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LNTH Insider Trading

Insider Ownership Percentage: 1.50%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $384,430,030.78

Lantheus Insider Trading History Chart

This chart shows the insider buying and selling history at Lantheus by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Lantheus Share Price & Price History

Current Price: $76.43
Price Change: ▼ Price Decrease of -1.56 (-2.00%)
As of 03/20/2026 05:00 PM ET

This chart shows the closing price history over time for LNTH up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Lantheus Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
8/20/2025Farallon Partners L L C/CaInsiderSell3,365,000$56.15$188,944,750.003,477,227View SEC Filing Icon  
8/20/2025Rajiv A PatelInsiderSell3,365,000$56.15$188,944,750.003,477,227View SEC Filing Icon  
8/19/2025Farallon Partners L L C/CaInsiderSell41,000$55.34$2,268,940.006,842,227View SEC Filing Icon  
8/19/2025Rajiv A PatelInsiderSell41,000$55.34$2,268,940.006,842,227View SEC Filing Icon  
6/2/2025Mary Anne HeinoDirectorSell26,066$76.83$2,002,650.78318,650View SEC Filing Icon  
3/17/2025Robert J. Marshall, Jr.CFOSell10,000$100.52$1,005,200.00113,860View SEC Filing Icon  
3/13/2025Mary Anne HeinoDirectorSell2$100.13$200.268,618View SEC Filing Icon  
3/3/2025Mary Anne HeinoDirectorSell53,107$94.35$5,010,645.45440,399View SEC Filing Icon  
1/15/2025James H. ThrallDirectorSell1,000$94.76$94,760.0033,207View SEC Filing Icon  
8/12/2024Gerard BerDirectorSell15,500$96.48$1,495,440.0021,221View SEC Filing Icon  
8/8/2024Paul BlanchfieldPresidentSell2,000$96.39$192,780.0098,980View SEC Filing Icon  
8/2/2024Mary Anne HeinoDirectorSell10,481$95.50$1,000,935.50454,923View SEC Filing Icon  
7/15/2024Andrea SabensCAOSell341$123.15$41,994.1562,216View SEC Filing Icon  
7/10/2024Gary J. PrudenDirectorSell12,530$95.04$1,190,851.2011,978View SEC Filing Icon  
6/13/2024Andrea SabensCAOSell341$79.77$27,201.5762,557View SEC Filing Icon  
6/7/2024Mary Anne HeinoDirectorSell1$81.26$81.2637,719View SEC Filing Icon  
5/30/2024Daniel NiedzwieckiInsiderSell12,873$79.86$1,028,037.7880,244View SEC Filing Icon  
5/28/2024Heinz Christoph MaeusliDirectorSell18,373$79.19$1,454,957.8723,340View SEC Filing Icon  
5/13/2024Andrea SabensCAOSell341$76.89$26,219.4962,898View SEC Filing Icon  
4/15/2024Andrea SabensCAOSell341$61.24$20,882.8463,239View SEC Filing Icon  
3/6/2024Lantheus Alpha Therapy, LlcMajor ShareholderBuy60,431,039$0.95$57,409,487.05116,773,394View SEC Filing Icon  
3/4/2024Mary Anne HeinoDirectorSell93,863$65.31$6,130,192.53251,643View SEC Filing Icon  
2/13/2024Andrea SabensCAOSell341$55.31$18,860.7158,403View SEC Filing Icon  
1/16/2024Andrea SabensCAOSell341$56.01$19,099.4158,744View SEC Filing Icon  
11/16/2023Paul BlanchfieldPresidentSell1,500$67.96$101,940.0088,651View SEC Filing Icon  
11/13/2023Andrea SabensCAOSell341$63.57$21,677.3759,426View SEC Filing Icon  
11/13/2023Mary Anne HeinoCEOSell11,780$63.72$750,621.60317,687View SEC Filing Icon  
9/15/2023Daniel NiedzwieckiInsiderSell2,846$66.43$189,059.7866,295View SEC Filing Icon  
8/21/2023Paul BlanchfieldPresidentSell408$66.10$26,968.8090,067View SEC Filing Icon  
8/21/2023Paul BlanchfieldPresidentSell408$66.10$26,968.8090,067View SEC Filing Icon  
8/18/2023Paul BlanchfieldPresidentSell1,500$65.19$97,785.0090,475View SEC Filing Icon  
8/11/2023Daniel NiedzwieckiInsiderSell4,297$67.93$291,895.2166,295View SEC Filing Icon  
8/11/2023Mary Anne HeinoCEOSell10,950$68.58$750,951.00329,467View SEC Filing Icon  
7/19/2023Andrea SabensCAOSell1,752$90.87$159,204.2459,767View SEC Filing Icon  
6/2/2023Minnie Baylor-HenryDirectorSell6$86.22$517.3216View SEC Filing Icon  
5/18/2023Paul BlanchfieldPresidentSell1,500$97.93$146,895.0092,743View SEC Filing Icon  
5/15/2023Andrea SabensCAOSell385$99.36$38,253.6061,519View SEC Filing Icon  
5/15/2023Robert J. Marshall, Jr.CFOSell10,000$99.36$993,600.00118,298View SEC Filing Icon  
5/11/2023Daniel NiedzwieckiInsiderSell6,113$98.82$604,086.6672,058View SEC Filing Icon  
4/17/2023Andrea SabensCAOSell386$88.67$34,226.6261,904View SEC Filing Icon  
4/17/2023Etienne MontagutInsiderSell2,118$88.67$187,803.0667,254View SEC Filing Icon  
4/3/2023Etienne MontagutInsiderSell3,684$82.09$302,419.5669,372View SEC Filing Icon  
3/27/2023Brian A. MarkisonDirectorSell13,290$81.13$1,078,217.7019,318View SEC Filing Icon  
3/27/2023Etienne MontagutInsiderSell14,528$81.13$1,178,656.6473,056View SEC Filing Icon  
3/27/2023Mary Anne HeinoCEOSell44,484$80.77$3,592,972.68419,397View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Lantheus (NASDAQ:LNTH)

