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*
ARCH VENTURE FUND V LP

(Last) (First) (Middle)
8725 WEST HIGGINS ROAD, SUITE 290

(Street)
CHICAGO IL 60631

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Trubion Pharmaceuticals, Inc [ TRBN ]
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)
10/28/2010
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 10/28/2010 S 2,209,741 D (1) 0 D(2)(3)
Common Stock 10/28/2010 S 14,503 D (1) 0 D(4)(5)
Common Stock 10/28/2010 S 132,802 D (1) 0 D(6)(7)
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
1. Name and Address of Reporting Person*
ARCH VENTURE FUND V LP

(Last) (First) (Middle)
8725 WEST HIGGINS ROAD, SUITE 290

(Street)
CHICAGO IL 60631

(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*
ARCH V ENTREPRENEURS FUND LP

(Last) (First) (Middle)
8725 WEST HIGGINS ROAD, SUITE 290

(Street)
CHICAGO IL 60631

(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*
HEALTHCARE FOCUS FUND LP

(Last) (First) (Middle)
8725 WEST HIGGINS ROAD, SUITE 290

(Street)
CHICAGO IL 60631

(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*
ARCH VENTURE PARTNERS V LP

(Last) (First) (Middle)
8725 WEST HIGGINS ROAD, SUITE 290

(Street)
CHICAGO IL 60631

(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*
ARCH VENTURE PARTNERS V LLC

(Last) (First) (Middle)
8725 WEST HIGGINS ROAD, SUITE 290

(Street)
CHICAGO IL 60631

(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*
CRANDELL KEITH

(Last) (First) (Middle)
8725 WEST HIGGINS ROAD, SUITE 290

(Street)
CHICAGO IL 60631

(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*
BYBEE CLINTON

(Last) (First) (Middle)
8725 WEST HIGGINS ROAD, SUITE 290

(Street)
CHICAGO IL 60631

(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*
LAZARUS STEVEN

(Last) (First) (Middle)
8725 WEST HIGGINS ROAD, SUITE 290

(Street)
CHICAGO IL 60631

(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*
NELSEN ROBERT

(Last) (First) (Middle)
8725 WEST HIGGINS ROAD, SUITE 290

(Street)
CHICAGO IL 60631

(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. Securities disposed of pursuant to that certain Agreement and Plan of Merger dated as of August 12, 2010 (attached as Exhibit 2.1 to Trubion's Current Report on Form 8-K filed with the Securities and Exchange Commission on August 13, 2010), as amended, among the issuer and Emergent BioSolutions Inc. ("Emergent"), and certain affiliates, in exchange for (a) an aggregate of $3,217,367.79 cash, (b) 386,791 shares of Emergent common stock having a market value of $18.26 per share on the effective date of the merger and (c) 2,357,046 contingent value rights, which represent the right to receive possible additional cash payments.
2. Securities held of record by ARCH Venture Fund V, L.P. ("ARCH V"). ARCH Venture Partners V, L.P. (the "GPLP"), as the sole general partner of ARCH V, may be deemed to beneficially own certain of the shares held of record by ARCH V. The GPLP disclaims beneficial ownership of all shares held of record by ARCH V in which the GPLP does not have an actual pecuniary interest. ARCH Venture Partners V, LLC (the "GPLLC"), as the sole general partner of the GPLP, may be deemed to beneficially own certain of the shares held of record by ARCH V. The GPLLC disclaims beneficial ownership of all shares held of record by ARCH V in which the GPLLC does not have an actual pecuniary interest.
3. Each of Messrs. Crandell, Nelsen, Bybee and Lazarus, as the individual Managing Directors of the GPLLC, may be deemed to beneficially own certain of the shares held of record by ARCH V. Each of Messrs. Crandell, Nelsen, Bybee and Lazarus disclaims beneficial ownership of all shares held of record by ARCH V in which he does not have an actual pecuniary interest.
4. Securities held of record by ARCH V Entrepreneurs Fund, L.P. ("Entrepreneurs"). The GPLP, as the sole general partner of Entrepreneurs, may be deemed to beneficially own certain of the shares held of record by Entrepreneurs. The GPLP disclaims beneficial ownership of all shares held of record by Entrepreneurs in which the GPLP does not have an actual pecuniary interest. The GPLLC, as the sole general partner of the GPLP, may be deemed to beneficially own certain of the shares held of record by Entrepreneurs. The GPLLC disclaims beneficial ownership of all shares held of record by Entrepreneurs in which the GPLLC does not have an actual pecuniary interest.
5. Each of Messrs. Crandell, Nelsen, Bybee and Lazarus, as the individual Managing Directors of the GPLLC, may be deemed to beneficially own certain of the shares held of record by Entrepreneurs. Each of Messrs. Crandell, Nelsen, Bybee and Lazarus disclaims beneficial ownership of all shares held of record by Entrepreneurs in which he does not have an actual pecuniary interest.
6. Securities held of record by Healthcare Focus Fund, L.P. ("Healthcare"). The GPLP, as the sole general partner of Healthcare, may be deemed to beneficially own certain of the shares held of record by Healthcare. The GPLP disclaims beneficial ownership of all shares held of record by Healthcare in which the GPLP does not have an actual pecuniary interest. The GPLLC, as the sole general partner of the GPLP, may be deemed to beneficially own certain of the shares held of record by Healthcare. The GPLLC disclaims beneficial ownership of all shares held of record by Healthcare in which the GPLLC does not have an actual pecuniary interest.
7. Each of Messrs. Crandell, Nelsen, Bybee and Lazarus, as the individual Managing Directors of the GPLLC, may be deemed to beneficially own certain of the shares held of record by Healthcare. Each of Messrs. Crandell, Nelsen, Bybee and Lazarus disclaims beneficial ownership of all shares held of record by Healthcare in which he does not have an actual pecuniary interest.
Remarks:
/s/ Mark McDonnell, as Attorney-in-Fact for Keith Crandell, Managing Director of the general partner of the general partner of ARCH V 11/01/2010
/s/ Mark McDonnell, as Attorney-in-Fact for Keith Crandell, Managing Director of the general partner of the general partner of Entrepreneurs 11/01/2010
/s/ Mark McDonnell, as Attorney-in-Fact for Keith Crandell, Managing Director of the general partner of the general partner of Healthcare 11/01/2010
/s/ Mark McDonnell, as Attorney-in-Fact for Keith Crandell, Managing Director of the general partner of GPLP 11/01/2010
/s/ Mark McDonnell, as Attorney-in-Fact for Keith Crandell, Managing Director of GPLLC 11/01/2010
/s/ Mark McDonnell, as Attorney-in-Fact for Keith Crandell 11/01/2010
/s/ Mark McDonnell, as Attorney-in-Fact for Clinton Bybee 11/01/2010
/s/ Mark McDonnell, as Attorney-in-Fact for Steven Lazarus 11/01/2010
/s/ Mark McDonnell, as Attorney-in-Fact for Robert Nelsen 11/01/2010
** 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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