Deal Terms
Anti-Dilution Protection
Investor rights that adjust their conversion price downward if the company later issues shares at a lower price.
Anti-dilution protection adjusts an investor's preferred stock conversion price if the company subsequently issues shares at a lower price per share (a down round). This protects investors from value dilution by giving them more shares upon conversion. The two main types are full ratchet (conversion price drops to the new lower price) and weighted average (conversion price is adjusted based on the size and price of the dilutive issuance).
In Practice
An investor owns preferred shares with a $10 conversion price. The company raises a down round at $5/share. With full ratchet, the conversion price drops to $5, doubling the investor's share count. With weighted average, it might drop to $7.50.
Why It Matters
Anti-dilution provisions are standard in VC deals but their type matters enormously. Full ratchet can devastate founder ownership in a down round, while weighted average is significantly more founder-friendly.
VC Beast Take
Anti-dilution protection is one of those terms that seems abstract until it matters — and then it matters enormously. The 2022-2023 downturn triggered more anti-dilution adjustments than the industry had seen in a decade, as companies that raised at peak 2021 valuations were forced into down rounds. The mechanics are straightforward but the second-order effects are brutal: when investors get repriced shares, the dilution falls disproportionately on common stockholders — founders and employees. This is why experienced founders negotiate 'pay-to-play' provisions alongside anti-dilution: if an investor wants price protection, they should also be required to participate in the down round. Pay-to-play forces investors to put up new money or lose their preferential treatment, aligning incentives between capital preservation and company survival.
Related Concepts
Further Reading
409A Valuations Explained: Why They Matter for Your Stock Options
The 409A valuation sets the price you pay for your stock options. Here's how it works, why early employees get a better deal, and what happens to your strike price as the company grows.
Understanding Your Startup's Fundraising: What It Means for Employees
When your startup raises a new round, your equity changes in ways that aren't always obvious. Here's what dilution actually means, why higher valuations can be misleading, and what new investor rights mean for you.
How to Negotiate a Term Sheet as a First-Time Founder
Your first term sheet is exciting and terrifying. Know what's negotiable, what's standard, and the practical tactics for pushing back on liquidation preferences, board seats, and protective provisions.
Startup Equity: What Founders Don't Understand Until It's Too Late
Most founders think equity is simple: you own X%. But option pools, liquidation preferences, and preferred stock can quietly eat your returns. Here's what actually happens.
What a Series A Process Actually Looks Like
The Series A is where fundraising gets real — partner meetings, deep diligence, and term sheet negotiations. Here's a realistic week-by-week breakdown of what to expect.
Lead Investor vs Follow-On Investor: What Founders Need to Know
Your lead investor sets the terms, anchors the round, and signals to the market. Getting this wrong can stall your fundraise for months. Here's how lead and follow-on dynamics actually work.
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