UNITED STATES

SECURITIES AND EXCHANGE
COMMISSION

Washington, D.C. 20549

______________

SCHEDULE 13G

(Amendment No. )*

Versartis, Inc.

(Name of Issuer)

Ordinary Shares, $0.0001 par value per share

(Title of Class of Securities)

92529L102

(CUSIP Number)

December 31, 2016

(Date of Event which Requires Filing of this Statement)

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

	☐	Rule 13d-1(b)
	☐	Rule 13d-1(c)
	☑	Rule 13d-1(d)

* 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. 92529L102

13G

Page 2 of 12 Pages

1	NAMES OF REPORTING PERSONS
	I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
	Index Ventures IV (Jersey) L.P.

2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)☑
	(b)☐
3	SEC USE ONLY


4	CITIZENSHIP OR PLACE OF ORGANIZATION
	Jersey, Channel Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER
			2,169,930

		6	SHARED VOTING POWER
			0

		7	SOLE DISPOSITIVE POWER
			2,169,930

		8	SHARED DISPOSITIVE POWER
			0

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	2,169,930

10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
	☐

11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	6.24%

12	TYPE OF REPORTING PERSON
	PN

CUSIP No. 92529L102

13G

Page 3 of 12 Pages

1	NAMES OF REPORTING PERSONS
	I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
	Index Ventures IV Parallel Entrepreneur Fund (Jersey) L.P.

2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)☑
	(b)☐
3	SEC USE ONLY


4	CITIZENSHIP OR PLACE OF ORGANIZATION
	Jersey, Channel Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER
			205,971

		6	SHARED VOTING POWER
			0

		7	SOLE DISPOSITIVE POWER
			205,971

		8	SHARED DISPOSITIVE POWER
			0

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	205,971

10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
	☐

11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	0.59%

12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	PN

CUSIP No. 92529L102

13G

Page 4 of 12 Pages

1	NAMES OF REPORTING PERSONS
	I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
	Yucca (Jersey) SLP

2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)☑
	(b)☐
3	SEC USE ONLY


4	CITIZENSHIP OR PLACE OF ORGANIZATION
	Jersey, Channel Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER
			19,159

		6	SHARED VOTING POWER
			0

		7	SOLE DISPOSITIVE POWER
			19,159

		8	SHARED DISPOSITIVE POWER
			0

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	19,159

10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
	☐

11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	0.06%

12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	PN

CUSIP No. 92529L102

13G

Page 5 of 12 Pages

1	NAMES OF REPORTING PERSONS
	I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
	Index Venture Associates IV Limited

2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)☑
	(b)☐
3	SEC USE ONLY


4	CITIZENSHIP OR PLACE OF ORGANIZATION
	Jersey, Channel Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER
			0

		6	SHARED VOTING POWER
			2,395,060

		7	SOLE DISPOSITIVE POWER
			0

		8	SHARED DISPOSITIVE POWER
			2,395,060

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	2,395,060

10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
	☐

11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	6.88%

12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	CO

CUSIP No. 92529L102

13G

Page 6 of 12 Pages

Item 1(a).	Name of Issuer:

	Versartis, Inc.

Item 1(b).	Address of Issuer's Principal Executive Offices:

	4200 Bohannon Drive, Suite 250
	Menlo Park, California 94025

Item 2(a).	Name of Persons Filing:

	(i)	Index Ventures IV (Jersey) L.P.
	(ii)	Index Ventures IV Parallel Entrepreneur Fund (Jersey) L.P.
	(iii)	Yucca (Jersey) SLP
	(iv)	Index Venture Associates IV Limited

Item 2(b).	Address of Principal Business Office:

	(i)	44 Esplanade, St. Helier JE4 9WG
	(ii)	44 Esplanade, St. Helier JE4 9WG
	(iii)	44 Esplanade, St. Helier JE4 9WG
	(iv)	44 Esplanade, St. Helier JE4 9WG

Item 2(c).	Citizenship:

	(i)	Jersey, Channel Islands
	(ii)	Jersey, Channel Islands
	(iii)	Jersey, Channel Islands
	(iv)	Jersey, Channel Islands

Item 2(d).	Title of Class of Securities:

	Ordinary shares, $0.0001 par value per share

Item 2(e).	CUSIP Number:

	92529L102

CUSIP No. 92529L102

13G

Page 7 of 12 Pages

Item 3.

If this statement is filed pursuant to Sections 240.13d-1(b), or 240.13d-2(b) or (c), check whether the person filing is a:

		[ ]	Broker or dealer registered under Section 15 of the Act;

		[ ]	Bank as defined in Section 3(a)(6) of the Act;

		[ ]	Insurance company as defined in Section 3(a)(19) of the Act;

		[ ]	Investment company registered under Section 8 of the Investment Company Act of 1940;

		[ ]	An investment adviser in accordance with Section 240.13d-1(b)(1)(ii)(E).

		[ ]	An employee benefit plan or endowment fund in accordance with Section 240.13d-1(b)(1)(ii)(F).

		[ ]	A parent holding company or control person in accordance with Section 240.13d-1(b)(1)(ii)(G).

