Faheem Hasnain - May 5, 2023 Form 4 Insider Report for Gossamer Bio, Inc. (GOSS)

Role: President & CEO, Director
Signature: /s/ Jeff Boerneke, Attorney-in-Fact
Stock symbol: GOSS
Transactions as of: May 5, 2023
Transactions value $: $0
Form type: 4
Date filed: 5/9/2023, 04:12 PM
Previous filing: Mar 22, 2023
Next filing: Jun 2, 2023

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	GOSS	Stock Option (Right to Buy)	Award	$0	+750K		$0.00	750K	May 5, 2023	Common Stock	750K	$1.36	Direct	F1

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

Explanation of Responses:

Id	Content
F1	The Option shall vest and become exercisable as follows: (i) with respect to 50% of the shares subject to the option, the Issuer's common stock achieving a 30-day average stock price at or above $5 per share within four years of the grant date; (ii) with respect to 25% of the shares subject to the option, the Issuer's common stock achieving a 30-day average stock price at or above $7.50 per share within four years of the grant date; and (iii) with respect to the remaining 25% of the shares subject to the option, the Issuer's common stock achieving a 30-day average stock price at or above $10 per share within four years of the grant date; in each case subject to the Reporting Person's continuous service to the Issuer on each such vesting date; provided in no event will any portion of the option vest prior to the first anniversary of the grant date.

Content

The Option shall vest and become exercisable as follows: (i) with respect to 50% of the shares subject to the option, the Issuer's common stock achieving a 30-day average stock price at or above $5 per share within four years of the grant date; (ii) with respect to 25% of the shares subject to the option, the Issuer's common stock achieving a 30-day average stock price at or above $7.50 per share within four years of the grant date; and (iii) with respect to the remaining 25% of the shares subject to the option, the Issuer's common stock achieving a 30-day average stock price at or above $10 per share within four years of the grant date; in each case subject to the Reporting Person's continuous service to the Issuer on each such vesting date; provided in no event will any portion of the option vest prior to the first anniversary of the grant date.