VSAR Aravive (delisted)

ITEM 1.

     (a) Name of Issuer: Versartis, Inc. (the “Issuer”)

     (b) Address of Issuer's Principal Executive Offices: 1020 Marsh Road, Menlo Park, California 94025

ITEM 2.

     (a) Name of Person Filing: This Schedule 13G is being filed jointly by each of the following persons pursuant to Rule 13d-1(k) promulgated by the Securities and Exchange Commission pursuant to Section 13 of the Act: Advent Life Sciences LLP (“Advent”), Advent Life Sciences Fund I LP (the “Advent Fund”), and Shahzad Malik, who was as of December 31, 2017 a general partner of Advent and is a member of the Issuer's board of directors. The foregoing entities and Dr. Malik are individually and collectively referred to herein as the “Reporting Person” or the “Reporting Persons.” The Reporting Persons have entered into a Joint Filing Agreement, dated February 7, 2018, a copy of which is attached as Exhibit 1 to this Statement, pursuant to which the Reporting Persons agreed to file this Schedule 13G and any amendments thereto jointly in accordance with the provisions of Rule 13d-1(k)(1) under the Act.

     (b) Address of Principal Business Office, or if None, Residence: The principal business office of each of the Reporting Persons is located at 158 North Gower Street, London NW1 2ND, United Kingdom.

     (c) Citizenship: Advent is a limited liability partnership organized under the laws of the United Kingdom. The Advent Fund is a limited partnership organized under the laws of the United Kingdom. Dr. Malik is a citizen of the United Kingdom.

     (d) Title of Class of Securities: Common Stock, $0.0001 par value per share (“Common Stock”)

     (e) CUSIP Number: 92529L102

ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO SS.240.13d -1(b) OR 240.13d -2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A:

ITEM 4. OWNERSHIP.

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

     (a) Amount beneficially owned: As of December 31, 2017, each of Advent and the Advent Fund may be deemed to beneficially own 1,621,558 shares of Common Stock, and Dr. Malik may be deemed to beneficially own 1,692,753 shares of Common Stock.

     As of December 31, 2017, Advent was the beneficial owner of 65,619 shares of Common Stock, the Advent Fund was the beneficial owner of 1,555,939 shares of Common Stock, and Dr. Malik was the beneficial owner of 71,195 shares of Common Stock. By virtue of the affiliate relationships among the Reporting Persons, each of Advent and the Advent Fund may be deemed to beneficially own in the aggregate 1,621,558 shares of Common Stock as of December 31, 2017, and Dr. Malik may be deemed to beneficially own in the aggregate 1,692,753 shares of Common Stock as of December 31, 2017.

     Dr. Malik, who is a general partner of Advent and a member of the Issuer's board of directors, holds (i) options to purchase a total of 35,000 shares of Common Stock at a price per share of $21.00, of which, options to purchase 32,812 shares are vested but not exercised as of December 31, 2017, and options to purchase an additional 1,458 of such shares vest within 60 days following December 31, 2017, (ii) options to purchase a total of 13,100 shares of Common Stock at a price per share of $14.73, all of which are vested as of December 31, 2017, (iii) options to purchase a total of 14,625 shares of Common Stock at a price per share of $8.12, all of which are vested as of December 31, 2017, (iv) options to purchase a total of 6,850 shares of Common Stock at a price per share of $15.825, none of which are vested as of December 31, 2017, and none of which are anticipated to vest within 60 days following December 31, 2017, (v) 4,575 shares of restricted Common Stock, all of which are vested as of December 31, 2017, (vi) 4,625 shares of restricted Common Stock, all of which are vested as of December 31, 2017, (vii) 3,480 shares of restricted Common Stock, none of which are vested as of December 31, 2017, and none of which are anticipated to vest within 60 days following December 31, 2017, and (viii) 11,200 shares of restricted Common Stock, none of which are vested as of December 31, 2017, and none of which are anticipated to vest within 60 days following December 31, 2017, and thus 71,195 of the shares of Common Stock underlying those options and restricted shares (in the aggregate) are deemed owned for beneficial reporting purposes as of December 31, 2017.

     Each Reporting Person disclaims beneficial ownership of the shares of Common Stock except to the extent of any pecuniary interest therein.

     (b) Percent of class: As of December 31, 2017, each of Advent and the Advent Fund may be deemed to beneficially own approximately 4.5% of the outstanding shares of Common Stock, and Dr. Malik may be deemed to beneficially own approximately 4.7% of the outstanding shares of Common Stock.

     All percentages of ownership of Common Stock by Advent and the Advent Fund in this Statement assume an aggregate of 35,809,311 shares of Common Stock issued and outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission by the Issuer on November 9, 2017, and the percentage of ownership of Common Stock by Dr. Malik in this Statement assumes an additional 71,195 shares of Common Stock issued and outstanding (which shares are not issued and outstanding but are deemed owned by Dr. Malik for beneficial reporting purposes as of December 31, 2017).

     (c) Number of shares as to which such person has:

          (i) Sole power to vote or to direct the vote See Item 5 on the cover pages hereto.

          (ii) Shared power to vote or to direct the vote

     See Item 6 on the cover pages hereto.

          (iii) Sole power to dispose or to direct the disposition of

     See Item 7 on the cover pages hereto.

          (iv) Shared power to dispose or to direct the disposition of

     See Item 8 on the cover pages hereto.

ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [ x ] .

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.

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. CERTIFICATIONS.

Not applicable.

SIGNATURE

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

Date: February 7, 2018

Exhibit 1
AGREEMENT REGARDING THE JOINT FILING OF SCHEDULE 13G

     Each of the undersigned hereby acknowledges and agrees, in compliance with the provisions of Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, that the Schedule 13G to which this Agreement is attached as an Exhibit, and any amendments thereto, will be filed with the Securities and Exchange Commission jointly on behalf of the undersigned. This Agreement may be executed in one or more counterparts. Notwithstanding the foregoing, each of the undersigned disclaims beneficial ownership of the shares of the other, except to the extent of his or its pecuniary interest therein.

Date: February 7, 2018