PINS · Pinterest, Inc.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 27, 2026.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $22.925 to $23.58 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

Each share of Class B common stock, par value $0.00001 (Class B Common Stock) is convertible at any time at the option of the holder into one share of the Company's Class A common stock, par value $0.00001 (Class A Common Stock). Additionally, each share of Class B Common Stock will, subject to certain exceptions, convert automatically into one share of Class A Common Stock upon any transfer.

Represents the conversion of shares of Class B Common Stock, par value $0.00001 ("Class B Common Stock") into Class A Common Stock, par value $0.00001 ("Class A Common Stock"), in connection with the sale of such shares pursuant to a Rule 10b5-1 trading plan.

Each share of Class B common stock, par value $0.00001 (Class B Common Stock) is convertible at any time at the option of the holder into one share of the Company's Class A common stock, par value $0.00001 (Class A Common Stock). Additionally, each share of Class B Common Stock will, subject to certain exceptions, convert automatically into one share of Class A Common Stock upon any transfer.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 11, 2026.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $23.71 to $24.08 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

Includes restricted stock units that are subject to vesting conditions.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 27, 2026.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $23.685 to $24.16 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

Represents the conversion of shares of Class B Common Stock, par value $0.00001 ("Class B Common Stock") into Class A Common Stock, par value $0.00001 ("Class A Common Stock"), in connection with the sale of such shares pursuant to a Rule 10b5-1 trading plan.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 7, 2026.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $23.23 to $23.76 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

Includes restricted stock units subject to vesting requirements.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 27, 2026.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $22.3300 to $22.8100 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

Each share of Class B common stock, par value $0.00001 (Class B Common Stock) is convertible at any time at the option of the holder into one share of the Company's Class A common stock, par value $0.00001 (Class A Common Stock). Additionally, each share of Class B Common Stock will, subject to certain exceptions, convert automatically into one share of Class A Common Stock upon any transfer.

Represents the conversion of shares of Class B Common Stock, par value $0.00001 ("Class B Common Stock") into Class A Common Stock, par value $0.00001 ("Class A Common Stock"), in connection with the sale of such shares pursuant to a Rule 10b5-1 trading plan.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 27, 2026.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $22.3000 to $22.8300 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

Each share of Class B common stock, par value $0.00001 (Class B Common Stock) is convertible at any time at the option of the holder into one share of the Company's Class A common stock, par value $0.00001 (Class A Common Stock). Additionally, each share of Class B Common Stock will, subject to certain exceptions, convert automatically into one share of Class A Common Stock upon any transfer.

Represents the conversion of shares of Class B Common Stock, par value $0.00001 ("Class B Common Stock") into Class A Common Stock, par value $0.00001 ("Class A Common Stock"), in connection with the sale of such shares pursuant to a Rule 10b5-1 trading plan.

Represents shares of Class A common stock that have been withheld by the Company to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of Restricted Stock Awards (RSAs) previously reported.

Includes restricted stock units that are subject to vesting conditions.

Each share of Class B common stock, par value $0.00001 (Class B Common Stock) is convertible at any time at the option of the holder into one share of the Company's Class A common stock, par value $0.00001 (Class A Common Stock). Additionally, each share of Class B Common Stock will, subject to certain exceptions, convert automatically into one share of Class A Common Stock upon any transfer.

Represents the conversion of shares of Class B Common Stock, par value $0.00001 ("Class B Common Stock") into Class A Common Stock, par value $0.00001 ("Class A Common Stock"), in connection with the sale of such shares pursuant to a Rule 10b5-1 trading plan.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 27, 2026.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $22.7000 to $23.4700 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 25, 2025.

Includes restricted stock units subject to vesting requirements.

Represents the conversion of shares of Class B Common Stock, par value $0.00001 ("Class B Common Stock") into Class A Common Stock, par value $0.00001 ("Class A Common Stock"), in connection with the sale of such shares pursuant to a Rule 10b5-1 trading plan.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 27, 2026.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $22.0300 to $22.4950 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

Each share of Class B common stock, par value $0.00001 (Class B Common Stock) is convertible at any time at the option of the holder into one share of the Company's Class A common stock, par value $0.00001 (Class A Common Stock). Additionally, each share of Class B Common Stock will, subject to certain exceptions, convert automatically into one share of Class A Common Stock upon any transfer.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 27, 2026.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $21.9800 to $22.5700 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

Represents the conversion of shares of Class B Common Stock, par value $0.00001 ("Class B Common Stock") into Class A Common Stock, par value $0.00001 ("Class A Common Stock"), in connection with the sale of such shares pursuant to a Rule 10b5-1 trading plan.

Each share of Class B common stock, par value $0.00001 (Class B Common Stock) is convertible at any time at the option of the holder into one share of the Company's Class A common stock, par value $0.00001 (Class A Common Stock). Additionally, each share of Class B Common Stock will, subject to certain exceptions, convert automatically into one share of Class A Common Stock upon any transfer.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 27, 2026.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $22.3000 to $23.0100 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

Represents the conversion of shares of Class B Common Stock, par value $0.00001 ("Class B Common Stock") into Class A Common Stock, par value $0.00001 ("Class A Common Stock"), in connection with the sale of such shares pursuant to a Rule 10b5-1 trading plan.

