SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
DELPHI MANAGEMENT PARTNERS VI LLC

(Last) (First) (Middle)
3000 SAND HILL RD, BLDG 1, STE 135
C/O DELPHI VENTURES

(Street)
MENLO PARK CA 94025

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
SEATTLE GENETICS INC /WA [ SGEN ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
01/17/2007
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
X Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 01/17/2007 C 1,980,200(4) A (1) 1,980,200(4) D(4)(5)
Common Stock 01/17/2007 C 19,800(4) A (1) 2,000,000(4) I See Footnote(2)(4)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Series A Convertible Preferred Stock (1) 01/17/2007 C 198,020(4) (3) (3) Common Stock 1,980,200(4) (1) 0 D(4)(5)
Series A Convertible Preferred Stock (1) 01/17/2007 C 1,980(4) (3) (3) Common Stock 19,800(4) (1) 0 I See Footnote(2)(4)
1. Name and Address of Reporting Person*
DELPHI MANAGEMENT PARTNERS VI LLC

(Last) (First) (Middle)
3000 SAND HILL RD, BLDG 1, STE 135
C/O DELPHI VENTURES

(Street)
MENLO PARK CA 94025

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
DELPHI VENTURES VI LP

(Last) (First) (Middle)
3000 SAND HILL RD STE 135
C/O DELPHI VENTURES

(Street)
MENLO PARK CA 94025

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
DELPHI BIOINVESTMENTS VI LP

(Last) (First) (Middle)
3000 SAND HILL ROAD, BLDG 1, STE 135
C/O DELPHI VENTURES

(Street)
MENLO PARK CA 94025

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
Explanation of Responses:
1. The conversion price of the Series A Convertible Preferred Stock is equal to the initial purchase price divided by $2.50, as adjusted for stock splits, stock dividends, combinations and other similar capitalizations of the Issuer's Common and Preferred Stock. Initially, this results in a 1 for 10 conversion ratio. Each share of Series A Convertible Preferred Stock is entitled to 0.93 votes for each share of common stock into which such share of Convertible Preferred Stock could then be converted.
2. The amount shown represents the beneficial ownership by Delphi BioInvestments VI, L.P.
3. All of the outstanding shares of the Issuer's Series A Convertible Preferred Stock are convertible at the holder's option into shares of the Issuer's common stock on a 10 to 1 basis any time after July 8, 2004. This right to convert does not expire.
4. The Designated Filer is executing this report on behalf of all Reporting Persons, each of whom has authorized it to do so. Each of the Reporting Persons disclaims beneficial ownership of the Issuer's securities to the extent it exceeds such Reporting Person's pecuniary interest.The amounts shown in Table I and Table II represent the beneficial ownership of the Issuer's equity securities by (a) Delphi Ventures VI, L.P. and (b) Delphi BioInvestments VI, L.P. (the "Delphi Entities"), a portion of which may be deemed attributable to the Designated Filer because it is the general partner of each of the Delphi Entities. The Designated Filer disclaims such beneficial ownership except to the extent of its pecuniary interest therein.
5. The amount shown represents the beneficial ownership by Delphi Ventures, VI, L.P.
Deepika R. Pakianathan 01/19/2007
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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