UNITED STATES

 

 

SECURITIES AND EXCHANGE COMMISSION

 

 

Washington, D.C. 20549

 

 

 

 

SCHEDULE 13G

 

Under the Securities Exchange Act of 1934
(Amendment No. 1)*

 

Seattle Genetics, Inc.

(Name of Issuer)

Common Stock, par value $0.001

(Title of Class of Securities)

812578102

(CUSIP Number)

January 18, 2008

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

o

Rule 13d-1(b)

x

Rule 13d-1(c)

o

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 No. 812578102

 

 

1.

Names of Reporting Persons
Bill & Melinda Gates Foundation Trust

 

 

2.

Check the Appropriate Box if a Member of a Group (See Instructions)

 

 

(a)

o

 

 

(b)

o

 

 

3.

SEC Use Only

 

 

4.

Citizenship or Place of Organization
State of Washington

 

 

 

Number of
Shares
Beneficially
Owned by
Each
Reporting
Person With

5.

Sole Voting Power
-0-

 

6.

Shared Voting Power
3,521,088*

 

7.

Sole Dispositive Power
-0-

 

8.

Shared Dispositive Power
3,521,088*

 

 

9.

Aggregate Amount Beneficially Owned by Each Reporting Person
3,521,088*

 

 

10.

Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  o

 

 

11.

Percent of Class Represented by Amount in Row (9)
4.5%

 

 

12.

Type of Reporting Person (See Instructions)
OO

 


* For purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended, all Common Stock held by the Bill & Melinda Gates  Foundation Trust (the “Trust”) may be deemed to be beneficially owned by William H. Gates III and Melinda French Gates as Co-Trustees of the Trust.  Michael Larson acts with investment discretion for Mr. and Mrs. Gates, as Co-Trustees of the Trust, in respect of the Common Stock owned by the Trust.  Mr. Larson disclaims any beneficial ownership of the Common Stock beneficially owned by the Trust or Mr. and Mrs. Gates.

 

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CUSIP No. 812578102

 

 

1.

Names of Reporting Persons
William H. Gates III

 

 

2.

Check the Appropriate Box if a Member of a Group (See Instructions)

 

 

(a)

o

 

 

(b)

o

 

 

3.

SEC Use Only

 

 

4.

Citizenship or Place of Organization
United States of America

 

 

 

Number of
Shares
Beneficially
Owned by
Each
Reporting
Person With

5.

Sole Voting Power
-0-

 

6.

Shared Voting Power
3,521,088*

 

7.

Sole Dispositive Power
-0-

 

8.

Shared Dispositive Power
3,521,088*

 

 

9.

Aggregate Amount Beneficially Owned by Each Reporting Person
3,521,088*

 

 

10.

Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  o

 

 

11.

Percent of Class Represented by Amount in Row (9)
4.5%

 

 

12.

Type of Reporting Person (See Instructions)
IN

 


* For purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended, all Common Stock held by the Bill & Melinda Gates  Foundation Trust (the “Trust”) may be deemed to be beneficially owned by William H. Gates III and Melinda French Gates as Co-Trustees of the Trust.  Michael Larson acts with investment discretion for Mr. and Mrs. Gates, as Co-Trustees of the Trust, in respect of the Common Stock owned by the Trust.  Mr. Larson disclaims any beneficial ownership of the Common Stock beneficially owned by the Trust or Mr. and Mrs. Gates.

 

3



 

CUSIP No. 812578102

 

 

1.

Names of Reporting Persons
Melinda French Gates

 

 

2.

Check the Appropriate Box if a Member of a Group (See Instructions)

 

 

(a)

o

 

 

(b)

o

 

 

3.

SEC Use Only

 

 

4.

Citizenship or Place of Organization
United States of America

 

 

 

Number of
Shares
Beneficially
Owned by
Each
Reporting
Person With

5.

Sole Voting Power
-0-

 

6.

Shared Voting Power
3,521,088*

 

7.

Sole Dispositive Power
-0-

 

8.

Shared Dispositive Power
3,521,088*

 

 

9.

Aggregate Amount Beneficially Owned by Each Reporting Person
3,521,088*

 

 

10.

Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  o

 

 

11.

Percent of Class Represented by Amount in Row (9)
4.5%

 

 

12.

