CTMX
CytomX Therapeutics Inc
NASDAQ: CTMX · HEALTHCARE · BIOTECHNOLOGY
$4.05
-1.70% today
Updated 2026-04-29
Market cap
$951.18M
P/E ratio
—
P/S ratio
12.48x
EPS (TTM)
$-0.15
Dividend yield
—
52W range
$1 – $8
Volume
7.6M
CytomX Therapeutics Inc (CTMX) Insider transactions
Net insider activity
Net buying (7,588,403 shares)
Buy transactions
67
Sell transactions
33
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-03-17 | OGDEN, CHRISTOPHER | Chief Financial Officer | Sale | 19,323 | $6.42 | $124111.63 |
| 2026-03-17 | MCCARTHY, SEAN A. | Director, CEO | Sale | 118,969 | $6.42 | $764137.89 |
| 2026-03-17 | CHU, YU-WAYE | Chief Medical Officer | Sale | 21,279 | $6.42 | $136675.02 |
| 2026-03-17 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Sale | 31,492 | $6.42 | $202273.12 |
| 2026-02-02 | OGDEN, CHRISTOPHER | Chief Financial Officer | Buy | 325,000 | — | — |
| 2026-02-02 | OGDEN, CHRISTOPHER | Chief Financial Officer | Buy | 90,000 | — | — |
| 2026-02-02 | MCCARTHY, SEAN A. | Director, CEO | Buy | 980,000 | — | — |
| 2026-02-02 | MCCARTHY, SEAN A. | Director, CEO | Buy | 210,000 | — | — |
| 2026-02-02 | LESTER, RACHAEL | Chief Business Officer | Buy | 50,000 | — | — |
| 2026-02-02 | LESTER, RACHAEL | Chief Business Officer | Buy | 50,000 | — | — |
| 2026-02-02 | LESTER, RACHAEL | Chief Business Officer | Buy | 20,000 | — | — |
| 2026-02-02 | CHU, YU-WAYE | Chief Medical Officer | Buy | 300,000 | — | — |
| 2026-02-02 | CHU, YU-WAYE | Chief Medical Officer | Buy | 75,000 | — | — |
| 2026-02-02 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Buy | 250,000 | — | — |
| 2026-02-02 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Buy | 60,000 | — | — |
| 2025-11-06 | MCCARTHY, SEAN A. | Director, CEO | Sale | 101,793 | $4.54 | $461906.10 |
| 2025-10-20 | LESTER, RACHAEL | Chief Business Officer | Buy | 650,000 | — | — |
| 2025-09-26 | OGDEN, CHRISTOPHER | Chief Financial Officer | Buy | 78,250 | — | — |
| 2025-09-26 | OGDEN, CHRISTOPHER | Chief Financial Officer | Buy | 39,150 | — | — |
| 2025-09-26 | MCCARTHY, SEAN A. | Director, CEO | Buy | 570,000 | — | — |
| 2025-09-26 | MCCARTHY, SEAN A. | Director, CEO | Buy | 285,000 | — | — |
| 2025-09-26 | CHU, YU-WAYE | Chief Medical Officer | Buy | 87,500 | — | — |
| 2025-09-26 | CHU, YU-WAYE | Chief Medical Officer | Buy | 43,750 | — | — |
| 2025-09-26 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Buy | 36,300 | — | — |
| 2025-09-26 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Buy | 18,150 | — | — |
| 2025-06-16 | OGDEN, CHRISTOPHER | Chief Financial Officer | Sale | 10,614 | $2.69 | $28539.98 |
| 2025-06-16 | MCCARTHY, SEAN A. | Director, CEO | Sale | 55,511 | $2.69 | $149263.53 |
| 2025-06-16 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Sale | 13,884 | $2.69 | $37334.08 |
| 2025-06-13 | OGDEN, CHRISTOPHER | Chief Financial Officer | Sale | 37,500 | — | — |
