SEC Insider Transactions from DiBella John Anthony II.

Last updated: 2026-03-16 13:04 UTC | Total transactions: 20

DiBella John Anthony II has filed 20 insider transactions across 1 company since March 2023.

Most recent transaction: a option exercise of 10300 shares of Simulations Plus, Inc. ($SLP) on February 06, 2026.

Activity breakdown: 0 open-market purchases and 5 sales.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
Feb. 6, 2026 Simulations Plus, Inc. $SLP DiBella John Anthony II Chief Revenue Officer M Stock Options (Right to Buy) 10300 $0.00 0.0000 20,220,000 100.00% 0.05%
Feb. 6, 2026 Simulations Plus, Inc. $SLP DiBella John Anthony II Chief Revenue Officer M Common Stock 10300 $9.71 90,140.0000 20,220,000 12.90% 0.05%
Oct. 16, 2025 Simulations Plus, Inc. $SLP DiBella John Anthony II Chief Revenue Officer A Stock Options (Right to Buy) 27500 $0.00 27,500.0000 20,101,000 9999.99% 0.14%
Oct. 17, 2024 Simulations Plus, Inc. $SLP DiBella John Anthony II Business Unit President A Stock Options (Right to Buy) 7500 $0.00 7,500.0000 20,301,000 9999.99% 0.04%
Dec. 22, 2023 Simulations Plus, Inc. $SLP DiBella John Anthony II Business Unit President S Common Stock 5411 $45.16 74,429.0000 20,465,000 6.78% 0.03%
Dec. 22, 2023 Simulations Plus, Inc. $SLP DiBella John Anthony II Business Unit President S Common Stock 5411 $45.16 79,840.0000 20,465,000 6.35% 0.03%
Dec. 22, 2023 Simulations Plus, Inc. $SLP DiBella John Anthony II Business Unit President M Common Stock 5411 $19.81 85,251.0000 20,465,000 6.78% 0.03%
Dec. 22, 2023 Simulations Plus, Inc. $SLP DiBella John Anthony II Business Unit President M Stock Options (Right to Buy) 5411 $0.00 2,589.0000 20,465,000 67.64% 0.03%
Oct. 19, 2023 Simulations Plus, Inc. $SLP DiBella John Anthony II Business Unit President A Stock Options (Right to Buy) 15000 $0.00 15,000.0000 20,465,000 9999.99% 0.07%
March 23, 2023 Simulations Plus, Inc. $SLP DiBella John Anthony II Division President M Stock Options (Right to Buy) 35000 $0.00 0.0000 0 100.00% 0.00%
March 23, 2023 Simulations Plus, Inc. $SLP DiBella John Anthony II Division President M Common Stock 35000 $6.85 79,840.0000 0 78.06% 0.00%
March 3, 2023 Simulations Plus, Inc. $SLP DiBella John Anthony II Division President S Common Stock 4322 $39.54 44,840.0000 0 8.79% 0.00%
March 2, 2023 Simulations Plus, Inc. $SLP DiBella John Anthony II Division President M Stock Options (Right to Buy) 15000 $0.00 35,000.0000 0 30.00% 0.00%
March 2, 2023 Simulations Plus, Inc. $SLP DiBella John Anthony II Division President M Stock Options (Right to Buy) 1352 $0.00 38,648.0000 0 3.38% 0.00%
March 3, 2023 Simulations Plus, Inc. $SLP DiBella John Anthony II Division President M Stock Options (Right to Buy) 12442 $0.00 26,206.0000 0 32.19% 0.00%
March 2, 2023 Simulations Plus, Inc. $SLP DiBella John Anthony II Division President M Common Stock 15000 $6.85 59,840.0000 0 33.45% 0.00%
March 2, 2023 Simulations Plus, Inc. $SLP DiBella John Anthony II Division President S Common Stock 16352 $38.34 44,840.0000 0 26.72% 0.00%
March 2, 2023 Simulations Plus, Inc. $SLP DiBella John Anthony II Division President M Common Stock 1352 $10.05 61,192.0000 0 2.26% 0.00%
March 3, 2023 Simulations Plus, Inc. $SLP DiBella John Anthony II Division President M Common Stock 12442 $10.05 57,282.0000 0 27.75% 0.00%
March 3, 2023 Simulations Plus, Inc. $SLP DiBella John Anthony II Division President S Common Stock 8120 $39.05 49,162.0000 0 14.18% 0.00%