What is Material Adverse Change (MAC)?

The Short Answer

A Material Adverse Change (MAC) clause lets a buyer back out of a deal if something big and bad happens to the target business before closing.

Material Adverse Change (MAC) explained simply

A Material Adverse Change (MAC) clause is a standard part of many business sale agreements. It protects the buyer. If something really bad happens to the business after the deal is signed but before it officially closes, the buyer can walk away. This "bad thing" has to be significant. It can't be a small dip in sales or a minor issue. It has to be something that seriously hurts the business's value or future.

Real-World Example

The Unexpected Lawsuit

Imagine a buyer signs a deal to buy a software company. Two weeks later, before the deal closes, a major competitor files a massive lawsuit against the software company for patent infringement. This lawsuit could cost the software company millions and ruin its reputation. Because of the MAC clause, the buyer can now back out of the deal. The lawsuit is a "material adverse change" that significantly harms the company.

Why this matters

MAC clauses are important because they protect buyers from unforeseen risks. They ensure that the business they agreed to buy is still in roughly the same condition when they actually take it over. For sellers, it means they need to be transparent about any potential issues that could trigger a MAC clause.

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Luis MerchanBusiness

MAC clauses are often heavily negotiated. Buyers want them broad, sellers want them narrow. The key is defining what "material" means in your specific deal.

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