X0508 4 2024-03-06 0001101239 EQUINIX INC EQIX 0001502558 Meyers Charles J ONE LAGOON DRIVE 4TH FLOOR REDWOOD CITY CA 94065 1 CEO and President 1 Common Stock 2024-03-06 4 M 0 1754 0 A 15668 D Common Stock 2024-03-07 4 S 0 300 899.7867 D 15368 D Common Stock 2024-03-07 4 S 0 400 900.8225 D 14968 D Common Stock 2024-03-07 4 S 0 200 902.245 D 14768 D Common Stock 2024-03-07 4 S 0 200 903.33 D 14568 D Common Stock 2024-03-07 4 S 0 200 904.68 D 14368 D Common Stock 2024-03-07 4 S 0 354 906.0395 D 14014 D Common Stock 2024-03-07 4 S 0 100 912.09 D 13914 D Restricted Stock Unit 0 2024-03-06 4 A 0 1754 0 A Common Stock 1754 1754 D Restricted Stock Unit 0 2024-03-06 4 M 0 1754 0 D Common Stock 1754 0 D Restricted Stock Unit 0 2024-03-07 4 A 0 7664 0 A Common Stock 7664 7664 D Shares sold pursuant to a 10b5-1 Trading Plan. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $899.49 to $900.07, inclusive. The reporting person undertakes to provide to Equinix, Inc, any security holder of Equinix Inc, 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 7 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 $900.64 to $901.25 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $902.00 to $902.49 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $903.01 to $903.65 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $904.25 to $905.11 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $905.87 to $906.31 inclusive. Under the 2023 Annual Incentive Plan, subject to meeting performance criteria, the reporting person was eligible to receive a bonus to be paid in the form of fully-vested restricted stock units. The Compensation Committee has determined that the performance criteria were attained, and therefore 100% of the award was granted on March 6, 2024 as reported in this Form 4. Restricted stock unit award expires upon reporting person's termination of service. Vesting is dependent upon continuous active service as an employee, consultant or director of the Company or a subsidiary of the Company (Service) throughout the vesting period. The Restricted Stock Units shall vest as follows: 33.33% of the RSUs vested on January 15, 2025 and an additional 33.33% of the RSUs will each vest on January 15, 2026 and January 15, 2027. /s/ Samantha Lagocki, POA 2024-03-08