Cytomx TherapeuticsCTMX
13F holders, Q1 2026 (March 31)179holders +57
69new positions
18sold out
3famous investors
$4.70avg. 13F price*
At the end of Q1 2026, 179 institutions reported holding Cytomx Therapeutics Inc. (CTMX) in their 13F filings, up 57 from Q4 2025. 69 opened new positions and 18 sold out. The largest holders were FMR LLC ($150.2M), Kynam Capital Management, LP ($70.6M) and Bank of America Corp. ($48.0M). 3 famous investors held it, including Steve Cohen (0.1% of Point72 Asset Management's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Cytomx Therapeutics Inc.
- CUSIP
- 23284F105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 69 | $115.4M |
| Exits | 18 | $97.5M |
All 13F filers, Q4 2025 → Q1 2026: 83,493,023 shares bought and 36,516,443 shares sold, net +46,976,580 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 179 holders
| FMR LLC | 0.01% | Add +29.4% | 31,955,637 | $150.2M |
| Kynam Capital Management, LP | 4.48% | Add +67.4% | 15,013,093 | $70.6M |
| Bank of America Corp. | 0.00% | Add +1064.3% | 10,202,785 | $48.0M |
| Perceptive Advisors LLC | 0.94% | Add +4.3% | 10,098,824 | $47.5M |
| Venrock Adviser, LLC | 1.75% | Reduce -35.9% | 9,982,124 | $46.9M |
| Vanguard Capital Management LLC | 0.00% | — | 8,733,118 | $41.0M |
| Point72 Asset Management | 0.07% | Add +51.8% | 7,875,390 | $37.0M |
| State Street Corp. | 0.00% | Add +10.2% | 5,663,408 | $26.6M |
| Citadel Advisors | 0.02% | Add +1479.3% | 5,406,193 | $25.4M |
| BlackRock, Inc. | 0.00% | Add +42.5% | 5,228,280 | $24.6M |
| Baker Bros. Advisors LP | 0.13% | Add +17.1% | 4,975,826 | $23.4M |
| Elmind Capital, LP | 6.07% | Add +550.0% | 4,550,000 | $21.4M |
| Nextech Invest Ltd. | 1.47% | New | 4,449,932 | $20.9M |
| Marshall Wace, LLP | 0.02% | Add +257.7% | 4,138,176 | $19.4M |
| Millennium Management | 0.01% | Add +1163.7% | 3,660,190 | $17.2M |
| Wellington Management Group LLP | 0.00% | New | 3,582,985 | $16.8M |
| Siren, L.L.C. | 0.45% | New | 3,457,711 | $16.3M |
| ADAR1 Capital Management, LLC | 0.97% | Reduce -18.5% | 3,410,190 | $16.0M |
| Eversept Partners, LP | 0.99% | Add +27.2% | 3,188,514 | $15.0M |
| UBS Group AG | 0.00% | Add +741.6% | 3,120,155 | $14.7M |
| Jefferies Financial Group Inc. | 0.18% | Add +12809.7% | 3,067,864 | $14.4M |
| Two Sigma Investments, LP | 0.01% | Add +73.6% | 2,710,156 | $12.7M |
| Qube Research & Technologies Ltd | 0.01% | Add +112.0% | 2,249,583 | $10.6M |
| Geode Capital Management, LLC | 0.00% | Add +35.5% | 2,066,612 | $9.7M |
| Woodline Partners LP | 0.04% | Reduce -14.4% | 2,000,825 | $9.4M |
| Dimensional Fund Advisors LP | 0.00% | Add +49.7% | 1,930,920 | $9.1M |
| Susquehanna International Group, LLP | 0.01% | Add +90.5% | 1,869,615 | $8.8M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -40.7% | 1,459,839 | $6.9M |
| Gilder Gagnon Howe & Co. LLC | 0.06% | New | 1,120,309 | $5.3M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 1,102,883 | $5.2M |
| Patient Square Capital LP | 0.91% | New | 1,085,790 | $5.1M |
| Jane Street Group, LLC | 0.01% | Add +64.3% | 997,510 | $4.7M |
| Ally Bridge Group (NY) LLC | 4.20% | New | 900,000 | $4.2M |
| Eventide Asset Management, LLC | 0.07% | New | 900,000 | $4.2M |
| Trexquant Investment LP | 0.03% | New | 898,767 | $4.2M |
| Vanguard Portfolio Management LLC | 0.00% | — | 794,755 | $3.7M |
| Balyasny Asset Management L.P. | 0.01% | Reduce -81.1% | 730,844 | $3.4M |
| DV Trading LLC | 0.30% | New | 714,000 | $3.4M |
| Northern Trust Corp. | 0.00% | Add +47.4% | 612,141 | $2.9M |
| BNP Paribas Financial Markets | 0.00% | Add +21361.1% | 606,275 | $2.8M |
| Ensign Peak Advisors, Inc | 0.01% | New | 592,473 | $2.8M |
| Caption Management, LLC | 0.13% | New | 573,224 | $2.7M |
| First Trust Advisors LP | 0.00% | Add +34.4% | 568,562 | $2.7M |
| Informed Momentum Co LLC | 0.31% | Add +177.3% | 565,113 | $2.7M |
