Employee Option Grant Guide

An option grant is how startups give employees and advisors the opportunity to own part of the company over time. Instead of handing over shares immediately, the company grants the right to purchase shares in the future at a fixed price, usually subject to vesting. Option grants are a core part of startup compensation because early-stage companies often trade higher risk for meaningful upside. For founders, understanding option grants is critical: they shape hiring power, dilution, incentives, and long-term culture.

What Is an Option Grant?

An option grant is a formal award of stock options that gives someone the right to buy company shares at a predetermined exercise price, typically over a vesting schedule.

Simplified:
It’s the company saying, “You can buy X shares at this price later, if you stay and earn them.”

Option grants typically include:

• Number of options
  
  

• Exercise (strike) price
  
  

• Vesting schedule
  
  

• Expiration period
  
  

• Type of option (e.g., ISO or NSO in the U.S.)
  
  

Why It Matters for Founders

Strategic impact

• Aligns employees with long-term company growth.
  
  

• Helps attract talent when cash compensation is limited.
  
  

• Reinforces ownership culture in early-stage teams.
  
  

Financial impact

• Impacts dilution over time.
  
  

• Affects cap table planning and future fundraising.
  
  

• Influences employee retention and compensation costs.
  
  

Marketing impact

• Strong equity packages can differentiate a startup in competitive hiring markets.
  
  

• Transparent option structures signal maturity to investors.
  
  

• Option strategy shapes employer brand perception.
  
  

Hiring and growth impact

• Enables competitive compensation without overextending cash runway.
  
  

• Supports retention through vesting incentives.
  
  

• Encourages employees to think long-term.
  
  

How It Works

1) Board Approval

Option grants must be approved by the board under an established equity incentive plan.

2) Strike Price Is Set

The exercise price is typically based on the company’s latest fair market value (often determined via a 409A valuation in the U.S.).

3) Vesting Schedule Applies

Most startups use:

• Four-year vesting
  
  

• One-year cliff
  
  

• Monthly vesting thereafter
  
  

4) Exercise Opportunity

Once options vest, the holder can exercise (buy) shares at the strike price.

5) Exit or Liquidity Event

If the company exits at a higher valuation than the strike price, the option holder may profit from the difference (subject to taxes and liquidity timing).

Real-World Example

A startup grants a product manager 10,000 options at a $1 strike price under a four-year vesting schedule.

After two years:

• 50% (5,000 options) have vested.
  
  

• The company raises at a valuation implying a $5 per share price.
  
  

If the employee exercises at $1 and the shares are later sold at $5:

• The gross gain per share is $4 (before taxes).
  
  

If the employee leaves before one year:

• Nothing vests due to the cliff.
  
  

Common Mistakes

• Confusing options with shares
  Options are rights to buy shares, not shares themselves.
  
  

• Ignoring the strike price
  High strike prices reduce potential upside.
  
  

• Not understanding vesting
  Employees often misunderstand cliffs and vesting timelines.
  
  

• Over-granting early without planning
  Large early grants can distort the cap table later.
  
  

Failing to explain tax implications
Option exercises can trigger tax events depending on structure and jurisdiction.