Sunil Singhania's Abakkus Asset Manager, Vikas Khemani's Carnelian, and IIFL Capital are among five investors that collectively acquired a 2.95% stake in SFC Environmental Technologies from the promoters ahead of the company’s IPO next week. The Navi Mumbai-based wastewater treatment solutions provider will open its maiden public issue on October 27 and close on October 29. The company aims to raise Rs 667.5 crore via initial public offering (IPO) at the upper end price band of Rs 313-330 per share.