Follow the people · Insider
John Anthony DiBella II
John Anthony DiBella II files insider transactions with the SEC as a chief revenue officer of Simulations Plus (SLP). We hold 5 disclosed purchases and sales filed since 19 December 2012, 2 of them in the last 90 days.
- Files forSLP
- Disclosed buys and sells5 in all, 2 in the last 90 days
- Last disclosure4 August 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 19 December 2012 — 3 August 2026Chief Revenue Officer · Simulations Plus (SLP)39 Form 4 lines · source: SEC Form 4
Everything they disclosed
39 entries, newest first — one per disclosure report, one per Form 4 line- ▼ sold on the open market 1,000 shares of Simulations PlusSEC Form 44 August 2026Common Stock · traded 3 August 2026 · filed 4 August 2026
- ▼ sold on the open market 1,000 shares of Simulations PlusSEC Form 48 July 2026Common Stock · traded 6 July 2026 · filed 8 July 2026
- ▼ sold on the open market 1,000 shares of Simulations PlusSEC Form 44 June 2026Common Stock · traded 3 June 2026 · filed 4 June 2026
- ▼ sold on the open market 1,000 shares of Simulations PlusSEC Form 45 May 2026Common Stock · traded 4 May 2026 · filed 5 May 2026
- ▼ sold on the open market 1,000 shares of Simulations PlusSEC Form 416 April 2026Common Stock · traded 15 April 2026 · filed 16 April 2026
- exercised options over 10,300 shares of Simulations PlusSEC Form 49 February 2026Common Stock · traded 6 February 2026 · filed 9 February 2026
- exercised options over 10,300 shares of Simulations Plus (a derivative holding)SEC Form 49 February 2026Stock Options (Right to Buy) · traded 6 February 2026 · filed 9 February 2026
- exercised options over 10,300 shares of Simulations Plus (a derivative holding)SEC Form 49 February 2026Stock Options (Right to Buy) · traded 6 February 2026 · filed 9 February 2026
- exercised options over 10,300 shares of Simulations PlusSEC Form 49 February 2026Common Stock · traded 6 February 2026 · filed 9 February 2026
- was granted 27,500 shares of Simulations Plus (a derivative holding)SEC Form 417 October 2025Stock Options (Right to Buy) · traded 16 October 2025 · filed 17 October 2025
- was granted 7,500 shares of Simulations Plus (a derivative holding)SEC Form 421 October 2024Stock Options (Right to Buy) · traded 17 October 2024 · filed 21 October 2024
- ▼ sold on the open market 5,411 shares of Simulations PlusSEC Form 426 December 2023Common Stock · traded 22 December 2023 · filed 26 December 2023
- exercised options over 5,411 shares of Simulations Plus (a derivative holding)SEC Form 426 December 2023Stock Options (Right to Buy) · traded 22 December 2023 · filed 26 December 2023
- exercised options over 5,411 shares of Simulations PlusSEC Form 426 December 2023Common Stock · traded 22 December 2023 · filed 26 December 2023
- ▼ sold on the open market 5,411 shares of Simulations PlusSEC Form 426 December 2023Common Stock · traded 22 December 2023 · filed 26 December 2023
- was granted 15,000 shares of Simulations Plus (a derivative holding)SEC Form 423 October 2023Stock Options (Right to Buy) · traded 19 October 2023 · filed 23 October 2023
- exercised options over 35,000 shares of Simulations Plus (a derivative holding)SEC Form 424 March 2023Stock Options (Right to Buy) · traded 23 March 2023 · filed 24 March 2023
- exercised options over 35,000 shares of Simulations PlusSEC Form 424 March 2023Common Stock · traded 23 March 2023 · filed 24 March 2023
- exercised options over 15,000 shares of Simulations Plus (a derivative holding)SEC Form 46 March 2023Stock Options (Right to Buy) · traded 2 March 2023 · filed 6 March 2023
- exercised options over 1,352 shares of Simulations Plus (a derivative holding)SEC Form 46 March 2023Stock Options (Right to Buy) · traded 2 March 2023 · filed 6 March 2023
- exercised options over 12,442 shares of Simulations Plus (a derivative holding)SEC Form 46 March 2023Stock Options (Right to Buy) · traded 3 March 2023 · filed 6 March 2023
- exercised options over 15,000 shares of Simulations PlusSEC Form 46 March 2023Common Stock · traded 2 March 2023 · filed 6 March 2023
- exercised options over 1,352 shares of Simulations PlusSEC Form 46 March 2023Common Stock · traded 2 March 2023 · filed 6 March 2023
- ▼ sold on the open market 16,352 shares of Simulations PlusSEC Form 46 March 2023Common Stock · traded 2 March 2023 · filed 6 March 2023
- exercised options over 12,442 shares of Simulations PlusSEC Form 46 March 2023Common Stock · traded 3 March 2023 · filed 6 March 2023
- ▼ sold on the open market 8,120 shares of Simulations PlusSEC Form 46 March 2023Common Stock · traded 3 March 2023 · filed 6 March 2023
- ▼ sold on the open market 4,322 shares of Simulations PlusSEC Form 46 March 2023Common Stock · traded 3 March 2023 · filed 6 March 2023
- was granted 15,000 shares of Simulations Plus (a derivative holding)SEC Form 424 October 2022Stock Options (Right to Buy) · traded 20 October 2022 · filed 24 October 2022
- was granted 9,300 shares of Simulations Plus (a derivative holding)SEC Form 429 January 2021Stock Option · traded 7 December 2020 · filed 29 January 2021
- ▼ sold on the open market 2,360 shares of Simulations PlusSEC Form 429 January 2021Common Stock · traded 27 January 2021 · filed 29 January 2021
- exercised options over 5,000 shares of Simulations Plus (a derivative holding)SEC Form 416 December 2019Stock Option · traded 6 December 2019 · filed 16 December 2019
- exercised options over 5,000 shares of Simulations Plus (a derivative holding)SEC Form 416 January 2019Stock Option · traded 15 January 2019 · filed 16 January 2019
- was granted 8,000 shares of Simulations Plus (a derivative holding)SEC Form 413 December 2018Stock Option · traded 11 December 2018 · filed 13 December 2018
- was granted 40,000 shares of Simulations Plus (a derivative holding)SEC Form 427 February 2017Stock Option · traded 23 February 2017 · filed 27 February 2017
- converted 4,500 shares of Simulations PlusSEC Form 416 December 2014Common Stock · traded 15 December 2014 · filed 16 December 2014
- exercised in-the-money options over 4,500 shares of Simulations Plus (a derivative holding)SEC Form 416 December 2014Stock Option · traded 15 December 2014 · filed 16 December 2014
- was granted 50,000 shares of Simulations Plus (a derivative holding)SEC Form 42 September 2014Option Grant · traded 28 August 2014 · filed 2 September 2014
- exercised in-the-money options over 5,000 shares of Simulations Plus (a derivative holding)SEC Form 419 December 2012Stock Option · traded 19 December 2012 · filed 19 December 2012
- exercised options over 5,000 shares of Simulations PlusSEC Form 419 December 2012Common · traded 19 December 2012 · filed 19 December 2012
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.