Share Buyback

A share buyback is a corporate action in which a company purchases its own shares from existing stockholders, reducing the outstanding share count. Also called share repurchase or stock buyback, the repurchased shares either become treasury stock or are canceled, used at public companies as a capital-return mechanism and at private companies as an employee/investor liquidity mechanism via tender offers. It is the corporate analog of an individual stockholder selling shares, with the company itself as the buyer.

The two main contexts:

Public-company buybacks:

• Authorization: board approves a buyback program with a defined authorization amount (e.g., "$2B share repurchase authorization") and timeline.
• Execution: company purchases shares from the open market over time, typically through brokers, at prevailing market prices.
• Tax structure: gain on the sale by the selling stockholder is taxable to them (capital gain typically). The buyback itself is not taxable to the company (treated as a capital transaction).
• Strategic motivations: return of capital to stockholders (alternative to dividends; capital gains are typically taxed more favorably than dividends), boost EPS (lower share count with same earnings = higher EPS), signal management confidence in undervalued stock, offset dilution from employee equity grants.
• 2023-2024 context: a 1% federal excise tax now applies to public-company stock buybacks under the Inflation Reduction Act. This modestly changes the math but hasn't eliminated buybacks.

Private-company buybacks (tender offers):

• Authorization: requires board approval and typically preferred-stockholder consent under protective provisions (which usually require preferred approval for stock repurchases other than terminated employee buybacks).
• Execution: structured as a formal tender offer with defined price, eligibility (which holders can participate), allocation method if oversubscribed, and timeline.
• Funding: typically funded by the company directly, by a new investor entering as part of the tender, or by existing investors increasing their position.
• Strategic motivations: provide employee/investor liquidity at companies not ready for IPO; convert vested options into actual stockholder value; manage cap-table cleanup; reduce share count before major financing rounds.
• 2020s trend: late-stage private companies increasingly run periodic tender offers (typically every 1-2 years) to provide employee liquidity and equity-pool management.

Standard mechanics of a private-company tender offer:

• Eligibility: typically open to employees, sometimes including advisors and former employees. Investor participation varies by deal.
• Pricing: typically at a defined discount to the most recent 409A valuation (often 80-90% of 409A common stock value).
• Caps: per-holder caps (e.g., "each employee can sell up to 20% of vested holdings") and aggregate caps ($X million total tender capacity).
• Allocation: if oversubscribed, pro-rata allocation across electing holders.
• Tax structure: selling holders have capital gains (or losses) treatment based on holding period. The tender is treated as a sale for tax purposes.

What founders get wrong: Treating private-company tender offers as nice-to-have rather than as structural employee benefit. As companies stay private longer (10+ years to IPO is now common), tenured employees accumulate vested equity they can't access. Without tender offers or other liquidity mechanisms, the equity is paper wealth that doesn't deliver actual financial value. The right discipline at late-stage venture-backed companies: build a regular tender-offer cadence, communicate it clearly as part of the equity package, and use it as a recruiting and retention differentiator.

Related: Tender Offer · Treasury Stock · Repurchase Rights · Secondary Sale · Common Stock

FAQ

What is a share buyback?
A corporate action in which a company purchases its own shares from existing stockholders, reducing the outstanding share count and either creating treasury stock or canceling the shares. Used at public companies as a capital-return mechanism and at private companies as an employee liquidity mechanism via tender offers.

Why do public companies do share buybacks?
To return capital to stockholders (alternative to dividends), boost per-share metrics like EPS (lower share count = higher EPS at same earnings), signal management confidence in undervalued stock, and offset dilution from employee equity grants. The 1% federal excise tax on public buybacks added in 2023 modestly changed the math but hasn't eliminated the practice.

Why do private companies do tender offers?
To provide employees and investors liquidity at companies not yet ready for IPO. Late-stage private companies increasingly run periodic tender offers (every 1-2 years) to allow vested employees to convert equity into cash, manage cap-table cleanup, and provide a recruiting and retention benefit. As companies stay private longer, regular tender offers have become important employee benefits.