Institutional HoldersBeta
Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.
Share classes (cover page of the 10-K filed 2026-09-14, as of 2026-09-04)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | BNTC · NASDAQ | 34,882,726 | 34,673,997 | 99.4% | 86 | 08205P209 |
Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.
Top holders (86 of 86 · 08205P209)
change vs 2026-03-31| # | Filer | Shares | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | MONTANOVA CAPITAL, LLC | 11,548,351 | 33.11% | $154.5M | — |
| 2 | Nantahala Capital Management, LLC | 2,976,742 | 8.53% | $39.8M | +1,538,371 (+107.0%) |
| 3 | Jupiter Topco LLC | 2,478,547 | 7.11% | $33.1M | NEW |
| 4 | FRANKLIN RESOURCES INC | 2,412,888 | 6.92% | $32.3M | +34,729 (+1.5%) |
| 5 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 2,120,672 | 6.08% | $28.4M | — |
| 6 | RA CAPITAL MANAGEMENT, L.P. | 1,850,000 | 5.30% | $24.8M | — |
| 7 | BlackRock, Inc. | 1,407,138 | 4.03% | $18.8M | +221,397 (+18.7%) |
| 8 | Simplify Asset Management Inc. | 1,005,557 | 2.88% | $13.5M | +443,315 (+78.8%) |
| 9 | VANGUARD CAPITAL MANAGEMENT LLC | 954,533 | 2.74% | $12.8M | +22,977 (+2.5%) |
| 10 | INFINITUM ASSET MANAGEMENT, LLC | 923,006 | 2.65% | $12.3M | — |
| 11 | MILLENNIUM MANAGEMENT LLC | 921,299 | 2.64% | $12.3M | +269,235 (+41.3%) |
| 12 | Alyeska Investment Group, L.P. | 750,000 | 2.15% | $10.0M | — |
| 13 | SILVERARC CAPITAL MANAGEMENT, LLC | 679,826 | 1.95% | $9.1M | -37,899 (-5.3%) |
| 14 | Balyasny Asset Management L.P. | 650,503 | 1.86% | $8.7M | -3,332 (-0.5%) |
| 15 | GEODE CAPITAL MANAGEMENT, LLC | 611,736 | 1.75% | $8.2M | +87,632 (+16.7%) |
| 16 | AMERIPRISE FINANCIAL INC | 401,245 | 1.15% | $5.4M | -7,525 (-1.8%) |
| 17 | STATE STREET CORP | 377,973 | 1.08% | $5.1M | +39,724 (+11.7%) |
| 18 | MYDA Advisors LLC | 250,000 | 0.72% | $3.3M | +25,000 (+11.1%) |
| 19 | Schonfeld Strategic Advisors LLC | 235,357 | 0.67% | $3.1M | +82,178 (+53.6%) |
| 20 | AWM Investment Company, Inc. | 187,977 | 0.54% | $2.5M | — |
| 21 | NORTHERN TRUST CORP | 178,434 | 0.51% | $2.4M | +21,110 (+13.4%) |
| 22 | GOLDMAN SACHS GROUP INC | 178,041 | 0.51% | $2.4M | -37,435 (-17.4%) |
| 23 | VANGUARD FIDUCIARY TRUST CO | 160,995 | 0.46% | $2.2M | -10,758 (-6.3%) |
| 24 | Burkehill Global Management, LP | 150,000 | 0.43% | $2.0M | — |
| 25 | VANGUARD PORTFOLIO MANAGEMENT LLC | 143,510 | 0.41% | $1.9M | +28,764 (+25.1%) |
| 26 | Russell Investments Group, Ltd. | 128,970 | 0.37% | $1.7M | +12,780 (+11.0%) |
| 27 | UBS Group AG | 125,431 | 0.36% | $1.7M | +9,612 (+8.3%) |
| 28 | CANTOR FITZGERALD, L. P. | 93,318 | 0.27% | $1.2M | +46,659 (+100.0%) |
| 29 | CITADEL ADVISORS LLC | 81,466 | 0.23% | $1.1M | -90,256 (-52.6%) |
| 30 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 70,851 | 0.20% | $948K | +9,440 (+15.4%) |
| 31 | Lion Point Capital, LP | 62,000 | 0.18% | $830K | — |
| 32 | Bank of New York Mellon Corp | 60,061 | 0.17% | $804K | +16,572 (+38.1%) |
