X0407 4 2023-03-30 0 0001477333 Cloudflare, Inc. NET 0001473289 SEIFERT THOMAS J C/O CLOUDFLARE, INC. 405 COMAL STREET AUSTIN TX 78702 0 1 0 0 Chief Financial Officer 1 Class A Common Stock 2023-03-30 4 C 0 5218 A 66573 D Class A Common Stock 2023-03-30 4 S 0 5218 60.0254 D 61355 D Class A Common Stock 2023-03-31 4 C 0 44782 A 106137 D Class A Common Stock 2023-03-31 4 S 0 44782 60.1126 D 61355 D Class A Common Stock 2023-04-03 4 C 0 15000 A 76355 D Class A Common Stock 2023-04-03 4 S 0 5790 60.2927 D 70565 D Class A Common Stock 2023-04-03 4 S 0 9210 61.0956 D 61355 D Employee Stock Option (right to buy) 2.04 2023-03-30 4 M 0 5218 0.00 D 2027-07-25 Class B Common Stock 5218 1090123 D Class B Common Stock 2023-03-30 4 M 0 5218 0.00 A Class A Common Stock 5218 14143 D Class B Common Stock 2023-03-30 4 C 0 5218 0.00 D Class A Common Stock 5218 8925 D Employee Stock Option (right to buy) 2.04 2023-03-31 4 M 0 44782 0.00 D 2027-07-25 Class B Common Stock 44782 1045341 D Class B Common Stock 2023-03-31 4 M 0 44782 0.00 A Class A Common Stock 44782 53707 D Class B Common Stock 2023-03-31 4 C 0 44782 0.00 D Class A Common Stock 44782 8925 D Employee Stock Option (right to buy) 2.04 2023-04-03 4 M 0 15000 0.00 D 2027-07-25 Class B Common Stock 15000 1030341 D Class B Common Stock 2023-04-03 4 M 0 15000 0.00 A Class A Common Stock 15000 23925 D Class B Common Stock 2023-04-03 4 C 0 15000 0.00 D Class A Common Stock 15000 8925 D Class B Common Stock Class A Common Stock 250000 250000 I See footnote Class B Common Stock Class A Common Stock 76100 76100 I See footnote Class B Common Stock Class A Common Stock 76100 76100 I See footnote Class B Common Stock Class A Common Stock 76100 76100 I See footnote Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date. The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2022. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.00 to $60.05, 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 ranges set forth in footnotes (3) through (6) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.00 to $60.38, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.72 to $60.71, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.72 to $61.54, inclusive. The option is subject to an early exercise provision and is immediately exercisable. Shares subject to the option vest in 48 equal monthly installments following September 13, 2019. The shares are held of record by Center Court Partners Ltd., for which the reporting person serves as a partner. The shares are held of record by Center Court 2020 Trust 1 UA 12/11/20, for which the reporting person serves as trustee. The shares are held of record by Center Court 2020 Trust 2 UA 12/11/20, for which the reporting person serves as trustee. The shares are held of record by Center Court 2020 Trust 3 UA 12/11/20, for which the reporting person serves as trustee. /s/ Lindsey Cochran, by power of attorney 2023-04-03