Authorized shares
Authorized shares are the maximum number of shares a company's charter allows it to issue, a cap that shares outstanding plus shares reserved for warrants, convertibles and plans cannot exceed.
Last verifiedWhat it is
A company's certificate of incorporation sets how many shares of each class it may issue. Shares actually issued and held by investors are outstanding. Companies also reserve authorized shares for outstanding warrants, convertible securities and equity incentive plans. The gap between authorized and (outstanding plus reserved) is how much room the company has for new issuance without changing its charter.
Why it matters
- A ceiling on dilution. A company cannot sell more shares than are authorized and unreserved. Financing agreements often require the company to reserve a multiple of the shares needed for conversions.
- Increases need a vote. Raising the authorization usually requires a charter amendment approved by shareholders, which appears in a proxy statement. A proposal to increase authorized shares is a strong hint about planned issuance.
- Reverse splits create room. A reverse split that does not proportionally reduce the authorized count leaves far more unissued shares available.
Worked example
Hypothetical: Company X has 100,000,000 authorized shares, 80,000,000 outstanding and 15,000,000 reserved for warrants and its equity plan. Only 5,000,000 are available. It then completes a 1-for-10 reverse split without changing the authorization: outstanding becomes 8,000,000, reserves become 1,500,000, and 90,500,000 shares are available, about 11 times the new outstanding count.
How to spot it
The balance sheet equity section and the equity footnote of a 10-Q or 10-K state authorized, issued and outstanding shares. Proxy statements (DEF 14A, PRE 14A) contain proposals to increase the authorization, and an 8-K under Item 5.03 reports the charter amendment. See Share authorization increases.
Guides that use this term
- Equity Line of Credit (ELOC) Financing ExplainedHow an equity line of credit (ELOC) works, and why share caps, volume limits, ownership blockers and falling prices keep proceeds far below the headline amount.
- Float vs Shares Outstanding: What Is the Difference?Float vs shares outstanding explained: how shares outstanding, non-affiliate float and tradeable float differ, where each is disclosed and when each matters.
- Authorized Share Increases: Reading the Proxy VoteWhat authorized shares are, why companies ask shareholders to increase them, how to calculate real headroom, and how a reverse split changes the share math.
- The Reverse Split Dilution Cycle ExplainedHow reverse splits, resale registrations and convertible financings can repeat as a dilution cycle, with a typical timeline and a worked two-loop share count.
- Proxy Statements: PRE 14A vs DEF 14A ExplainedProxy statements explained: PRE 14A vs DEF 14A, why a preliminary proxy flags a reverse split or share increase, and how those Schedule 14A votes are counted.
- Reverse Stock Split Explained: How It WorksHow a reverse stock split works, its stages and filings, fractional shares, ADS ratio changes, bid-price rules and Nasdaq's 250-to-1 cap.
Related terms
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Definition from the Signal8 Academy glossary. Educational content only. DilutionScan and Signal8 are not broker-dealers or investment advisers, and nothing here is a recommendation to buy or sell any security.