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 |
2025-04-01 Sale |
2025-04-02 4:20 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $24.09 | $481,786 | 3,363,371 (Direct) |
View |
2025-03-03 Sale |
2025-03-04 5:08 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $28.68 | $573,600 | 3,383,371 (Direct) |
View |
2025-02-03 Sale |
2025-02-04 5:33 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $33.91 | $678,243 | 3,403,371 (Direct) |
View |
2025-01-02 Sale |
2025-01-03 4:36 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $27.88 | $557,662 | 3,422,584 (Direct) |
View |
2024-12-02 Sale |
2024-12-03 5:35 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $31.76 | $635,200 | 3,442,584 (Direct) |
View |
2024-11-01 Sale |
2024-11-05 08:02 am |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $27.66 | $553,200 | 3,462,584 (Direct) |
View |
2024-10-01 Sale |
2024-10-02 4:34 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $31.26 | $625,200 | 3,481,592 (Direct) |
View |
2024-09-03 Sale |
2024-09-04 4:11 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $35.18 | $703,677 | 3,501,592 (Direct) |
View |
2024-08-01 Sale |
2024-08-02 4:19 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $39.63 | $792,547 | 3,521,592 (Direct) |
View |
2024-07-01 Sale |
2024-07-02 4:10 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $46.71 | $934,227 | 3,540,857 (Direct) |
View |
2024-06-03 Sale |
2024-06-04 5:04 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $46.25 | $924,978 | 3,560,857 (Direct) |
View |
2024-05-01 Sale |
2024-05-02 4:37 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $45.95 | $918,984 | 3,580,857 (Direct) |
View |
2024-04-01 Sale |
2024-04-02 4:32 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $39.94 | $798,867 | 3,600,195 (Direct) |
View |
2024-03-01 Sale |
2024-03-05 4:22 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $41.41 | $828,240 | 3,620,195 (Direct) |
View |
2024-02-01 Sale |
2024-02-05 5:04 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $38 | $759,948 | 3,640,195 (Direct) |
View |
2024-01-02 Sale |
2024-01-04 6:36 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $44.46 | $889,200 | 3,659,403 (Direct) |
View |
2023-12-01 Sale |
2023-12-05 6:04 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
60,000 | $38.72 | $2,323,472 | 3,764,403 (Direct) |
View |
2023-11-01 Sale |
2023-11-03 4:04 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
60,000 | $34.39 | $2,063,635 | 3,777,911 (Direct) |
View |
2023-06-28 Sale |
2023-06-30 4:07 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $43.03 | $860,687 | 3,836,458 (Direct) |
View |
2023-05-30 Sale |
2023-05-31 4:28 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $46.05 | $921,074 | 3,856,458 (Direct) |
View |
2023-04-26 Sale |
2023-04-27 5:16 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $41.52 | $830,441 | 3,875,739 (Direct) |
View |
2023-03-29 Sale |
2023-03-30 4:23 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $42.81 | $856,197 | 3,895,739 (Direct) |
View |
2023-02-24 Sale |
2023-02-27 07:54 am |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $38.04 | $760,756 | 3,915,739 (Direct) |
View |
2023-01-27 Sale |
2023-01-31 5:48 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $39.71 | $794,125 | 3,935,010 (Direct) |
View |
2022-12-28 Sale |
2022-12-29 4:03 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $36.15 | $722,979 | 3,955,010 (Direct) |
View |
2022-11-28 Sale |
2022-11-29 4:05 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $39.89 | $797,809 | 4,070,010 (Direct) |
View |
2022-10-27 Sale |
2022-10-31 4:48 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $41.64 | $832,767 | 4,089,307 (Direct) |
View |
2022-09-28 Sale |
2022-09-29 4:25 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $49.55 | $990,953 | 4,077,907 (Direct) |
View |
2022-08-29 Sale |
2022-08-31 4:30 pm |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $61.41 | $1,228,270 | 4,097,907 (Direct) |
View |
2022-07-27 Sale |
2022-07-29 11:43 am |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
20,000 | $61.19 | $1,223,782 | 4,117,634 (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 |
2025-02-03 Option Award |
2025-02-04 5:33 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
787 | $0 | 3,403,371 (Direct) |
View |
2024-11-01 Option Award |
2024-11-05 08:02 am |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
992 | $0 | 3,462,584 (Direct) |
View |
2024-08-01 Option Award |
2024-08-02 4:19 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
735 | $0 | 3,521,592 (Direct) |
View |
2024-05-01 Option Award |
2024-05-02 4:37 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
662 | $0 | 3,580,857 (Direct) |
View |
2024-02-01 Option Award |
2024-02-02 4:39 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
792 | $0 | 3,660,195 (Direct) |
View |
2023-12-14 Gift |
2023-12-15 4:19 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
85,000 | $0 | 3,679,403 (Direct) |
View |
2023-11-01 Option Award |
2023-11-01 5:27 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
851 | $0 | 3,837,911 (Direct) |
View |
2023-08-01 Option Award |
2023-08-02 4:13 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
602 | $0 | 3,837,060 (Direct) |
View |
2023-05-01 Option Award |
2023-05-02 5:46 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
719 | $0 | 3,876,458 (Direct) |
View |
2023-02-01 Option Award |
2023-02-02 4:34 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
729 | $0 | 3,935,739 (Direct) |
View |
2022-12-12 Gift |
2022-12-13 6:23 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
95,000 | $0 | 3,975,010 (Direct) |
View |
2022-11-11 Option Award |
2022-11-14 4:20 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
703 | $0 | 4,090,010 (Direct) |
View |
2022-10-11 Exercise |
2022-10-12 7:43 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
7,200 | $17.71 | 4,208,307 (Direct) |
View |
2022-10-11 Exercise |
2022-10-12 7:43 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
3,600 | $10.01 | 4,208,307 (Direct) |
View |
2022-10-11 Exercise |
2022-10-12 7:43 pm |
N/A 2026-11-30 |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
31,400 | $0 | 4,208,307 (Direct) |
View |
2022-10-11 Exercise |
2022-10-12 7:43 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
3,600 | $9.82 | 4,208,307 (Direct) |
View |
2022-10-11 Exercise |
2022-10-12 7:43 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
12,000 | $22.24 | 4,208,307 (Direct) |
View |
2022-10-11 Exercise |
2022-10-12 7:43 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
5,000 | $34.23 | 4,208,307 (Direct) |
View |
2022-08-01 Option Award |
2022-08-02 5:15 pm |
N/A N/A |
Simulations Plus Inc. | SLP | WOLTOSZ WALTER S WOLTOSZ VIRGINIA E Director 10% Owner |
273 | $0 | 4,117,907 (Direct) |
View |