SEC Form 4 · accession 0001209191-19-009463

Gossamer Bio, Inc. · GOSS

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owners

Director · 10% Owner

10% Owner

10% Owner

10% Owner

Period of report

Feb 12, 2019

Accepted (ET)

Feb 12, 2019 · 5:46 pm EST

Rule 10b5-1 plan

unknown — predates the checkbox

Issuer CIK

0001728117

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1,F2	Feb 12, 2019	C	6,953,416	—	A	6,953,416	I	See footnote

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	D/I
Series Seed Preferred Stock^F1,F2	—	Feb 12, 2019	C	20,000,000	D	—	—	Common Stock	4,444,444	I
Series A Preferred Stock^F1,F2	—	Feb 12, 2019	C	7,124,620	D	—	—	Common Stock	1,583,248	I
Series B Preferred Stock^F1,F2	—	Feb 12, 2019	C	4,165,760	D	—	—	Common Stock	925,724	I

F1The shares of the Issuer's Series Seed Preferred Stock, Series A Preferred Stock and Series B Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at a ratio of 4.5 to one share, immediately prior to the consummation of the Issuer's initial public offering. The Series Seed Preferred Stock, Series A Preferred Stock and Series B Preferred Stock had no expiration date.
F2The reported securities are held directly by Omega Fund V, L.P. ("Omega V"). The reported securities may be deemed to be beneficially owned by each of Omega Fund V GP, L.P. ("Omega V GP"), as the general partner of Omega V, and Omega Fund V GP Manager, Ltd. ("Omega V GP Manager"), as the general partner of Omega V GP. Otello Stampacchia, Richard Lim, Anne-Mari Paster and Claudio Nessi (the "Omega Directors") are all the shareholders and directors of Omega V GP Manager and have shared voting and investment power over the shares held by Omega V. Each of Omega V GP, Omega Fund V GP Manager and the Omega Directors disclaims beneficial ownership of the securities reported herein, except to the extent of its or their pecuniary interest therein, if any.