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Investment Strategy

Stock Options and Tender Offers: How to Be Proactive Before the Window Opens

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September 22, 2026
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6 min. read
Joseph D. Stabile

If you work at a private company and receive equity compensation like incentive stock options (ISOs) or non-qualified stock options (NSOs), there's one obvious problem:

Your equity isn't easily turned into cash.

Unlike stock in a public company, you usually can't just log into your account and sell your shares whenever you want. Traditionally, employees think they have to wait for the "holy grail" liquidity event, an IPO or acquisition, to finally turn some of that equity into cash.

But that's not always true.

A tender offer can give eligible employees and shareholders an opportunity to sell some of their private-company stock before an IPO or acquisition.

The problem? Tender offers can be temporary, eligibility and sale limits vary, and the window to make a decision can be relatively short.

That means the worst time to start thinking about your stock options may be after the tender offer is announced.

I've seen this firsthand. I worked with an employee at a fast-growing startup whose valuation had increased significantly through multiple funding rounds. When the company began offering liquidity opportunities, she didn't initially understand what a tender offer was or how her existing stock options fit into it.

That's exactly why planning ahead matters.

First: Having Stock Options Doesn't Mean You Own the Stock

This is one of the most important things to understand about stock options.

An option is the right to purchase stock. It is not the stock itself.

If you have 50,000 vested options, you don't necessarily own 50,000 shares of your company. You generally have to exercise those options, meaning purchase the shares at your exercise price, to become a shareholder.

For example, say you have:

  • 20,000 vested options
  • A $2 exercise price
  • A current company share value of $10

Exercising all 20,000 options would require $40,000 of cash just to purchase the shares. And depending on the type of option, there may also be tax consequences.

That's why a tender offer can create multiple decisions at once: Should I exercise my options? If so, which options and how many? And if I'm eligible to sell shares in the tender offer, how much should I sell?

Ideally, you're thinking through these questions well before the tender offer arrives.

Know Which Type of Stock Options You Have

The two common types of employee stock options are incentive stock options (ISOs) and non-qualified stock options (NSOs). The distinction matters because they're taxed differently.

Incentive Stock Options

ISOs can receive favorable tax treatment if certain holding-period requirements are satisfied. Generally, to receive qualifying disposition treatment, you need to sell the shares more than two years after the option's grant date and more than one year after exercising the option.

If you exercise ISOs immediately before a tender offer and then sell those shares during the tender window, you generally won't satisfy the one-year post-exercise holding requirement. That doesn't necessarily mean exercising and selling is a bad decision. It means the tax outcome will be different.

This is one reason proactive planning can be so valuable. If you believe a future tender offer is possible, exercising at least some ISOs earlier may start that one-year holding-period clock before the liquidity opportunity arrives.

Of course, doing that introduces investment risk, which brings us to the bigger question.

Should You Exercise Your Options Before a Tender Offer?

Before we talk taxes, remember: exercising stock options is first and foremost an investment decision.

Ask yourself: If this weren't my employer, would I be comfortable investing this amount of my own money into this company?

Private-company stock can have enormous upside. It can also decline significantly or become worthless. And unlike a public stock, you may have very limited opportunities to sell.

Before exercising, I would think through several areas.

1. Your conviction in the company

How strongly do you believe in the company's long-term prospects? Consider its growth, competitive position, funding, valuation, profitability trajectory and the risks facing the business. Don't exercise simply because you work there or because the stock's value has increased on paper.

2. Your liquidity

Can you actually afford the exercise? Your basic exercise cost is: number of options exercised × exercise price. But that's only part of the equation. Depending on the option type and circumstances, taxes may also need to be considered. You don't want to drain your emergency fund or sacrifice money needed for a home purchase, wedding, childcare or another short-term goal just to exercise stock options.

3. Your overall concentration

Your employer already provides your paycheck. Potentially having a large percentage of your investment portfolio tied to the same company creates another layer of risk.

One useful calculation is: company stock value ÷ total investable assets. If company stock represents 20% of your investable assets, that's meaningful concentration. If it's 50%+, your financial future may be heavily dependent on the success of one company.

That doesn't mean you can never hold concentrated stock. There are situations where taking calculated risk makes sense. The better question is: Do I have enough assets outside of this company to accomplish my important financial goals if this investment doesn't work out?

