A Down Round Dilutes More Than Ownership—Check Preferences and Ratchets

A down round can change two sets of economics at once. New shares dilute existing holders, while anti-dilution rights may increase the number of common shares into which protected preferred stock converts. Founders and employees therefore cannot judge the effect from the new valuation or post-round ownership percentage alone.

The financing can also carry a larger liquidation preference, participating preferred stock or milestone-based funding. Haynes Boone’s down-round analysis identifies greater preferences, anti-dilution protection and tranche funding as terms investors may seek. These provisions affect dilution, the order of sale payouts and whether all committed capital reaches the company.

Anti-dilution changes conversion, not necessarily the preference

Price-based anti-dilution normally changes how many common shares an existing preferred share can become. It does not necessarily issue additional preferred shares or increase the original liquidation preference. That distinction matters because the adjustment may have no effect when an investor takes its preference, yet materially increase its proceeds when conversion is more valuable.

Under full-ratchet protection, the old preferred stock’s conversion price resets to the new lower issue price, regardless of the size of the dilutive issuance. A broad-based weighted-average provision produces a partial adjustment based on both the price difference and the size of the issuance relative to the company’s capitalization. Cooley’s anti-dilution explanation says the weighted-average form is significantly more common and gives the standard formula: new conversion price = old conversion price × (A + B) ÷ (A + C).

In that formula, A is the defined pre-round capitalization, B is the number of shares the new consideration would have purchased at the old conversion price, and C is the number actually issued at the lower price. The certificate of incorporation determines which options, warrants and convertible securities enter A and which issuances are exempt.

One cap table produces three ownership outcomes

Consider a simplified hypothetical company. Founders hold 6 million common shares, the employee equity bucket contains 1 million shares or options treated as outstanding, and Series A holds 3 million preferred shares purchased for $2 each. The fully diluted, as-converted capitalization is 10 million shares. The company then raises $4 million by issuing 4 million Series B shares at $1 each, with no pool increase.

The three outcomes are:

• No anti-dilution: The total is 14 million shares. Founders own 42.86%, employees 7.14%, Series A 21.43% and Series B 28.57%.
• Broad-based weighted average: A is 10 million, B is 2 million and C is 4 million. The Series A conversion price falls from $2 to approximately $1.714, making its 3 million preferred shares convertible into 3.5 million common shares. Of 14.5 million fully diluted shares, founders own 41.38%, employees 6.90%, Series A 24.14% and Series B 27.59%.
• Full ratchet: The Series A conversion price resets to $1, doubling its conversion ratio. Series A becomes convertible into 6 million common shares. Of 17 million fully diluted shares, founders own 35.29%, employees 5.88%, Series A 35.29% and Series B 23.53%.

The financing price, cash raised and number of Series B shares stay constant, isolating the conversion adjustment. Actual transaction documents may define the capitalization and price-per-share calculation differently, so a live model must follow those provisions rather than assume this simplified sequence.

An option-pool increase adds another dilution layer

The unchanged employee bucket is diluted in every scenario because its 1 million shares become a smaller fraction of the enlarged denominator. Full-ratchet protection reduces that percentage further even though no employee grant changes. Founders experience the same proportional effect.

If the new investor also requires the available pool to reach a specified post-financing percentage, the company must reserve additional shares. When that increase is included in the pre-money capitalization, existing holders generally absorb it before the new investment is counted. Because the allocation depends on the definition of fully diluted capitalization, calculate the pre-money pool dilution separately before combining it with the anti-dilution adjustment.

Liquidation preferences can override the ownership percentages

Now assume a company sale qualifies as a deemed liquidation event. Series A has a $6 million 1x non-participating preference and Series B has a $4 million 1x non-participating preference, with equal priority. Each series may take its preference or convert, but cannot do both. Assume no debt, transaction costs, dividends or option exercise costs.

Harvard’s startup financing guide explains that investors typically hold preferred shares while founders and employees hold common, and that preferred holders may receive a contractual amount before distributions to other shareholders. Applying those rights to the hypothetical produces different results at different sale prices:

• At a $12 million sale: Both preferred series take their preferences, consuming $10 million. The remaining $2 million goes to the founders and employee bucket in their 6:1 common-share ratio: approximately $1.71 million and $0.29 million. Anti-dilution does not change this result because neither preferred series converts.
• At a $40 million sale: Both series receive more by converting, so the fully diluted percentages control. Without protection, founders receive approximately $17.14 million and employees $2.86 million. Under weighted average, they receive approximately $16.55 million and $2.76 million. Under full ratchet, those amounts fall to approximately $14.12 million and $2.35 million, while Series A rises from approximately $8.57 million without protection to $14.12 million.

A senior or multiple preference, participating stock or accrued dividends would change the waterfall again. The relevant comparison is therefore not only ownership before and after the round, but payouts across multiple sale values after every series chooses its economically superior preference or conversion result.

Tranches separate committed capital from cash received

A commitment to invest $4 million is not equivalent to receiving $4 million at closing. In a tranche financing, later installments can depend on product, revenue, customer or regulatory milestones. The American Bar Association’s tranche discussion explains that a company missing a milestone may face later negotiations from a weak position if it still needs the remaining capital.

The model should distinguish shares issued at the initial closing from shares issuable in later tranches, following the transaction documents. The operating plan should likewise show cash received rather than merely committed. A complete comparison links four outputs: post-closing capitalization, the option-pool calculation, conversion-price adjustments and liquidation waterfalls at multiple sale values.

Also read:

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