---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-21-247075"
form_type: "8-K"
ticker: "TSPH"
cik: "0001823593"
company_name: "TuSimple Holdings Inc."
filed_at: "2021-08-16T23:59:59+00:00"
generated_at: "2026-06-29T10:24:24.905581+00:00"
event_type: "regulatory"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# CFIUS initiates 45-day investigation into TuSimple's 2017 acquisition by Cayman entity

## Summary
- CFIUS began a 45-day investigation period for the 2017 acquisition of TuSimple LLC by TuSimple (Cayman) Limited.
- Company previously disclosed the CFIUS filing on August 5, 2021; continues to cooperate fully.
- No determination has been made; investigation does not imply a national security concern has been identified.
- Outcome of the CFIUS review remains uncertain and the company cannot predict the result.

## SEC filing metadata
- accession: 0001193125-21-247075
- form_type: 8-K
- ticker: TSPH
- cik: 0001823593
- company_name: TuSimple Holdings Inc.
- filed_at: 2021-08-16T23:59:59+00:00
- event_type: regulatory
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1823593/000119312521247075/0001193125-21-247075-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1823593/000119312521247075/d216608d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-21-247075
- JSON: https://secwatch.observer/filing/0001193125-21-247075.json
- Plain text: https://secwatch.observer/filing/0001193125-21-247075.txt

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