Edward Morrow Atkinson III - Mar 1, 2023 Form 4 Insider Report for 89bio, Inc. (ETNB)

Role: Director
Signature: /s/ Ryan A. Murr, as attorney-in-fact for Edward Morrow Atkinson III
Stock symbol: ETNB
Transactions as of: Mar 1, 2023
Transactions value $: -$91,600
Form type: 4
Date filed: 3/3/2023, 04:18 PM
Previous filing: Feb 13, 2023
Next filing: Jun 5, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ETNB	Common Stock	Options Exercise	$44.4K	+10K		$4.44	10K	Mar 1, 2023	Direct
transaction	ETNB	Common Stock	Sale	-$136K	-10K	-100%	$13.60	0	Mar 1, 2023	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ETNB	Stock Option (Right to Buy)	Options Exercise	$0	-10K	-33.33%	$0.00	20K	Mar 1, 2023	Common Stock	10K	$4.44	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	This transaction was executed pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $13.49 to $14.83. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.
F2	This option represents a right to purchase a total of 30,000 shares of the Issuer's Common Stock, which vests in equal installments on February 17, 2023, February 17, 2024 and February 17, 2025, subject to the Reporting Person's continued service to the Issuer through each vesting date.

Content

This transaction was executed pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $13.49 to $14.83. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

This option represents a right to purchase a total of 30,000 shares of the Issuer's Common Stock, which vests in equal installments on February 17, 2023, February 17, 2024 and February 17, 2025, subject to the Reporting Person's continued service to the Issuer through each vesting date.