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	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	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* BAIN CAPITAL INVESTORS LLC (Last) (First) (Middle) C/O BAIN CAPITAL, LLC 111 HUNTINGTON AVENUE (Street) BOSTON MA 02199 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol CMGI INC [ CMGI ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) X Other (specify below) See Footnote (4)
	3. Date of Earliest Transaction (Month/Day/Year) 11/11/2004
	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, $0.01 par value	11/11/2004		S		515,077	D	$1.66	19,655,415	I	See footnotes(1)(2)(3)

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* BAIN CAPITAL INVESTORS LLC (Last) (First) (Middle) C/O BAIN CAPITAL, LLC 111 HUNTINGTON AVENUE (Street) BOSTON MA 02199 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) X Other (specify below) See Footnote (4)

1. Name and Address of Reporting Person* Bain Capital Partners V, L.P. (Last) (First) (Middle) 111 HUNTINGTON AVENUE (Street) BOSTON MA 02199 (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* Information Partners (Last) (First) (Middle) 111 HUNTINGTON AVENUE (Street) BOSTON MA 02199 (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* BAIN CAPITAL FUND IV LP (Last) (First) (Middle) 111 HUNTINGTON AVENUE (Street) BOSTON MA 02199 (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* BCIP TRUST ASSOCIATES LP (Last) (First) (Middle) 111 HUNTINGTON AVENUE (Street) BOSTON MA 02199 (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* BCIP TRUST ASSOCIATES II (Last) (First) (Middle) 111 HUNTINGTON AVENUE (Street) BOSTON MA 02199 (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* BCIP TRUST ASSOCIATES II B (Last) (First) (Middle) 111 HUNTINGTON AVE (Street) BOSTON MA 02199 (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* BCIP ASSOCIATES (Last) (First) (Middle) 111 HUNTINGTON AVENUE (Street) BOSTON MA 02199 (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. Bain Capital Investors, LLC ("BCI"), as the sole general partner of Bain Capital Partners IV, L.P. ("BCP IV"), and BCP IV, as the sole general partner of Bain Capital Fund IV, L.P. ("BCF") and the managing partner of Information Partners, may each be deemed to share voting and dispositive power with respect to the 10,776,811 shares held by BCF and the 379,389 shares held by Information Partners. BCI and BCP IV disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

2. BCI, as the sole general partner of Bain Capital Partners V, L.P. ("BCP V") may be deemed to share voting and dispositive power with respect to the 7,498,439 shares held by BCP V. BCI disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.

3. BCI is the sole member of the management committee of each of BCIP Associates ("BCIP") and BCIP Trust Associates, L.P. ("BCIPT"), and is the managing partner of BCIP Trust Associates II ("BCIPT II") and BCIP Trust Associates II-B ("BCIPT II-B") and thus may be deemed to share voting and dispositive power with respect to the 624,744 shares held by BCIP, the 370,979 shares held by BCIPT, the 3,841 shares held by BCIPT II, and the 1,212 shares held by BCIPT II-B. BCI disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.

Remarks:

(4)BCF, Information Partners, BCIP, BCIPT, BCPV, BCIPT II and BCIPT II-B are parties to a Stock Transfer Agreement, dated as of March 23, 2003 and a Stockholder Selling Agreement dated as of August 2, 2004 and consequently may be considered to acting as a group with the other persons and entities party thereto. The Reporting Persons disclaim beneficial ownership of all such shares held by such parties and make this filing on behalf of themselves only.

	/s/ Bain Capital Investors, LLC	11/15/2004
	** Signature of Reporting Person	Date
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