Share Purchase Agreement Startup: Buying Existing Founder or Investor Shares

Distinguish secondary liquidity from new capital

In a secondary sale, the purchase price normally goes to the selling shareholder rather than to the company. The transaction may therefore provide founder, employee or investor liquidity without increasing the company's cash balance.

This difference should be explicit in board materials, cap-table modeling and communications with investors. A mixed transaction can include both primary issuance and secondary sale, but the two components should still be documented and modeled separately.

Confirm seller title

The buyer should confirm that the seller owns the relevant shares and has power to transfer them. The review can include the share register, certificates or electronic records, cap table, prior subscription documents and any security interest or pledge affecting the shares.

If title has passed through earlier transfers, the chain should be reconciled before closing. The company may also need to confirm that the transfer can be registered under its constitutional documents.

Apply transfer restrictions

Private-company securities are often subject to contractual or legal transfer restrictions. Startup documents can include rights of first refusal, co-sale rights, investor consents, board approvals, lock-ups or restrictions on transfers to competitors.

The closing process should identify which notices, waivers or consents are required and ensure the transaction does not inadvertently trigger rights held by other shareholders.

Review securities-law constraints

In the United States, privately issued securities may be restricted and may not be freely tradable. The availability of a resale exemption and any holding-period or information requirements should be reviewed for the actual transaction.

Other jurisdictions have their own private-company, securities and foreign-investment rules. A share purchase agreement cannot override mandatory legal restrictions.

Update ownership records after closing

Once the transfer is effective, the company's register and cap table should be updated and any required certificates, transfer instruments or filings completed. Investor rights tied to the shares should also be checked to determine whether they transfer automatically, terminate or require a joinder.

The post-closing file should allow a later diligence reviewer to see the seller, buyer, number/class of shares, purchase agreement, consents and updated ownership record.

Practical review checklist

• Define the transaction, instrument, asset or analysis scope before applying a generic template.
• Identify the relevant company, founder, investor, shareholder, inventor or other affected party.
• Separate commercial economics from mandatory corporate, securities, tax or IP-law requirements.
• Collect the executed agreements, cap-table or registry records, diligence evidence and approvals supporting the position.
• Identify assumptions, exceptions, unresolved issues and any point requiring jurisdiction-specific legal advice.
• Model how the terms operate under future financing, exit, default, transfer or product-change scenarios where relevant.
• Preserve a closing or analysis file that allows later investors, acquirers or counsel to reproduce the conclusion.

Company involvement in a shareholder-to-shareholder sale

Although the company may not receive the purchase price in a secondary transaction, it can still play a central operational role. The board may need to approve or register the transfer, existing investors may need notices or waivers, and the buyer may be required to sign a deed of adherence or other joinder to existing shareholder arrangements. The company should also reconcile any employee-option, tax, beneficial-ownership or foreign-investment implications before updating its records. This avoids treating a private secondary sale as a purely bilateral contract between seller and buyer.