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NASDAQ: CTMX
Cytomx Therapeutics Inc Stock Ownership - Who owns Cytomx Therapeutics?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Cytomx Therapeutics Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Sean A. McCarthyCEO2026-03-17118,969$6.42
$764.14kSell
Marcia BelvinSVP Chief Scientific Officer2026-03-1731,492$6.42
$202.27kSell
Yuwaye ChuChief Medical Officer2026-03-1721,279$6.42
$136.68kSell
Christopher OgdenChief Financial Officer2026-03-1719,323$6.42
$124.11kSell
Sean A. McCarthyCEO2025-11-06101,793$4.54
$461.94kSell
Marcia BelvinSVP Chief Scientific Officer2025-06-1613,884$2.69
$37.33kSell
Christopher OgdenChief Financial Officer2025-06-1610,614$2.69
$28.54kSell
Sean A. McCarthyCEO2025-06-1655,511$2.69
$149.27kSell
Christopher OgdenChief Financial Officer2025-06-131,641$2.95
$4.84kSell

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Net Insider Buy/Sell (L12M) Ownership

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CTMX Shareholders

What type of owners hold Cytomx Therapeutics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Fmr LLC14.51%24,688,109$112.58MInstitution
Vr Adviser LLC9.14%15,561,500$70.96MInstitution
Perceptive Advisors LLC5.69%9,680,185$44.14MInstitution
Kynam Capital Management LP5.27%8,966,077$40.89MInstitution
Vanguard Group Inc4.98%8,475,584$38.65MInstitution
Commodore Capital LP4.52%7,692,300$35.08MInstitution
Kevin P. Starr3.06%5,201,767$23.72MInsider
Point72 Asset Management LP3.05%5,189,538$23.66MInstitution
State Street Corp3.02%5,140,931$23.44MInstitution
Timothy M. 1. Shannon2.68%4,563,247$20.81MInsider

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CTMX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
CTMX84.65%12.87%Net SellingNet Selling
MNKD36.56%63.44%Net SellingNet Buying
OMER47.11%5.03%Net BuyingNet Buying
JBIO71.10%28.90%Net Buying
KURA90.17%9.83%Net SellingNet Selling
View Top Biotech Stocks

Cytomx Therapeutics Stock Ownership FAQ

Who owns Cytomx Therapeutics?

Cytomx Therapeutics (NASDAQ: CTMX) is owned by 84.65% institutional shareholders, 12.87% Cytomx Therapeutics insiders, and 2.48% retail investors. Kevin P. Starr is the largest individual Cytomx Therapeutics shareholder, owning 5.20M shares representing 3.06% of the company. Kevin P. Starr's Cytomx Therapeutics shares are currently valued at $23.72M.

If you're new to stock investing, here's how to buy Cytomx Therapeutics stock.
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