LNTH Insider Trading

Insider Trading Chart
Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 1.50%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $390,540,836.49

Lantheus Insider Trading History Chart

Lantheus Share Price & Price History

^$61.87

▲ +2.1 (3.51%)

As of 12/4/2025 05:00 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
9/15/2023	Daniel Niedzwiecki	Insider	Sell	2,846	$66.43	$189,059.78	66,295
8/21/2023	Paul Blanchfield	President	Sell	408	$66.10	$26,968.80	90,067
8/21/2023	Paul Blanchfield	President	Sell	408	$66.10	$26,968.80	90,067
8/18/2023	Paul Blanchfield	President	Sell	1,500	$65.19	$97,785.00	90,475
8/11/2023	Daniel Niedzwiecki	Insider	Sell	4,297	$67.93	$291,895.21	66,295
8/11/2023	Mary Anne Heino	CEO	Sell	10,950	$68.58	$750,951.00	329,467
7/19/2023	Andrea Sabens	CAO	Sell	1,752	$90.87	$159,204.24	59,767
6/2/2023	Minnie Baylor-Henry	Director	Sell	6	$86.22	$517.32	16
5/18/2023	Paul Blanchfield	President	Sell	1,500	$97.93	$146,895.00	92,743
5/15/2023	Andrea Sabens	CAO	Sell	385	$99.36	$38,253.60	61,519
5/15/2023	Robert J. Marshall, Jr.	CFO	Sell	10,000	$99.36	$993,600.00	118,298
5/11/2023	Daniel Niedzwiecki	Insider	Sell	6,113	$98.82	$604,086.66	72,058
4/17/2023	Andrea Sabens	CAO	Sell	386	$88.67	$34,226.62	61,904
4/17/2023	Etienne Montagut	Insider	Sell	2,118	$88.67	$187,803.06	67,254
4/3/2023	Etienne Montagut	Insider	Sell	3,684	$82.09	$302,419.56	69,372
3/27/2023	Brian A. Markison	Director	Sell	13,290	$81.13	$1,078,217.70	19,318
3/27/2023	Etienne Montagut	Insider	Sell	14,528	$81.13	$1,178,656.64	73,056
3/27/2023	Mary Anne Heino	CEO	Sell	44,484	$80.77	$3,592,972.68	419,397
3/15/2023	Andrea Sabens	CAO	Sell	386	$71.58	$27,629.88	62,290
3/15/2023	Robert J. Marshall, Jr.	CFO	Sell	5,000	$71.58	$357,900.00	128,298
3/8/2023	Mary Anne Heino	CEO	Sell	10,064	$74.70	$751,780.80	719,397
3/6/2023	Andrea Sabens	CAO	Sell	7,705	$72.56	$559,074.80	63,626
3/6/2023	Etienne Montagut	Insider	Sell	14,179	$72.56	$1,028,828.24	90,825
3/6/2023	Mary Anne Heino	CEO	Sell	12,189	$73.24	$892,722.36	729,461
3/6/2023	Paul Blanchfield	COO	Sell	5,250	$72.56	$380,940.00	89,101
3/6/2023	Robert J. Marshall, Jr.	CFO	Sell	20,587	$72.56	$1,493,792.72	138,152
3/3/2023	Mary Anne Heino	CEO	Sell	82,055	$73.00	$5,990,015.00	741,650
1/17/2023	Andrea Sabens	CAO	Sell	386	$52.97	$20,446.42	60,846
12/15/2022	Andrea Sabens	CAO	Sell	386	$53.75	$20,747.50	61,232

