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Making an investment decision in the stock market involves a certain amount of risk, so it's important to thoroughly review a company's stock before making any decisions. Stock float, number of short positions and outstanding shares are among the many factors an investor should take into account.
Investors cannot turn a blind eye to insiders as well as institutional ownership. They need to follow insider trades to determine the direction the stock is likely to take.
About 32.38% of ONC shares are held by financial institutions. BAKER BROS. ADVISORS LP is the top corporate investor, holding 8.8M shares valued at $2.67B. A 7.98% stake in BeOne Medicines Ltd. is owned by the company. FMR LLC owns 3.99M shares valued at $1.21B, which translates its holding of 3.62% of the stake in the company.
| Date | Holder | % Stake | Shares Held | Total Value ($) | Shares | % Change in Portfolio |
|---|---|---|---|---|---|---|
| Dec 31, 2025 | BAKER BROS. ADVISORS LP | 7.98% | 8.8M | 2.67B | 0 | 0 |
| Dec 31, 2025 | FMR LLC | 3.62% | 3.99M | 1.21B | 207.69K | +5.49% |
| Dec 31, 2025 | OAK HILL ADVISORS LP | 2.51% | 2.77M | 39.12M | 2.77M | +100.00% |
| Dec 31, 2025 | COMMONWEALTH EQUITY SERVICES, LLC | 1.32% | 1.46M | 20.59M | 1.46M | +100.00% |
| Dec 31, 2025 | ADVISOR GROUP HOLDINGS, INC. | 0.3% | 328.96K | 4.65M | 328.96K | +100.00% |
| Dec 31, 2025 | RAYMOND JAMES FINANCIAL INC | 0.27% | 300.92K | 4.25M | 300.92K | +100.00% |
| Dec 31, 2025 | MAN GROUP PLC | 0.23% | 248.51K | 75.5M | 39.5K | +18.90% |
| Dec 31, 2025 | ARTISAN PARTNERS LIMITED PARTNERSHIP | 0.15% | 165.24K | 50.2M | -84.6K | -33.86% |
| Dec 31, 2025 | XTX TOPCO LTD | 0.14% | 152.45K | 2.16M | 152.45K | +100.00% |
| Dec 31, 2025 | CWM, LLC | 0.12% | 135.13K | 1.91M | 135.13K | +100.00% |
| Dec 31, 2025 | PRIVATE ADVISOR GROUP, LLC | 0.1% | 108.94K | 1.54M | 108.94K | +100.00% |
| Dec 31, 2025 | JAIN GLOBAL LLC | 0.09% | 97.34K | 29.57M | 70.14K | +257.89% |
| Dec 31, 2025 | QUBE RESEARCH & TECHNOLOGIES LTD | 0.09% | 94.85K | 28.82M | 32.46K | +52.02% |
| Dec 31, 2025 | CAPITAL INTERNATIONAL SARL | 0.14% | 152.52K | 46.34M | 3.96K | +2.66% |
| Dec 31, 2025 | CAPITAL INTERNATIONAL INVESTORS | 4.64% | 5.11M | 1.55B | 67.81K | +1.34% |
| Dec 31, 2025 | PRIMECAP MANAGEMENT CO/CA/ | 4.52% | 4.98M | 1.51B | -99.88K | -1.97% |
| Dec 31, 2025 | FRANKLIN RESOURCES INC | 0.09% | 94.59K | 28.74M | 52.63K | +125.40% |
| Dec 31, 2025 | VAN ECK ASSOCIATES CORP | 0.08% | 90.01K | 27.35M | -8.58K | -8.70% |
| Dec 31, 2025 | JENNISON ASSOCIATES LLC | 0.07% | 76.44K | 23.22M | 2.84K | +3.86% |
