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Lantheus Ownership | Who Owns Lantheus?

OverviewForecastRevenueFinancialsChartTranscripts

Lantheus Ownership Summary

Lantheus is owned by 16.39% institutional investors, 2.32% insiders, and 81.29% 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 3.44% of its assets in Lantheus shares.

LNTH Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockLantheus16.39%2.32%81.29%
SectorHealthcare Stocks 232.86%10.65%-143.51%
IndustrySpecialty & Generic Drug Manufacturers Stocks20.25%11.78%67.97%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock8.60M12.50%$690.17M
Blackrock funding, inc. /de8.27M12.30%$550.13M
Vanguard group6.70M9.96%$445.84M
Janus henderson group6.20M8.92%$554.58M
Fmr4.20M6.13%$215.37M
Farallon capital management3.48M5.08%$178.35M
State street2.50M3.64%$128.07M
Morgan stanley1.76M2.61%$116.97M
Geode capital management1.73M2.57%$114.92M
Reinhart partners1.56M2.32%$118.70M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Sarissa capital management lp181.45K5.16%$9.31M
Polaris capital management617.00K3.83%$46.80M
Velan capital investment management lp73.55K3.54%$3.77M
Reinhart partners1.56M3.41%$118.70M
Private capital management560.66K2.57%$28.76M
Brigade capital management, lp316.35K1.99%$16.23M
Villanova investment management23.23K1.81%$1.76M
Sector gamma as93.34K1.67%$7.08M
Expect equity27.22K1.36%$1.40M
Silverberg bernstein capital management32.18K1.34%$2.44M

Top Buyers

HolderShares% AssetsChange
Janus henderson group6.20M0.28%2.61M
Norges bank1.14M0.01%1.14M
Carmignac gestion807.41K0.62%510.41K
Ubs group867.67K0.01%471.22K
Vanguard fiduciary trust458.98K0.01%458.98K

Top Sellers

HolderShares% AssetsChange
Farallon capital management3.48M0.73%-3.25M
Morgan stanley1.76M0.01%-2.12M
Westfield capital management co lp---1.50M
T. rowe price investment management50.00--1.43M
Macquarie group---1.04M

New Positions

HolderShares% AssetsChangeValue
Norges bank1.14M0.01%1.14M$76.20M
Vanguard fiduciary trust458.98K0.01%458.98K$34.81M
Hotchkis & wiley capital management223.10K0.04%223.10K$11.44M
Nearwater capital markets119.60K0.08%119.60K$6.13M
Velan capital investment management lp73.55K3.54%73.55K$3.77M

Sold Out

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

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 2025139-67.97%11,018,815-84.63%160.15%56-69.40%56-69.40%
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%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
iShares Core S&P Mid-Cap ETF2.24M3.44%-1.14K
Vanguard US Total Market Shares ETF2.22M3.24%1.63K
Vanguard Total Stock Mkt Idx Inv2.05M3.16%-41.75K
Avantis US Small Cap Value ETF1.61M2.48%-
iShares Russell 2000 ETF1.54M2.36%12.97K
Vanguard Small Cap Index1.49M2.29%-14.49K
Carmignac Investissement A EUR Acc1.35M2.07%50.00K
Janus Henderson Enterprise D1.13M1.75%-
Janus Inst Mid Cap Growth CF1.13M1.74%-
Janus Henderson US SMID Cap Growth MA1.00M1.45%1.00M

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
2026 Q1--
2025 Q4--
2025 Q3-5
2025 Q2-9
2025 Q1-9

LNTH Ownership FAQ

Who Owns Lantheus?

Lantheus shareholders are primarily institutional investors at 16.39%, followed by 2.32% insiders and 81.29% retail investors. The average institutional ownership in Lantheus's industry, Specialty & Generic Drug Manufacturers Stocks, is 20.25%, 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, 12.30%), and Vanguard group (6.7M shares, 9.96%). Together, they hold 34.76% 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 3.44% of its total shares outstanding invested in 2.24M Lantheus shares.

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