Form 4: PubMatic CFO Sells Shares, Vesting Continues

PubMatic's Chief Financial Officer, Steven Pantelick, reported transactions involving the sale of Class A Common Stock to cover tax withholding obligations and the vesting of Restricted Stock Units.

Summary

• Steven Pantelick, Chief Financial Officer of PubMatic, Inc., reported several transactions on July 1st, 2nd, and 6th, 2026.
• On July 1st, 2026, 45,665 shares of Class A Common Stock were acquired at no cost, increasing the total beneficial ownership to 88,368 shares.
• On July 2nd, 2026, 23,548 shares were disposed of at a weighted average price of $13.6485, reducing beneficial ownership to 64,820 shares. These sales were to cover tax withholding obligations related to the vesting and settlement of Restricted Stock Units (RSUs).
• On July 6th, 2026, an additional 12,548 shares were disposed of at a weighted average price of $13.4154, further reducing beneficial ownership to 52,272 shares. These sales were executed under a Rule 10b5-1 trading plan adopted on May 28, 2025.
• Several Restricted Stock Units (RSUs) vested on July 1st, 2026, including 9,547, 8,955, 7,407, and 19,756 units, which represent rights to receive Class A Common Stock.
• The vesting of RSUs occurs quarterly, with a portion vesting each quarter thereafter, contingent on continued service to the issuer.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this filing as neutral. While there are significant share disposals, they are primarily attributed to tax obligations and a pre-established trading plan, which are common and expected insider activities.

Positives

• Vesting of Restricted Stock Units indicates continued employee engagement and potential future share ownership.
• The acquisition of 45,665 shares of Class A Common Stock at no cost on July 1st, 2026, represents an increase in the CFO's direct holdings.

Negatives

• The disposal of 23,548 shares on July 2nd and 12,548 shares on July 6th represents a reduction in the CFO's direct holdings.
• Sales were made to cover tax withholding obligations, which is a common but still a reduction in direct share ownership.

Risks

• The Rule 10b5-1 trading plan indicates a pre-determined strategy for selling shares, which could be influenced by market conditions or personal financial needs.
• The ongoing vesting and potential sale of RSUs could lead to continued dilution of existing shareholders if shares are issued to cover these awards.

Future Outlook

The filing indicates ongoing quarterly vesting of Restricted Stock Units, suggesting continued equity-based compensation for management. The Rule 10b5-1 plan suggests a structured approach to future share sales.

Industry Context

StockSavvy.ai notes that insider transactions, particularly sales by C-suite executives, are closely watched by the market. While these sales are often for personal reasons like tax obligations or diversification, they can sometimes be interpreted as a signal of management's confidence in the company's future prospects. The use of a Rule 10b5-1 plan is a standard practice to mitigate concerns about insider trading.

Stakeholder Impact

• Shareholders: The sale of shares by the CFO may lead to a slight increase in the float of Class A Common Stock. The use of a Rule 10b5-1 plan aims to minimize market impact.
• Employees: The vesting of RSUs for the CFO and potentially other employees reinforces equity-based compensation as a retention and incentive tool.
• Management: The transactions reflect standard financial planning and compliance for executive compensation.

Next Steps

• Continued quarterly vesting of Restricted Stock Units.
• Potential future sales of Class A Common Stock under the Rule 10b5-1 trading plan.

Key Dates

Keywords

PubMatic, PUBM, Form 4, Insider Trading, Steven Pantelick, Chief Financial Officer, Class A Common Stock, Restricted Stock Units, RSU Vesting, Stock Sale, Tax Withholding, Rule 10b5-1, Beneficial Ownership