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 2026-08-04)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | IKT · NASDAQ | 139,535,900 | 124,380,370 | 89.1% | 105 | 45719W205 |
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 (105 of 105 · 45719W205)
change vs 2026-03-31| # | Filer | Shares | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | Sands Capital Alternatives, LLC | 13,018,965 | 9.33% | $26.4M | — |
| 2 | Soleus Capital Management, L.P. | 10,875,000 | 7.79% | $22.1M | — |
| 3 | Trails Edge Capital Partners, LP | 9,051,318 | 6.49% | $18.4M | +993,973 (+12.3%) |
| 4 | Fairmount Funds Management LLC | 8,625,000 | 6.18% | $17.5M | — |
| 5 | BlackRock, Inc. | 7,768,057 | 5.57% | $15.8M | +1,464,624 (+23.2%) |
| 6 | Kalehua Capital Management LLC | 7,643,780 | 5.48% | $15.5M | +1,149,282 (+17.7%) |
| 7 | ADAR1 Capital Management, LLC | 7,387,205 | 5.29% | $15.0M | +780,633 (+11.8%) |
| 8 | Blackstone Inc. | 5,938,276 | 4.26% | $12.1M | — |
| 9 | Siren, L.L.C. | 5,850,000 | 4.19% | $11.9M | — |
| 10 | Nantahala Capital Management, LLC | 5,403,726 | 3.87% | $11.0M | +2,701,863 (+100.0%) |
| 11 | Commodore Capital LP | 5,397,488 | 3.87% | $11.0M | — |
| 12 | VANGUARD CAPITAL MANAGEMENT LLC | 4,935,354 | 3.54% | $10.0M | +484,689 (+10.9%) |
| 13 | MILLENNIUM MANAGEMENT LLC | 4,028,102 | 2.89% | $8.2M | +1,100,025 (+37.6%) |
| 14 | Saturn V Capital Management LP | 3,869,056 | 2.77% | $7.9M | +5,611 (+0.1%) |
| 15 | Spruce Street Capital LP | 3,581,603 | 2.57% | $7.3M | — |
| 16 | Squadron Capital Management LLC | 3,000,000 | 2.15% | $6.1M | -500,000 (-14.3%) |
| 17 | GEODE CAPITAL MANAGEMENT, LLC | 2,607,129 | 1.87% | $5.3M | +436,943 (+20.1%) |
| 18 | STATE STREET CORP | 1,909,101 | 1.37% | $3.9M | +223,285 (+13.2%) |
| 19 | SummitTX Capital, L.P. | 1,780,262 | 1.28% | $3.6M | +255,726 (+16.8%) |
| 20 | Integral Health Asset Management, LLC | 1,350,000 | 0.97% | $2.7M | — |
| 21 | NORTHERN TRUST CORP | 878,585 | 0.63% | $1.8M | +159,785 (+22.2%) |
| 22 | VANGUARD PORTFOLIO MANAGEMENT LLC | 809,490 | 0.58% | $1.6M | +191,760 (+31.0%) |
| 23 | TWO SIGMA INVESTMENTS, LP | 806,264 | 0.58% | $1.6M | -41,347 (-4.9%) |
| 24 | SPHERA FUNDS MANAGEMENT LTD. | 649,309 | 0.47% | $1.3M | NEW |
| 25 | VANGUARD FIDUCIARY TRUST CO | 607,260 | 0.44% | $1.2M | +40,261 (+7.1%) |
| 26 | Kennondale Capital Management LLC | 565,983 | 0.41% | $1.1M | NEW |
| 27 | Pathstone Holdings, LLC | 510,596 | 0.37% | $1.0M | NEW |
| 28 | AQR CAPITAL MANAGEMENT LLC | 468,197 | 0.34% | $950K | +296,184 (+172.2%) |
| 29 | Nuveen, LLC | 425,492 | 0.30% | $864K | -46,907 (-9.9%) |
| 30 | Stonepine Capital Management, LLC | 396,179 | 0.28% | $804K | -561,023 (-58.6%) |
| 31 | Seven Fleet Capital Management LP | 346,900 | 0.25% | $704K | +21,300 (+6.5%) |
| 32 | JPMORGAN CHASE & CO | 316,574 | 0.23% | $611K | -11,944 (-3.6%) |
| 33 | Bank of New York Mellon Corp | 303,126 | 0.22% | $615K | +89,918 (+42.2%) |
| 34 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 275,041 | 0.20% | $558K | +39,627 (+16.8%) |
