Lantheus Holdings, Inc. (LNTH) — Institutional Holders, Q2 2026

501 institutional investment managers reported a LNTH position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $9.1B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← LNTH stock profile

LNTH in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

164

Trimmed

149

Sold out

Biggest buyers

BlackRockAdded · +2,464,449 sh+$273.4M
CITADEL ADVISORSAdded · +1,091,936 sh+$121.1M
AMERICAN CENTURY COMPANIESAdded · +1,035,441 sh+$114.9M
PRICE T ROWE ASSOCIATESAdded · +983,622 sh+$109.1M
Assenagon Asset Management S.A.Added · +582,661 sh+$64.6M

Biggest sellers

FMRTrimmed · -896,482 sh-$99.5M
MACKENZIE FINANCIALSold out · -714,561 sh-$79.3M
HEALTHCARE OF ONTARIO PENSION PLAN FUNDSold out · -598,857 sh-$66.4M
TD ASSET MANAGEMENTTrimmed · -479,782 sh-$53.2M
Longaeva Partners L.P.Trimmed · -354,894 sh-$39.4M

LNTH 13F holders ranked 1–100 of 501

Institutional investors reporting a position in Lantheus Holdings, Inc. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	BlackRock#1 · 19,747,642 sh	19,747,642	$948.1M	0.01%	+14.3%
2	FARALLON CAPITAL MANAGEMENT#2 · 5,583,479 sh	5,583,479	$619.4M	2.86%	0.0%
3	Jupiter Topco#3 · 5,188,416 sh	5,188,416	$575.6M	0.23%	—
4	FMR#4 · 10,236,971 sh	10,236,971	$439.7M	0.02%	-8.1%
5	VANGUARD PORTFOLIO MANAGEMENT#5 · 3,238,471 sh	3,238,471	$359.3M	0.02%	+2.0%
6	VANGUARD CAPITAL MANAGEMENT#6 · 2,932,214 sh	2,932,214	$325.3M	<0.01%	+0.6%
7	AMERICAN CENTURY COMPANIES#7 · 2,816,547 sh	2,816,547	$312.5M	0.14%	+58.1%
8	STATE STREET#8 · 17,200,696 sh	17,200,696	$298.9M	<0.01%	+18.0%
9	PRICE T ROWE ASSOCIATES#9 · 1,903,354 sh	1,903,354	$211.2M	0.02%	+106.9%
10	GEODE CAPITAL MANAGEMENT#10 · 1,841,367 sh	1,841,367	$204.3M	0.01%	+4.3%
11	MORGAN STANLEY#11 · 6,914,303 sh	6,914,303	$199.0M	0.01%	+4.9%
12	REINHART PARTNERS#12 · 1,599,379 sh	1,599,379	$177.4M	—	+2.2%
13	DIMENSIONAL FUND ADVISORS#13 · 1,466,260 sh	1,466,260	$162.7M	0.03%	+6.3%
14	CITADEL ADVISORS#14 · 1,376,480 sh	1,376,480	$152.7M	0.02%	+383.7%
15	Carmignac Gestion#15 · 1,340,100 sh	1,340,100	$148.7M	1.93%	+0.9%
16	Swedbank AB#16 · 1,201,243 sh	1,201,243	$133.3M	—	-2.2%
17	WELLINGTON MANAGEMENT GROUP LLP#17 · 13,392,063 sh	13,392,063	$130.5M	0.02%	-17.4%
18	BROWN ADVISORY#18 · 915,683 sh	915,683	$101.6M	0.16%	+33.2%
19	BRIGADE CAPITAL MANAGEMENT#19 · 43,745,745 sh	43,745,745	$98.9M	18.52%	-10.9%
20	UBS Group AG#20 · 882,494 sh	882,494	$92.8M	0.01%	-3.4%
21	NORTHERN#21 · 818,394 sh	818,394	$90.8M	0.01%	+1.7%
22	GOLDMAN SACHS GROUP#22 · 927,096 sh	927,096	$90.5M	<0.01%	+66.9%
23	MARSHALL WACE, LLP#23 · 773,978 sh	773,978	$85.9M	0.07%	+26.5%
24	DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C)#24 · 752,999 sh	752,999	$83.5M	0.87%	-9.1%
25	AMERIPRISE FINANCIAL#25 · 10,619,298 sh	10,619,298	$83.2M	0.02%	+3.4%
