Unassociated Document
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
(Rule 13d-102)
Information to be Included in Statements Filed Pursuant
to § 240.13d-1(b), (c) and (d) and Amendments Thereto Filed
Pursuant to § 240.13d-2
Under the Securities Exchange Act of 1934
(Amendment No. ________)*
Common Stock, Par Value $0.001
(Title of Class of Securities)
(CUSIP Number)
(Date of Event which Requires Filing of this Statement)
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 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).
Persons who respond to the collection of information contained in this form are not
required to respond unless the form displays a currently valid OMB control number.
13G
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CUSIP No. 98411C100
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1. Names of Reporting Persons.
GlaxoSmithKline plc
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2. Check the Appropriate Box if a Member of a Group
(a) o
(b) o
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3. SEC Use Only
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4. Citizenship or Place of Organization
England and Wales
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Number of Shares
Beneficially
Owned by
Each Reporting
Person With:
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5. Sole Voting Power
4,031,212
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6. Shared Voting Power
0
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7. Sole Dispositive Power
4,031,212
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8. Shared Dispositive Power
0
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9. Aggregate Amount Beneficially Owned by Each Reporting Person
4,031,212
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10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares o
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11. Percent of Class Represented by Amount in Row (9)
8.6%
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12. Type of Reporting Person
CO
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13G
CUSIP No. 98411C100
ITEM 1.
(a) Name of Issuer:
XenoPort, Inc.
(b) Address of Issuer's Principal Executive Offices:
3410 Central Expressway
Santa Clara, California 95051
ITEM 2.
(a) Name of Person Filing:
GlaxoSmithKline plc
(b) Address of Principal Business Office, or if None, Residence:
980 Great West Road
Brentford
Middlesex
TW8 9GS ENGLAND
(c) Citizenship:
England and Wales
(d) Title of Class of Securities:
Common Stock, par value $0.001 per share
(e) CUSIP Number:
98411C100
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:
Not Applicable
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.
The information in items 1 and 5 through 11 on the cover pages (page 2) on this Schedule 13G is hereby incorporated by reference.
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 [].
ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.
Glaxo Group Limited* 4,031,212 8.6%
*Shares held directly by Glaxo Group Limited, an indirect wholly-owned subsidiary of Reporting Person.
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.
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 such purpose or effect.
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.
December 19, 2012
________________________________
(Date)
/s/ Simon Dingemans
________________________________
(Signature)
Simon Dingemans
Chief Financial Officer
________________________________
(Name/Title)
The original statement shall be signed by each person on whose behalf the statement is filed or his authorized representative. If the statement is signed on behalf of a person by his authorized representative other than an executive officer or general partner of the filing person, evidence of the representative's authority to sign on behalf of such person shall be filed with the statement, provided, however, that a power of attorney for this purpose which is already on file with the Commission may be incorporated by reference. The name and any title of each person who signs the statement shall be typed or printed beneath his signature.