[Form 4] Simulations Plus, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Simulations Plus (SLP)50,000 stock options to purchase common stock at an exercise price of $16.02 per share on 10/16/2025. The options expire on 10/15/2035 and were reported as a direct holding following the transaction.

The award vests over three years: 40% on the first anniversary, then 30% on each of the second and third anniversaries. The filing reflects a routine compensation grant under which the number of derivative securities beneficially owned after the transaction is 50,000.

Insights

Corporate governance and compensation analyst

Routine CEO option grant with three-year vesting.

The CEO of Simulations Plus received 50,000 stock options with an exercise price of $16.02 on 10/16/2025, expiring 10/15/2035. The transaction code indicates an award, consistent with standard executive compensation practices.

Vesting is time-based: 40% after one year, then 30% in each of the next two years, aligning incentives over a three-year period. The form shows 50,000 derivative securities beneficially owned after the grant.

This is an administrative disclosure rather than a directional event. Any impact depends on future stock performance and exercise decisions, which are not addressed in the excerpt.

10/17/2025 - 05:02 PM

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).

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^*

OCONNOR SHAWN

(Last) (First) (Middle)

42505 10TH STREET WEST

(Street)

LANCASTER CA 93534

(City) (State) (Zip)

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 Executive Officer

3. Date of Earliest Transaction (Month/Day/Year)
10/16/2025

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

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

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

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

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
Stock Options (Right to Buy)	$16.02	10/16/2025		A		50,000		(1)	10/15/2035	Common Stock	50,000	$0	50,000	D

Explanation of Responses:

1. The stock options shall vest 40% on the first anniversary date and continuing to vest on the 2nd and 3rd anniversary dates thereafter at 30%.

Remarks:

	/s/ William Frederick, attorney-in-fact for Shawn O'Connor	10/17/2025
	** 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.

FAQ

What did SLP disclose in this Form 4?

The CEO, Shawn O’Connor, was granted 50,000 stock options at an exercise price of $16.02 on 10/16/2025.

What is the vesting schedule for the SLP CEO’s option grant?

The options vest 40% on the first anniversary, then 30% on each of the second and third anniversaries.

When do the granted options expire for SLP’s CEO?

The options expire on 10/15/2035.

How many derivative securities are beneficially owned after the reported transaction?

The filing lists 50,000 derivative securities beneficially owned after the transaction.

What security type was granted to the SLP CEO?

The award was stock options (right to buy) Simulations Plus common stock.

Was the ownership reported as direct or indirect?

The filing indicates Direct (D) ownership for the derivative securities.

What is the exercise price of the options granted to SLP’s CEO?

The exercise price is $16.02 per share.