26	JPMORGAN CHASE#26 · 4,945,229 sh	4,945,229	$83.1M	<0.01%	+132.3%
27	MILLENNIUM MANAGEMENT#27 · 31,336,399 sh	31,336,399	$82.6M	0.03%	+1289.5%
28	Assenagon Asset Management S.A.#28 · 714,980 sh	714,980	$79.3M	—	+440.3%
29	JACOBS LEVY EQUITY MANAGEMENT#29 · 699,583 sh	699,583	$77.6M	0.28%	+21.1%
30	NOMURA ASSET MANAGEMENT INTERNATIONAL#30 · 1,727,042 sh	1,727,042	$76.0M	0.11%	-9.6%
31	TENOR CAPITAL MANAGEMENT , L.P.#31 · 51,835,000 sh	51,835,000	$75.9M	1.07%	+20.6%
32	MACKAY SHIELDS#32 · 50,863,000 sh	50,863,000	$74.0M	—	-0.1%
33	CHARLES SCHWAB INVESTMENT MANAGEMENT#33 · 665,457 sh	665,457	$73.8M	<0.01%	+1.2%
34	TD ASSET MANAGEMENT#34 · 653,736 sh	653,736	$72.5M	0.06%	-42.3%
35	Point72 Asset Management, L.P.#35 · 629,806 sh	629,806	$69.9M	0.08%	-35.4%
36	NORGES BANK#36 · 586,845 sh	586,845	$65.1M	<0.01%	—
37	Holocene Advisors#37 · 546,961 sh	546,961	$60.7M	0.14%	New
38	DeepCurrents Investment Group#38 · 41,000,000 sh	41,000,000	$60.1M	1.82%	+34.4%
39	Boston Partners#39 · 500,622 sh	500,622	$55.1M	0.05%	+6.4%
40	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#40 · 482,743 sh	482,743	$53.6M	<0.01%	-0.8%
41	VICTORY CAPITAL MANAGEMENT#41 · 470,051 sh	470,051	$52.1M	0.03%	+74.4%
42	VANGUARD FIDUCIARY#42 · 466,076 sh	466,076	$51.7M	0.01%	+1.5%
43	BANK OF AMERICA#43 · 9,986,268 sh	9,986,268	$50.6M	<0.01%	-27.6%
44	Bank of New York Mellon#44 · 641,831 sh	641,831	$49.3M	<0.01%	-3.3%
45	Polaris Capital Management#45 · 424,500 sh	424,500	$47.1M	—	-31.2%
46	READYSTATE ASSET MANAGEMENT#46 · 32,000,000 sh	32,000,000	$46.6M	0.03%	0.0%
47	M&G Plc#47 · 30,447,000 sh	30,447,000	$44.8M	0.22%	+0.9%
48	Summit Street Capital Management#48 · 400,699 sh	400,699	$44.5M	6.24%	-3.6%
49	CAMDEN ASSET MANAGEMENT L P#49 · 29,953,000 sh	29,953,000	$43.4M	1.27%	-21.0%
50	Epoch Investment Partners#50 · 386,993 sh	386,993	$42.9M	0.24%	-40.4%
51	VOYA INVESTMENT MANAGEMENT#51 · 370,571 sh	370,571	$41.1M	0.04%	+10.0%
52	Private Capital Management#52 · 358,224 sh	358,224	$39.7M	3.50%	+0.2%
53	BNP PARIBAS FINANCIAL MARKETS#53 · 300,967 sh	300,967	$33.4M	0.01%	-95.7%
54	Portolan Capital Management#54 · 288,691 sh	288,691	$32.0M	1.20%	-30.8%
55	BALYASNY ASSET MANAGEMENT L.P.#55 · 277,821 sh	277,821	$30.8M	0.04%	-92.2%
56	CITIGROUP#56 · 6,761,692 sh	6,761,692	$30.6M	0.01%	+23.7%
57	SILVERCREST ASSET MANAGEMENT GROUP#57 · 270,710 sh	270,710	$30.0M	0.20%	-7.5%
58	AQR CAPITAL MANAGEMENT#58 · 261,250 sh	261,250	$28.6M	0.01%	+126.0%
59	Invesco Ltd.#59 · 1,484,745 sh	1,484,745	$27.9M	<0.01%	+309.5%
60	DEUTSCHE BANK AG\#60 · 248,743 sh	248,743	$27.6M	<0.01%	+5.0%
61	ADAGE CAPITAL PARTNERS GP, L.L.C.#61 · 246,755 sh	246,755	$27.4M	0.04%	-28.8%
62	Ovata Capital Management Ltd#62 · 18,500,000 sh	18,500,000	$27.0M	2.03%	New
