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CTMX Insider Trading

Insider Ownership Percentage: 6.60%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $47,968.20

CytomX Therapeutics Insider Trading History Chart

This chart shows the insider buying and selling history at CytomX Therapeutics by year and by quarter.

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CytomX Therapeutics Share Price & Price History

Current Price: $4.08
Price Change: ▲ Price Increase of +0.08 (2.00%)
As of 12/4/2025 05:00 PM ET

This chart shows the closing price history over time for CTMX up to the past year.

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Days: 30 | 90 | 365

CytomX Therapeutics Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
3/18/2025Christopher OgdenCFOSell8,551$0.60$5,130.60201,026View SEC Filing Icon  
3/18/2025Lloyd A RowlandGeneral CounselSell10,203$0.60$6,121.80120,594View SEC Filing Icon  
3/18/2025Marcia BelvinSVPSell19,512$0.60$11,707.20248,636View SEC Filing Icon  
3/18/2025Sean A. McCarthyCEOSell37,656$0.60$22,593.60995,195View SEC Filing Icon  
3/18/2025Yu-Waye ChuInsiderSell4,025$0.60$2,415.00135,725View SEC Filing Icon  
8/20/2024Christopher OgdenCFOSell1,984$1.23$2,440.32108,077View SEC Filing Icon  
8/20/2024Jeffrey B LandauInsiderSell4,181$1.23$5,142.63119,056View SEC Filing Icon  
8/20/2024Sean A. McCarthyCEOSell13,898$1.23$17,094.54657,851View SEC Filing Icon  
3/19/2024Christopher OgdenSVPSell2,971$2.09$6,209.3985,686View SEC Filing Icon  
3/19/2024Jeffrey B LandauInsiderSell6,562$2.09$13,714.58110,060View SEC Filing Icon  
3/19/2024Lloyd A RowlandGeneral CounselSell5,268$2.09$11,010.12117,728View SEC Filing Icon  
3/19/2024Sean A. McCarthyCEOSell20,223$2.09$42,266.07524,481View SEC Filing Icon  
12/20/2023Marcia BelvinSVPSell4,077$1.38$5,626.26155,124View SEC Filing Icon  
12/20/2023Sean A. McCarthyCEOSell13,551$1.38$18,700.38454,704View SEC Filing Icon  
9/22/2023Lloyd A RowlandGeneral CounselSell5,486$1.30$7,131.8080,609View SEC Filing Icon  
9/22/2023Marcia BelvinSVPSell4,119$1.30$5,354.70147,951View SEC Filing Icon  
9/22/2023Sean A. McCarthyCEOSell14,601$1.30$18,981.30430,755View SEC Filing Icon  
3/29/2023Elaine V JonesDirectorBuy5,000$1.55$7,750.005,142View SEC Filing Icon  
3/16/2023Amy C PetersonEVPSell4,257$1.98$8,428.8658,433View SEC Filing Icon  
3/16/2023Carlos CampoyCFOSell1,748$1.98$3,461.0438,224View SEC Filing Icon  
3/16/2023Christopher OgdenSVPSell516$1.98$1,021.6837,772View SEC Filing Icon  
3/16/2023Lloyd A RowlandGeneral CounselSell2,037$1.98$4,033.2671,095View SEC Filing Icon  
3/16/2023Sean A. McCarthyCEOSell7,121$1.88$13,387.48388,821View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for CytomX Therapeutics (NASDAQ:CTMX)

67.77% of CytomX Therapeutics stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at CTMX by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

