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 |
|---|---|---|---|---|---|
| Ameriprise Financial Inc | 65,015 | $305.9K | 0.00% | −164,584−71.7% | Reduced |
| Virtus Investment Advisers, Inc. | 65,080 | $305.9K | 0.08% | +1,589+2.5% | Added |
| Acadian Asset Management LLC | 63,694 | $298.0K | 0.00% | −792,362−92.6% | Reduced |
| Omers Administration Corp | 62,400 | $293.3K | 0.00% | −25,400−28.9% | Reduced |
| Invesco Ltd. | 61,555 | $289.3K | 0.00% | +39,579+180.1% | Added |
| Diametric Capital, LP | 57,475 | $270.1K | 0.07% | +57,475 | New |
| Skopos Labs, Inc. | 55,478 | $260.7K | 0.01% | −5,996−9.8% | Reduced |
| China Universal Asset Management Co., Ltd. | 55,068 | $258.8K | 0.02% | +27,459+99.5% | Added |
| Merit Financial Group, LLC | 53,243 | $250.2K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 52,692 | $247.7K | 0.03% | +31,181+145.0% | Added |
| Catalyst Funds Management Pty Ltd | 51,600 | $242.5K | 0.04% | +51,600 | New |
| HB Wealth Management, LLC | 50,000 | $235.0K | 0.00% | +25,000+100.0% | Added |
| Congress Park Capital LLC | 49,171 | $231.1K | 0.07% | −9,751−16.5% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 48,012 | $225.7K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 47,988 | $225.5K | 0.00% | +47,988 | New |
| Janus Henderson Group PLC | 46,700 | $219.7K | 0.00% | +46,700 | New |
| Shay Capital LLC | 45,000 | $211.5K | 0.03% | +45,000 | New |
| Arizona State Retirement System | 44,377 | $208.6K | 0.00% | +44,377 | New |
| Private Advisor Group, LLC | 44,002 | $206.8K | 0.00% | 00.0% | Unchanged |
| Toronto Dominion Bank | 40,116 | $188.5K | 0.00% | +40,116 | New |
| Cerity Partners LLC | 37,806 | $177.7K | 0.00% | +37,806 | New |
| Vanguard Investments Australia, Ltd. | 36,925 | $173.5K | 0.00% | +36,925 | New |
| KLP Kapitalforvaltning AS | 35,500 | $166.8K | 0.00% | +35,500 | New |
| Gabelli Funds LLC | 33,000 | $155.1K | 0.00% | +33,000 | New |
| State of New Jersey Common Pension Fund D | 31,848 | $149.7K | 0.00% | +31,848 | New |
| Fox Run Management, L.L.C. | 33,920 | $149.6K | 0.03% | +33,920 | New |
| Winton Group Ltd | 31,100 | $146.2K | 0.01% | +31,100 | New |
| Verdad Advisers, LP | 30,187 | $141.9K | 0.16% | +30,187 | New |
| E Fund Management Co., Ltd. | 30,147 | $141.7K | 0.00% | +30,147 | New |
| Engineers Gate Manager LP | 29,477 | $138.5K | 0.00% | +2,938+11.1% | Added |
| JPMorgan Chase & Co | 30,741 | $135.6K | 0.00% | +6,378+26.2% | Added |
| Truvestments Capital LLC | 27,428 | $128.9K | 0.02% | 00.0% | Unchanged |
| JustInvest LLC | 26,765 | $125.8K | 0.00% | 00.0% | Unchanged |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 26,660 | $125.3K | 0.00% | +26,660 | New |
| Mangrove Partners | 26,265 | $123.4K | 0.01% | 00.0% | Unchanged |
| DRW Securities, LLC | 21,803 | $102.5K | 0.01% | +21,803 | New |
| Ethos Financial Group, LLC | 23,697 | $100.9K | 0.01% | 00.0% | Unchanged |
| Mariner, LLC | 19,750 | $92.8K | 0.00% | −2,430−11.0% | Reduced |
| Gsa Capital Partners LLP | 19,140 | $90.0K | 0.01% | −62,746−76.6% | Reduced |
