---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-018159"
form_type: "8-K"
ticker: null
cik: "0001708493"
company_name: "Harpoon Therapeutics, Inc."
filed_at: "2024-01-29T23:59:59+00:00"
generated_at: "2026-06-06T15:59:22.426037+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "high"
source: SEC EDGAR
---

# Harpoon Therapeutics amends Series A Preferred Stock certificate to reflect 1-for-10 reverse split

## Summary
- Filed Certificate of Amendment on January 26, 2024, adjusting Series A Preferred Stock for the 1-for-10 reverse stock split effective September 1, 2023.
- Amendment is administrative; no change to preferred stock rights, preferences, or limitations.
- Reverse stock split was previously completed; this filing updates the preferred stock certificate accordingly.

## SEC filing metadata
- accession: 0001193125-24-018159
- form_type: 8-K
- cik: 0001708493
- company_name: Harpoon Therapeutics, Inc.
- filed_at: 2024-01-29T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.1
- calibrated_materiality_score: 0.1
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1708493/000119312524018159/0001193125-24-018159-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1708493/000119312524018159/d687029d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-018159
- JSON: https://secwatch.observer/filing/0001193125-24-018159.json
- Plain text: https://secwatch.observer/filing/0001193125-24-018159.txt

## Key facts
- Governance Changes
  Harpoon Therapeutics, Inc.: Filed Certificate of Amendment to Certificate of Designation of Series A Preferred Stock to reflect a one-for-ten reverse stock split of common stock effected September 1, 2023 (effective 2024-01-26).
  - Change: charter amendment
  - Effective: 2024-01-26
  source text: On January 26, 2024, Harpoon Therapeutics, Inc. (the “Company”) filed a Certificate of Amendment to its Certificate of Designation of Preferences, Rights and Limitations of 8.000% Series A Redeemable Preferred Stock (the “Certificate of Amendment”) with the Secretary of State of the State of Delaware to reflect the one-for-ten reverse stock split of the Company’s common stock effected by the Company on September 1, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1708493/000119312524018159/0001193125-24-018159-index.htm

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