Simulations Plus, Inc.
SEC CIK 1023459 · slp · last insider filing 2026-06-17
Directors (from insider filings)
| Name | Capacity as filed | Filings |
|---|---|---|
| Woltosz Walter S | Director · Secretary-treasurer | filed 2006 - 2026 |
| Woltosz Virginia E | Director · Secretary/Treasurer | filed 2006 - 2026 |
| Weiner Daniel L | Director | filed 2017 - 2026 |
| Paglia John Kenneth | Director | filed 2014 - 2026 |
| Evans Sharlene | Director | filed 2021 - 2026 |
| Lavange Lisa | Director | filed 2019 - 2025 |
| Ralph David L. | Director | filed 2012 - 2021 |
| Grasela Thaddeus Henry Jr | Director · President | filed 2014 - 2018 |
| D Argenio David Z | Director | filed 2006 - 2017 |
| Rosenberger Harold Wayne | Director | filed 2008 - 2015 |
| Weiss Richard R | Director | filed 2006 - 2012 |
Officers (from insider filings)
| Name | Title as filed | Filings |
|---|---|---|
| Fiedler-Kelly Jill | President, Services Solutions | filed 2021 - 2026 |
| Dibella John Anthony II | Vice President Sales & Mktg | filed 2012 - 2026 |
| Oconnor Shawn | Chief Executive Officer | filed 2018 - 2025 |
| Frederick William W | EVP/CFO | filed 2020 - 2025 |
| Szot Daniel | Chief Revenue Officer | filed 2024 - 2024 |
| Raymer Michael E | Business Unit President | filed 2024 - 2024 |
| Chang Steven | President, Immunetrics | filed 2023 - 2023 |
| Howell Brett | President, DILIsym Division | filed 2021 - 2023 |
| Nguyen Nguyen | VP of Human Resources | filed 2021 - 2021 |
| Kneisel John Robert | CFO | filed 2013 - 2020 |
| Beran Momoko A | CFO | filed 2006 - 2013 |
| Creeley Ronald F | Vice President, Marketing | filed 2007 - 2009 |
| Dahlen Jeffrey A | President of Words+ subsidiary | filed 2006 - 2009 |
About this record
From the SEC's insider-transaction filings (Forms 3, 4 and 5). Every reporting director and officer carries a Commission-assigned identifier (CIK), so these footprints are identifier-verified - no name matching involved. Insiders file when they transact, so dates are filing dates: "last filed" never means "served until". This layer is not yet joined to the nonprofit register - identity joins ship only after independent review.
Source: SEC Insider Transactions Data Sets (Forms 3/4/5), US Federal Government public domain.