How Startup Exits Work: IPO, M&A, and Secondary Sales Explained

Every venture investment ends with an exit — or a write-off. The exit is where paper returns become real money. Where carry gets calculated, where founders get liquid, where LPs see distributions. Despite its importance, most people in the startup ecosystem have a fuzzy understanding of how exits actually work.

Let's fix that. We'll cover every major exit path, who gets paid, and — critically — how liquidation preferences change the payout math at different exit prices.

IPO: The Dream Exit

An IPO (Initial Public Offering) is when a private company sells shares to public investors for the first time. It's the most celebrated exit type but also the rarest. Fewer than 1% of venture-backed companies go public. The ones that do tend to be the breakout successes — the companies that make the fund.

The IPO Process

Preparation starts 18-24 months before the listing date. The company hires investment banks (underwriters), audits its financials, strengthens its board with independent directors, and builds out its finance and legal teams. Compliance costs run $2-5M+ annually for a public company.

The S-1 filing is the company's registration statement with the SEC. It discloses everything: financials, risk factors, executive compensation, shareholder structure, business strategy. This is a public document — competitors, journalists, and everyone else will read it. The drafting process alone takes 3-6 months.

The roadshow follows — management spends 1-2 weeks meeting institutional investors, pitching the company's story, and gauging demand. Based on demand, the underwriters and company set the IPO price. On listing day, shares begin trading publicly.

Lockup Periods

After the IPO, insiders (founders, employees, VCs) typically can't sell their shares for 180 days — the standard lockup period. This prevents a flood of insider selling from crashing the stock price. The lockup expiration date is a major event — the stock often drops as insiders begin selling. Some companies stagger lockup expirations to reduce the impact.

When does an IPO make sense? Generally when the company has reached significant scale — typically over $100M in annual revenue, with a clear path to profitability. The public markets reward predictability and growth. Hypergrowth with massive losses is harder to IPO into than it was in 2020-2021.

M&A: The Most Common Exit

Over 90% of venture-backed exits are acquisitions, not IPOs. Mergers and acquisitions cover a wide range of outcomes — from $5B strategic acquisitions to $10M acqui-hires. The process, structure, and payout math differ dramatically depending on the size and type of acquisition.

Strategic vs Financial Buyers

Strategic buyers are operating companies (Google, Microsoft, Salesforce) acquiring for product, technology, talent, or market access. They typically pay a premium because the acquisition creates synergies — revenue uplift, cost savings, competitive elimination. Strategic buyers pay with cash, stock, or a mix.

Financial buyers (private equity firms, SPACs) acquire based on financial returns — they plan to optimize operations and sell later at a higher multiple. Financial buyers are more disciplined on price and typically pay lower multiples than strategic buyers. They almost always use leverage (debt) in the acquisition.

Earn-Outs and Retention

Many acquisitions include earn-outs — additional payments contingent on post-acquisition performance milestones. If the acquirer offers $50M upfront plus a $20M earn-out tied to hitting revenue targets over 2 years, you might only see $50M if those targets aren't met. Earn-outs create misaligned incentives and are a common source of post-acquisition conflict. Negotiate for the smallest possible earn-out percentage.

Retention packages are separate from equity proceeds. The acquirer sets aside a pool (often 10-20% of the deal value) for key employee retention. These are new grants that vest over 2-4 years, designed to keep critical talent from leaving. For founders, retention packages can significantly increase their total compensation from the deal.

Secondary Sales: Liquidity Before the Exit

Secondary sales happen when existing shareholders sell their shares to other investors before the company exits. This has become increasingly common as companies stay private longer — 10-12 years average time to exit, up from 5-7 years a decade ago. Nobody wants to wait 12 years for liquidity.

Who buys secondary shares? Dedicated secondary funds, platforms like EquityZen and Forge, late-stage crossover funds, and sometimes the company itself (via tender offers). Secondary shares typically trade at a 10-30% discount to the last primary round price — buyers demand a discount for illiquidity risk and lack of information rights.

Founder Secondaries

Taking chips off the table used to be taboo. Now it's increasingly accepted and even encouraged by sophisticated investors. If a founder sells 5-10% of their holdings in a secondary transaction, they get financial security that helps them think long-term rather than optimizing for a quick exit. Many Series B and C rounds now include a secondary component for founders and early employees.

Acqui-Hires: When the Exit Is Really a Hiring Event

An acqui-hire is when a company is acquired primarily for its team, not its product or revenue. The acquisition price is usually modest — sometimes barely covering the liquidation preferences. Employees get employment offers with new equity packages at the acquirer. Investors get little or nothing beyond their preference stack.

Acqui-hires are common for companies that built impressive technology but couldn't find product-market fit or ran out of runway. From the investor's perspective, getting 0.5-1x back on an acqui-hire is better than a zero. From the founder's perspective, it's a soft landing that keeps the team employed — but the equity upside is gone.

The Liquidation Preference Waterfall: Where the Math Gets Real

The liquidation preference waterfall determines who gets paid and how much at any exit price. This is where the term sheet provisions we discussed earlier translate into actual dollars. Let's work through an example.

Setup: A company raised $5M Series A at $20M post-money (investor owns 25%). The founders and employees own 75%. Total shares: 10M (2.5M to investor, 7.5M to founders/employees). Let's see what happens at different exit prices under three preference structures.

Scenario A: $100M Exit

1x non-participating: Investor converts to common and takes 25% = $25M. Founders get $75M. (Investor would never take $5M preference when conversion is worth more.)

1x participating: Investor gets $5M preference + 25% of remaining $95M = $5M + $23.75M = $28.75M. Founders get $71.25M. The participation cost founders $3.75M.

2x participating: Investor gets $10M (2x preference) + 25% of remaining $90M = $10M + $22.5M = $32.5M. Founders get $67.5M. The aggressive preference cost founders $7.5M compared to the standard structure.

Scenario B: $15M Exit (Below Post-Money Valuation)

This is where preferences really bite. At a $15M exit — below the $20M post-money valuation — the math changes dramatically.

1x non-participating: Investor takes 25% of $15M = $3.75M via conversion — or takes the $5M preference. They take the preference. Founders get $10M.

1x participating: Investor gets $5M + 25% of $10M = $5M + $2.5M = $7.5M. Founders get $7.5M. The investor takes half of the exit proceeds on a 25% ownership stake.

2x participating: Investor gets $10M (2x preference) + 25% of $5M = $10M + $1.25M = $11.25M. Founders get $3.75M. The investor takes 75% of the exit. This is why aggressive preferences are devastating at modest exits.

Optimizing for the Right Exit

The exit path you're building toward should inform every decision: how much you raise, what terms you accept, and how you structure your cap table. If you're building a $50M outcome, participating preferences and high liquidation multiples will eat most of your proceeds. If you're building a $5B outcome, those same terms barely matter because everyone converts to common and shares pro-rata.

The mistake most founders make is not modeling their cap table through different exit scenarios. You should know, for any given exit price, exactly what you, your employees, and each investor class would receive. No surprises.

Learn the mechanics of every exit type in the Exits module at /academy/exits. The Founder learning track at /learn/founder includes a dedicated exits section with interactive waterfall modeling. And for any term you don't recognize, our Glossary at /glossary has plain-English definitions for over 1,000 venture capital terms.