BTRS Holdings Inc., trading under the ticker SMMC, began its life as South Mountain Merger Corp., a blank-check company sponsored by South Mountain Capital that completed its initial public offering in 2019. The vehicle targeted the financial technology sector, ultimately announcing a business combination with Billtrust, a B2B accounts-receivable automation and payments company. The merger closed in January 2021, with the combined entity adopting the BTRS Holdings name and transitioning to the Nasdaq under the ticker BTRS. This 10-Q, filed in August 2019, reflects the SPAC's early post-IPO reporting period ahead of any announced transaction. Sign up at SpacDesk for the full filing history, deal timeline, and sponsor data on SMMC and hundreds of other SPACs.