Sean A. McCarthy
CEO at CytomX Therapeutics Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: CytomX Therapeutics Inc., 3 years.
Chief executive roles
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Mar 17, 2026 | CytomX Therapeutics Inc. | Open-market sale | −118,969 | $6.42 | $763,781 |
| Feb 2, 2026 | CytomX Therapeutics Inc. | Grant or award | +210,000 | — | — |
| Nov 6, 2025 | CytomX Therapeutics Inc. | Open-market sale | −101,793 | $4.54 | $462,140 |
| Jun 16, 2025 | CytomX Therapeutics Inc. | Open-market sale | −55,511 | $2.69 | $149,325 |
| Jun 13, 2025 | CytomX Therapeutics Inc. | Option exercise | +150,000 | — | — |
| Mar 18, 2025 | CytomX Therapeutics Inc. | Open-market sale | −37,656 | $0.60 | $22,594 |
| Feb 4, 2025 | CytomX Therapeutics Inc. | Grant or award | +180,000 | — | — |
| Feb 4, 2025 | CytomX Therapeutics Inc. | Grant or award | +195,000 | — | — |
| Aug 20, 2024 | CytomX Therapeutics Inc. | Option exercise | +37,500 | — | — |
| Aug 20, 2024 | CytomX Therapeutics Inc. | Open-market sale | −13,898 | $1.23 | $17,095 |
| Mar 26, 2024 | CytomX Therapeutics Inc. | Option exercise | +109,768 | $1.57 | $172,336 |
| Mar 19, 2024 | CytomX Therapeutics Inc. | Open-market sale | −20,223 | $2.09 | $42,266 |
| Jan 18, 2024 | CytomX Therapeutics Inc. | Grant or award | +90,000 | — | — |
| Dec 20, 2023 | CytomX Therapeutics Inc. | Open-market sale | −13,551 | $1.38 | $18,700 |
| Dec 17, 2023 | CytomX Therapeutics Inc. | Option exercise | +37,500 | — | — |
Questions about Sean A. McCarthy
What boards is Sean A. McCarthy on?
Sean A. McCarthy sits on the board of CytomX Therapeutics Inc.
What company is Sean A. McCarthy the CEO of?
Sean A. McCarthy is CEO of CytomX Therapeutics Inc.
How long has Sean A. McCarthy served on boards?
Our records show at least 4 years of board service across 1 board, the earliest from 2023.
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