My client (company A) acquired a company (company B) in 2021. 2022 was the final year of B's 401(k). Since it was a SH plan with a generous plan design, ERISA counsel told us we could not merge the plan until end of year, 2022. Totally fine. Blackout started for participants on 12/28/2022 and the final asset transfer happened on 01/05/2023.
Are we able to file the 2022 5500 as the final 5500 and mark that all assets have been transferred?