13D Filing: New Leaf Ventures Ii, L.p. and Versartis Inc. (NASDAQ:VSAR)

Page 2 of 5 – SEC Filing


CUSIP No. 92529L102 13D Page
2
of 10 Pages

Schedule 13D

Item 1. Security and Issuer.

This
Amendment No. 4 to the statement on Schedule 13D (this Amendment No. 4) amends and supplements the statement on Schedule 13D filed on April 7, 2014 (the Original 13D, and, together with Amendment No. 1,
Amendment No. 2, Amendment No. 3 and Amendment No. 4, the Schedule 13D) relates to the Common Stock, $0.0001 par value (the Common Stock) of Versartis, Inc. (the Issuer) having its principal
executive office at 4200 Bohannon Drive, Suite 250, Menlo Park, CA 94025.

Certain terms used but not defined in this Amendment No. 4
have the meanings assigned thereto in the Original 13D (and Amendment No. 1, Amendment No. 2 and Amendment No. 3 thereto). Except as specifically provided herein, this Amendment No. 4 does not modify any of the information
previously reported on the Original 13D (and Amendment No. 1, Amendment No. 2 and Amendment No. 3 thereto).

Item 2. Identity and
Background
.

This statement is being filed by New Leaf Ventures II, L.P. (NLV II), New Leaf Venture Associates II, L.P.
(NLV Associates) and New Leaf Venture Management II, L.L.C. (NLV Management and together with NLV II and NLV Associates, the Reporting Entities) and Philippe O. Chambon (Chambon), Vijay Lathi
(Lathi), Ronald Hunt (Hunt), Jeani Delagardelle (Delagardelle) and Liam Ratcliffe (Ratcliffe and together with Chambon, Lathi, Hunt and Delagardelle, the Managing Directors). The Reporting
Entities and the Managing Directors collectively are referred to as the Reporting Persons.

The address of the principal
business office of NLV II, NLV Associates, NLV Management, Chambon, Hunt and Ratcliffe is New Leaf Venture Partners, Times Square Tower, 7 Times Square, Suite 3502, New York, NY 10036. The address of the principal business office of Lathi and
Delagardelle is New Leaf Venture Partners, 1200 Park Place, Suite 300, San Mateo, CA 94043.

The principal business of NLV II is to make,
hold and dispose of equity and equity-related investments, principally in healthcare, medical device and life sciences companies. The principal business of NLV Associates is to act as the sole general partner of NLV II. The principal business of NLV
Management is to act as the sole general partner of NLV Associates. The principal business of each of the Managing Directors is to manage the Reporting Entities and a number of affiliated partnerships with similar businesses.

During the five years prior to the date hereof, none of the Reporting Persons has been convicted in a criminal proceeding or has been a party
to a civil proceeding ending in a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

Each of NLV II and NLV Associates is a limited partnership organized under the laws of the State of Delaware. NLV Management is a limited
liability company organized under the laws of the State of Delaware. Each Managing Director is a citizen of the United States.

Item 5. Interest in
Securities of the Issuer
.

Each of the Reporting Persons has ceased to beneficially own five percent or more of the outstanding shares
of Common Stock.

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