They didn't misspell BMSN in the report. They are referring to how the company came into existence. BMSN came to be through a reverse merger acquisition. BMSG was one of the other tickers that was associated with BMSN at some point during this process. If you search back long enough, you can find several tickers that used to belong to the company.

BMSG, BMXP, BXPH, THII, & FESI are among several tickers I discovered to be strongly associated with the creation/merger of BMSN into what it is today.