Sean A. McCarthy

Companies

• CytomX Therapeutics, Inc.Board member Oct 7, 2015 to now¹
• CytomX Therapeutics, Inc.Chief executive officer Oct 7, 2015 to now¹
• CytomX Therapeutics, Inc.President Oct 7, 2015 to Jul 21, 2022¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• CTCytomX Therapeutics, Inc. CTMX1,172,080 shares²$2.7M at $2.30Mar 19, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Mar 17, 2026Sold 118,969 shares at $6.42 of CytomX Therapeutics, Inc.²
• Feb 2, 2026Granted 210,000 shares of CytomX Therapeutics, Inc.³
• Nov 6, 2025Sold 101,793 shares at $4.54 of CytomX Therapeutics, Inc.⁴
• Jun 16, 2025Sold 55,511 shares at $2.69 of CytomX Therapeutics, Inc.⁵
• Jun 13, 2025Exercised options 150,000 shares of CytomX Therapeutics, Inc.⁵
• Mar 18, 2025Sold 37,656 shares at $0.60 of CytomX Therapeutics, Inc.⁶
• Feb 4, 2025Granted 195,000 shares of CytomX Therapeutics, Inc.⁷
• Feb 4, 2025Granted 180,000 shares of CytomX Therapeutics, Inc.⁷
• Aug 20, 2024Sold 13,898 shares at $1.23 of CytomX Therapeutics, Inc.⁸
• Aug 20, 2024Exercised options 37,500 shares of CytomX Therapeutics, Inc.⁸
• Mar 26, 2024Exercised options 109,768 shares at $1.57 of CytomX Therapeutics, Inc.⁹
• Mar 19, 2024Sold 20,223 shares at $2.09 of CytomX Therapeutics, Inc.¹⁰
• Jan 18, 2024Granted 90,000 shares of CytomX Therapeutics, Inc.¹¹
• Dec 20, 2023Sold 13,551 shares at $1.38 of CytomX Therapeutics, Inc.¹²
• Dec 17, 2023Exercised options 37,500 shares of CytomX Therapeutics, Inc.¹³
• Sep 22, 2023Sold 14,601 shares at $1.30 of CytomX Therapeutics, Inc.¹⁴
• Sep 20, 2023Granted 40,000 shares of CytomX Therapeutics, Inc.¹⁴
• May 19, 2023Exercised options 16,535 shares at $1.57 of CytomX Therapeutics, Inc.¹⁵
• Mar 16, 2023Sold 7,121 shares at $1.88 of CytomX Therapeutics, Inc.¹⁶
• Feb 2, 2023Granted 105,000 shares of CytomX Therapeutics, Inc.¹⁷
• Jul 20, 2022Sold 14,911 shares at $1.42 of CytomX Therapeutics, Inc.¹⁸
• Jul 19, 2022Granted 40,000 shares of CytomX Therapeutics, Inc.¹⁸
• May 9, 2022Exercised options 24,189 shares at $0.95 of CytomX Therapeutics, Inc.¹⁹
• May 9, 2022Exercised options 66,742 shares at $0.95 of CytomX Therapeutics, Inc.¹⁹
• Feb 2, 2022Granted 75,000 shares of CytomX Therapeutics, Inc.²⁰