CytomX Therapeutics Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/21/2025Forefront Analytics LLC18,109$58K0.1%-34.6%0.011%Search for SEC Filing on Google Icon
11/17/2025Financial Engines Advisors L.L.C.1,381,357$4.41M0.0%N/A0.815%Search for SEC Filing on Google Icon
11/17/2025Jacobs Levy Equity Management Inc.50,773$0.16M0.0%N/A0.030%Search for SEC Filing on Google Icon
11/17/2025Vivo Capital LLC2,884,615$9.20M0.7%-50.0%1.702%Search for SEC Filing on Google Icon
11/17/2025Velan Capital Investment Management LP80,000$0.26M0.2%+6.7%0.047%Search for SEC Filing on Google Icon
11/17/2025Qube Research & Technologies Ltd122,500$0.39M0.0%N/A0.072%Search for SEC Filing on Google Icon
11/17/2025Prelude Capital Management LLC206,526$0.66M0.1%N/A0.122%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC1,386,863$4.42M0.0%+494.4%0.819%Search for SEC Filing on Google Icon
11/17/2025Jain Global LLC33,652$0.11M0.0%N/A0.020%Search for SEC Filing on Google Icon
11/17/2025HighVista Strategies LLC257,148$0.82M0.2%N/A0.152%Search for SEC Filing on Google Icon
11/17/2025Baker BROS. Advisors LP4,250,826$13.56M0.1%+22.0%2.509%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE1,005,228$3.21M0.0%+20,969.5%0.593%Search for SEC Filing on Google Icon
11/17/2025Boothbay Fund Management LLC1,237,057$3.95M0.1%N/A0.730%Search for SEC Filing on Google Icon
11/17/2025Ameriprise Financial Inc.158,329$0.51M0.0%N/A0.093%Search for SEC Filing on Google Icon
11/14/2025Raymond James Financial Inc.293,560$0.94M0.0%+3.5%0.173%Search for SEC Filing on Google Icon
11/14/2025ADAR1 Capital Management LLC4,045,414$12.91M1.2%+31.3%2.388%Search for SEC Filing on Google Icon
11/14/2025Brooklyn Investment Group87,160$0.28M0.0%N/A0.051%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP729,698$2.33M0.0%+362.8%0.431%Search for SEC Filing on Google Icon
11/14/2025Prosight Management LP564,800$1.80M0.4%-83.9%0.333%Search for SEC Filing on Google Icon
11/13/2025Jefferies Financial Group Inc.52,914$0.17M0.0%N/A0.031%Search for SEC Filing on Google Icon
11/13/2025First Trust Advisors LP401,891$1.28M0.0%N/A0.237%Search for SEC Filing on Google Icon
11/12/2025Dimensional Fund Advisors LP451,128$1.44M0.0%+146.3%0.266%Search for SEC Filing on Google Icon
11/10/2025BIT Capital GmbH16,285$52K0.0%N/A0.010%Search for SEC Filing on Google Icon
11/10/2025Persistent Asset Partners Ltd42,645$0.14M0.1%N/A0.026%Search for SEC Filing on Google Icon
11/7/2025GSA Capital Partners LLP535,974$1.71M0.1%-15.0%0.325%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.8,947,807$28.54M0.0%-4.6%5.426%Search for SEC Filing on Google Icon
11/7/2025JPMorgan Chase & Co.16,152$52K0.0%+5,648.0%0.010%Search for SEC Filing on Google Icon
11/6/2025BlueChip Wealth Advisors LLC23,000$73K0.0%N/A0.014%Search for SEC Filing on Google Icon
11/3/2025Truist Financial Corp12,500$40K0.0%N/A0.008%Search for SEC Filing on Google Icon
10/29/2025Formidable Asset Management LLC118,337$0.38M0.1%-62.2%0.072%Search for SEC Filing on Google Icon
10/24/2025Bay Colony Advisory Group Inc d b a Bay Colony Advisors10,747$34K0.0%N/A0.007%Search for SEC Filing on Google Icon
10/23/2025Ethos Financial Group LLC23,697$76K0.0%N/A0.014%Search for SEC Filing on Google Icon
10/20/2025Merit Financial Group LLC53,243$0.17M0.0%N/A0.032%Search for SEC Filing on Google Icon
10/20/2025Forefront Wealth Partners LLC18,109$58K0.0%N/A0.011%Search for SEC Filing on Google Icon
10/16/2025Precision Wealth Strategies LLC237,081$0.76M0.2%N/A0.144%Search for SEC Filing on Google Icon
10/15/2025Inspire Investing LLC522,482$1.67M0.2%N/A0.317%Search for SEC Filing on Google Icon
10/14/2025Farther Finance Advisors LLC7,970$25K0.0%N/A0.005%Search for SEC Filing on Google Icon
10/8/2025Congress Park Capital LLC103,922$0.33M0.1%+8.9%0.063%Search for SEC Filing on Google Icon
