How new equity changes ownership, per-share measures and financing outcomes.
Ownership dilution
If a company has 20 million shares outstanding and issues 5 million additional shares, the total rises to 25 million. Existing shareholders collectively own 80% of the post-issuance company rather than 100%. The new investor holds 20%, assuming no other changes. The ownership dilution is 20% of the post-issuance total, while the share count increased 25%. These percentages describe different denominators.
Economic dilution
Issuance below a company's underlying per-share economic value can transfer value from existing holders to new holders, but a stock-market price is not automatically intrinsic value. A financing can also create value if proceeds enable projects with attractive returns, extend runway or avoid distress. The outcome depends on how capital is used and the terms of issuance.
Variable-price instruments
When the number of shares issued is calculated as cash raised divided by a variable purchase price, a falling share price requires more shares for the same proceeds. For example, raising $4 million at $2.00 requires 2 million shares, while at $1.00 it requires 4 million. The example assumes unrestricted issuance and ignores fees, floors and exchange limits.
A simple pro forma method
Begin with a current, verified share count. Add shares expected from the proposed financing and separately identify shares that could arise from options, warrants and convertible securities. Show basic and fully diluted views. Consider stock splits and reverse splits consistently, and do not mix pre- and post-split figures.
Governance and ownership thresholds
Dilution can affect voting control, public float, ownership thresholds and stock-exchange shareholder approval requirements. A contractual beneficial-ownership cap may limit an investor's holdings at a point in time but does not necessarily cap total shares acquired over a facility's life.
Conclusion
A sound dilution analysis shows the formula, dates, instrument assumptions and alternative share prices. It should never present a single static percentage as the full financing outcome.
This article is original educational commentary using explicitly illustrative examples. It is not based on live issuer-specific financial data, and is not legal, tax, investment or financing advice. Transaction terms and regulatory requirements vary by issuer and jurisdiction.