Form 4: Mainsail GP III, LLC Reports Transaction in Brilliant Earth Group, Inc. (BRLT)

Mainsail GP III, LLC, along with affiliated entities, reports the exchange and sale of Brilliant Earth Group, Inc. Class B and Class A common stock, respectively, under a pre-arranged Rule 10b5-1 plan.

Summary

• On March 13, 2025, Mainsail GP III, LLC and affiliated entities, including Mainsail Partners III, L.P., Mainsail Incentive Program, LLC, and Mainsail Co-Investors III, L.P., engaged in transactions involving Brilliant Earth Group, Inc. (BRLT) stock.
• These transactions included the exchange of 2,700 LLC Units and Class B common stock for Class A common stock.
• Additionally, 2,700 shares of Class A common stock were sold at a price of $1.8541 per share.
• The sale was executed pursuant to a Rule 10b5-1 plan.
• Following these transactions, Mainsail entities continue to beneficially own a significant amount of Class B common stock and associated LLC Units, totaling 31,898,071 shares.
• The reporting persons disclaim beneficial ownership of the reported securities except to the extent of their respective pecuniary interests therein.

Sentiment

Score: 6

Explanation: The sentiment is neutral. The document reports transactions that are part of a pre-planned strategy. There is no indication of significant positive or negative implications for the company.

Future Outlook

The document does not contain specific forward-looking statements beyond the ongoing execution of the Rule 10b5-1 plan.

Management Comments

• The reporting persons disclaim beneficial ownership of the reported securities except to the extent of their respective pecuniary interests therein.

Industry Context

This filing reflects routine transactions by significant shareholders and provides transparency into their holdings and trading activities. It is common for major shareholders, especially private equity firms, to utilize 10b5-1 plans to diversify their holdings over time.

Comparison to Industry Standards

• The use of a Rule 10b5-1 trading plan is a standard practice for corporate insiders and major shareholders to sell shares while avoiding accusations of insider trading.
• The reported transactions are similar to those seen by other private equity firms who take companies public and then gradually reduce their positions over time.
• The size of the transaction is relatively small compared to the overall holdings of Mainsail, suggesting a gradual diversification strategy rather than a complete exit.

Stakeholder Impact

• The sale of shares could have a minor impact on the stock price in the short term.
• The continued significant ownership by Mainsail entities suggests ongoing confidence in the company's long-term prospects.

Key Dates