I also like thinking about this through regret minimization rather than pure profit maximization. Which outcome would bother you more? Selling some shares and watching the stock eventually triple? Or refusing to sell anything and watching a life-changing amount of paper wealth disappear? There isn't one correct answer, but asking the question can help you find the appropriate level of risk.

Understand the Tax Bill Before You Exercise or Sell

Taxes shouldn't be the only factor driving your decision, but you absolutely want to understand them before participating in a tender offer.

ISOs and AMT

ISOs generally don't create regular ordinary income tax when exercised, but exercising can create an adjustment for the Alternative Minimum Tax (AMT). The difference between the stock's fair market value at exercise and your exercise price, the bargain element, can increase your income for AMT purposes.

For example:

  • Exercise price: $2
  • Fair market value at exercise: $10
  • Bargain element: $8 per share

If you exercise 20,000 shares, that's potentially $160,000 of additional AMT income to account for. This can surprise employees who exercise a large block of ISOs without doing a tax projection first. The actual AMT impact depends on the rest of your tax situation, which is why modeling the exercise before you click the button can be valuable.

NSOs and Ordinary Income

NSOs work differently. When you exercise an NSO, the bargain element is generally treated as ordinary compensation income. If your exercise price is $2 and the stock is worth $10 when you exercise, that's an $8 bargain element. Exercise 20,000 shares and you're looking at $160,000 of compensation income before considering any subsequent capital gain or loss. After exercise, future appreciation or depreciation generally becomes a capital gain or loss when you eventually sell the shares.

Which Shares Should You Sell in the Tender Offer?

Once you've decided to participate, there's another question: which shares should you sell? Don't automatically assume every share is economically identical. Look at each lot and understand:

  • Cost basis
  • Current value
  • Unrealized gain
  • Exercise date
  • ISO vs. NSO
  • Short-term vs. long-term holding period
  • Whether ISO qualifying-disposition requirements have been met
  • Any company-specific tender eligibility restrictions

A share you've held for several years may have a very different tax consequence from one you exercised three months ago. Long-term capital gains rates are generally lower than short-term rates, but that doesn't automatically mean the oldest shares should always be sold first. Taxes are one input. Risk and diversification matter too. Saving money on taxes isn't much of a victory if it requires taking substantially more investment risk than you're comfortable with.

Strategies to Consider Before a Tender Offer

This is where proactive planning becomes valuable. Depending on your situation, you might consider:

  • Exercising ISOs earlier. If you have the liquidity and risk tolerance, exercising some ISOs well before an anticipated liquidity event can start the one-year holding period required for favorable ISO tax treatment.
  • Being strategic about ISOs versus NSOs. If you're exercising specifically to sell shares shortly afterward, you should understand whether you're giving up potential ISO tax benefits and compare that with the tax treatment and economics of your NSOs.
  • Spreading exercises across tax years. Rather than exercising a huge block of options at once, you may be able to exercise strategically over multiple years based on your cash flow, AMT exposure and expected income.
  • Doing an AMT projection before exercising ISOs. Instead of finding out about AMT the following April, model different exercise amounts beforehand.
  • Planning for the tax bill. If an exercise or tender offer will create significant taxable income, determine where that tax money will come from before completing the transaction.
  • Coordinating other tax strategies. A high-income year may increase the value of maximizing available pre-tax retirement contributions or accelerating charitable giving you already planned to do. For charitably inclined households, a donor-advised fund may be worth evaluating.

The important point is that none of these decisions should happen in isolation. Your exercise strategy, tender-offer strategy, taxes, cash flow, portfolio concentration and financial goals all affect one another.

Don't Wait Until the Tender Offer Arrives

The biggest takeaway is simple: a tender offer shouldn't be the first time you start thinking seriously about your stock options.

If you work for a growing private company, start planning before there's a liquidity event on the calendar. Understand what you own. Understand what it costs to exercise. Know your ISO and NSO tax consequences. Decide how much of your personal wealth you're comfortable tying to your employer.

And have a framework for how much you'd potentially sell if a liquidity opportunity arrives. Because when a tender offer does show up, you want to be making a decision based on a plan you've already built, not trying to learn everything about your stock options while the clock is ticking.

‍

By failing to prepare, you are preparing to fail.

Benjamin Franklin
Any discussion of taxes is for general information purposes only, does not purport to be complete or cover every situation, and should not be construed as legal, tax or accounting advice. Clients should confer with their qualified legal, tax and accounting advisors as appropriate. CRN202807-9160872

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