The M&A Process, Start to Finish

Finance 101's M&A chapters covered why deals happen and how to read one after the fact. This track goes further: how an actual deal process runs, in the sequence a real M&A banker experiences it, on the sell-side (representing a company being sold) specifically, the most process-heavy seat in the deal.

1. Mandate and preparation

The bank is formally engaged (an "engagement letter" sets the fee, typically a retainer plus a success fee, see the worked example below). The team builds two core documents before approaching anyone: a teaser (a one-to-two-page anonymous summary, enough to gauge interest without revealing the company's identity) and a CIM (Confidential Information Memorandum, the full, detailed marketing document: business overview, financials, market position, management team).

2. Buyer outreach and NDAs

The bank contacts a curated list of potential buyers: strategic acquirers (competitors, adjacent companies) and financial buyers (private equity). A broad auction contacts dozens of parties to maximize competitive tension and price; a targeted/negotiated process approaches a handful of the most logical buyers, trading some price tension for speed and confidentiality. Interested parties sign a non-disclosure agreement (NDA) before receiving the CIM.

3. First-round bids (indications of interest)

Interested buyers submit a non-binding indication of interest (IOI), a preliminary valuation range and deal structure, based only on the CIM. The seller and its bank use these to narrow the field to a smaller group invited into the next round.

4. Management presentations and due diligence

Surviving buyers meet the target's management team directly and get access to a data room (historically a physical room, now almost always virtual) containing detailed financial, legal, operational, and commercial information. This is where buyers do real diligence, not just react to marketing materials.

5. Final-round bids and negotiation

Buyers submit a binding (or near-binding) final bid, typically alongside a marked-up draft of the purchase agreement, showing exactly what terms they are proposing beyond price. The seller (with its bank) negotiates the best combination of price and terms. A lower headline price with cleaner, more certain terms can genuinely beat a higher price with more conditionality (financing-out clauses, longer regulatory timelines), exactly the deal-protection concepts from the Finance 101 deep dive on break fees and MAC clauses.

6. Signing and closing

A winning bidder is selected, the definitive agreement is signed, and the deal is publicly announced. This is the moment Finance 101's "Reading a Real Deal" chapter picks up. Closing (the deal actually completing) follows, often months later, once regulatory approvals and other conditions are satisfied.

Worked example, the fee structure: a bank's engagement letter specifies a $250,000 annual retainer plus a 1.25% success fee on a deal over $500M. The deal ultimately closes at $800M. Success fee = 1.25% × $800M = $10M, against which the retainers paid during the process are often credited. The retainer compensates the bank for work regardless of outcome; the success fee, by far the larger number, is what actually motivates the bank to get the deal closed at the best price.