10/7/2025Assenagon Asset Management S.A.729,967$2.33M0.0%+1.4%0.443%Search for SEC Filing on Google Icon
8/15/2025Tower Research Capital LLC TRC 29,661$67K0.0%+188.6%0.018%Search for SEC Filing on Google Icon
8/15/2025Soleus Capital Management L.P.1,304,300$2.96M0.2%N/A1.618%Search for SEC Filing on Google Icon
8/15/2025Tidal Investments LLC312,850$0.71M0.0%-11.6%0.388%Search for SEC Filing on Google Icon
8/15/2025Perceptive Advisors LLC6,993,646$15.88M1.4%N/A8.675%Search for SEC Filing on Google Icon
8/15/2025Lazard Asset Management LLC43,316$98K0.0%+5,208.3%0.054%Search for SEC Filing on Google Icon
8/15/2025Bridgeway Capital Management LLC126,000$0.29M0.0%-58.9%0.156%Search for SEC Filing on Google Icon
8/15/2025Balyasny Asset Management L.P.2,865,625$6.51M0.0%N/A3.554%Search for SEC Filing on Google Icon
8/14/2025Orbimed Advisors LLC8,461,500$19.21M0.5%N/A10.496%Search for SEC Filing on Google Icon
8/14/2025Commodore Capital LP7,692,300$17.46M1.2%N/A9.541%Search for SEC Filing on Google Icon
8/14/2025Raymond James Financial Inc.283,560$0.64M0.0%N/A0.352%Search for SEC Filing on Google Icon
8/14/2025Bayesian Capital Management LP50,117$0.11M0.0%N/A0.062%Search for SEC Filing on Google Icon
8/14/2025Vivo Capital LLC5,769,230$13.10M1.3%N/A7.156%Search for SEC Filing on Google Icon
8/13/2025Marshall Wace LLP2,353,122$5.34M0.0%+2,650.9%2.919%Search for SEC Filing on Google Icon
8/13/2025Invesco Ltd.14,171$32K0.0%N/A0.018%Search for SEC Filing on Google Icon
8/13/2025Pursue Wealth Partners LLC14,492$33K0.0%N/A0.018%Search for SEC Filing on Google Icon
8/13/2025Aspire Growth Partners LLC102,254$0.23M0.2%+10.8%0.127%Search for SEC Filing on Google Icon
8/12/2025XTX Topco Ltd121,899$0.28M0.0%N/A0.151%Search for SEC Filing on Google Icon
8/12/2025Prudential Financial Inc.25,700$58K0.0%-68.5%0.032%Search for SEC Filing on Google Icon
8/12/2025Franklin Resources Inc.5,769,230$13.10M0.0%N/A7.156%Search for SEC Filing on Google Icon
8/8/2025Geode Capital Management LLC1,745,176$3.96M0.0%+103.4%2.165%Search for SEC Filing on Google Icon
8/7/2025Acadian Asset Management LLC1,557,036$3.53M0.0%-51.9%1.931%Search for SEC Filing on Google Icon
7/25/2025Vanguard Personalized Indexing Management LLC28,966$66K0.0%+63.6%0.036%Search for SEC Filing on Google Icon
7/16/2025Formidable Asset Management LLC312,850$0.71M0.1%-11.6%0.388%Search for SEC Filing on Google Icon
7/11/2025Congress Park Capital LLC95,422$0.22M0.1%-85.8%0.118%Search for SEC Filing on Google Icon
7/11/2025Assenagon Asset Management S.A.720,020$1.63M0.0%+1.2%0.893%Search for SEC Filing on Google Icon
6/27/2025Goldman Sachs Group Inc.61,719$39K0.0%N/A0.077%Search for SEC Filing on Google Icon
5/21/2025Acadian Asset Management LLC3,234,035$2.05M0.0%+3.1%4.011%Search for SEC Filing on Google Icon
5/16/2025Woodline Partners LP1,657,306$1.05M0.0%N/A2.056%Search for SEC Filing on Google Icon
5/16/2025Goldman Sachs Group Inc.61,719$39K0.0%N/A0.077%Search for SEC Filing on Google Icon
5/16/2025Jacobs Levy Equity Management Inc.686,208$0.44M0.0%-55.6%0.851%Search for SEC Filing on Google Icon
5/16/2025ADAR1 Capital Management LLC47,036$30K0.0%-67.6%0.058%Search for SEC Filing on Google Icon
5/15/2025RA Capital Management L.P.1,000,000$0.64M0.0%N/A1.240%Search for SEC Filing on Google Icon
5/15/2025Velan Capital Investment Management LP75,000$48K0.0%+114.3%0.093%Search for SEC Filing on Google Icon
5/14/2025Aspire Growth Partners LLC92,254$59K0.1%+126.2%0.114%Search for SEC Filing on Google Icon
5/14/2025Forefront Analytics LLC100,070$63K0.1%+55.7%0.124%Search for SEC Filing on Google Icon
5/6/2025Universal Beteiligungs und Servicegesellschaft mbH97,123$62K0.0%N/A0.120%Search for SEC Filing on Google Icon
5/5/2025Miller Financial Services LLC51,000$32K0.0%+104.0%0.063%Search for SEC Filing on Google Icon