| Dec 31, 2025 | MML INVESTORS SERVICES, LLC | 0.06% | 71.27K | 1.01M | 71.27K | +100.00% |
| Dec 31, 2025 | PATIENT SQUARE CAPITAL LP | 0.06% | 69.31K | 21.06M | 69.31K | +100.00% |
| Dec 31, 2025 | SQUAREPOINT OPS LLC | 0.06% | 68.9K | 20.93M | -930 | -1.33% |
| Dec 31, 2025 | CAPITAL INTERNATIONAL LTD /CA/ | 0.06% | 67.72K | 20.57M | 930 | +1.39% |
| Dec 31, 2025 | ADVISORS ASSET MANAGEMENT, INC. | 0.06% | 64.26K | 908.58K | 64.26K | +100.00% |
| Dec 31, 2025 | DEUTSCHE BANK AG\ | 0.06% | 60.66K | 18.43M | 30.14K | +98.78% |
| Dec 31, 2025 | ENVESTNET ASSET MANAGEMENT INC | 1.08% | 1.2M | 16.9M | 1.2M | +100.00% |
| Dec 31, 2025 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 0.05% | 56.33K | 17.11M | 592 | +1.06% |
| Dec 31, 2025 | LEGAL & GENERAL GROUP PLC | 0.05% | 54.19K | 16.46M | 163 | +0.30% |
| Dec 31, 2025 | WELLS FARGO & COMPANY/MN | 0.05% | 51.49K | 15.64M | -697 | -1.34% |
| Dec 31, 2025 | DIMENSIONAL FUND ADVISORS LP | 0.04% | 49.06K | 14.91M | 9.27K | +23.30% |
| Dec 31, 2025 | BARINGS LLC | 0.04% | 42.82K | 13.01M | -12.79K | -23.00% |
| Dec 31, 2025 | MIRAE ASSET GLOBAL INVESTMENTS CO., LTD. | 0.04% | 42.21K | 12.82M | -609 | -1.42% |
| Dec 31, 2025 | CAPITAL GROUP PRIVATE CLIENT SERVICES, INC. | 0.04% | 41.78K | 12.69M | -1.95K | -4.45% |
| Dec 31, 2025 | HEALTHINVEST PARTNERS AB | 0.04% | 40.43K | 12.28M | 10.1K | +33.29% |
| Dec 31, 2025 | SCHRODER INVESTMENT MANAGEMENT GROUP | 0.04% | 39.83K | 12.14M | 27.78K | +230.56% |
| Dec 31, 2025 | BNP PARIBAS ASSET MANAGEMENT HOLDING S.A. | 0.03% | 34.07K | 10.35M | 34.07K | +100.00% |
| Dec 31, 2025 | PANAGORA ASSET MANAGEMENT INC | 0.03% | 32.94K | 10.01M | 31.68K | +2,504.03% |
| Dec 31, 2025 | ABN AMRO INVESTMENT SOLUTIONS | 0.03% | 32.08K | 9.75M | 16.88K | +111.07% |
| Dec 31, 2025 | OPPENHEIMER ASSET MANAGEMENT INC. | 0.03% | 30.09K | 9.14M | -1.59K | -5.00% |
| Dec 31, 2025 | FIERA CAPITAL CORP | 0.03% | 29.9K | 9.08M | 4.78K | +19.04% |
| Dec 31, 2025 | THOMAS J. HERZFELD ADVISORS, INC. | 1.86% | 2.05M | 29M | 2.05M | +100.00% |
| Dec 31, 2025 | PRICE T ROWE ASSOCIATES INC /MD/ | 1.25% | 1.37M | 417.03M | -257.89K | -15.82% |
| Dec 31, 2025 | GCM GROSVENOR HOLDINGS, LLC | 1.24% | 1.37M | 19.31M | 1.37M | +100.00% |
| Dec 31, 2025 | RIVERNORTH CAPITAL MANAGEMENT, LLC | 1.21% | 1.33M | 18.85M | 1.33M | +100.00% |
| Dec 31, 2025 | HHLR ADVISORS, LTD. | 0.94% | 1.03M | 314.23M | 0 | 0 |
| Dec 31, 2025 | TEMASEK HOLDINGS (PRIVATE) LTD | 0.83% | 919.59K | 279.38M | -91.88K | -9.08% |
| Dec 31, 2025 | ALMITAS CAPITAL LLC | 0.73% | 801.78K | 11.34M | 801.78K | +100.00% |
