anti-dilution provision
Anti Dilution Provision is a clause protecting an investor's ownership percentage or share value when a startup later sells shares at a lower price than before.
In plain English
Uncle Femi and his three brothers own a family compound in Ikorodu, split evenly, each with a quarter share. When one brother sold his portion of the land at a giveaway price to a stranger just to raise quick cash, the remaining three watched the value of everyone's share calmly get pulled down by that one cheap sale, because the price of the whole compound is now judged by the newest, weakest sale.
That is dilution, and it is exactly what happens to an early investor in a startup when the company later raises money at a lower valuation than before, in what people in the startup world call a down round.
Say a Lagos investor puts ₦20,000,000 into a fintech startup when each share is valued at ₦1,000. She owns 2%. A year later, the company is struggling and needs cash badly, so it sells new shares at ₦400 each to a new investor. Without protection, her original shares are now worth far less, and her 2% stake shrinks in value even though she did nothing wrong.
An anti dilution provision is the clause her lawyer inserted in the original investment agreement that says if this ever happens, her shares get adjusted, sometimes converting extra shares to her at no additional cost, so her stake does not get punished for a decision she had no part in making.
In the UK, this is standard in venture capital term sheets, often written as full ratchet or weighted average anti dilution, and any Nigerian founder raising from foreign investors will meet this clause early, usually in the first serious negotiation.
For a diaspora Nigerian sending capital home to back a cousin's startup, this clause is the calm insurance policy that says your money is respected even if the company hits a rough patch later.
An investor owns 2% of a startup bought at ₦1,000 per share. The company later issues shares at ₦400 each. With a weighted average anti dilution clause, her existing shares are adjusted upward in number so her effective ownership value is cushioned, rather than left to shrink freely with the falling price.
Questions people ask
Does every investor automatically get anti dilution protection?
No. It must be written into the investment agreement or shareholder agreement before money changes hands. Founders and early investors negotiate the exact terms, and not every round includes it, especially informal family and friends investments.
Does anti dilution protection hurt the founder?
It can, because adjusting an investor's shares upward often means issuing more shares to them, which slightly reduces the founder's own ownership percentage. Founders usually negotiate the weighted average version, which is gentler than full ratchet.
Is this only for big startups raising foreign money?
No. Even a small Nigerian business raising ₦10,000,000 from a handful of local angel investors can include a simple version of this clause, and it is worth asking a lawyer to add it before signing anything.
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