FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      
1. Name and Address of Reporting Person * WOLTOSZ WALTER S 2. Issuer Name and Ticker or Trading Symbol Simulations Plus, Inc. [ SLP ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable)__X__ Director                    __X__ 10% Owner
_____ Officer (give title below)    _____ Other (specify below)
(Last)         (First)         (Middle)
42505 10TH ST. WEST
3. Date of Earliest Transaction (MM/DD/YYYY)
2/23/2021
(Street)
LANCASTER, CA 93534
(City)       (State)       (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)
2/22/2021 
6. Individual or Joint/Group Filing (Check Applicable Line) ___ Form filed by One Reporting Person
_ X _ 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. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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
Simulations Plus, Inc. common stock  2/22/2021    S    24000  D $73.01 (1) 4551835  D   

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 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 of Derivative Security: 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)  Average price of $73.01 over sales ranging from $71.69 to $75.22. Automatic sales under 10b5-1 program.

Remarks:
Error correction from original filing.
Automatic sales under 10b5-1 program.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
WOLTOSZ WALTER S
42505 10TH ST. WEST
LANCASTER, CA 93534
X X

WOLTOSZ VIRGINIA E
42505 10TH STREET WEST
LANCASTER, CA 93534
X



Signatures
Walter S Woltosz 2/23/2021
**Signature of Reporting Person Date
Virginia E Woltosz 2/23/2021
**Signature of Reporting Person Date