| 2025-06-13 | OGDEN, CHRISTOPHER | Chief Financial Officer | Buy | 37,500 | — | — |
| 2025-06-13 | OGDEN, CHRISTOPHER | Chief Financial Officer | Sale | 1,641 | $2.95 | $4841.44 |
| 2025-06-13 | MCCARTHY, SEAN A. | Director, CEO | Sale | 150,000 | — | — |
| 2025-06-13 | MCCARTHY, SEAN A. | Director, CEO | Buy | 150,000 | — | — |
| 2025-06-13 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Sale | 37,500 | — | — |
| 2025-06-13 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Buy | 37,500 | — | — |
| 2025-06-11 | YOUNG, MATTHEW P. | Director | Buy | 38,000 | — | — |
| 2025-06-11 | SU, ZHEN | Director | Buy | 38,000 | — | — |
| 2025-06-11 | MOHINDRU, MANI | Director | Buy | 38,000 | — | — |
| 2025-06-11 | MEYERS, JAMES R | Director | Buy | 38,000 | — | — |
| 2025-06-11 | JONES, ELAINE V | Director | Buy | 38,000 | — | — |
| 2025-06-11 | GILBERT, HALLEY E | Director | Buy | 38,000 | — | — |
| 2025-06-11 | ASHWORTH, ALAN | Director | Buy | 38,000 | — | — |
| 2025-03-18 | ROWLAND, LLOYD A | General Counsel | Sale | 10,203 | $0.60 | $6111.60 |
| 2025-03-18 | OGDEN, CHRISTOPHER | Chief Financial Officer | Sale | 8,551 | $0.60 | $5122.05 |
| 2025-03-18 | MCCARTHY, SEAN A. | Director, CEO | Sale | 37,656 | $0.60 | $22555.94 |
| 2025-03-18 | CHU, YU-WAYE | Chief Medical Officer | Sale | 4,025 | $0.60 | $2410.97 |
| 2025-03-18 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Sale | 19,512 | $0.60 | $11687.69 |
| 2025-02-04 | OGDEN, CHRISTOPHER | Chief Financial Officer | Buy | 225,000 | — | — |
| 2025-02-04 | OGDEN, CHRISTOPHER | Chief Financial Officer | Buy | 115,000 | — | — |
| 2025-02-04 | OGDEN, CHRISTOPHER | Chief Financial Officer | Buy | 57,500 | — | — |
| 2025-02-04 | OGDEN, CHRISTOPHER | Chief Financial Officer | Buy | 44,000 | — | — |
| 2025-02-04 | MCCARTHY, SEAN A. | Director, CEO | Buy | 800,000 | — | — |
| 2025-02-04 | MCCARTHY, SEAN A. | Director, CEO | Buy | 390,000 | — | — |
| 2025-02-04 | MCCARTHY, SEAN A. | Director, CEO | Buy | 195,000 | — | — |
| 2025-02-04 | MCCARTHY, SEAN A. | Director, CEO | Buy | 180,000 | — | — |
| 2025-02-04 | CHU, YU-WAYE | Chief Medical Officer | Buy | 238,000 | — | — |
| 2025-02-04 | CHU, YU-WAYE | Chief Medical Officer | Buy | 115,000 | — | — |
| 2025-02-04 | CHU, YU-WAYE | Chief Medical Officer | Buy | 57,500 | — | — |
| 2025-02-04 | CHU, YU-WAYE | Chief Medical Officer | Buy | 56,000 | — | — |
| 2025-02-04 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Buy | 150,000 | — | — |
| 2025-02-04 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Buy | 140,000 | — | — |
| 2025-02-04 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Buy | 115,000 | — | — |
| 2025-02-04 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Buy | 57,500 | — | — |
| 2025-02-04 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Buy | 35,000 | — | — |
