TechTarget officer adds 221 shares to planned sale

The reported sale is tied to withholding taxes from settlement of vested restricted stock units.

Rhea-AI Filing Summary

TechTarget, Inc. (TTGT) officer Steven Niemiec amended a notice listing 8,950 common shares for sale, with an aggregate market value of $34,457.50. The amendment increases the reported sale amount by 221 shares. The shares are being sold to cover withholding taxes due in connection with the settlement of vested restricted stock units. The notice also lists 19,437 shares acquired through an RSU vest on September 22, 2026, and 21,427 shares sold on August 28, 2026, for $82,484.89.

Key Figures

Shares listed for sale: 8,950 common shares Aggregate market value: $34,457.50 Increase in reported sale amount: 221 shares +3 more

6 metrics

Shares listed for sale 8,950 common shares Amended notice; approximate sale date September 23, 2026

Aggregate market value $34,457.50 Shares listed for sale

Increase in reported sale amount 221 shares Amendment to the prior notice

Shares acquired through RSU vest 19,437 shares September 22, 2026

Shares sold during prior three months 21,427 shares August 28, 2026

Aggregate value of prior sales $82,484.89 Shares sold during prior three months

Key Terms

Restricted Stock Units, sell-to-cover transaction, aggregate market value, Rule 144

4 terms

Restricted Stock Units financial

"settlement of vested Restricted Stock Units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

sell-to-cover transaction financial

"tax withholding sell-to-cover transaction"

A sell-to-cover transaction is when a person granted company stock (for example as part of compensation or option exercise) immediately sells enough of those shares to pay required taxes or exercise costs and keeps the rest. Think of it like cashing part of a bonus to cover the tax bill; it provides necessary cash without the holder needing outside funds. Investors watch these sales because they increase trading volume and slightly reduce insider holdings, but they often reflect routine tax or cost management rather than a judgment on the company’s prospects.

aggregate market value financial

"amends the aggregate market value"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

Rule 144 regulatory

"See the definition of “person” in paragraph (a) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many TTGT shares did Steven Niemiec report for sale?

Steven Niemiec’s amended notice lists 8,950 common shares for sale, with an aggregate market value of $34,457.50.

Why did TTGT officer Steven Niemiec amend his Form 144 notice?

The amendment increased the reported sale amount by 221 shares because the original notice underestimated the share count after the tax-withholding sell-to-cover transaction’s execution price was lower than expected.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/24/2026 - 05:30 PM Accepted by SEC EDGAR 09/24/2026 - 05:30 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144/A

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