---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-23-031408"
form_type: "8-K"
ticker: null
cik: "0001106838"
company_name: "Sonnet BioTherapeutics Holdings, Inc."
filed_at: "2023-09-01T23:59:59+00:00"
generated_at: "2026-06-11T00:21:13.980404+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Sonnet BioTherapeutics effects 1-for-22 reverse stock split effective August 31, 2023

## Summary
- Every 22 pre-split shares converted to 1 post-split share; no fractional shares issued, cash paid in lieu.
- Reverse split effective at 4:30 p.m. ET on August 31, 2023; trading on split-adjusted basis starts September 1.
- CUSIP number changed to 83548R303; par value and authorized shares unchanged.
- Stock options, warrants, and convertible securities adjusted proportionally.

## SEC filing metadata
- accession: 0001493152-23-031408
- form_type: 8-K
- cik: 0001106838
- company_name: Sonnet BioTherapeutics Holdings, Inc.
- filed_at: 2023-09-01T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 3.03, 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1106838/000149315223031408/0001493152-23-031408-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1106838/000149315223031408/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-23-031408
- JSON: https://secwatch.observer/filing/0001493152-23-031408.json
- Plain text: https://secwatch.observer/filing/0001493152-23-031408.txt

## Key facts
- Governance Changes
  Sonnet BioTherapeutics Holdings, Inc.: Filed Certificate of Amendment to effect a 1-for-22 reverse stock split of common stock, effective at 4:30 pm ET on August 31, 2023 (effective 2023-08-31).
  - Change: charter amendment
  - Effective: 2023-08-31
  source text: On August 31, 2023 (the “ Effective Date ”), Sonnet BioTherapeutics Holdings, Inc. (the “ Company ”) filed a Certificate of Amendment to the Company’s Certificate of Incorporation, as amended, with the Secretary of State of the State of Delaware (the “ Certificate of Amendment ”), which effected, at 4:30 p.m. Eastern Time on August 31, 2023, a one-for-twenty two reverse stock split (the “ Reverse Stock Split ”) of the Company’s issued and outstanding shares of common stock, par value $0.0001 per share (the “ Common Stock ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1106838/000149315223031408/0001493152-23-031408-index.htm

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