LNTH Insider Trading

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Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 1.70%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $0.00

Lantheus Insider Trading History Chart

Lantheus Share Price & Price History

^$100.46

+0.30 (1.20%)

As of 10/30/2026 04:00 PM ET

Days: 30 | 90 | 365

Lantheus Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
8/20/2025	Farallon Partners L L C/Ca	Insider	Sell	3,365,000	$56.15	$188,944,750.00	3,477,227
8/20/2025	Rajiv A Patel	Insider	Sell	3,365,000	$56.15	$188,944,750.00	3,477,227
8/19/2025	Farallon Partners L L C/Ca	Insider	Sell	41,000	$55.34	$2,268,940.00	6,842,227
8/19/2025	Rajiv A Patel	Insider	Sell	41,000	$55.34	$2,268,940.00	6,842,227
6/2/2025	Mary Anne Heino	Director	Sell	26,066	$76.83	$2,002,650.78	318,650
3/17/2025	Robert J. Marshall, Jr.	CFO	Sell	10,000	$100.52	$1,005,200.00	113,860
3/13/2025	Mary Anne Heino	Director	Sell	2	$100.13	$200.26	8,618
3/3/2025	Mary Anne Heino	Director	Sell	53,107	$94.35	$5,010,645.45	440,399
1/15/2025	James H. Thrall	Director	Sell	1,000	$94.76	$94,760.00	33,207
8/12/2024	Gerard Ber	Director	Sell	15,500	$96.48	$1,495,440.00	21,221
8/8/2024	Paul Blanchfield	President	Sell	2,000	$96.39	$192,780.00	98,980
8/2/2024	Mary Anne Heino	Director	Sell	10,481	$95.50	$1,000,935.50	454,923
7/15/2024	Andrea Sabens	CAO	Sell	341	$123.15	$41,994.15	62,216
7/10/2024	Gary J. Pruden	Director	Sell	12,530	$95.04	$1,190,851.20	11,978
6/13/2024	Andrea Sabens	CAO	Sell	341	$79.77	$27,201.57	62,557
6/7/2024	Mary Anne Heino	Director	Sell	1	$81.26	$81.26	37,719
5/30/2024	Daniel Niedzwiecki	Insider	Sell	12,873	$79.86	$1,028,037.78	80,244
5/28/2024	Heinz Christoph Maeusli	Director	Sell	18,373	$79.19	$1,454,957.87	23,340
5/13/2024	Andrea Sabens	CAO	Sell	341	$76.89	$26,219.49	62,898
4/15/2024	Andrea Sabens	CAO	Sell	341	$61.24	$20,882.84	63,239
3/6/2024	Lantheus Alpha Therapy, Llc	Major Shareholder	Buy	60,431,039	$0.95	$57,409,487.05	116,773,394
3/4/2024	Mary Anne Heino	Director	Sell	93,863	$65.31	$6,130,192.53	251,643
2/13/2024	Andrea Sabens	CAO	Sell	341	$55.31	$18,860.71	58,403
1/16/2024	Andrea Sabens	CAO	Sell	341	$56.01	$19,099.41	58,744
11/16/2023	Paul Blanchfield	President	Sell	1,500	$67.96	$101,940.00	88,651
11/13/2023	Andrea Sabens	CAO	Sell	341	$63.57	$21,677.37	59,426
11/13/2023	Mary Anne Heino	CEO	Sell	11,780	$63.72	$750,621.60	317,687

