Liquidity Events: IPOs and Acquisitions

Option holders generally realize liquidity only during an exit event, such as an acquisition or an Initial Public Offering (IPO).

Initial Public Offering (IPO). When a company lists its shares on a public exchange, option holders can exercise their options and sell the resulting shares. For instance, if you hold 2,000 options with a strike price of $150 and the stock trades at $300 post-IPO, you can exercise and sell. The difference between the market price and the strike price is the spread ($150 per share). Exercising costs $300,000 ($2,000\times \$150$), and selling yields $600,000, resulting in a $300,000 gross profit before taxes and transaction fees.

Public companies impose a lockup period (typically 90 to 180 days post-IPO) during which insiders and employees are legally prohibited from selling shares. This prevents market destabilization from sudden selling pressure.

Acquisitions. If the startup is acquired, the treatment of stock options depends on the transaction terms:

Cash Acquisition

The acquirer purchases vested options for their cash spread (acquisition price minus strike price).

Stock Acquisition

Vested options are converted into options of the acquiring company, adjusted by the conversion ratio specified in the merger agreement.

Mixed Acquisition

Option holders receive a combination of cash and acquiring company stock.

Unvested options in an acquisition may undergo:

• Accelerated Vesting: Single-trigger (vesting upon the acquisition) or double-trigger (vesting only if the employee is terminated without cause within a specified window after the acquisition).
• Conversion: Substitution with the acquiring company’s unvested options.
• Cancellation: Forfeiture without compensation.

Acquirers routinely require holdbacks or escrow arrangements, where a portion (often 10%) of the acquisition proceeds is withheld to cover potential indemnification claims or tied to employment retention milestones.