NXDR · Nextdoor Holdings, Inc. · Insider Trading

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 3, 2026.

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.19 to $2.30 per share, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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 May 22, 2026.

Includes 2,500 shares of Class A Common Stock acquired pursuant to the Nextdoor Holdings, Inc. 2021 Employee Stock Purchase Plan on August 14, 2026 in a transaction that was exempt under Rules 16b-3(c) and 16b-3(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 September 4, 2025.

Includes 2,500 shares of Class A Common Stock acquired pursuant to the Nextdoor Holdings, Inc. 2021 Employee Stock Purchase Plan on August 14, 2026 in a transaction that was exempt under Rules 16b-3(c) and 16b-3(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 September 4, 2025.

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.

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 September 4, 2025.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock, subject only to continued service to the Issuer.

The RSU award vests in equal quarterly installments over four years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting event on April 15, 2026, 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.

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 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.

These RSUs do not expire; they either vest or are cancelled prior to the vesting date.

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 equal quarterly installments over four years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting date on April 15, 2026, 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.

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 equal quarterly installments over four years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting event on April 15, 2025, 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.

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 equal quarterly installments over four years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting date on April 15, 2026, 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.

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 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 April 15, 2025, 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.

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 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.

These RSUs do not expire; they either vest or are cancelled prior to the vesting date.

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 eight equal quarterly installments on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting event on April 15, 2025, 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.

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 eight equal quarterly installments on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting event on April 15, 2025, 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.

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 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 April 15, 2025, 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.

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 equal quarterly installments over four years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting event on July 15, 2024, 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.

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 equal quarterly installments over four years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting event on April 15, 2026, 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.

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 four equal quarterly installments on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting event on April 15, 2026, 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.

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 equal quarterly installments over four years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting date on April 15, 2026, 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.

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 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, 2026, 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.