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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. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.24% of its assets in Lantheus shares.

LNTH Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockLantheus16.39%2.32%81.29%
SectorHealthcare Stocks 231.98%10.74%-142.72%
IndustrySpecialty & Generic Drug Manufacturers Stocks20.82%11.62%67.56%

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%$103.99M

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
Reinhart partners1.56M3.11%$103.99M
Polaris capital management538.00K2.97%$35.80M
Private capital management560.66K2.57%$28.76M
Brigade capital management, lp316.35K1.99%$16.23M
Sector gamma as93.82K1.42%$6.24M
Expect equity27.22K1.36%$1.40M
Silverberg bernstein capital management31.88K1.23%$2.12M
Mesirow institutional investment management153.80K1.06%$13.76M

Top Buyers

HolderShares% AssetsChange
Janus henderson group6.20M0.28%2.61M
Norges bank1.14M0.01%1.14M
Carmignac gestion807.41K0.62%510.41K
Hotchkis & wiley capital management223.10K0.04%223.10K
Reinhart partners1.56M3.11%214.82K

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
Assenagon asset management71.94K0.01%-1.21M

New Positions

HolderShares% AssetsChangeValue
Norges bank1.14M0.01%1.14M$76.20M
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
Trexquant investment lp48.27K0.03%48.27K$2.48M

Sold Out

HolderChange
True wealth design-1.00
Harbor investment advisory-1.00
Claris advisors, llc / mo /-1.00
Manchester capital management-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
Vanguard US Total Market Shares ETF2.22M3.24%1.63K
iShares Core S&P Mid-Cap ETF2.14M3.23%-54.72K
Vanguard Total Stock Mkt Idx Inv2.07M3.12%5.33K
iShares Russell 2000 ETF1.61M2.43%142.78K
Vanguard Small Cap Index1.50M2.27%-302.00
Avantis US Small Cap Value ETF1.15M1.73%13.92K
Janus Henderson Enterprise D1.13M1.71%-
Janus Inst Mid Cap Growth CF1.13M1.71%-
Carmignac Investissement A EUR Acc1.06M1.60%259.43K
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 20.82%, 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?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Lantheus shares, with 3.24% of its total shares outstanding invested in 2.22M Lantheus shares.

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