X0306 4 2021-05-13 0001101239 EQUINIX INC EQIX 0001197203 TAYLOR KEITH D C/O EQUINIX ONE LAGOON DRIVE REDWOOD CITY CA 94065 1 Chief Financial Officer Common Stock 2021-05-13 4 S 0 100 703.35 D 22083 D Common Stock 2021-05-13 4 S 0 228 707.0896 D 21855 D Common Stock 2021-05-13 4 S 0 200 709.635 D 21655 D Common Stock 2021-05-13 4 S 0 100 713.78 D 21555 D Common Stock 2021-05-13 4 S 0 185 715.4749 D 21370 D Common Stock 2021-05-13 4 S 0 87 716.3624 D 21283 D Common Stock 2021-05-13 4 S 0 100 718.03 D 21183 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 $706.73 to $707.55, 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 5 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 $709.59 to $709.68 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $715.02 to $716.01 inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $716.23 to $716.39 inclusive. /s/ Samantha Lagocki, POA 2021-05-14