Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
391 institutional managers reported holding LNTH for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 59%. 61 opened new positions; 54 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 8.18M | 12.44% | $620.6M | trimmed -1% | 2015 Q3 |
| Vanguard Group | 6.68M | 10.15% | $506.2M | unchanged | 2015 Q3 |
| Farallon Capital | 5.58M | 8.49% | $423.5M | added +2.9% | 2023 Q1 |
| Janus Henderson | 4.77M | 7.26% | $362.1M | trimmed -16.3% | 2021 Q4 |
| FMR (Fidelity) | 4.63M | 7.03% | $350.9M | added +7% | 2018 Q3 |
| State Street | 2.43M | 3.69% | $184.3M | unchanged | 2017 Q1 |
| American Century Companies INC | 1.78M | 2.71% | $135.1M | added +131.6% | 2020 Q3 |
| Geode Capital | 1.77M | 2.69% | $133.9M | added +2.3% | 2015 Q3 |
| Morgan Stanley | 1.65M | 2.50% | $124.9M | trimmed -6.3% | 2015 Q3 |
| Reinhart Partners, LLC. | 1.56M | 2.38% | $118.7M | unchanged | 2021 Q1 |
| Dimensional Fund Advisors | 1.38M | 2.10% | $104.6M | trimmed -2.5% | 2017 Q1 |
| UBS | 1.35M | 2.06% | $102.7M | added +51.1% | 2015 Q2 |
| Swedbank Robur | 1.23M | 1.87% | $93.2M | unchanged | 2023 Q3 |
| TD Asset Management INC | 1.13M | 1.72% | $86.0M | added +59.2% | 2015 Q2 |
| Point72 | 974.2k | 1.48% | $73.9M | trimmed -4% | 2025 Q4 |
| T. Rowe Price | 919.7k | 1.40% | $69.8M | added +12.5% | 2015 Q2 |
| Nomura Asset Management International INC. | 840.4k | 1.28% | $63.7M | trimmed -10.6% | 2025 Q4 |
| Deerfield Management Company, L.p. | 828.0k | 1.26% | $62.8M | unchanged | 2025 Q4 |
| Northern Trust | 804.9k | 1.22% | $61.0M | added +0.9% | 2015 Q3 |
| Wellington Management | 768.9k | 1.17% | $58.3M | added +560.7% | 2024 Q4 |
| Mackenzie Financial CORP | 714.6k | 1.09% | $54.2M | added +8.6% | 2022 Q1 |
| Brown Advisory INC | 687.6k | 1.04% | $52.1M | opened | 2026 Q1 |
| Charles Schwab Investment Management | 657.4k | 1.00% | $49.9M | added +2.2% | 2017 Q2 |
| Epoch Investment Partners, INC. | 649.8k | 0.99% | $49.3M | added +59.4% | 2025 Q1 |
| Polaris Capital Management, LLC | 617.0k | 0.94% | $46.8M | added +14.7% | 2025 Q3 |
| Marshall Wace | 611.7k | 0.93% | $46.4M | added +162.9% | 2021 Q3 |
| Healthcare OF Ontario Pension Plan Trust Fund | 598.9k | 0.91% | $45.4M | added +686.1% | 2025 Q4 |
| Jacobs Levy Equity Management, INC | 577.6k | 0.88% | $43.8M | added +216.9% | 2025 Q3 |
| Goldman Sachs | 555.6k | 0.84% | $42.1M | added +55.6% | 2016 Q1 |
| Balyasny Asset Management | 539.4k | 0.82% | $40.9M | added +283.1% | 2022 Q4 |
| Bank OF America CORP /DE/ | 531.6k | 0.81% | $40.3M | trimmed -35.1% | 2015 Q3 |
| Boston Partners | 470.7k | 0.72% | $35.7M | opened | 2026 Q1 |
| BNY Mellon | 463.8k | 0.70% | $35.2M | trimmed -1.2% | 2015 Q3 |
| Portolan Capital Management, LLC | 417.4k | 0.64% | $31.7M | trimmed -12.3% | 2023 Q1 |
| Summit Street Capital Management, LLC (focused) | 415.5k | 0.63% | $31.5M | added +2.4% | 2025 Q4 |
| William Blair Investment Management, LLC | 399.6k | 0.61% | $30.3M | trimmed -23.5% | 2021 Q2 |
| Longaeva Partners L.p. | 383.9k | 0.58% | $29.1M | opened | 2026 Q1 |
| Brigade Capital Management, LP (focused) | 363.7k | 0.55% | $27.6M | added +185.1% | 2025 Q2 |
| Invesco | 362.6k | 0.55% | $27.5M | trimmed -1% | 2016 Q3 |
| Private Capital Management, LLC | 357.6k | 0.54% | $27.1M | trimmed -36% | 2020 Q2 |
| Adage Capital Partners GP, L.l.c. | 346.8k | 0.53% | $26.3M | opened | 2026 Q1 |
| Voya Investment Management LLC | 337.0k | 0.51% | $25.6M | added +728.1% | 2017 Q2 |
| BNP Paribas Financial Markets | 305.9k | 0.47% | $23.2M | trimmed -2.2% | 2017 Q2 |
| Alyeska Investment Group | 305.5k | 0.47% | $23.2M | opened | 2026 Q1 |
| Silvercrest Asset Management Group LLC | 292.8k | 0.45% | $22.2M | trimmed -29.7% | 2021 Q2 |
| Citadel Advisors | 284.5k | 0.43% | $21.6M | trimmed -55.8% | 2018 Q1 |
| Ameriprise Financial INC | 269.9k | 0.41% | $20.5M | added +20.1% | 2017 Q2 |
| Victory Capital Management INC | 269.5k | 0.41% | $20.4M | added +218.4% | 2017 Q3 |
| Millennium Management | 255.2k | 0.39% | $19.4M | added +46.7% | 2021 Q1 |
| Defilade Capital Management, L.p. (focused) | 249.4k | 0.38% | $18.9M | opened | 2026 Q1 |
Largest 50 of 391 shown; the full ranked, searchable register is at boothcheck.com/holders/LNTH. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.