---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-24-027113"
form_type: "8-K"
ticker: "SER"
cik: "0001708599"
company_name: "Serina Therapeutics, Inc."
filed_at: "2024-07-12T23:59:59+00:00"
generated_at: "2026-05-31T21:10:39.734999+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Serina Therapeutics COO Tacey Viegas to retire July 15; consulting agreement extends stock options

## Summary
- Tacey Viegas notified retirement as COO effective July 15, 2024.
- Separation agreement provides 12 months of base salary plus $1,000/month.
- Consulting agreement extends options on 341,889 shares at $0.06 per share.
- No other compensation under consulting agreement beyond option extension.

## SEC filing metadata
- accession: 0001493152-24-027113
- form_type: 8-K
- ticker: SER
- cik: 0001708599
- company_name: Serina Therapeutics, Inc.
- filed_at: 2024-07-12T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1708599/000149315224027113/0001493152-24-027113-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1708599/000149315224027113/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-24-027113
- JSON: https://secwatch.observer/filing/0001493152-24-027113.json
- Plain text: https://secwatch.observer/filing/0001493152-24-027113.txt

## Key facts
- Executive change
  Tacey Viegas departed as Chief Operating Officer at Serina Therapeutics, Inc..
  - Action: retire
  - Role: Chief Operating Officer
  source text: On July 9, 2024, Tacey Viegas, Chief Operating Officer of Serina Therapeutics, Inc. (the “ Company ”), notified the Company that he will retire effective July 15, 2024
  evidence_url: https://www.sec.gov/Archives/edgar/data/1708599/000149315224027113/0001493152-24-027113-index.htm

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