Form 4: SERA CSO Sells Shares for Tax Obligations

SERA PROGNOSTICS' Chief Scientific Officer, John J. Boniface, sold 7,767 shares of Class A Common Stock to cover tax withholding obligations from RSU vesting.

Summary

• John J. Boniface, Chief Scientific Officer of SERA PROGNOSTICS, INC. (SERA), reported a transaction involving Class A Common Stock.
• On November 10, 2025, Boniface sold 7,767 shares of Class A Common Stock.
• The shares were sold at a weighted average price of $2.62 per share, with individual transaction prices ranging from $2.30 to $3.04.
• The sale was explicitly stated as non-discretionary, mandated by the Issuer to cover tax withholding obligations associated with the vesting of restricted stock units (RSUs).
• Following this transaction, Boniface beneficially owns 151,726 shares of Class A Common Stock directly.

Sentiment

Score: 5

Explanation: The transaction is a non-discretionary 'sell to cover' for tax withholding purposes, which is a routine event for executives receiving equity compensation. It does not reflect a discretionary investment decision by the insider and is therefore neutral in terms of sentiment regarding the company's future prospects.

Future Outlook

NA

Industry Context

This filing details a routine insider transaction related to executive compensation and tax obligations, which is common across various industries for publicly traded companies with equity compensation plans. It does not provide specific insights into broader industry trends for SERA PROGNOSTICS.

Stakeholder Impact

• Shareholders: The sale is a routine, non-discretionary event for tax purposes and is unlikely to have a significant impact on shareholder perception or the company's stock price.
• Employees: The transaction reflects standard equity compensation practices for executives.

Key Dates

Keywords

SERA PROGNOSTICS, SERA, Form 4, Insider Trading, Stock Sale, Tax Withholding, RSU Vesting, Chief Scientific Officer, John J. Boniface