Virginia E. Woltosz is Director & 10% Owner at Simulations Plus, Inc. (SLP). They have made 54 open-market trades across 2 companies since 2007, most recently 2025-10-01.
CIK 0001222527
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases totalling $1.4M since 2020, against 54 sales. Too few scored purchases to measure a record yet.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 32% | 78% | 64% |
| Avg Move | +3.9% | +0.2% | +5.3% |
| Scored | 50 | 50 | 50 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| SLP | SELL · 10b5-1 | 2025-10-01 | 2025-10-03 | $15.39 | $308K | -2.7% | +5.6% | +12.9% |
| SLP | SELL · 10b5-1 | 2025-06-02 | 2025-06-03 | $27.15 | $543K | -32.0% | -36.7% | -48.7% |
| SLP | SELL · 10b5-1 | 2025-05-01 | 2025-05-01 | $33.51 | $1.3M | -7.8% | -21.8% | -61.3% |
| SLP | SELL · 10b5-1 | 2025-03-03 | 2025-03-04 | $28.68 | $574K | -9.5% | -17.4% | -8.5% |
| SLP | SELL · 10b5-1 | 2025-01-02 | 2025-01-03 | $27.88 | $558K | +2.7% | +17.5% | -18.0% |
| SLP | SELL · 10b5-1 | 2024-12-02 | 2024-12-03 | $31.76 | $635K | -1.4% | -11.0% | -9.0% |
| SLP | SELL · 10b5-1 | 2024-11-01 | 2024-11-05 | $27.66 | $553K | -4.6% | -0.8% | +13.2% |
| SLP | SELL · 10b5-1 | 2024-06-03 | 2024-06-04 | $46.40 | $1.1M | +2.8% | -14.3% | -23.6% |
| SLP | SELL · 10b5-1 | 2024-04-01 | 2024-04-02 | $39.93 | $1.6M | +21.2% | +21.8% | +20.4% |
| SLP | SELL · 10b5-1 | 2024-02-01 | 2024-02-05 | $38.00 | $1.5M | +12.7% | +16.2% | +29.0% |
| SLP | SELL · 10b5-1 | 2024-01-02 | 2024-01-04 | $44.46 | $1.8M | -6.7% | -7.2% | -4.8% |
| SLP | SELL · 10b5-1 | 2023-11-01 | 2023-11-03 | $34.39 | $4.0M | +6.5% | +6.4% | +4.2% |
| SLP | SELL · 10b5-1 | 2023-05-30 | 2023-05-31 | $46.05 | $1.8M | +3.1% | -1.9% | +4.3% |
| SLP | SELL · 10b5-1 | 2023-03-29 | 2023-03-30 | $42.78 | $1.6M | +1.2% | -4.5% | -1.0% |
| SLP | SELL | 2023-02-24 | 2023-02-27 | $38.03 | $1.5M | +4.4% | +12.3% | +22.0% |
| SLP | SELL | 2022-11-28 | 2022-11-29 | $39.87 | $1.6M | -3.4% | -6.2% | -5.2% |
| SLP | SELL | 2022-10-27 | 2022-10-31 | $41.60 | $1.6M | +2.9% | -2.5% | -4.7% |
| SLP | SELL | 2022-09-28 | 2022-09-29 | $49.55 | $2.0M | -0.3% | -13.6% | -23.9% |
| SLP | SELL | 2022-03-29 | 2022-03-31 | $48.74 | $1.9M | +1.5% | -8.0% | -4.1% |
| SLP | SELL | 2022-01-27 | 2022-01-28 | $39.31 | $1.5M | +2.9% | -3.7% | +18.7% |
| SLP | SELL | 2021-12-29 | 2022-01-03 | $48.74 | $1.9M | -5.4% | -17.0% | +4.3% |
| SLP | SELL | 2021-11-26 | 2021-11-30 | $48.40 | $1.9M | -1.4% | +4.5% | -16.3% |
| SLP | SELL | 2021-09-28 | 2021-09-29 | $38.54 | $1.5M | -5.5% | +26.3% | +23.9% |
| SLP | SELL | 2021-08-31 | 2021-09-01 | $44.09 | $128K | -6.8% | -13.4% | +2.2% |
| SLP | SELL | 2021-07-29 | 2021-08-02 | $47.14 | $1.9M | -0.5% | -2.6% | +5.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.