Meaning
Mathematical rules determine the reduction in the ownership percentage of existing shareholders when new shares are issued. These equity dilution mechanics quantify how the entry of new capital or the exercise of options shifts the relative weight of each individual holding. The logic applies whenever the total number of shares outstanding increases without a proportional increase in the holdings of current owners.
Proportional Shift
Every new issuance expands the total denominator of the ownership equation. A proportional shift occurs as the original founder’s slice of the company becomes smaller in percentage terms even if the absolute value of the shares increases. Investors often accept this trade to bring in the capital needed for expansion.
Protection Strategy
Certain agreements include clauses to minimize the impact of future rounds. A protection strategy might involve anti dilution rights that grant the founder additional shares if the company is valued lower in a subsequent round. This prevents a sudden loss of control during a down round.
The cost of such protection is often paid by the later investors who see their own holdings reduced. These rights are negotiated during the initial term sheet stage and remain in effect until a major exit event occurs. The presence of these clauses can make future fundraising more complex because new lenders may demand their removal.
Conversion Weight
Preferred shares often convert to common shares at a specific ratio. The conversion weight determines how many common units each preferred unit receives upon a liquidity event. This ratio is a primary driver of the final distribution of proceeds.
It ensures that the capital hierarchy is respected during the sale.
