Lantheus (LNTH) Proxy filing summary

Executive summary

• Merger Agreement signed Aug. 3, 2026: Merger Sub will merge into the issuer, which will survive as a wholly owned subsidiary of Parent, subject to closing conditions.

• Supplemental proxy disclosures were issued amid merger-related litigation; the issuer denied the proxy was deficient and said disclosures were made without admitting liability or wrongdoing.

Voting matters and shareholder proposals

• A special meeting is scheduled for Oct. 14, 2026, to vote on the Merger Agreement and related proposals.

Board of directors and corporate governance

• Three lawsuits filed against the issuer and certain directors alleged proxy omissions or misstatements involving projections, Morgan Stanley’s fairness analyses and insider conflicts; plaintiffs seek to enjoin the merger pending further disclosure.

• As of Sept. 30, 2026, 16 stockholder demand letters had been received, including two with draft complaints; additional demands or lawsuits may follow.