Issuance/Purchase of Common Stock. This is an important number to look at because it shows how a company is financing its business. Newer companies and rapidly growing companies often need to issue lots of new stock to fund their growth. New stock issuance typically dilutes existing shareholders' ownership--they own a smaller piece of the whole pie--but it also gives the company cash to expand.
Meanwhile, mature companies that have ample free cash flow often will buy back their own stock, which has the effect of increasing the value of existing shares--existing shareholders own a bigger piece of the pie. Share repurchases and dividend payments are typically the only two ways a company can enrich its shareholders with its cash flows.
Chapisha Maoni