Insider Transactions Reported by 14 Insiders of Simulations Plus, Inc.

Symbol
SLP on Nasdaq
Location
Research Triangle Park, NC

Insiders trading volume in the past year

Simulations Plus, Inc. executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Walter S. Woltosz Director, 10%+ Owner $59,806,851 -$2,369,434 -3.8% 30 Jan 2026
John Anthony DiBella II Chief Revenue Officer $875,259 06 Feb 2026
Jill Fiedler-Kelly President, Services Solutions $755,603 28 Jan 2026
David L. Ralph Director $559,741 30 Nov 2021
Sharlene Evans Director $274,470 30 Jan 2026
Daniel L. Weiner Director $263,058 30 Jan 2026
John Kenneth Paglia Director $227,364 30 Jan 2026
Lisa LaVange Director $168,558 -$38,079 -18% 01 Dec 2025
Steven Chang President, Immunetrics 19 Oct 2023
William W. Frederick Evp/Cfo 16 Oct 2025
Brett Howell Business Unit President 19 Oct 2023
Michael E. Raymer Business Unit President 11 Jun 2024
Daniel Szot Chief Revenue Officer 17 Oct 2024
Shawn Oconnor Chief Executive Officer 16 Oct 2025

Recent Insider Transactions by Companies or Individuals for Simulations Plus, Inc.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
John Anthony DiBella II SLP Common Stock Options Exercise 12.9% 10,300 90,140 06 Feb 2026 Direct
John Anthony DiBella II SLP Stock Options (Right to Buy) Options Exercise -100% -10,300 0 06 Feb 2026 Direct
Sharlene Evans SLP Common Stock Award 13.4% 1,776 15,056 30 Jan 2026 Direct
John Kenneth Paglia SLP Common Stock Award 16.6% 1,776 12,472 30 Jan 2026 Direct
Walter S. Woltosz SLP Common Stock Award 0.05% 1,776 3,280,683 30 Jan 2026 Direct
Daniel L. Weiner SLP Common Stock Award 14% 1,776 14,430 30 Jan 2026 Direct
Jill Fiedler-Kelly SLP Common Stock Options Exercise 13% 8,950 77,817 28 Jan 2026 Direct
Jill Fiedler-Kelly SLP Employee Stock Option (Right to Buy) Options Exercise -100% -8,950 0 28 Jan 2026 Direct
Walter S. Woltosz SLP Common Stock Gift -0.28% -9,095 3,278,907 18 Dec 2025 Direct
Lisa LaVange SLP Common Stock Sale -7.99% $14,644 $16.91 -866 9,968 01 Dec 2025 Direct
Sharlene Evans SLP Common Stock Award 15.4% 1,771 13,280 03 Nov 2025 Direct
Lisa LaVange SLP Common Stock Award 19.5% 1,771 10,834 03 Nov 2025 Direct
John Kenneth Paglia SLP Common Stock Award 19.8% 1,771 10,696 03 Nov 2025 Direct
Walter S. Woltosz SLP Common Stock Award 0.05% 1,771 3,288,002 03 Nov 2025 Direct
Daniel L. Weiner SLP Common Stock Award 16.3% 1,771 12,654 03 Nov 2025 Direct
Shawn Oconnor SLP Stock Options (Right to Buy) Award 50,000 50,000 16 Oct 2025 Direct
William W. Frederick SLP Stock Options (Right to Buy) Award 32,500 32,500 16 Oct 2025 Direct
Jill Fiedler-Kelly SLP Stock Options (Right to Buy) Award 27,500 27,500 16 Oct 2025 Direct
John Anthony DiBella II SLP Stock Options (Right to Buy) Award 27,500 27,500 16 Oct 2025 Direct
Walter S. Woltosz SLP Common Stock Sale -0.6% $307,800 $15.39 -20,000 3,286,231 01 Oct 2025 Direct
Lisa LaVange SLP Common Stock Sale -8.73% $12,225 $14.10 -867 9,063 02 Sep 2025 Direct
Walter S. Woltosz SLP Common Stock Award 0.06% 2,074 3,306,231 01 Aug 2025 Direct
Daniel L. Weiner SLP Common Stock Award 23.5% 2,074 10,883 01 Aug 2025 Direct
John Kenneth Paglia SLP Common Stock Award 30.3% 2,074 8,925 01 Aug 2025 Direct
Sharlene Evans SLP Common Stock Award 22% 2,074 11,509 01 Aug 2025 Direct
Lisa LaVange SLP Common Stock Sale -8.03% $11,210 $12.93 -867 9,930 01 Aug 2025 Direct
Lisa LaVange SLP Common Stock Award 23.8% 2,074 10,797 01 Aug 2025 Direct
Walter S. Woltosz SLP Common Stock Sale -0.6% $366,623 $18.33 -20,000 3,304,157 01 Jul 2025 Direct
Walter S. Woltosz SLP Common Stock Sale -0.6% $543,074 $27.15 -20,000 3,324,157 02 Jun 2025 Direct
Walter S. Woltosz SLP Common Stock Sale -0.59% $670,150 $33.51 -20,000 3,344,157 01 May 2025 Direct
Walter S. Woltosz SLP Common Stock Award 0.02% 786 3,364,157 01 May 2025 Direct
Sharlene Evans SLP Common Stock Award 9.09% 786 9,435 01 May 2025 Direct
Lisa LaVange SLP Common Stock Award 9.9% 786 8,723 01 May 2025 Direct
Daniel L. Weiner SLP Common Stock Award 9.8% 786 8,809 01 May 2025 Direct
John Kenneth Paglia SLP Common Stock Award 13% 786 6,851 01 May 2025 Direct
Walter S. Woltosz SLP Common Stock Sale -0.59% $481,786 $24.09 -20,000 3,363,371 01 Apr 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.