IPO and Acquisition Planning: Pre-Event Exercise, Lockup, and QSBS

Before an IPO or acquisition closes, plan pre-event exercises at lower valuations, understand how lockup periods constrain your selling, set up 10b5-1 trading plans for post-lockup liquidity, and verify QSBS eligibility before the company's status changes.

Pre-IPO exercise decisions are time-sensitive. Exercising ISOs before the IPO (when the fair market value is lower) reduces both the AMT hit and the spread subject to ordinary income for NSOs. Once the stock is publicly traded and the price increases, the tax cost of exercising rises with it. A CPA models the tax impact at current 409A valuations versus projected post-IPO prices to determine whether early exercise makes sense.

Lockup periods constrain your timing. Most IPOs impose a 90-to-180-day lockup during which insiders cannot sell. You own the stock but cannot liquidate it, so you carry market risk without the ability to diversify. Planning for this window -- including tax withholding on any exercises done near the IPO -- prevents surprises.

10b5-1 plans provide structured selling. After the lockup expires, a pre-arranged 10b5-1 trading plan lets you sell on a schedule while complying with insider trading rules. A CPA coordinates the sell schedule with tax bracket management to avoid bunching all income into one year.

QSBS may apply. If your shares qualify as Section 1202 Qualified Small Business Stock, up to $10 million in gain (or 10x your basis) may be federally tax-free. Eligibility depends on the company's size, structure, and your holding period. A CPA evaluates whether your shares meet the requirements before the IPO changes the company's status.

The pitfall: Waiting until after the IPO to start tax planning leaves the highest-impact decisions -- early exercise, QSBS eligibility, holding period optimization -- off the table.