Form 4: Sera Prognostics CIO Harrison Sells Shares Under 10b5-1 Trading Plan

Robert Gardner Harrison, Chief Information Officer of Sera Prognostics, sold 3,874 shares of Class A Common Stock at an average price of $4.16 on March 7, 2025, under a pre-arranged 10b5-1 trading plan.

Summary

• On March 7, 2025, Robert Gardner Harrison, the Chief Information Officer of Sera Prognostics, sold 3,874 shares of Class A Common Stock.
• The sale was executed at a weighted average price of $4.16 per share.
• The transactions were carried out under a Rule 10b5-1 trading plan adopted on May 14, 2024.
• Following the reported transaction, Harrison directly owns 121,757 shares of Sera Prognostics.
• The shares were sold in multiple transactions at prices ranging from $4.02 to $4.33.

Sentiment

Score: 5

Explanation: The sentiment is neutral as the filing simply reports a sale of shares under a pre-existing 10b5-1 trading plan. It doesn't inherently indicate positive or negative sentiment about the company's prospects.

Industry Context

Form 4 filings are standard disclosures required by the SEC when company insiders (officers, directors, or those holding more than 10% of the company's shares) buy or sell the company's securities. These filings provide transparency into insider transactions and can be scrutinized by investors for insights into management's perspective on the company's valuation and future prospects. The use of a 10b5-1 trading plan suggests the insider's sales were pre-planned and not based on current, non-public information.

Stakeholder Impact

• The sale of shares by a company insider could be perceived negatively by some shareholders, potentially leading to a slight decrease in investor confidence.

Key Dates