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.
| Holder | Schedule | % of class | Shares | Filed |
|---|---|---|---|---|
| Sessa Capital IM, L.P. | 13G/APassive | 9.5% | 27.05M | Aug 14, 2026 |
| John Petry | 13G/APassive | 9.5% | 27.05M | Aug 14, 2026 |
| Sculptor Capital LP | 13G/APassive | 8.41% | 24.00M | Aug 14, 2026 |
| Sculptor Capital II LP | 13G/APassive | 8.41% | 24.00M | Aug 14, 2026 |
| Sculptor Capital Holding Corp | 13G/APassive | 8.41% | 24.00M | Aug 14, 2026 |
| Sculptor Capital Holding II LLC | 13G/APassive | 8.41% | 24.00M | Aug 14, 2026 |
| Sculptor Capital Management, Inc. | 13G/APassive | 8.41% | 24.00M | Aug 14, 2026 |
| Sculptor Master Fund, Ltd. | 13G/APassive | 8.41% | 24.00M | Aug 14, 2026 |
| BlackRock, Inc. | 13G/APassive | 8.4% | 23.85M | Jul 30, 2026 |
| Sachem Head Capital Management LP | 13GPassive | 5.46% | 15.56M | May 15, 2026 |