Lantheus Holdings, Inc.
LNTH- Exchange
- Nasdaq
- Industry
- In Vitro & In Vivo Diagnostic Substances
- SEC CIK
- 0001521036
No open-market purchases or sales by Lantheus Holdings, Inc. insiders were filed in the last 90 days; 467 institutions reported holding it in 13F filings for Q2 2026, worth $8.34B in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Lantheus Holdings, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 408
- +23 vs. Q4 2025
- Shares held
- 72.7M
- +11.2M (+18.2%) vs. Q4 2025
- Total value
- $5.51B
- +$1.42B (+34.6%) vs. Q4 2025
- New holders
- 70
- 143 more added
- Sold out
- 47
- 132 more reduced
8 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting LNTH on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 467 | $8.34B |
| Q1 2026 | 408 | $5.51B |
| Q4 2025 | 393 | $4.62B |
| Q3 2025 | 420 | $3.66B |
| Q2 2025 | 477 | $6.63B |
| Q1 2025 | 526 | $7.58B |
| Q4 2024 | 489 | $6.69B |
| Q3 2024 | 503 | $7.72B |
| Q2 2024 | 454 | $5.49B |
| Q1 2024 | 409 | $4.19B |
| Q4 2023 | 401 | $4.31B |
| Q3 2023 | 401 | $4.90B |
| Q2 2023 | 433 | $5.71B |
| Q1 2023 | 388 | $5.54B |
| Q4 2022 | 366 | $3.36B |
| Q3 2022 | 353 | $4.74B |
| Q2 2022 | 323 | $4.44B |
| Q1 2022 | 276 | $3.67B |
| Q4 2021 | 197 | $1.87B |
| Q3 2021 | 181 | $1.62B |
| Q2 2021 | 192 | $1.77B |
| Q1 2021 | 161 | $1.31B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Lantheus Holdings, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8,183,193 | $620.7M | 0.01% | −83,221−1.0% | Reduced |
| Farallon Capital Management, L.L.C. | 5,583,479 | $423.5M | 2.51% | +156,000+2.9% | Added |
| Janus Henderson Group PLC | 4,774,841 | $362.2M | 0.17% | −932,406−16.3% | Reduced |
| FMR LLC | 4,626,453 | $350.9M | 0.02% | +302,927+7.0% | Added |
| Vanguard Portfolio Management LLC | 3,174,274 | $240.8M | 0.01% | +3,174,274 | New |
| Vanguard Capital Management LLC | 2,914,314 | $221.1M | 0.01% | +2,914,314 | New |
| State Street Corp | 2,429,803 | $184.3M | 0.01% | +2,549+0.1% | Added |
| American Century Companies Inc | 1,781,106 | $135.1M | 0.07% | +1,012,076+131.6% | Added |
| Geode Capital Management, LLC | 1,765,952 | $134.0M | 0.01% | +39,431+2.3% | Added |
| Morgan Stanley | 1,646,463 | $124.9M | 0.01% | −111,106−6.3% | Reduced |
| Reinhart Partners, Inc. | 1,564,878 | $118.7M | 3.41% | +2,302+0.1% | Added |
| Dimensional Fund Advisors LP | 1,379,570 | $104.6M | 0.02% | −35,893−2.5% | Reduced |
| Carmignac Gestion | 1,328,000 | $100.7M | 1.55% | +206,000+18.4% | Added |
| Swedbank AB | 1,228,743 | $93.2M | 0.10% | 00.0% | Unchanged |
| TD Asset Management Inc | 1,133,518 | $86.0M | 0.07% | +421,624+59.2% | Added |
| Point72 Asset Management, L.P. | 974,210 | $73.9M | 0.13% | −40,159−4.0% | Reduced |
| Price T Rowe Associates Inc | 919,732 | $69.8M | 0.01% | +102,485+12.5% | Added |
| UBS Group AG | 867,675 | $65.8M | 0.01% | +471,220+118.9% | Added |
| Nomura Asset Management International Inc. | 840,417 | $63.7M | 0.11% | −99,580−10.6% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 827,999 | $62.8M | 0.74% | 00.0% | Unchanged |
| Northern Trust Corp | 804,923 | $61.1M | 0.01% | +6,796+0.9% | Added |
| Wellington Management Group LLP | 768,850 | $58.3M | 0.01% | +652,476+560.7% | Added |