99.06% of Lantheus stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at LNTH by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Lantheus Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
3/17/2026Rockefeller Capital Management L.P.2,023$0.14M0.0%+65.5%0.003%Search for SEC Filing on Google Icon
3/9/2026EMC Capital Management962$64K0.0%-15.0%0.001%Search for SEC Filing on Google Icon
2/24/2026Villanova Investment Management Co LLC22,710$1.51M1.1%N/A0.034%Search for SEC Filing on Google Icon
2/24/2026Pacer Advisors Inc.255,293$16.99M0.0%-39.5%0.385%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.366,124$24.37M0.0%-50.0%0.552%Search for SEC Filing on Google Icon
2/19/2026Alberta Investment Management Corp24,300$1.62M0.0%N/A0.037%Search for SEC Filing on Google Icon
2/18/2026Vident Advisory LLC44,763$2.98M0.0%+0.5%0.068%Search for SEC Filing on Google Icon
2/18/2026State of Tennessee Department of Treasury30,744$2.06M0.0%-25.8%0.046%Search for SEC Filing on Google Icon
2/18/2026Mackenzie Financial Corp657,674$44.08M0.1%+31.1%0.992%Search for SEC Filing on Google Icon
2/18/2026XTX Topco Ltd18,440$1.23M0.0%+64.8%0.028%Search for SEC Filing on Google Icon
2/18/2026Vestal Point Capital LP360,000$23.96M0.8%+111.8%0.543%Search for SEC Filing on Google Icon
2/18/2026Summit Street Capital Management LLC405,664$27M4.2%N/A0.612%Search for SEC Filing on Google Icon
2/18/2026Private Capital Management LLC558,824$37.19M3.4%-0.3%0.843%Search for SEC Filing on Google Icon
2/18/2026Quadrature Capital Ltd3,924$0.26M0.0%N/A0.006%Search for SEC Filing on Google Icon
2/18/2026Moore Capital Management LP25,984$1.73M0.0%+30.3%0.039%Search for SEC Filing on Google Icon
2/18/2026Janus Henderson Group PLC5,707,247$379.82M0.2%-14.6%8.607%Search for SEC Filing on Google Icon
2/18/2026Gotham Asset Management LLC26,401$1.76M0.0%-33.9%0.040%Search for SEC Filing on Google Icon
2/18/2026Expect Equity LLC29,699$1.98M1.9%+9.1%0.045%Search for SEC Filing on Google Icon
2/18/2026Balyasny Asset Management L.P.140,781$9.37M0.0%+391.8%0.212%Search for SEC Filing on Google Icon
2/17/2026Freestone Grove Partners LP608,526$40.50M0.3%+4,114.8%0.918%Search for SEC Filing on Google Icon
2/17/2026Guggenheim Capital LLC4,883$0.33M0.0%-52.4%0.007%Search for SEC Filing on Google Icon
2/17/2026Schonfeld Strategic Advisors LLC8,610$0.57M0.0%N/A0.013%Search for SEC Filing on Google Icon
2/17/2026AQR Capital Management LLC403,622$26.86M0.0%+368.0%0.609%Search for SEC Filing on Google Icon
2/17/2026Abel Hall LLC3,743$0.25M0.1%N/A0.006%Search for SEC Filing on Google Icon
2/17/2026EFG International AG900$60K0.0%N/A0.001%Search for SEC Filing on Google Icon
2/17/2026Equitable Holdings Inc.3,640$0.24M0.0%N/A0.005%Search for SEC Filing on Google Icon
2/17/2026FIL Ltd214,808$14.30M0.0%N/A0.324%Search for SEC Filing on Google Icon
2/17/2026Farallon Capital Management LLC5,427,479$361.20M1.7%+56.1%8.185%Search for SEC Filing on Google Icon
2/17/2026Price T Rowe Associates Inc. MD817,247$54.39M0.0%+0.7%1.232%Search for SEC Filing on Google Icon
