NEW YORK–(BUSINESS WIRE)–Fitch Ratings has taken the following rating actions: SLM Student Loan Trust 2007-1 (SLM 2007-1): –Class A-5 affirmed at ‘AAAsf’; removed from Rating Watch Negative and assigned Outlook Stable; –Class A-6 downgraded from ‘AAAsf’ to ‘AAsf’; removed from Rating Watch Negative and assigned Outlook Stable; –Class B affirmed at ‘Asf’; Outlook Stable. SLM Student Loan Trust 2007-4 (SLM 2007-4): –Class A-4A affirmed at ‘AAAsf’; Outlook Stable; –Class A-4B affirmed at ‘A
