---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-065992"
form_type: "8-K"
ticker: "SNTI"
cik: "0001854270"
company_name: "Senti Biosciences, Inc."
filed_at: "2026-10-15T20:02:19+00:00"
generated_at: "2026-10-15T20:03:04.658567+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Senti Bio holders approve ST NewCo merger and 1-for-20 to 1-for-50 reverse split

## Summary
- Merger Agreement with ST NewCo Limited, Senti Merger Sub, Midco and Senti Biosciences approved 15,851,146 to 4,325,620; majority-of-the-minority vote 6,074,146 for.
- Stockholders authorized a reverse stock split at a ratio of any whole number from 1-for-20 to 1-for-50, with the Board setting the ratio and power to abandon it.
- Approved under Nasdaq Rule 5635(d) the issuance of more than 19.99% of outstanding shares upon exchange of Midco's Senior Secured Convertible Notes.
- Class I directors Timothy Lu, Edward Mathers and Frances D. Schulz elected to serve until 2029; Mathers drew 4,287,567 withheld votes.
- KPMG LLP ratified as auditor for FY2026 (20,133,068 for); 20,240,055 of 31,145,390 shares (64.98%) represented at the reconvened October 15, 2026 meeting.

## SEC filing metadata
- accession: 0001628280-26-065992
- form_type: 8-K
- ticker: SNTI
- cik: 0001854270
- company_name: Senti Biosciences, Inc.
- filed_at: 2026-10-15T20:02:19+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1854270/000162828026065992/0001628280-26-065992-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1854270/000162828026065992/snti-20261015.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-065992
- JSON: https://secwatch.observer/filing/0001628280-26-065992.json
- Plain text: https://secwatch.observer/filing/0001628280-26-065992.txt

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