X0508 4 2025-11-17 0001101239 EQUINIX INC EQIX 0001502558 Meyers Charles J ONE LAGOON DRIVE 4TH FLOOR REDWOOD CITY CA 94065 1 1 Executive Chairman 1 Common Stock 2025-11-17 4 S 0 200 771.652 D 15313 D Common Stock 2025-11-17 4 S 0 400 773.6716 D 14913 D Common Stock 2025-11-17 4 S 0 693 775.1055 D 14220 D Common Stock 2025-11-17 4 S 0 627 775.8866 D 13593 D Common Stock 2025-11-17 4 S 0 606 776.8604 D 12987 D Common Stock 2025-11-17 4 S 0 428 779.0178 D 12559 D Common Stock 2025-11-17 4 S 0 450 779.9802 D 12109 D Common Stock 2025-11-17 4 S 0 355 781.2435 D 11754 D Common Stock 2025-11-17 4 S 0 793 782.3081 D 10961 D Common Stock 2025-11-17 4 S 0 198 783.1693 D 10763 D Common Stock 2025-11-17 4 S 0 40 783.81 D 10723 D Common Stock 2025-11-17 4 S 0 40 784.90 D 10683 D Common Stock 2025-11-17 4 S 0 177 785.211 D 10506 D Common Stock 2025-11-17 4 S 0 80 786.81 D 10426 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 $771.27 to $771.96, 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 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 $773.19 to $774.09 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $774.38 to $775.38 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $775.39 to $776.37 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $776.57 to $777.51 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $778.46 to $779.45 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $779.63 to $780.59 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $780.72 to $781.66 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $781.75 to $782.75 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $782.79 to $783.63 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $784.97 to $785.27 inclusive. /s/ Samantha Lagocki, POA 2025-11-18