What regulatory approvals are required and what is the timeline for completion?

Regulatory approvals needed

• U.S. antitrust clearance – Because both Hubbell (a publicly‑traded industrial‑equipment group) and DMC Power operate in overlapping markets (energy‑generation equipment, power‑systems), the transaction will be filed with the U.S. Department of Justice (DOJ) Antitrust Division (or the Federal Trade Commission) under the Hart‑Scott‑Rodino (HSR) Act.
  
• State‑level filings – If either party has significant operations in states that still require a “notice‑and‑post‑notice” filing (e.g., California, New York, Texas), the deal will also need those state‑agency approvals.
  
• Foreign‑government clearances – DMC Power is a U‑S‑based company, so no extraterritorial review is expected, but if any of DMC’s assets or supply‑chain partners are located abroad, the Committee on Foreign Investment in the United States (CFIUS) could be triggered.
  

Typical timeline

• HSR filing & initial DOJ/FTC review – 30 calendar days from the filing of the HSR notice.
  
• Waiting period for antitrust clearance – The DOJ/FTC generally grants a “no‑objection” letter after the 30‑day review, but a more detailed “second‑request” can extend the process to 45–60 days.
  
• State filings – Most state notice periods run 30 days, overlapping the federal review.
  
• Closing – Assuming no “second‑request” or foreign‑investment concerns, the parties can expect to close the transaction within 90 days of the HSR filing, i.e., by late October 2025.
  

Trading implication

If the acquisition proceeds on the standard 90‑day schedule, the market will have already priced in the deal’s fundamentals. Any delay—e.g., a DOJ “second‑request” or a CFIUS review—could create short‑term volatility in Hubbell’s stock (ticker HUBB). Traders may consider a tight‑range play around the current price until the anticipated antitrust clearance is announced, then position for a post‑clearance rally if the market perceives the combined entity as a stronger, more diversified power‑systems player. Conversely, a prolonged review would warrant a defensive short or a stop‑loss to protect against a potential price dip.