Summary
Updated Aug 30, 2026
Paul Blanchfield is President of Lantheus Holdings, Inc. (LNTH). 3 SEC Form 4 filings on record going back to 2024, most recently on 13 August 2025. Most recent open-market trade: sold $164K of LNTH on 13 August 2025. Lifetime open-market sales: $323K.
Recent Transactions
4Every recent SEC Form 4 transaction Paul Blanchfield has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who have reported open-market trades at the same companies as Paul Blanchfield. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- FARALLON PARTNERS L L C - $191.21M of LNTH open-market activity on record
- Rajiv A. Patel - $191.21M of LNTH open-market activity on record
- Mary Anne Heino - $1.00M of LNTH open-market activity on record
- Robert J. Marshall Jr. - $812K of LNTH open-market activity on record
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Paul Blanchfield?
Paul Blanchfield is a corporate insider, tracked as President of Lantheus Holdings, Inc. (LNTH). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Paul Blanchfield last file a Form 4?
The most recent primary Form 4 on record is dated 13 August 2025, one of 3 filings going back to 2024.
Has Paul Blanchfield been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($323K) across all tracked filings.
Where can I see all of Paul Blanchfield's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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