63	PRINCIPAL FINANCIAL GROUP#63 · 235,768 sh	235,768	$26.2M	0.01%	+4.5%
64	RAYMOND JAMES FINANCIAL#64 · 234,788 sh	234,788	$26.0M	<0.01%	+152.3%
65	WILLIAM BLAIR INVESTMENT MANAGEMENT#65 · 232,597 sh	232,597	$25.8M	0.08%	-41.8%
66	WOLVERINE ASSET MANAGEMENT#66 · 15,138,000 sh	15,138,000	$22.1M	0.19%	-67.4%
67	Calamos Advisors#67 · 15,064,000 sh	15,064,000	$22.0M	0.07%	+0.8%
68	RHUMBLINE ADVISERS#68 · 197,060 sh	197,060	$21.9M	0.02%	+1.3%
69	ADVENT CAPITAL MANAGEMENT#69 · 14,700,000 sh	14,700,000	$21.4M	0.48%	-63.2%
70	Integral Health Asset Management#70 · 190,000 sh	190,000	$21.1M	0.83%	+52.0%
71	WELLS FARGO & COMPANY#71 · 1,686,526 sh	1,686,526	$19.6M	<0.01%	+1.1%
72	STATE OF WISCONSIN INVESTMENT BOARD#72 · 4,115,962 sh	4,115,962	$18.7M	0.04%	+31.7%
73	Sarissa Capital Management#73 · 166,919 sh	166,919	$18.5M	10.41%	0.0%
74	Squarepoint Ops#74 · 12,500 sh	12,500	$18.2M	0.02%	New
75	Nuveen#75 · 162,208 sh	162,208	$18.0M	<0.01%	-97.9%
76	Retirement Systems of Alabama#76 · 160,043 sh	160,043	$17.8M	0.05%	-8.0%
77	Wellesley Asset Management#77 · 11,876,000 sh	11,876,000	$17.1M	1.56%	-17.7%
78	Penn Capital Management Company#78 · 153,877 sh	153,877	$17.1M	1.08%	New
79	ExodusPoint Capital Management#79 · 150,033 sh	150,033	$16.6M	0.11%	-30.6%
80	Russell Investments Group, Ltd.#80 · 314,146 sh	314,146	$16.6M	0.01%	-17.0%
81	PFM Health Sciences#81 · 146,403 sh	146,403	$16.2M	1.39%	New
82	LOOMIS SAYLES & L P#82 · 141,424 sh	141,424	$15.7M	0.02%	+1.2%
83	HOTCHKIS & WILEY CAPITAL MANAGEMENT#83 · 139,177 sh	139,177	$15.4M	0.04%	-25.3%
84	THOMPSON SIEGEL & WALMSLEY#84 · 138,733 sh	138,733	$15.4M	0.28%	-21.6%
85	ABSOLUTE INVESTMENT ADVISERS#85 · 10,600,000 sh	10,600,000	$15.4M	—	0.0%
86	Defilade Capital Management, L.P.#86 · 132,662 sh	132,662	$14.7M	1.97%	-46.8%
87	Swiss National Bank#87 · 130,654 sh	130,654	$14.5M	<0.01%	-0.4%
88	CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM#88 · 130,421 sh	130,421	$14.5M	<0.01%	-1.0%
89	NEW YORK STATE COMMON RETIREMENT FUND#89 · 127,334 sh	127,334	$14.1M	0.02%	+520.2%
90	SEI INVESTMENTS#90 · 1,711,305 sh	1,711,305	$13.2M	0.01%	+0.8%
91	Amundi#91 · 2,932,089 sh	2,932,089	$13.2M	<0.01%	+0.1%
92	FIL Ltd#92 · 114,279 sh	114,279	$12.7M	<0.01%	-47.3%
93	Lombard Odier Asset Management (Europe) Ltd#93 · 8,354,000 sh	8,354,000	$12.2M	0.52%	+16.5%
94	ALLIANCEBERNSTEIN L.P.#94 · 133,938 sh	133,938	$10.2M	<0.01%	-0.3%
95	Legal & General Group Plc#95 · 88,207 sh	88,207	$9.8M	<0.01%	-7.1%
96	Creative Planning#96 · 85,571 sh	85,571	$9.5M	<0.01%	+6.6%
97	DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt#97 · 6,220,000 sh	6,220,000	$9.1M	<0.01%	0.0%
98	Nykredit A/S#98 · 6,002,739 sh	6,002,739	$9.1M	0.03%	—
99	FIRST ADVISORS#99 · 77,457 sh	77,457	$8.6M	<0.01%	+28.5%
100	SSI INVESTMENT MANAGEMENT#100 · 5,917,000 sh	5,917,000	$8.6M	0.50%	0.0%

