Can you move during your reaction in a ready action?


So let’s say that the party or the baddies want to dive a target all at once, but they are far apart on the turn order. Can the divers all do a ready action and then all jump in at once?

Example:

Turn order is:

  1. PC1
  2. PC2
  3. NPC1
  4. PC3
  5. PC4
  6. NPC2

Can NPC1 do a ready action of “when NPC2 moves in to attack a PC, I move in to attack the same PC” and then move and attack as the reaction?