SLP (Simulations Plus, Inc.)
Insider Trading Activity
Every open-market purchase and sale reported by SLP officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-04 | John Anthony II DiBella | Chief Revenue Officer | Sell | — | — |
| 2026-07-08 | John Anthony II DiBella | Chief Revenue Officer | Sell | — | — |
| 2026-07-06 | WALTER S WOLTOSZ | Director | Sell | — | — |
| 2026-06-17 | Jill Fiedler-Kelly | President, Services Solutions | MIXED | — | — |
| 2026-06-16 | Jill Fiedler-Kelly | President, Services Solutions | MIXED | — | — |
| 2026-06-04 | John Anthony II DiBella | Chief Revenue Officer | Sell | — | — |
| 2026-06-02 | WALTER S WOLTOSZ | Director | Sell | — | — |
| 2026-05-13 | Jill Fiedler-Kelly | President, Services Solutions | MIXED | — | — |
| 2026-05-05 | WALTER S WOLTOSZ | Director | Sell | — | — |
| 2026-05-05 | John Anthony II DiBella | Chief Revenue Officer | Sell | — | — |
| 2026-05-01 | DANIEL L WEINER | Director | A | — | — |
| 2026-05-01 | John Kenneth Paglia | Director | A | — | — |
| 2026-05-01 | Sharlene Evans | Director | A | — | — |
| 2026-05-01 | WALTER S WOLTOSZ | Director | A | — | — |
| 2026-04-16 | John Anthony II DiBella | Chief Revenue Officer | Sell | — | — |
| 2026-02-09 | John Anthony II DiBella | Chief Revenue Officer | M | — | — |
| 2026-02-02 | Sharlene Evans | Director | A | — | — |
| 2026-02-02 | WALTER S WOLTOSZ | Director | A | — | — |
| 2026-02-02 | John Kenneth Paglia | Director | A | — | — |
| 2026-02-02 | DANIEL L WEINER | Director | A | — | — |
| 2026-01-29 | Jill Fiedler-Kelly | President, Services Solutions | M | — | — |
| 2025-12-22 | WALTER S WOLTOSZ | Director | G | — | — |
| 2025-12-02 | Lisa LaVange | Director | Sell | — | — |
| 2025-11-04 | Sharlene Evans | Director | A | — | — |
| 2025-11-04 | John Kenneth Paglia | Director | A | — | — |
| 2025-11-04 | Lisa LaVange | Director | A | — | — |
| 2025-11-04 | DANIEL L WEINER | Director | A | — | — |
| 2025-11-04 | WALTER S WOLTOSZ | Director | A | — | — |
| 2025-10-17 | WILLIAM W FREDERICK | EVP/CFO | A | — | — |
| 2025-10-17 | SHAWN OCONNOR | Chief Executive Officer | A | — | — |
| 2025-10-17 | Jill Fiedler-Kelly | President, Services Solutions | A | — | — |
| 2025-10-17 | John Anthony II DiBella | Chief Revenue Officer | A | — | — |
| 2025-10-03 | WALTER S WOLTOSZ | Director | Sell | — | — |
| 2025-09-04 | Lisa LaVange | Director | Sell | — | — |
| 2025-08-04 | DANIEL L WEINER | Director | A | — | — |
| 2025-08-04 | Lisa LaVange | Director | MIXED | — | — |
| 2025-08-04 | WALTER S WOLTOSZ | Director | A | — | — |
| 2025-08-04 | John Kenneth Paglia | Director | A | — | — |
| 2025-08-04 | Sharlene Evans | Director | A | — | — |
| 2025-07-02 | WALTER S WOLTOSZ | Director | Sell | — | — |
| 2025-06-03 | WALTER S WOLTOSZ | Director | Sell | — | — |
| 2025-05-01 | John Kenneth Paglia | Director | A | — | — |
| 2025-05-01 | Lisa LaVange | Director | A | — | — |
| 2025-05-01 | Sharlene Evans | Director | A | — | — |
| 2025-05-01 | WALTER S WOLTOSZ | Director | MIXED | — | — |
| 2025-05-01 | DANIEL L WEINER | Director | A | — | — |
| 2025-04-02 | WALTER S WOLTOSZ | Director | Sell | — | — |
| 2025-03-04 | WALTER S WOLTOSZ | Director | Sell | — | — |
| 2025-02-04 | Sharlene Evans | Director | A | — | — |
| 2025-02-04 | WALTER S WOLTOSZ | Director | MIXED | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | 10%+ Owner | 3,462,584 | — |
| — | Director | 3,202,131 | — |
| — | Vice President, Marketing | 704,595 | — |
| — | CFO | 368,381 | — |
| — | President of Words+ subsidiary | 195,000 | — |
| — | President, Services Solutions | 85,167 | — |
| — | Chief Revenue Officer | 85,140 | — |
| — | President | 79,763 | — |
| — | Director | 34,812 | — |
| — | Director | 33,608 | — |
| — | Director | 17,173 | — |
| — | Director | 16,547 | — |
| — | Director | 14,589 | — |
| — | Director | 12,797 | — |
| — | Director | 9,968 | — |
| — | CFO | 3,400 | — |
| — | Director | 3,000 | — |
| — | EVP/CFO | 2,100 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the SLP quote page; the site-wide leaderboard is on the insider transactions hub.