Waage Christian - Jul 15, 2022 Form 4 Insider Report for Gossamer Bio, Inc. (GOSS)

Role: EVP, Tech Ops and Admin
Signature: /s/ Jeff Boerneke, Attorney-in-Fact
Stock symbol: GOSS
Transactions as of: Jul 15, 2022
Transactions value $: $49,994
Form type: 4
Date filed: 7/15/2022, 04:25 PM
Previous filing: Mar 24, 2022
Next filing: Dec 9, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	GOSS	Common Stock	Purchase	$50K	+6.93K	+99.71%	$7.21^*	13.9K	Jul 15, 2022	By family trust	F1
holding	GOSS	Common Stock						579K	Jul 15, 2022	Direct
holding	GOSS	Common Stock						22.2K	Jul 15, 2022	By trust FBO son

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

Explanation of Responses:

Id	Content
F1	The Reporting Person's purchase of common stock reported herein was matchable under Section 16(b) of the Securities Exchange Act of 1934, to the extent of 6,934 shares, with the Reporting Person's sale of 6,934 shares of common stock at a price of $8.915 per share on March 23, 2022. The Reporting Person paid to the Issuer $11,882.47, representing the full amount of the profit realized in connection with the short-swing transaction.

Content

The Reporting Person's purchase of common stock reported herein was matchable under Section 16(b) of the Securities Exchange Act of 1934, to the extent of 6,934 shares, with the Reporting Person's sale of 6,934 shares of common stock at a price of $8.915 per share on March 23, 2022. The Reporting Person paid to the Issuer $11,882.47, representing the full amount of the profit realized in connection with the short-swing transaction.