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Common share

As explained in Tech Startup Toolkit

A common share class is a class of company equity that generally carries residual economic rights without the liquidation preferences granted to preferred shares.

What do founders actually own before outside investors arrive? Common shares are the company’s original equity class, held by founders, management, and employees. They represent ownership, but they do not carry the preferential exit or liquidation treatment given to preferred shares. section 10.3 section 10.4

The ownership tradeoff

At Dover, one founder initially owned every share. Adding cofounders and employees diluted that ownership, and the seed round diluted common ownership further when new shares were issued to investors. The uncomfortable but practical choice was owning a larger percentage of nothing or a smaller percentage of a funded company. section 10.3

Keep these practical points in mind:

  • Common is the only share class before the seed round; seed investors receive a new preferred class. section 10.3
  • Issuing preferred shares reduces common’s percentage of the overall company, even when the financing makes the company more viable. section 10.3
  • In a low-value exit or liquidation, preferred shareholders are paid first, leaving common holders with little or nothing. section 10.4
Figure 10.1 Pre- and post-money valuations for a sample seed and Series A. Values are in millions, except price per share.
figure

Compare how common ownership changes as preferred seed and Series A shares are added to the capitalization structure. section 10.4

How Tech Startup Toolkit covers it

How deep it goes
Defines the class, demonstrates dilution, and explains liquidation priority without detailing broader share-class mechanics.
Examples
Uses founder dilution at Dover and a six-million-share seed valuation example to make ownership changes concrete.
What you can do after
Evaluate how issuing preferred shares changes common ownership and potential liquidation proceeds.
How it connects
Connects common shares to preferred shares, seed rounds, dilution, valuations, and liquidation preferences.

Related concepts

This explainer was generated by Manning's knowledge graph from the text of Tech Startup Toolkit. The section links point to the parts of the book it draws on.