X0508 4 2026-01-15 0 0001846069 Nextdoor Holdings, Inc. NXDR 0002083093 How Antoinette C/O NEXTDOOR HOLDINGS, INC. 420 TAYLOR STREET SAN FRANCISCO CA 94102 0 1 0 0 Chief Accounting Officer 1 Class A Common Stock 2026-01-15 4 M 0 6568 0 A 19260 D Class A Common Stock 2026-01-15 4 F 0 3032 1.96 D 16228 D Class A Common Stock 2026-01-15 4 M 0 3112 0 A 19340 D Class A Common Stock 2026-01-15 4 F 0 1359 1.96 D 17981 D Class A Common Stock 2026-01-15 4 M 0 7347 0 A 25328 D Class A Common Stock 2026-01-15 4 F 0 3024 1.96 D 22304 D Class A Common Stock 2026-01-15 4 M 0 7347 0 A 29651 D Class A Common Stock 2026-01-15 4 F 0 3024 1.96 D 26627 D Class A Common Stock 2026-01-15 4 M 0 9479 0 A 36106 D Class A Common Stock 2026-01-15 4 F 0 3901 1.96 D 32205 D Class A Common Stock 2026-01-16 4 S 0 13935 1.9465 D 18270 D Restricted Stock Units (RSU) 2026-01-15 4 M 0 6568 0 D Class A Common Stock 6568 6569 D Restricted Stock Units (RSU) 2026-01-15 4 M 0 3112 0 D Class A Common Stock 3112 3113 D Restricted Stock Units (RSU) 2026-01-15 4 M 0 7347 0 D Class A Common Stock 7347 36732 D Restricted Stock Units (RSU) 2026-01-15 4 M 0 7347 0 D Class A Common Stock 7347 66117 D Restricted Stock Units (RSU) 2026-01-15 4 M 0 9479 0 D Class A Common Stock 9479 94787 D Sale of shares made pursuant to and in accordance with the requirements of Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, under a plan adopted by the reporting person on June 2, 2025. Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock. The RSU award vests in quarterly installments over two years, with 1/6th of the total shares vesting on July 15, 2024, followed by three additional quarterly vesting events of 1/6th of the total shares on October 15, 2024, January 15, 2025, and April 15, 2025, respectively, and four final quarterly vesting events of 1/12th of the total shares on July 15, 2025, October 15, 2025, January 15, 2026, and April 15, 2026, respectively, subject to the reporting person's continued service to the Issuer on each vesting date. These RSUs do not expire; they either vest or are cancelled prior to the vesting date. The RSU award vests in equal quarterly installments over one year on January 15, April 15, July 15, and October 15, with the first such vesting event on July 15, 2025, subject to the reporting person's continued service to the Issuer on each vesting date. The RSU award vests in equal quarterly installments over two years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting date on July 15, 2025, subject to the reporting person's continued service to the Issuer on each vesting date. The RSU award vests in equal quarterly installments over three years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting date on July 15, 2025, subject to the reporting person's continued service to the Issuer on each vesting date. The RSU award vests in equal quarterly installments over three years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting date on October 15, 2025, subject to the reporting person's continued service to the Issuer on each vesting date. /s/ Sophia Contreras Schwartz, as Attorney-in-Fact for Reporting Person 2026-01-20