As of the latest Form 4 filed Jun 3, 2026.
What Lantheus Holdings Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Newest filing first — the 14 most recent filings for LNTH.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-03 | 2026-05-14 | Ber Gerard Director | FTax | −381.00 | $96.67 | $36.8K | No | Form 4 ↗ |
| 2026-06-03 | 2026-05-14 | Heino Mary Anne Executive Chair and CEO | FTax | −1.23K | $96.67 | $119K | No | Form 4 ↗ |
| 2026-04-21 | 2026-04-17 | Niedzwiecki Daniel See Remarks | FTax | −1.91K | $83.82 | $160K | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Niedzwiecki Daniel See Remarks | FTax | −1.28K | $76.31 | $97.9K | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Niedzwiecki Daniel, See Remarks | AAward | +36.7K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Dinkelborg Ludger See Remarks | AAward | +21.0K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Marshall Robert J. Jr. CFO and Treasurer | FTax | −1.18K | $76.31 | $90.2K | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Marshall Robert J. Jr., CFO and Treasurer | AAward | +38.0K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Brown Kimberly Chief Accounting Officer | FTax | −133.00 | $76.31 | $10.1K | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Brown Kimberly, Chief Accounting Officer | AAward | +6.16K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Morgan Amanda Michelle Chief Commercial Officer | FTax | −595.00 | $76.31 | $45.4K | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Morgan Amanda Michelle, Chief Commercial Officer | AAward | +26.2K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2025-12-17 | 2025-12-15 | Morgan Amanda Michelle Chief Commercial Officer | FTax | −368.00 | $66.57 | $24.5K | No | Form 4 ↗ |
| 2025-12-17 | 2024-12-15 | Morgan Amanda Michelle, Chief Commercial Officer | FTax | −356.00 | $93.48 | $33.3K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also LNTH’s full analysis or the market-wide insider trading feed. The tabs above jump to LNTH’s other SEC data.
Source: SEC Form 4 filings for LNTH, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.