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

Lantheus Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
10/31/2026	Covestor Ltd	706	$70K	0.0%	+111.4%	0.001%
10/31/2026	Ascent Group LLC	3,990	$0.40M	0.0%	-2.7%	0.006%
10/30/2026	Oregon Public Employees Retirement Fund	13,559	$1.35M	0.0%	+0.7%	0.021%
10/29/2026	ProShare Advisors LLC	14,317	$1.43M	0.0%	+28.7%	0.022%
10/29/2026	Vise Technologies Inc.	8,196	$0.82M	0.0%	+80.8%	0.013%
10/28/2026	VIRGINIA RETIREMENT SYSTEMS ET Al	7,233	$0.72M	0.0%	-19.9%	0.011%
10/27/2026	WD Rutherford LLC	8,368	$0.83M	0.3%	+88.0%	0.013%
10/26/2026	Oppenheimer & Co. Inc.	2,047	$0.20M	0.0%	-25.8%	0.003%
10/26/2026	Peterson Wealth Services	10,549	$1.05M	0.2%	+13.6%	0.016%
10/23/2026	Fifth Third Wealth Advisors LLC	2,495	$0.25M	0.0%	+16.2%	0.004%
10/23/2026	Sterling Capital Management LLC	2,156	$0.22M	0.0%	-52.4%	0.003%
10/22/2026	Yousif Capital Management LLC	17,428	$1.74M	0.0%	-6.2%	0.027%
10/22/2026	Isthmus Partners LLC	10,737	$1.07M	0.1%	-75.3%	0.016%
10/22/2026	Crescent Grove Advisors LLC	6,907	$0.69M	0.1%	-53.7%	0.011%
10/21/2026	Nisa Investment Advisors LLC	8,300	$0.83M	0.0%	+15.8%	0.013%
10/17/2026	USA Financial Formulas	407	$41K	0.0%	N/A	0.001%
10/16/2026	Milestone Asset Management LLC	13,606	$1.35M	0.2%	-1.8%	0.021%
10/15/2026	State of Alaska Department of Revenue	9,380	$0.93M	0.0%	+47.0%	0.014%
10/14/2026	Focus Financial Network Inc.	2,054	$0.20M	0.0%	-8.4%	0.003%
10/14/2026	Ulland Investment Advisors LLC	4,075	$0.41M	0.3%	-2.4%	0.006%
10/10/2026	Reinhart Partners LLC.	1,207,900	$120.22M	2.9%	-24.5%	1.851%
10/9/2026	Diversified Management Inc.	3,770	$0.38M	0.1%	N/A	0.006%
10/9/2026	GAMMA Investing LLC	3,457	$0.34M	0.0%	+3.3%	0.005%
10/8/2026	Farther Finance Advisors LLC	555	$55K	0.0%	+122.9%	0.001%
10/6/2026	Moody National Bank Trust Division	11,281	$1.12M	0.1%	-2.5%	0.017%
9/9/2026	Sequoia Financial Advisors LLC	3,794	$0.42M	0.0%	-3.1%	0.006%
9/9/2026	Tidal Investments LLC	22,466	$2.49M	0.0%	-28.8%	0.034%
9/9/2026	Integrated Wealth Concepts LLC	18,709	$2.08M	0.0%	+6.7%	0.029%
9/9/2026	Baird Financial Group Inc.	29,356	$3.26M	0.0%	+25.8%	0.045%
9/8/2026	Arizona State Retirement System	17,964	$1.99M	0.0%	-1.4%	0.028%
9/8/2026	Carmignac Gestion	1,340,100	$148.67M	1.9%	+0.9%	2.053%
8/27/2026	Corient Private Wealth LP	2,612	$0.29M	0.0%	N/A	0.004%
8/26/2026	HighTower Advisors LLC	5,130	$0.57M	0.0%	-39.7%	0.008%
8/25/2026	VIRGINIA RETIREMENT SYSTEMS ET Al	9,033	$1M	0.0%	N/A	0.014%
8/22/2026	AlphaGrep UK Ltd	3,674	$0.41M	0.1%	N/A	0.006%
8/22/2026	Three Seasons Wealth LLC	15,333	$1.70M	0.2%	+13.6%	0.023%
8/22/2026	denkapparat Operations GmbH	9,416	$1.05M	0.3%	N/A	0.014%
8/21/2026	SkyOak Wealth LLC	44,419	$4.93M	0.8%	-30.9%	0.068%
8/20/2026	Cookson Peirce & Co. Inc.	24,060	$2.67M	0.1%	N/A	0.037%
8/20/2026	Penn Capital Management Company LLC	153,877	$17.09M	1.1%	N/A	0.236%
8/19/2026	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	482,743	$53.56M	0.0%	-0.8%	0.740%
8/19/2026	Hsbc Holdings PLC	20,539	$2.27M	0.0%	N/A	0.031%
8/18/2026	Empowered Funds LLC	2,434	$0.27M	0.0%	N/A	0.004%
8/18/2026	Equitable Holdings Inc.	2,202	$0.24M	0.0%	N/A	0.003%
8/18/2026	Centaurus Financial Inc.	6,015	$0.67M	0.0%	N/A	0.009%
8/18/2026	Formula Growth Ltd.	25,131	$2.79M	1.0%	N/A	0.039%
8/18/2026	Jefferies Financial Group Inc.	8,234	$0.91M	0.0%	N/A	0.013%
8/18/2026	Public Employees Retirement System of Ohio	2,185	$0.24M	0.0%	N/A	0.003%
8/17/2026	Corient Private Wealth LP	2,736	$0.30M	0.0%	N/A	0.004%
