Stock options

Stock options

Author: Adam Lewis
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Read time:  3 minutes
Published date:  4 April 2023
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Updated date:  12 April 2024
Received stock options from a startup and don't understand what that means or how they work? Here's how to make sense of your offer letter and option grant.

What are stock options?

Stock options are a form of equity compensation that allows an employee to buy a specific number of shares at a pre-set price. Many startups, private companies, and corporations will include them as part of a compensation plan for prospective employees. Companies often offer stock options as part of your compensation package so you can share in the company’s success.

Stock options aren’t actual shares of stock—they’re the right to buy a set number of company shares at a fixed price, usually called a grant price, strike price, or exercise price. Because your purchase price stays the same, if the value of the stock goes up, you could make money on the difference. The hope is you get to sell your purchased shares for more than you paid for them. However, you’re never required to exercise—that’s why they’re called options.

What is a stock option grant?

Stock option grants are how your company awards stock options. This document usually includes details about:

  • The number of shares you can purchase

  • Your strike price

  • Your vesting schedule

Your stock option grant should also specify its expiration date. In general, options expire 10 years from the date you’re granted them. However, your option grant can also expire after you leave the company—you may only have a short window of time to exercise your options (buy the shares) after you leave. If you don’t exercise your stock options before then, you’ll lose the opportunity to purchase them.

Ask your company if you didn’t receive a stock option grant. If you just joined in the last month or two, it’s possible that the board has not yet approved your stock options, in which case you should receive the grant shortly after the next board meeting.

Remember: If you hope to purchase and sell your stock someday, accepting your stock option grant is the first step you have to take.It doesn’t cost anything to accept the grant, and you’re not obligated to actually exercise your options. By accepting it, you’re simply giving yourself the opportunity to exercise in the future. 

If your company uses Carta to issue stock options, you won’t receive a paper version of your stock option grant. Instead, simply log into your portfolio to view, accept, and print the actual agreement.

Instead of stock options, some companies offer alternative equity awards, such as restricted stock awards (RSAs) or restricted stock units (RSUs). These types of equity awards are not the same as stock options, and are treated differently for tax purposes.

How do stock options vest?

Vesting is the process of earning something over time. Companies use vesting to encourage you to stay with them and contribute to the company’s success over many years.

Vesting schedules

Vesting typically occurs on a time-based schedule outlined in the stock option agreement. The vesting start date should be listed on your option agreement. Many companies have a vesting schedule that is four years long, often beginning with a standard one-year “cliff.” A cliff is a period of time that has to elapse before you get any of your vested options.

stock options vesting schedule with 1 year cliff

For example, Meetly is a company that offers options on a four-year vesting schedule with a one year cliff. At Meetly, the vesting start date is the employee’s first day of work. If you take a job at Meetly that includes an award of 100 stock options, you’ll start the vesting clock on your first day of work—but you won’t get your first tranche of 25 options until your one-year work anniversary. After that, you’ll have the option to buy 25 shares. The rest of your options will continue vesting monthly according to the vesting schedule.

Without the cliff, you could accept the offer, work at Meetly for a month, buy a bunch of the company’s stock, and then quit. An option grant that includes a cliff prevents that.

How do stock options work after termination?

If you leave the company, your stock options will most likely stop vesting immediately, and you may only have the right to purchase those options that have vested as of the date you leave the company. You only maintain your option rights for a set window of time after termination, called a post-termination exercise period (PTEP). Historically, many companies used a standard PTEP of three months or 90 days. However, some companies offer more generous PTEPs now. At Carta, for example, you have as long as you worked at the company to buy your shares.

Don’t forget about this window of eligibility. Your company isn’t obligated to remind you when you leave — they usually only tell you in your option grant when you first join.

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DISCLOSURE: This communication is on behalf of eShares Inc., d/b/a Carta Inc. (“Carta”). This communication is for informational purposes only, and contains general information only. Carta is not, by means of this communication, rendering accounting, business, financial, investment, legal, tax, or other professional advice or services. This publication is not a substitute for such professional advice or services nor should it be used as a basis for any decision or action that may affect your business or interests. Before making any decision or taking any action that may affect your business or interests, you should consult a qualified professional advisor. This communication is not intended as a recommendation, offer or solicitation for the purchase or sale of any security. Carta does not assume any liability for reliance on the information provided herein. ©2019–2024 eShares Inc., d/b/a Carta Inc. (“Carta”). All rights reserved. Reproduction prohibited.