| 35 | Rangeley Capital, LLC | 220,000 | 0.16% | $447K | — |
| 36 | UBS Group AG | 204,654 | 0.15% | $415K | -23,497 (-10.3%) |
| 37 | BLAIR WILLIAM & CO/IL | 156,080 | 0.11% | $317K | -1,908 (-1.2%) |
| 38 | ALPS ADVISORS INC | 134,002 | 0.10% | $272K | NEW |
| 39 | JONES FINANCIAL COMPANIES LLLP | 128,491 | 0.09% | $245K | +96,291 (+299.0%) |
| 40 | DEUTSCHE BANK AG\ | 126,677 | 0.09% | $257K | +4,235 (+3.5%) |
| 41 | RHUMBLINE ADVISERS | 120,014 | 0.09% | $244K | +61,297 (+104.4%) |
| 42 | MORGAN STANLEY | 114,006 | 0.08% | $231K | -50,253 (-30.6%) |
| 43 | BANK OF AMERICA CORP /DE/ | 108,024 | 0.08% | $219K | -214,680 (-66.5%) |
| 44 | FMR LLC | 103,727 | 0.07% | $211K | +31,764 (+44.1%) |
| 45 | WELLS FARGO & COMPANY/MN | 101,841 | 0.07% | $207K | +61,310 (+151.3%) |
| 46 | PRICE T ROWE ASSOCIATES INC /MD/ | 99,632 | 0.07% | $203K | +48,758 (+95.8%) |
| 47 | CITADEL ADVISORS LLC | 74,349 | 0.05% | $151K | -1,028,236 (-93.3%) |
| 48 | IEQ CAPITAL, LLC | 68,511 | 0.05% | $139K | +52,664 (+332.3%) |
| 49 | MetLife Investment Management, LLC | 62,524 | 0.04% | $127K | -389 (-0.6%) |
| 50 | Invesco Ltd. | 62,103 | 0.04% | $126K | +27,746 (+80.8%) |
| 51 | CITIGROUP INC | 56,090 | 0.04% | $114K | +51,058 (+1014.7%) |
| 52 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 55,905 | 0.04% | $113K | +5,621 (+11.2%) |
| 53 | Russell Investments Group, Ltd. | 53,625 | 0.04% | $109K | +47,108 (+722.8%) |
| 54 | GOLDMAN SACHS GROUP INC | 50,170 | 0.04% | $102K | -99,687 (-66.5%) |
| 55 | AMERICAN CENTURY COMPANIES INC | 48,998 | 0.04% | $99K | NEW |
| 56 | Quadrature Capital Ltd | 48,413 | 0.03% | $98K | +12,351 (+34.2%) |
| 57 | SEI INVESTMENTS CO | 47,962 | 0.03% | $97K | — |
| 58 | NEW YORK STATE COMMON RETIREMENT FUND | 47,900 | 0.03% | $97K | — |
| 59 | Abel Hall, LLC | 46,352 | 0.03% | $94K | +31,789 (+218.3%) |
| 60 | TRANSCEND CAPITAL ADVISORS, LLC | 45,298 | 0.03% | $92K | +29,191 (+181.2%) |
| 61 | Police & Firemen's Retirement System of New Jersey | 41,594 | 0.03% | $84K | +23,956 (+135.8%) |
| 62 | Cerity Partners LLC | 38,014 | 0.03% | $77K | NEW |
| 63 | Vanguard Global Advisers, LLC | 36,546 | 0.03% | $74K | — |
| 64 | XTX Topco Ltd | 34,339 | 0.02% | $70K | -4,575 (-11.8%) |
| 65 | INTECH INVESTMENT MANAGEMENT LLC | 28,626 | 0.02% | $58K | +1,742 (+6.5%) |
| 66 | CAXTON CORP | 28,453 | 0.02% | $58K | — |
| 67 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | 27,054 | 0.02% | $55K | -1,719 (-6.0%) |
| 68 | VOYA INVESTMENT MANAGEMENT LLC | 25,286 | 0.02% | $51K | +8,352 (+49.3%) |
| 69 | Mariner, LLC | 23,139 | 0.02% | $47K | NEW |
| 70 | Sanctuary Advisors, LLC | 22,801 | 0.02% | $46K | NEW |
| 71 | NEUBERGER BERMAN GROUP LLC | 21,293 | 0.02% | $43K | NEW |
| 72 | BNP PARIBAS FINANCIAL MARKETS | 20,578 | 0.01% | $42K | -2,166 (-9.5%) |
| 73 | Lynx1 Capital Management LP | 20,000 | 0.01% | $41K | NEW |
| 74 | BARCLAYS PLC | 19,725 | 0.01% | $40K | -1,623 (-7.6%) |
| 75 | WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | 18,759 | 0.01% | $38K | NEW |
| 76 | PRUDENTIAL FINANCIAL INC | 18,290 | 0.01% | $37K | +3,110 (+20.5%) |