2/17/2026Osaic Holdings Inc.9,317$0.62M0.0%-21.1%0.014%Search for SEC Filing on Google Icon
2/17/2026Integral Health Asset Management LLC100,000$6.66M0.3%N/A0.151%Search for SEC Filing on Google Icon
2/17/2026Captrust Financial Advisors22,603$1.50M0.0%-2.7%0.034%Search for SEC Filing on Google Icon
2/17/2026Rice Hall James & Associates LLC44,648$2.97M0.2%+1.2%0.067%Search for SEC Filing on Google Icon
2/17/2026Alberta Investment Management Corp24,300$1.62M0.0%N/A0.037%Search for SEC Filing on Google Icon
2/16/2026Vanguard Personalized Indexing Management LLC5,879$0.39M0.0%-9.3%0.009%Search for SEC Filing on Google Icon
2/16/2026Verition Fund Management LLC87,500$5.82M0.0%-46.3%0.132%Search for SEC Filing on Google Icon
2/16/2026Focus Partners Wealth78,399$5.22M0.0%-2.2%0.118%Search for SEC Filing on Google Icon
2/16/2026Healthcare of Ontario Pension Plan Trust Fund76,179$5.07M0.0%N/A0.115%Search for SEC Filing on Google Icon
2/16/2026Landscape Capital Management L.L.C.15,060$1M0.1%N/A0.023%Search for SEC Filing on Google Icon
2/16/2026Epoch Investment Partners Inc.407,529$27.12M0.2%-10.6%0.615%Search for SEC Filing on Google Icon
2/16/2026Axim Planning & Wealth3,351$0.22M0.2%-31.0%0.005%Search for SEC Filing on Google Icon
2/13/2026Kestra Advisory Services LLC3,273$0.22M0.0%N/A0.005%Search for SEC Filing on Google Icon
2/13/2026Marshall Wace LLP232,677$15.49M0.0%+569.2%0.351%Search for SEC Filing on Google Icon
2/13/2026The Manufacturers Life Insurance Company 66,270$4.41M0.0%-97.0%0.100%Search for SEC Filing on Google Icon
2/13/2026CANADA LIFE ASSURANCE Co38,862$2.59M0.0%-26.9%0.059%Search for SEC Filing on Google Icon
2/13/2026Walleye Capital LLC5,586$0.37M0.0%-63.7%0.008%Search for SEC Filing on Google Icon
2/13/2026Bridgewater Associates LP166,706$11.09M0.0%-43.9%0.251%Search for SEC Filing on Google Icon
2/13/2026UMB Bank n.a.955$64K0.0%+104.1%0.001%Search for SEC Filing on Google Icon
2/13/2026Stifel Financial Corp59,969$3.99M0.0%+5.1%0.090%Search for SEC Filing on Google Icon
2/13/2026Smartleaf Asset Management LLC508$34K0.0%+63.3%0.001%Search for SEC Filing on Google Icon
2/13/2026Jacobs Levy Equity Management Inc.182,305$12.13M0.0%+33.1%0.275%Search for SEC Filing on Google Icon
2/13/2026Public Sector Pension Investment Board85,761$5.71M0.0%N/A0.129%Search for SEC Filing on Google Icon
2/13/2026First Trust Advisors LP15,545$1.04M0.0%-9.1%0.023%Search for SEC Filing on Google Icon
2/13/2026Velan Capital Investment Management LP74,687$4.97M2.9%+1.6%0.113%Search for SEC Filing on Google Icon
2/13/2026Charles Schwab Investment Management Inc.643,168$42.80M0.0%+2.1%0.970%Search for SEC Filing on Google Icon
2/13/2026Heron Bay Capital Management24,788$1.65M0.3%+47.6%0.037%Search for SEC Filing on Google Icon
2/13/2026Carmignac Gestion1,122,000$74.67M1.0%+39.0%1.692%Search for SEC Filing on Google Icon
2/13/2026Police & Firemen s Retirement System of New Jersey17,901$1.19M0.0%-6.0%0.027%Search for SEC Filing on Google Icon
