Amended Statement of Ownership (sc 13g/a)

Date : 02/14/2017 @ 10:36AM
Source : Edgar (US Regulatory)
Stock : Gw Pharmaceuticals Plc. (PC) (GWPRF)
Quote : 10.77  0.52 (5.07%) @ 4:06PM

Amended Statement of Ownership (sc 13g/a)

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. 2)*

GW Pharmaceuticals plc
(Name of Issuer)

Ordinary Shares
(Title of Class of Securities)

36197T103
(CUSIP Number)

December 30, 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:
[X] 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: 36197T103                                                Page 1 of 4


1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
SMALLCAP World Fund, Inc.

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a)

(b)

3 SEC USE ONLY

4 CITIZENSHIP OR PLACE OF ORGANIZATION

Maryland

5 SOLE VOTING POWER

NONE

             6   SHARED VOTING POWER
 NUMBER OF
   SHARES         NONE
BENEFICIALL
 Y OWNED BY
             7   SOLE DISPOSITIVE POWER
    EACH
 REPORTING        NONE
   PERSON
   WITH:
             8   SHARED DISPOSITIVE POWER

                  NONE

9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

22,216,800 See Additional information in Item 4. Under certain circumstances, SMALLCAP World Fund, Inc. may vote the shares of the fund. These shares may also be reflected in a filing made by Capital Research Global Investors, Capital International Investors, and/or Capital World Investors.

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

11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

7.3%

12 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

IV

CUSIP: 36197T103                                                Page 2 of 4


SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549

Schedule 13G

Under the Securities Exchange Act of 1934

Amendment No. 2

Item 1(a) Name of Issuer:
GW Pharmaceuticals plc

Item 1(b) Address of Issuer's Principal Executive Offices:
Sovereign House, Vision Park
Histon, Cambridge CB24 9BZ
United Kingdom

Item 2(a) Name of Person(s) Filing:
SMALLCAP World Fund, Inc.

Item 2(b) Address of Principal Business Office or, if none,
Residence:
6455 Irvine Center Drive
Irvine, California 92618-4518

Item 2(c) Citizenship: N/A

Item 2(d) Title of Class of Securities:
Ordinary Shares

Item 2(e) CUSIP Number:
36197T103

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:
(d) [X] Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).

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:
(b) Percent of class:
(c) Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
(ii) Shared power to vote or to direct the vote:
(iii) Sole power to dispose or to direct the disposition of:
(iv) Shared power to dispose or to direct the disposition of:

See page 2

SMALLCAP World Fund, Inc., an investment company registered under the Investment Company Act of 1940, which is advised by Capital Research and Management Company ("CRMC"), is the beneficial owner of 22,216,800 shares or 7.3% of the 302,458,092 shares believed to be outstanding. CRMC manages equity assets for various investment companies through three

CUSIP: 36197T103                                                Page 3 of 4


divisions, Capital Research Global Investors, Capital World Investors, and Capital International Investors. These divisions generally function separately from each other with respect to investment research activities and they make investment decisions and proxy voting decisions for the investment companies on a separate basis.

All shares reported are held in the form of American Depositary Shares, each representing 12 Ordinary Shares.

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: N/A

Item 7 Identification and Classification of the Subsidiary Which
Acquired the Security Being Reported on By the Parent Holding Company or Control Person: N/A

Item 8 Identification and Classification of Members of the Group:
N/A

Item 9 Notice of Dissolution of Group: N/A

Item 10 Certification

By signing below, I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and 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.

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, 2017

Signature:     /s/ Michael W. Stockton
Name/Title:    Michael W. Stockton - Secretary
               SMALLCAP World Fund, Inc.

CUSIP: 36197T103                                                Page 4 of 4



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