CytomX Therapeutics, Inc.
CTMX- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001501989
No open-market purchases or sales by CytomX Therapeutics, Inc. insiders were filed in the last 90 days; 178 institutions reported holding it in 13F filings for Q2 2026, worth $799.0M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in CytomX Therapeutics, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 179
- +58 vs. Q4 2025
- Shares held
- 193.9M
- +58.3M (+43.0%) vs. Q4 2025
- Total value
- $911.2M
- +$333.5M (+57.7%) vs. Q4 2025
- New holders
- 77
- 59 more added
- Sold out
- 19
- 28 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CTMX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 178 | $799.0M |
| Q1 2026 | 179 | $911.2M |
| Q4 2025 | 122 | $613.9M |
| Q3 2025 | 103 | $438.4M |
| Q2 2025 | 83 | $302.6M |
| Q1 2025 | 66 | $28.8M |
| Q4 2024 | 70 | $48.1M |
| Q3 2024 | 69 | $60.4M |
| Q2 2024 | 74 | $61.9M |
| Q1 2024 | 88 | $97.1M |
| Q4 2023 | 68 | $50.6M |
| Q3 2023 | 62 | $41.8M |
| Q2 2023 | 67 | $58.7M |
| Q1 2023 | 76 | $53.7M |
| Q4 2022 | 81 | $57.5M |
| Q3 2022 | 84 | $52.6M |
| Q2 2022 | 99 | $83.4M |
| Q1 2022 | 119 | $143.4M |
| Q4 2021 | 110 | $236.5M |
| Q3 2021 | 114 | $274.8M |
| Q2 2021 | 122 | $358.9M |
| Q1 2021 | 126 | $422.2M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding CytomX Therapeutics, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 31,955,637 | $150.2M | 0.01% | +7,267,528+29.4% | Added |
| Kynam Capital Management, LP | 15,013,093 | $70.6M | 4.48% | +6,047,016+67.4% | Added |
| Bank of America Corp | 10,202,785 | $48.0M | 0.00% | +9,326,480+1,064.3% | Added |
| Perceptive Advisors LLC | 10,098,824 | $47.5M | 0.94% | +418,639+4.3% | Added |
| VR Adviser, LLC | 9,982,124 | $46.9M | 1.75% | −5,579,376−35.9% | Reduced |
| Vanguard Capital Management LLC | 8,733,118 | $41.0M | 0.00% | +8,733,118 | New |
| Point72 Asset Management, L.P. | 7,875,390 | $37.0M | 0.06% | +2,685,852+51.8% | Added |
| State Street Corp | 5,663,408 | $26.6M | 0.00% | +522,477+10.2% | Added |
| Citadel Advisors LLC | 5,406,193 | $25.4M | 0.02% | +5,063,889+1,479.4% | Added |
| BlackRock, Inc. | 5,228,280 | $24.6M | 0.00% | +1,558,887+42.5% | Added |
| Baker Bros. Advisors LP | 4,975,826 | $23.4M | 0.13% | +725,000+17.1% | Added |
| Elmind Capital, LP | 4,550,000 | $21.4M | 6.07% | +3,850,000+550.0% | Added |
| Nextech Invest, Ltd. | 4,449,932 | $20.9M | 1.47% | +4,449,932 | New |
| Marshall Wace, LLP | 4,138,176 | $19.4M | 0.02% | +2,981,240+257.7% | Added |
| Millennium Management LLC | 3,660,190 | $17.2M | 0.01% | +3,370,537+1,163.6% | Added |
| Wellington Management Group LLP | 3,582,985 | $16.8M | 0.00% | +3,582,985 | New |
| Siren, L.L.C. | 3,457,711 | $16.3M | 0.45% | +3,457,711 | New |
| ADAR1 Capital Management, LLC | 3,410,190 | $16.0M | 0.96% | −772,579−18.5% | Reduced |
| Eversept Partners, LP | 3,188,514 | $15.0M | 0.99% | +681,424+27.2% | Added |
| UBS Group AG | 3,120,155 | $14.7M | 0.00% | +2,749,416+741.6% | Added |
| Jefferies Financial Group Inc. | 3,067,864 | $14.4M | 0.18% | +3,044,100+12,809.7% | Added |
