SECURITIES AND EXCHANGE
Washington, D.C. 20549
INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
TO RULES 13d-1(b), (c),
AND (d) AND AMENDMENTS THERETO FILED
PURSUANT TO RULE 13d-2(b)
Orexigen Therapeutics, Inc.
(Name of Issuer)
Common Stock, $0.001 par value
(Title of Class of Securities)
December 31, 2018
(Date of Event Which Requires Filing of this
Check the appropriate box
to designate the rule pursuant to which this Schedule is filed:
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 disclosures provided
in a prior cover page.
The information required
on 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).