SC 13G/A 1 p21-0426sc13ga.htm GOSSAMER BIO, INC.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G/A

Under the Securities Exchange Act of 1934
(Amendment No. 1)*

Gossamer Bio, Inc.
(Name of Issuer)

Common Stock, par value of $0.0001 per share
(Title of Class of Securities)

38341P102
(CUSIP Number)

December 31, 2020
(Date of Event Which Requires Filing of This Statement)


Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

ý	Rule 13d-1(b)
¨	Rule 13d-1(c)
¨	Rule 13d-1(d)

(Page 1 of 7 Pages)

______________________________

*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP No. 38341P102

13G/A

Page 2 of 7 Pages

1	NAME OF REPORTING PERSON Hillhouse Capital Advisors, Ltd.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) ¨ (b) ¨
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:	5	SOLE VOTING POWER -0-
	6	SHARED VOTING POWER 7,420,974 shares of Common Stock*
	7	SOLE DISPOSITIVE POWER -0-
	8	SHARED DISPOSITIVE POWER 7,420,974 shares of Common Stock*
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 7,420,974 shares of Common Stock*
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES			¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 9.8%
12	TYPE OF REPORTING PERSON IA

* Consists of 2,446,933 shares of Common Stock held by funds managed by Hillhouse Capital Advisors, Ltd. ("HCA") and 4,974,041 shares of Common Stock held by funds managed by Hillhouse Capital Management, Ltd. ("HCM"). HCA and HCM are under common control and share certain policies, personnel and resources.

CUSIP No. 38341P102

13G/A

Page 3 of 7 Pages

1	NAME OF REPORTING PERSON Hillhouse Capital Management, Ltd.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) ¨ (b) ¨
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:	5	SOLE VOTING POWER -0-
	6	SHARED VOTING POWER 7,420,974 shares of Common Stock*
	7	SOLE DISPOSITIVE POWER -0-
	8	SHARED DISPOSITIVE POWER 7,420,974 shares of Common Stock*
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 7,420,974 shares of Common Stock*
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES			¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 9.8%
12	TYPE OF REPORTING PERSON IA

* Consists of 2,446,933 shares of Common Stock held by funds managed by HCA and 4,974,041 shares of Common Stock held by funds managed by HCM. HCA and HCM are under common control and share certain policies, personnel and resources.

CUSIP No. 38341P102

13G/A

Page 4 of 7 Pages

Item 1(a).	NAME OF ISSUER
	The name of the issuer is Gossamer Bio, Inc. (the "Company").

Item 1(b).	ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES
	The Company's principal executive office is located at 3013 Science Park Road, San Diego, California 92121.

Item 2(a).

NAME OF PERSON FILING

This Schedule 13G is filed by (i) Hillhouse Capital Advisors, Ltd., an exempted Cayman Islands company ("HCA") and (ii) Hillhouse Capital Management, Ltd., an exempted Cayman Islands company ("HCM"). The foregoing persons are hereinafter sometimes each referred to as a "Reporting Person" and collectively referred to as the "Reporting Persons."

HCA acts as the sole management company of Gaoling Fund, L.P. ("Gaoling") and the sole general partner of YHG Investment, L.P. ("YHG"). HCA is hereby deemed to be the beneficial owner of, and to control the voting and investment power of, shares of Common Stock (as defined in Item 2(d) below) held by the Gaoling and YHG. HCM acts as the sole management company of Hillhouse Fund IV ("HFIV"). HH Goss Holdings LLC ("HH Goss") is wholly owned by HFIV. HCM is hereby deemed to be the beneficial owner of, and to control the voting power of, the Common Stock held by HH Goss. HCA and HCM are under common control and share certain policies, personnel and resources. Accordingly, each of HCA and HCM reports on this Schedule 13G that it has shared voting and dispositive power of the Common Stock beneficially owned by each of HCA and HCM.

Item 2(b).	ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE
	The address of the business office of each of the Reporting Persons is Suite 2202, 22nd Floor, Two International Finance Centre, 8 Finance Street, Central, Hong Kong.

Item 2(c).	CITIZENSHIP
	Cayman Islands

Item 2(d).	TITLE OF CLASS OF SECURITIES
	Common Stock, par value of $0.0001 per share (the "Common Stock").

Item 2(e).	CUSIP NUMBER
	38341P102

CUSIP No. 38341P102

13G/A

Page 5 of 7 Pages

Item 3.	IF THIS STATEMENT IS FILED PURSUANT TO Rules 13d-1(b), OR 13d-2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A:
	(a)	¨	Broker or dealer registered under Section 15 of the Act;
	(b)	¨	Bank as defined in Section 3(a)(6) of the Act;
	(c)	¨	Insurance company as defined in Section 3(a)(19) of the Act;
	(d)	¨	Investment company registered under Section 8 of the Investment Company Act of 1940;
	(e)	ý	An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);
	(f)	¨	An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F);
	(g)	¨	A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G);
	(h)	¨	A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act;
	(i)	¨	A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act;
	(j)	¨	A non-U.S. institution in accordance with Rule 13d-1(b)(1)(ii)(J);
	(k)	¨	Group, in accordance with Rule 13d-1(b)(1)(ii)(K).
	If filing as a non-U.S. institution in accordance with Rule 13d-1(b)(1)(ii)(J), please specify the type of institution:________________________

Item 4.	OWNERSHIP
	The percentage set forth in this Schedule 13G/A is calculated based upon an aggregate of 75,927,877 shares of Common Stock reported to be issued and outstanding as of November 5, 2020, as reported in the Company's Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2020 filed with the Securities and Exchange Commission on November 10, 2020.

	The information required by Items 4(a) - (c) is set forth in Rows 5 - 11 of the cover page for each of the Reporting Persons and is incorporated herein by reference.

Item 5.	OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS
	Not applicable.

Item 6.	OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON
	See Item 2.

CUSIP No. 38341P102

13G/A

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Item 7.	IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY OR CONTROL PERSON
	Not applicable.

Item 8.	IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP
	Not applicable.

Item 9.	NOTICE OF DISSOLUTION OF GROUP
	Not applicable.

Item 10.	CERTIFICATION
	Each of the Reporting Persons hereby makes the following certification:

	By signing below the Reporting Person certifies that, to the best of its knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

CUSIP No. 38341P102

13G/A

Page 7 of 7 Pages

SIGNATURES

After reasonable inquiry and to the best of its knowledge and belief, the undersigned certifies that the information set forth in this statement is true, complete and correct.

DATE: February 16, 2021

Hillhouse Capital Advisors, LTD.


/s/ Richard A. Hornung
Name: Richard A. Hornung
Title: General Counsel and Chief Compliance Officer

HILLHOUSE CAPITAL MANAGEMENT, LTD.


/s/ Richard A. Hornung
Name: Richard A. Hornung
Title: General Counsel and Chief Compliance Officer

SEC Form SC 13G/A filed