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
                                                                                  
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response...
0.5
                      
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 * Marek Regina 2. Issuer Name and Ticker or Trading Symbol Aerpio Pharmaceuticals, Inc. [ ARPO ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable)_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
Vice President of Finance
(Last)         (First)         (Middle)
C/O AERPIO PHARMACEUTICALS, INC., 9987 CARVER ROAD, SUITE 420
3. Date of Earliest Transaction (MM/DD/YYYY)
3/16/2020
(Street)
CINCINNATI, OH 45242
(City)       (State)       (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)
 
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. 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

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
Stock Option (Right to Buy)  $0.5201  3/16/2020    A     93000       (1) 3/16/2030  Common Stock  93000  $0.00  93000  D   

Explanation of Responses:
(1)  Options exercisable as to 1/4th on March 16, 2021 and an additional 1/48th monthly thereafter until March 16, 2024.

Remarks:
Exhibit 24: Power of Attorney

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Marek Regina
C/O AERPIO PHARMACEUTICALS, INC.
9987 CARVER ROAD, SUITE 420
CINCINNATI, OH 45242


Vice President of Finance

Signatures
/s/ Deanna Virginio, Attorney in Fact 3/18/2020
**Signature of Reporting Person Date
Aerpio Pharmaceuticals (NASDAQ:ARPO)
Historical Stock Chart
From Jul 2020 to Aug 2020 Click Here for more Aerpio Pharmaceuticals Charts.
Aerpio Pharmaceuticals (NASDAQ:ARPO)
Historical Stock Chart
From Aug 2019 to Aug 2020 Click Here for more Aerpio Pharmaceuticals Charts.