Per the IRS website: Who Must File
Every corporation which in any calendar year transfers to any person a share of stock pursuant to that person's exercise of an incentive stock option described in section 422(b) must, for that calendar year, file Form 3921 for each transfer made during that year.
Your client should have RECEIVED the forms; the aren't part of his F 1040.
"the game of life is hard to play"
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