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Lantheus Ownership | Who Owns Lantheus?

OverviewForecastRevenueFinancialsChartTranscripts

Lantheus Ownership Summary

Lantheus is owned by 119.77% institutional investors, 2.26% insiders. Blackrock is the largest institutional shareholder, holding 12.50% of LNTH shares. iShares Core S&P Mid-Cap ETF is the top mutual fund, with 3.31% of its assets in Lantheus shares.

LNTH Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockLantheus119.77%2.26%-22.02%
SectorHealthcare Stocks 487.91%11.08%-398.99%
IndustrySpecialty & Generic Drug Manufacturers Stocks43.51%11.55%44.95%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock8.60M12.50%$690.17M
Blackrock funding, inc. /de8.53M12.45%$698.55M
Vanguard group7.24M10.43%$647.98M
Farallon capital management6.72M9.81%$550.28M
Janus henderson group6.20M8.92%$554.58M
State street2.64M3.80%$236.15M
Fmr2.50M3.60%$223.97M
Invesco1.88M2.70%$167.75M
Geode capital management1.68M2.42%$150.58M
Westfield capital management co lp1.50M2.18%$122.39M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Sarissa capital management lp96.25K5.10%$7.88M
Reinhart partners1.37M4.70%$122.28M
Private capital management543.64K4.29%$44.50M
Nitorum capital344.44K4.18%$28.20M
Brigade capital management, lp143.15K2.69%$11.72M
Farallon capital management6.72M2.37%$550.28M
1492 capital management62.29K2.35%$5.10M
Polaris capital management637.30K2.15%$32.69M
S&t bank/pa61.92K1.77%$5.54M
Sector gamma as50.30K1.35%$4.12M

Top Buyers

HolderShares% AssetsChange
Janus henderson group6.20M0.28%2.61M
Assenagon asset management1.28M0.09%1.28M
Pitcairn750.23K0.50%744.42K
Farallon capital management6.72M2.37%699.00K
Polaris capital management637.30K2.15%637.30K

Top Sellers

HolderShares% AssetsChange
Portolan capital management254.48K1.31%-612.83K
Lord, abbett---431.11K
Hood river capital management407.18K0.47%-332.98K
Avidity partners management lp---290.00K
Invesco1.88M0.03%-265.55K

New Positions

HolderShares% AssetsChangeValue
Polaris capital management637.30K2.15%637.30K$32.69M
Keybank national association/oh307.69K0.11%307.69K$27.53M
Norges bank292.75K0.00%292.75K$26.19M
Wellington management group llp223.81K0.00%223.81K$20.02M
Capital world investors194.93K0.00%194.93K$15.96M

Sold Out

HolderChange
Harbor investment advisory-1.00
True wealth design-1.00
Claris advisors, llc / mo /-1.00
Hexagon capital partners-2.00
Financial management professionals-2.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 2025487-9.81%82,059,6234.11%1190.91%238-14.70%170-6.59%
Mar 31, 202527-94.65%2,832,340-96.22%40.04%7-97.29%14-91.76%
Dec 31, 2024492-6.29%74,683,5636.06%1071.05%252-5.62%166-8.29%
Sep 30, 20245187.69%70,264,5322.85%1011.02%2659.50%17710.63%
Jun 30, 20244759.20%68,214,8322.17%991.04%237-4.82%16024.03%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
iShares Core S&P Mid-Cap ETF2.25M3.31%-
Vanguard US Total Market Shares ETF2.22M3.24%1.63K
Vanguard Total Stock Mkt Idx Inv2.07M3.05%-43.78K
iShares Russell 2000 ETF1.62M2.39%-
Vanguard Small Cap Index1.60M2.35%-9.96K
Janus Henderson Enterprise D1.13M1.67%-
Janus Inst Mid Cap Growth CF1.13M1.64%101.01K
Janus Henderson Contrarian D1.08M1.58%-
Janus Henderson US Opportunistic Alpha1.08M1.56%200.92K
Janus Henderson Triton D1.00M1.47%-11.83K

Recent Insider Transactions

DateNameRoleActivityValue
Aug 19, 2025PATEL RAJIV A Member of a Group Owning 10%Sell$2.27M
Aug 20, 2025PATEL RAJIV A Member of a Group Owning 10%Sell$188.94M
Aug 20, 2025FARALLON PARTNERS L L C/CA Member of a Group Owning 10%Sell$188.94M
Aug 19, 2025FARALLON PARTNERS L L C/CA Member of a Group Owning 10%Sell$2.27M
Aug 13, 2025Blanchfield Paul PresidentSell$163.92K

Insider Transactions Trends

DateBuySell
2025 Q3-5
2025 Q2-9
2025 Q1-9
2024 Q4-6
2024 Q3-12

LNTH Ownership FAQ

Who Owns Lantheus?

Lantheus shareholders are primarily institutional investors at 119.77%, followed by 2.26% insiders and -22.03% retail investors. The average institutional ownership in Lantheus's industry, Specialty & Generic Drug Manufacturers Stocks, is 43.51%, which Lantheus exceeds.

Who owns the most shares of Lantheus?

Lantheus’s largest shareholders are Blackrock (8.6M shares, 12.50%), Blackrock funding, inc. /de (8.53M shares, 12.45%), and Vanguard group (7.24M shares, 10.43%). Together, they hold 35.38% of Lantheus’s total shares outstanding.

Does Blackrock own Lantheus?

Yes, BlackRock owns 12.50% of Lantheus, totaling 8.6M shares as of Jun 2024. This represents 0.02% of BlackRock's total assets, with a market value of 690.17M$. In the last quarter, BlackRock increased its holdings by 163.6K shares, a 1.94% change.

Who is Lantheus’s biggest shareholder by percentage of total assets invested?

Sarissa capital management lp is Lantheus’s biggest shareholder by percentage of total assets invested, with 5.10% of its assets in 96.25K Lantheus shares, valued at 7.88M$.

Who is the top mutual fund holder of Lantheus shares?

iShares Core S&P Mid-Cap ETF is the top mutual fund holder of Lantheus shares, with 3.31% of its total shares outstanding invested in 2.25M Lantheus shares.

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