8/15/2026	Summit Street Capital Management LLC	400,699	$44.45M	6.2%	N/A	0.614%
8/15/2026	Jupiter Topco LLC	5,188,416	$575.63M	0.2%	N/A	7.949%
8/15/2026	ABS Investment Management LLC	111	$232.97M	0.2%	N/A	0.000%
8/14/2026	Hsbc Holdings PLC	20,539	$2.27M	0.0%	N/A	0.031%
8/14/2026	EFG International AG	900	$100K	0.0%	N/A	0.001%
8/14/2026	Expect Equity LLC	32,073	$3.56M	2.3%	N/A	0.049%
8/14/2026	Legal & General Group Plc	88,207	$9.79M	0.0%	N/A	0.135%
8/14/2026	The Manufacturers Life Insurance Company	61,716	$6.85M	0.0%	N/A	0.095%
8/14/2026	Algert Global LLC	2,250	$0.25M	0.0%	N/A	0.003%
8/13/2026	Portland Investment Counsel Inc.	18,000	$2M	0.6%	N/A	0.028%
8/13/2026	Sanctuary Advisors LLC	3,519	$0.39M	0.0%	N/A	0.005%
8/12/2026	Evolve Private Wealth LLC	3,944	$0.44M	0.0%	N/A	0.006%
8/12/2026	William Blair Investment Management LLC	232,597	$25.80M	0.1%	N/A	0.356%
8/12/2026	Heron Bay Capital Management	39,362	$4.37M	0.4%	N/A	0.060%
8/11/2026	Keating Financial Advisory Services Inc.	3,639	$0.40M	0.1%	N/A	0.006%
8/11/2026	Allworth Financial LP	440	$49K	0.0%	N/A	0.001%
8/11/2026	Vise Technologies Inc.	4,532	$0.50M	0.0%	N/A	0.007%
8/10/2026	Great Lakes Advisors LLC	36,680	$4.07M	0.0%	N/A	0.056%
8/10/2026	Danske Bank A S	2,965	$0.33M	0.0%	N/A	0.005%
8/10/2026	Danske Bank A S	57,791	$6.41M	0.0%	N/A	0.089%
8/7/2026	Deutsche Bank AG	248,743	$27.60M	0.0%	N/A	0.382%
8/7/2026	Perigon Wealth Management LLC	3,524	$0.39M	0.0%	N/A	0.005%
8/7/2026	Rice Hall James & Associates LLC	43,735	$4.85M	0.2%	N/A	0.067%
8/7/2026	Persistent Asset Partners Ltd	3,903	$0.43M	0.1%	N/A	0.006%
8/7/2026	Chase Investment Counsel Corp	20,000	$2.22M	0.5%	N/A	0.031%
8/7/2026	N.E.W. Advisory Services LLC	1,670	$0.19M	0.0%	N/A	0.003%
8/6/2026	Global Retirement Partners LLC	643	$71K	0.0%	N/A	0.001%
8/6/2026	State of Wyoming	3,305	$0.37M	0.0%	N/A	0.005%
8/6/2026	GSA Capital Partners LLP	3,121	$0.35M	0.0%	N/A	0.005%
7/10/2026	Handelsbanken Fonder AB	23,600	$2.62M	0.0%	-14.5%	0.036%
7/9/2026	Focus Financial Network Inc.	2,242	$0.25M	0.0%	N/A	0.003%
7/8/2026	Reinhart Partners LLC.	1,599,379	$177.44M	4.1%	+2.2%	2.456%
7/8/2026	Assenagon Asset Management S.A.	714,980	$79.32M	0.1%	+440.3%	1.098%
7/7/2026	GAMMA Investing LLC	3,348	$0.37M	0.0%	+6.4%	0.005%
7/2/2026	Versant Capital Management Inc	588	$65K	0.0%	+33.0%	0.001%
6/18/2026	Pacer Advisors Inc.	7,704	$0.58M	0.0%	-97.0%	0.012%
6/16/2026	Empowered Funds LLC	11,979	$0.91M	0.0%	N/A	0.018%
6/15/2026	Carmignac Gestion	1,328,000	$100.73M	1.5%	+18.4%	2.040%
6/12/2026	Defilade Capital Management L.P.	249,401	$18.92M	2.7%	N/A	0.383%
6/3/2026	Parallel Advisors LLC	1,060	$80K	0.0%	+95.9%	0.002%
5/27/2026	Allen Capital Group LLC	3,290	$0.25M	0.0%	N/A	0.005%
5/19/2026	Western Wealth Management LLC	335	$25K	0.0%	N/A	0.001%
5/19/2026	Janus Henderson Group PLC	4,774,841	$362.17M	0.2%	-16.3%	7.333%
5/19/2026	Centaurus Financial Inc.	6,621	$0.50M	0.0%	-7.9%	0.010%
5/18/2026	EverSource Wealth Advisors LLC	1,396	$0.11M	0.0%	+157.1%	0.002%
5/18/2026	California State Teachers Retirement System	78,207	$5.93M	0.0%	+22.3%	0.120%
5/18/2026	Empowered Funds LLC	11,979	$0.91M	0.0%	N/A	0.018%
5/16/2026	The Manufacturers Life Insurance Company	69,181	$5.25M	0.0%	+4.4%	0.106%
5/16/2026	Quantinno Capital Management LP	9,772	$0.74M	0.0%	+58.4%	0.015%
5/15/2026	Rice Hall James & Associates LLC	46,850	$3.55M	0.2%	+4.9%	0.072%
5/15/2026	Epoch Investment Partners Inc.	649,751	$49.28M	0.3%	+59.4%	0.998%

