What Happens to My Stock Options During a Merger and Acquisition (M&A)?

If your startup is acquired, your equity could increase in value, or become worthless. This guide helps you understand the possibilities.
• Unvested options may be accelerated, canceled, or replaced depending on the deal terms
• Vested options may need to be exercised before the transaction closes, or you could lose them
• Cash buyouts, stock-for-stock mergers, and earnouts all affect your payout differently
• You may face tight deadlines and unexpected tax bills if you need to exercise quickly
• Planning ahead and understanding your agreement is key to protecting your upside
Every deal is different, knowing your rights and timelines helps you make smart moves when it counts.
If you own employee stock options in a private company it important to understand when they become valuable. You may be one of the first employees with a very low strike price or a new hire with a strike price that is equal to the current fair market value of the company, either way, your options don’t realize any value until your company goes through a liquidity event: an IPO or an M&A.
Mergers & Acquisitions or M&As includes multiples types of transactions between 2 (or more) companies, namely the obvious: Mergers and Acquisitions.
A merger is the combination of 2 (or more) companies, given the approval of their shareholders. In a merger, the acquiring company typically continues to operate, while the acquired entity will cease to exist. For example, in the 2010 merger between United and Continental Airlines, Continental cease to exist and the combined company kept United as its name. Companies may also combine their names such as with the 1998 merger between Exxon and Mobil, forming Exxon-Mobil.
In a standard acquisition. the acquiring company buys a majority stake in the acquired company, yet the acquired entity remains operational and continues to conduct business under its original name and structure. For example, in 2017 Amazon bought Whole Foods, but you don't go into Amazon stores to buy groceries, because Whole Foods still operates as if it is a standalone company.Now, you may wonder "what happens to my employee stock options if your private company goes through an IPO or M&A event?"
Like an IPO, M&As are also great news. There are two typical outcomes if you have employee stock options and an M&A occurs, the acquiring company can cash you out or give you company shares. If the acquiring company cashes you out, your outcome is simple: you receive cash and pay taxes on the gains. If the acquiring company decides to give you company shares, either you will receive publicly traded shares, and your situation will mimic the IPO outcome, or if acquired by a private company, you will receive private shares and you will be back in the same situation as before: waiting for liquidity.
For more information on how to monetize your private company equity, please contact us below.
Written by Jordan Long, Marketing Lead at ESO Fund
Your options may be accelerated, cashed out, converted to new stock, or canceled, depending on the acquisition terms.
If the company never exits, you may hold illiquid shares indefinitely, and you’ve already paid taxes and exercise costs.
Yes, you will owe taxes when you sell based on your profits and how long you held the stock.
ESO Fund helps startup employees exercise their stock options without risking their own cash. We provide non-recourse funding, covering 100% of the exercise cost and taxes, so employees can retain ownership and benefit from future upside. If the company doesn’t succeed, you owe us nothing—we take on all the risk.
Equity decisions are complex, but you don’t have to navigate them alone. ESO Fund has been helping employees unlock the value of their hard-earned equity for over a decade. Whether you’re exercising, planning for taxes, or looking for liquidity, we’re here to provide clear, non-recourse funding solutions tailored to your situation.
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