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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 2025

Institutional positions in CytomX Therapeutics, Inc. as of Mar 31, 2025. 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
66
−4 vs. Q4 2024
Shares held
45.3M
−1.44M (−3.1%) vs. Q4 2024
Total value
$28.8M
−$19.3M (−40.1%) vs. Q4 2024
New holders
7
20 more added
Sold out
11
26 more reduced

Compare with Q4 2024: 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.

Institutional holdersQ1 2025: 66 institutions
Q1 2021: 126 institutionsQ2 2021: 122 institutionsQ3 2021: 114 institutionsQ4 2021: 110 institutionsQ1 2022: 119 institutionsQ2 2022: 99 institutionsQ3 2022: 84 institutionsQ4 2022: 81 institutionsQ1 2023: 76 institutionsQ2 2023: 67 institutionsQ3 2023: 62 institutionsQ4 2023: 68 institutionsQ1 2024: 88 institutionsQ2 2024: 74 institutionsQ3 2024: 69 institutionsQ4 2024: 70 institutionsQ1 2025: 66 institutionsQ2 2025: 83 institutionsQ3 2025: 103 institutionsQ4 2025: 122 institutionsQ1 2026: 179 institutionsQ2 2026: 178 institutions
Value heldQ1 2025: $28.8M
Q1 2021: $422.2MQ2 2021: $358.9MQ3 2021: $274.8MQ4 2021: $236.5MQ1 2022: $143.4MQ2 2022: $83.4MQ3 2022: $52.6MQ4 2022: $57.5MQ1 2023: $53.7MQ2 2023: $58.7MQ3 2023: $41.8MQ4 2023: $50.6MQ1 2024: $97.1MQ2 2024: $61.9MQ3 2024: $60.4MQ4 2024: $48.1MQ1 2025: $28.8MQ2 2025: $302.6MQ3 2025: $438.4MQ4 2025: $613.9MQ1 2026: $911.2MQ2 2026: $799.0M
Institutions holding CTMX and their total value by quarter
QuarterHoldersValue
Q2 2026178$799.0M
Q1 2026179$911.2M
Q4 2025122$613.9M
Q3 2025103$438.4M
Q2 202583$302.6M
Q1 202566$28.8M
Q4 202470$48.1M
Q3 202469$60.4M
Q2 202474$61.9M
Q1 202488$97.1M
Q4 202368$50.6M
Q3 202362$41.8M
Q2 202367$58.7M
Q1 202376$53.7M
Q4 202281$57.5M
Q3 202284$52.6M
Q2 202299$83.4M
Q1 2022119$143.4M
Q4 2021110$236.5M
Q3 2021114$274.8M
Q2 2021122$358.9M
Q1 2021126$422.2M

Institutions, Q1 2025

Shares, value and share of portfolio for each institution holding CytomX Therapeutics, Inc.; share changes are against Q4 2024.

