144/A: Filer Information

Filer CIK

0001959652

Filer CCC

XXXXXXXX

Previous Accession Number Of The Filing

0001193125-26-398629

Is this a LIVE or TEST Filing?

LIVE

TEST

Submission Contact Information

Name

Phone

E-Mail Address

144/A: Issuer Information

Name of Issuer

TechTarget, Inc.

SEC File Number

001-42428

Address of Issuer

275 Grove Street
Newton
MASSACHUSETTS
02466

Phone

(617)-431-9200

Name of Person for Whose Account the Securities are To Be Sold

Steven Niemiec

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

Officer

144/A: Securities Information

Title of the Class of Securities To Be Sold

Name and Address of the Broker

Number of Shares or Other Units To Be Sold

Aggregate Market Value

Number of Shares or Other Units Outstanding

Approximate Date of Sale

Name the Securities Exchange

Common Stock

E*TRADE Securities LLC
PO Box 484
Jersey City � NJ � 07303-0484

8950

34457.50

72606498

09/23/2026

Nasdaq

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144/A: Securities To Be Sold

Title of the Class

Date you Acquired

Nature of Acquisition Transaction

Name of Person from Whom Acquired

Is this a Gift?

Date Donor Acquired

Amount of Securities Acquired

Date of Payment

Nature of Payment *

Common Stock

09/22/2026

RSU Vest

TechTarget, Inc.

19437

09/22/2026

N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144/A: Securities Sold During The Past 3 Months

Name and Address of Seller

Title of Securities Sold

Date of Sale

Amount of Securities Sold

Gross Proceeds

Steven Niemiec
275 Grove St
Newton � MA � 02466

Common Stock

08/28/2026

21427

82484.89

144/A: Remarks and Signature

Remarks

These shares are being sold to cover withholding taxes due in connection with the settlement of vested Restricted Stock Units. This amendment to the Form 144 filed on September 23, 2026, increases the number of shares to be sold by 221 shares and amends the aggregate market value in accordance with Instruction 3(d). The original filing underestimated the share count due to a lower-than-expected execution price in the tax withholding sell-to-cover transaction.

Date of Notice

09/24/2026

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

/s/ Steven Niemiec

144/A: Filer Information

Submission Contact Information

144/A: Issuer Information

144/A: Securities Information

144/A: Securities To Be Sold

144/A: Securities Sold During The Past 3 Months

144/A: Remarks and Signature

ATTENTION:

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)