---
schema_version: "secwatch.filing_event.v1"
accession: "0001023459-26-000092"
form_type: "8-K"
ticker: "SLP"
cik: "0001023459"
company_name: "Simulations Plus, Inc."
filed_at: "2026-10-06T20:15:16+00:00"
generated_at: "2026-10-12T16:18:46.979937+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Simulations Plus closes $376.8M Altaris take-private at $18.50/share; combined with Chemical Computing Group

## Summary
- Each outstanding share converted into the right to receive $18.50 in cash; total transaction valued at approximately $376.8 million.
- Simulations Plus became a wholly owned subsidiary of SP Evolution HoldCo II; shares ceased trading on Nasdaq as of October 6, 2026.
- Simulations Plus is being combined with Chemical Computing Group, an Altaris portfolio company, and will keep its own name and brand.
- Directors Daniel Weiner, Walter Woltosz, John Paglia and Sharlene Evans left the board; Matteo Foderaro and Charles Mullens became directors; Paul Labute named President.
- All options vested and were cashed out at the $18.50 consideration (in-the-money options only) and the 2021 Equity Incentive Plan was terminated.

## SEC filing metadata
- accession: 0001023459-26-000092
- form_type: 8-K
- ticker: SLP
- cik: 0001023459
- company_name: Simulations Plus, Inc.
- filed_at: 2026-10-06T20:15:16+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.01, 3.01, 3.03, 5.01, 5.02, 5.03, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1023459/000102345926000092/0001023459-26-000092-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1023459/000102345926000092/slp-20261006.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001023459-26-000092
- JSON: https://secwatch.observer/filing/0001023459-26-000092.json
- Plain text: https://secwatch.observer/filing/0001023459-26-000092.txt

## Key facts
- Executive change
  Dr. John K. Paglia departed as Director at Simulations Plus, Inc..
  - Action: ceased serving
  - Role: Director
  source text: Pursuant to the terms of the Merger Agreement, at the Effective Time, each of Dr. Daniel Weiner, Dr. Walter S. Woltosz, Dr. John K. Paglia and Sharlene Evans ceased serving as a member of the Board of Directors of the Company (the “ Board ”) and on any and all committees of the Board on which they served.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1023459/000102345926000092/0001023459-26-000092-index.htm
- Executive change
  Matteo Foderaro was appointed as Director at Simulations Plus, Inc..
  - Action: became director
  - Role: Director
  source text: At the Effective Time, Matteo Foderaro and Charles Mullens became the directors of the Surviving Corporation.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1023459/000102345926000092/0001023459-26-000092-index.htm
- Executive change
  Dr. Daniel Weiner departed as Director at Simulations Plus, Inc..
  - Action: ceased serving
  - Role: Director
  source text: Pursuant to the terms of the Merger Agreement, at the Effective Time, each of Dr. Daniel Weiner, Dr. Walter S. Woltosz, Dr. John K. Paglia and Sharlene Evans ceased serving as a member of the Board of Directors of the Company (the “ Board ”) and on any and all committees of the Board on which they served.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1023459/000102345926000092/0001023459-26-000092-index.htm
- Executive change
  Paul Labute was appointed as President at Simulations Plus, Inc..
  - Action: appointed
  - Role: President
  source text: On October 6, 2026, following the consummation of the Merger, the Board appointed Paul Labute as President of the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1023459/000102345926000092/0001023459-26-000092-index.htm
- Executive change
  Dr. Walter S. Woltosz departed as Director at Simulations Plus, Inc..
  - Action: ceased serving
  - Role: Director
  source text: Pursuant to the terms of the Merger Agreement, at the Effective Time, each of Dr. Daniel Weiner, Dr. Walter S. Woltosz, Dr. John K. Paglia and Sharlene Evans ceased serving as a member of the Board of Directors of the Company (the “ Board ”) and on any and all committees of the Board on which they served.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1023459/000102345926000092/0001023459-26-000092-index.htm
- Executive change
  Charles Mullens was appointed as Director at Simulations Plus, Inc..
  - Action: became director
  - Role: Director
  source text: At the Effective Time, Matteo Foderaro and Charles Mullens became the directors of the Surviving Corporation.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1023459/000102345926000092/0001023459-26-000092-index.htm
- Executive change
  Sharlene Evans departed as Director at Simulations Plus, Inc..
  - Action: ceased serving
  - Role: Director
  source text: Pursuant to the terms of the Merger Agreement, at the Effective Time, each of Dr. Daniel Weiner, Dr. Walter S. Woltosz, Dr. John K. Paglia and Sharlene Evans ceased serving as a member of the Board of Directors of the Company (the “ Board ”) and on any and all committees of the Board on which they served.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1023459/000102345926000092/0001023459-26-000092-index.htm

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