X0609 4 2026-09-25 0 0001713683 Zscaler, Inc. ZS 0001198529 RUBIN KEVIN false 120 HOLGER WAY SAN JOSE CA 95134 0 1 0 0 Chief Financial Officer 1 Common Stock 2026-09-25 4 S 0 100 194.7592 D 43187 D Common Stock 2026-09-25 4 S 0 189 195.6431 D 42998 D Common Stock 2026-09-25 4 S 0 118 196.5724 D 42880 D Common Stock 2026-09-25 4 S 0 3 197.3167 D 42877 D Common Stock 2026-09-25 4 S 0 9 199.7133 D 42868 D Common Stock 2026-09-25 4 S 0 20 201.1101 D 42848 D Common Stock 2026-09-25 4 S 0 5 202.058 D 42843 D Common Stock 2026-09-25 4 S 0 36 203.1452 D 42807 D Common Stock 2026-09-25 4 S 0 12 204.4167 D 42795 D Common Stock 2026-09-25 4 S 0 20 205.3495 D 42775 D Common Stock 2026-09-25 4 S 0 4 205.9925 D 42771 D Common Stock 2026-09-25 4 S 0 3 207.80 D 42768 D The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on March 24, 2026. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $194.15 to $195.14, 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 (2) through (12) 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 $195.19 to $196.1698, 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 (2) through (12) 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 $196.19 to $197.05, 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 (2) through (12) 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 $197.19 to $197.46, 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 (2) through (12) 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 $199.50 to $199.87, 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 (2) through (12) 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 $200.54 to $201.4035, 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 (2) through (12) 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 $201.68 to $202.29, 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 (2) through (12) 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 $202.84 to $203.61, 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 (2) through (12) 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 $203.89 to $204.75, 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 (2) through (12) 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 $204.89 to $205.75, 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 (2) through (12) 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 $205.99 to $206.00, 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 (2) through (12) to this Form 4. /s/ Torrie Nute, by power of attorney 2026-09-28