Acquisitions: When an acquiring company buys a portion of a target company.
Merger: When an acquiring company buys all of a target company; the acquirer remains and the acquired no longer exists as an independent corporate entity.
M&A transactions can be segmented by the manners in which the acquired is integrated with the acquirer.
Subsidiary Merger: the target becomes a subsidiary of the acquiring company. The acquiring company may use this form of integration in order to retain the brand recognition of the acquired entity.
Statutory Merger: the acquired no longer exists; it becomes part of the acquirer.
Consolidation: neither the acquired, nor the acquirer remain, rather both combine to form a new company.
Mergers can also be described by the way the business operations of the acquirer and the target relate to one another.
Horizontal Mergers: the combination of two companies in the same business line. For example, one beverage production company may decide to purchase another beverage production company.
Vertical Mergers: the purchase of a target company which performs an upstream or downstream function in the acquirer’s industry value chain.
Backward Integration: the acquirer purchases a company closer to the raw material extraction phase of the industry value chain. For example, a natural gas commercial distributer may decide to purchase a natural gas miner.
Forward Integration: the acquirer purchases a company closer to the market delivery phase of the industry value chain. For example, a gold miner may decide to purchase a chain of retail jewelry stores.
Conglomerate Merger: this is the case where an acquirer purchases a company in an unrelated line of business. For example, an airplane manufacturer may decide to purchase a chain of hospitals.
Ideally, mergers are executed with the expectation that the target will increase the equity value of the acquirer. Below some common merger motivations are described.