Simulations Plus insider plans Rule 144 stock sale

Simulations Plus, Inc. (SLP) reporting person John Anthony DiBella II filed a notice of proposed sale under Rule 144 covering 3,000 shares of common stock held through Morgan Stanley Smith Barney LLC Executive Financial Services.

Rhea-AI Filing Summary

Simulations Plus, Inc. (SLP) reporting person John Anthony DiBella II filed a notice of proposed sale under Rule 144 covering 3,000 shares of common stock held through Morgan Stanley Smith Barney LLC Executive Financial Services. The shares relate to previously exercised options, with an indicated aggregate value of $54,690.00. The filing also lists recent activity under a Rule 10b5-1 trading plan, including sales of 1,000 common shares each on May 4, 2026 for $14,980.00, June 3, 2026 for $16,500.00, and July 6, 2026 for $18,356.50.

Key Figures

Shares proposed for sale: 3,000 shares Proposed sale value: $54,690.00 10b5-1 sale May 4, 2026: 1,000 shares; $14,980.00 +2 more

5 metrics

Shares proposed for sale 3,000 shares Common stock under Rule 144 related to previously exercised options

Proposed sale value $54,690.00 Aggregate value for 3,000 common shares in Rule 144 notice

10b5-1 sale May 4, 2026 1,000 shares; $14,980.00 Common stock sold under 10b5-1 plan

10b5-1 sale June 3, 2026 1,000 shares; $16,500.00 Common stock sold under 10b5-1 plan

10b5-1 sale July 6, 2026 1,000 shares; $18,356.50 Common stock sold under 10b5-1 plan

Key Terms

Rule 144, 10b5-1, Previously Exercised Options, Executive Financial Services

4 terms

Rule 144 regulatory

"filed a notice of proposed sale under Rule 144 covering 3,000 shares"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

10b5-1 regulatory

"recent activity under a Rule 10b5-1 trading plan, including sales"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Previously Exercised Options financial

"The shares relate to previously exercised options, with an indicated value"

Executive Financial Services financial

"held through Morgan Stanley Smith Barney LLC Executive Financial Services"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing for SLP disclose about planned stock sales?

The filing discloses a planned sale of 3,000 shares of Simulations Plus common stock under Rule 144. These shares are held through Morgan Stanley Smith Barney LLC and are tied to previously exercised options valued at $54,690.00.

How many SLP shares has John Anthony DiBella II sold in the past three months?

Over the past three months, John Anthony DiBella II sold 3,000 SLP common shares under a Rule 10b5-1 plan. Transactions were 1,000 shares each on May 4, June 3, and July 6, 2026.

What were the proceeds from recent SLP stock sales reported for John Anthony DiBella II?

The recent Rule 10b5-1 sales generated $14,980.00 on May 4, $16,500.00 on June 3, and $18,356.50 on July 6, 2026. Each transaction involved 1,000 common shares of Simulations Plus.

Are the SLP shares in the Form 144 linked to stock options?

Yes. The 3,000 shares covered by the Form 144 are described as arising from previously exercised options. The issuer is identified as the source of those options, with the sale to be made for cash.

Is the SLP insider trading under a Rule 10b5-1 plan?

Yes. The recent sales of 1,000 SLP shares each in May, June, and July 2026 are identified as 10b5-1 Sales. This indicates they were executed under a pre-arranged Rule 10b5-1 trading plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/03/2026 - 04:47 PM Accepted by SEC EDGAR 08/03/2026 - 04:46 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001544167
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	SIMULATIONS PLUS INC
SEC File Number	001-32046
Address of Issuer	800 Park Offices Drive, Suite 401 Research Triangle Park NORTH CAROLINA 27709
Phone	6617237723
Name of Person for Whose Account the Securities are To Be Sold	JOHN ANTHONY DIBELLA II
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	3000	54690.00	20224838	08/03/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	03/23/2023	Previously Exercised Options	Issuer			3000	03/23/2023	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for JOHN ANTHONY DIBELLA II 800 Park Offices Drive, Suite 401 Research Triangle Park NC 27709	Common	07/06/2026	1000	18356.50
10b5-1 Sales for JOHN ANTHONY DIBELLA II 800 Park Offices Drive, Suite 401 Research Triangle Park NC 27709	Common	06/03/2026	1000	16500.00
10b5-1 Sales for JOHN ANTHONY DIBELLA II 800 Park Offices Drive, Suite 401 Research Triangle Park NC 27709	Common	05/04/2026	1000	14980.00

144: Remarks and Signature

Remarks
Date of Notice	08/03/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	01/14/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ John Anthony DiBella II
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)