This is a bad way to go about it. Every time you want to move your model AT ALL you have to change every triangle.
You should have one transform per mesh. I assume you have a model class, so what you'll want to do is give each model class either 3 vectors for scale, rotation, and translation or a single matrix. When you want to move the model you simply have to change the vectors or matrix accordingly.
Now, right before you draw you should upload your transform to your vertex shader. Now you can use it as needed uniformly across all your vertices.
This is a pretty standard way of dealing with this. A vertex should only describe it's local coordinates. That is, its position relative to other vertices in the model. You then construct your model matrix per model object, and your view matrix per viewport.
Your scene should follow this structure:
Per Vertex Per Model Per Viewport Everything is now pixels
local coordindates -> model coordinates -> model view coordinates -> screen coordinates.
Hope this helps. Just read up on your 3D theory and you'll get it in no time!
