Utilize your financial knowledge, give your answer or opinion to the input question or subject . Answer format is not limited.

stock option grant being cancelled because strike price greater than FMV and replaced with a new grant at a higher strike price
What could the tax issues with the IRS be? I thought (but not totally certain) that the tax treatment of an ISO option was based on difference between exercise price and FMV at the time of the sale.  This is an accounting issue. There were times not so long ago that companies actually did these things on purpose, to boost the stock grant values for their employees (especially senior employees). They would give a grant but date it with an earlier date with a more favorable valuation. This is called "backdating", and it brought companies down and CEOs into criminal courts. In addition, only reasonable compensation is allowed as a deduction for the company, and incorrectly set strike price may be deemed unreasonable. Thus, the deduction the company would take for your compensation can be denied, leading to loss of tax benefit (this was also a weapon used by the IRS at the time against companies doing backdating). Last but not least, company that has intentions of going public cannot allow itself such a blatant disregard of the accounting rules. Even if the mistake was not made on purpose (as it sounds), it is a mistake that has to be corrected. What should I take into consideration to determine whether a 27% increase in shares is a fair exchange for an increase in 270% increase in strike price. Did you know the strike price when you signed the contract? Was it a consideration for you? For most people, the strike price is determined at the board approval, since the valuations are not public and are not disclosed before you actually join, which is already after you've agreed to the terms. So basically, you agreed to get 100 sheets of toilet paper, and instead getting 127 sheets. So you're getting 27 sheets more than you initially agreed to. Why are you complaining? In other words, options are essentially random numbers which are quite useless. By the time you get to exercise them, they'll be diluted through a bunch of additional financing rounds, and their value will be determined for real only after the IPO, or at least when your company's stocks are trading OTC with some reasonable volume. Until then - it's just a number with not much of a meaning. The FMV does matter for early exercise and 83(b) election, if that is an option, but even then - I doubt you can actually negotiate anything.