Form4insider filings, from the source

Company · CIK 0001521036 · SIC 2835 — In Vitro & In Vivo Diagnostic Substances · Nasdaq

Lantheus Holdings, Inc. · LNTH

Insider activity reported against this company. All insider holders · Files at: CATX. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market trades as an insider elsewherebuys $0 · 0sales $357k · 2net −$357k
$10k$10k$100k$100k$1M$1MbuyssalesSep 2024Jan 2025May 2025Sep 2025Jan 2026May 2026Sep 2026

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 31, 2026 FForm 4 →Sep 2, 4:35 pm EDTRobert J. Marshall Jr.CFO and Treasurer721$100.96$72,792122,071—
Aug 17, 2026 FForm 4 →Aug 19, 4:34 pm EDTLudger DinkelborgSee Remarks2,536$100.91$255,90833,195—
Aug 17, 2026 FForm 4 →Aug 19, 4:34 pm EDTKimberly BrownChief Accounting Officer463$100.91$46,72113,263—
May 14, 2026 FForm 4 →Jun 3, 4:44 pm EDTGerard BerDirector381$96.67$36,83127,118— late
May 14, 2026 FForm 4 →Jun 3, 4:43 pm EDTMary Anne HeinoExecutive Chair and CEO, Director1,227$96.67$118,614321,897— late

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.

Filed by this entity as an insider elsewhere — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 1, 2026 SForm 4 →Sep 3, 4:54 pm EDTPerspective Therapeutics, Inc.CATX35,769$3.12$111,57411,563,425−0.31%
Aug 31, 2026 SForm 4 →Sep 2, 4:36 pm EDTPerspective Therapeutics, Inc.CATX78,145$3.14$245,61011,599,194−0.67%

Filed by this entity as an insider elsewhere — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.