		[ ]	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act;

		[ ]	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940;

		[ ]	A non-U.S. institution in accordance with Section 240.240.13d-1(b)(1)(ii)(J);

		[ ]	Group, in accordance with Section 240.13d-1(b)(1)(ii)(K).

		If filing as a non-U.S. institution in accordance with Section 240.13d-1(b)(1)(ii)(J), please specify the type of institution: __________

CUSIP No. 92529L102

13G

Page 8 of 12 Pages

Item 4.

Ownership.

The information requested hereinafter is set forth in items 5 through 9 and 11 of the cover pages to this Schedule 13G. Ownership is stated as of December 31, 2016 and the ownership percentages are based upon 34,795,987 ordinary shares outstanding as of November 2, 2016 as set forth on the Issuer's Quarterly Report Form 10-Q for the quarterly period ended September 30, 2016 filed with the SEC on November 4, 2016.

Index Ventures IV (Jersey) L.P. ("Index Ventures IV") is the record owner of 2,169,930 shares and Index Ventures IV Parallel Entrepreneur Fund (Jersey) L.P. ("Index Ventures IV Parallel" and together with Index Ventures IV, the "Funds") is the record owner of 205,971 ordinary shares. As the managing general partner of the Funds, Index Venture Associates IV Limited ("Index Limited") may be deemed to have shared dispositive power and shared voting power over the shares owned by the Funds.

Yucca (Jersey) SLP ("Yucca") is the record owner of 19,159 shares of ordinary shares, which are held in a co-investment fund that is contractually required to mirror the Funds' investments. As a result, Index Limited may be deemed to have shared dispositive and shared voting power over Yucca's shares by virtue of its shared dispositive power over and shared voting power over the shares owned by the Funds.

CUSIP No. 92529L102

13G

Page 9 of 12 Pages

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:

	Not applicable.

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.

	See Exhibit 2.

Item 9.	Notice of Dissolution of Group.

	Not applicable.

Item 10.	Certifications.

	By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held 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. 92529L102

13G

Page 10 of 12 Pages

SIGNATURE

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

	Date: 8/2/2017

	INDEX VENTURES IV (JERSEY) L.P.

	By:	/s/ Sinead Meehan
	Name:	Sinead Meehan
	Title:	Director

	INDEX VENTURES IV PARALLEL
	ENTREPRENEUR FUND (JERSEY) L.P.

	By:	/s/ Sinead Meehan
	Name:	Sinead Meehan
	Title:	Director

	YUCCA (JERSEY) SLP
	By: Intertrust Employee Benefit Services Limited as
	authorized signatory of Yucca (Jersey) SLP in its
	capacity as an Administrator of the Index Co-
	Investment Scheme

	By:	/s/ Giles Johnstone-Scott
	Name:	Giles Johnstone-Scott
	Title:	Alternate Signatory

	By:	/s/ Sarah Earles
	Name:	Sarah Earles
	Title:	Alternate Signatory

CUSIP No. 92529L102

13G

Page 11 of 12 Pages

Exhibit 1

AGREEMENT

Each of the undersigned, pursuant to Rule 13d-1(k)(l) under the Act, hereby agrees and acknowledges that only one statement containing the information required by Schedule 13G need be filed with respect to the ownership by each of the undersigned of the shares of Common Stock and the information required by this Schedule 13G, to which this Agreement is attached as an exhibit, is filed on behalf of each of them. The undersigned further agree that any further amendments or supplements thereto shall also be filed on behalf of each of them.

	Date: 8/2/2017

	INDEX VENTURES IV (JERSEY) L.P.

	By:	/s/ Sinead Meehan
	Name:	Sinead Meehan
	Title:	Director

	INDEX VENTURES IV PARALLEL
	ENTREPRENEUR FUND (JERSEY) L.P.

	By:	/s/ Sinead Meehan
	Name:	Sinead Meehan
	Title:	Director

	YUCCA (JERSEY) SLP
	By: Intertrust Employee Benefit Services Limited as
	authorized signatory of Yucca (Jersey) SLP in its
	capacity as an Administrator of the Index Co-
	Investment Scheme

	By:	/s/ Giles Johnstone-Scott
	Name:	Giles Johnstone-Scott
	Title:	Alternate Signatory

	By:	/s/ Sarah Earles
	Name:	Sarah Earles
	Title:	Alternate Signatory

CUSIP No. G14838109

13G

Page 12 of 12 Pages

Exhibit 2

IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THIS GROUP

Index Ventures IV (Jersey) L.P. ("Index Ventures IV"), Index Ventures IV Parallel Entrepreneur Fund (Jersey) L.P. ("Index Ventures IV Parallel"), Yucca Jersey SLP ("Yucca") and Index Venture Associates IV Limited ("Index Limited") are filing this statement on Schedule 13G as a group.

Index Ventures IV is a Jersey (Channel Islands) partnership. Its managing general partner is Index Limited.

Index Ventures IV Parallel is a Jersey (Channel Islands) partnership. Its managing general partner is Index Limited.

Yucca is a Jersey (Channel Islands) separate limited partnership. Its corporate general partner is an affiliate of Index Limited.