---
schema_version: "secwatch.filing_event.v1"
accession: "0001943289-25-000009"
form_type: "8-K"
ticker: "SVCO"
cik: "0001943289"
company_name: "Silvaco Group, Inc."
filed_at: "2025-08-26T23:59:59+00:00"
generated_at: "2026-05-17T10:03:24.182632+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Silvaco CEO Babak Taheri departs; Walden Rhines appointed as new CEO

## Summary
- Dr. Babak Taheri steps down as CEO effective Aug 19, 2025; separation includes $975,484 cash severance, 126,161 RSUs accelerated.
- Board appoints Dr. Walden Rhines as CEO; he previously served on Silvaco board and led Mentor Graphics for 23 years.
- Rhines employment term through March 31, 2027; base salary $160,000; eligible for PRSUs worth up to $6.25M based on stock price.
- Rhines severance ranges from $500,000 (6 months) to $1,000,000 (12+ months) plus accelerated PRSUs.

## SEC filing metadata
- accession: 0001943289-25-000009
- form_type: 8-K
- ticker: SVCO
- cik: 0001943289
- company_name: Silvaco Group, Inc.
- filed_at: 2025-08-26T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1943289/000194328925000009/0001943289-25-000009-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1943289/000194328925000009/svco-20250821.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001943289-25-000009
- JSON: https://secwatch.observer/filing/0001943289-25-000009.json
- Plain text: https://secwatch.observer/filing/0001943289-25-000009.txt

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