Form 4: Ouster CTO Executes Stock Option Exercise and Sale

Ouster, Inc. Chief Technology Officer Mark Frichtl exercised options and sold 34,600 shares of common stock under a Rule 10b5-1 plan.

Summary

• Mark Frichtl, Chief Technology Officer of Ouster, Inc., exercised options for 34,600 shares of common stock at a strike price of $2.13.
• Following the exercise, the reporting person sold the 34,600 shares in two separate transactions on May 4 and May 5, 2026.
• The sales were executed at weighted average prices of $30.1272 and $30.00 per share, respectively.
• All transactions were conducted pursuant to a Rule 10b5-1 trading plan established on December 15, 2025.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event, as the transactions were executed under a pre-existing Rule 10b5-1 plan, which is a routine mechanism for executive compensation and liquidity.

Positives

• The transactions were pre-planned under a Rule 10b5-1 trading plan, indicating the sales were not based on non-public information.
• The exercise of options demonstrates the executive's continued participation in the company's equity incentive programs.

Negatives

• The reporting person reduced their direct beneficial ownership of Ouster, Inc. common stock through these sales.

Risks

• Future sales of company stock by insiders may occur as part of the established Rule 10b5-1 trading plan.

Future Outlook

No specific forward-looking guidance regarding company operations was provided in this filing.

Industry Context

StockSavvy.ai notes that insider selling via Rule 10b5-1 plans is a standard practice for executives to manage personal liquidity and is generally viewed as neutral by the market when pre-arranged.

Comparison to Industry Standards

• The use of Rule 10b5-1 plans is the industry standard for corporate executives to avoid potential conflicts of interest regarding insider trading regulations.

Stakeholder Impact

• Shareholders should note the reduction in insider holdings, though the pre-planned nature mitigates concerns regarding negative sentiment.

Next Steps

• Continued monitoring of future Form 4 filings for additional transactions under the established 10b5-1 plan.

Key Dates

Keywords

Ouster, OUST, Form 4, Insider Trading, Stock Option Exercise, Chief Technology Officer, Rule 10b5-1