Cohu Inc
A maker of machines and software that test and inspect semiconductor chips before they ship, serving computer, automotive, and consumer-electronics companies. It began in 1947 as Kalbfell Laboratories, founded by Dr. David Kalbfell, and took the Cohu name in 1972 after a name used for its electronics division — a nod to Lamott T. Cohu, whose investment group bought the firm in the 1950s. The company once made television cameras and metal detectors before focusing solely on chip testing.
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.