Each share of Class B common stock, par value $0.00001 (Class B Common Stock) is convertible at any time at the option of the holder into one share of the Company's Class A common stock, par value $0.00001 (Class A Common Stock). Additionally, each share of Class B Common Stock will, subject to certain exceptions, convert automatically into one share of Class A Common Stock upon any transfer.

Each share of Class B common stock, par value $0.00001 (Class B Common Stock) is convertible at any time at the option of the holder into one share of the Company's Class A common stock, par value $0.00001 (Class A Common Stock). Additionally, each share of Class B Common Stock will, subject to certain exceptions, convert automatically into one share of Class A Common Stock upon any transfer.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 27, 2026.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $21.0850 to $22.0500 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

Represents the conversion of shares of Class B Common Stock, par value $0.00001 ("Class B Common Stock") into Class A Common Stock, par value $0.00001 ("Class A Common Stock"), in connection with the sale of such shares pursuant to a Rule 10b5-1 trading plan.

Each share of Class B common stock, par value $0.00001 (Class B Common Stock) is convertible at any time at the option of the holder into one share of the Company's Class A common stock, par value $0.00001 (Class A Common Stock). Additionally, each share of Class B Common Stock will, subject to certain exceptions, convert automatically into one share of Class A Common Stock upon any transfer.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 27, 2026.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $21.1900 to $21.5600 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

Represents the conversion of shares of Class B Common Stock, par value $0.00001 ("Class B Common Stock") into Class A Common Stock, par value $0.00001 ("Class A Common Stock"), in connection with the sale of such shares pursuant to a Rule 10b5-1 trading plan.

Represents the conversion of shares of Class B Common Stock, par value $0.00001 ("Class B Common Stock") into Class A Common Stock, par value $0.00001 ("Class A Common Stock"), in connection with the sale of such shares pursuant to a Rule 10b5-1 trading plan.

Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of the Class A Common Stock. Additionally, each share of Class B Common Stock will, subject to certain exceptions, convert automatically into one share of Class A Common Stock upon any transfer, and in other circumstances as outlined in the Issuer's Certificate of Incorporation.

Represents the conversion of shares of Class B Common Stock, par value $0.00001 ("Class B Common Stock") into Class A Common Stock, par value $0.00001 ("Class A Common Stock"), in connection with the sale of such shares pursuant to a Rule 10b5-1 trading plan.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 26, 2026.

The reported price in Column 4 is the sale price. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

Includes restricted stock units subject to vesting requirements.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 27, 2026.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $19.6400 to $20.2150 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 27, 2026.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $20.0000 to $20.4350 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 27, 2026.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $19.1400 to $19.9900 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of the Class A Common Stock. Additionally, each share of Class B Common Stock will, subject to certain exceptions, convert automatically into one share of Class A Common Stock upon any transfer, and in other circumstances as outlined in the Issuer's Certificate of Incorporation.

Represents the conversion of shares of Class B Common Stock, par value $0.00001 ("Class B Common Stock") into Class A Common Stock, par value $0.00001 ("Class A Common Stock"), in connection with the sale of such shares pursuant to a Rule 10b5-1 trading plan.

Represents the conversion of shares of Class B Common Stock, par value $0.00001 ("Class B Common Stock") into Class A Common Stock, par value $0.00001 ("Class A Common Stock"), in connection with the sale of such shares pursuant to a Rule 10b5-1 trading plan.

Represents shares of Class A Common Stock that have been withheld by the Company to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of previously reported Restricted Stock Units ("RSUs").

Includes RSUs subject to vesting conditions.

Represents shares of Class A Common Stock that have been withheld by the Company to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of previously reported Restricted Stock Units ("RSUs").

Includes RSUs subject to vesting conditions.

Represents shares of Class A Common Stock that have been withheld by the Company to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units ("RSUs").

Includes RSUs subject to vesting requirements.

Represents shares of Class A Common Stock that have been withheld by the Company to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units ("RSUs").

Includes RSUs subject to vesting requirements.

Represents the conversion of shares of Class B Common Stock, par value $0.00001 ("Class B Common Stock") into Class A Common Stock, par value $0.00001 ("Class A Common Stock"), in connection with the sale of such shares pursuant to a Rule 10b5-1 trading plan.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 25, 2025.

Includes restricted stock units subject to vesting requirements.

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 27, 2026.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $20.22 to $20.91 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.

Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of the Class A Common Stock. Additionally, each share of Class B Common Stock will, subject to certain exceptions, convert automatically into one share of Class A Common Stock upon any transfer, and in other circumstances as outlined in the Issuer's Certificate of Incorporation.

Represents the conversion of shares of Class B Common Stock, par value $0.00001 ("Class B Common Stock") into Class A Common Stock, par value $0.00001 ("Class A Common Stock"), in connection with the sale of such shares pursuant to a Rule 10b5-1 trading plan.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $20.22 to $20.91 per share. The Reporting Person undertakes to provide to the Company, any security holder of the Company 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.