Dec 15 (Reuters) - Moody's:
* Tryg's rating upgraded to 'A1' with Stable outlook
* Moody's Investors Service has upgraded Tryg Forsikring Insurance Financial Strength Rating to 'A1' from 'A2'
* Moody's has also upgraded Tryg Forsikring subordinated debt to A3 (HYB) from BAA1 (HYB)
* Rating outlook is stable Source text for Eikon: Further company coverage: (Gdynia Newsroom)