SLP · Simulations Plus, Inc. · Insider Trading

This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of June 15, 2026 (the "Merger Agreement"), by and among Simulations Plus, Inc. (the "Issuer"), SP Evolution HoldCo II, LLC ("Parent") and SP Evolution BidCo II, LLC, a wholly owned subsidiary of Parent ("Merger Sub"), pursuant to which Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent.

At the effective time of the Merger (the "Effective Time"), each share of common stock of the Issuer ("Company Common Stock") issued and outstanding immediately prior to the Effective Time (other than certain excluded shares specified in the Merger Agreement) was automatically converted into the right to receive $18.50 in cash, without interest (the "Merger Consideration").

This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of June 15, 2026 (the "Merger Agreement"). Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

At the effective time of the Merger (the "Effective Time"), each share of common stock of the Issuer ("Company Common Stock") issued and outstanding immediately prior to the Effective Time (other than certain excluded shares specified in the Merger Agreement) was automatically converted into the right to receive $18.50 in cash, without interest (the "Merger Consideration"). Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option. Each Company Option with an exercise price per share greater than or equal to the Merger Consideration was canceled for no consideration.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of June 15, 2026 (the "Merger Agreement"), by and among Simulations Plus, Inc. (the "Issuer"), SP Evolution HoldCo II, LLC ("Parent") and SP Evolution BidCo II, LLC, a wholly owned subsidiary of Parent ("Merger Sub"), pursuant to which Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent.

At the effective time of the Merger (the "Effective Time"), each share of common stock of the Issuer ("Company Common Stock") issued and outstanding immediately prior to the Effective Time (other than certain excluded shares specified in the Merger Agreement) was automatically converted into the right to receive $18.50 in cash, without interest (the "Merger Consideration").

This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of June 15, 2026 (the "Merger Agreement"), by and among Simulations Plus, Inc. (the "Issuer"), SP Evolution HoldCo II, LLC ("Parent") and SP Evolution BidCo II, LLC, a wholly owned subsidiary of Parent ("Merger Sub"), pursuant to which Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent.

At the effective time of the Merger (the "Effective Time"), each share of common stock of the Issuer ("Company Common Stock") issued and outstanding immediately prior to the Effective Time (other than certain excluded shares specified in the Merger Agreement) was automatically converted into the right to receive $18.50 in cash, without interest (the "Merger Consideration").

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option. Each Company Option with an exercise price per share greater than or equal to the Merger Consideration was canceled for no consideration.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of June 15, 2026 (the "Merger Agreement"), by and among Simulations Plus, Inc. (the "Issuer"), SP Evolution HoldCo II, LLC ("Parent") and SP Evolution BidCo II, LLC, a wholly owned subsidiary of Parent ("Merger Sub"), pursuant to which Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent.

At the effective time of the Merger (the "Effective Time"), each share of common stock of the Issuer ("Company Common Stock") issued and outstanding immediately prior to the Effective Time (other than certain excluded shares specified in the Merger Agreement) was automatically converted into the right to receive $18.50 in cash, without interest (the "Merger Consideration").

The securities reported herein were held jointly by Walter S. Woltosz and Virginia E. Woltosz.

This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of June 15, 2026 (the "Merger Agreement"). Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

At the effective time of the Merger (the "Effective Time"), each share of common stock of the Issuer ("Company Common Stock") issued and outstanding immediately prior to the Effective Time (other than certain excluded shares specified in the Merger Agreement) was automatically converted into the right to receive $18.50 in cash, without interest (the "Merger Consideration"). Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of June 15, 2026 (the "Merger Agreement"). Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of June 15, 2026 (the "Merger Agreement"), by and among Simulations Plus, Inc. (the "Issuer"), SP Evolution HoldCo II, LLC ("Parent") and SP Evolution BidCo II, LLC, a wholly owned subsidiary of Parent ("Merger Sub"), pursuant to which Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent.

At the effective time of the Merger (the "Effective Time"), each share of common stock of the Issuer ("Company Common Stock") issued and outstanding immediately prior to the Effective Time (other than certain excluded shares specified in the Merger Agreement) was automatically converted into the right to receive $18.50 in cash, without interest (the "Merger Consideration").

