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 |
|---|---|---|---|---|---|
| Legal & General Group Plc | 141,893 | $666.9K | 0.00% | +141,893 | New |
| Barclays PLC | 142,412 | $669.3K | 0.00% | −194,113−57.7% | Reduced |
| AWM Investment Company, Inc. | 150,000 | $705.0K | 0.08% | +150,000 | New |
| Group One Trading, L.P. | 154,134 | $724.4K | 0.02% | +154,134 | New |
| Y-Intercept (Hong Kong) Ltd | 167,514 | $787.3K | 0.01% | +167,514 | New |
| UBS Asset Management Americas Inc | 189,400 | $890.2K | 0.00% | +189,400 | 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 |
| Sphera Funds Management Ltd. | 220,000 | $1.03M | 0.18% | +220,000 | New |
| Burkehill Global Management, LP | 225,000 | $1.06M | 0.05% | +225,000 | New |
| Tema ETFs LLC | 227,505 | $1.07M | 0.07% | +227,505 | New |
| DAFNA Capital Management LLC | 230,000 | $1.08M | 0.25% | +230,000 | New |
| Scientech Research LLC | 230,598 | $1.08M | 0.90% | +230,598 | New |
| LMR Partners LLP | 234,931 | $1.10M | 0.01% | +234,931 | New |
| Rafferty Asset Management, LLC | 239,824 | $1.13M | 0.00% | −33,760−12.3% | Reduced |
| Squarepoint Ops LLC | 241,215 | $1.13M | 0.00% | +191,318+383.4% | Added |
| Toroso Investments, LLC | 245,768 | $1.16M | 0.00% | +200,005+437.0% | Added |
| SEI Investments Co | 248,248 | $1.17M | 0.00% | +124,124+100.0% | Added |
| Simplex Trading, LLC | 248,438 | $1.17M | 0.04% | +224,387+933.0% | Added |
| Brevan Howard Capital Management LP | 269,202 | $1.27M | 0.01% | +257,798+2,260.6% | Added |
| HighVista Strategies LLC | 288,057 | $1.35M | 0.37% | +94,116+48.5% | Added |
| Bank of New York Mellon Corp | 289,868 | $1.36M | 0.00% | −38,380−11.7% | Reduced |
| Soleus Capital Management, L.P. | 300,000 | $1.41M | 0.06% | +300,000 | New |
| Swiss National Bank | 319,600 | $1.50M | 0.00% | +319,600 | New |
| Seven Grand Managers, LLC | 325,000 | $1.53M | 0.10% | +325,000 | New |
| Assenagon Asset Management S.A. | 364,173 | $1.71M | 0.00% | −228,523−38.6% | Reduced |
| Raymond James Financial Inc | 380,160 | $1.79M | 0.00% | +63,189+19.9% | Added |
| 683 Capital Management, LLC | 425,000 | $2.00M | 0.19% | +425,000 | New |
| Deutsche Bank AG | 463,421 | $2.18M | 0.00% | +463,421 | New |
| Schulhoff & Co Inc | 477,550 | $2.24M | 0.92% | +102,700+27.4% | Added |
| Morgan Stanley | 520,495 | $2.45M | 0.00% | +119,304+29.7% | Added |
| Exome Asset Management LLC | 521,468 | $2.45M | 1.44% | −223,837−30.0% | Reduced |
| Velan Capital Investment Management LP | 540,000 | $2.54M | 1.59% | +460,000+575.0% | Added |
| Longaeva Partners L.P. | 550,000 | $2.58M | 0.12% | +550,000 | New |
| EAM Investors, LLC | 565,113 | $2.66M | 0.31% | +361,290+177.3% | Added |
| First Trust Advisors LP | 568,562 | $2.67M | 0.00% | +145,394+34.4% | Added |
| Caption Management, LLC | 573,224 | $2.69M | 0.13% | +573,224 | New |
| Ensign Peak Advisors, Inc | 592,473 | $2.78M | 0.01% | +592,473 | New |
| BNP Paribas Arbitrage, SA | 606,275 | $2.85M | 0.00% | +603,450+21,361.1% | Added |
| Northern Trust Corp | 612,141 | $2.88M | 0.00% | +196,963+47.4% | Added |
| DV Trading LLC | 714,000 | $3.36M | 0.30% | +714,000 | New |
| Balyasny Asset Management LLC | 730,844 | $3.43M | 0.01% | −3,141,358−81.1% | Reduced |
| Vanguard Portfolio Management LLC | 794,755 | $3.74M | 0.00% | +794,755 | New |
| Trexquant Investment LP | 898,767 | $4.22M | 0.03% | +898,767 | New |
| 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 |
| Jane Street Group, LLC | 997,510 | $4.69M | 0.01% | +390,292+64.3% | Added |
| Seven Fleet Capital Management LP | 1,085,398 | $5.10M | 1.60% | +1,036,500+2,119.7% | Added |
| Patient Square Capital LP | 1,085,790 | $5.10M | 0.91% | +1,085,790 | New |
| Vanguard Fiduciary Trust Co | 1,102,883 | $5.18M | 0.00% | +1,102,883 | New |
