144 0001959652 XXXXXXXX LIVE 0002018064 TechTarget, Inc. 001-42428 275 Grove Street Newton MA 02466 (617)-431-9200 Steven Niemiec Officer Common Stock Morgan Stanley Smith Barney LLC

Executive Financial Services 1 New York Plaza, 8th Floor New York NY 10004

21053 123581 71489000 08/29/2025 Nasdaq Common Stock 08/13/2025 RSU Vest TechTarget, Inc. N 47187 08/13/2025 N/A Y These shares are being sold to cover withholding taxes due in connection with TechTarget, Inc.'s delivery to the reporting person of shares in settlement of restricted stock units, the vesting of which was previously reported on a Form 4 filed August 15, 2025. 08/29/2025 /s/ Steven Niemiec