GS Acquisition Holdings II (NYSE:GSAH) secured shareholder approval of its combination with nuclear services and radiology firm Mirion in a special meeting held today.
GSAH announced yesterday that approximately 26.1% of its shares were redeemed in connection to the business combination. Stockholders have until 5:00 p.m. today to withdraw any elections to have their shares redeemed.
The company previously disclosed that the transaction is expected to generate approximately $554 million from its trust, $900 million from a PIPE, and $830 million from a senior secured term loan financing. A portion of the proceeds will be used to pay $1.3 billion to existing Mirion stockholders, to refinance approximately $909 million of existing Mirion third-party debt and to pay transaction expenses.
GSAH expects to close the business combination tomorrow, October 20. The combined company’s stock and warrants are expected to trade on the New York Stock Exchange under the new ticker symbols “MIR” and “MIRW”, respectively.
The parties initially announced the $2.6 billion deal on June 17. San Ramon, California-based Mirion provides radiation detection equipment and services to sectors ranging from nuclear power generation to defense and nuclear medicine.
ADVISORS
- Goldman Sachs & Co. LLC acted as lead placement agent and exclusive financial advisor to GSAH.
- Lazard Ltd. and HSBC acted as financial advisors to Charterhouse and Mirion.
- Goldman Sachs Lending Partners LLC and Citigroup Global Markets Inc. are providing committed debt financing in support of the transaction.
- Weil, Gotshal & Manges LLP acted as legal advisor to GSAH.
- Davis Polk & Wardwell LLP acted as legal advisor to Mirion
- Freshfields Bruckhaus Deringer LLP acted as legal advisor to Charterhouse.
- Sullivan & Cromwell LLP acted as legal advisor to Goldman Sachs & Co. LLC as lead placement agent.
- Milbank LLP acted as legal advisor to Goldman Sachs Lending Partners LLC and Citigroup Global Markets Inc.


Cohen Circle Acquisition Corp. II (NASDAQ:CCIIU) announced the pricing of its $220 million IPO and its units are expected to begin trading on the Nasdaq under the symbol “CCIIU”, Tuesday, July 1, 2025. The new SPAC plans to combine with a target company in the financial services technology (fintech) sector and fintech adjacent sectors that...
Indigo Acquisition Corp. (NASDAQ:INACU) announced the pricing of its $100 million IPO and its units are expected to begin trading on the Nasdaq under the symbol “INACU”, Tuesday, July 1, 2025. The new SPAC plans to combine with an established, profitable company whose growth potential can benefit from its team’s expertise. Indigo’s management team is...
After a quiet June, July is set to be active throughout the month with nine de-SPACs and sponsors coming unlocked from their trading restrictions. This timing is most fortuitous for insurance investor Abacus Life (NASDAQ:ABL) and East Resources, which took it public in 2023, as it is the best performer of this group of companies...
Pyrophyte II (NYSE:PAII.U) has filed for a $175 million SPAC to dig for a natural resources target while the team’s first deal remains pending. The new SPAC is offering investors 1/2 warrants in each unit and it will have 24 months to complete a business combination without asking shareholders for an extension. It is the...
At the SPAC of Dawn The last day of the quarter is to play host to a pair of shareholder votes and a possible pricing of Indigo‘s (NASDAQ:INACU) $100 million IPO. This week is also to play host to fresh jobs numbers just before the long July 4 weekend. Black Hawk (NASDAQ:BKHA) was also one...