| Two Sigma Investments, LP | 2,710,156 | $12.7M | 0.01% | +1,149,401+73.6% | Added |
| Qube Research & Technologies Ltd | 2,249,583 | $10.6M | 0.02% | +1,188,455+112.0% | Added |
| Geode Capital Management, LLC | 2,066,612 | $9.72M | 0.00% | +540,946+35.5% | Added |
| Woodline Partners LP | 2,000,825 | $9.40M | 0.04% | −336,180−14.4% | Reduced |
| Dimensional Fund Advisors LP | 1,930,920 | $9.07M | 0.00% | +641,264+49.7% | Added |
| Susquehanna International Group, LLP | 1,869,615 | $8.79M | 0.01% | +888,017+90.5% | Added |
| Goldman Sachs Group Inc | 1,459,839 | $6.86M | 0.00% | −1,001,105−40.7% | Reduced |
| Gilder Gagnon Howe & Co LLC | 1,120,309 | $5.27M | 0.06% | +1,120,309 | New |
| Vanguard Fiduciary Trust Co | 1,102,883 | $5.18M | 0.00% | +1,102,883 | New |
| Patient Square Capital LP | 1,085,790 | $5.10M | 0.91% | +1,085,790 | New |
| Seven Fleet Capital Management LP | 1,085,398 | $5.10M | 1.60% | +1,036,500+2,119.7% | Added |
| Jane Street Group, LLC | 997,510 | $4.69M | 0.01% | +390,292+64.3% | Added |
| Eventide Asset Management, LLC | 900,000 | $4.23M | 0.07% | +900,000 | New |
| Ally Bridge Group (NY) LLC | 900,000 | $4.23M | 4.20% | +900,000 | New |
| Trexquant Investment LP | 898,767 | $4.22M | 0.03% | +898,767 | New |
| Vanguard Portfolio Management LLC | 794,755 | $3.74M | 0.00% | +794,755 | New |
| Balyasny Asset Management LLC | 730,844 | $3.43M | 0.01% | −3,141,358−81.1% | Reduced |
| DV Trading LLC | 714,000 | $3.36M | 0.30% | +714,000 | New |
| Northern Trust Corp | 612,141 | $2.88M | 0.00% | +196,963+47.4% | Added |
| BNP Paribas Arbitrage, SA | 606,275 | $2.85M | 0.00% | +603,450+21,361.1% | Added |
| Ensign Peak Advisors, Inc | 592,473 | $2.78M | 0.01% | +592,473 | New |
| Caption Management, LLC | 573,224 | $2.69M | 0.13% | +573,224 | New |
| First Trust Advisors LP | 568,562 | $2.67M | 0.00% | +145,394+34.4% | Added |
| EAM Investors, LLC | 565,113 | $2.66M | 0.31% | +361,290+177.3% | Added |
| Longaeva Partners L.P. | 550,000 | $2.58M | 0.12% | +550,000 | New |
| Velan Capital Investment Management LP | 540,000 | $2.54M | 1.59% | +460,000+575.0% | Added |
| Exome Asset Management LLC | 521,468 | $2.45M | 1.44% | −223,837−30.0% | Reduced |
| Morgan Stanley | 520,495 | $2.45M | 0.00% | +119,304+29.7% | Added |
| Schulhoff & Co Inc | 477,550 | $2.24M | 0.92% | +102,700+27.4% | Added |
| Deutsche Bank AG | 463,421 | $2.18M | 0.00% | +463,421 | New |
| 683 Capital Management, LLC | 425,000 | $2.00M | 0.19% | +425,000 | New |
| Raymond James Financial Inc | 380,160 | $1.79M | 0.00% | +63,189+19.9% | Added |
| Assenagon Asset Management S.A. | 364,173 | $1.71M | 0.00% | −228,523−38.6% | Reduced |
| Seven Grand Managers, LLC | 325,000 | $1.53M | 0.10% | +325,000 | New |
| Swiss National Bank | 319,600 | $1.50M | 0.00% | +319,600 | New |
| Soleus Capital Management, L.P. | 300,000 | $1.41M | 0.06% | +300,000 | New |
| Bank of New York Mellon Corp | 289,868 | $1.36M | 0.00% | −38,380−11.7% | Reduced |
| HighVista Strategies LLC | 288,057 | $1.35M | 0.37% | +94,116+48.5% | Added |
| Brevan Howard Capital Management LP | 269,202 | $1.27M | 0.01% | +257,798+2,260.6% | Added |