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
12/2/2025	IFP Advisors Inc	2,211	$0.11M	0.0%	+123.6%	0.003%
12/2/2025	Swiss Life Asset Management Ltd	3,907	$0.20M	0.0%	N/A	0.006%
11/21/2025	CIBC Bancorp USA Inc.	7,271	$0.37M	0.0%	N/A	0.011%
11/20/2025	Centaurus Financial Inc.	6,671	$0.34M	0.0%	+141.5%	0.010%
11/19/2025	Danske Bank A S	7,565	$0.39M	0.0%	N/A	0.011%
11/19/2025	Caitong International Asset Management Co. Ltd	1,071	$55K	0.0%	N/A	0.002%
11/18/2025	Advisory Services Network LLC	2,347	$0.12M	0.0%	N/A	0.004%
11/17/2025	Jacobs Levy Equity Management Inc.	136,924	$7.02M	0.0%	N/A	0.206%
11/17/2025	Woodline Partners LP	42,382	$2.17M	0.0%	-52.1%	0.064%
11/17/2025	XTX Topco Ltd	11,188	$0.57M	0.0%	+16.8%	0.017%
11/17/2025	Velan Capital Investment Management LP	73,545	$3.77M	3.5%	N/A	0.111%
11/17/2025	Verition Fund Management LLC	162,970	$8.36M	0.0%	+419.3%	0.246%
11/17/2025	Vestal Point Capital LP	170,000	$8.72M	0.4%	+240.0%	0.256%
11/17/2025	Sarissa Capital Management LP	181,450	$9.31M	5.2%	+88.5%	0.274%
11/17/2025	Scientech Research LLC	15,840	$0.81M	0.3%	N/A	0.024%
11/17/2025	Private Capital Management LLC	560,664	$28.76M	2.6%	-0.7%	0.845%
11/17/2025	New Vernon Capital Holdings II LLC	2,871	$0.15M	0.1%	N/A	0.004%
11/17/2025	Numerai GP LLC	12,861	$0.66M	0.1%	N/A	0.019%
11/17/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	32,974	$1.69M	0.0%	-12.3%	0.050%
11/17/2025	Moore Capital Management LP	19,944	$1.02M	0.0%	N/A	0.030%
11/17/2025	Lido Advisors LLC	67,158	$3.45M	0.0%	-0.7%	0.101%
11/17/2025	Hilltop Holdings Inc.	4,604	$0.24M	0.0%	N/A	0.007%
11/17/2025	Gotham Asset Management LLC	39,938	$2.05M	0.0%	+267.5%	0.060%
11/17/2025	Farallon Capital Management LLC	3,477,227	$178.35M	0.7%	-48.3%	5.244%
11/17/2025	Focus Partners Wealth	80,155	$4.12M	0.0%	-1.0%	0.121%
11/17/2025	Brevan Howard Capital Management LP	39,747	$2.04M	0.0%	+496.5%	0.060%
11/17/2025	California Public Employees Retirement System	120,627	$6.19M	0.0%	+1.2%	0.182%
11/17/2025	Bank of America Corp DE	517,812	$26.56M	0.0%	-72.4%	0.781%
11/17/2025	Boothbay Fund Management LLC	7,940	$0.41M	0.0%	N/A	0.012%
11/17/2025	Alliancebernstein L.P.	138,784	$7.12M	0.0%	-24.4%	0.209%
11/17/2025	Ameriprise Financial Inc.	249,864	$12.82M	0.0%	+14.0%	0.377%
11/14/2025	Creative Planning	27,725	$1.42M	0.0%	+20.4%	0.042%
11/14/2025	Raymond James Financial Inc.	113,367	$5.82M	0.0%	-75.9%	0.171%
11/14/2025	Virtu Financial LLC	21,519	$1.10M	0.1%	N/A	0.032%
11/14/2025	Amundi	56,944	$3M	0.0%	-97.0%	0.086%
11/14/2025	Freestone Grove Partners LP	14,438	$0.74M	0.0%	N/A	0.022%
11/14/2025	Hotchkis & Wiley Capital Management LLC	223,096	$11.44M	0.0%	N/A	0.336%
11/14/2025	Logan Capital Management Inc.	11,228	$0.58M	0.0%	-15.8%	0.017%
11/14/2025	UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC	448,452	$23M	0.0%	+73.4%	0.676%
11/14/2025	Two Sigma Investments LP	95,921	$4.92M	0.0%	N/A	0.145%
11/14/2025	Vident Advisory LLC	44,533	$2.28M	0.0%	-36.0%	0.067%
11/14/2025	Squarepoint Ops LLC	6,623	$0.34M	0.0%	N/A	0.010%
11/14/2025	Sirios Capital Management L P	9,074	$0.47M	0.1%	-46.5%	0.014%
11/14/2025	iSAM Funds UK Ltd	4,366	$0.22M	0.0%	N/A	0.007%
11/14/2025	Prudential PLC	20,922	$1.07M	0.0%	+28.2%	0.032%
11/14/2025	Comerica Bank	18,289	$0.94M	0.0%	-93.6%	0.028%
11/14/2025	Portland Investment Counsel Inc.	18,000	$0.92M	0.3%	+38.5%	0.027%
11/14/2025	Portolan Capital Management LLC	297,208	$15.24M	0.8%	+16.8%	0.448%
11/14/2025	FORA Capital LLC	13,647	$0.70M	0.1%	N/A	0.021%
11/13/2025	Epoch Investment Partners Inc.	455,855	$23.38M	0.1%	+33.9%	0.687%
