Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
162 institutional managers reported holding HTFL for the quarter ended Mar 31, 2026. Together they hold about 75% of shares outstanding; the top 10 hold 52%. 70 opened new positions; 18 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Wellington Management | 11.98M | 13.99% | $291.8M | added +103.3% | 2025 Q3 |
| Bain Capital Life Sciences Investors, LLC (focused) | 10.45M | 12.20% | $254.4M | trimmed -16.1% | 2025 Q3 |
| FMR (Fidelity) | 5.40M | 6.30% | $131.4M | added +30.9% | 2025 Q3 |
| Vanguard Group | 4.12M | 4.81% | $100.3M | added +160.6% | 2025 Q3 |
| Bamco INC /NY/ | 3.83M | 4.47% | $93.2M | added +66.1% | 2025 Q3 |
| Janus Henderson | 2.18M | 2.55% | $53.1M | added +152% | 2025 Q3 |
| Invesco | 1.91M | 2.23% | $46.6M | added +231.3% | 2025 Q3 |
| UBS | 1.84M | 2.15% | $44.9M | trimmed -4.6% | 2025 Q3 |
| BlackRock | 1.46M | 1.71% | $35.6M | added +9% | 2025 Q3 |
| AllianceBernstein | 1.22M | 1.43% | $29.8M | added +12.4% | 2025 Q3 |
| Millennium Management | 1.09M | 1.28% | $26.6M | added +1513.4% | 2025 Q3 |
| Baillie Gifford | 1.08M | 1.27% | $26.4M | trimmed -63.9% | 2025 Q3 |
| Summit Partners Public Asset Management, LLC | 892.1k | 1.04% | $21.7M | trimmed -29.1% | 2025 Q3 |
| Morgan Stanley | 851.9k | 0.99% | $20.7M | added +14.2% | 2025 Q3 |
| Franklin Resources | 793.7k | 0.93% | $19.3M | added +15.8% | 2025 Q3 |
| Eventide Asset Management, LLC | 757.0k | 0.88% | $18.4M | added +49.6% | 2025 Q3 |
| Citadel Advisors | 756.6k | 0.88% | $18.4M | trimmed -39.4% | 2025 Q3 |
| Voya Investment Management LLC | 727.7k | 0.85% | $17.7M | added +218.3% | 2025 Q4 |
| Ensign Peak Advisors, INC | 690.5k | 0.81% | $16.8M | trimmed -1.5% | 2025 Q3 |
| Next Century Growth Investors LLC | 653.0k | 0.76% | $15.9M | opened | 2026 Q1 |
| 12 West Capital Management LP (focused) | 640.0k | 0.75% | $15.6M | opened | 2026 Q1 |
| Fred Alger Management, LLC | 638.3k | 0.74% | $15.5M | added +44.9% | 2025 Q3 |
| Rock Springs Capital Management LP | 572.5k | 0.67% | $13.9M | added +106.2% | 2025 Q3 |
| Champlain Investment Partners, LLC | 567.4k | 0.66% | $13.8M | opened | 2026 Q1 |
| Geode Capital | 541.7k | 0.63% | $13.2M | added +8.3% | 2025 Q3 |
| Point72 | 538.4k | 0.63% | $13.1M | added +76.8% | 2025 Q3 |
| RTW Investments, LP | 495.0k | 0.58% | $12.1M | unchanged | 2025 Q3 |
| State Street | 450.6k | 0.53% | $11.0M | added +39.8% | 2025 Q3 |
| Lord, Abbett & CO. LLC | 450.4k | 0.53% | $11.0M | trimmed -43.1% | 2025 Q3 |
| Catalio Capital Management, LP (focused) | 403.6k | 0.47% | $9.8M | added +254.5% | 2025 Q4 |
| Freestone Grove Partners LP | 362.1k | 0.42% | $8.8M | added +141.4% | 2025 Q3 |
| BNP Paribas Financial Markets | 342.8k | 0.40% | $8.3M | added +3886.2% | 2025 Q4 |
| NZS Capital, LLC | 290.1k | 0.34% | $7.1M | added +38.4% | 2025 Q4 |
| Xxec, INC. (focused) | 278.7k | 0.33% | $6.8M | added +564.8% | 2025 Q3 |
| Schusterman Interests, LLC (focused) | 259.7k | 0.30% | $6.3M | trimmed -86.6% | 2025 Q3 |
| Capricorn Investment Group LLC (focused) | 256.7k | 0.30% | $6.3M | trimmed -84.6% | 2025 Q4 |
| Alyeska Investment Group | 225.0k | 0.26% | $5.5M | unchanged | 2025 Q3 |
| Emerald Advisers, LLC | 221.3k | 0.26% | $5.4M | unchanged | 2025 Q3 |
| Goldman Sachs | 220.5k | 0.26% | $5.4M | added +49.8% | 2025 Q3 |
| AQR Capital | 208.8k | 0.24% | $5.1M | opened | 2026 Q1 |
| Gilder Gagnon Howe & CO LLC | 183.9k | 0.21% | $4.5M | trimmed -1.1% | 2025 Q3 |
| Voloridge Investment Management | 176.0k | 0.21% | $4.3M | opened | 2026 Q1 |
| Northern Trust | 158.3k | 0.18% | $3.9M | added +14.1% | 2025 Q3 |
| Charles Schwab Investment Management | 149.1k | 0.17% | $3.6M | trimmed -2.8% | 2025 Q3 |
| Balyasny Asset Management | 148.2k | 0.17% | $3.6M | opened | 2026 Q1 |
| Royal Bank OF Canada | 137.4k | 0.16% | $3.3M | added +24.4% | 2025 Q3 |
| Wealth Enhancement Advisory Services, LLC | 134.0k | 0.16% | $3.3M | opened | 2026 Q1 |
| Emerald Mutual Fund Advisers Trust | 131.3k | 0.15% | $3.2M | unchanged | 2025 Q3 |
| Lisanti Capital Growth, LLC | 123.8k | 0.14% | $3.0M | added +182.7% | 2025 Q3 |
| Quantbot Technologies LP | 120.8k | 0.14% | $2.9M | opened | 2026 Q1 |
Largest 50 of 162 shown; the full ranked, searchable register is at boothcheck.com/holders/HTFL. 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.