| Dec 31, 2025 | JANE STREET GROUP, LLC | 0.66% | 730.15K | 10.32M | 730.15K | +100.00% |
| Dec 31, 2025 | NOMURA HOLDINGS INC | 0.63% | 699.58K | 9.89M | 699.58K | +100.00% |
| Dec 31, 2025 | BLACKROCK, INC. | 0.61% | 676.21K | 205.44M | 180.12K | +36.31% |
| Dec 31, 2025 | CETERA INVESTMENT ADVISERS | 0.6% | 664.19K | 9.39M | 664.19K | +100.00% |
| Dec 31, 2025 | CITADEL ADVISORS LLC | 0.48% | 533.52K | 162.09M | 497.31K | +1,373.60% |
| Dec 31, 2025 | MARSHALL WACE, LLP | 0.14% | 152.3K | 46.27M | -160.14K | -51.26% |
| Dec 31, 2025 | ARETE WEALTH ADVISORS, LLC | 0.09% | 99.33K | 1.4M | 99.33K | +100.00% |
| Dec 31, 2025 | RESOURCES INVESTMENT ADVISORS, LLC. | 0.09% | 97.13K | 1.37M | 97.13K | +100.00% |
| Dec 31, 2025 | SIREN, L.L.C. | 0.45% | 500K | 151.91M | 7.01K | +1.42% |
| Dec 31, 2025 | PATHSTONE HOLDINGS, LLC | 0.4% | 437.74K | 6.19M | 437.74K | +100.00% |
| Dec 31, 2025 | MORGAN STANLEY | 0.4% | 437.66K | 132.97M | 84.37K | +23.88% |
| Dec 31, 2025 | BANK OF AMERICA CORP /DE/ | 0.34% | 378.83K | 115.09M | 33.58K | +9.73% |
| Dec 31, 2025 | STIFEL FINANCIAL CORP | 0.33% | 369.13K | 5.22M | 369.13K | +100.00% |
| Dec 31, 2025 | CAPITAL INTERNATIONAL, INC./CA/ | 0.28% | 307.66K | 93.47M | -18.18K | -5.58% |
| Dec 31, 2025 | BAIRD FINANCIAL GROUP, INC. | 0.28% | 304.34K | 92.46M | -38.58K | -11.25% |
| Dec 31, 2025 | KESTRA ADVISORY SERVICES, LLC | 0.24% | 262.62K | 3.71M | 262.62K | +100.00% |
| Dec 31, 2025 | CANDRIAM S.C.A. | 0.18% | 197.26K | 59.93M | -15.31K | -7.20% |
| Dec 31, 2025 | NUVEEN, LLC | 0.18% | 194.12K | 58.98M | -112.39K | -36.67% |
| Dec 31, 2025 | BNP PARIBAS ARBITRAGE, SNC | 0.18% | 193.95K | 58.92M | 97.24K | +100.56% |
| Dec 31, 2025 | UBS GROUP AG | 0.14% | 152.09K | 46.21M | 47.17K | +44.96% |
| Dec 31, 2025 | GOLDMAN SACHS GROUP INC | 0.13% | 148.71K | 45.18M | 104.48K | +236.22% |
| Dec 31, 2025 | MARINER, LLC | 0.13% | 143.03K | 2.02M | 143.03K | +100.00% |
| Dec 31, 2025 | NORTH GROUND CAPITAL | 0.12% | 135.32K | 1.91M | 135.32K | +100.00% |
| Dec 31, 2025 | M&G PLC | 0.12% | 129.79K | 39.46M | 9.07K | +7.51% |
| Dec 31, 2025 | KOVACK ADVISORS, INC. | 0.07% | 81.94K | 1.16M | 81.94K | +100.00% |
| Dec 31, 2025 | FIRST TRUST ADVISORS LP | 0.11% | 125.83K | 38.23M | -13.59K | -9.74% |
| Dec 31, 2025 | 0.11% | 117.35K | 1.66M | 117.35K | +100.00% |
Among the ONC insiders holding of 17.24% of the stake in company, BAKER BROS. ADVISORS LP, director, holds the largest shares of 730.64K. LEE CHAN HENRY, SVP, General Counsel, is the second largest ONC insider with ownership of 0 shares. ROSENBERG AARON, Chief Financial Officer, stands third with possession of 0 shares of that stake.