Institutions holding CTMX in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Lazard Asset Management LLC816$00.00%−4,689−85.2%Reduced
Barclays PLC2$10.00%+2New
BNP Paribas Arbitrage, SA17$110.00%−61−78.2%Reduced
Citadel Advisors LLC100$640.00%−322,211−100.0%Reduced
SBI Securities Co., Ltd.108$690.00%−999−90.2%Reduced
Group One Trading, L.P.4,124$2.62K0.00%−100−2.4%Reduced
US Bancorp7,392$4.70K0.00%−23,400−76.0%Reduced
Peregrine Asset Advisers, Inc.10,000$6.36K0.00%00.0%Unchanged
Meridian Wealth Management, LLC10,000$6.36K0.00%+10,000New
Tower Research Capital LLC (TRC)10,277$6.53K0.00%+7,004+214.0%Added
IPG Investment Advisors LLC12,500$7.95K0.00%00.0%Unchanged
Nierenberg Investment Management Company, Inc.12,555$7.98K0.00%00.0%Unchanged
Virtu Financial LLC11,797$8.00K0.00%−45,215−79.3%Reduced
Advisor Group Holdings, Inc.15,350$9.76K0.00%+14,480+1,664.4%Added
WestHill Financial Advisors, Inc.17,082$10.9K0.00%00.0%Unchanged
JustInvest LLC17,708$11.3K0.00%−19,284−52.1%Reduced
Jane Street Group, LLC19,962$12.7K0.00%−1,691−7.8%Reduced
Charles Schwab Investment Management Inc24,877$15.8K0.00%+60+0.2%Added
Susquehanna International Group, LLP28,734$18.3K0.00%−31,044−51.9%Reduced
Traphagen Investment Advisors LLC30,500$19.4K0.00%00.0%Unchanged
Simplex Trading, LLC33,853$21.0K0.00%+33,346+6,577.1%Added
LPL Financial LLC42,315$26.9K0.00%00.0%Unchanged
Private Advisor Group, LLC44,002$28.0K0.00%00.0%Unchanged
Russell Investments Group, Ltd.44,576$28.3K0.00%+10,522+30.9%Added
ADAR1 Capital Management, LLC47,036$29.9K0.01%−98,000−67.6%Reduced
Miller Financial Services LLC51,000$32.4K0.05%+26,000+104.0%Added
Commonwealth Equity Services, LLC54,243$34.0K0.00%+1,000+1.9%Added
Qube Research & Technologies Ltd54,808$34.8K0.00%−300−0.5%Reduced
Morgan Stanley60,584$38.5K0.00%+47,383+358.9%Added
Goldman Sachs Group Inc61,719$39.2K0.00%+61,719New
Velan Capital Investment Management LP75,000$47.7K0.05%+40,000+114.3%Added
Prudential Financial Inc81,500$51.8K0.00%+17,200+26.7%Added
Marshall Wace, LLP85,539$54.7K0.00%+85,539New
Universal- Beteiligungs- und Servicegesellschaft mbH97,123$61.8K0.00%+97,123New
Forefront Analytics, LLC100,070$63.1K0.07%+35,811+55.7%Added
JPMorgan Chase & Co105,294$66.9K0.00%−706,336−87.0%Reduced
FMR LLC108,311$68.9K0.00%−198,472−64.7%Reduced
Two Sigma Investments, LP116,475$74.1K0.00%−204,292−63.7%Reduced
Aspire Growth Partners LLC92,254$88.6K0.08%+51,474+126.2%Added
Northern Trust Corp150,632$95.8K0.00%00.0%Unchanged
Bank of New York Mellon Corp241,980$153.9K0.00%00.0%Unchanged
Bridgeway Capital Management, LLC306,624$195.0K0.00%−25,000−7.5%Reduced
State Street Corp320,043$203.5K0.00%00.0%Unchanged
Formidable Asset Management, LLC353,840$225.0K0.04%−28,689−7.5%Reduced
Toroso Investments, LLC353,840$225.0K0.00%−28,689−7.5%Reduced
Bank of America Corp463,854$294.5K0.00%+461,833+22,851.7%Added
SEI Investments Co487,902$310.2K0.00%00.0%Unchanged
Schonfeld Strategic Advisors LLC589,332$374.7K0.00%−791,468−57.3%Reduced
Congress Park Capital LLC673,686$428.3K0.16%−290,904−30.2%Reduced
Jacobs Levy Equity Management, Inc686,208$436.3K0.00%−861,007−55.6%Reduced
Assenagon Asset Management S.A.711,454$452.3K0.00%+111,604+18.6%Added
UBS Group AG746,788$475.0K0.00%+238,232+46.8%Added
Gsa Capital Partners LLP762,930$485.0K0.04%+724,045+1,862.0%Added
Geode Capital Management, LLC857,958$545.6K0.00%+42,315+5.2%Added
Ra Capital Management, L.P.1,000,000$635.8K0.01%+1,000,000New
Renaissance Technologies LLC1,156,000$735.0K0.00%−190,800−14.2%Reduced
BlackRock, Inc.1,166,384$741.6K0.00%−73,394−5.9%Reduced
Laurion Capital Management LP1,293,686$822.5K0.06%+45,322+3.6%Added
Woodline Partners LP1,657,306$1.05M0.01%+1,657,306New
Point72 Asset Management, L.P.2,650,000$1.68M0.00%00.0%Unchanged
Millennium Management LLC2,826,276$1.80M0.00%−394,736−12.3%Reduced
Acadian Asset Management LLC3,234,035$2.05M0.01%+96,989+3.1%Added
Prosight Management, LP3,930,008$2.50M0.82%+25,008+0.6%Added
Vanguard Group Inc5,117,376$3.25M0.00%−44,926−0.9%Reduced
BVF Inc5,228,461$3.32M0.14%00.0%Unchanged
Tang Capital Management LLC6,717,825$4.27M0.24%−593,935−8.1%Reduced
Altium Capital Management LP0$00.00%−467,491−100.0%Sold out
Monimus Capital Management, LP0$00.00%−364,306−100.0%Sold out
Connor, Clark & Lunn Investment Management Ltd.0$00.00%−286,480−100.0%Sold out
HRT Financial LP0$00.00%−110,242−100.0%Sold out
Cubist Systematic Strategies, LLC0$00.00%−98,383−100.0%Sold out
Algert Global LLC0$00.00%−33,570−100.0%Sold out
XTX Topco Ltd0$00.00%−32,922−100.0%Sold out
Ikarian Capital, LLC0$00.00%−8,924−100.0%Sold out
Bollard Group LLC0$00.00%−712−100.0%Sold out
Bell Investment Advisors, Inc0$00.00%−388−100.0%Sold out
Raleigh Capital Management Inc.0$00.00%−250−100.0%Sold out