Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date |
Reported DateTime |
Company | Symbol | Insider Relationship |
Shares Traded |
Average Price |
Total Amount |
Shares Owned |
Filing |
2025-03-18 Sale |
2025-03-20 4:31 pm |
CytomX Therapeutics Inc. | CTMX | BELVIN MARCIA SVP, Chief Scientific Officer |
19,512 | $0.599 | $11,688 | 248,636 (Direct) |
View |
2024-08-20 Sale |
2024-08-22 6:01 pm |
CytomX Therapeutics Inc. | CTMX | BELVIN MARCIA SVP, Chief Scientific Officer |
4,181 | $1.2291 | $5,139 | 175,648 (Direct) |
View |
2024-03-19 Sale |
2024-03-21 4:37 pm |
CytomX Therapeutics Inc. | CTMX | BELVIN MARCIA SVP, Chief Scientific Officer |
12,795 | $2.0855 | $26,684 | 168,579 (Direct) |
View |
2023-12-20 Sale |
2023-12-22 4:14 pm |
CytomX Therapeutics Inc. | CTMX | BELVIN MARCIA SVP, Chief Scientific Officer |
4,077 | $1.3805 | $5,628 | 155,124 (Direct) |
View |
2023-09-22 Sale |
2023-09-22 7:16 pm |
CytomX Therapeutics Inc. | CTMX | BELVIN MARCIA SVP, Chief Scientific Officer |
4,119 | $1.3003 | $5,356 | 147,951 (Direct) |
View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date |
Reported DateTime |
Exercisable Expiration |
Company | Symnbol | Insider Relationship |
Shares Traded |
Conversion Price |
Shares Owned |
Filing |
2025-02-04 Option Award(A) |
2025-02-10 5:58 pm |
N/A 2035-02-03 |
CytomX Therapeutics Inc. | CTMX | BELVIN MARCIA SVP, Chief Scientific Officer |
357,500 | $0 | 533,148 (Direct) |
View |
2025-02-04 Option Award |
2025-02-06 5:57 pm |
N/A 2035-02-03 |
CytomX Therapeutics Inc. | CTMX | BELVIN MARCIA SVP, Chief Scientific Officer |
342,500 | $0 | 518,148 (Direct) |
View |
2024-08-20 Exercise |
2024-08-22 6:01 pm |
N/A N/A |
CytomX Therapeutics Inc. | CTMX | BELVIN MARCIA SVP, Chief Scientific Officer |
11,250 | $0 | 175,648 (Direct) |
View |
2024-01-18 Option Award |
2024-01-19 8:38 pm |
N/A 2034-01-17 |
CytomX Therapeutics Inc. | CTMX | BELVIN MARCIA SVP, Chief Scientific Officer |
223,750 | $0 | 378,874 (Direct) |
View |
2023-12-17 Exercise |
2023-12-19 7:54 pm |
N/A N/A |
CytomX Therapeutics Inc. | CTMX | BELVIN MARCIA SVP, Chief Scientific Officer |
11,250 | $0 | 170,451 (Direct) |
View |
2023-09-20 Option Award |
2023-09-22 7:16 pm |
N/A N/A |
CytomX Therapeutics Inc. | CTMX | BELVIN MARCIA SVP, Chief Scientific Officer |
11,250 | $0 | 147,951 (Direct) |
View |
2023-03-22 Option Award |
2023-03-29 7:54 pm |
N/A N/A |
CytomX Therapeutics Inc. | CTMX | BELVIN MARCIA SVP, Chief Scientific Officer |
60,000 | $0 | 140,820 (Direct) |
View |
Ownership |
2023-03-29 7:50 pm |
N/A N/A |
CytomX Therapeutics Inc. | CTMX | BELVIN MARCIA SVP, Chief Scientific Officer |
0 | $0 | 881,310 (Direct) |
View |