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LNTH

Lantheus Holdings, Inc.

Company with tickers: LNTH

CIK
1521036
CUSIP
516544103
Shares Outstanding
65,106,082
Price History Institutional Holders Short Volume Short Interest Fails to Deliver Financials SEC Filings Earnings Calls Insider Trades Congressional Trades
Holders: 394
Total Value: $4,849,714,769
Total Shares: 63,938,234
Showing 1–100 of 402 holdings by value · page 1 of 5

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 394 13F filers · Δ vs Dec 31, 2025
Top Holder
12.8%
Jun 2023 → Mar 2026 · range 10.5% – 15.1%
−2.3 pts
Top 5
40.0%
Jun 2023 → Mar 2026 · range 29.2% – 43.9%
−1.1 pts
Top 10
52.5%
Jun 2023 → Mar 2026 · range 40.8% – 56.1%
−0.0 pts
HHI
432
Jun 2023 → Mar 2026 · range 303 – 494
Broadly held −62

Quarterly Activity

vs Dec 31, 2025
New
66
Increased
141
Decreased
128
Sold Out
57
Unchanged
59
Holder count: +9
Institutional value: +33.5%
Shares held: +17.1%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Mega AMERICAN CENTURY COMPANIES INC +1,012,076 1,781,106
Mega MORGAN STANLEY +851,258 1,461,703
Mega WELLINGTON MANAGEMENT GROUP LLP +652,476 768,850
Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND +522,678 598,857
Mega UBS Group AG +471,220 867,675

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds
Mega JANUS HENDERSON GROUP PLC −932,406 4,774,841
Mega CITADEL ADVISORS LLC −334,452 417,544
Mega BANK OF AMERICA CORP /DE/ −288,157 531,646
Mega AQR CAPITAL MANAGEMENT LLC −288,050 115,572
Small Private Capital Management, LLC −201,180 357,644

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Large FARALLON CAPITAL MANAGEMENT LLC 5,583,479 $423,506,882
Large Swedbank AB 1,228,743 $93,200,156
Large BROWN ADVISORY INC 687,607 $52,154,990
Large Boston Partners 470,658 $35,699,408
Mid Longaeva Partners L.P. 383,945 $29,122,228

