00"
generated_at: "2026-05-19T16:58:26.271667+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Assembly Biosciences appoints new CFO; shareholders approve stock plan share increases

## Summary
- Jeanette M. Bjorkquist appointed principal financial officer effective June 5, 2025; Jason A. Okazaki remains CEO.
- Shareholders approved Amendment No. 1 to 2018 Stock Incentive Plan: shares reserved increased by 375,000 to 1,478,333.
- Amendment No. 2 approved: 225,000 additional shares for performance-based vesting retention grants.
- ESPP Amendment No. 1 approved: shares reserved increased from 164,500 to 225,000.
- All 10 director nominees elected; Ernst & Young ratified as auditor for FY 2025.

## SEC filing metadata
- accession: 0000950170-25-083830
- form_type: 8-K
- ticker: ASMB
- cik: 0001426800
- company_name: ASSEMBLY BIOSCIENCES, INC.
- filed_at: 2025-06-09T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02, 5.07, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1426800/000095017025083830/0000950170-25-083830-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1426800/000095017025083830/asmb-20250605.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-083830
- JSON: https://secwatch.observer/filing/0000950170-25-083830.json
- Plain text: https://secwatch.observer/filing/0000950170-25-083830.txt

## Key facts
- Executive change
  Jeanette M. Bjorkquist was appointed as principal financial officer at ASSEMBLY BIOSCIENCES, INC..
  - Action: appointed
  - Role: principal financial officer
  source text: On June 5, 2025, the Board of Directors appointed Jeanette M. Bjorkquist to serve as the Company’s principal financial officer in addition to her role as principal accounting officer.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1426800/000095017025083830/0000950170-25-083830-index.htm
- Executive change
  Jason A. Okazaki changed role as principal executive officer at ASSEMBLY BIOSCIENCES, INC..
  - Role: principal executive officer
  source text: Ms. Bjorkquist succeeds Jason A. Okazaki, who previously served as both the Company’s principal executive officer and principal financial officer.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1426800/000095017025083830/0000950170-25-083830-index.htm

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