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 |
|---|---|---|---|---|---|
| CWM Advisors, LLC | 6 | $30 | 0.00% | −2−25.0% | Reduced |
| SBI Securities Co., Ltd. | 28 | $132 | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 37 | $174 | 0.00% | +37 | New |
| National Bank of Canada | 42 | $197 | 0.00% | +42 | New |
| Rachor Investment Advisory Services, LLC | 175 | $823 | 0.00% | +175 | New |
| Advisory Services Network, LLC | 274 | $1.29K | 0.00% | +274 | New |
| Larson Financial Group LLC | 300 | $1.41K | 0.00% | +300 | New |
| Jones Financial Companies LLLP | 500 | $2.26K | 0.00% | +500 | New |
| Signaturefd, LLC | 529 | $2.49K | 0.00% | +529 | New |
| Royal Bank of Canada | 742 | $3.00K | 0.00% | +528+246.7% | Added |
| Quantbot Technologies LP | 1,130 | $5.31K | 0.00% | +1,130 | New |
| J.Safra Asset Management Corp | 1,424 | $6.69K | 0.00% | +1,424 | New |
| Caitong International Asset Management Co., Ltd | 1,649 | $7.75K | 0.00% | −3,041−64.8% | Reduced |
| GF Fund Management Co. Ltd. | 3,787 | $17.8K | 0.00% | +458+13.8% | Added |
| Wells Fargo & Company | 6,595 | $31.0K | 0.00% | −10−0.2% | Reduced |
| Farther Finance Advisors, LLC | 7,875 | $35.9K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 8,838 | $41.5K | 0.00% | +605+7.3% | Added |
| Peregrine Asset Advisers, Inc. | 10,200 | $47.9K | 0.01% | +200+2.0% | Added |
| Lido Advisors, LLC | 10,425 | $49.0K | 0.00% | +10,425 | New |
| Creative Planning | 10,505 | $49.4K | 0.00% | +10,505 | New |
| Jump Financial, LLC | 10,724 | $50.4K | 0.00% | +10,724 | New |
| Gabelli & Co Investment Advisers, Inc. | 11,000 | $51.7K | 0.01% | +11,000 | New |
| Teacher Retirement System of Texas | 11,467 | $53.9K | 0.00% | +11,467 | New |
| Forefront Analytics, LLC | 12,476 | $58.6K | 0.05% | −6,223−33.3% | Reduced |
| IPG Investment Advisors LLC | 12,500 | $58.8K | 0.01% | 00.0% | Unchanged |
| Nierenberg Investment Management Company, Inc. | 12,555 | $59.0K | 0.03% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 12,984 | $61.0K | 0.00% | −11,810−47.6% | Reduced |
| State of Wisconsin Investment Board | 13,126 | $61.7K | 0.00% | +13,126 | New |
| TRB Wealth Management, LLC | 13,435 | $63.1K | 0.01% | +13,435 | New |
| Icapital Wealth LLC | 14,492 | $68.0K | 0.04% | 00.0% | Unchanged |
| Paces Ferry Wealth Advisors, LLC | 14,822 | $69.7K | 0.03% | 00.0% | Unchanged |
| Evolve Private Wealth, LLC | 14,833 | $69.7K | 0.00% | −10.0% | Reduced |
| Boothbay Fund Management, LLC | 15,000 | $70.5K | 0.00% | −879,663−98.3% | Reduced |
| Victory Capital Management Inc | 15,161 | $71.3K | 0.00% | +439+3.0% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 16,683 | $73.6K | 0.00% | +724+4.5% | Added |
| Advisor Group Holdings, Inc. | 16,471 | $77.4K | 0.00% | −2,939−15.1% | Reduced |
| Pictet Asset Management Holding SA | 16,606 | $78.0K | 0.00% | +16,606 | New |
| Sanctuary Advisors, LLC | 17,053 | $80.1K | 0.00% | −2,087−10.9% | Reduced |
| WestHill Financial Advisors, Inc. | 17,082 | $80.3K | 0.02% | 00.0% | Unchanged |
| Formidable Asset Management, LLC | 18,263 | $85.8K | 0.01% | −27,500−60.1% | Reduced |
| Gsa Capital Partners LLP | 19,140 | $90.0K | 0.01% | −62,746−76.6% | Reduced |
| Mariner, LLC | 19,750 | $92.8K | 0.00% | −2,430−11.0% | Reduced |
| Ethos Financial Group, LLC | 23,697 | $100.9K | 0.01% | 00.0% | Unchanged |
| DRW Securities, LLC | 21,803 | $102.5K | 0.01% | +21,803 | New |
| Mangrove Partners | 26,265 | $123.4K | 0.01% | 00.0% | Unchanged |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 26,660 | $125.3K | 0.00% | +26,660 | New |
| JustInvest LLC | 26,765 | $125.8K | 0.00% | 00.0% | Unchanged |
| Truvestments Capital LLC | 27,428 | $128.9K | 0.02% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 30,741 | $135.6K | 0.00% | +6,378+26.2% | Added |
| Engineers Gate Manager LP | 29,477 | $138.5K | 0.00% | +2,938+11.1% | Added |
