X0508 4 2024-01-18 0001101239 EQUINIX INC EQIX 0001502558 Meyers Charles J ONE LAGOON DRIVE 4TH FLOOR REDWOOD CITY CA 94065 1 CEO and President 1 Common Stock 2024-01-18 4 S 0 100 788.0603 D 16260 D Common Stock 2024-01-18 4 S 0 806 789.8757 D 15454 D Common Stock 2024-01-18 4 S 0 380 791.1061 D 15074 D Common Stock 2024-01-18 4 S 0 1220 792.224 D 13854 D Common Stock 2024-01-18 4 S 0 1804 793.413 D 12050 D Common Stock 2024-01-18 4 S 0 1707 794.204 D 10343 D Common Stock 2024-01-18 4 S 0 1798 795.259 D 8545 D Common Stock 2024-01-18 4 S 0 303 796.2046 D 8242 D Common Stock 2024-01-18 4 S 0 100 799.3305 D 8142 D Common Stock 2024-01-18 4 S 0 500 801.508 D 7642 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 $788.00 to $788.30, 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 11 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 $789.40 to $790.22 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $790.56 to $791.56 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $791.57 to $792.57 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $792.75 to $793.70 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $793.78 to $794.74 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $794.85 to $795.65 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $796.00 to $796.31 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $799.33 to $799.34 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $801.12 to $802.09 inclusive. /s/ Samantha Lagocki, POA 2024-01-19