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-Q filed 2026-08-11, as of 2026-07-31)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | AARD · NASDAQ | 21,884,846 | 9,547,042 | 43.6% | 71 | 002942100 |
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 (71 of 71 · 002942100)
change vs 2026-03-31| # | Filer | Shares | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | Decheng Capital LLC | 3,917,299 | 17.90% | $22.6M | — |
| 2 | CITADEL ADVISORS LLC | 1,283,166 | 5.86% | $7.4M | +40,389 (+3.2%) |
| 3 | Laurion Capital Management LP | 1,034,459 | 4.73% | $6.0M | — |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 562,877 | 2.57% | $3.2M | +8,776 (+1.6%) |
| 5 | AQR CAPITAL MANAGEMENT LLC | 480,249 | 2.19% | $2.8M | +345,754 (+257.1%) |
| 6 | EcoR1 Capital, LLC | 396,194 | 1.81% | $2.3M | NEW |
| 7 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 300,000 | 1.37% | $1.7M | — |
| 8 | CANTOR FITZGERALD, L. P. | 233,164 | 1.07% | $1.3M | +166,482 (+249.7%) |
| 9 | BlackRock, Inc. | 187,045 | 0.85% | $1.1M | -605,526 (-76.4%) |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 149,844 | 0.68% | $864K | -159,605 (-51.6%) |
| 11 | TWO SIGMA INVESTMENTS, LP | 108,377 | 0.50% | $624K | -54,978 (-33.7%) |
| 12 | RAYMOND JAMES FINANCIAL INC | 79,284 | 0.36% | $457K | +68,394 (+628.0%) |
| 13 | VANGUARD FIDUCIARY TRUST CO | 75,172 | 0.34% | $433K | -8,038 (-9.7%) |
| 14 | Woodline Partners LP | 72,429 | 0.33% | $417K | — |
| 15 | MILLENNIUM MANAGEMENT LLC | 69,948 | 0.32% | $403K | -28,386 (-28.9%) |
| 16 | STATE STREET CORP | 59,273 | 0.27% | $341K | -140,049 (-70.3%) |
| 17 | J. Goldman & Co LP | 40,500 | 0.19% | $233K | NEW |
| 18 | IEQ CAPITAL, LLC | 38,382 | 0.18% | $221K | +21,897 (+132.8%) |
| 19 | UBS Group AG | 35,639 | 0.16% | $205K | -122,249 (-77.4%) |
| 20 | MORGAN STANLEY | 30,177 | 0.14% | $174K | +12,615 (+71.8%) |
| 21 | NORTHERN TRUST CORP | 28,080 | 0.13% | $162K | -60,519 (-68.3%) |
| 22 | CITIGROUP INC | 26,299 | 0.12% | $151K | -19,966 (-43.2%) |
| 23 | Cresset Asset Management, LLC | 24,033 | 0.11% | $138K | -19,226 (-44.4%) |
| 24 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 24,025 | 0.11% | $138K | NEW |
| 25 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 24,000 | 0.11% | $138K | -3,000 (-11.1%) |
| 26 | Point72 Asset Management, L.P. | 22,872 | 0.10% | $132K | NEW |
| 27 | JANE STREET GROUP, LLC | 22,464 | 0.10% | $129K | NEW |
| 28 | Mariner, LLC | 21,784 | 0.10% | $125K | NEW |
| 29 | SMITH, MOORE & CO. | 20,000 | 0.09% | $115K | NEW |
| 30 | XTX Topco Ltd | 19,888 | 0.09% | $115K | -27 (-0.1%) |
| 31 | MARSHALL WACE, LLP | 19,076 | 0.09% | $110K | NEW |
| 32 | FMR LLC | 18,904 | 0.09% | $109K | +9,946 (+111.0%) |
| 33 | SIMPLEX TRADING, LLC | 15,917 | 0.07% | $92K | +11,674 (+275.1%) |
| 34 | PRELUDE CAPITAL MANAGEMENT, LLC | 12,426 | 0.06% | $72K | -18,211 (-59.4%) |
| 35 | GOLDMAN SACHS GROUP INC | 12,241 | 0.06% | $71K | -7,163 (-36.9%) |
| 36 | MERCER GLOBAL ADVISORS INC /ADV | 11,464 | 0.05% | $66K | NEW |
| 37 | Cerity Partners LLC | 10,771 | 0.05% | $62K | NEW |
| 38 | WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | 10,434 | 0.05% | $79K | NEW |
| 39 | Abel Hall, LLC | 10,066 | 0.05% | $58K | NEW |
| 40 | Arax Advisory Partners | 8,374 | 0.04% | $48K | +8,350 (+34791.7%) |
| 41 | Vanguard Global Advisers, LLC | 5,893 | 0.03% | $34K | — |
| 42 | Steward Partners Investment Advisory, LLC | 4,150 | 0.02% | $24K | — |
| 43 | China Universal Asset Management Co., Ltd. | 3,472 | 0.02% | $20K | -392 (-10.1%) |
| 44 | Tower Research Capital LLC (TRC) | 2,501 | 0.01% | $14K | -2,966 (-54.3%) |
