POWER OF ATTORNEY
Know all by these presents, that the undersigned hereby constitutes
and appoints each of Jeff Boerneke and Christian Waage,
signing singly, with full power of substitution, as the
undersigned's true and lawful attorney-in-fact to:
(1) prepare, execute in the undersigned's name and on the undersigned's
behalf, and submit to the U.S. Securities and Exchange Commission
(the "SEC") a Form ID, including amendments thereto, and any
other documents necessary or appropriate to obtain codes and
passwords enabling the undersigned to make electronic filings
with the SEC of reports required by Section 16(a) of the
Securities Exchange Act of 1934 or any rule or
regulation of the SEC;
(2) execute for and on behalf of the undersigned, in the undersigned's capacity
as an officer and/or director of Gossamer Bio, Inc., a Delaware corporation
(the "Company"), and/or 10% holder of the Company's capital stock,
Forms 3, 4, and 5 and any amendments thereto in accordance
with Section 16(a) of the Securities Exchange Act of
1934 and the rules thereunder;
(3) do and perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to complete and
execute any such Form 3, 4, or 5, complete and execute any
amendment or amendments thereto, and timely file such form
with the SEC and any stock exchange or similar authority; and
(4) take any other action of any type whatsoever in connection
with the foregoing which, in the opinion of such attorney-in-fact,
may be of benefit to, in the best interest of, or legally
required by, the undersigned, it being understood that the
documents executed by such attorney-in-fact on behalf of
the undersigned pursuant to this Power of Attorney shall be in
such form and shall contain such terms andconditions as such
attorney-in-fact may approve in such attorney-in-fact's discretion.
The undersigned hereby grants to each such attorney-in-fact
full power and authority to do and perform any and every act
and thing whatsoever requisite, necessary, or proper to be
done in the exercise of any of the rights and powers herein
granted, as fully to all intents and purposes as the undersigned
might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming
all that such attorney-in-fact, or such attorney-in-fact's
substitute or substitutes, shall lawfully do or cause to be
done by virtue of this power of attorney and the rights and
powers herein granted.
The undersigned acknowledges that the foregoing
attorneys-in-fact, in serving in such capacity at the
request of the undersigned, are not assuming, nor is the
Company assuming, any of the undersigned's responsibilities
to comply with Section 16 of the Securities Exchange Act of 1934.
This Power of Attorney shall remain in full force and effect
until the undersigned is no longer required to file Forms 3, 4,
and 5 with respect to the undersigned's holdings of and
transactions in securities issued by the Company, unless earlier
revoked by the undersigned in a signed writing delivered
to the foregoing attorneys-in-fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 11th day of March 2024.
Signature: /s/ Steven Nathan
Print Name: Steven Nathan