| 33 | Atom Investors LP | 48,591 | 0.14% | $650K | -3,872 (-7.4%) |
| 34 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 45,106 | 0.13% | $604K | +36,023 (+396.6%) |
| 35 | ADAR1 Capital Management, LLC | 40,000 | 0.11% | $535K | +22,500 (+128.6%) |
| 36 | Nuveen, LLC | 28,339 | 0.08% | $379K | -13,475 (-32.2%) |
| 37 | RHUMBLINE ADVISERS | 26,242 | 0.08% | $351K | +5,797 (+28.4%) |
| 38 | AQR CAPITAL MANAGEMENT LLC | 22,481 | 0.06% | $301K | NEW |
| 39 | DEUTSCHE BANK AG\ | 20,820 | 0.06% | $279K | +718 (+3.6%) |
| 40 | MORGAN STANLEY | 19,576 | 0.06% | $262K | -9,694 (-33.1%) |
| 41 | PRICE T ROWE ASSOCIATES INC /MD/ | 18,528 | 0.05% | $248K | NEW |
| 42 | WELLS FARGO & COMPANY/MN | 17,942 | 0.05% | $240K | +10,897 (+154.7%) |
| 43 | CANADA PENSION PLAN INVESTMENT BOARD | 17,200 | 0.05% | $230K | — |
| 44 | MARTINGALE ASSET MANAGEMENT L P | 16,150 | 0.05% | $216K | NEW |
| 45 | BANK OF AMERICA CORP /DE/ | 15,971 | 0.05% | $214K | -1,405 (-8.1%) |
| 46 | MetLife Investment Management, LLC | 15,424 | 0.04% | $206K | +6,027 (+64.1%) |
| 47 | Quadrature Capital Ltd | 15,371 | 0.04% | $206K | -2,714 (-15.0%) |
| 48 | EntryPoint Capital, LLC | 15,048 | 0.04% | $201K | -9,274 (-38.1%) |
| 49 | Longaeva Partners L.P. | 14,874 | 0.04% | $199K | -110,126 (-88.1%) |
| 50 | Persistent Asset Partners Ltd | 12,493 | 0.04% | $167K | -5,814 (-31.8%) |
| 51 | Invesco Ltd. | 10,985 | 0.03% | $147K | NEW |
| 52 | CITIGROUP INC | 9,851 | 0.03% | $132K | +8,977 (+1027.1%) |
| 53 | JPMORGAN CHASE & CO | 8,996 | 0.03% | $114K | +1,111 (+14.1%) |
| 54 | Vanguard Global Advisers, LLC | 8,660 | 0.02% | $116K | — |
| 55 | GAMMA Investing LLC | 7,961 | 0.02% | $107K | +1,256 (+18.7%) |
| 56 | Police & Firemen's Retirement System of New Jersey | 6,806 | 0.02% | $91K | — |
| 57 | FMR LLC | 5,216 | 0.01% | $70K | +3,562 (+215.4%) |
| 58 | NEW YORK STATE COMMON RETIREMENT FUND | 4,327 | 0.01% | $58K | — |
| 59 | Truvestments Capital LLC | 3,575 | 0.01% | $48K | -259 (-6.8%) |
| 60 | BARCLAYS PLC | 3,415 | 0.01% | $46K | -420 (-11.0%) |
| 61 | BNP PARIBAS FINANCIAL MARKETS | 3,382 | 0.01% | $45K | -2,966 (-46.7%) |
| 62 | NISA INVESTMENT ADVISORS, LLC | 2,900 | 0.01% | $39K | NEW |
| 63 | Tower Research Capital LLC (TRC) | 2,672 | 0.01% | $36K | -384 (-12.6%) |
| 64 | JONES FINANCIAL COMPANIES LLLP | 2,167 | 0.01% | $27K | +1,770 (+445.8%) |
| 65 | Legal & General Group Plc | 2,131 | 0.01% | $29K | +385 (+22.1%) |
| 66 | Ameritas Investment Partners, Inc. | 1,477 | 0.00% | $20K | — |
| 67 | ROYAL BANK OF CANADA | 636 | 0.00% | $9K | +279 (+78.2%) |
| 68 | Rockefeller Capital Management L.P. | 582 | 0.00% | $8K | — |
| 69 | Sterling Capital Management LLC | 409 | 0.00% | $5K | +283 (+224.6%) |
| 70 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 272 | 0.00% | $4K | -794 (-74.5%) |
| 71 | Arax Advisory Partners | 249 | 0.00% | $3K | NEW |
