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Lantheus Ownership | Who Owns Lantheus?

OverviewForecastRevenueFinancialsChartTranscripts

Lantheus Ownership Summary

Lantheus is owned by 25.48% institutional investors, 2.30% insiders, and 72.23% retail investors. 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
StockLantheus25.48%2.30%72.23%
SectorHealthcare Stocks 41.89%10.80%47.31%
IndustrySpecialty & Generic Drug Manufacturers Stocks26.16%11.89%61.94%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock8.60M12.50%$690.17M
Blackrock funding, inc. /de8.27M12.06%$423.95M
Vanguard group6.95M10.15%$356.59M
Janus henderson group6.20M8.92%$554.58M
Fmr4.20M6.13%$215.37M
Morgan stanley3.88M5.66%$198.91M
Farallon capital management3.48M5.08%$178.35M
State street2.50M3.64%$128.07M
Geode capital management1.75M2.56%$90.00M
Dimensional fund advisors lp1.37M2.00%$70.32M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Sarissa capital management lp181.45K5.16%$9.31M
Velan capital investment management lp73.55K3.54%$3.77M
Private capital management560.66K2.57%$28.76M
Reinhart partners1.35M2.25%$69.13M
Polaris capital management637.30K2.15%$32.69M
Brigade capital management, lp316.35K1.99%$16.23M
Expect equity27.22K1.36%$1.40M
Mesirow institutional investment management153.80K1.06%$13.76M
Silverberg bernstein capital management29.38K0.91%$1.51M
Portolan capital management297.21K0.82%$15.24M

Top Buyers

HolderShares% AssetsChange
Morgan stanley3.88M0.01%3.14M
Janus henderson group6.20M0.28%2.61M
Assenagon asset management1.28M0.09%1.28M
Polaris capital management637.30K2.15%637.30K
Carmignac gestion807.41K0.62%510.41K

Top Sellers

HolderShares% AssetsChange
Farallon capital management3.48M0.73%-3.25M
Westfield capital management co lp---1.50M
T. rowe price investment management50.00--1.43M
Invesco732.96K0.01%-950.76K
Wellington management group llp771.97K0.01%-947.37K

New Positions

HolderShares% AssetsChangeValue
Polaris capital management637.30K2.15%637.30K$32.69M
Norges bank292.75K0.00%292.75K$26.19M
Hotchkis & wiley capital management223.10K0.04%223.10K$11.44M
Nearwater capital markets119.60K0.08%119.60K$6.13M
Y-intercept (hong kong)75.38K0.09%75.38K$3.87M

Sold Out

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

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Sep 30, 2025181-63.73%17,455,107-78.58%250.18%68-72.13%87-49.71%
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%

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 25.48%, followed by 2.30% insiders and 72.22% retail investors. The average institutional ownership in Lantheus's industry, Specialty & Generic Drug Manufacturers Stocks, is 26.16%, which Lantheus falls below.

Who owns the most shares of Lantheus?

Lantheus’s largest shareholders are Blackrock (8.6M shares, 12.50%), Blackrock funding, inc. /de (8.27M shares, 12.06%), and Vanguard group (6.95M shares, 10.15%). Together, they hold 34.71% 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 5.16% of its assets in 181.45K Lantheus shares, valued at 9.31M$.

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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