The team has to have made some of these (acquisitions), or they wouldn't be bragging about their prowess in doing deals. Some of the deals may have been partial acquisitions, though (without the qualifier, "acquisition" is usually understood to mean a full takeover), and some may have been disposals, too -- all of which would be 'opérations capitalistiques'.

Or, you could just say "M&A deals" and let all the deals be swept up in that broad (and somewhat vaguer) category.