Type of Reporting Person (See Instructions)
IN

 


* For purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended, all Common Stock held by the Bill & Melinda Gates  Foundation Trust (the “Trust”) may be deemed to be beneficially owned by William H. Gates III and Melinda French Gates as Co-Trustees of the Trust.  Michael Larson acts with investment discretion for Mr. and Mrs. Gates, as Co-Trustees of the Trust, in respect of the Common Stock owned by the Trust.  Mr. Larson disclaims any beneficial ownership of the Common Stock beneficially owned by the Trust or Mr. and Mrs. Gates.

 

4



 

Item 1.

 

(a)

Name of Issuer
Seattle Genetics, Inc. (the “Issuer”)

 

(b)

Address of Issuer’s Principal Executive Offices
21823 30th Drive SE, Bothell, WA 98021

 

Item 2.

 

(a)

Name of Person Filing
Bill & Melinda Gates Foundation Trust (the “Trust”), Melinda French Gates and William H. Gates III.*

 

(b)

Address of Principal Business Office or, if none, Residence
The Trust – 1551 Eastlake Avenue E., Seattle, Washington  98102
Mr. Gates – One Microsoft Way, Redmond, Washington  98052
Mrs. Gates – 2365 Carillon Point, Kirkland, Washington  98033

 

(c)

Citizenship
The Trust is a charitable trust organized under the laws of the State of Washington.
Both Mr. and Mrs. Gates are citizens of the United States of America.

 

(d)

Title of Class of Securities
Common Stock, par value $0.001 (“Common Stock”)

 

(e)

CUSIP Number
812578102

 


*Neither the present filing nor anything contained herein shall be construed as an admission that the Trust or Mr. and Mrs. Gates constitute a “person” for any purpose other than Section 13(g) of the Securities Exchange Act of 1934, or that the Trust and Mr. and Mrs. Gates constitute a “group” for any purpose.

 

Item 3.

If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

 

(a)

o

Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

 

(b)

o

Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

 

(c)

o

Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

 

(d)

o

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

 

(e)

o

An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);

 

(f)

o

An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);

 

(g)

o

A parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G);

 

(h)

o

A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

 

(i)

o

A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

 

(j)

o

Group, in accordance with §240.13d-1(b)(1)(ii)(J).

 

 

 

Not Applicable.

 

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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:   

See the responses to Item 9 on the attached cover pages.

 

(b)

Percent of class:   

See the responses to Item 11 on the attached cover pages.

 

(c)

Number of shares as to which the person has:

 

 

 

(i)

Sole power to vote or to direct the vote   

See the responses to Item 5 on the attached cover pages.

 

 

(ii)

Shared power to vote or to direct the vote    

See the responses to Item 6 on the attached cover pages.

 

 

(iii)

Sole power to dispose or to direct the disposition of   

See the responses to Item 7 on the attached cover pages.

 

 

(iv)

Shared power to dispose or to direct the disposition of   

See the responses to Item 8 on the attached cover pages.

 

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   x.

 

Item 6.

Ownership of More than Five Percent on Behalf of Another Person

 

Not Applicable.

 

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person

 

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.

Certification

 

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 that purpose or effect.

 

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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 14, 2008

 

 

 

BILL & MELINDA GATES FOUNDATION
TRUST(1)

 

 

 

By

/s/ Michael Larson

 

 

 

Name: Michael Larson(2)

 

 

Title: Attorney-in-fact for the Co-Trustees,

 

 

William H. Gates III and Melinda French Gates

 

 

 

WILLIAM H. GATES III(1)

 

 

 

By

/s/ Michael Larson

 

 

 

Name: Michael Larson(2)

 

 

Title: Attorney-in-fact

 

 

 

MELINDA FRENCH GATES

 

 

 

By

/s/ Michael Larson

 

 

 

Name: Michael Larson(2)

 

 

Title: Attorney-in-fact

 

 

 

 


(1)  This amendment is being filed jointly by the Bill & Melinda Gates Foundation Trust, William H. Gates III, and Melinda French Gates pursuant to the Joint Filing Agreement dated February 24, 2006 and included with the signature page to Cascade Investment, L.L.C.’s Schedule 13G with respect to Seattle Genetics, Inc. on February 24, 2006, SEC File No. 005-61317, and incorporated by reference herein.

 

(2)  Duly authorized under Special Power of Attorney appointing Michael Larson attorney-in-fact, dated November 13, 2006, by and on behalf of William H. Gates III and Melinda French Gates, as Co-Trustees, filed as Exhibit 99.1 to the Bill & Melinda Gates Foundation Trust’s Amendment No. 3 to Schedule 13G with respect to Coca Cola FEMSA, S.A. de C.V. on February 13, 2007, SEC File No. 005-52421, and incorporated by reference herein.

 

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