Woltosz Walter S (CIK 0001222526)

Latest company ownership

Shares held
3,288,002
Last filed at
Nov 4, 2025
Confidence Score
47.2
2025Q4
Confidence Score History
2016Q1 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Oct 1, 2025 Oct 3, 2025 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.60% ✓ $307.8K
Jul 1, 2025 Jul 2, 2025 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.60% ✓ $366.6K
Jun 2, 2025 Jun 3, 2025 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.60% ✓ $543.1K
May 1, 2025 May 1, 2025 Simulations Plus, Inc. Director Sell 45.0 -19,214 -0.57% ✓ $670.2K
Apr 1, 2025 Apr 2, 2025 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.59% ✓ $481.8K
Mar 3, 2025 Mar 4, 2025 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.59% ✓ $573.6K
Feb 3, 2025 Feb 4, 2025 Simulations Plus, Inc. Director Sell 45.0 -19,213 -0.56% ✓ $678.2K
Jan 2, 2025 Jan 3, 2025 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.58% ✓ $557.7K
Dec 2, 2024 Dec 3, 2024 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.58% ✓ $635.2K
Nov 1, 2024 Nov 5, 2024 Simulations Plus, Inc. Director Sell 45.0 -19,008 -0.55% ✓ $553.2K
Oct 1, 2024 Oct 2, 2024 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.57% ✓ $625.2K
Sep 3, 2024 Sep 4, 2024 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.57% ✓ $703.7K
Aug 1, 2024 Aug 2, 2024 Simulations Plus, Inc. Director Sell 45.0 -19,265 -0.54% ✓ $792.5K
Jul 1, 2024 Jul 2, 2024 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.56% ✓ $934.2K
Jun 3, 2024 Jun 4, 2024 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.56% ✓ $925K
May 1, 2024 May 2, 2024 Simulations Plus, Inc. Director Sell 45.0 -19,338 -0.54% ✓ $919K
Apr 1, 2024 Apr 2, 2024 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.55% ✓ $798.9K
Mar 1, 2024 Mar 5, 2024 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.55% ✓ $828.2K
Feb 1, 2024 Feb 5, 2024 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.55% ✓ $759.9K
Jan 2, 2024 Jan 4, 2024 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.54% ✓ $889.2K
Dec 1, 2023 Dec 5, 2023 Simulations Plus, Inc. Director Sell 40.0 -60,000 -1.57% ✓ $2.3M
Nov 1, 2023 Nov 3, 2023 Simulations Plus, Inc. Director Sell 40.0 -60,000 -1.56% ✓ $2.1M
Jun 28, 2023 Jun 30, 2023 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.52% ✓ $860.7K
May 30, 2023 May 31, 2023 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.52% ✓ $921.1K
Apr 26, 2023 Apr 27, 2023 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.51% ✓ $830.4K
Mar 29, 2023 Mar 30, 2023 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.51% ✓ $856.2K
Feb 24, 2023 Feb 27, 2023 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.51% ✓ $760.8K
Jan 27, 2023 Jan 31, 2023 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.51% ✓ $794.1K
Dec 28, 2022 Dec 29, 2022 Simulations Plus, Inc. Director Sell 45.0 -20,000 -0.50% ✓ $723K
Nov 28, 2022 Nov 29, 2022 Simulations Plus, Inc. Director Sell 46.3 -20,000 -0.49% ✓ $797.8K
