|Issuer:||89BIO, INC. (ETNB)|
|Original Submission Date:|
C/O 89BIO, INC.
142 SANSOME STREET, 2ND FLOOR SAN FRANCISCO, CA 94104
|Title of Security||Transaction Date||2a. Deemed Execution Date||Transaction Code||Shares||Acquired or Disposed||Price per share||5. Amount of Securities Beneficially Owned Following Reported Transaction||6. Ownership Form Direct or Indirect||Nature of Indirect Ownership|
|Title of Derivative Security||Conversion or Exercise Price of Derivative Security||Transaction Date||Deemed Execution Date||Transaction Code||Number of Derivative Securities Acquired (A) or Disposed of (D)||Date Exercisable||Expiration Date||Title and Amount of Securities Underlying Derivative Security||Price of Derivative Security||Number of derivative Securities Beneficially Owned Following Reported Transaction(s)||Ownership Form: Direct (D) or Indirect (I)||Nature of Indirect Beneficial Ownership|
|STOCK OPTION (RIGHT TO BUY)||23.22||2020-03-23||deemed execution date||A||40,000 (a)||2030-03-23||common stock 40,000||$23.22||40,000||direct|
|f1||this option represents a right to purchase a total of 40,000 shares of the issuer's common stock, which will vest in equal installments on the first, second and third anniversary of the grant date, subject to the reporting person's continued service to the issuer through each vesting date.|