Funds that sold out of LNTH in Q2 2026 (33)

Held LNTH at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held LNTH in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
MACKENZIE FINANCIAL714,561 sh	714,561	$54.2M
HEALTHCARE OF ONTARIO PENSION PLAN FUND598,857 sh	598,857	$45.4M
Alyeska Investment Group, L.P.305,549 sh	305,549	$23.2M
SECTOR GAMMA AS93,344 sh	93,344	$7.1M
RENAISSANCE TECHNOLOGIES77,182 sh	77,182	$5.9M
CLARK ESTATES42,000 sh	42,000	$3.2M
AMERICAN ASSETS12,600 sh	12,600	$763.7K
Waterfront Wealth9,843 sh	9,843	$746.6K
SHENKMAN CAPITAL MANAGEMENT377,000 sh	377,000	$456.4K
Vontobel Holding Ltd.4,572 sh	4,572	$346.8K
Campbell & Investment Adviser4,174 sh	4,174	$316.6K
DIVERSIFIED MANAGEMENT4,030 sh	4,030	$305.7K
Sovran Advisors2,780 sh	2,780	$235.2K
Sumitomo Mitsui3,033 sh	3,033	$230.1K
CIBC WORLD MARKET3,000 sh	3,000	$227.6K
INTERNATIONAL ASSETS INVESTMENT MANAGEMENT1,000 sh	1,000	$75.7K
Western Wealth Management335 sh	335	$25.4K
FORESIGHT CAPITAL MANAGEMENT ADVISORS13,000 sh	13,000	$15.5K
INSIGNEO ADVISORY SERVICES11,000 sh	11,000	$13.2K
Global Wealth Strategies & Associates92 sh	92	$7.0K
MAI Capital Management82 sh	82	$6.2K
Bank of New Hampshire64 sh	64	$4.9K
Root Financial Partners57 sh	57	$4.3K
Federation des caisses Desjardins du Quebec55 sh	55	$4.2K
Legacy Wealth Managment46 sh	46	$3.5K
TWIN PEAKS WEALTH ADVISORS13 sh	13	$986.00
Quarry11 sh	11	$834.00
Vermillion Wealth Management3 sh	3	$228.00
Annis Gardner Whiting Capital Advisors3 sh	3	$228.00
Lloyd Advisory Services1 sh	1	$76.00
Kingdom Financial Group1 sh	1	$76.00
CURIO WEALTH1 sh	1	$76.00
Elequin Securities35 sh	35	—

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.