Oct 27, 2022 Oct 31, 2022 Simulations Plus, Inc. Director Sell 46.3 -20,000 -0.49% ✓ $832.8K
Sep 28, 2022 Sep 29, 2022 Simulations Plus, Inc. Director Sell 46.3 -20,000 -0.49% ✓ $991K
Aug 29, 2022 Aug 31, 2022 Simulations Plus, Inc. Director Sell 43.8 -20,000 -0.49% ✓ $1.2M
Jul 27, 2022 Jul 29, 2022 Simulations Plus, Inc. Director Sell 43.8 -20,000 -0.48% ✓ $1.2M
Jun 28, 2022 Jun 30, 2022 Simulations Plus, Inc. Director Sell 46.3 -20,000 -0.48% ✓ $961.4K
May 27, 2022 Jun 1, 2022 Simulations Plus, Inc. Director Sell 46.3 -20,000 -0.48% ✓ $959.7K
Apr 27, 2022 Apr 29, 2022 Simulations Plus, Inc. Director Sell 46.3 -20,000 -0.48% ✓ $937.7K
Mar 29, 2022 Mar 31, 2022 Simulations Plus, Inc. Director Sell 46.3 -20,000 -0.47% ✓ $975K
Feb 24, 2022 Feb 28, 2022 Simulations Plus, Inc. Director Sell 46.3 -20,000 -0.47% ✓ $759.7K
Jan 27, 2022 Jan 28, 2022 Simulations Plus, Inc. Director Sell 46.3 -20,000 -0.47% ✓ $786.5K
Dec 29, 2021 Jan 3, 2022 Simulations Plus, Inc. Director Sell 46.3 -20,000 -0.47% ✓ $974.8K
Nov 26, 2021 Nov 30, 2021 Simulations Plus, Inc. Director Sell 46.3 -20,000 -0.46% ✓ $968.1K
Oct 27, 2021 Oct 29, 2021 Simulations Plus, Inc. Director Sell 46.3 -20,000 -0.45% ✓ $906.4K
Sep 28, 2021 Sep 29, 2021 Simulations Plus, Inc. Director Sell 46.3 -20,000 -0.45% ✓ $770.8K
Aug 31, 2021 Sep 1, 2021 Simulations Plus, Inc. Director Sell 53.8 -1,497 -0.03% ✓ $66K
Aug 27, 2021 Aug 31, 2021 Simulations Plus, Inc. Director Sell 46.3 -18,503 -0.42% ✓ $828.6K
Jul 29, 2021 Aug 2, 2021 Simulations Plus, Inc. Director Sell 46.3 -20,000 -0.45% ✓ $942.7K
Jun 24, 2021 Jun 28, 2021 Simulations Plus, Inc. Director Sell 42.5 -24,000 -0.54% ✓ $1.3M
May 24, 2021 May 26, 2021 Simulations Plus, Inc. Director Sell 42.5 -24,000 -0.53% ✓ $1.2M
Apr 26, 2021 Apr 27, 2021 Simulations Plus, Inc. Director Sell 42.5 -24,000 -0.53% ✓ $1.6M
Mar 25, 2021 Apr 1, 2021 Simulations Plus, Inc. Director Sell 42.5 -24,000 -0.53% ✓ $1.4M
Mar 25, 2021 Mar 25, 2021 Simulations Plus, Inc. Director Buy 77.5 +24,000 0.53% ✓ $1.4M
Feb 22, 2021 Feb 23, 2021 Simulations Plus, Inc. Director Sell 42.5 -24,000 -0.52% ✓ $1.8M
Jan 25, 2021 Jan 25, 2021 Simulations Plus, Inc. Director Sell 42.5 -24,000 -0.52% ✓ $1.8M
Dec 23, 2020 Dec 23, 2020 Simulations Plus, Inc. Director Sell 42.5 -24,000 -0.51% ✓ $1.7M
Oct 27, 2020 Oct 27, 2020 Simulations Plus, Inc. Director Sell 42.5 -24,000 -0.51% ✓ $1.7M
Sep 24, 2020 Sep 24, 2020 Simulations Plus, Inc. Director Sell 42.5 -24,000 -0.50% ✓ $1.6M
Aug 25, 2020 Aug 27, 2020 Simulations Plus, Inc. Director Sell 42.5 -24,000 -0.50% ✓ $1.4M
Aug 26, 2020 Aug 26, 2020 Simulations Plus, Inc. Director Sell 42.5 -24,000 -0.50% ✓ $1.4M
Jul 27, 2020 Jul 28, 2020 Simulations Plus, Inc. Director Sell 43.8 -24,000 -0.50% ✓ $1.6M
Jun 24, 2020 Jun 24, 2020 Simulations Plus, Inc. Director Sell 43.8 -24,000 -0.50% ✓ $1.3M
May 22, 2020 May 26, 2020 Simulations Plus, Inc. Director Sell 46.3 -24,000 -0.49% ✓ $944.4K
Apr 24, 2020 Apr 27, 2020 Simulations Plus, Inc. Director Sell 46.3 -24,000 -0.49% ✓ $990K
