What is a typical sell-side M&A process?

A sell-side M&A process involves preparation (teaser, CIM, valuation), a first round (teasers, NDAs, IOIs), a second round (data room, management presentations, LOIs), negotiation and signing of a definitive agreement, and closing after regulatory approvals.

Intuition

The process is structured as a funnel to maximize competitive tension while maintaining confidentiality. Each round filters buyers by seriousness and price, forcing them to commit more resources and offer higher valuations to stay in the process. The banker's core job is to create a controlled auction dynamic that drives the best outcome for the seller.

Watch

Interviewers may ask how a sell-side process differs from a buy-side process. Key difference: on the sell-side, the banker runs the auction and controls information flow; on the buy-side, the banker helps one client evaluate a target, build models, and structure a competitive bid. Also watch for the distinction between IOIs (non-binding, Round 1) and LOIs (submitted in Round 2 and generally non-binding overall, though certain provisions such as exclusivity and confidentiality may be binding) candidates frequently confuse these.

Deep Dive

Describe the end-to-end process an investment bank runs when representing a seller in an M&A transaction.

Phase 1 Preparation (Weeks 14)

  1. Engage sell-side advisor; sign engagement letter
  2. Conduct due diligence on the seller's own business (vendor/sell-side DD)
  3. Build financial model and preliminary valuation (DCF, comps, precedent transactions)
  4. Prepare marketing materials:
    • Teaser (anonymous 1-pager to gauge interest)
    • Confidential Information Memorandum (CIM) (detailed 3050 page book)
  5. Compile buyer universe list strategic buyers + financial sponsors, tiered by fit

Phase 2 First Round (Weeks 510) 6. Send teasers to broad buyer list 7. Interested parties sign NDAs (non-disclosure agreements) 8. Distribute CIM to NDA-signed parties 9. Buyers submit Indications of Interest (IOIs) non-binding, include preliminary valuation range, financing plan, high-level structure 10. Seller and advisor evaluate IOIs, narrow to shortlist (typically 38 buyers)

Phase 3 Second Round (Weeks 1118) 11. Open virtual data room (VDR) to shortlisted buyers with detailed financial, legal, commercial data 12. Host management presentations seller's management meets each shortlisted buyer 13. Buyers conduct detailed due diligence (financial, legal, tax, commercial, environmental) 14. Distribute draft merger/purchase agreement to buyers 15. Buyers submit Letters of Intent (LOIs) or final bids typically non-binding overall, but include definitive price, markup of purchase agreement, financing approach or commitments, timeline to close, and key conditions

Phase 4 Negotiation & Signing (Weeks 1922) 16. Select preferred bidder (may run parallel negotiations with 12 runners-up for leverage) 17. Negotiate final purchase agreement terms reps & warranties, indemnities, escrow/holdback, earnouts, conditions to close 18. Buyer delivers committed financing letters (if debt-funded) 19. Sign definitive agreement; announce transaction publicly

Phase 5 Closing (Weeks 2330+) 20. Obtain regulatory approvals (antitrust/HSR, sector-specific) 21. Obtain shareholder approval if required (public target) 22. Satisfy all closing conditions 23. Close funds transfer, ownership changes hands 24. Banker collects success fee (typically 12% of enterprise value; fee scales inversely with deal size)

Key Deliverables Summary:

PhaseKey Output
PreparationTeaser, CIM, buyer list, valuation
First RoundIOIs received and evaluated
Second RoundManagement presentations, LOIs/final bids
NegotiationSigned definitive agreement
ClosingRegulatory clearance, funds transfer

Total timeline is illustrative: a typical auction runs 49 months from engagement to close, depending on deal complexity and regulatory hurdles. Targeted (non-auction) processes with a single buyer can compress significantly but sacrifice competitive tension on price.