Where do companies get the shares they give to employees? Are they usually newly issued shares (diluting other shareholders) or are they usually from a pool of shares owned by the company designated for this purpose? Relatedly, can shares bought via buy-backs be put into this employee stock pool or are they “destroyed”?
Generating new shares is simple especially for companies with dual stock structure.
RSUs are usually new shares, but since most big companies also do buybacks in net they are shrinking total share count