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option. Each Company Option with an exercise price per share greater than or equal to the Merger Consideration was canceled for no consideration.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option. Each Company Option with an exercise price per share greater than or equal to the Merger Consideration was canceled for no consideration.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of June 15, 2026 (the "Merger Agreement"), by and among Simulations Plus, Inc. (the "Issuer"), SP Evolution HoldCo II, LLC ("Parent") and SP Evolution BidCo II, LLC, a wholly owned subsidiary of Parent ("Merger Sub"), pursuant to which Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent.

At the effective time of the Merger (the "Effective Time"), each share of common stock of the Issuer ("Company Common Stock") issued and outstanding immediately prior to the Effective Time (other than certain excluded shares specified in the Merger Agreement) was automatically converted into the right to receive $18.50 in cash, without interest (the "Merger Consideration").

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

The securities reported herein were held jointly by Walter S. Woltosz and Virginia E. Woltosz.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of June 15, 2026 (the "Merger Agreement"). Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

At the effective time of the Merger (the "Effective Time"), each share of common stock of the Issuer ("Company Common Stock") issued and outstanding immediately prior to the Effective Time (other than certain excluded shares specified in the Merger Agreement) was automatically converted into the right to receive $18.50 in cash, without interest (the "Merger Consideration"). Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option. Each Company Option with an exercise price per share greater than or equal to the Merger Consideration was canceled for no consideration.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of June 15, 2026 (the "Merger Agreement"). Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

At the effective time of the Merger (the "Effective Time"), each share of common stock of the Issuer ("Company Common Stock") issued and outstanding immediately prior to the Effective Time (other than certain excluded shares specified in the Merger Agreement) was automatically converted into the right to receive $18.50 in cash, without interest (the "Merger Consideration"). Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of June 15, 2026 (the "Merger Agreement"). Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

At the effective time of the Merger (the "Effective Time"), each share of common stock of the Issuer ("Company Common Stock") issued and outstanding immediately prior to the Effective Time (other than certain excluded shares specified in the Merger Agreement) was automatically converted into the right to receive $18.50 in cash, without interest (the "Merger Consideration"). Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of June 15, 2026 (the "Merger Agreement"). Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

At the effective time of the Merger (the "Effective Time"), each share of common stock of the Issuer ("Company Common Stock") issued and outstanding immediately prior to the Effective Time (other than certain excluded shares specified in the Merger Agreement) was automatically converted into the right to receive $18.50 in cash, without interest (the "Merger Consideration"). Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of June 15, 2026 (the "Merger Agreement"), by and among Simulations Plus, Inc. (the "Issuer"), SP Evolution HoldCo II, LLC ("Parent") and SP Evolution BidCo II, LLC, a wholly owned subsidiary of Parent ("Merger Sub"), pursuant to which Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent.

At the effective time of the Merger (the "Effective Time"), each share of common stock of the Issuer issued and outstanding immediately prior to the Effective Time (other than certain excluded shares specified in the Merger Agreement) was automatically converted into the right to receive $18.50 in cash, without interest.

Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested in full and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.

Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.

The sale reported in this Form 4 was effected automatically pursuant to a Rule 10b5-1 plan adopted by the reporting person.

These shares were sold in a single transaction at $18.28.

The sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 plan adopted by the reporting person.

These shares were sold in multiple transactions at prices ranging from $18.34 to $18.39, inclusive.

The sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 plan adopted by the reporting persons.

These shares were sold in multiple transactions at prices falling within those ranges set forth in footnotes (3) of this Form 4. The reporting persons undertake to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in the relevant footnotes.

These shares were sold in multiple transactions at prices ranging from $18.36 to $18.49, inclusive.

The number of shares reflects a revision to correct the inadvertent inclusion of 46,492 shares of the issuer's common stock from previously reported holdings of the reporting persons.

Fully Vested

The sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 plan adopted by the reporting persons.

These shares were sold in a single transaction at $18.20.

The sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 plan adopted by the reporting persons.

These shares were sold in a single transaction at $16.51.

Fully Vested

The sale reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 plan adopted by the reporting person.

These shares were sold in a single transaction at $16.50.