The database Nexis Uni (formerly LexisNexis Academic) has M&A info. from Mergerstat - and - SDC
To search in SDC: select "a publication", then in the box to the right - "Find Publication", start typing "SDC" - the type-ahead shows - select that database, then select "Search" blue box
Then enter SDC in the search box:
Similarly, select "a publication" -- then, in the box to the right - "Find Publication", start typing "Mergerstat"...the type-ahead shows - select that database; then select "Search" blue box
Also, search in article and newspaper databases with key phrases such as:
(merger* or acquisition* or M&A) and [type name of company or other search term - broad industry category; geography]
The periodical Mergers & Acquisitions has key M&A deals and news.
While articles about deals are in these subscription databases: Business Source Complete; ABI/Inform; Factiva ; LexisNexis Academic - the charts about deals are not in a database. Print issues until 2015 are offsite at the Library Services Center. Factiva also has Mergers & Acquisitions Online, for website content of this journal; LexisNexis Academic has some tables; ProQuest Statistical Insight also has some tables - yet a significant delay.