Stephen T. Worland - Aug 11, 2023 Form 4 Insider Report for eFFECTOR Therapeutics, Inc. (EFTR)

Role: Chief Executive Officer, Director
Signature: /s/ Michael Byrnes, Attorney-in-Fact for Stephen T. Worland
Stock symbol: EFTR
Transactions as of: Aug 11, 2023
Transactions value $: $17,575
Form type: 4
Date filed: 8/14/2023, 08:00 AM
Previous filing: May 16, 2023
Next filing: Nov 16, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	EFTR	Common Stock	Options Exercise	$17.6K	+33.8K	+14.86%	$0.52	261K	Aug 11, 2023	Direct
holding	EFTR	Common Stock						562K	Aug 11, 2023	By trust

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	EFTR	Stock Option (Right to Buy)	Options Exercise	$0	-33.8K	-100%	$0.00^*	0	Aug 11, 2023	Common Stock	33.8K	$0.52	Direct	F1

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

Explanation of Responses:

Id	Content
F1	The stock option vests 25% on December 17, 2014, and in 36 monthly installments thereafter, subject to the Reporting Person's continued service through the applicable vesting date.