Closing an M&A Deal: The Documents Behind the Signature

Closing is often presented as the decisive moment of an M&A transaction: the agreements are signed, the money moves, the shares change hands and the deal is complete.

In practice, a sophisticated closing is less a single signature than a carefully coordinated sequence of legal, corporate and financial actions that must occur in the correct order.

By this stage, the commercial terms should already have been negotiated, due diligence completed, the SPA signed and the relevant conditions precedent satisfied or waived. Yet ownership will not change merely because the parties have reached the end of the timetable.

The transaction still has to be implemented.

Share transfer instruments may need to be executed. Corporate approvals must be in place. Existing security may need to be released. Directors may resign or be appointed. Funds have to move between multiple accounts. Registers may need to be updated. Certificates, legal opinions and closing confirmations may need to be delivered.

Each individual item may appear administrative. Collectively, however, they determine whether the transaction actually closes as intended.

The purpose of closing mechanics is therefore simple: to convert contractual commitment into legal ownership and economic control without leaving gaps between the two.

Closing is an execution process, not a meeting

Historically, one can imagine lawyers, clients and bankers gathering around a conference table exchanging physical documents and signatures.

Modern closings are often very different.

Documents may be signed electronically in advance, funds transferred through several banks and lawyers coordinating the process across jurisdictions and time zones. Some closing documents may already be held in escrow pending confirmation that all conditions have been satisfied.

The physical "closing meeting" may not exist at all.

But the underlying logic remains the same.

The parties need to know precisely what must be delivered, by whom, in what form and in what sequence before completion can be declared.

This is why complex transactions usually operate through a closing checklist or completion agenda.

Far from being a simple administrative list, this document becomes one of the most important execution tools in the transaction.

It identifies every outstanding document, action, responsible party and completion status.

A well-managed closing should contain very few surprises because the checklist has already exposed them.

The closing checklist is the transaction’s control panel

By the time closing approaches, the documentation can be extensive.

The closing checklist brings the various workstreams together.

It may include the SPA and ancillary agreements, corporate approvals, share transfer documents, regulatory clearances, third-party consents, debt repayment documentation, security releases, management arrangements, escrow documentation and funds-flow mechanics.

Each item should normally show whether it is agreed, signed, outstanding or conditional upon another closing step.

Consider a transaction involving a target with existing bank financing.

The buyer cannot simply pay the seller and assume that the existing lender’s security disappears automatically. The debt may need to be repaid from the closing proceeds, after which the lender releases its security, allowing the buyer to acquire the target without the previous financing encumbrances.

Those actions need to be coordinated.

If the repayment occurs too early and the acquisition then fails to close, the target may suddenly have lost its financing. If the buyer pays the seller before the release mechanics are sufficiently secure, it may acquire shares in a company still subject to unwanted security arrangements.

The closing checklist therefore does more than confirm that documents exist.

It helps establish the order in which legal and financial risk transfers during completion.

Corporate approvals: someone must have authority to complete the deal

Before the transaction can close, the relevant companies need to have properly authorised the required actions.

Depending on the corporate structure and applicable law, this may involve board resolutions, shareholder resolutions or approvals from other corporate bodies.

The buyer may need to approve the acquisition, the execution of ancillary documentation and the financing arrangements.

The seller may need to approve the sale, related distributions, repayment of shareholder loans or other steps associated with the transaction.

The target itself may need to approve matters that become effective at closing, such as director appointments, banking changes or entry into new agreements.

These approvals are important for a simple reason: a complex transaction should not depend on someone discovering after the event that the person who executed a document lacked authority to do so.

Corporate approvals also create a formal record of the transaction and the decisions surrounding it.

In larger groups, this can require careful coordination because multiple entities may participate in different parts of the closing structure.

Transferring the shares

At the centre of a share acquisition is the legal transfer of the target’s shares.

The precise mechanics vary between jurisdictions, but may involve executed share transfer forms, endorsements, notarial formalities, updates to shareholder registers, cancellation and issuance of share certificates or filings with corporate registries.

The SPA creates the contractual obligation to transfer the shares.

The applicable corporate law determines how that transfer is legally perfected.

This distinction is important.

A buyer may have paid the purchase price and signed the SPA, but if the required corporate transfer formalities have not been completed, the legal status of ownership may remain unclear.

Closing counsel therefore needs to understand precisely which action makes the buyer the shareholder under the applicable law.

This is particularly important in cross-border M&A, where assumptions based on one legal system may not apply in another.

