GARDNER RUSSO & QUINN LLC is an institutional investment manager that files quarterly 13F reports with the SEC. As of Q4 2025, the fund manages $9.3B in reported equity holdings across 87 positions. The largest holdings are GOOGL (13.3%), BRK.A (12.1%), MA (9.8%), CFRZ.XC (8.2%), PFE (8.1%). The portfolio is concentrated in Other (84.9%), Consumer Defensive (8.4%), Industrials (4.7%). Data sourced from SEC EDGAR 13F filings (CIK 860643).