Simulations Plus (SLP) CRO sells 1,000 shares under Rule 10b5-1 plan

Rhea-AI Filing Summary

Simulations Plus, Inc. Chief Revenue Officer John Anthony DiBella II reported an open-market sale of 1,000 shares of common stock on 2026-07-06 at an average price of $18.36 per share. Following the transaction, he directly holds 86,140 shares. The sale was executed automatically under a pre-established Rule 10b5-1 trading plan.

Insights

Insider trading & governance analyst

Routine, pre-planned insider sale with substantial holdings retained.

The Chief Revenue Officer of Simulations Plus, Inc. sold 1,000 shares of common stock in an open-market transaction at an average price of $18.36 on 2026-07-06. After the sale, he still directly owns 86,140 shares.

The filing states the transaction was executed automatically under a Rule 10b5-1 trading plan. Such plans are arranged in advance and are designed to reduce the role of short-term information in trading decisions, which typically makes the timing of individual trades less informative.

The relatively small number of shares sold compared with the remaining position, combined with the pre-planned nature of the trade, suggests this is a routine liquidity event rather than a major shift in the executive’s exposure. Future company filings may provide additional context on any subsequent transactions.

Insider Trade Summary 10b5-1

Net Seller: 1,000 shares ($18,360)

Net Sell 1 txn

Insider DiBella John Anthony II

Role Chief Revenue Officer

Sold 1,000 shs ($18K)

Type	Security	Shares	Price	Value
Sale	Common Stock	1,000	$18.36	$18K

Holdings After Transaction: Common Stock — 86,140 shares (Direct, null)

Footnotes (1)

1. 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.

Key Figures

Shares sold: 1,000 shares Average sale price: $18.36 per share Post-transaction holdings: 86,140 shares +3 more

6 metrics

Shares sold 1,000 shares Open-market sale on 2026-07-06

Average sale price $18.36 per share Common stock transaction

Post-transaction holdings 86,140 shares Direct ownership after sale

Sale price range $18.34–$18.39 Multiple trades within this range

Transaction code S (sale) Open-market or private sale designation

Trading plan type Rule 10b5-1 plan Automatic, pre-arranged sales

Key Terms

Rule 10b5-1 plan, open-market sale, Form 4, transaction code "S"

4 terms

Rule 10b5-1 plan regulatory

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

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

open-market sale financial

"transaction_action: "open-market sale" for the common stock transaction."

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Form 4 regulatory

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

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

transaction code "S" regulatory

"transaction_code: "S", described as a sale in open market or private transaction."

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Available on EDGAR 07/08/2026 - 04:05 PM Accepted by SEC EDGAR 07/08/2026 - 04:05 PM Learn about SEC filing dates

FAQ

What did Simulations Plus (SLP) disclose in this Form 4 filing?

Simulations Plus reported that its Chief Revenue Officer, John Anthony DiBella II, sold 1,000 shares of common stock at an average price of $18.36 per share on 2026-07-06, and now directly holds 86,140 shares after the transaction.

How many Simulations Plus (SLP) shares did the executive sell and at what price?

The executive sold 1,000 shares of Simulations Plus common stock in an open-market transaction at an average price of $18.36 per share, with individual trades executed in a price range from $18.34 to $18.39, according to the disclosure.

How many Simulations Plus (SLP) shares does John Anthony DiBella II own after the sale?

After the reported transaction, Chief Revenue Officer John Anthony DiBella II directly owns 86,140 shares of Simulations Plus common stock. This figure reflects his holdings immediately following the 1,000-share open-market sale disclosed in the Form 4 filing for 2026-07-06.

Was the Simulations Plus (SLP) insider sale part of a Rule 10b5-1 trading plan?

Yes. The filing states the sales were effected automatically under a pre-arranged Rule 10b5-1 trading plan adopted by the reporting person. Such plans are designed to allow insiders to sell shares on a predetermined schedule, reducing discretion over trade timing.

What type of transaction did the Simulations Plus (SLP) Form 4 report?

The Form 4 reports an open-market sale of Simulations Plus common stock, coded as an “S” transaction. This indicates a sale in the open market or a private transaction, rather than an option exercise, gift, or tax-withholding event, based on the filing’s description.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

DiBella John Anthony II

(Last) (First) (Middle)

600 PARK OFFICES DRIVE

SUITE 300 #4134

(Street)

DURHAM NORTH CAROLINA 27713

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Simulations Plus, Inc. [ SLP ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Revenue Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/06/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	07/06/2026		S(1)		1,000	D	$18.36(2)	86,140	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

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

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

Remarks:

	/s/ William Frederick, attorney-in-fact for John Anthony DiBella	07/08/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)