RUANE, CUNNIFF & GOLDFARB INC is an institutional investment manager that files quarterly 13F reports with the SEC. As of Q4 2017, the fund manages $12M in reported equity holdings across 66 positions. The largest holdings are BRK.A (9.0%), AMZN (7.5%), GOOG (7.3%), GOOGL (7.1%), MA (5.0%). The portfolio is concentrated in Other (84.6%), Communication Services (7.7%), Consumer Cyclical (4.9%). Data sourced from SEC EDGAR 13F filings (CIK 728014).