Sotera Health Co (SHC) stock experienced a significant rise after the company announced a secondary offering of 25 million shares. The offering, undertaken by affiliates of Warburg Pincus and GTCR, will result in these entities relinquishing their majority stake in Sotera Health, leading to a shift in certain rights they previously held. This move signifies a change in the company’s ownership structure and could potentially impact its future direction.