| 72 | PNC Financial Services Group, Inc. | 234 | 0.00% | $3K | +38 (+19.4%) |
| 73 | FIFTH THIRD BANCORP | 140 | 0.00% | $2K | +34 (+32.1%) |
| 74 | US BANCORP \DE\ | 94 | 0.00% | $1K | -388 (-80.5%) |
| 75 | GROUP ONE TRADING LLC | 89 | 0.00% | $1K | — |
| 76 | Cornerstone Planning Group LLC | 46 | 0.00% | $526 | NEW |
| 77 | Allworth Financial LP | 38 | 0.00% | $509 | -149 (-79.7%) |
| 78 | EverSource Wealth Advisors, LLC | 30 | 0.00% | $401 | -183 (-85.9%) |
| 79 | True Wealth Design, LLC | 23 | 0.00% | $308 | +22 (+2200.0%) |
| 80 | Farther Finance Advisors, LLC | 20 | 0.00% | $263 | NEW |
| 81 | ROTHSCHILD INVESTMENT LLC | 14 | 0.00% | $187 | +12 (+600.0%) |
| 82 | Caitong International Asset Management Co., Ltd | 9 | 0.00% | $120 | +1 (+12.5%) |
| 83 | Clearstead Advisors, LLC | 4 | 0.00% | $54 | NEW |
| 84 | SJS Investment Consulting Inc. | 2 | 0.00% | $27 | NEW |
| 85 | OSAIC HOLDINGS, INC. | 1 | 0.00% | $13 | — |
| 86 | Johnson Financial Group, Inc. | 1 | 0.00% | $14 | — |
Exited since 2026-03-31 (13 filers; largest 13 shown)
Large holders from 13D/13G (latest per reporting person, last 2 years)
Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.
| Reporting person | Form | Filed | Event | Shares | % of class |
|---|---|---|---|---|---|
| Franklin Resources, Inc. | SCHEDULE 13G/A | 2026-01-29 | 2025-12-31 | 3,751,709 | 10.6% |
| Rupert H. Johnson, Jr. | SCHEDULE 13G/A | 2026-01-29 | 2025-12-31 | 0 | 0% |
| Charles B. Johnson | SCHEDULE 13G/A | 2026-01-29 | 2025-12-31 | 0 | 0% |
| Franklin Advisers, Inc. | SCHEDULE 13G/A | 2026-01-29 | 2025-12-31 | 3,751,709 | 10.6% |
| JANUS HENDERSON GROUP PLC | SCHEDULE 13G/A | 2025-12-08 | 2025-11-28 | 3,382,836 | 9.99% |
| Janus Henderson Biotech Innovation Master Fund Ltd | SCHEDULE 13G/A | 2025-12-08 | 2025-11-28 | 2,067,781 | 6.1% |
| RA Capital Healthcare Fund, L.P. | SCHEDULE 13G | 2025-12-03 | 2025-11-07 | 1,850,000 | 5.5% |
| Peter Kolchinsky | SCHEDULE 13G | 2025-12-03 | 2025-11-07 | 1,850,000 | 5.5% |
| RA Capital Management, L.P. | SCHEDULE 13G | 2025-12-03 | 2025-11-07 | 1,850,000 | 5.5% |
| Rajeev Shah | SCHEDULE 13G | 2025-12-03 | 2025-11-07 | 1,850,000 | 5.5% |
| Averill Master Fund, Ltd. | SCHEDULE 13D/A | 2025-11-10 | 2025-11-07 | 15,237,643 | 37.8% |
| Aaron Cowen | SCHEDULE 13D/A | 2025-11-10 | 2025-11-07 | 17,761,945 | 44.1% |
| Averill Madison Master Fund, Ltd. | SCHEDULE 13D/A | 2025-11-10 | 2025-11-07 | 2,524,302 | 6.3% |
| SUVRETTA CAPITAL MANAGEMENT, LLC | SCHEDULE 13D/A | 2025-11-10 | 2025-11-07 | 17,761,945 | 44.1% |
| Daniel Mack | SCHEDULE 13G/A | 2025-05-15 | 2025-03-31 | 1,038,371 | 4.39% |
| Nantahala Capital Management, LLC | SCHEDULE 13G/A | 2025-05-15 | 2025-03-31 | 1,038,371 | 4.39% |
| Wilmot B. Harkey | SCHEDULE 13G/A | 2025-05-15 | 2025-03-31 | 1,038,371 | 4.39% |
| HBM Healthcare Investments (Cayman) Ltd. | SCHEDULE 13G/A | 2025-02-13 | 2024-12-31 | 1,041,669 | 4.5% |
Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.