I would strongly recommend investing heavily into the skip levels % chance and skipped amount. When you sell the company and it skips, you get that amount of shares for each level.

Example, I just sold at company level 83 for 220B shares, it skipped to level 122 and I got close to 9T shares.

So not only will you get your decos maxed out way faster, but you'll get the levels for repeat ascension quickly as well.