| Simplex Trading, LLC | 248,438 | $1.17M | 0.04% | +224,387+933.0% | Added |
| SEI Investments Co | 248,248 | $1.17M | 0.00% | +124,124+100.0% | Added |
| Toroso Investments, LLC | 245,768 | $1.16M | 0.00% | +200,005+437.0% | Added |
| Squarepoint Ops LLC | 241,215 | $1.13M | 0.00% | +191,318+383.4% | Added |
| Rafferty Asset Management, LLC | 239,824 | $1.13M | 0.00% | −33,760−12.3% | Reduced |
| LMR Partners LLP | 234,931 | $1.10M | 0.01% | +234,931 | New |
| Scientech Research LLC | 230,598 | $1.08M | 0.90% | +230,598 | New |
| DAFNA Capital Management LLC | 230,000 | $1.08M | 0.25% | +230,000 | New |
| Tema ETFs LLC | 227,505 | $1.07M | 0.07% | +227,505 | New |
| Burkehill Global Management, LP | 225,000 | $1.06M | 0.05% | +225,000 | New |
| Sphera Funds Management Ltd. | 220,000 | $1.03M | 0.18% | +220,000 | New |
| Stonepine Capital Management, LLC | 200,000 | $940.0K | 0.83% | +200,000 | New |
| Centiva Capital, LP | 200,000 | $940.0K | 0.04% | +200,000 | New |
| UBS Asset Management Americas Inc | 189,400 | $890.2K | 0.00% | +189,400 | New |
| Y-Intercept (Hong Kong) Ltd | 167,514 | $787.3K | 0.01% | +167,514 | New |
| Group One Trading, L.P. | 154,134 | $724.4K | 0.02% | +154,134 | New |
| AWM Investment Company, Inc. | 150,000 | $705.0K | 0.08% | +150,000 | New |
| Barclays PLC | 142,412 | $669.3K | 0.00% | −194,113−57.7% | Reduced |
| Legal & General Group Plc | 141,893 | $666.9K | 0.00% | +141,893 | New |
| Charles Schwab Investment Management Inc | 128,796 | $605.3K | 0.00% | +60,109+87.5% | Added |
| Vanguard Asset Management, Ltd | 122,893 | $577.6K | 0.00% | +122,893 | New |
| LPL Financial LLC | 122,634 | $576.4K | 0.00% | +9,194+8.1% | Added |
| Prelude Capital Management, LLC | 121,912 | $573.0K | 0.04% | −84,614−41.0% | Reduced |
| NLB Skladi, upravljanje premozenja, d.o.o. | 111,111 | $522.2K | 0.03% | +11,111+11.1% | Added |
| Canada Pension Plan Investment Board | 108,800 | $511.4K | 0.00% | +4,600+4.4% | Added |
| Alps Advisors Inc | 105,820 | $497.4K | 0.00% | +105,820 | New |
| Jain Global LLC | 104,750 | $492.3K | 0.01% | +83,538+393.8% | Added |
| Profund Advisors LLC | 104,535 | $491.3K | 0.02% | +5,902+6.0% | Added |
| Aspire Growth Partners LLC | 102,254 | $480.6K | 0.33% | 00.0% | Unchanged |
| Virtu Financial LLC | 101,895 | $479.0K | 0.02% | +101,895 | New |
| Citigroup Inc | 101,801 | $478.5K | 0.00% | +5,475+5.7% | Added |
| Cannon Global Investment Management, LLC | 96,100 | $451.7K | 1.09% | +96,100 | New |
| Landscape Capital Management, L.L.C. | 94,240 | $442.9K | 0.03% | +94,240 | New |
| California State Teachers Retirement System | 88,379 | $415.4K | 0.00% | +88,379 | New |
| Hudson Bay Capital Management LP | 80,663 | $379.1K | 0.00% | +29,673+58.2% | Added |
| XTX Topco Ltd | 77,861 | $365.9K | 0.01% | +29,870+62.2% | Added |
| Miller Financial Services LLC | 72,000 | $338.4K | 0.38% | +4,000+5.9% | Added |
| Vanguard Global Advisers, LLC | 71,617 | $336.6K | 0.00% | +71,617 | New |
| Jacobs Levy Equity Management, Inc | 68,378 | $321.4K | 0.00% | +68,378 | New |
| Schonfeld Strategic Advisors LLC | 67,732 | $318.3K | 0.00% | +67,732 | New |