SIMULATIONS PLUS INC (SLP) — insider trading
Health Care · NASDAQ
SIMULATIONS PLUS INC (SLP) has 61 reported SEC Form 4 insider transactions in our data, including 11 open-market sales among the most recent 61 (latest 2026-10-06).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-10-06 | WEINER DANIEL L | Director | Disposition to the issuer (derivative) | 5,000 | — | — | Form 4 |
| 2026-10-06 | WEINER DANIEL L | Director | Disposition to the issuer (derivative) | 2,000 | — | — | Form 4 |
| 2026-10-06 | WEINER DANIEL L | Director | Disposition to the issuer | 16,547 | $18.50 | $306.1K | Form 4 |
| 2026-10-06 | WOLTOSZ WALTER S; WOLTOSZ VIRGINIA E | Director, 10% owner | Disposition to the issuer (derivative) | 5,000 | — | — | Form 4 |
| 2026-10-06 | WOLTOSZ WALTER S; WOLTOSZ VIRGINIA E | Director, 10% owner | Disposition to the issuer | 3,202,131 | $18.50 | $59.24M | Form 4 |
| 2026-10-06 | Paglia John Kenneth | Director | Disposition to the issuer (derivative) | 5,000 | — | — | Form 4 |
| 2026-10-06 | Paglia John Kenneth | Director | Disposition to the issuer (derivative) | 6,000 | — | — | Form 4 |
| 2026-10-06 | Paglia John Kenneth | Director | Disposition to the issuer | 14,589 | $18.50 | $269.9K | Form 4 |
| 2026-10-06 | OCONNOR SHAWN | Officer (Chief Executive Officer) | Disposition to the issuer (derivative) | 32,500 | — | — | Form 4 |
| 2026-10-06 | OCONNOR SHAWN | Officer (Chief Executive Officer) | Disposition to the issuer (derivative) | 50,000 | — | — | Form 4 |
| 2026-10-06 | OCONNOR SHAWN | Officer (Chief Executive Officer) | Disposition to the issuer (derivative) | 50,000 | — | — | Form 4 |
| 2026-10-06 | OCONNOR SHAWN | Officer (Chief Executive Officer) | Disposition to the issuer (derivative) | 25,000 | — | — | Form 4 |
| 2026-10-06 | OCONNOR SHAWN | Officer (Chief Executive Officer) | Disposition to the issuer (derivative) | 20,000 | — | — | Form 4 |
| 2026-10-06 | OCONNOR SHAWN | Officer (Chief Executive Officer) | Disposition to the issuer (derivative) | 20,000 | — | — | Form 4 |
| 2026-10-06 | OCONNOR SHAWN | Officer (Chief Executive Officer) | Disposition to the issuer (derivative) | 50,000 | — | — | Form 4 |
| 2026-10-06 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Disposition to the issuer (derivative) | 5,000 | — | — | Form 4 |
| 2026-10-06 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Disposition to the issuer (derivative) | 9,300 | — | — | Form 4 |
| 2026-10-06 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Disposition to the issuer (derivative) | 5,000 | — | — | Form 4 |
| 2026-10-06 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Disposition to the issuer (derivative) | 7,000 | — | — | Form 4 |
| 2026-10-06 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Disposition to the issuer (derivative) | 7,500 | — | — | Form 4 |
| 2026-10-06 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Disposition to the issuer (derivative) | 15,000 | — | — | Form 4 |
| 2026-10-06 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Disposition to the issuer (derivative) | 15,000 | — | — | Form 4 |
| 2026-10-06 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Disposition to the issuer (derivative) | 27,500 | — | — | Form 4 |
| 2026-10-06 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Disposition to the issuer | 77,817 | $18.50 | $1.44M | Form 4 |
| 2026-10-06 | FREDERICK WILLIAM W | Officer (EVP/CFO) | Disposition to the issuer (derivative) | 10,000 | — | — | Form 4 |
| 2026-10-06 | FREDERICK WILLIAM W | Officer (EVP/CFO) | Disposition to the issuer (derivative) | 25,000 | — | — | Form 4 |
| 2026-10-06 | FREDERICK WILLIAM W | Officer (EVP/CFO) | Disposition to the issuer (derivative) | 20,000 | — | — | Form 4 |
| 2026-10-06 | FREDERICK WILLIAM W | Officer (EVP/CFO) | Disposition to the issuer (derivative) | 20,000 | — | — | Form 4 |
| 2026-10-06 | FREDERICK WILLIAM W | Officer (EVP/CFO) | Disposition to the issuer (derivative) | 32,500 | — | — | Form 4 |
| 2026-10-06 | FREDERICK WILLIAM W | Officer (EVP/CFO) | Disposition to the issuer | 2,100 | $18.50 | $38.9K | Form 4 |
| 2026-10-06 | Evans Sharlene | Director | Disposition to the issuer | 17,173 | $18.50 | $317.7K | Form 4 |
| 2026-10-06 | DiBella John Anthony II | Officer (Chief Revenue Officer) | Disposition to the issuer (derivative) | 7,500 | — | — | Form 4 |
| 2026-10-06 | DiBella John Anthony II | Officer (Chief Revenue Officer) | Disposition to the issuer (derivative) | 2,589 | — | — | Form 4 |
| 2026-10-06 | DiBella John Anthony II | Officer (Chief Revenue Officer) | Disposition to the issuer (derivative) | 15,000 | — | — | Form 4 |
| 2026-10-06 | DiBella John Anthony II | Officer (Chief Revenue Officer) | Disposition to the issuer (derivative) | 15,000 | — | — | Form 4 |
| 2026-10-06 | DiBella John Anthony II | Officer (Chief Revenue Officer) | Disposition to the issuer (derivative) | 113,300 | — | — | Form 4 |
| 2026-10-06 | DiBella John Anthony II | Officer (Chief Revenue Officer) | Disposition to the issuer (derivative) | 9,300 | — | — | Form 4 |
| 2026-10-06 | DiBella John Anthony II | Officer (Chief Revenue Officer) | Disposition to the issuer (derivative) | 26,206 | — | — | Form 4 |
| 2026-10-06 | DiBella John Anthony II | Officer (Chief Revenue Officer) | Disposition to the issuer (derivative) | 27,500 | — | — | Form 4 |
| 2026-10-06 | DiBella John Anthony II | Officer (Chief Revenue Officer) | Disposition to the issuer | 85,140 | $18.50 | $1.58M | Form 4 |
| 2026-08-03 | DiBella John Anthony II | Officer (Chief Revenue Officer) | Open-market sale | 1,000 | $18.28 | $18.3K | Form 4 |
| 2026-07-06 | DiBella John Anthony II | Officer (Chief Revenue Officer) | Open-market sale | 1,000 | $18.36 | $18.4K | Form 4 |
| 2026-07-01 | WOLTOSZ WALTER S; WOLTOSZ VIRGINIA E | Director, 10% owner | Open-market sale | 4,177 | $18.44 | $77.0K | Form 4 |
| 2026-06-16 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Option exercise / conversion (derivative) | 7,350 | — | $0 | Form 4 |
| 2026-06-16 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Open-market sale | 7,350 | $18.20 | $133.8K | Form 4 |
| 2026-06-16 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Option exercise / conversion | 7,350 | $10.05 | $73.9K | Form 4 |
| 2026-06-15 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Option exercise / conversion (derivative) | 1,050 | — | $0 | Form 4 |
| 2026-06-15 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Open-market sale | 1,050 | $16.51 | $17.3K | Form 4 |
| 2026-06-15 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Option exercise / conversion | 1,050 | $10.05 | $10.6K | Form 4 |
| 2026-06-03 | DiBella John Anthony II | Officer (Chief Revenue Officer) | Open-market sale | 1,000 | $16.50 | $16.5K | Form 4 |
| 2026-06-01 | WOLTOSZ WALTER S; WOLTOSZ VIRGINIA E | Director, 10% owner | Open-market sale | 15,000 | $17.43 | $261.4K | Form 4 |
| 2026-05-11 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Option exercise / conversion (derivative) | 1,000 | — | $0 | Form 4 |
| 2026-05-11 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Open-market sale | 1,000 | $16.53 | $16.5K | Form 4 |
| 2026-05-11 | Fiedler-Kelly Jill | Officer (President, Services Solutions) | Option exercise / conversion | 1,000 | $10.05 | $10.1K | Form 4 |
| 2026-05-04 | WOLTOSZ WALTER S; WOLTOSZ VIRGINIA E | Director, 10% owner | Open-market sale | 15,000 | $15.13 | $226.9K | Form 4 |
| 2026-05-04 | DiBella John Anthony II | Officer (Chief Revenue Officer) | Open-market sale | 1,000 | $14.98 | $15.0K | Form 4 |
| 2026-05-01 | Paglia John Kenneth | Director | Grant / award / vesting | 2,117 | — | $0 | Form 4 |
| 2026-05-01 | WEINER DANIEL L | Director | Grant / award / vesting | 2,117 | — | $0 | Form 4 |
| 2026-05-01 | WOLTOSZ WALTER S | Director, 10% owner | Grant / award / vesting | 2,117 | — | $0 | Form 4 |
| 2026-05-01 | Evans Sharlene | Director | Grant / award / vesting | 2,117 | — | $0 | Form 4 |
| 2026-04-15 | DiBella John Anthony II | Officer (Chief Revenue Officer) | Open-market sale | 1,000 | $13.37 | $13.4K | Form 4 |
Ask the chat about SLP's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: SIMULATIONS PLUS INC (SLP).
Last updated 2026-10-06 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.