As many as 12 companies that listed last month will see their one-month lock-in for anchor investors end this month. This could lead to heightened selling pressure in some stocks, especially those where the anchor contribution is high. Five of these 12 companies -- Rate Gain, Shriram Properties, Data Patterns, Supriya Lifesciences and CMS Info Systems – had allocated more than 10 per cent of outstanding shares to anchor investors. According to Edelweiss Alternative Research, 76 per cent of the 41 offerings from January to October last year experienced selling pressure on the expiry of anchor lock-in. As much as