Central Securities Corporation
A closed-end investment company that manages a concentrated portfolio of U.S. equities, seeking long-term growth of capital for its shareholders. Founded in New York City in October 1929 — mere weeks before the famous stock market crash — the company has operated continuously since and trades on the NYSE American under ticker CET. Among its long-running private holdings is Plymouth Rock Company, an auto insurer, a stake that analysts who follow the fund frequently point to.
Estimated from filings — the split-adjusted price range over the quarters each manager built the position. A range, not a fill price; 13F reports a quarter-end snapshot, not a trade date.