Stryker Corp.’s (Nasdaq: SYK) $662 million purchase of medical device manufacturer Entellus, signals the medical device maker’s prowess in wielding M&A not just to grow existing businesses but also to enter new markets. Over the last three years, Stryker has spent nearly $6 billion to buy more than a dozen companies, enabling the company to outperform competitors in terms of growth, according to analysts. The company paid about $831 million on acquisitions in 2017 alone, according to regulatory filings.

Linamar completed its $937 million acquisition of MacDon on Feb. 1. Based in Winnipeg, Manitoba, MacDon makes agricultural equipment such as self-propelled windrowers. Linamar makes machine and other industrial equipment.

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Editor’s Note: To measure activity in the middle market, Mergers & Acquisitions looks at transactions that fulfill several requirements: Deals must have a value of roughly $1 billion or less, or an undisclosed value; and they must be completed (not just announced) within the timeframe designated. For this ranking, we included deals throughout the world. Excluded from our charts are: recapitalizations; self-tenders; exchange offers; repurchases; stake purchases; and transactions with undisclosed buyers or sellers. The data provider is Thomson Reuters, which updates its databases continuously. We use the data available at press time. For this article, data was collected on March 5, 2018.