| Mackenzie Financial Corp | 714,561 | $54.2M | 0.07% | +56,887+8.6% | Added |
| JPMorgan Chase & Co | 739,473 | $54.0M | 0.00% | +994+0.1% | Added |
| Brown Advisory Inc | 687,607 | $52.2M | 0.09% | +687,607 | New |
| Charles Schwab Investment Management Inc | 657,413 | $49.9M | 0.01% | +14,245+2.2% | Added |
| Epoch Investment Partners, Inc. | 649,751 | $49.3M | 0.30% | +242,222+59.4% | Added |
| Polaris Capital Management, LLC | 617,000 | $46.8M | 3.83% | +79,000+14.7% | Added |
| Marshall Wace, LLP | 611,747 | $46.4M | 0.05% | +379,070+162.9% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 598,857 | $45.4M | 0.07% | +522,678+686.1% | Added |
| Jacobs Levy Equity Management, Inc | 577,645 | $43.8M | 0.18% | +395,340+216.9% | Added |
| Goldman Sachs Group Inc | 555,577 | $42.1M | 0.01% | +198,443+55.6% | Added |
| Balyasny Asset Management LLC | 539,382 | $40.9M | 0.08% | +398,601+283.1% | Added |
| Bank of America Corp | 531,646 | $40.3M | 0.00% | −288,157−35.1% | Reduced |
| UBS Asset Management Americas Inc | 486,498 | $36.9M | 0.01% | −13,375−2.7% | Reduced |
| Boston Partners | 470,658 | $35.7M | 0.04% | +470,658 | New |
| Bank of New York Mellon Corp | 463,751 | $35.2M | 0.01% | −5,492−1.2% | Reduced |
| Vanguard Fiduciary Trust Co | 458,977 | $34.8M | 0.01% | +458,977 | New |
| Portolan Capital Management, LLC | 417,390 | $31.7M | 1.68% | −58,399−12.3% | Reduced |
| Summit Street Capital Management, LLC | 415,474 | $31.5M | 4.46% | +9,810+2.4% | Added |
| William Blair Investment Management, LLC | 399,551 | $30.3M | 0.10% | −122,626−23.5% | Reduced |
| Longaeva Partners L.P. | 383,945 | $29.1M | 1.40% | +383,945 | New |
| Brigade Capital Management, LP | 363,745 | $27.6M | 19.47% | +236,138+185.1% | Added |
| Invesco Ltd. | 362,562 | $27.5M | 0.00% | −3,562−1.0% | Reduced |
| Private Capital Management, LLC | 357,644 | $27.1M | 2.76% | −201,180−36.0% | Reduced |
| Adage Capital Partners GP, L.L.C. | 346,755 | $26.3M | 0.04% | +346,755 | New |
| Voya Investment Management LLC | 336,987 | $25.6M | 0.03% | +296,291+728.1% | Added |
| Alyeska Investment Group, L.P. | 305,549 | $23.2M | 0.07% | +305,549 | New |
| BNP Paribas Arbitrage, SA | 299,705 | $22.7M | 0.01% | −7,018−2.3% | Reduced |
| Silvercrest Asset Management Group LLC | 292,806 | $22.2M | 0.16% | −123,522−29.7% | Reduced |
| Citadel Advisors LLC | 284,544 | $21.6M | 0.02% | −359,652−55.8% | Reduced |
| Ameriprise Financial Inc | 269,945 | $20.5M | 0.00% | +45,248+20.1% | Added |
| Victory Capital Management Inc | 269,496 | $20.4M | 0.01% | +184,855+218.4% | Added |
| Millennium Management LLC | 255,237 | $19.4M | 0.01% | +81,194+46.7% | Added |
| Defilade Capital Management, L.P. | 249,401 | $18.9M | 2.66% | +249,401 | New |
| Deutsche Bank AG | 236,885 | $18.0M | 0.01% | +1,587+0.7% | Added |
| Principal Financial Group Inc | 225,716 | $17.1M | 0.01% | −1,359−0.6% | Reduced |
| FIL Ltd | 216,669 | $16.4M | 0.01% | +1,861+0.9% | Added |
| ExodusPoint Capital Management, LP | 216,322 | $16.4M | 0.16% | +216,322 | New |
| Rhumbline Advisers | 194,563 | $14.8M | 0.01% | −541−0.3% | Reduced |