| Insiders | Designation | Shares Held |
|---|---|---|
| BAKER BROS. ADVISORS LP | director | 730.64K |
| LEE CHAN HENRY | SVP, General Counsel | 0 |
| ROSENBERG AARON | Chief Financial Officer | 0 |
| BALL TITUS B. | Principal Accounting Officer | 0 |
| WANG LAI | Global Head of R&D | 0 |
| WU XIAOBIN | President and COO | 0 |
| SANDERS CORAZON (CORSEE) D. | director | 0 |
| WANG XIAODONG | Chair, Scientific Advisory Brd | 0 |
| OYLER JOHN | Chief Executive Officer | 0 |
| Date | Insider | Type | Cost | Shares | Value ($) | Shares Total |
|---|---|---|---|---|---|---|
| Feb 04, 2026 | LEE CHAN HENRY | SALE | 350.00 | 996 | 348.6K | 0 |
| Jan 07, 2026 | LEE CHAN HENRY | SALE | 331.76 | 664 | 220.29K | 0 |
| Dec 16, 2025 | OYLER JOHN | SALE | 305.24 | 40 | 12.21K | 0 |
| Dec 15, 2025 | OYLER JOHN | SALE | 314.92 | 1.19K | 376.01K | 24.37K |
| Dec 11, 2025 | LEE CHAN HENRY | SALE | 325.00 | 332 | 107.9K | 0 |
| Dec 10, 2025 | LEE CHAN HENRY | SALE | 318.28 | 332 | 105.67K | 0 |
| Nov 26, 2025 | SANDERS CORAZON (CORSEE) D. | SALE | 342.47 | 804 | 275.35K | 0 |
| Nov 17, 2025 | WU XIAOBIN | SALE | 382.32 | 10 | 3.82K | 0 |
| Nov 13, 2025 | WU XIAOBIN | SALE | 381.05 | 1.77K | 674.08K | 0 |
| Nov 12, 2025 | LEE CHAN HENRY | SALE | 350.00 | 332 | 116.2K | 0 |
| Nov 12, 2025 | WU XIAOBIN | SALE | 362.07 | 154 | 55.76K | 6.01K |
| Oct 08, 2025 | LEE CHAN HENRY | SALE | 351.12 | 4.16K | 1.46M | 0 |
| Sep 16, 2025 | OYLER JOHN | SALE | 327.78 | 400 | 131.11K | 0 |
| Sep 10, 2025 | LEE CHAN HENRY | SALE | 327.93 | 500 | 163.97K | 0 |
| Sep 09, 2025 | WANG LAI | SALE | 350.06 | 5K | 1.75M | 0 |
| Sep 05, 2025 | SANDERS CORAZON (CORSEE) D. | SALE | 337.00 | 2.67K | 898.11K | 0 |
| Sep 02, 2025 | BALL TITUS B. | SALE | 326.76 | 122 | 39.86K | 0 |
| Aug 14, 2025 | WU XIAOBIN | SALE | 308.03 | 600 | 184.82K | 0 |
| Aug 13, 2025 | LEE CHAN HENRY | SALE | 301.00 | 3.85K | 1.16M | 0 |
| Aug 13, 2025 | WU XIAOBIN | SALE | 307.38 | 9.62K | 2.96M | 0 |
| Aug 01, 2025 | ROSENBERG AARON | SALE | 290.47 | 1.19K | 345.66K | 0 |
| Jul 30, 2025 | LEE CHAN HENRY | SALE | 304.60 | 920 | 280.23K | 0 |
| Jul 30, 2025 | WANG LAI | SALE | 305.00 | 259 | 79K | 0 |
| Jul 29, 2025 | WANG LAI | SALE | 304.16 | 800 | 243.33K | 259 |
| Jul 09, 2025 | OYLER JOHN | SALE | 254.83 | 1.55K | 395.76K | 0 |
| Jun 24, 2025 | WANG XIAODONG | SALE | 267.81 | 100 | 26.78K | 0 |
| Jun 23, 2025 | OYLER JOHN | SALE | 262.90 | 100 | 26.29K | 0 |
| Jun 23, 2025 | WANG LAI | SALE | 260.00 | 1.03K | 267.28K | 0 |
| Jun 23, 2025 | WU XIAOBIN | SALE | 260.00 | 1.36K | 354.38K | 0 |
| Jun 17, 2025 | WANG LAI | SALE | 251.37 | 470 | 118.14K | 0 |
| Jun 17, 2025 | WU XIAOBIN | SALE | 250.87 | 630 | 158.05K | 0 |
| Jun 17, 2025 | OYLER JOHN | SALE | 256.49 | 1.46K | 374.47K | 0 |
| Jun 16, 2025 | WANG LAI | SALE | 266.40 | 1.18K | 313.56K | 470 |
| Jun 16, 2025 | LEE CHAN HENRY | SALE | 266.50 | 422 | 112.46K | 0 |
| Jun 16, 2025 | OYLER JOHN | SALE | 266.05 | 3.68K | 979.05K | 1.46K |
| Jun 16, 2025 | WU XIAOBIN | SALE | 266.22 | 100 | 26.62K | 630 |
| Jun 11, 2025 | BALL TITUS B. | SALE | 258.36 | 134 | 34.62K | 0 |
| Jun 10, 2025 | WANG XIAODONG | SALE | 264.85 | 100 | 26.49K | 0 |
| Jun 06, 2025 | LEE CHAN HENRY | SALE | 256.79 | 230 | 59.06K | 0 |
| Jun 06, 2025 | WU XIAOBIN | SALE | 255.77 | 234 | 59.85K | 0 |
| Jun 06, 2025 | OYLER JOHN | SALE | 255.74 | 400 | 102.3K | 0 |
| Jun 06, 2025 | WANG LAI | SALE | 255.30 | 300 | 76.59K | 0 |
| Feb 28, 2025 | BAKER BROS. ADVISORS LP | SALE | 260.00 | 60.85K | 15.82M | 730.64K |