Most companies file shelf offerings done through an investment bank. They are required to file electronically and you'll see it at the SEC website.
Regdexs are the sale of securities that are EXEMPT from registration. Meaning the company finds a private investor and sell them a block of stock for cash. Stockholders usually find out after the fact if they can find the filing. (Not a good thing imo.)
The stocks are not allowed to be sold by that private investor until the company registers them. And supposedly that private investor shouldn't be shorting the company with those shares. lol.
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