11/13/2025	Entropy Technologies LP	14,189	$0.73M	0.1%	N/A	0.021%
11/13/2025	Ulland Investment Advisors LLC	6,032	$0.31M	0.2%	+21.9%	0.009%
11/13/2025	Quantitative Investment Management LLC	4,612	$0.24M	0.0%	N/A	0.007%
11/13/2025	Invesco Ltd.	732,957	$37.59M	0.0%	-83.5%	1.105%
11/13/2025	BNP Paribas Financial Markets	659,304	$33.82M	0.0%	-97.0%	0.994%
11/13/2025	Mackenzie Financial Corp	501,593	$25.73M	0.0%	+0.6%	0.756%
11/13/2025	Franklin Resources Inc.	71,193	$3.65M	0.0%	-98.4%	0.107%
11/13/2025	Quadrant Capital Group LLC	6,517	$0.33M	0.0%	-3.0%	0.010%
11/13/2025	Van ECK Associates Corp	66,223	$3.40M	0.0%	-4.6%	0.100%
11/13/2025	Legal & General Group Plc	142,317	$7.30M	0.0%	-6.7%	0.215%
11/13/2025	Vestcor Inc	18,039	$0.93M	0.0%	-7.8%	0.027%
11/13/2025	Swiss National Bank	134,154	$6.88M	0.0%	+2.6%	0.202%
11/13/2025	WINTON GROUP Ltd	65,125	$3.34M	0.1%	+350.8%	0.098%
11/13/2025	Natixis Advisors LLC	15,805	$0.81M	0.0%	-35.1%	0.024%
11/13/2025	First Trust Advisors LP	17,106	$0.88M	0.0%	-75.5%	0.026%
11/12/2025	Gabelli Funds LLC	54,100	$2.78M	0.0%	-2.5%	0.082%
11/12/2025	Heron Bay Capital Management	16,792	$0.86M	0.2%	N/A	0.025%
11/12/2025	Barclays PLC	162,731	$8.35M	0.0%	-81.7%	0.245%
11/12/2025	Orion Porfolio Solutions LLC	9,095	$0.47M	0.0%	-9.1%	0.014%
11/12/2025	Dimensional Fund Advisors LP	1,371,089	$70.32M	0.0%	-0.9%	2.068%
11/12/2025	Cresset Asset Management LLC	10,717	$0.55M	0.0%	-9.8%	0.016%
11/12/2025	South Dakota Investment Council	20,959	$1.08M	0.0%	-6.7%	0.032%
11/12/2025	Teachers Retirement System of The State of Kentucky	20,321	$1.04M	0.0%	-49.0%	0.031%
11/12/2025	Victory Capital Management Inc.	140,335	$7.20M	0.0%	+3.4%	0.212%
11/12/2025	CI Investments Inc.	855	$44K	0.0%	-29.5%	0.001%
11/12/2025	111 Capital	3,913	$0.20M	0.0%	N/A	0.006%
11/12/2025	Elo Mutual Pension Insurance Co	18,370	$0.94M	0.0%	N/A	0.028%
11/12/2025	William Blair Investment Management LLC	574,681	$29.48M	0.1%	+46.7%	0.867%
11/12/2025	New Age Alpha Advisors LLC	14,987	$0.77M	0.0%	-2.5%	0.023%
11/12/2025	American Century Companies Inc.	721,422	$37M	0.0%	-32.1%	1.088%
11/12/2025	Quantbot Technologies LP	36,014	$1.85M	0.1%	N/A	0.054%
11/12/2025	Artisan Partners Limited Partnership	403,994	$20.72M	0.0%	-3.3%	0.609%
11/12/2025	Intech Investment Management LLC	63,372	$3.25M	0.0%	-34.7%	0.096%
11/12/2025	US Bancorp DE	947	$49K	0.0%	-34.7%	0.001%
11/12/2025	Fox Run Management L.L.C.	5,047	$0.26M	0.0%	-36.8%	0.008%
11/10/2025	TD Asset Management Inc	790,950	$40.57M	0.0%	+25.0%	1.163%
11/10/2025	Dana Investment Advisors Inc.	6,044	$0.31M	0.0%	-69.7%	0.009%
11/10/2025	Clark Estates Inc. NY	42,000	$2.15M	0.5%	N/A	0.062%
11/10/2025	Equitable Trust Co.	12,865	$0.66M	0.0%	-3.7%	0.019%
11/10/2025	Ameritas Investment Partners Inc.	18,445	$0.95M	0.0%	-9.3%	0.027%
11/10/2025	Aurora Investment Counsel	16,378	$0.84M	0.4%	-10.9%	0.024%
11/10/2025	Premier Fund Managers Ltd	6,861	$0.35M	0.0%	-26.3%	0.010%
11/10/2025	Isthmus Partners LLC	24,140	$1.24M	0.3%	N/A	0.036%
11/7/2025	First National Bank of Omaha	9,299	$0.48M	0.0%	N/A	0.014%
11/7/2025	Vanguard Group Inc.	6,952,418	$356.59M	0.0%	+1.7%	10.225%
11/7/2025	Northwestern Mutual Investment Management Company LLC	15,155	$0.78M	0.0%	-1.9%	0.022%
11/7/2025	State of New Jersey Common Pension Fund D	35,954	$1.84M	0.0%	+42.7%	0.053%
11/7/2025	PNC Financial Services Group Inc.	5,092	$0.26M	0.0%	-53.7%	0.007%
11/7/2025	Shell Asset Management Co.	769	$39K	0.0%	-58.8%	0.001%
11/6/2025	Assetmark Inc.	118,503	$6.08M	0.0%	+20.1%	0.174%

