(TheStreet.com's Ben Holmes, who heads TSC's ipoPros.com subsidiary, keeps a close eye on lockup expirations every week. For more on lockups and why they matter, check out Holmes' primer on the subject. The full current lockup list is published separately. For information on IPO pricings, filings and aftermarket activity, plus a calendar of upcoming IPOs, check out TheStreet.com's IPO data section. )