Data available starting January 2016

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.

Today's Range

Now: $100.46

$100.24

$100.50

50 Day Range

MA: $100.26

$99.51

$100.98

52 Week Range

Now: $100.46

$50.15

$111.86

Volume

476,256 shs

Average Volume

1,013,600 shs

Market Capitalization

$6.56 billion

P/E Ratio

24.27

Dividend Yield

N/A

Beta

N/A

Who are the company insiders with the largest holdings of Lantheus?: Lantheus' top insider investors include:
Lantheus Alpha Therapy, Llc (Major Shareholder)
Farallon Partners L L C/Ca (Insider)
Rajiv A Patel (Insider)
Mary Anne Heino (CEO)
Mary Anne Heino (Director)
Michael P Duffy (Insider)
Michael P Duffy (SVP)
Robert J Jr Marshall (CFO)
Cesare Orlandi (Insider)
Paul Blanchfield (President)
Learn More about top insider investors at Lantheus.
Who are the major institutional investors of Lantheus?: Lantheus' top institutional investors include:
Reinhart Partners LLC. — 1.85%
Yousif Capital Management LLC — 0.03%
ProShare Advisors LLC — 0.02%
Milestone Asset Management LLC — 0.02%
Oregon Public Employees Retirement Fund — 0.02%
Moody National Bank Trust Division — 0.02%
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:
Reinhart Partners LLC.
Isthmus Partners LLC
Crescent Grove Advisors LLC
Sterling Capital Management LLC
VIRGINIA RETIREMENT SYSTEMS ET Al
Yousif Capital Management LLC
Oppenheimer & Co. Inc.
Moody National Bank Trust Division
Which major investors are buying Lantheus stock?: Within the previous quarter, LNTH stock was acquired by institutional investors including:
WD Rutherford LLC
Diversified Management Inc.
Vise Technologies Inc.
ProShare Advisors LLC
State of Alaska Department of Revenue
Peterson Wealth Services
Nisa Investment Advisors LLC
USA Financial Formulas