Amgen Inc.
A biotechnology company that makes medicines for serious illnesses, including the bone-strengthening drug Prolia, the cholesterol-lowering injection Repatha, and the psoriasis treatment Otezla, sold to patients and doctors worldwide. It was founded in 1980 in Thousand Oaks, California, as Applied Molecular Genetics, a name later shortened to "Amgen." Its first CEO famously ran the company from a small trailer so scientists could use the office space, and early experiments included trying to extract oil from shale and accelerate chicken growth.
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.