5/5/2025Formidable Asset Management LLC353,840$0.23M0.0%-7.5%0.439%Search for SEC Filing on Google Icon
4/22/2025Congress Park Capital LLC673,686$0.43M0.2%-30.2%0.841%Search for SEC Filing on Google Icon
4/15/2025Assenagon Asset Management S.A.711,454$0.45M0.0%+18.6%0.888%Search for SEC Filing on Google Icon
2/19/2025Formidable Asset Management LLC382,529$0.39M0.1%+55.5%0.489%Search for SEC Filing on Google Icon
2/17/2025Velan Capital Investment Management LP35,000$36K0.0%N/A0.045%Search for SEC Filing on Google Icon
2/17/2025Two Sigma Investments LP320,767$0.33M0.0%-32.0%0.410%Search for SEC Filing on Google Icon
2/17/2025Tidal Investments LLC382,529$0.39M0.0%+55.5%0.489%Search for SEC Filing on Google Icon
2/17/2025Tang Capital Management LLC7,311,760$7.53M0.5%-6.4%9.343%Search for SEC Filing on Google Icon
2/17/2025Point72 Asset Management L.P.2,650,000$2.73M0.0%N/A3.386%Search for SEC Filing on Google Icon
2/17/2025Prosight Management LP3,905,000$4.02M1.1%+29.2%4.990%Search for SEC Filing on Google Icon
2/17/2025Millennium Management LLC3,221,012$3.32M0.0%+25.8%4.116%Search for SEC Filing on Google Icon
2/17/2025Jacobs Levy Equity Management Inc.1,547,215$1.59M0.0%+1.5%1.977%Search for SEC Filing on Google Icon
2/17/2025Cubist Systematic Strategies LLC98,383$0.10M0.0%+302.2%0.126%Search for SEC Filing on Google Icon
2/17/2025Bridgeway Capital Management LLC331,624$0.34M0.0%-7.0%0.424%Search for SEC Filing on Google Icon
2/17/2025Algert Global LLC33,570$35K0.0%N/A0.043%Search for SEC Filing on Google Icon
2/17/2025Aspire Growth Partners LLC40,780$42K0.0%N/A0.052%Search for SEC Filing on Google Icon
2/14/2025Schonfeld Strategic Advisors LLC1,380,800$1.42M0.0%+13.9%1.764%Search for SEC Filing on Google Icon
2/14/2025Northern Trust Corp150,632$0.16M0.0%+16.0%0.192%Search for SEC Filing on Google Icon
2/14/2025Altium Capital Management LLC467,491$0.48M0.1%-48.9%0.597%Search for SEC Filing on Google Icon
2/13/2025Renaissance Technologies LLC1,346,800$1.39M0.0%+32.7%1.721%Search for SEC Filing on Google Icon
2/13/2025ADAR1 Capital Management LLC145,036$0.15M0.0%-84.0%0.185%Search for SEC Filing on Google Icon
2/13/2025Russell Investments Group Ltd.34,054$35K0.0%-28.5%0.044%Search for SEC Filing on Google Icon
2/12/2025JPMorgan Chase & Co.811,630$0.84M0.0%+288,736.3%1.037%Search for SEC Filing on Google Icon
2/11/2025Prudential Financial Inc.64,300$66K0.0%+76.2%0.082%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
CytomX Therapeutics logo
CytomX Therapeutics, Inc., an oncology-focused biopharmaceutical company, focuses on developing novel conditionally activated biologics localized to the tumor microenvironment. The company utilizes conditional activation platform technology for oncology biologics research and development comprising the validation of targets for antibody-drug conjugates (ADCs), opening therapeutic window for novel T-cell engagers (TCEs) targeting solid tumors, and increasing the therapeutic index for immune modulators, such as cytokines; and PROBODY platform in preclinical research in areas outside of oncology. It also develops CX-904, a T-cell-engaging bispecific antibody targeting the epidermal growth factor receptor (EGFR) on tumor cells and the CD3 receptor on T cells; CX-2051, a conditionally activated ADC for optimizing the therapeutic index for EpCAM-expressing epithelial cancers, including colorectal cancer; and CX-801, an interferon alpha-2b PROBODY cytokine. In addition, the company's development pipeline comprises CX-2029, a conditional activated ADC targeting CD71; and BMS-986288, a PROBODY version of non-fucosylated ipilimumab. It has strategic collaborations with Amgen, Astellas, Bristol Myers Squibb, Regeneron, and Moderna. CytomX Therapeutics, Inc. was founded in 2008 and is headquartered in South San Francisco, California.
Read More on CytomX Therapeutics

