Sec Form 3 Filing - Groch Brian J. @ Acasti Pharma Inc. - 2020-04-01

FORM 3 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 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Groch Brian J. 2. Issuer Name and Ticker or Trading Symbol Acasti Pharma Inc. [ ACST] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) CHIEF COMMERCIAL OFFICER (Last) (First) (Middle) C/O ACASTI PHARMA INC., 545 PROMENADE DU CENTROPOLIS, SUITE 100 3. Date of Earliest Transaction (MM/DD/YY) 04/01/2020 (Street) LAVAL, A8H7T 0A3 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 Share Option (Right to Buy) $ 0.77 ( 5 ) ( 1 ) 07/02/2028 Common Shares 300,000 D Share Option (Right to Buy) $ 1.28 ( 5 ) ( 2 ) 04/15/2029 Common Shares 34,000 D Share Option (Right to Buy) $ 1.28 ( 5 ) ( 3 ) 04/15/2029 Common Shares 116,000 D Share Option (Right to Buy) $ 0.53 ( 5 ) ( 4 ) 03/31/2030 Common Shares 587,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Groch Brian J. C/O ACASTI PHARMA INC. 545 PROMENADE DU CENTROPOLIS, SUITE 100 LAVAL, A8H7T 0A3 CHIEF COMMERCIAL OFFICER Signatures /s/ Kelsey Weiner, Attorney-in-Fact 04/01/2020 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents 300,000 common shares underlying 300,000 share options granted on July 2, 2018. These share options vest in 12 equal installments on a quarterly basis starting from July 2, 2018 until July 2, 2021. ( 2 )Represents 34,000 common shares underlying 34,000 share options granted on April 15, 2019. These share options vest in 12 equal installments on a quarterly basis starting from April 15, 2019 until April 15, 2022. ( 3 )Represents 116,000 common shares underlying 116,000 share options granted on April 15, 2019. These share options vest in 12 equal installments on a quarterly basis starting from April 15, 2019 until April 15, 2022. ( 4 )Represents 587,000 common shares underlying 587,000 share options granted on March 31, 2020. These share options vest in 12 equal installments on a quarterly basis starting from March 31, 2020 until March 31, 2023. ( 5 )Canadian dollars.

Remarks: Exhibit List - Exhibit 24 - Power of Attorney

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

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