FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * SPOON ALAN G   2. Issuer Name and Ticker or Trading Symbol TechTarget Inc [TTGT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O POLARIS VENTURE PARTNERS, 1000 WINTER STREET 3. Date of Earliest Transaction (Month/Day/Year) 12/09/2010 (Street) WALTHAM, MA 02451 4. If Amendment, Date 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 (City) (State) (Zip) 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 12/09/2010   S   3,839,599 D $ 6 2,000,440 I See Footnote (1) Common Stock 12/09/2010   S   99,695 D $ 6 51,941 I See Footnote (2) Common Stock 12/09/2010   S   60,706 D $ 6 31,629 I See Footnote (3)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities (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 of Derivative Security: 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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
SPOON ALAN G C/O POLARIS VENTURE PARTNERS 1000 WINTER STREET WALTHAM, MA 02451		X
Flint Jonathan A C/O POLARIS VENTURE PARTNERS 1000 WINTER STREET WALTHAM, MA 02451		X
MCGUIRE TERRANCE C/O POLARIS VENTURE PARTNERS 1000 WINTER STREET WALTHAM, MA 02451		X
POLARIS VENTURE PARTNERS IV LP C/O POLARIS VENTURE PARTNERS 1000 WINTER STREET WALTHAM, MA 02451		X
POLARIS VENTURE PARTNERS ENTREPRENEURS FUND IV LP C/O POLARIS VENTURE PARTNERS 1000 WINTER STREET WALTHAM, MA 02451		X
Polaris Venture Management Co IV LLC C/O POLARIS VENTURE PARTNERS 1000 WINTER STREET WALTHAM, MA 02451		X
POLARIS VENTURE PARTNERS III LP C/O POLARIS VENTURE PARTNERS 1000 WINTER STREET WALTHAM, MA 02451		X
POLARIS VENTURE PARTNERS ENTREPRENEURS FUND III LP C/O POLARIS VENTURE PARTNERS 1000 WINTER STREET WALTHAM, MA 02451		X
POLARIS VENTURE PARTNERS FOUNDERS FUND III LP C/O POLARIS VENTURE PARTNERS 1000 WINTER STREET WALTHAM, MA 02451		X
POLARIS VENTURE MANAGEMENT CO III LLC C/O POLARIS VENTURE PARTNERS 1000 WINTER STREET WALTHAM, MA 02451		X

Signatures

/s/ Alan Spoon Alan Spoon		12/10/2010
**Signature of Reporting Person		Date
/s/ Jonathan A. Flint Jonathan A. Flint		12/10/2010
**Signature of Reporting Person		Date
/s/ Terrance G. McGuire Terrance G. McGuire		12/10/2010
**Signature of Reporting Person		Date
/s/ John Gannon Polaris Venture Management Co. IV, L.L.C. By: John Gannon Authorized signatory for Polaris Venture Management Co. IV, L.L.C.		12/10/2010
**Signature of Reporting Person		Date
/s/ John Gannon Polaris Venture Partners IV, L.P. By: John Gannon Authorized signatory for Polaris Venture Partners IV, L.P.		12/10/2010
**Signature of Reporting Person		Date
/s/ John Gannon Polaris Venture Partners Entrepreneurs' Fund IV, L.P. By: John Gannon Authorized signatory for Polaris Venture Partners Entrepreneurs' Fund IV, L.P.		12/10/2010
**Signature of Reporting Person		Date
/s/ John Gannon Polaris Venture Management Co. III, L.L.C. By: John Gannon Authorized signatory for Polaris Venture Management Co. III, L.L.C.		12/10/2010
**Signature of Reporting Person		Date
/s/ John Gannon Polaris Venture Partners III, L.P. By: John Gannon Authorized signatory for Polaris Venture Partners III, L.P.		12/10/2010
**Signature of Reporting Person		Date
/s/ John Gannon Polaris Venture Partners Founders' Fund III, L.P. By: John Gannon Authorized signatory for Polaris Venture Partners Founders' Fund III, L.P.		12/10/2010
**Signature of Reporting Person		Date
/s/ John Gannon Polaris Venture Partners Entrepreneurs' Fund III, L.P. By: John Gannon Authorized signatory for Polaris Venture Partners Entrepreneurs' Fund III, L.P.		12/10/2010
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	The reportable securities are owned directly by Polaris Venture Partners III, L.P. ("PVP III"). Polaris Venture Management Co. III, L.L.C. ("PVM III") is the general partner of PVP III. PVM III disclaims beneficial ownership of these securities and this report shall not be deemed an admission that PVM III is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of its pecuniary interest therein. Each of Jonathan A. Flint ("Flint"), Terrance G. McGuire ("McGuire") and Alan G. Spoon ("Spoon") are the managing members of PVM III. Each of Flint, McGuire and Spoon disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein.
(2)	The reportable securities are owned directly by Polaris Venture Partners Founders' Fund III LP ("PVPF III"). PVM III is the general partner of PVPF III. PVM III disclaims beneficial ownership of these securities and this report shall not be deemed an admission that PVM III is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of its pecuniary interest therein. Each of Flint, McGuire McGuire and Spoon are the managing members of PVM III. Each of Flint, McGuire and Spoon disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein.
(3)	The reportable securities are owned directly by Polaris Venture Partners Entrepreneurs' Fund III, L.P. ("PVPE III"). PVM III is the general partner of PVPE III. PVM III disclaims beneficial ownership of these securities and this report shall not be deemed an admission that PVM III is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of its pecuniary interest therein. Each of Flint, McGuire McGuire and Spoon are the managing members of PVM III. Each of Flint, McGuire and Spoon disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein.

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