Master Fund Ltd Ramius is 10% at S1 CORP /DE/ (SONE).
CIK 0001275886
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.