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 |
2021-06-02 Sale |
2021-06-04 7:59 pm |
Semler Scientific Inc. | SMLR | William H.C. Chang & Diana Shon Chang TTEE Chang Family Trust U/A DTD 10/23/2006 Chang William H Chang Diana Shon Chang 2020 Delaware LP 10% Owner |
3,937 | $110.56 | $435,290 | 1,115,705 (Indirect Direct) |
View |
2021-05-28 Sale |
2021-06-02 6:38 pm |
Semler Scientific Inc. | SMLR | William H.C. Chang & Diana Shon Chang TTEE Chang Family Trust U/A DTD 10/23/2006 Chang William H Chang Diana Shon Chang 2020 GP LLC Chang 2020 Delaware LP 10% Owner |
1,063 | $110.04 | $116,971 | 1,117,226 (Indirect 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 |
2025-01-06 Option Award |
2025-01-07 5:35 pm |
N/A 2035-01-06 |
Semler Scientific Inc. | SMLR | Chang William H Director |
8,125 | $0 | 8,125 (Direct) |
View |
2024-05-10 Gift(A) |
2025-01-07 5:34 pm |
N/A N/A |
Semler Scientific Inc. | SMLR | Chang William H Director 10% Owner |
2,182 | $0 | 444,577 (Direct) |
View |
2024-11-07 Option Award(A) |
2025-01-07 5:33 pm |
N/A N/A |
Semler Scientific Inc. | SMLR | Chang William H Director 10% Owner |
1,318 | $0 | 445,895 (Direct) |
View |
2024-11-07 Gift(A) |
2025-01-07 5:33 pm |
N/A N/A |
Semler Scientific Inc. | SMLR | Chang William H Director 10% Owner |
1,318 | $0 | 445,895 (Direct) |
View |
2024-12-16 Gift |
2024-12-17 4:15 pm |
N/A N/A |
Semler Scientific Inc. | SMLR | Chang William H Director |
2,735 | $0 | 884,264 (Indirect) |
View |
2024-11-07 Option Award |
2024-11-12 06:04 am |
N/A N/A |
Semler Scientific Inc. | SMLR | Chang William H Director 10% Owner |
1,318 | $0 | 886,999 (Direct) |
View |
2024-05-24 Option Award |
2024-05-29 4:36 pm |
N/A 2026-05-24 |
Semler Scientific Inc. | SMLR | Chang William H Director 10% Owner |
27,000 | $0 | 27,000 (Direct) |
View |
2024-05-10 Option Award |
2024-05-14 9:35 pm |
N/A N/A |
Semler Scientific Inc. | SMLR | Chang William H Director 10% Owner |
2,182 | $0 | 885,681 (Direct) |
View |
Ownership |
2023-02-14 4:32 pm |
N/A N/A |
Semler Scientific Inc. | SMLR | William H.C. Chang & Diana Shon Chang TTEE Chang Family Trust U/A DTD 10/23/2006 Chang William H Chang Diana Shon 10% Owner |
0 | $0 | 583,499 (Indirect) |
View |
2022-09-30 Ownership |
2023-02-14 4:32 pm |
N/A N/A |
Semler Scientific Inc. | SMLR | William H.C. Chang & Diana Shon Chang TTEE Chang Family Trust U/A DTD 10/23/2006 Chang William H Chang Diana Shon 10% Owner |
1,103,106 | $0 | 583,499 (Direct) |
View |
2022-06-23 Option Award |
2022-06-27 5:47 pm |
N/A 2032-06-23 |
Ensysce Biosciences Inc. | ENSC | Chang William H Director 10% Owner |
15,000 | $0 | 2,630,640 (Direct) |
View |
2022-02-04 Option Award |
2022-02-04 3:24 pm |
N/A 2032-02-04 |
Ensysce Biosciences Inc. | ENSC | Chang William H Director 10% Owner |
20,000 | $0 | 20,000 (Direct) |
View |
2021-06-30 Option Award |
2021-07-02 7:14 pm |
N/A N/A |
Ensysce Biosciences Inc. | ENSC | Chang William H Director 10% Owner |
2,595,640 | $0 | 2,595,640 (Direct) |
View |
2021-04-19 Gift |
2021-06-02 6:38 pm |
N/A N/A |
Semler Scientific Inc. | SMLR | William H.C. Chang & Diana Shon Chang TTEE Chang Family Trust U/A DTD 10/23/2006 Chang William H Chang Diana Shon Chang 2020 GP LLC Chang 2020 Delaware LP 10% Owner |
2,416 | $0 | 1,117,226 (Indirect) |
View |
2020-09-03 Ownership(A) |
2021-03-31 5:06 pm |
N/A N/A |
Semler Scientific Inc. | SMLR | William H.C. Chang & Diana Shon Chang TTEE Chang Family Trust U/A DTD 10/23/2006 Chang William H Chang Diana Shon Chang 2020 GP LLC 10% Owner |
472,906 | $0 | 419,953 (Direct) |
View |
2020-09-03 Ownership |
2021-02-16 5:12 pm |
N/A N/A |
Semler Scientific Inc. | SMLR | William H.C. Chang & Diana Shon Chang TTEE Chang Family Trust U/A DTD 10/23/2006 Chang William H Chang Diana Shon 10% Owner |
472,906 | $0 | 419,953 (Direct) |
View |