SC 13G/A 1 edgsgen.txt SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* Seattle Genetics Incorporated (Name of Issuer) Common Stock (Title of Class of Securities) 812578102 (CUSIP Number) December 31, 2013 (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: 812578102 Page 1 of 10 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Capital Group International, 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 California 5 SOLE VOTING POWER 6,269,067 6 SHARED VOTING POWER NUMBER OF SHARES NONE BENEFICIALL Y OWNED BY 7 SOLE DISPOSITIVE POWER EACH REPORTING 7,536,078 PERSON WITH: 8 SHARED DISPOSITIVE POWER NONE 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 7,536,078 Beneficial ownership disclaimed pursuant to Rule 13d-4 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 6.1% 12 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) HC CUSIP: 812578102 Page 2 of 10 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Capital Guardian Trust Company 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 California 5 SOLE VOTING POWER 5,230,367 6 SHARED VOTING POWER NUMBER OF SHARES NONE BENEFICIALL Y OWNED BY 7 SOLE DISPOSITIVE POWER EACH REPORTING 6,374,378 PERSON WITH: 8 SHARED DISPOSITIVE POWER NONE 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,374,378 Beneficial ownership disclaimed pursuant to Rule 13d-4 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 5.2% 12 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) IA BK CUSIP: 812578102 Page 3 of 10 SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Schedule 13G Under the Securities Exchange Act of 1934 Amendment No. 3 Item 1(a) Name of Issuer: Seattle Genetics Incorporated Item 1(b) Address of Issuer's Principal Executive Offices: 21823 30th Drive SE Bothell, WA 98021 Item 2(a) Name of Person(s) Filing: Capital Group International, Inc. and Capital Guardian Trust Company Item 2(b) Address of Principal Business Office or, if none, Residence: 11100 Santa Monica Blvd. Los Angeles, CA 90025 Item 2(c) Citizenship: N/A Item 2(d) Title of Class of Securities: Common Stock Item 2(e) CUSIP Number: 812578102 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: (b) [X] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c). (e) [X] An investment adviser in accordance with section 240.13d-1(b)(1)(ii)(E). (g) [X] A parent holding company or control person in accordance with section 240.13d-1(b)(1)(ii)(G). 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 pages 2 and 3 CUSIP: 812578102 Page 4 of 10 Capital Group International, Inc. ("CGII") is the parent holding company of a group of investment management companies that hold investment power and, in some cases, voting power over the securities reported in this Schedule 13G. The investment management companies, which include a "bank" as defined in Section 3(a)(6) of the Securities Exchange Act of 1934 (the "Act") and several investment advisers registered under Section 203 of the Investment Advisers Act of 1940, provide investment advisory and management services for their respective clients which include registered investment companies and institutional accounts. CGII does not have investment power or voting power over any of the securities reported herein. However, by virtue of Rule 13d-3 under the Act, CGII may be deemed to "beneficially own" 7,536,078 shares or 6.1% of the 122,481,320 shares believed to be outstanding. Capital Guardian Trust Company ("CGTC"), a bank as defined in Section 3(a)(6) of the Act is deemed to be the beneficial owner of 6,374,378 shares or 5.2% of the 122,481,320 shares believed to be outstanding as a result of its serving as the investment manager of various institutional accounts. CGII, its investment management subsidiaries and Capital International Investors division of Capital Research and Management Company collectively provide investment management services under the name "Capital International Investors." 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. 1. Capital Guardian Trust Company ("CGTC") is a bank as defined in Section 3(a)(6) of the Act and an investment adviser registered under Section 203 of the Investment Adviser Act of 1940, and a wholly owned subsidiary of Capital Group International, Inc. 2. Capital International Limited ("CIL") does not fall within any of the categories described in Rule 13d-1(b)(ii)(A-F) but its holdings of any reported securities come within the five percent limitation as set forth in a December 15, 1986 no- action letter from the Staff of the Securities and Exchange Commission to The Capital Group Companies, Inc. CIL is a wholly owned subsidiary of Capital Group International, Inc. CUSIP: 812578102 Page 5 of 10 3. Capital International Sarl ("CISA") does not fall within any of the categories described in Rule 13d-1(b)(ii)(A-F) but its holdings of any reported securities come within the five percent limitation as set forth in a December 15, 1986 no- action letter from the Staff of the Securities and Exchange Commission to The Capital Group Companies, Inc. CISA is a wholly owned subsidiary of Capital Group International, Inc. 4. Capital International, Inc. ("CIInc") is an investment adviser registered under Section 203 of the Investment Advisers Act of 1940 and is a wholly owned subsidiary of Capital Group International, Inc. 