Lantheus Holdings, Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for Lantheus Holdings, Inc. (LNTH), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are LNTH insiders buying or selling?
Lantheus Holdings, Inc. insiders reported no open-market purchases or sales in the last 12 months. Since January 2018, Trabud has recorded 234 Form 4 filings for LNTH: 8 buys ($141.2K) and 226 sells ($479.7M).
Source: SEC EDGAR Form 4
Key Statistics (January 2018 – Aug 21, 2025)
Total Form 4 filings
234
SEC EDGAR
Insider filers
25
Insider buys (8)
$141.2K
Insider sells (226)
$479.7M
Insider sentiment
Net sellingNet insider flow of $479.6M in net selling since January 2018.
Recent LNTH insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Aug 21, 2025 | Rajiv A Patel | Other | Sale | 3.4M | $56.14 | $191.2M | SEC ↗ |
| Aug 21, 2025 | Joshua J. Dapice | Other, 10% Owner | Sale | 3.4M | $56.14 | $191.2M | SEC ↗ |
| Aug 15, 2025 | Paul Blanchfield | President | Sale | 3.1K | $53.57 | $163.9K | SEC ↗ |
| Jun 17, 2025 | Daniel Niedzwiecki | Chief Administrative Officer, General Counsel and Corporate Secretary | Sale | 6.0K | $78.74 | $472.4K | SEC ↗ |
| Jun 11, 2025 | Julie Mchugh | Director | Sale | 5.2K | $81.62 | $423.8K | SEC ↗ |
| Jun 11, 2025 | Robert J. Marshall Jr. | CFO and Treasurer | Sale | 39.8K | $83.00 | $3.3M | SEC ↗ |
| Jun 9, 2025 | Paul Blanchfield | President | Sale | 6.6K | $79.65 | $525.6K | SEC ↗ |
| Jun 9, 2025 | Daniel Niedzwiecki | Chief Administrative Officer, General Counsel and Corporate Secretary | Sale | 6.0K | $79.65 | $477.9K | SEC ↗ |
| Jun 4, 2025 | Mary Anne Heino | Director | Sale | 26.1K | $76.83 | $2.0M | SEC ↗ |
| Mar 19, 2025 | Robert J. Marshall Jr. | CFO and Treasurer | Sale | 10.0K | $100.52 | $1.0M | SEC ↗ |
| Mar 18, 2025 | Mary Anne Heino | Director | Sale | 3 | $93.84 | $281.52 | SEC ↗ |
| Mar 7, 2025 | Paul Blanchfield | President | Sale | 2.1K | $98.00 | $204.2K | SEC ↗ |
| Mar 5, 2025 | Mary Anne Heino | Director | Sale | 53.1K | $94.35 | $5.0M | SEC ↗ |
| Jan 17, 2025 | James H Thrall | Director | Sale | 1.0K | $94.76 | $94.8K | SEC ↗ |
| Nov 19, 2024 | Robert J. Marshall Jr. | CFO and Treasurer | Sale | 10.0K | $81.20 | $812.0K | SEC ↗ |
| Nov 18, 2024 | Paul Blanchfield | President | Sale | 2.0K | $79.65 | $159.3K | SEC ↗ |
| Nov 12, 2024 | Mary Anne Heino | Director | Sale | 11.5K | $87.16 | $1.0M | SEC ↗ |
| Aug 23, 2024 | James H Thrall | Director | Sale | 1.0K | $98.52 | $98.5K | SEC ↗ |
| Aug 16, 2024 | Daniel Niedzwiecki | Chief Administrative Officer, General Counsel and Corporate Secretary | Sale | 2.5K | $97.54 | $243.8K | SEC ↗ |
| Aug 14, 2024 | Gerard Ber | Director | Sale | 15.5K | $96.48 | $1.5M | SEC ↗ |
| Aug 12, 2024 | Paul Blanchfield | President | Sale | 2.0K | $96.39 | $192.8K | SEC ↗ |
| Aug 6, 2024 | Mary Anne Heino | Director | Sale | 10.5K | $95.50 | $1.0M | SEC ↗ |
| Jul 17, 2024 | Andrea Sabens | Chief Accounting Officer | Sale | 2.1K | $124.67 | $266.4K | SEC ↗ |
| Jul 12, 2024 | Gary J Pruden | Director | Sale | 12.5K | $95.04 | $1.2M | SEC ↗ |
| Jun 17, 2024 | Andrea Sabens | Chief Accounting Officer | Sale | 341 | $79.77 | $27.2K | SEC ↗ |
Showing the 25 most recent of 234 Form 4 filings for Lantheus Holdings, Inc..
Most active LNTH insiders
- Mary Anne Heino38 filings
- Andrea Sabens32 filings
- Robert J. Marshall Jr.22 filings
- Michael P Duffy20 filings
- Paul Blanchfield18 filings
Ask anything about LNTH insider activity
Use Trabud's AI agent to query Lantheus Holdings, Inc.'s Form 4 history in plain English — "Show me LNTH CEO purchases this year" or compare it against any other ticker.
Open the AI agentLNTH insider trading FAQ
Are Lantheus Holdings, Inc. insiders buying or selling?
Lantheus Holdings, Inc. insiders reported no open-market purchases or sales in the last 12 months. Since January 2018, Trabud has recorded 234 Form 4 filings for LNTH: 8 buys ($141.2K) and 226 sells ($479.7M). Over the full record that is net selling of $479.6M.
How many insiders trade LNTH stock?
25 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Lantheus Holdings, Inc.. The most recent filing was accepted on Aug 21, 2025.
Where does Trabud get LNTH insider trading data?
All LNTH insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.