Resignations, appointments and control of the board

Ownership and corporate control often change together at closing.

Seller-appointed directors may resign. Buyer nominees may be appointed. Corporate secretaries or authorised signatories may change.

The timing matters.

The seller will generally not want its directors resigning before it knows the purchase price is being paid. The buyer will not want to release the funds and then discover that the agreed governance changes have not occurred.

Resignation letters, appointment resolutions and board documentation are therefore often held together as part of the completion process and released once the agreed closing sequence is satisfied.

This illustrates a broader principle: closing should minimise the period in which one side has performed while the other has not.

Perfect simultaneity is not always technically possible, but the transaction documents and closing process should bring the relevant steps as close together as practicable.

Existing debt and security can dominate closing mechanics

A target may enter the transaction with bank debt, shareholder loans, guarantees or security over its assets and shares.

The buyer may require some or all of these arrangements to be discharged at closing.

This introduces a separate workstream involving the existing lenders.

The parties may need a payoff letter setting out the exact amount required to repay the facility as of the closing date, together with confirmation of how and when guarantees and security will be released.

The funds flow may then direct part of the buyer’s purchase price not to the seller, but directly to the target’s lenders.

For example, a transaction with an equity value of EUR 80 million may involve the buyer transferring EUR 15 million to repay existing debt, EUR 5 million into escrow and only the remaining amount to the sellers.

The purchase price is therefore not always represented by a single wire transfer.

The financial settlement can involve several simultaneous payments, each connected to a different contractual requirement.

This is why the legal team and the financial advisers need to work from the same closing numbers.

The funds flow: where exactly does the money go?

The funds-flow memorandum or closing funds flow is one of the most practical documents in an M&A closing.

It maps every payment that needs to occur.

The document may identify the gross purchase price, debt repayments, transaction expenses, escrow deposits, shareholder loans, withholding amounts and final proceeds payable to individual sellers.

Bank account details, currencies and payment references may also be included.

Its importance should not be underestimated.

A transaction can have perfectly drafted legal documentation and still encounter significant problems if funds are transferred incorrectly.

Account details should be verified through robust procedures. Changes to payment instructions close to closing should be treated with particular caution, given the well-known risk of transaction-related payment fraud.

From an advisory perspective, the funds flow also provides a final reconciliation between the headline economics of the deal and the cash that each party actually receives.

A EUR 100 million transaction may result in substantially less than EUR 100 million reaching the seller’s account on closing day once debt, escrow, expenses and other adjustments are taken into account.

The closing process is therefore where the purchase price mechanism becomes cash.

Closing certificates and bring-down confirmations

Where there has been a gap between signing and closing, the parties may need to confirm that certain contractual conditions remain satisfied.

A seller may deliver a closing certificate confirming that specified representations and warranties remain accurate subject to the standard agreed in the SPA and that relevant pre-closing covenants have been complied with.

Other certificates may confirm satisfaction of particular conditions or completion of corporate actions.

These documents create a formal bridge between what was agreed at signing and the state of affairs at closing.

They are particularly important where the SPA makes completion conditional upon certain facts continuing to be true.

A certificate should not be treated as a routine signature exercise.

If management knows that a relevant statement can no longer properly be confirmed, that issue needs to be raised before closing rather than buried inside a completion document.

Third-party consents and regulatory approvals must be evidenced

If completion depended on obtaining a material contractual consent or regulatory clearance, the closing file should include appropriate evidence that the condition has been satisfied.

This may be an approval decision from a competition authority, an FDI clearance, a consent letter from a contractual counterparty or another formal document.

The issue matters not simply because the SPA says so.

A buyer needs confidence that it is acquiring a business capable of continuing to operate legally and contractually after completion.

If a critical licence required approval for the change of control, that approval should not remain an assumption.

It should be part of the closing evidence.

The same principle applies to conditions that have been waived.

If a party is closing despite an unsatisfied condition, the waiver should be documented clearly so that there is no later ambiguity about whether the transaction was completed intentionally with that risk outstanding.

Ancillary agreements also need to become effective

The previous article discussed the importance of ancillary agreements such as TSAs, IP licences, supply arrangements, employment agreements and escrow documentation.

Closing is when many of these documents become effective.

The timing should be coordinated with the transfer of ownership.

If the acquired company requires access to the seller’s IT systems immediately after completion, the TSA needs to be operational from the moment the group relationship ends.

If management is remaining with the business under new employment arrangements, those agreements should take effect at the appropriate time.