| E Fund Management Co., Ltd. | 30,147 | $141.7K | 0.00% | +30,147 | New |
| Verdad Advisers, LP | 30,187 | $141.9K | 0.16% | +30,187 | New |
| Winton Group Ltd | 31,100 | $146.2K | 0.01% | +31,100 | New |
| Fox Run Management, L.L.C. | 33,920 | $149.6K | 0.03% | +33,920 | New |
| State of New Jersey Common Pension Fund D | 31,848 | $149.7K | 0.00% | +31,848 | New |
| Gabelli Funds LLC | 33,000 | $155.1K | 0.00% | +33,000 | New |
| KLP Kapitalforvaltning AS | 35,500 | $166.8K | 0.00% | +35,500 | New |
| Vanguard Investments Australia, Ltd. | 36,925 | $173.5K | 0.00% | +36,925 | New |
| Cerity Partners LLC | 37,806 | $177.7K | 0.00% | +37,806 | New |
| Toronto Dominion Bank | 40,116 | $188.5K | 0.00% | +40,116 | New |
| Private Advisor Group, LLC | 44,002 | $206.8K | 0.00% | 00.0% | Unchanged |
| Arizona State Retirement System | 44,377 | $208.6K | 0.00% | +44,377 | New |
| Shay Capital LLC | 45,000 | $211.5K | 0.03% | +45,000 | New |
| Janus Henderson Group PLC | 46,700 | $219.7K | 0.00% | +46,700 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 47,988 | $225.5K | 0.00% | +47,988 | New |
| Susquehanna Portfolio Strategies, LLC | 48,012 | $225.7K | 0.00% | 00.0% | Unchanged |
| Congress Park Capital LLC | 49,171 | $231.1K | 0.07% | −9,751−16.5% | Reduced |
| HB Wealth Management, LLC | 50,000 | $235.0K | 0.00% | +25,000+100.0% | Added |
| Catalyst Funds Management Pty Ltd | 51,600 | $242.5K | 0.04% | +51,600 | New |
| State of Wyoming | 52,692 | $247.7K | 0.03% | +31,181+145.0% | Added |
| Merit Financial Group, LLC | 53,243 | $250.2K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 55,068 | $258.8K | 0.02% | +27,459+99.5% | Added |
| Skopos Labs, Inc. | 55,478 | $260.7K | 0.01% | −5,996−9.8% | Reduced |
| Diametric Capital, LP | 57,475 | $270.1K | 0.07% | +57,475 | New |
| Invesco Ltd. | 61,555 | $289.3K | 0.00% | +39,579+180.1% | Added |
| Omers Administration Corp | 62,400 | $293.3K | 0.00% | −25,400−28.9% | Reduced |
| Acadian Asset Management LLC | 63,694 | $298.0K | 0.00% | −792,362−92.6% | Reduced |
| Virtus Investment Advisers, Inc. | 65,080 | $305.9K | 0.08% | +1,589+2.5% | Added |
| Ameriprise Financial Inc | 65,015 | $305.9K | 0.00% | −164,584−71.7% | Reduced |
| Schonfeld Strategic Advisors LLC | 67,732 | $318.3K | 0.00% | +67,732 | New |
| Jacobs Levy Equity Management, Inc | 68,378 | $321.4K | 0.00% | +68,378 | New |
| Vanguard Global Advisers, LLC | 71,617 | $336.6K | 0.00% | +71,617 | New |
| Miller Financial Services LLC | 72,000 | $338.4K | 0.38% | +4,000+5.9% | Added |
| XTX Topco Ltd | 77,861 | $365.9K | 0.01% | +29,870+62.2% | Added |
| Hudson Bay Capital Management LP | 80,663 | $379.1K | 0.00% | +29,673+58.2% | Added |
| California State Teachers Retirement System | 88,379 | $415.4K | 0.00% | +88,379 | New |
| Landscape Capital Management, L.L.C. | 94,240 | $442.9K | 0.03% | +94,240 | New |
| Cannon Global Investment Management, LLC | 96,100 | $451.7K | 1.09% | +96,100 | New |
| Citigroup Inc | 101,801 | $478.5K | 0.00% | +5,475+5.7% | Added |
| Virtu Financial LLC | 101,895 | $479.0K | 0.02% | +101,895 | New |
| Aspire Growth Partners LLC | 102,254 | $480.6K | 0.33% | 00.0% | Unchanged |
| Profund Advisors LLC | 104,535 | $491.3K | 0.02% | +5,902+6.0% | Added |
| Jain Global LLC | 104,750 | $492.3K | 0.01% | +83,538+393.8% | Added |
| Alps Advisors Inc | 105,820 | $497.4K | 0.00% | +105,820 | New |
| Canada Pension Plan Investment Board | 108,800 | $511.4K | 0.00% | +4,600+4.4% | Added |
| NLB Skladi, upravljanje premozenja, d.o.o. | 111,111 | $522.2K | 0.03% | +11,111+11.1% | Added |
| Prelude Capital Management, LLC | 121,912 | $573.0K | 0.04% | −84,614−41.0% | Reduced |
| LPL Financial LLC | 122,634 | $576.4K | 0.00% | +9,194+8.1% | Added |
| Vanguard Asset Management, Ltd | 122,893 | $577.6K | 0.00% | +122,893 | New |
| Charles Schwab Investment Management Inc | 128,796 | $605.3K | 0.00% | +60,109+87.5% | Added |