| 2025-02-04 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Buy | 30,000 | — | — |
| 2024-08-20 | ROWLAND, LLOYD A | General Counsel | Sale | 11,250 | — | — |
| 2024-08-20 | ROWLAND, LLOYD A | General Counsel | Buy | 11,250 | — | — |
| 2024-08-20 | ROWLAND, LLOYD A | General Counsel | Sale | 4,181 | $1.23 | $5138.87 |
| 2024-08-20 | OGDEN, CHRISTOPHER | Chief Financial Officer | Sale | 6,875 | — | — |
| 2024-08-20 | OGDEN, CHRISTOPHER | Chief Financial Officer | Buy | 6,875 | — | — |
| 2024-08-20 | OGDEN, CHRISTOPHER | Chief Financial Officer | Sale | 1,984 | $1.23 | $2438.53 |
| 2024-08-20 | MCCARTHY, SEAN A. | Director, CEO | Sale | 37,500 | — | — |
| 2024-08-20 | MCCARTHY, SEAN A. | Director, CEO | Buy | 37,500 | — | — |
| 2024-08-20 | MCCARTHY, SEAN A. | Director, CEO | Sale | 13,898 | $1.23 | $17082.03 |
| 2024-08-20 | LANDAU, JEFFREY B | Chief Business Officer | Sale | 11,250 | — | — |
| 2024-08-20 | LANDAU, JEFFREY B | Chief Business Officer | Buy | 11,250 | — | — |
| 2024-08-20 | LANDAU, JEFFREY B | Chief Business Officer | Sale | 4,181 | $1.23 | $5138.87 |
| 2024-08-20 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Sale | 11,250 | — | — |
| 2024-08-20 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Buy | 11,250 | — | — |
| 2024-08-20 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Sale | 4,181 | $1.23 | $5138.87 |
| 2024-06-12 | OGDEN, CHRISTOPHER | Chief Financial Officer | Buy | 75,000 | — | — |
| 2024-06-12 | OGDEN, CHRISTOPHER | Chief Financial Officer | Buy | 17,500 | — | — |
| 2024-05-15 | YOUNG, MATTHEW P. | Director | Buy | 38,000 | — | — |
| 2024-05-15 | SU, ZHEN | Director | Buy | 38,000 | — | — |
| 2024-05-15 | MOHINDRU, MANI | Director | Buy | 38,000 | — | — |
| 2024-05-15 | MEYERS, JAMES R | Director | Buy | 38,000 | — | — |
| 2024-05-15 | JONES, ELAINE V | Director | Buy | 38,000 | — | — |
| 2024-05-15 | GILBERT, HALLEY E | Director | Buy | 38,000 | — | — |
| 2024-05-15 | ASHWORTH, ALAN | Director | Buy | 38,000 | — | — |
| 2024-03-26 | MCCARTHY, SEAN A. | Director, CEO | Sale | 109,768 | — | — |
| 2024-03-26 | MCCARTHY, SEAN A. | Director, CEO | Buy | 109,768 | $1.57 | $172873.62 |
| 2024-03-20 | SU, ZHEN | Director | Buy | 76,000 | — | — |
| 2024-03-19 | ROWLAND, LLOYD A | General Counsel | Sale | 5,268 | $2.09 | $10986.41 |
| 2024-03-19 | OGDEN, CHRISTOPHER | SVP, Finance and Accounting | Sale | 2,971 | $2.09 | $6196.02 |
| 2024-03-19 | MCCARTHY, SEAN A. | Director, CEO | Sale | 20,223 | $2.09 | $42175.07 |
| 2024-03-19 | LANDAU, JEFFREY B | Chief Business Officer | Sale | 6,562 | $2.09 | $13685.05 |
| 2024-03-19 | BELVIN, MARCIA | SVP, Chief Scientific Officer | Sale | 12,795 | $2.09 | $26683.97 |
| 2024-01-18 | ROWLAND, LLOYD A | General Counsel | Buy | 100,000 | — | — |
| 2024-01-18 | ROWLAND, LLOYD A | General Counsel | Buy | 75,000 | — | — |
| 2024-01-18 | ROWLAND, LLOYD A | General Counsel | Buy | 25,000 | — | — |