GS Acquisition Holdings Corp II (NYSE: GSAH-UN) operates as a blank check company, or special purpose acquisition company (SPAC), sponsored by an affiliate of The Goldman Sachs Group, Inc., whose sole purpose remains to effect a merger, capital stock exchange, asset acquisition, stock purchase, reorganization, or similar business combination with one or more unidentified businesses; it generates no significant operations or revenue prior to completing such a transaction. Formed in 2020 and headquartered in New York, the company focuses on target opportunities across various industries and geographies, with no current operating segments, products, or services beyond its trust account holding IPO proceeds invested in U.S. Treasury securities. In June 2021, it announced a definitive business combination with Mirion Technologies, Inc., a provider of radiation detection and measurement solutions, which was approved by stockholders in October 2021 and expected to result in Mirion listing publicly under new NYSE tickers (MIR, MIRW) following the name change and closing, raising approximately $554 million from trust proceeds, $900 million via PIPE financing, and $830 million in term loans to fund the $2.6 billion pro forma enterprise value deal; as of late 2025, GSAH-UN units continue trading without evidence of further merger completion or liquidation.