Hey John, in this case stock splits and reverse splits wouldn't impact the supply because the market value of the company available to the public stays the same, it is just represented differently, e.x. 100 shares at $5 each or 10 shares at $50 each. Compared to when corporations buyback shares they are decreasing the amount available to the general public.

And I believe it's the opposite; regular splits are bullish while reverse splits are usually a bad sign