UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K/A

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 7, 2018

TechTarget, Inc.

(Exact name of Registrant as Specified in Its Charter)

Registrant’s Telephone Number, Including Area Code: (617) 431-9200

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instructions A.2. below):

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Explanatory Note

This Form 8-K/A amends the current report on Form 8-K of TechTarget, Inc. filed with the Securities and Exchange Commission on November 7, 2018 (the “Original Filing”). This amendment is required because an error was made in which the Original Filing included a draft version of the Letter to Shareholders dated November 7, 2018 as Exhibit 99.1 rather than the final version. This Form 8-K/A is being filed solely for the purpose of re-filing as Exhibit 99.1 the correct final version of our Letter to Shareholders dated November 7, 2018 (the “Letter”).

Item 2.02 Results of Operations and Financial Condition.

On November 7, 2018, TechTarget, Inc. (the “Company”) disclosed its results for the three and nine months ended September 30, 2018 in its Shareholder Letter, which is posted on the Investor Relations section of its website at www.techtarget.com. The Letter to Shareholders is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information contained in Item 2.02 of this Form 8-K (including Exhibit 99.1) is furnished in accordance with SEC Release No. 33-8216 and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation by reference language in such filing, except as expressly set forth by specific reference in such a filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

The following exhibits relating to Item 2.02 shall be deemed to be furnished, and not filed:

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.