Full Definition
The Definitive Purchase Agreement (DPA), also called a Purchase Agreement, Stock Purchase Agreement (SPA), or Merger Agreement, is the binding legal contract that documents all terms and conditions of an M&A transaction. Unlike a Letter of Intent (non-binding term sheet), the Definitive Purchase Agreement is a binding obligation: once signed, both parties are legally committed to complete the transaction on the agreed terms unless specific closing conditions are not met. The DPA is the culmination of the M&A process—negotiated by legal counsel over weeks or months, it reflects the commercial deal agreed in the LOI and incorporates the specific legal protections and risk allocations negotiated through due diligence. A Definitive Purchase Agreement covers the full range of transaction terms: purchase price and payment mechanics (amount, form of consideration, payment timing, escrow provisions), purchase price adjustments (working capital, debt, and cash adjustments calculated at closing), representations and warranties (comprehensive factual assertions about the company's status), covenants (obligations of each party between signing and closing, and post-closing obligations), closing conditions (what must be true for either party to be obligated to close—regulatory approvals, material accuracy of representations, no MAC), indemnification provisions (what losses each party will compensate the other for post-closing), and termination rights (what circumstances allow either party to abandon the transaction before closing). Negotiating the Definitive Purchase Agreement typically takes 4-8 weeks for a mid-market transaction, with legal fees of $500,000-$2,000,000 on each side for complex transactions. The most heavily negotiated provisions are: the scope of representations and warranties (how comprehensive and how qualified), the indemnification structure (baskets, caps, survival periods), the working capital adjustment methodology (which items are included, what the target is, and the adjustment process), and the conditions to closing (how many conditions there are and how objectively they can be measured). The quality and specificity of these provisions determines how much protection the buyer actually has and how much exposure the seller retains after closing.
FAQs
What is the difference between a Letter of Intent and a Definitive Purchase Agreement?
A Letter of Intent (LOI) is typically a non-binding expression of the key commercial terms of a proposed transaction—purchase price, structure, key conditions, exclusivity period, and expected timeline. It is signed before due diligence and provides a framework for negotiations but creates limited legal obligations (usually only the exclusivity and confidentiality provisions are binding). The Definitive Purchase Agreement is the binding legal contract signed after due diligence is complete—it documents the final negotiated terms with full legal enforceability. The LOI is the handshake on commercial terms; the DPA is the binding legal commitment to transact on those terms.
What is the typical timeline from signing the DPA to closing?
Most M&A transactions close 30-90 days after signing the Definitive Purchase Agreement, depending on the complexity of closing conditions. Transactions requiring antitrust regulatory approval (HSR Act filings in the U.S., EU merger notifications) may require 3-6 months or longer if regulators request additional information. Transactions requiring foreign investment approvals (CFIUS in the U.S. for national security review) may extend timelines further. Simple private company transactions with no regulatory requirements can sometimes close simultaneously with signing (sign and close on the same day) when due diligence is completed and all conditions are met at the time of signing.
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