If part of the purchase price is being placed in escrow, the escrow account and agent arrangements need to be ready to receive the funds.

The documents surrounding the SPA therefore converge at closing.

This is the point at which the legal architecture stops being a set of negotiated agreements and becomes an operating framework.

Signature, delivery and release are different concepts

One subtle but important aspect of closing mechanics is that a document can be signed before it becomes effective.

Parties may execute signature pages in advance and authorise lawyers to hold them pending closing.

The relevant documents are then released only once the parties confirm that the agreed completion conditions have been met.

This can be particularly useful in transactions involving many shareholders or parties located in different jurisdictions.

It avoids the need to collect signatures at the precise moment funds move.

But the authority to hold and release signatures should be clear.

A document that has been signed but not validly delivered may have a different legal status from one that has been fully released into the transaction.

Closing counsel therefore needs to manage not only signatures, but also the conditions on which those signatures become operative.

Legal opinions may provide additional closing comfort

Certain transactions, particularly cross-border or financing-heavy deals, may require legal opinions.

These may address matters such as the valid existence of a company, authority to enter into transaction documents, enforceability of specified agreements or the validity of security.

Legal opinions should not be understood as broad guarantees that the transaction has no legal risk.

They address defined legal questions based on stated assumptions and qualifications.

Their function is to provide a formal level of legal comfort on matters that another party, often a lender, cannot easily verify itself.

Whether an opinion is necessary depends on transaction practice, jurisdiction, financing requirements and the nature of the documents involved.

In a simple domestic acquisition it may be unnecessary. In a multi-jurisdictional financing structure, several opinions may form part of the completion package.

Closing should be rehearsed before closing day

One of the most valuable execution practices is also one of the simplest: do not wait until closing day to discover how closing works.

Several days before completion, the parties should ideally understand the final sequence of events.

Which conditions remain outstanding? Which documents are still unsigned? Which signatures are being held in escrow? Which bank accounts will receive funds? At what point are the shares deemed transferred? When are board changes effective? Who gives the final instruction that the closing package may be released?

Complex deals sometimes use a formal closing call during which lawyers confirm each step sequentially.

Other transactions close largely through coordinated email confirmations.

The method is less important than having a clear process.

A closing should feel procedural rather than improvisational.

The more important the transaction, the less acceptable it is for execution to depend on assumptions, incomplete documents or last-minute interpretation.

The closing bible: preserving the transaction record

After completion, the legal work is not necessarily finished.

The final signed transaction documents are usually assembled into a closing set or closing bible, historically a physical volume and now generally an electronic collection.

This may include the SPA, disclosure documentation, ancillary agreements, corporate approvals, consents, certificates, financing documents and other completion materials.

This is not simply archival housekeeping.

Years later, the parties may need to confirm what was signed, which version of a document was final, what disclosures were made or what corporate authority supported a particular action.

The closing set creates an authoritative transaction record.

Incomplete closing records can become particularly problematic when the people who originally worked on the deal have left the organisation.

Good post-closing administration therefore begins with preserving the legal evidence of what occurred.

The advisory perspective: execution certainty has value

Closing mechanics may appear primarily legal, but they have direct commercial significance.

The longer and more complicated the list of outstanding actions, the greater the execution risk.

A seller assessing competing bidders should therefore care about more than price.

One buyer may require complex acquisition financing, multiple internal approvals and extensive third-party consents. Another may have committed funds and a relatively simple path to completion.

The difference affects the probability that the seller actually receives the purchase price.

The same is true for buyers. An acquisition requiring the separation of dozens of contracts, the refinancing of significant debt and regulatory clearances across several jurisdictions may require more execution resources and carry more risk than the headline valuation suggests.

This is why transaction advisers should focus on closing readiness well before the intended completion date.

Execution risk should be identified and reduced throughout the transaction, not merely managed in the final forty-eight hours.

When the legal deal becomes the completed deal

Signing establishes the contractual commitment.

Closing is the point at which that commitment is performed.

The shares transfer. The consideration is paid. Existing security may be released. New governance takes effect. Ancillary arrangements become operative. The buyer acquires legal and economic control of the target.

None of those events should be left to implication.

They are implemented through a coordinated package of documents, payments, approvals and confirmations designed to ensure that each side receives what it negotiated.

That is why closing an M&A deal is more than collecting signatures at the end of a long process.

It is the moment when months of negotiation, diligence, structuring and documentation have to work together simultaneously.

A transaction may be negotiated in the SPA, but it is completed through the precision of the closing process.