FTC Second Request on Lantheus' $8B Curium Merger Extends HSR Review

summarizeSummary

Lantheus and Curium each received an FTC Second Request on their $8 billion merger, extending the HSR waiting period. The parties still expect to close in the first half of 2027.

check_boxKey Events · M&A and Partnerships · LNTH

• FTC Second Request Issued

  On October 21, 2026, Lantheus and Curium each received a request for additional information and documentary materials from the FTC regarding the pending merger.

• HSR Waiting Period Extended

  The Second Request extends the HSR waiting period until 30 days after both parties have substantially complied, unless the FTC terminates it sooner.

• Closing Target Unchanged

  The parties continue to expect to consummate the merger in the first half of 2027, subject to HSR clearance and other closing conditions.

• Shareholder Approval Already Secured

  Shareholders approved the $8 billion Curium acquisition at the October 14, 2026 special meeting, leaving antitrust review as the remaining gating item.

auto_awesomeAnalysis · LNTH · Life Sciences

The FTC has demanded additional information from both Lantheus and Curium, restarting the HSR clock and pushing antitrust clearance out by at least 30 days after both sides substantially comply. With shareholder approval already in hand, the remaining question is purely regulatory timing: the parties still expect to close in the first half of 2027, but a Second Request raises the odds of a longer review or negotiated remedies. For holders, the $102.50 cash plus CVR consideration is unchanged — what moves is the time value of waiting and the tail risk that the FTC extracts conditions or challenges the deal.