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What happens to your shares in a merger?
The merger agreement sets what each eligible share converts into at the transaction’s effective time. Depending on the deal, that may be cash, a fixed number of shares in the acquiring company, cash and shares together, or consideration calculated using a formula. Some shares, awards, or other securities may be treated differently, and the agreement can define exclusions or special rights.
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For example, one SEC-filed all-cash merger proxy says eligible shares convert into $9.50 per share, without interest, at the effective time. That is a term of that particular transaction, not a typical or guaranteed merger payout. Read the deal’s proxy statement for its specific terms.
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Cash, stock, and mixed consideration
Do not infer your payout from the word “merger” or from a headline announcing a deal. Look for the section titled “Merger Consideration” or similar in the definitive proxy statement, proxy statement/prospectus, or merger agreement. It should explain what eligible shares receive and whether the amount or ratio can change.
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| Consideration type | What the terms may specify | What to check |
|---|---|---|
| Cash | A stated cash amount for each eligible target share. | Payment timing, eligibility, exclusions, and whether interest is included. |
| Stock | A number of acquirer shares for each target share, often called the exchange ratio. | Whether the ratio is fixed, floating, or subject to adjustment; fractional-share treatment. |
| Mixed | Both cash and acquirer shares, or a formula combining them. | How each component is calculated and whether elections, proration, or price thresholds apply. |
Fixed and adjustable exchange ratios
A fixed exchange ratio specifies a set number of acquirer shares for each eligible target share. Some deals instead provide for a floating ratio, price collar, or other adjustment formula. For example, an SEC-filed Iridium–Rocket Lab report describes $27 cash plus stock and a ratio of 0.4000 when the measured Rocket Lab share price is at or below $67.50, 0.2400 at or above $112.50, and a formula between those thresholds. Those values describe only that transaction. See the transaction’s Form 8-K for its terms.
Fractional shares and equity awards
If the calculation would leave you with less than a whole acquirer share, the deal may pay cash instead of issuing the fraction. The agreement or proxy explains whether fractional interests are aggregated and how the cash amount is calculated. Stock options, restricted stock units, and other employee awards may have separate conversion, cancellation, or payment terms; do not assume they follow the treatment of ordinary shares. The FOX–Roku filing, for example, provides cash instead of issuing fractional FOX shares. Check the FOX–Roku joint proxy statement/prospectus.
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Why deal value can differ from market value
A stated deal value and the market value of what you will receive are not always the same. In a stock deal with a fixed ratio, the number of acquirer shares may be fixed, but their market price can move before the deal closes. Cash in a mixed offer may be fixed while the stock component rises or falls.
The FOX–Roku joint proxy statement/prospectus proposed 0.9693 FOX Class A shares plus $96 cash for each eligible Roku share. It says the ratio would not change with FOX’s share price and that the implied value of the consideration would fluctuate with that price until the mergers were consummated. Its dated illustrations were $162.20 per Roku share using FOX’s June 11, 2026 closing price and $161.16 using its August 27, 2026 closing price. These are historical, transaction-specific calculations—not current quotes or typical merger outcomes. The joint proxy statement/prospectus explains the calculation.
To estimate the value of a fixed-ratio stock component, multiply the number of acquirer shares per target share by the acquirer’s share price on a clearly stated date, then add any cash component. This is an estimate, not a promise of the amount you will realize: the price can change, and the transaction may not close on its announced terms.
Tax treatment depends on the deal and the holder
Tax consequences are not determined by the label “merger.” An all-cash exchange may generally be taxable for U.S. federal income-tax purposes. A stock or mixed transaction can have different treatment, and any intended tax-free reorganization may depend on specific conditions being met. One SEC-filed Iridium–Rocket Lab report describes tax-free reorganization treatment as conditional on the value relationship between its stock and cash meeting stated requirements; that does not establish tax-free treatment for another deal.
Your outcome can also depend on your tax basis, holding period, the amount and type of consideration, and where you owe tax. Deal documents may describe general U.S. federal consequences, but they do not determine your individual federal, state, local, or non-U.S. tax situation. Review the tax section of the filing and consult a qualified tax adviser about your circumstances. An SEC-filed proxy shows how a transaction may describe its tax treatment.
What to check and do as a shareholder
- Find the definitive deal filing. Search the issuer’s investor-relations page or SEC filings for the definitive proxy statement or proxy statement/prospectus. Read the summary and the sections on consideration, merger terms, conditions, risks, tax, voting, and the exchange agent.
- Check the deal’s status. Determine whether it is only proposed, has received shareholder approval, still awaits other conditions, or has closed. Announced consideration is not the same as cash or shares already delivered.
- Identify the treatment of your holdings. Confirm what each eligible share converts into, whether the ratio can adjust, how fractional shares are handled, and whether options or other awards have separate provisions.
- Assess the value using a dated share price. For stock consideration, calculate an implied value using the ratio and the acquirer’s share price on a specified date. Treat the result as a snapshot, not a guaranteed closing value.
- Follow the instructions that apply to your account. Read notices from the issuer, transfer agent, exchange agent, and broker, including any stated deadline. Some arrangements convert automatically; other circumstances may involve steps for certificates, book-entry shares, elections, or special rights. There is no universal action required for every merger.
- Keep transaction records. Save deal notices and account statements showing what you held and received. Ask a qualified tax adviser about basis, holding period, cash payments, fractional-share proceeds, and the rules for your jurisdiction.
Voting, appraisal, and other rights
The filing should explain whether shareholders are being asked to vote, how and when to submit a proxy, and any election procedures for the consideration. Appraisal or dissenters’ rights are governed by the applicable law and the transaction’s facts; eligibility, procedure, and deadlines can be strict. Do not assume you qualify or that seeking appraisal is preferable based on a general description. Check the deal documents and relevant law, and obtain legal advice if you are considering that route.
How to compare merger offers
If you are evaluating more than one offer or consideration election, compare the mechanics rather than relying only on a headline value. The documents can help you assess:
- Whether consideration is cash, stock, or mixed, and whether an election or proration applies.
- Whether the exchange ratio is fixed, floating, or subject to a collar or thresholds.
- The implied value at announcement and at a later date, using the share price and assumptions stated for each calculation.
- Closing conditions, expected timing, and the possibility that the deal does not close as proposed.
- Fractional-share and equity-award treatment.
- Tax characterization and the consequences that may apply to your own holdings.
- Voting, exchange, and any appraisal procedures or deadlines.
Those factors explain how offers differ; they do not establish a universally best offer or an investment recommendation. The SEC’s Exchange Act rules and Corporation Finance staff interpretations provide regulatory context, but they are not personalized investor guidance or a substitute for the governing deal documents.
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