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Mega NORGES BANK 1,144,955 $76,196,755
Mid Carmignac Gestion 1,122,000 $74,669,100
Large Freestone Grove Partners LP 608,526 $40,497,405
Mega VANGUARD GROUP INC 455,478 $30,312,060
Mid Vestal Point Capital, LP 360,000 $23,958,000
100 of 100 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Mega BlackRock, Inc. $620,695,182 12.80% 8,183,193 View
Large FARALLON CAPITAL MANAGEMENT LLC $423,506,882 8.73% 5,583,479 View
Mega JANUS HENDERSON GROUP PLC $362,171,687 7.47% 4,774,841 View
Mega FMR LLC $350,916,458 7.24% 4,626,453 View
Mega STATE STREET CORP $184,300,557 3.80% 2,429,803 View
Mega AMERICAN CENTURY COMPANIES INC $135,096,890 2.79% 1,781,106 View
Mega GEODE CAPITAL MANAGEMENT, LLC $133,947,458 2.76% 1,765,952 View
Mid REINHART PARTNERS, LLC. $118,695,996 2.45% 1,564,878 View
Mega MORGAN STANLEY $110,870,170 2.29% 1,461,703 View
Mega DIMENSIONAL FUND ADVISORS LP $104,640,383 2.16% 1,379,570 View
Large Swedbank AB $93,200,156 1.92% 1,228,743 View
Mega TD Asset Management Inc $85,977,340 1.77% 1,133,518 View
Large Point72 Asset Management, L.P. $73,893,828 1.52% 974,210 View
Mega PRICE T ROWE ASSOCIATES INC /MD/ $69,761,671 1.44% 919,732 View
Mega UBS Group AG $65,813,148 1.36% 867,675 View
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $63,745,629 1.31% 840,417 View
Mid DEERFIELD MANAGEMENT COMPANY, L.P. $62,803,724 1.29% 827,999 View
Mega WELLINGTON MANAGEMENT GROUP LLP $58,317,270 1.20% 768,850 View
Mega JPMORGAN CHASE & CO $56,089,022 1.16% 739,473 View
Large MACKENZIE FINANCIAL CORP $54,199,451 1.12% 714,561 View
Large BROWN ADVISORY INC $52,154,990 1.08% 687,607 View
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $49,864,776 1.03% 657,413 View
Large Epoch Investment Partners, Inc. $49,283,613 1.02% 649,751 View
Mid Polaris Capital Management, LLC $46,799,450 0.96% 617,000 View
Large MARSHALL WACE, LLP $46,401,008 0.96% 611,747 View
Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND $45,423,303 0.94% 598,857 View
Large JACOBS LEVY EQUITY MANAGEMENT, INC $43,814,373 0.90% 577,645 View
Mega GOLDMAN SACHS GROUP INC $42,140,514 0.87% 555,577 View
Large Balyasny Asset Management L.P. $40,912,124 0.84% 539,382 View
Mega BANK OF AMERICA CORP /DE/ $40,325,346 0.83% 531,646 View
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $36,900,870 0.76% 486,498 View
Large Boston Partners $35,699,408 0.74% 470,658 View
Mega Bank of New York Mellon Corp $35,175,507 0.73% 463,751 View
Mid Portolan Capital Management, LLC $31,659,031 0.65% 417,390 View
Small Summit Street Capital Management, LLC $31,513,702 0.65% 415,474 View
Large WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC $30,305,943 0.62% 399,551 View
Mid Longaeva Partners L.P. $29,122,228 0.60% 383,945 View
Micro BRIGADE CAPITAL MANAGEMENT, LP $27,590,058 0.57% 363,745 View
Mega Invesco Ltd. $27,500,326 0.57% 362,562 View
Small Private Capital Management, LLC $27,127,297 0.56% 357,644 View
Large ADAGE CAPITAL PARTNERS GP, L.L.C. $26,301,366 0.54% 346,755 View
Large VOYA INVESTMENT MANAGEMENT LLC $25,560,463 0.53% 336,987 View
Large Alyeska Investment Group, L.P. $23,175,891 0.48% 305,549 View
Mega BNP PARIBAS ARBITRAGE, SA $22,732,624 0.47% 299,705 View
Large SILVERCREST ASSET MANAGEMENT GROUP LLC $22,209,335 0.46% 292,806 View
Mega CITADEL ADVISORS LLC $21,582,662 0.45% 284,544 View
Mega AMERIPRISE FINANCIAL INC $20,475,327 0.42% 269,945 View
Mega VICTORY CAPITAL MANAGEMENT INC $20,441,271 0.42% 269,496 View
Mega MILLENNIUM MANAGEMENT LLC $19,359,726 0.40% 255,237 View
Small Defilade Capital Management, L.P. $18,917,065 0.39% 249,401 View
Mega DEUTSCHE BANK AG\ $17,967,724 0.37% 236,885 View
Mega PRINCIPAL FINANCIAL GROUP INC $17,120,558 0.35% 225,716 View
Mega FIL Ltd $16,434,343 0.34% 216,669 View
Mega RHUMBLINE ADVISERS $14,757,603 0.30% 194,563 View
Large HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC $14,123,042 0.29% 186,197 View
Mid THOMPSON SIEGEL & WALMSLEY LLC $13,422,946 0.28% 176,967 View
Large Retirement Systems of Alabama $13,197,900 0.27% 174,000 View
Small Sarissa Capital Management LP $12,660,806 0.26% 166,919 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $12,257,360 0.25% 161,600 View
Mega CITIGROUP INC $12,153,065 0.25% 160,225 View
Mega Nuveen, LLC $11,119,685 0.23% 146,601 View
Large LOOMIS SAYLES & CO L P $10,602,843 0.22% 139,787 View
Large FRED ALGER MANAGEMENT, LLC $10,334,865 0.21% 136,254 View
Mega ALLIANCEBERNSTEIN L.P. $10,187,489 0.21% 134,311 View
Large Assenagon Asset Management S.A. $10,036,396 0.21% 132,319 View
Mega California Public Employees Retirement System $9,995,209 0.21% 131,776 View
Large Russell Investments Group, Ltd. $9,977,606 0.21% 131,544 View
Mega Swiss National Bank $9,948,030 0.21% 131,154 View
Large STATE OF WISCONSIN INVESTMENT BOARD $9,590,246 0.20% 126,437 View
Mid Integral Health Asset Management, LLC $9,481,250 0.20% 125,000 View
Mega WELLS FARGO & COMPANY/MN $8,907,290 0.18% 117,433 View
Mega AQR CAPITAL MANAGEMENT LLC $8,766,134 0.18% 115,572 View
Mega BARCLAYS PLC $7,974,564 0.16% 105,136 View
Micro BRIGADE CAPITAL MANAGEMENT, LP $7,585,000 0.16% 100,000 View
Mega Legal & General Group Plc $7,203,170 0.15% 94,966 View
Small SECTOR GAMMA AS $7,080,142 0.15% 93,344 View
Mega RAYMOND JAMES FINANCIAL INC $7,059,888 0.15% 93,077 View
Mega CITADEL ADVISORS LLC $6,636,875 0.14% 87,500 View
Small Stanley-Laman Group, Ltd. $6,483,202 0.13% 85,474 View
Large SEI INVESTMENTS CO $6,473,796 0.13% 85,350 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $6,348,645 0.13% 83,700 View
Large Creative Planning $6,090,147 0.13% 80,292 View
Mega Amundi $5,950,886 0.12% 78,456 View
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $5,932,000 0.12% 78,207 View
Large RENAISSANCE TECHNOLOGIES LLC $5,854,254 0.12% 77,182 View
Large LSV ASSET MANAGEMENT $5,794,940 0.12% 76,400 View
Large Focus Partners Wealth $5,500,414 0.11% 72,517 View
Mega FRANKLIN RESOURCES INC $5,444,814 0.11% 71,784 View
Large NEW YORK STATE TEACHERS RETIREMENT SYSTEM $5,442,692 0.11% 71,756 View
Large Cambridge Investment Research Advisors, Inc. $5,298,198 0.11% 69,851 View
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE $5,247,378 0.11% 69,181 View
Large MetLife Investment Management, LLC $5,088,624 0.10% 67,088 View
Small SkyOak Wealth, LLC $4,875,941 0.10% 64,284 View
Mega ENVESTNET ASSET MANAGEMENT INC $4,579,519 0.09% 60,376 View
Mega FIRST TRUST ADVISORS LP $4,570,569 0.09% 60,258 View
Large Verition Fund Management LLC $4,551,000 0.09% 60,000 View
Mega LPL Financial LLC $4,514,288 0.09% 59,516 View
Large Universal- Beteiligungs- und Servicegesellschaft mbH $4,453,760 0.09% 58,718 View
Large Man Group plc $4,409,235 0.09% 58,131 View
Large Lido Advisors, LLC $4,312,451 0.09% 56,855 View
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