| 45 | BARCLAYS PLC | 2,259 | 0.01% | $13K | -1,362 (-37.6%) |
| 46 | JPMORGAN CHASE & CO | 1,784 | 0.01% | $9K | -4,833 (-73.0%) |
| 47 | BNP PARIBAS FINANCIAL MARKETS | 1,308 | 0.01% | $8K | -1,926 (-59.6%) |
| 48 | Russell Investments Group, Ltd. | 1,239 | 0.01% | $7K | +770 (+164.2%) |
| 49 | Stone House Investment Management, LLC | 1,000 | 0.00% | $6K | — |
| 50 | Mirae Asset Global Investments Co., Ltd. | 976 | 0.00% | $6K | -160 (-14.1%) |
| 51 | Allworth Financial LP | 813 | 0.00% | $5K | +606 (+292.8%) |
| 52 | EverSource Wealth Advisors, LLC | 774 | 0.00% | $4K | +473 (+157.1%) |
| 53 | FEDERATED HERMES, INC. | 646 | 0.00% | $4K | -437 (-40.4%) |
| 54 | Essential Partners LLC | 509 | 0.00% | $3K | -559 (-52.3%) |
| 55 | GF FUND MANAGEMENT CO. LTD. | 452 | 0.00% | $3K | -31 (-6.4%) |
| 56 | IFP Advisors, Inc | 447 | 0.00% | $3K | +426 (+2028.6%) |
| 57 | Hilton Head Capital Partners, LLC | 434 | 0.00% | $3K | — |
| 58 | GAMMA Investing LLC | 388 | 0.00% | $2K | NEW |
| 59 | PNC Financial Services Group, Inc. | 349 | 0.00% | $2K | +321 (+1146.4%) |
| 60 | ROTHSCHILD INVESTMENT LLC | 265 | 0.00% | $2K | +188 (+244.2%) |
| 61 | ROYAL BANK OF CANADA | 169 | 0.00% | $1K | -11 (-6.1%) |
| 62 | True Wealth Design, LLC | 162 | 0.00% | $934 | +113 (+230.6%) |
| 63 | Farther Finance Advisors, LLC | 153 | 0.00% | $867 | +125 (+446.4%) |
| 64 | NISA INVESTMENT ADVISORS, LLC | 70 | 0.00% | $403 | NEW |
| 65 | Fortitude Family Office, LLC | 56 | 0.00% | $323 | NEW |
| 66 | HARBOUR INVESTMENTS, INC. | 53 | 0.00% | $304 | +33 (+165.0%) |
| 67 | Wealth Enhancement Trust Services, Inc. | 48 | 0.00% | $276 | NEW |
| 68 | Clearstead Advisors, LLC | 39 | 0.00% | $226 | NEW |
| 69 | SJS Investment Consulting Inc. | 16 | 0.00% | $93 | +14 (+700.0%) |
| 70 | Transamerica Financial Advisors, LLC | 14 | 0.00% | $80 | — |
| 71 | JPL Wealth Management, LLC | 7 | 0.00% | $41 | NEW |
Exited since 2026-03-31 (26 filers; largest 25 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 |
|---|---|---|---|---|---|
| Jane Wu Lee | SCHEDULE 13G | 2025-05-15 | 2025-03-31 | 2,983,724 | 13.7% |
| Tien-Li Lee | SCHEDULE 13G | 2025-05-15 | 2025-03-31 | 2,983,724 | 13.7% |
| Citadel Securities GP LLC | SCHEDULE 13G | 2025-02-24 | 2025-02-14 | 40,596 | 0.2% |
| Decheng Capital Global Life Sciences Fund IV, L.P. | SCHEDULE 13G | 2025-02-24 | 2025-02-14 | 2,958,887 | 13.8% |
| Christopher Michael Ho | SCHEDULE 13G | 2025-02-24 | 2025-02-12 | 1,694,894 | 7.92% |
| Citadel Securities Group LP | SCHEDULE 13G | 2025-02-24 | 2025-02-14 | 40,596 | 0.2% |
| Citadel Securities LLC | SCHEDULE 13G | 2025-02-24 | 2025-02-14 | 40,596 | 0.2% |
| Decheng Capital Global Healthcare Fund (Master), LP | SCHEDULE 13G | 2025-02-24 | 2025-02-14 | 958,412 | 4.5% |
| Decheng Capital Global Healthcare GP, LLC | SCHEDULE 13G | 2025-02-24 | 2025-02-14 | 958,412 | 4.5% |
| Citadel GP LLC | SCHEDULE 13G | 2025-02-24 | 2025-02-14 | 1,152,375 | 5.4% |
| Decheng Capital Management IV (Cayman), LLC | SCHEDULE 13G | 2025-02-24 | 2025-02-14 | 2,958,887 | 13.8% |
| Dr. Finian Tan | SCHEDULE 13G | 2025-02-24 | 2025-02-12 | 1,828,258 | 8.69% |
| Citadel Advisors LLC | SCHEDULE 13G | 2025-02-24 | 2025-02-14 | 1,152,375 | 5.4% |
| Kenneth Griffin | SCHEDULE 13G | 2025-02-24 | 2025-02-14 | 1,192,971 | 5.6% |
| Citadel Advisors Holdings LP | SCHEDULE 13G | 2025-02-24 | 2025-02-14 | 1,152,375 | 5.4% |
| Vickers Venture Fund VI Pte. Ltd. | SCHEDULE 13G | 2025-02-24 | 2025-02-12 | 2,050,902 | 9.58% |
| Xiangmin Cui | SCHEDULE 13G | 2025-02-24 | 2025-02-14 | 3,917,299 | 18.3% |
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.