Insider holders · CIK 0001023459
Simulations Plus, Inc. · SLP
Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity
| Insider | Direct shares | Indirect shares | Total reported | Last report (ET) | From |
|---|---|---|---|---|---|
| Virginia E Woltosz10% Owner | 3,202,131 | — | 3,202,131 | Jul 6, 2026 · 6:50 pm EDT | Form 4 |
| Walter S WoltoszDirector | 3,202,131 | — | 3,202,131 | Jul 6, 2026 · 6:50 pm EDT | Form 4 |
| John Anthony DiBella IIChief Revenue Officer | 85,140 | — | 85,140 | Aug 4, 2026 · 4:07 pm EDT | Form 4 |
| Thaddeus Henry Grasela Jr.President | 79,763 | — | 79,763 | Mar 13, 2018 · 11:22 am EDT | Form 4 |
| Jill Fiedler-KellyPresident, Services Solutions | 77,817 | — | 77,817 | Jun 17, 2026 · 4:06 pm EDT | Form 4 |
| Argenio David Z Drelationship not stated | 33,608 | — | 33,608 | May 26, 2017 · 11:55 am EDT | Form 4 |
| David L. RalphDirector | 21,006 | — | 21,006 | Feb 12, 2019 · 1:32 pm EST | Form 4 |
| John Kenneth PagliaDirector | 5,006 | — | 5,006 | Feb 12, 2019 · 1:30 pm EST | Form 4 |
| Daniel L WeinerDirector | 5,006 | — | 5,006 | Feb 12, 2019 · 1:34 pm EST | Form 4 |
| John Robert KneiselCFO | 0 | — | 0 | Apr 23, 2018 · 4:12 pm EDT | Form 4 |
Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.