---
schema_version: "secwatch.filing_event.v1"
accession: "0001023459-26-000054"
form_type: "8-K"
ticker: "SLP"
cik: "0001023459"
company_name: "Simulations Plus, Inc."
filed_at: "2026-08-13T21:00:38+00:00"
generated_at: "2026-08-13T21:03:21.680148+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Simulations Plus HSR waiting period expires for Altaris acquisition; close expected H2 2026

## Summary
- HSR waiting period for Altaris acquisition expired Aug 13, 2026, clearing one regulatory hurdle.
- Closing still subject to Simulations Plus shareholder approval and French regulatory approvals.
- Transaction expected to close in second half of calendar 2026.
- Merger agreement signed June 16, 2026 with SP Evolution HoldCo II and SP Evolution BidCo II.

## SEC filing metadata
- accession: 0001023459-26-000054
- form_type: 8-K
- ticker: SLP
- cik: 0001023459
- company_name: Simulations Plus, Inc.
- filed_at: 2026-08-13T21:00:38+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1023459/000102345926000054/0001023459-26-000054-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1023459/000102345926000054/slp-20260813.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001023459-26-000054
- JSON: https://secwatch.observer/filing/0001023459-26-000054.json
- Plain text: https://secwatch.observer/filing/0001023459-26-000054.txt

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