| Formidable Asset Management, LLC | 18,263 | $85.8K | 0.01% | −27,500−60.1% | Reduced |
| WestHill Financial Advisors, Inc. | 17,082 | $80.3K | 0.02% | 00.0% | Unchanged |
| Sanctuary Advisors, LLC | 17,053 | $80.1K | 0.00% | −2,087−10.9% | Reduced |
| Pictet Asset Management Holding SA | 16,606 | $78.0K | 0.00% | +16,606 | New |
| Advisor Group Holdings, Inc. | 16,471 | $77.4K | 0.00% | −2,939−15.1% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 16,683 | $73.6K | 0.00% | +724+4.5% | Added |
| Victory Capital Management Inc | 15,161 | $71.3K | 0.00% | +439+3.0% | Added |
| Boothbay Fund Management, LLC | 15,000 | $70.5K | 0.00% | −879,663−98.3% | Reduced |
| Evolve Private Wealth, LLC | 14,833 | $69.7K | 0.00% | −10.0% | Reduced |
| Paces Ferry Wealth Advisors, LLC | 14,822 | $69.7K | 0.03% | 00.0% | Unchanged |
| Icapital Wealth LLC | 14,492 | $68.0K | 0.04% | 00.0% | Unchanged |
| TRB Wealth Management, LLC | 13,435 | $63.1K | 0.01% | +13,435 | New |
| State of Wisconsin Investment Board | 13,126 | $61.7K | 0.00% | +13,126 | New |
| Tower Research Capital LLC (TRC) | 12,984 | $61.0K | 0.00% | −11,810−47.6% | Reduced |
| Nierenberg Investment Management Company, Inc. | 12,555 | $59.0K | 0.03% | 00.0% | Unchanged |
| IPG Investment Advisors LLC | 12,500 | $58.8K | 0.01% | 00.0% | Unchanged |
| Forefront Analytics, LLC | 12,476 | $58.6K | 0.05% | −6,223−33.3% | Reduced |
| Teacher Retirement System of Texas | 11,467 | $53.9K | 0.00% | +11,467 | New |
| Gabelli & Co Investment Advisers, Inc. | 11,000 | $51.7K | 0.01% | +11,000 | New |
| Jump Financial, LLC | 10,724 | $50.4K | 0.00% | +10,724 | New |
| Creative Planning | 10,505 | $49.4K | 0.00% | +10,505 | New |
| Lido Advisors, LLC | 10,425 | $49.0K | 0.00% | +10,425 | New |
| Peregrine Asset Advisers, Inc. | 10,200 | $47.9K | 0.01% | +200+2.0% | Added |
| Mirae Asset Global Investments Co., Ltd. | 8,838 | $41.5K | 0.00% | +605+7.3% | Added |
| Farther Finance Advisors, LLC | 7,875 | $35.9K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 6,595 | $31.0K | 0.00% | −10−0.2% | Reduced |
| GF Fund Management Co. Ltd. | 3,787 | $17.8K | 0.00% | +458+13.8% | Added |
| Caitong International Asset Management Co., Ltd | 1,649 | $7.75K | 0.00% | −3,041−64.8% | Reduced |
| J.Safra Asset Management Corp | 1,424 | $6.69K | 0.00% | +1,424 | New |
| Quantbot Technologies LP | 1,130 | $5.31K | 0.00% | +1,130 | New |
| Royal Bank of Canada | 742 | $3.00K | 0.00% | +528+246.7% | Added |
| Signaturefd, LLC | 529 | $2.49K | 0.00% | +529 | New |
| Jones Financial Companies LLLP | 500 | $2.26K | 0.00% | +500 | New |
| Larson Financial Group LLC | 300 | $1.41K | 0.00% | +300 | New |
| Advisory Services Network, LLC | 274 | $1.29K | 0.00% | +274 | New |
| Rachor Investment Advisory Services, LLC | 175 | $823 | 0.00% | +175 | New |
| National Bank of Canada | 42 | $197 | 0.00% | +42 | New |
| Allworth Financial LP | 37 | $174 | 0.00% | +37 | New |
| SBI Securities Co., Ltd. | 28 | $132 | 0.00% | 00.0% | Unchanged |
| CWM Advisors, LLC | 6 | $30 | 0.00% | −2−25.0% | Reduced |
| 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 |