2/13/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC499,873$33.27M0.0%+11.5%0.754%Search for SEC Filing on Google Icon
2/13/2026Quadrant Capital Group LLC7,458$0.50M0.0%+14.4%0.011%Search for SEC Filing on Google Icon
2/12/2026Brooklyn Investment Group4,194$0.28M0.0%N/A0.006%Search for SEC Filing on Google Icon
2/12/2026Orion Porfolio Solutions LLC14,168$0.94M0.0%+55.8%0.021%Search for SEC Filing on Google Icon
2/12/2026MetLife Investment Management LLC68,242$4.54M0.0%-7.5%0.103%Search for SEC Filing on Google Icon
2/12/2026Oak Associates Ltd. OH39,164$2.61M0.2%N/A0.059%Search for SEC Filing on Google Icon
2/12/2026Cibc World Markets Corp4,435$0.30M0.0%N/A0.007%Search for SEC Filing on Google Icon
2/12/2026Commonwealth Equity Services LLC6,681$0.45M0.0%-87.7%0.010%Search for SEC Filing on Google Icon
2/12/2026Tripletail Wealth Management LLC1,040$70K0.1%-19.4%0.002%Search for SEC Filing on Google Icon
2/12/2026Renaissance Technologies LLC75,782$5.04M0.0%+26.7%0.114%Search for SEC Filing on Google Icon
2/12/2026Dimensional Fund Advisors LP1,415,463$94.20M0.0%+3.2%2.135%Search for SEC Filing on Google Icon
2/12/2026Federated Hermes Inc.36,230$2.41M0.0%-80.5%0.055%Search for SEC Filing on Google Icon
2/12/2026Ensign Peak Advisors Inc6,799$0.45M0.0%-85.2%0.010%Search for SEC Filing on Google Icon
2/12/2026Loomis Sayles & Co. L P162,415$10.81M0.0%-50.4%0.245%Search for SEC Filing on Google Icon
2/12/2026South Dakota Investment Council19,359$1.29M0.0%-7.6%0.029%Search for SEC Filing on Google Icon
2/12/2026Sector Gamma AS93,823$6.24M1.4%+45.7%0.141%Search for SEC Filing on Google Icon
2/12/2026Logan Capital Management Inc.7,662$0.51M0.0%-31.8%0.012%Search for SEC Filing on Google Icon
2/12/2026Nuveen LLC151,816$10.10M0.0%-2.6%0.229%Search for SEC Filing on Google Icon
2/12/2026Xponance LLC8,153$0.54M0.0%-15.4%0.012%Search for SEC Filing on Google Icon
2/11/2026Inceptionr LLC3,138$0.21M0.1%N/A0.005%Search for SEC Filing on Google Icon
2/11/2026Townsquare Capital LLC7,622$0.51M0.1%-26.9%0.011%Search for SEC Filing on Google Icon
2/11/2026Janney Montgomery Scott LLC19,247$1.28M0.0%-31.0%0.029%Search for SEC Filing on Google Icon
2/11/2026Deutsche Bank AG235,298$15.66M0.0%-55.4%0.355%Search for SEC Filing on Google Icon
2/11/2026LPL Financial LLC76,953$5.12M0.0%-16.6%0.116%Search for SEC Filing on Google Icon
2/11/2026Franklin Resources Inc.74,096$4.93M0.0%+4.1%0.112%Search for SEC Filing on Google Icon
2/11/2026O Shaughnessy Asset Management LLC5,161$0.34M0.0%N/A0.008%Search for SEC Filing on Google Icon
2/11/2026CenterBook Partners LP38,354$2.55M0.1%N/A0.058%Search for SEC Filing on Google Icon
2/11/2026Los Angeles Capital Management LLC588$39K0.0%N/A0.001%Search for SEC Filing on Google Icon
2/11/2026Havemeyer Place LP9,096$0.61M0.1%N/A0.014%Search for SEC Filing on Google Icon
2/11/2026Vestcor Inc12,334$0.82M0.0%-31.6%0.019%Search for SEC Filing on Google Icon
2/11/2026Parallel Advisors LLC541$36K0.0%+122.6%0.001%Search for SEC Filing on Google Icon
2/11/2026Vise Technologies Inc.4,082$0.27M0.0%N/A0.006%Search for SEC Filing on Google Icon
2/10/2026TD Asset Management Inc711,894$47.38M0.0%-10.0%1.074%Search for SEC Filing on Google Icon
2/10/2026Lido Advisors LLC62,205$4.14M0.0%-7.4%0.094%Search for SEC Filing on Google Icon
2/10/2026Reinhart Partners LLC.1,562,576$103.99M3.1%+15.9%2.356%Search for SEC Filing on Google Icon
2/10/2026Goldman Sachs Group Inc.357,134$23.77M0.0%-35.9%0.539%Search for SEC Filing on Google Icon
2/10/2026Thompson Siegel & Walmsley LLC234,531$15.61M0.3%-14.5%0.354%Search for SEC Filing on Google Icon
2/10/2026Commonwealth of Pennsylvania Public School Empls Retrmt SYS16,594$1.10M0.0%-4.9%0.025%Search for SEC Filing on Google Icon
2/10/2026BNP Paribas Financial Markets306,723$20.41M0.0%-53.5%0.463%Search for SEC Filing on Google Icon
2/10/2026Norges Bank1,144,955$76.20M0.0%N/A1.727%Search for SEC Filing on Google Icon
2/10/2026Eurizon Capital SGR S.p.A.1,419$95K0.0%N/A0.002%Search for SEC Filing on Google Icon
2/10/2026Savant Capital LLC5,440$0.36M0.0%N/A0.008%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Lantheus logo
Lantheus Holdings, Inc. develops, manufactures, and commercializes diagnostic and therapeutic products that assist clinicians in the diagnosis and treatment of heart, cancer, and other diseases worldwide. It provides DEFINITY, an injectable ultrasound enhancing agent used in echocardiography exams; TechneLite, a technetium generator for nuclear medicine procedures; Xenon-133, a radiopharmaceutical gas to assess pulmonary function; Neurolite, an injectable imaging agent to identify the area within the brain where blood flow has been blocked or reduced due to stroke; Cardiolite, an injectable Tc-99m-labeled imaging agent to assess blood flow to the muscle of the heart; and PYLARIFY, an F 18-labelled PSMA-targeted PET imaging agent used for imaging of PSMA positive-lesions in men with prostate cancer. The company also offers Automated Bone Scan Index that calculates the disease burden of prostate cancer by detecting and classifying bone scan tracer uptakes as metastatic or benign lesions using an artificial neural network; RELISTOR for opioid-induced constipation; and aPROMISE, an artificial intelligence medical device software; and PYLARIFY AI, an AI-based medical device software to perform quantitative assessment of PSMA PET/CT images in prostate cancer. In addition, it develops 1095, a PSMA-targeted iodine-131-labeled small molecule; PNT2002, a radiopharmaceutical therapy to treat mCRPC; PNT2003, an SSTR therapy that treats patients with SSTR-positive neuroendocrine tumors; MK-6240, a F 18-labeled PET imaging agent that targets Tau tangles in Alzheimer's disease; LNTH-1363S, an fibroblast activation protein, alpha targeted, copper-64 labeled PET imaging agent; and flurpiridaz used to assess blood flow to the heart;. It has collaboration agreements with GE Healthcare; NanoMab Technology Limited; Curium; RefleXion Medical, Inc.; POINT; Regeneron Pharmaceuticals, Inc; and Ratio Therapeutics LLC. The company was founded in 1956 and is based in Bedford, Massachusetts.
Read More on Lantheus

Today's Range

Now: $76.43
Low: $75.54
High: $78.01

50 Day Range

MA: $71.35
Low: $64.25
High: $83.22

52 Week Range

Now: $76.43
Low: $47.25
High: $108.91

Volume

1,890,379 shs

Average Volume

984,162 shs

Market Capitalization

$4.98 billion

P/E Ratio

22.68

Dividend Yield

N/A

Beta

N/A

Who are the company insiders with the largest holdings of Lantheus?

Lantheus' top insider investors include:
  1. Farallon Partners L L C/Ca (Insider)
  2. Rajiv A Patel (Insider)
  3. Mary Anne Heino (Director)
  4. Robert J Jr Marshall (CFO)
  5. Paul Blanchfield (President)
  6. Daniel Niedzwiecki (Insider)
  7. Andrea Sabens (CAO)
  8. James H Thrall (Director)
  9. Heinz Christoph Maeusli (Director)
  10. Gerard Ber (Director)
  11. Gary J Pruden (Director)
Learn More about top insider investors at Lantheus.

Who are the major institutional investors of Lantheus?

Lantheus' top institutional investors include:
  1. Vanguard Group Inc. — 10.10%
  2. Janus Henderson Group PLC — 8.61%
  3. M&T Bank Corp — 8.32%
  4. Farallon Capital Management LLC — 8.19%
  5. Geode Capital Management LLC — 2.60%
  6. Reinhart Partners LLC. — 2.36%
Learn More about top institutional investors of Lantheus stock.

Which major investors are selling Lantheus stock?

In the previous quarter, LNTH stock was sold by these institutional investors:
  1. The Manufacturers Life Insurance Company
  2. Universal Beteiligungs und Servicegesellschaft mbH
  3. Assenagon Asset Management S.A.
  4. Janus Henderson Group PLC
  5. Invesco Ltd.
  6. BNP Paribas Financial Markets
  7. Deutsche Bank AG
  8. Vanguard Group Inc.
In the last year, company insiders that have sold Lantheus company stock include:
  1. Farallon Partners L L C/Ca (Insider)
  2. Rajiv A Patel (Insider)
  3. Mary Anne Heino (Director)
Learn More investors selling Lantheus stock.

Which major investors are buying Lantheus stock?

In the previous quarter, LNTH stock was acquired by institutional investors including:
  1. M&T Bank Corp
  2. Farallon Capital Management LLC
  3. Norges Bank
  4. Freestone Grove Partners LP
  5. Summit Street Capital Management LLC
  6. AQR Capital Management LLC
  7. Carmignac Gestion
  8. Reinhart Partners LLC.