| Gilder Gagnon Howe & Co LLC | 1,120,309 | $5.27M | 0.06% | +1,120,309 | New |
| Goldman Sachs Group Inc | 1,459,839 | $6.86M | 0.00% | −1,001,105−40.7% | Reduced |
| Susquehanna International Group, LLP | 1,869,615 | $8.79M | 0.01% | +888,017+90.5% | Added |
| Dimensional Fund Advisors LP | 1,930,920 | $9.07M | 0.00% | +641,264+49.7% | Added |
| Woodline Partners LP | 2,000,825 | $9.40M | 0.04% | −336,180−14.4% | Reduced |
| Geode Capital Management, LLC | 2,066,612 | $9.72M | 0.00% | +540,946+35.5% | Added |
| Qube Research & Technologies Ltd | 2,249,583 | $10.6M | 0.02% | +1,188,455+112.0% | Added |
| Two Sigma Investments, LP | 2,710,156 | $12.7M | 0.01% | +1,149,401+73.6% | Added |
| Jefferies Financial Group Inc. | 3,067,864 | $14.4M | 0.18% | +3,044,100+12,809.7% | Added |
| UBS Group AG | 3,120,155 | $14.7M | 0.00% | +2,749,416+741.6% | Added |
| Eversept Partners, LP | 3,188,514 | $15.0M | 0.99% | +681,424+27.2% | Added |
| ADAR1 Capital Management, LLC | 3,410,190 | $16.0M | 0.96% | −772,579−18.5% | Reduced |
| Siren, L.L.C. | 3,457,711 | $16.3M | 0.45% | +3,457,711 | New |
| Wellington Management Group LLP | 3,582,985 | $16.8M | 0.00% | +3,582,985 | New |
| Millennium Management LLC | 3,660,190 | $17.2M | 0.01% | +3,370,537+1,163.6% | Added |
| Marshall Wace, LLP | 4,138,176 | $19.4M | 0.02% | +2,981,240+257.7% | Added |
| Nextech Invest, Ltd. | 4,449,932 | $20.9M | 1.47% | +4,449,932 | New |
| Elmind Capital, LP | 4,550,000 | $21.4M | 6.07% | +3,850,000+550.0% | Added |
| Baker Bros. Advisors LP | 4,975,826 | $23.4M | 0.13% | +725,000+17.1% | Added |
| BlackRock, Inc. | 5,228,280 | $24.6M | 0.00% | +1,558,887+42.5% | Added |
| Citadel Advisors LLC | 5,406,193 | $25.4M | 0.02% | +5,063,889+1,479.4% | Added |
| State Street Corp | 5,663,408 | $26.6M | 0.00% | +522,477+10.2% | Added |
| Point72 Asset Management, L.P. | 7,875,390 | $37.0M | 0.06% | +2,685,852+51.8% | Added |
| Vanguard Capital Management LLC | 8,733,118 | $41.0M | 0.00% | +8,733,118 | New |
| VR Adviser, LLC | 9,982,124 | $46.9M | 1.75% | −5,579,376−35.9% | Reduced |
| Perceptive Advisors LLC | 10,098,824 | $47.5M | 0.94% | +418,639+4.3% | Added |
| Bank of America Corp | 10,202,785 | $48.0M | 0.00% | +9,326,480+1,064.3% | Added |
| Kynam Capital Management, LP | 15,013,093 | $70.6M | 4.48% | +6,047,016+67.4% | Added |
| FMR LLC | 31,955,637 | $150.2M | 0.01% | +7,267,528+29.4% | Added |
| Commodore Capital LP | 0 | $0 | 0.00% | −7,692,300−100.0% | Sold out |
| Financial Engines Advisors L.L.C. | 0 | $0 | 0.00% | −3,828,717−100.0% | Sold out |
| OrbiMed Advisors LLC | 0 | $0 | 0.00% | −3,525,650−100.0% | Sold out |
| Ikarian Capital, LLC | 0 | $0 | 0.00% | −3,172,616−100.0% | Sold out |
| Vivo Capital, LLC | 0 | $0 | 0.00% | −2,884,615−100.0% | Sold out |
| StemPoint Capital LP | 0 | $0 | 0.00% | −1,036,311−100.0% | Sold out |
| Silverarc Capital Management, LLC | 0 | $0 | 0.00% | −385,974−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −335,524−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −71,867−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −53,109−100.0% | Sold out |
| Timothy G. Youngquist 2020 Irrevocable Trust | 0 | $0 | 0.00% | −51,155−100.0% | Sold out |
| Baader Bank INC | 0 | $0 | 0.00% | −45,000−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −32,040−100.0% | Sold out |
| Cambria Investment Management, L.P. | 0 | $0 | 0.00% | −31,332−100.0% | Sold out |
| Empowered Funds, LLC | 0 | $0 | 0.00% | −31,332−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −17,600−100.0% | Sold out |
| Bank of Nova Scotia | 0 | $0 | 0.00% | −13,661−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −12,230−100.0% | Sold out |
| Daiwa Securities Group Inc. | 0 | $0 | 0.00% | −564−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |