Basics of M&A

How do PE funds buy companies and make a profit?

When a PE fund offers to acquire your company, consider alongside price where its profit will come from: operational improvement, debt reduction increasing equity value, or a higher exit valuation. That plan also affects your work after sale.

PE means Private Equity. This article mainly concerns funds acquiring unlisted businesses and participating in management to realize returns. PE also includes minority investment; not every fund buys entire companies.

The fund, manager, and acquisition vehicle are different

The fund pools investor capital; the manager makes investment decisions and manages it. A separate shareholding vehicle may be created for an acquisition. The firm on a negotiator's business card may differ from the counterparty to your sale or reinvestment agreement.

The U.S. SEC's explanation of PE funds also covers fundraising, involvement with portfolio companies, long horizons, and illiquidity. Becoming a fund investor differs from reinvesting in the sold company or acquisition holding company.

Fund investment returns depend on dividends and sale proceeds relative to capital invested. The manager separately receives contractual management fees and carry. Combining portfolio, fund, and manager profits obscures who bears which costs.

From investment to realization

Investor contributions → Fund → Acquisition and management involvement

Business improvement → Dividends or sale to the next buyer → Investment realization

Check borrowing and management fees separately

Where debt funds acquisitions or other activities: Repayment and interest to lenders

Manager: Contractual management fees and carry

Gross proceeds do not necessarily equal investors' net receipts

Three drivers of equity value

Detailed valuation is discussed in Part 4, but here we use the simplified relationship: enterprise value minus net interest-bearing debt equals equity value. Here net debt means interest-bearing debt less cash and deposits. Actual contracts define debt, cash, and adjustments.

EBITDA is earnings before interest, taxes, depreciation, and amortization. The following table derives enterprise value from these earnings and a valuation multiple.

The following independent hypothetical illustrates the mechanism; multiples are not market benchmarks. Assume no additional equity, interim dividends, fees, taxes, or preferential distributions.

Item At acquisition At exit after improvement
EBITDA JPY80 million 100 million yen
Valuation multiple 5× 5×
enterprise value 400 million yen JPY500 million
Net interest-bearing debt JPY240 million JPY150 million
share value JPY160 million JPY350 million

Equity value increases by JPY190 million: JPY100 million from earnings-driven enterprise-value growth and JPY90 million from reduced net debt. Equity can grow without multiple expansion.

However, EBITDA is not freely available cash. Taxes, interest, working capital, and asset replacement need funding. Repaying debt with existing cash reduces both equally, leaving net debt unchanged. Distinguish generating cash and retaining it or repaying debt from merely moving existing cash.

The third driver is the valuation multiple. The same earnings can command different prices depending on sustainable growth, customer quality, interest rates, and buyer financing. Excessive reliance on a higher exit multiple can undermine returns even if operations meet the plan.

Debt magnifies losses too

Starting from the same acquisition, assume exit EBITDA of JPY60 million, a 4× multiple, and JPY200 million net debt.

Item At acquisition At exit after deterioration
EBITDA JPY80 million JPY60 million
Valuation multiple 5× 4×
enterprise value 400 million yen JPY240 million
Net interest-bearing debt JPY240 million JPY200 million
share value JPY160 million JPY40 million

Compared with JPY160 million equity value at acquisition, this is a JPY120 million, or 75%, decline. Debt enables a larger business purchase with less equity, but the shareholders' residual shrinks rapidly when enterprise value falls. Further deterioration may wipe it out.

Cutting necessary equipment replacement or staffing investment to accelerate repayment may improve near-term cash flow while weakening the business to be sold later. Sellers staying in management should review investment budgets and cash flow alongside earnings plans.

Sale proceeds alone do not reveal fund profits

In an independent hypothetical, a fund buys shares for JPY200 million and sells them to a corporate buyer years later for JPY300 million. The difference in share consideration alone is JPY100 million.

But if another JPY50 million was invested meanwhile, total investment is JPY250 million. Assess returns including dividends, transaction costs, and duration, then separately examine investor profits after manager fees.

Strategic sales, sales to another fund, and IPOs require different conditions. At acquisition, consider how to build a business the next buyer values and alternatives if the plan fails.

Reinvestment after sale means taking risk again

A proposal may reinvest part of sale proceeds in the sold company or acquisition holding company to participate in the next exit. Often called rollover, its implementation varies by transaction.

Treat this as a fresh investment decision, not a bonus increasing sale proceeds. After reserving living and tax funds, ask whether you would buy it if offered independently. The label “reinvestment” alone does not establish tax deferral.

If remaining in management, both remuneration and reinvested wealth depend on the same business. Having sold to realize assets, you may again concentrate wealth and work in one company.

Check which entity's shares, which class, and what entry price. Are they the same common shares as the fund's? Are there preferences, dilution risks, or interim transfer restrictions? A 10% stake does not unconditionally produce 10% of the next sale proceeds.

A fund's deadline is not your liquidity guarantee

A fund's term or exit plan does not guarantee purchase of your shares on a particular date at a particular price. A changed exit route or delayed sale affects your liquidity too.

Even with a contractual put, read exercise conditions, price calculation, payment deadline, and obligor. Does that entity have funds, guarantees, or collateral? A famous manager's name does not guarantee a separate entity's payments.

Detailed terms concerning shares on departure and sale consent or participation appear in Part 13's contract glossary. For post-sale transition and indemnities, Part 9 should also be reviewed.

Assess reinvestment under three scenarios: the plan succeeds, profits stagnate, and exit is delayed. Calculate equity value, actual distributions, and liquidity timing separately. Understand the buyer's success plan and whether you can accept your burden if it fails.

This manuscript is a general explanation based on laws and regulations as of September 9, 2026. Please obtain advice on your individual circumstances before taking action.

We take care in preparing this information. If you notice an error, please let us know through our contact page.

If You Would Like Advice on Your Own Circumstances

See our support and consultation process for company sales, acquisitions, and business succession.

M&A Intermediation Services

See services, fees, and how to apply.

Back to the list