---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-100097"
form_type: "8-K"
ticker: "SENS"
cik: "0001616543"
company_name: "Senseonics Holdings, Inc."
filed_at: "2025-10-16T23:59:59+00:00"
generated_at: "2026-05-17T03:33:52.196105+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Senseonics Holdings announces 1-for-20 reverse stock split effective October 17, 2025

## Summary
- Reverse stock split ratio is 1-for-20, combining every 20 shares into 1.
- Authorized shares reduced from 1.4 billion to 70 million, effective at 4:05 p.m. ET on Oct 17, 2025.
- No fractional shares will be issued; stockholders receive cash in lieu of fractional shares.
- Common stock to trade on NYSE American under ticker SENS on a split-adjusted basis from Oct 20, 2025.
- Proportionate adjustments made to outstanding stock options, RSUs, warrants, and equity plan reserves.

## SEC filing metadata
- accession: 0001104659-25-100097
- form_type: 8-K
- ticker: SENS
- cik: 0001616543
- company_name: Senseonics Holdings, Inc.
- filed_at: 2025-10-16T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 3.03, 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1616543/000110465925100097/0001104659-25-100097-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1616543/000110465925100097/tm2528782d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-100097
- JSON: https://secwatch.observer/filing/0001104659-25-100097.json
- Plain text: https://secwatch.observer/filing/0001104659-25-100097.txt

## Key facts
- Governance Changes
  Senseonics Holdings, Inc.: Amended certificate of incorporation to effect 1-for-20 reverse stock split and reduce authorized shares from 1,400,000,000 to 70,000,000 (effective 2025-10-17).
  - Change: charter amendment
  - Effective: 2025-10-17
  source text: On October 16, 2025, Senseonics Holdings, Inc. (the “Company”) filed a Certificate of Amendment to its Amended and Restated Certificate of Incorporation (the “Amendment”) with the Secretary of State of the State of Delaware to effect the previously disclosed one-for-twenty (1-for-20) reverse stock split (the “Reverse Stock Split”) of its outstanding common stock and a proportional decrease in the total number of authorized shares of its common stock from 1,400,000,000 to 70,000,000 (the “Shares Reduction”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1616543/000110465925100097/0001104659-25-100097-index.htm

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