| 77 | MERCER GLOBAL ADVISORS INC /ADV | 16,781 | 0.01% | $34K | NEW |
| 78 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 16,242 | 0.01% | $33K | -18,858 (-53.7%) |
| 79 | ProShare Advisors LLC | 15,895 | 0.01% | $32K | +358 (+2.3%) |
| 80 | Spark Investment Management LLC | 15,500 | 0.01% | $31K | NEW |
| 81 | ALLIANCEBERNSTEIN L.P. | 15,320 | 0.01% | $26K | NEW |
| 82 | Tower Research Capital LLC (TRC) | 15,204 | 0.01% | $31K | -2,150 (-12.4%) |
| 83 | Squarepoint Ops LLC | 12,854 | 0.01% | $26K | -18,135 (-58.5%) |
| 84 | ROYAL BANK OF CANADA | 12,199 | 0.01% | $24K | +10,585 (+655.8%) |
| 85 | Legal & General Group Plc | 12,078 | 0.01% | $25K | +2,674 (+28.4%) |
| 86 | XPONANCE LLC | 11,550 | 0.01% | $23K | NEW |
| 87 | VICTORY CAPITAL MANAGEMENT INC | 11,504 | 0.01% | $23K | +952 (+9.0%) |
| 88 | Ameritas Investment Partners, Inc. | 11,018 | 0.01% | $22K | +4,844 (+78.5%) |
| 89 | Arax Advisory Partners | 7,121 | 0.01% | $14K | +7,072 (+14432.7%) |
| 90 | Pinnacle Wealth Planning Services, Inc. | 5,400 | 0.00% | $11K | — |
| 91 | NISA INVESTMENT ADVISORS, LLC | 5,200 | 0.00% | $11K | NEW |
| 92 | Sterling Capital Management LLC | 2,447 | 0.00% | $5K | -832 (-25.4%) |
| 93 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 1,501 | 0.00% | $3K | -4,382 (-74.5%) |
| 94 | Allworth Financial LP | 1,140 | 0.00% | $2K | +757 (+197.7%) |
| 95 | EverSource Wealth Advisors, LLC | 857 | 0.00% | $2K | +644 (+302.3%) |
| 96 | Essential Partners LLC | 646 | 0.00% | $1K | -1,956 (-75.2%) |
| 97 | True Wealth Design, LLC | 499 | 0.00% | $1K | +456 (+1060.5%) |
| 98 | ROTHSCHILD INVESTMENT LLC | 436 | 0.00% | $885 | +408 (+1457.1%) |
| 99 | Farther Finance Advisors, LLC | 370 | 0.00% | $750 | +301 (+436.2%) |
| 100 | Caitong International Asset Management Co., Ltd | 148 | 0.00% | $300 | -113 (-43.3%) |
| 101 | PNC Financial Services Group, Inc. | 81 | 0.00% | $164 | — |
| 102 | Quarry LP | 55 | 0.00% | $112 | NEW |
| 103 | SJS Investment Consulting Inc. | 32 | 0.00% | $65 | +23 (+255.6%) |
| 104 | IFP Advisors, Inc | 23 | 0.00% | $47 | +20 (+666.7%) |
| 105 | Clearstead Advisors, LLC | 6 | 0.00% | $13 | NEW |
Exited since 2026-03-31 (17 filers; largest 17 shown)
| PERCEPTIVE ADVISORS LLC | −2,315,000 |
| Ally Bridge Group (NY) LLC | −1,325,000 |
| ALGERT GLOBAL LLC | −133,830 |
| Point72 Asset Management, L.P. | −40,383 |
| FIFTH LANE CAPITAL, LP | −24,896 |
| Virtu Financial LLC | −24,607 |
| CCG WEALTH MANAGEMENT, LLC | −24,118 |
| Balyasny Asset Management L.P. | −17,674 |
| RENAISSANCE TECHNOLOGIES LLC | −16,500 |
| CWM, LLC | −16,419 |
| SG Americas Securities, LLC | −15,480 |
| Focus Partners Advisor Solutions, LLC | −11,886 |
| U.S. Capital Wealth Advisors, LLC | −10,000 |
| OSAIC HOLDINGS, INC. | −4,000 |
| GAMMA Investing LLC | −411 |
| MAI Capital Management | −91 |
| Sunbelt Securities, Inc. | −28 |
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 |
|---|---|---|---|---|---|
| Nantahala Capital Management, LLC | SCHEDULE 13G/A | 2026-08-14 | 2026-06-30 | 5,810,487 | 4.3% |
