---
schema_version: "secwatch.filing_event.v1"
accession: "0000947871-22-001062"
form_type: "8-K"
ticker: "DTM"
cik: "0001842022"
company_name: "DT Midstream, Inc."
filed_at: "2022-10-07T23:59:59+00:00"
generated_at: "2026-06-23T04:47:28.123639+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# DT Midstream closes $552M acquisition of additional 26.25% stake in Millennium Pipeline, now owns 52.50%

## Summary
- Purchased 26.25% interest from National Grid for $552M; financed with cash and revolver.
- Millennium Pipeline is a 263-mile interstate pipeline serving Marcellus/Utica gas markets.
- CEO David Slater says acquisition aligns with strategic thesis and accelerates growth plan.
- Pipeline interconnects with DT Midstream's Bluestone Gathering Lateral and Susquehanna Gathering System.
- Lazard and Shearman & Sterling served as financial and legal advisors.

## SEC filing metadata
- accession: 0000947871-22-001062
- form_type: 8-K
- ticker: DTM
- cik: 0001842022
- company_name: DT Midstream, Inc.
- filed_at: 2022-10-07T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1842022/000094787122001062/0000947871-22-001062-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1842022/000094787122001062/ss1404184_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000947871-22-001062
- JSON: https://secwatch.observer/filing/0000947871-22-001062.json
- Plain text: https://secwatch.observer/filing/0000947871-22-001062.txt

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