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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 LLC14.68%31,955,637$111.84MInstitution
Kynam Capital Management LP6.90%15,013,093$52.55MInstitution
Bank Of America Corp4.69%10,202,785$35.71MInstitution
Perceptive Advisors LLC4.64%10,098,824$35.35MInstitution
Venrock Adviser LLC4.59%9,982,124$34.94MInstitution
Vanguard Capital Management LLC4.01%8,733,118$30.57MInstitution
Point72 Asset Management LP3.62%7,875,390$27.56MInstitution
State Street Corp2.60%5,663,408$19.82MInstitution
Citadel Advisors LLC2.48%5,406,193$18.92MInstitution
Blackrock Inc2.40%5,228,280$18.30MInstitution

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CTMX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
CTMX88.73%10.06%Net SellingNet Selling
KURA90.07%9.93%Net SellingNet Buying
GERN76.76%1.09%Net BuyingNet Buying
LBRX78.33%21.67%Net Buying
ANNX84.74%15.26%Net BuyingNet Selling
View Top Biotech Stocks

Cytomx Therapeutics Stock Ownership FAQ

Who owns Cytomx Therapeutics?

Cytomx Therapeutics (NASDAQ: CTMX) is owned by 88.73% institutional shareholders, 10.06% Cytomx Therapeutics insiders, and 1.21% retail investors. Kevin P. Starr is the largest individual Cytomx Therapeutics shareholder, owning 5.20M shares representing 2.39% of the company. Kevin P. Starr's Cytomx Therapeutics shares are currently valued at $18.93M.

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