144 0002022306 XXXXXXXX LIVE 0001846069 Nextdoor Holdings, Inc. 001-40246 420 Taylor Street San Francisco CA 94102 4153440333 SOPHIA CONTRERAS SCHWARTZ Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

43015 65382.80 260137108 04/16/2026 NYSE Common 07/15/2025 Restricted Stock Units Issuer N 43015 07/15/2025 N/A N 10b5-1 Sales for SOPHIA SCHWARTZ

420 Taylor Street San Francisco CA 94102

Common 02/18/2026 2500 4125.00 The securities to be sold were acquired upon the vesting of restricted stock units during the period of 7/15/2025 through 4/15/2026. 04/16/2026 09/04/2025 /s/ Sophia Contreras Schwartz