| Hotchkis & Wiley Capital Management LLC | 186,197 | $14.1M | 0.04% | −38,299−17.1% | Reduced |
| Thompson Siegel & Walmsley LLC | 176,967 | $13.4M | 0.24% | −57,564−24.5% | Reduced |
| Retirement Systems of Alabama | 174,000 | $13.2M | 0.04% | +1,710+1.0% | Added |
| Sarissa Capital Management LP | 166,919 | $12.7M | 8.03% | −14,531−8.0% | Reduced |
| Citigroup Inc | 160,225 | $12.2M | 0.01% | −3,581−2.2% | Reduced |
| Nuveen, LLC | 146,601 | $11.1M | 0.00% | −5,215−3.4% | Reduced |
| Loomis Sayles & Co L P | 139,787 | $10.6M | 0.01% | −22,628−13.9% | Reduced |
| Fred Alger Management, LLC | 136,254 | $10.3M | 0.05% | +136,254 | New |
| Assenagon Asset Management S.A. | 132,319 | $10.0M | 0.02% | +60,376+83.9% | Added |
| California Public Employees Retirement System | 131,776 | $10.0M | 0.01% | +12,060+10.1% | Added |
| Russell Investments Group, Ltd. | 131,544 | $9.98M | 0.01% | +57,330+77.2% | Added |
| Swiss National Bank | 131,154 | $9.95M | 0.01% | −3,000−2.2% | Reduced |
| State of Wisconsin Investment Board | 126,437 | $9.59M | 0.02% | −9,994−7.3% | Reduced |
| Integral Health Asset Management, LLC | 125,000 | $9.48M | 0.50% | +25,000+25.0% | Added |
| Alliancebernstein L.P. | 134,311 | $8.94M | 0.00% | +589+0.4% | Added |
| Wells Fargo & Company | 117,433 | $8.91M | 0.00% | −48,463−29.2% | Reduced |
| AQR Capital Management LLC | 115,572 | $8.55M | 0.00% | −288,050−71.4% | Reduced |
| Barclays PLC | 105,136 | $7.97M | 0.00% | −39,962−27.5% | Reduced |
| Legal & General Group Plc | 94,966 | $7.20M | 0.00% | −15,530−14.1% | Reduced |
| Sector Gamma AS | 93,344 | $7.08M | 1.67% | −479−0.5% | Reduced |
| Raymond James Financial Inc | 93,077 | $7.06M | 0.00% | −15,989−14.7% | Reduced |
| Stanley-Laman Group, Ltd. | 85,474 | $6.48M | 0.80% | +10,028+13.3% | Added |
| SEI Investments Co | 85,350 | $6.47M | 0.01% | +67,254+371.7% | Added |
| Creative Planning | 80,292 | $6.09M | 0.00% | +16,259+25.4% | Added |
| Amundi | 78,456 | $5.95M | 0.00% | −390.0% | Reduced |
| California State Teachers Retirement System | 78,207 | $5.93M | 0.01% | +14,239+22.3% | Added |
| Renaissance Technologies LLC | 77,182 | $5.85M | 0.01% | +1,400+1.8% | Added |
| LSV Asset Management | 76,400 | $5.79M | 0.01% | 00.0% | Unchanged |
| Colony Group, LLC | 72,517 | $5.50M | 0.01% | −5,882−7.5% | Reduced |
| Franklin Resources Inc | 71,784 | $5.44M | 0.00% | −2,312−3.1% | Reduced |
| New York State Teachers Retirement System | 71,756 | $5.44M | 0.01% | −2,068−2.8% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 69,851 | $5.30M | 0.01% | −8,231−10.5% | Reduced |
| Manufacturers Life Insurance Company, The | 69,181 | $5.25M | 0.00% | +2,911+4.4% | Added |
| MetLife Investment Management | 67,088 | $5.09M | 0.03% | −1,154−1.7% | Reduced |
| SkyOak Wealth, LLC | 64,284 | $4.88M | 0.89% | +1,154+1.8% | Added |
| Vanguard Asset Management, Ltd | 61,064 | $4.63M | 0.00% | +61,064 | New |
| Envestnet Asset Management Inc | 60,376 | $4.58M | 0.00% | +7,572+14.3% | Added |
| First Trust Advisors LP | 60,258 | $4.57M | 0.00% | +44,713+287.6% | Added |
| Verition Fund Management LLC | 60,000 | $4.55M | 0.04% | −27,500−31.4% | Reduced |
| LPL Financial LLC | 59,516 | $4.51M | 0.00% | −17,437−22.7% | Reduced |