| Longaeva Partners L.P. | 0.12% | New | 550,000 | $2.6M |
| Velan Capital Investment Management LP | 1.59% | Add +575.0% | 540,000 | $2.5M |
| Exome Asset Management LLC | 1.44% | Reduce -30.0% | 521,468 | $2.5M |
| Morgan Stanley | 0.00% | Add +29.7% | 520,495 | $2.4M |
| Schulhoff & Co. Inc. | 0.92% | Add +27.4% | 477,550 | $2.2M |
| Deutsche Bank AG | 0.00% | New | 463,421 | $2.2M |
| 683 Capital Management, LLC | 0.20% | New | 425,000 | $2.0M |
| Raymond James Financial Inc. | 0.00% | Add +19.9% | 380,160 | $1.8M |
| Seven Fleet Capital Management LP | 0.55% | Add +659.5% | 371,398 | $1.7M |
| Assenagon Asset Management S.A. | 0.00% | Reduce -38.6% | 364,173 | $1.7M |
| Seven Grand Managers, LLC | 0.10% | New | 325,000 | $1.5M |
| Swiss National Bank | 0.00% | New | 319,600 | $1.5M |
| Soleus Capital Management, L.P. | 0.06% | New | 300,000 | $1.4M |
| Bank of New York Mellon Corp | 0.00% | Reduce -11.7% | 289,868 | $1.4M |
| HighVista Strategies LLC | 0.37% | Add +48.5% | 288,057 | $1.4M |
| Brevan Howard Capital Management LP | 0.01% | Add +2260.6% | 269,202 | $1.3M |
| Simplex Trading, LLC | 0.04% | Add +933.0% | 248,438 | $1.2M |
| Sei Investments Co. | 0.00% | Add +100.0% | 248,248 | $1.2M |
| Tidal Investments LLC | 0.00% | Add +437.1% | 245,768 | $1.2M |
| Squarepoint Ops LLC | 0.00% | Add +383.4% | 241,215 | $1.1M |
| Rafferty Asset Management, LLC | 0.00% | Reduce -12.3% | 239,824 | $1.1M |
| LMR Partners LLP | 0.01% | New | 234,931 | $1.1M |
| Scientech Research LLC | 0.90% | New | 230,598 | $1.1M |
| DAFNA Capital Management LLC | 0.25% | New | 230,000 | $1.1M |
| Tema ETFs LLC | 0.07% | New | 227,505 | $1.1M |
| Burkehill Global Management, LP | 0.06% | New | 225,000 | $1.1M |
| Sphera Funds Management LTD. | 0.18% | New | 220,000 | $1.0M |
| Stonepine Capital Management, LLC | 0.83% | New | 200,000 | $940K |
| Centiva Capital, LP | 0.04% | New | 200,000 | $940K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | New | 189,400 | $890K |
| Y-Intercept (Hong Kong) Ltd | 0.01% | New | 167,514 | $787K |
| Group One Trading LLC | 0.02% | New | 154,134 | $724K |
| AWM Investment Company, Inc. | 0.08% | New | 150,000 | $705K |
| Barclays PLC | 0.00% | Reduce -57.7% | 142,412 | $669K |
| Legal & General Group Plc | 0.00% | New | 141,893 | $667K |
| Charles Schwab Investment Management Inc. | 0.00% | Add +87.5% | 128,796 | $605K |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 122,893 | $578K |
| LPL Financial LLC | 0.00% | Add +8.1% | 122,634 | $576K |
| Prelude Capital Management, LLC | 0.04% | Reduce -41.0% | 121,912 | $573K |
| NLB Skladi, upravljanje premozenja, d.o.o. | 0.03% | Add +11.1% | 111,111 | $522K |
| Canada Pension Plan Investment Board | 0.00% | Add +4.4% | 108,800 | $511K |
| Alps Advisors Inc. | 0.00% | New | 105,820 | $497K |
| Jain Global LLC | 0.01% | Add +393.8% | 104,750 | $492K |
| Profund Advisors LLC | 0.02% | Add +6.0% | 104,535 | $491K |
| Aspire Growth Partners LLC | 0.33% | No change | 102,254 | $481K |
| Virtu Financial LLC | 0.02% | New | 101,895 | $479K |
| Citigroup Inc. | 0.00% | Add +5.7% | 101,801 | $478K |
| Cannon Global Investment Management, LLC | 1.10% | New | 96,100 | $452K |
| Landscape Capital Management, L.L.C. | 0.03% | New | 94,240 | $443K |
| California State Teachers Retirement System | 0.00% | New | 88,379 | $415K |
| Hudson Bay Capital Management LP | 0.00% | Add +58.2% | 80,663 | $379K |
| XTX Topco Ltd | 0.01% | Add +62.2% | 77,861 | $366K |
| Miller Financial Services LLC | 0.38% | Add +5.9% | 72,000 | $338K |
| Vanguard Global Advisers, LLC | 0.00% | — | 71,617 | $337K |
| Jacobs Levy Equity Management, Inc. | 0.00% | New | 68,378 | $321K |
| Schonfeld Strategic Advisors LLC | 0.00% | New | 67,732 | $318K |
"% of holder's portfolio" is CTMX's weight in each manager's 13F, not the share of Cytomx Therapeutics Inc. the manager owns.