Mar 25, 2020 Mar 26, 2020 Simulations Plus, Inc. Director Sell 46.3 -24,000 -0.49% ✓ $761K
Feb 24, 2020 Feb 26, 2020 Simulations Plus, Inc. Director Sell 46.3 -24,000 -0.49% ✓ $880.6K
Jan 27, 2020 Jan 28, 2020 Simulations Plus, Inc. Director Sell 46.3 -24,000 -0.49% ✓ $798.2K
Dec 27, 2019 Dec 27, 2019 Simulations Plus, Inc. Director Sell 46.3 -24,000 -0.48% ✓ $822K
Nov 22, 2019 Nov 26, 2019 Simulations Plus, Inc. Director Sell 46.3 -24,000 -0.47% ✓ $832.1K
Oct 27, 2019 Oct 28, 2019 Simulations Plus, Inc. Director Sell 46.3 -24,000 -0.47% ✓ $802.8K
Sep 24, 2019 Sep 25, 2019 Simulations Plus, Inc. Director Sell 46.3 -24,000 -0.47% ✓ $860.6K
Aug 26, 2019 Aug 28, 2019 Simulations Plus, Inc. Director Buy 67.5 +24,000 0.47% ✓ $869.3K
Jul 26, 2019 Jul 26, 2019 Simulations Plus, Inc. Director Buy 67.5 +24,000 0.47% ✓ $925.2K
Jun 28, 2019 Jun 28, 2019 Simulations Plus, Inc. Director Buy 67.5 +18,500 0.36% ✓ $519.1K
May 28, 2019 May 29, 2019 Simulations Plus, Inc. Director Sell 46.3 -18,500 -0.36% ✓ $474.9K
Apr 26, 2019 Apr 30, 2019 Simulations Plus, Inc. Director Sell 46.3 -18,500 -0.35% ✓ $409K
Mar 27, 2019 Apr 1, 2019 Simulations Plus, Inc. Director Sell 46.3 -18,500 -0.35% ✓ $381.8K
Feb 26, 2019 Feb 28, 2019 Simulations Plus, Inc. Director Buy 67.5 +18,500 0.35% ✓ $382K
Jan 28, 2019 Jan 29, 2019 Simulations Plus, Inc. Director Sell 46.3 -18,500 -0.35% ✓ $345.2K
Nov 27, 2018 Nov 29, 2018 Simulations Plus, Inc. Director Sell 46.3 -18,500 -0.34% ✓ $354.3K
Oct 29, 2018 Nov 1, 2018 Simulations Plus, Inc. Director Sell 46.3 -18,500 -0.34% ✓ $370.2K
Sep 27, 2018 Sep 28, 2018 Simulations Plus, Inc. Director Sell 46.3 -18,500 -0.34% ✓ $368.5K
Aug 27, 2018 Aug 28, 2018 Simulations Plus, Inc. Chair Sell 46.3 -18,500 -0.34% ✓ $376.1K
Jul 27, 2018 Jul 31, 2018 Simulations Plus, Inc. Director Sell 46.3 -18,500 -0.34% ✓ $328.6K
May 29, 2018 May 30, 2018 Simulations Plus, Inc. CEO Sell 46.3 -18,500 -0.34% ✓ $356.5K
Apr 26, 2018 Apr 27, 2018 Simulations Plus, Inc. CEO Sell 46.3 -18,500 -0.34% ✓ $318.2K
Mar 27, 2018 Mar 28, 2018 Simulations Plus, Inc. CEO Sell 46.3 -18,500 -0.34% ✓ $269K
Feb 27, 2018 Feb 27, 2018 Simulations Plus, Inc. CEO Sell 46.3 -18,500 -0.34% ✓ $298.5K
Dec 27, 2017 Dec 29, 2017 Simulations Plus, Inc. CEO Sell 46.3 -18,500 -0.34% ✓ $300.6K
Nov 29, 2017 Nov 29, 2017 Simulations Plus, Inc. CEO Sell 46.3 -18,500 -0.33% ✓ $291.9K
Oct 28, 2017 Oct 30, 2017 Simulations Plus, Inc. CO Sell 46.3 -18,500 -0.33% ✓ $302.8K
Sep 27, 2017 Sep 29, 2017 Simulations Plus, Inc. CO Sell 37.5 -18,500 -0.33% ✗ $285.8K
Aug 28, 2017 Aug 30, 2017 Simulations Plus, Inc. CEO Sell 46.3 -18,500 -0.33% ✓ $261.8K
Jul 27, 2017 Jul 31, 2017 Simulations Plus, Inc. CEO Sell 46.3 -18,500 -0.32% ✓ $278.9K
May 9, 2017 May 11, 2017 Simulations Plus, Inc. CEO Sell 40.0 -19,524 -0.34% ✗ $243.1K
May 4, 2017 May 8, 2017 Simulations Plus, Inc. CEO Sell 37.5 -24,596 -0.42% ✗ $307.9K
Jan 29, 2016 Feb 2, 2016 Simulations Plus, Inc. CEO Sell 30.0 -58,181 -0.98% ✗ $656K
Jan 21, 2016 Jan 25, 2016 Simulations Plus, Inc. CEO Sell 30.0 -32,076 -0.54% ✗ $359.5K