Sotera Health Co
A provider of sterilization, lab testing, and advisory services that keep medical devices and pharmaceuticals safe for patients. Its three businesses — Sterigenics, Nordion, and Nelson Labs — sterilize products with gamma irradiation and ethylene oxide, supply the Cobalt-60 isotopes used in that process, and test products in the lab. The name comes from Soteria, the Greek goddess of safety, and the company was formed in 2019 by combining businesses with roots dating back decades.
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.