SEC Form 4 · Updated Daily

LNTH

LANTHEUS HOLDINGS, INC. Ownership

Insider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.

FinancialsOwnership

Current Reporting Owners

OwnerRoleShares OwnedAs OfLast Activity
FARALLON PARTNERS L L C/CA10%+ Owner3,477,2272025-08-20S
WEHRLY MARK CReporting Owner3,477,2272025-08-20S
FRIED RICHARD BReporting Owner3,477,2272025-08-20S
PATEL RAJIV AReporting Owner3,477,2272025-08-20S
Spokes Andrew J MReporting Owner3,477,2272025-08-20S
Giauque NicolasReporting Owner3,477,2272025-08-20S
Roberts Thomas G. Jr.Reporting Owner3,477,2272025-08-20S
Linn Michael GReporting Owner3,477,2272025-08-20S
Warren John R.Reporting Owner3,477,2272025-08-20S
Kim David TReporting Owner3,477,2272025-08-20S
Seybold WilliamReporting Owner3,477,2272025-08-20S
Dreyfuss Philip DReporting Owner3,477,2272025-08-20S
Gehani Varun NReporting Owner3,477,2272025-08-20S
Saito Edric C.Reporting Owner3,477,2272025-08-20S
Dapice Joshua J.Reporting Owner3,477,2272025-08-20S
Short Daniel S.Reporting Owner3,477,2272025-08-20S
Dunn Hannah E.Reporting Owner3,477,2272025-08-20S
Luo Patrick (Cheng)Reporting Owner3,477,2272025-08-20S
Heino Mary AnneDirector321,8972026-05-14F
Marshall Robert J. Jr.Officer122,0712026-08-31F
Niedzwiecki DanielOfficer117,4652026-04-17F
Blanchfield PaulOfficer108,2142025-08-13S
LENO SAM RDirector67,2462026-05-14A
Morgan Amanda MichelleOfficer64,1532026-03-05F
Thrall James HDirector39,8812026-05-14A
Dinkelborg LudgerOfficer33,1952026-08-17F
McHugh JulieDirector30,0992026-05-14A
Maeusli Heinz ChristophDirector30,0142026-05-14A
Ber GerardDirector27,4992026-05-14A
Baylor-Henry MinnieDirector14,0182026-05-14A
Brown KimberlyOfficer13,2632026-08-17F
EASTLAND JULIA MARIEDirector8,0192026-05-14A
Morrow Phuong KhanhDirector7,2372026-05-14A
Pruden Gary JDirector6,6742026-05-14A

Recent Filings

DateOwnerActivitySharesPriceOwned After
2026-08-31Marshall Robert J. Jr.Tax withholding721$100.96122,071
2026-08-17Brown KimberlyTax withholding463$100.9113,263
2026-08-17Dinkelborg LudgerTax withholding2,536$100.9133,195
2026-05-14EASTLAND JULIA MARIEGrant / award4,137$0.008,019
2026-05-14Thrall James HGrant / award4,137$0.0039,881
2026-05-14Ber GerardGrant / award4,137$0.0027,499
2026-05-14Baylor-Henry MinnieGrant / award4,137$0.0014,018
2026-05-14Pruden Gary JGrant / award4,137$0.006,674
2026-05-14LENO SAM RGrant / award4,137$0.0067,246
2026-05-14Maeusli Heinz ChristophGrant / award4,137$0.0030,014
2026-05-14Morrow Phuong KhanhGrant / award4,137$0.007,237
2026-05-14McHugh JulieGrant / award4,137$0.0030,099
2026-05-14Heino Mary AnneTax withholding1,227$96.67321,897
2026-05-14Ber GerardTax withholding381$96.6727,118
2026-04-17Niedzwiecki DanielTax withholding1,911$83.82117,465
2026-03-05Morgan Amanda MichelleTax withholding595$76.3164,153
2026-03-05Morgan Amanda MichelleGrant / award26,208$0.0064,748
2026-03-05Brown KimberlyTax withholding133$76.3113,726
2026-03-05Brown KimberlyGrant / award6,158$0.0013,859
2026-03-05Marshall Robert J. Jr.Tax withholding1,182$76.31122,792
2026-03-05Marshall Robert J. Jr.Grant / award38,002$0.00123,974
2026-03-05Dinkelborg LudgerGrant / award20,966$0.0035,731
2026-03-05Niedzwiecki DanielTax withholding1,283$76.31119,376
2026-03-05Niedzwiecki DanielGrant / award36,692$0.00120,659
2026-03-02Heino Mary AnneTax withholding41,916$76.30323,124
2026-03-02Heino Mary AnneGrant / award32,105$0.00365,040
2026-03-02Marshall Robert J. Jr.Tax withholding10,652$76.3085,972
2026-03-02Marshall Robert J. Jr.Grant / award8,491$0.0096,624
2026-03-02Morgan Amanda MichelleTax withholding3,336$76.3038,540
2026-03-02Morgan Amanda MichelleGrant / award2,782$0.0041,876
2026-03-02Niedzwiecki DanielTax withholding8,259$76.3083,967
2026-03-02Niedzwiecki DanielGrant / award5,169$0.0092,226
2025-12-15Morgan Amanda MichelleTax withholding368$66.5739,094
2025-11-17Heino Mary AnneGrant / award (derivative)26,325$0.0026,325
2025-11-17Heino Mary AnneGrant / award14,285$0.00332,935
2025-08-29Marshall Robert J. Jr.Tax withholding727$54.9088,133
2025-08-20Luo Patrick (Cheng)Open-market sale3,365,000$56.153,477,227
2025-08-20Linn Michael GOpen-market sale3,365,000$56.153,477,227
2025-08-20Kim David TOpen-market sale3,365,000$56.153,477,227
2025-08-20Giauque NicolasOpen-market sale3,365,000$56.153,477,227

Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.