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 |
2021-06-17 Sale |
2021-06-21 5:47 pm |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
30,000 | $75.07 | $2,252,088 | 503,577 (Indirect) |
View |
2021-04-05 Sale |
2021-04-07 6:15 pm |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
110,000 | $72.85 | $8,013,730 | 533,577 (Indirect) |
View |
2021-03-31 Sale |
2021-04-02 6:05 pm |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
90,000 | $69.43 | $6,248,883 | 643,577 (Indirect) |
View |
2021-03-19 Sale |
2021-03-23 5:29 pm |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
20,000 | $66.65 | $1,332,911 | 733,577 (Indirect) |
View |
2021-03-16 Sale |
2021-03-18 4:14 pm |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
130,000 | $63.92 | $8,310,045 | 753,577 (Indirect) |
View |
2020-10-08 Sale |
2020-10-13 09:33 am |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
50,000 | $54.2 | $2,709,853 | 883,577 (Indirect) |
View |
2020-10-06 Sale |
2020-10-08 4:16 pm |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
50,000 | $53.09 | $2,654,655 | 933,577 (Indirect) |
View |
2020-10-02 Sale |
2020-10-06 4:09 pm |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
50,000 | $52.08 | $2,603,933 | 983,577 (Indirect) |
View |
2020-09-03 Sale |
2020-09-08 4:06 pm |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
25,000 | $46.05 | $1,151,325 | 1,033,577 (Indirect) |
View |
2020-08-19 Sale |
2020-08-21 4:05 pm |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
75,000 | $44.78 | $3,358,500 | 1,058,577 (Indirect) |
View |
2020-08-10 Sale |
2020-08-12 5:58 pm |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
25,000 | $42.01 | $1,050,305 | 1,133,577 (Indirect) |
View |
2020-07-17 Sale |
2020-07-21 4:32 pm |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
25,000 | $43.04 | $1,075,900 | 1,158,577 (Indirect) |
View |
2020-07-09 Sale |
2020-07-13 4:02 pm |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
50,000 | $43.6 | $2,180,185 | 1,183,577 (Indirect) |
View |
2020-06-22 Sale |
2020-06-23 8:20 pm |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
200,000 | $40.71 | $8,141,370 | 1,233,577 (Indirect) |
View |
2020-05-12 Sale |
2020-05-14 4:06 pm |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
250,000 | $34.5 | $8,624,590 | 1,433,577 (Indirect) |
View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date |
Reported DateTime |
Exercisable Expiration |
Company | Symnbol | Insider Relationship |
Shares Traded |
Conversion Price |
Shares Owned |
Filing |
2024-06-20 Option Award |
2024-06-21 5:04 pm |
N/A 2034-06-19 |
NextCure Inc. | NXTC | KABAKOFF DAVID S Director |
28,050 | $0 | 28,050 (Direct) |
View |
2023-06-22 Option Award |
2023-06-23 4:31 pm |
N/A 2033-06-21 |
NextCure Inc. | NXTC | KABAKOFF DAVID S Director |
14,250 | $0 | 14,250 (Direct) |
View |
2022-06-23 Option Award |
2022-06-24 5:21 pm |
N/A 2032-06-22 |
NextCure Inc. | NXTC | KABAKOFF DAVID S Director |
14,250 | $0 | 14,250 (Direct) |
View |
2021-06-24 Option Award |
2021-06-28 6:15 pm |
N/A 2031-06-23 |
NextCure Inc. | NXTC | KABAKOFF DAVID S Director |
14,250 | $0 | 14,250 (Direct) |
View |
2021-06-10 Option Award |
2021-06-14 4:34 pm |
2022-06-10 2031-06-09 |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
4,209 | $0 | 4,209 (Direct) |
View |
2020-06-11 Option Award |
2020-06-15 5:36 pm |
N/A 2030-06-10 |
NextCure Inc. | NXTC | KABAKOFF DAVID S Director |
14,250 | $0 | 14,250 (Direct) |
View |
2020-06-04 Option Award |
2020-06-08 12:24 pm |
2021-06-04 2030-06-03 |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
8,000 | $0 | 8,000 (Direct) |
View |