Form 4: Sera Prognostics CDO Sells Shares for Tax Obligations

Sera Prognostics' Chief Data Officer, Paul Kearney, sold 1,271 shares of Class A Common Stock at a weighted average price of $3.13 to cover tax withholding obligations related to RSU vesting.

Summary

• Paul Kearney, Chief Data Officer of Sera Prognostics, Inc. (SERA), reported a transaction involving Class A Common Stock.
• On September 11, 2025, Mr. Kearney sold 1,271 shares of Class A Common Stock.
• The shares were sold at a weighted average price of $3.13 per share, with individual transactions ranging from $3.05 to $3.24.
• The sale was non-discretionary, mandated by the issuer to cover tax withholding obligations associated with the vesting of restricted stock units (RSUs).
• Following this transaction, Mr. Kearney beneficially owns 175,669 shares of Class A Common Stock.

Sentiment

Score: 5

Explanation: The transaction is a routine "sell to cover" for tax obligations upon RSU vesting, which is a non-discretionary event. While it reduces insider ownership, it is not indicative of a negative outlook or strategic shift by the executive.

Positives

• The transaction was non-discretionary, indicating it was not a voluntary sale by the officer to reduce exposure or for personal reasons beyond tax obligations.
• The officer continues to hold a significant number of shares (175,669), maintaining alignment with shareholder interests.

Negatives

• A reduction in direct insider ownership, even if for tax purposes, slightly decreases the total shares held by a key executive.

Future Outlook

NA

Management Comments

• The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

Industry Context

NA

Stakeholder Impact

• Shareholders: A minor reduction in direct insider ownership, but the executive retains a substantial holding, maintaining alignment. The non-discretionary nature of the sale mitigates concerns about insider selling.

Next Steps

• The reporting person will provide full information regarding the number of shares sold at each separate price upon request to the SEC staff, the issuer, or any security holder.

Key Dates

Recommendation

This Form 4 filing details a routine, non-discretionary "sell to cover" transaction by a Chief Data Officer to meet tax obligations from RSU vesting. It does not provide new information regarding the company's financial performance, strategic direction, or operational health that would warrant a change in investment thesis. The executive retains a significant stake, suggesting continued alignment. Therefore, the filing itself does not present a compelling reason to alter an existing investment position.

Keywords

Sera Prognostics, SERA, Paul Kearney, Chief Data Officer, Form 4, Insider Trading, Stock Sale, Restricted Stock Units, RSU Vesting, Tax Withholding, Equity Compensation