Today's Range

Now: $4.08
Low: $3.94
High: $4.20

50 Day Range

MA: $3.65
Low: $2.90
High: $4.27

52 Week Range

Now: $4.08
Low: $0.40
High: $4.62

Volume

1,844,415 shs

Average Volume

3,069,850 shs

Market Capitalization

$691.27 million

P/E Ratio

10.20

Dividend Yield

N/A

Beta

2.37

Who are the company insiders with the largest holdings of CytomX Therapeutics?

CytomX Therapeutics' top insider investors include:
  1. Sean A Mccarthy (CEO)
  2. Marcia Belvin (SVP)
  3. Christopher Ogden (CFO)
  4. Yu-Waye Chu (Insider)
  5. Lloyd A Rowland (General Counsel)
  6. Jeffrey B Landau (Insider)
  7. Christopher Ogden (SVP)
Learn More about top insider investors at CytomX Therapeutics.

Who are the major institutional investors of CytomX Therapeutics?

CytomX Therapeutics' top institutional investors include:
  1. Vanguard Group Inc. — 5.43%
  2. Baker BROS. Advisors LP — 2.51%
  3. ADAR1 Capital Management LLC — 2.39%
  4. Vivo Capital LLC — 1.70%
  5. Millennium Management LLC — 0.82%
  6. Financial Engines Advisors L.L.C. — 0.82%
Learn More about top institutional investors of CytomX Therapeutics stock.

Which institutional investors are selling CytomX Therapeutics stock?

During the previous quarter, CTMX stock was sold by these institutional investors:
  1. Prosight Management LP
  2. Vivo Capital LLC
  3. Vanguard Group Inc.
  4. Formidable Asset Management LLC
  5. GSA Capital Partners LLP
  6. Citadel Advisors LLC
  7. Group One Trading LLC
  8. Forefront Analytics LLC
In the last year, company insiders that have sold CytomX Therapeutics company stock include:
  1. Sean A Mccarthy (CEO)
  2. Marcia Belvin (SVP)
  3. Christopher Ogden (CFO)
  4. Yu-Waye Chu (Insider)
  5. Lloyd A Rowland (General Counsel)
Learn More investors selling CytomX Therapeutics stock.

Which institutional investors are buying CytomX Therapeutics stock?

In the last quarter, CTMX stock was purchased by institutional investors including:
  1. Financial Engines Advisors L.L.C.
  2. Boothbay Fund Management LLC
  3. Millennium Management LLC
  4. Bank of America Corp DE
  5. ADAR1 Capital Management LLC
  6. Baker BROS. Advisors LP
  7. Two Sigma Investments LP
  8. Inspire Investing LLC