secwatch.observer — SEC 8-K summary
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Issuer:     Lantheus Holdings, Inc. (LNTH)
CIK:        0001521036
Form:       8-K
Filed at:   2026-09-21T20:05:47+00:00
Accession:  0001193125-26-396654
Event type: m_and_a
Sentiment:  neutral
Materiality: 0.40
Item codes: 8.01
LLM model:  deepseek-v4-flash:cloud@v2

Lantheus/Curium refile HSR notice; new 30-day FTC review period ends Oct 21, 2026
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- Parent (Curium) withdrew HSR filing Sept 17, 2026; refiled Sept 21, starting new 30-day waiting period expiring Oct 21, 2026.
- Merger with Curium still expected to close in first half 2027, pending FTC approval, stockholder adoption, and other customary conditions.
- Parties continue working constructively with FTC staff; withdrawal/refiling described as routine to extend review time.
- Definitive proxy statement filed with SEC on Sept 8, 2026 for stockholder vote on the merger.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1521036/000119312526396654/0001193125-26-396654-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1521036/000119312526396654/d148743d8k.htm
  HTML page:      https://secwatch.observer/filing/0001193125-26-396654

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer