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LNTH Insider Trading

Insider Ownership Percentage: 1.70%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $382,427,380.00

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: $103.92
Price Change: ▲ Price Increase of +0.726 (0.70%)
As of 06/18/2026 03:59 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  
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
6/18/2026Pacer Advisors Inc.7,704$0.58M0.0%-97.0%0.012%Search for SEC Filing on Google Icon
6/16/2026Empowered Funds LLC11,979$0.91M0.0%N/A0.018%Search for SEC Filing on Google Icon
6/15/2026Carmignac Gestion1,328,000$100.73M1.5%+18.4%2.040%Search for SEC Filing on Google Icon
6/12/2026Defilade Capital Management L.P.249,401$18.92M2.7%N/A0.383%Search for SEC Filing on Google Icon
6/3/2026Parallel Advisors LLC1,060$80K0.0%+95.9%0.002%Search for SEC Filing on Google Icon
5/27/2026Allen Capital Group LLC3,290$0.25M0.0%N/A0.005%Search for SEC Filing on Google Icon
5/19/2026Western Wealth Management LLC335$25K0.0%N/A0.001%Search for SEC Filing on Google Icon
5/19/2026Janus Henderson Group PLC4,774,841$362.17M0.2%-16.3%7.333%Search for SEC Filing on Google Icon
5/19/2026Centaurus Financial Inc.6,621$0.50M0.0%-7.9%0.010%Search for SEC Filing on Google Icon
5/18/2026EverSource Wealth Advisors LLC1,396$0.11M0.0%+157.1%0.002%Search for SEC Filing on Google Icon
5/18/2026California State Teachers Retirement System78,207$5.93M0.0%+22.3%0.120%Search for SEC Filing on Google Icon
5/18/2026Empowered Funds LLC11,979$0.91M0.0%N/A0.018%Search for SEC Filing on Google Icon
5/16/2026The Manufacturers Life Insurance Company 69,181$5.25M0.0%+4.4%0.106%Search for SEC Filing on Google Icon
5/16/2026Quantinno Capital Management LP9,772$0.74M0.0%+58.4%0.015%Search for SEC Filing on Google Icon
5/15/2026Rice Hall James & Associates LLC46,850$3.55M0.2%+4.9%0.072%Search for SEC Filing on Google Icon
5/15/2026Epoch Investment Partners Inc.649,751$49.28M0.3%+59.4%0.998%Search for SEC Filing on Google Icon
5/14/2026Healthcare of Ontario Pension Plan Trust Fund598,857$45.42M0.1%+686.1%0.920%Search for SEC Filing on Google Icon
5/14/2026Renaissance Technologies LLC77,182$5.85M0.0%+1.8%0.119%Search for SEC Filing on Google Icon
5/14/2026Oak Associates Ltd. OH40,082$3.04M0.2%+2.3%0.062%Search for SEC Filing on Google Icon
5/14/2026Inceptionr LLC6,695$0.51M0.1%+113.4%0.010%Search for SEC Filing on Google Icon
5/14/2026Lido Advisors LLC56,855$4.31M0.0%-8.6%0.087%Search for SEC Filing on Google Icon
5/13/2026First Trust Advisors LP60,258$4.57M0.0%+287.6%0.093%Search for SEC Filing on Google Icon
5/8/2026PNC Financial Services Group Inc.3,346$0.25M0.0%+18.5%0.005%Search for SEC Filing on Google Icon
5/7/2026Dimensional Fund Advisors LP1,379,570$104.63M0.0%-2.5%2.119%Search for SEC Filing on Google Icon
5/7/2026Parallel Advisors LLC1,060$80K0.0%+95.9%0.002%Search for SEC Filing on Google Icon
5/7/2026Swiss National Bank131,154$9.95M0.0%-2.2%0.201%Search for SEC Filing on Google Icon
5/7/2026Crescent Grove Advisors LLC16,907$1.28M0.1%-19.8%0.026%Search for SEC Filing on Google Icon
5/6/2026California Public Employees Retirement System131,776$10M0.0%+10.1%0.202%Search for SEC Filing on Google Icon
5/6/2026Assetmark Inc.22,495$1.71M0.0%-81.0%0.035%Search for SEC Filing on Google Icon
5/6/2026Bessemer Group Inc.514$39K0.0%+221.3%0.001%Search for SEC Filing on Google Icon
5/6/2026Allspring Global Investments Holdings LLC8,753$0.66M0.0%-16.4%0.013%Search for SEC Filing on Google Icon
5/5/2026Three Seasons Wealth LLC13,495$1.02M0.4%+40.5%0.021%Search for SEC Filing on Google Icon
5/5/2026Harel Insurance Investments & Financial Services Ltd.2,309$0.18M0.0%-10.5%0.004%Search for SEC Filing on Google Icon
5/5/2026Sanctuary Advisors LLC3,529$0.27M0.0%-44.7%0.005%Search for SEC Filing on Google Icon
5/4/2026Bleakley Financial Group LLC13,951$1.06M0.0%+20.4%0.021%Search for SEC Filing on Google Icon
5/4/2026State of Michigan Retirement System16,000$1.21M0.0%+1.9%0.025%Search for SEC Filing on Google Icon
5/4/2026Principal Financial Group Inc.225,716$17.12M0.0%-0.6%0.347%Search for SEC Filing on Google Icon
5/4/2026Citizens National Bank Trust Department4,406$0.33M0.1%-42.7%0.007%Search for SEC Filing on Google Icon
5/4/2026Teachers Retirement System of The State of Kentucky33,264$2.52M0.0%+63.7%0.051%Search for SEC Filing on Google Icon
5/1/2026Sovran Advisors LLC2,780$0.21M0.0%N/A0.004%Search for SEC Filing on Google Icon
5/1/2026Sequoia Financial Advisors LLC3,916$0.30M0.0%N/A0.006%Search for SEC Filing on Google Icon
4/30/2026Equitable Trust Co.9,420$0.72M0.0%-26.8%0.014%Search for SEC Filing on Google Icon
4/30/2026Waterfront Wealth Inc.9,843$0.75M0.1%-46.8%0.015%Search for SEC Filing on Google Icon
4/30/2026Peterson Wealth Services6,684$0.51M0.1%+3,160.5%0.010%Search for SEC Filing on Google Icon
4/30/2026SkyOak Wealth LLC64,284$4.88M0.9%+1.8%0.099%Search for SEC Filing on Google Icon
4/30/2026Sumitomo Mitsui Trust Group Inc.3,033$0.23M0.0%N/A0.005%Search for SEC Filing on Google Icon
4/30/2026Isthmus Partners LLC43,185$3.28M0.3%+11.4%0.066%Search for SEC Filing on Google Icon
4/30/2026Oregon Public Employees Retirement Fund13,559$1.03M0.0%+2.3%0.021%Search for SEC Filing on Google Icon
4/29/2026Capstone Wealth Management Group LLC3,566$0.27M0.1%-18.5%0.005%Search for SEC Filing on Google Icon
4/28/2026Abel Hall LLC3,915$0.30M0.1%+4.6%0.006%Search for SEC Filing on Google Icon
4/27/2026New York State Teachers Retirement System71,756$5.44M0.0%-2.8%0.110%Search for SEC Filing on Google Icon
4/25/2026Strs Ohio5,000$0.38M0.0%+28.2%0.008%Search for SEC Filing on Google Icon
4/25/2026Keybank National Association OH22,800$1.73M0.0%-47.7%0.035%Search for SEC Filing on Google Icon
4/22/2026Janney Montgomery Scott LLC18,542$1.41M0.0%-3.7%0.028%Search for SEC Filing on Google Icon
4/22/20261492 Capital Management LLC27,424$2.08M0.8%N/A0.042%Search for SEC Filing on Google Icon
4/22/2026Pictet Asset Management Holding SA11,402$0.87M0.0%+7.0%0.018%Search for SEC Filing on Google Icon
4/21/2026Louisiana State Employees Retirement System19,200$1.46M0.0%N/A0.029%Search for SEC Filing on Google Icon
4/20/2026Blue Trust Inc.636$48K0.0%-35.8%0.001%Search for SEC Filing on Google Icon
4/20/2026Assenagon Asset Management S.A.132,319$10.04M0.0%+83.9%0.203%Search for SEC Filing on Google Icon
4/17/2026Campbell Newman Asset Management Inc.35,206$2.67M0.2%+1.7%0.054%Search for SEC Filing on Google Icon
4/16/2026Capstone Wealth Management Group LLC4,375$0.29M0.2%N/A0.007%Search for SEC Filing on Google Icon
4/16/2026E. Ohman J or Asset Management AB36,937$2.80M0.1%+8.8%0.057%Search for SEC Filing on Google Icon
4/16/2026Silverberg Bernstein Capital Management LLC32,179$2.44M1.3%+0.9%0.049%Search for SEC Filing on Google Icon
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
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: $103.92
Low: $102.97
High: $105.00

50 Day Range

MA: $92.89
Low: $80.03
High: $105.03

52 Week Range

Now: $103.92
Low: $47.25
High: $107.99

Volume

1,090,749 shs

Average Volume

991,222 shs

Market Capitalization

$6.77 billion

P/E Ratio

25.04

Dividend Yield

N/A

Beta

N/A

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

Lantheus' top insider investors include:
  1. Lantheus Alpha Therapy, Llc (Major Shareholder)
  2. Farallon Partners L L C/Ca (Insider)
  3. Rajiv A Patel (Insider)
  4. Mary Anne Heino (CEO)
  5. Mary Anne Heino (Director)
  6. Michael P Duffy (Insider)
  7. Michael P Duffy (SVP)
  8. Robert J Jr Marshall (CFO)
  9. Cesare Orlandi (Insider)
  10. Paul Blanchfield (President)
Learn More about top insider investors at Lantheus.

Who are the major institutional investors of Lantheus?

Lantheus' top institutional investors include:
  1. Janus Henderson Group PLC — 7.33%
  2. Dimensional Fund Advisors LP — 2.12%
  3. Carmignac Gestion — 2.04%
  4. Epoch Investment Partners Inc. — 1.00%
  5. Healthcare of Ontario Pension Plan Trust Fund — 0.92%
  6. Defilade Capital Management L.P. — 0.38%
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. Janus Henderson Group PLC
  2. Assetmark Inc.
  3. Dimensional Fund Advisors LP
  4. Keybank National Association OH
  5. Waterfront Wealth Inc.
  6. Lido Advisors LLC
  7. Crescent Grove Advisors LLC
  8. Equitable Trust Co.
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)
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. Healthcare of Ontario Pension Plan Trust Fund
  2. Defilade Capital Management L.P.
  3. Epoch Investment Partners Inc.
  4. Carmignac Gestion
  5. Assenagon Asset Management S.A.
  6. First Trust Advisors LP
  7. 1492 Capital Management LLC
  8. Louisiana State Employees Retirement System

Lantheus Active Insiders

Mary Anne Heino
Mary Anne Heino (Age 66)
CEO
Brian A Markison
Brian A Markison
CEO & Director
John J Bolla
John J Bolla
COO
Robert J Jr. Marshall
Robert J Jr. Marshall (Age 59)
CFO
Andrea Sabens
Andrea Sabens (Age 47)
CAO
Sam R Leno
Director
Gerard Ber
Gerard Ber
Director
Heinz Christoph Maeusli
Heinz Christoph Maeusli
Director
Minnie Baylor-Henry
Minnie Baylor-Henry
Director
Gary J Pruden
Gary J Pruden
Director
James H Thrall
Director
Michael P Duffy
Michael P Duffy (Age 65)
SVP
Carol Walker
Carol Walker
SVP
Etienne Montagut
Etienne Montagut (Age 51)
Insider
Daniel Niedzwiecki
Daniel Niedzwiecki (Age 49)
Insider
Paul Blanchfield
Paul Blanchfield (Age 45)
Insider