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, 2014 Signature: ***Peter C. Kelly Name/Title: Peter C. Kelly, Secretary Capital Group International, Inc. Date: February 7, 2014 Signature: *Peter C. Kelly Name/Title: Peter C. Kelly, Senior Vice President and Senior Counsel Capital Guardian Trust Company CUSIP: 812578102 Page 6 of 10 ***By /s/ Liliane Corzo Liliane Corzo Attorney-in-fact Signed pursuant to a Power of Attorney dated January 9, 2014 included as an Exhibit to Schedule 13G filed with the Securities and Exchange Commission by Capital Group International, Inc. CUSIP: 812578102 Page 7 of 10 AGREEMENT Los Angeles, CA Capital Group International, Inc. ("CGII") and Capital Guardian Trust Company ("CGTC") hereby agree to file a joint statement on Schedule 13G under the Securities Exchange Act of 1934 (the "Act") in connection with their beneficial ownership of Common Stock issued by Seattle Genetics Incorporated. CGII and CGTC state that they are each entitled to individually use Schedule 13G pursuant to Rule 13d-1(c) of the Act. CGII and CGTC are each responsible for the timely filing of the statement and any amendments thereto, and for the completeness and accuracy of the information concerning each of them contained therein but are not responsible for the completeness or accuracy of the information concerning the others. CAPITAL GROUP INTERNATIONAL, INC. BY: ***Peter C. Kelly Peter C. Kelly, Secretary Capital Group International, Inc. CAPITAL GUARDIAN TRUST COMPANY BY: *Peter C. Kelly Peter C. Kelly, Senior Vice President and Senior Counsel Capital Guardian Trust Company ***B /s/ Liliane Corzo y Liliane Corzo Attorney-in-fact Signed pursuant to a Power of Attorney dated January 9, 2014 included as an Exhibit to Schedule 13G filed with the Securities and Exchange Commission by Capital Group International, Inc. CUSIP: 812578102 Page 8 of 10 POWER OF ATTORNEY The undersigned do hereby appoint Michael J. Downer, Kristine M. Nishiyama and Liliane Corzo, and each of them, acting singly, with full power of substitution, as the true and lawful attorney of the undersigned, to sign on behalf of the undersigned in respect of the ownership of equity securities deemed held by the undersigned, Capital Group International, Inc., Capital Guardian Trust Company, Capital International, Inc., Capital International K.K., Capital International Limited, Capital International Sarl, Capital International Investors, American Funds Insurance Series - Growth-Income Fund, American Mutual Fund, Capital Income Builder, Emerging Markets Growth Fund, Inc., EuroPacific Growth Fund, New Perspective Fund, and New World Fund, Inc., and to be reported pursuant to Sections 13(d), 13(f) and 13(g) of the Securities Exchange Act of 1934, as amended, and to execute joint filing agreements with respect to such filings. IN WITNESS WHEREOF, this Power of Attorney has been executed as of the 9th day of January, 2014. CUSIP: 812578102 Page 9 of 10 Capital Group International, Inc. Capital International Sarl /s/ Peter C. Kelly /s/ Fabrice Remy Name: Peter C. Kelly Name: Fabrice Remy Title: Secretary Title: Vice President and Senior Counsel Capital Guardian Trust Company Capital International Investors /s/ Peter C. Kelly /s/ Robert W. Lovelace Name: Peter C. Kelly Name: Robert W. Lovelace Title: Senior Vice President Title: Senior Vice and Senior Counsel President Capital International, Inc. American Funds Insurance Series /s/ Peter C. Kelly /s/ Steven I. Koszalka Name: Peter C. Kelly Name: Steven I. Koszalka Title: Senior Vice President, Title: Secretary Senior Counsel and Secretary Capital International K.K. American Mutual Fund Capital Income Builder EuroPacific Growth Fund /s/ Thomas B. Quantrille New Perspective Fund Name: Thomas B. Quantrille New World Fund, Inc. Title: President /s/ Michael W. Stockton Capital International Limited Name: Michael W. Stockton Title: Secretary /s/ Ida Levine Name: Ida Levine Emerging Markets Growth Fund, Inc. Title: Senior Vice President /s/ Peter C. Kelly Name: Peter C. Kelly Title: Vice President CUSIP: 812578102 Page 10 of 10