| Daniel Mack | SCHEDULE 13G/A | 2026-08-14 | 2026-06-30 | 5,810,487 | 4.3% |
| Wilmot B. Harkey | SCHEDULE 13G/A | 2026-08-14 | 2026-06-30 | 5,810,487 | 4.3% |
| Joseph Edelman | SCHEDULE 13G/A | 2026-08-14 | 2026-06-30 | 10,320,875 | 6.9% |
| Perceptive Life Sciences Master Fund, Ltd. | SCHEDULE 13G/A | 2026-08-14 | 2026-06-30 | 10,320,875 | 6.9% |
| Perceptive Advisors LLC | SCHEDULE 13G/A | 2026-08-14 | 2026-06-30 | 10,320,875 | 6.9% |
| Sands Capital Alternatives, LLC | SCHEDULE 13G/A | 2026-08-13 | 2026-06-30 | 13,018,965 | 9.3% |
| Sands Capital Life Sciences Pulse Fund II, L.P. | SCHEDULE 13G/A | 2026-08-13 | 2026-06-30 | 13,018,965 | 9.3% |
| SANDS FRANK M. | SCHEDULE 13G/A | 2026-08-13 | 2026-06-30 | 13,018,965 | 9.3% |
| Rajeev Shah | SCHEDULE 13G/A | 2026-07-31 | 2026-07-29 | 14,653,994 | 9.9% |
| RA Capital Management, L.P. | SCHEDULE 13G/A | 2026-07-31 | 2026-07-29 | 14,653,994 | 9.9% |
| RA Capital Healthcare Fund, L.P. | SCHEDULE 13G/A | 2026-07-31 | 2026-07-29 | 14,653,994 | 9.9% |
| Peter Kolchinsky | SCHEDULE 13G/A | 2026-07-31 | 2026-07-29 | 14,653,994 | 9.9% |
| BlackRock, Inc. | SCHEDULE 13G | 2026-07-28 | 2026-06-30 | 7,768,004 | 5.9% |
| Michael Kramarz | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 14,054,940 | 9.9% |
| Commodore Capital LP | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 14,054,940 | 9.9% |
| Commodore Capital Master LP | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 14,054,940 | 9.9% |
| Ortav Yehudai | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 8,057,345 | 6.1% |
| Trails Edge Biotechnology Master Fund, LP | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 8,057,345 | 6.1% |
| Daniel Schneeberger | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 13,860,028 | 9.9% |
| ADAR1 Capital Management, LLC | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 13,860,028 | 9.9% |
| Trails Edge Capital Partners, LP | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 8,057,345 | 6.1% |
| ADAR1 Capital Management GP, LLC | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 11,832,998 | 8.5% |
| Robert Egen Atkinson | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 14,054,940 | 9.9% |
| Fairmount Funds Management LLC | SCHEDULE 13G/A | 2026-02-17 | 2025-12-31 | 12,461,101 | 9.9% |
| Tomas Kiselak | SCHEDULE 13G/A | 2026-02-17 | 2025-12-31 | 12,461,101 | 9.9% |
| Peter Harwin | SCHEDULE 13G/A | 2026-02-17 | 2025-12-31 | 12,461,101 | 9.9% |
| Fairmount Healthcare Fund II L.P. | SCHEDULE 13G/A | 2026-02-17 | 2025-12-31 | 12,461,101 | 9.9% |
| Point72 Capital Advisors, Inc. | SCHEDULE 13G/A | 2025-02-14 | 2024-12-31 | 0 | 0% |
| Point72 Asset Management, L.P. | SCHEDULE 13G/A | 2025-02-14 | 2024-12-31 | 0 | 0% |
| Steven A. Cohen | SCHEDULE 13G/A | 2025-02-14 | 2024-12-31 | 0 | 0% |
| Steven Boyd | SCHEDULE 13G/A | 2025-02-14 | 2024-12-31 | 3,529,006 | 4.99% |
| Armistice Capital, LLC | SCHEDULE 13G/A | 2025-02-14 | 2024-12-31 | 3,529,006 | 4.99% |
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.