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: $61.87

$59.14

$62.60

50 Day Range

MA: $55.24

$50.61

$61.87

52 Week Range

Now: $61.87

$47.25

$111.29

Volume

1,320,580 shs

Average Volume

1,121,037 shs

Market Capitalization

$4.10 billion

P/E Ratio

26.00

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 (Director)
Robert J Jr Marshall (CFO)
Paul Blanchfield (President)
Daniel Niedzwiecki (Insider)
Andrea Sabens (CAO)
James H Thrall (Director)
Heinz Christoph Maeusli (Director)
Gerard Ber (Director)
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:
Vanguard Group Inc. — 10.23%
Farallon Capital Management LLC — 5.24%
Dimensional Fund Advisors LP — 2.07%
Reinhart Partners LLC. — 1.98%
Assenagon Asset Management S.A. — 1.88%
TD Asset Management Inc — 1.16%
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:
BNP Paribas Financial Markets
Franklin Resources Inc.
Invesco Ltd.
Farallon Capital Management LLC
Amundi
Bank of America Corp DE
Barclays PLC
Raymond James Financial Inc.
In the last year, company insiders that have sold Lantheus company stock include:
Lantheus Alpha Therapy, Llc (Major Shareholder)
Farallon Partners L L C/Ca (Insider)
Rajiv A Patel (Insider)
Mary Anne Heino (Director)
Robert J Jr Marshall (CFO)
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:
Assenagon Asset Management S.A.
Polaris Capital Management LLC
Hotchkis & Wiley Capital Management LLC
UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC
William Blair Investment Management LLC
TD Asset Management Inc
Jacobs Levy Equity Management Inc.
Verition Fund Management LLC