LNTHNasdaq · In Vitro & In Vivo Diagnostic Substances

Lantheus Holdings, Inc.

Alert me on LNTH

Insider buys, 6 months

Congress trades, 6 months

Signals, 6 months

Six months

After each filing

Feb 11, 2025 Buy Rep. Gilbert Cisneros House

1 week

−1.5%S&P +1.2%

1 month

+23.1%S&P −6.7%

3 months

−4.0%S&P −2.3%

6 months

−33.7%S&P +7.5%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for LNTH

45 held · newest 545 held · newest 2

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See all 45 filings for LNTH

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Signal history

No signal for this ticker yet. A signal is written when insider buying here scores one dot or more.

Stakes

Jun 30, 2026 Schedule 13G, amended

Farallon Capital Management, L.L.C.: 8.6%, 5,583,479 shares

Jun 30, 2026 Schedule 13G

Vanguard Portfolio Management: 5.1%, 3,300,293 shares

Mar 31, 2026 Schedule 13G, amended

JANUS HENDERSON GROUP PLC: 7.4%, 4,774,841 shares

Mar 31, 2026 Schedule 13G

Vanguard Capital Management: 5.3%, 3,421,414 shares

Mar 13, 2026 Schedule 13G, amended

The Vanguard Group: 0%, 0 shares

Dec 31, 2025 Schedule 13G, amended

JANUS HENDERSON GROUP PLC: 8.6%, 5,707,247 shares

Dec 31, 2025 Schedule 13G, amended

Morgan Stanley: 2.5%, 1,640,837 shares

Dec 31, 2025 Schedule 13G, amended

Dapice Joshua J.: 8.2%, 5,427,479 shares

Sep 30, 2025 Schedule 13G, amended

JANUS HENDERSON GROUP PLC: 9.8%, 6,684,737 shares

Sep 30, 2025 Schedule 13G, amended

Dapice Joshua J.: 5.1%, 3,477,227 shares

Sep 30, 2025 Schedule 13G

Morgan Stanley: 5.6%, 3,777,712 shares

Sep 30, 2025 Schedule 13G, amended

FMR LLC: 6.5%, 4,399,524 shares

Schedule 13D is filed within 5 business days of crossing 5 percent by an investor who may seek to influence the company. Schedule 13G is filed by a passive holder, and a large institution has up to 45 days after the quarter end.

Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal

No contracts of $10M or more in the last 12 months.

Lobbying

Last four quarters

NoneQ4 2025

$330KQ1 2026

$332KQ2 2026

$291KQ3 2026

Down 12 percent from Q2 2026. Reported by the company to the Senate each quarter.Original report ↗

Read from LDA.gov between Sep 23, 2026 and Oct 20, 2026. Senate Office of Public Records cannot vouch for the data or analyses derived from these data after the data have been retrieved from LDA.gov.