SCHEDULE: American Century Boosts MarineMax Stake to 9.9%

American Century Investment Management, Inc. and its affiliates have reported a beneficial ownership of 9.9% of MarineMax, Inc.'s common stock as of December 31, 2025.

Summary

• American Century Investment Management, Inc. reported beneficial ownership of 2,165,158 shares of MarineMax, Inc. common stock, representing 9.9% of the class.
• American Century Capital Portfolios, Inc. reported beneficial ownership of 1,324,505 shares, representing 6.1% of the class.
• American Century Companies, Inc. and Stowers Institute for Medical Research also reported beneficial ownership of 2,165,158 shares, or 9.9% of the class, reflecting their control relationship over American Century Investment Management, Inc.
• The filing is an Amendment No. 7 to a Schedule 13G, indicating an update to previously reported ownership.
• The securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of MarineMax, Inc.

Sentiment

Score: 6

Explanation: The filing indicates a significant increase in institutional ownership by a reputable investment firm, which is generally viewed as a positive signal of confidence in the company's prospects, although it does not provide operational or financial performance details.

Positives

• Increased institutional ownership by American Century Investment Management, Inc. and its affiliates, now holding 9.9% of MarineMax, Inc. common stock, signals confidence in the company.
• The investment is stated to be for ordinary course of business and not for influencing control, suggesting a passive, long-term investment perspective from a major institutional investor.

Risks

• Since this is a Schedule 13G filing, it primarily discloses beneficial ownership and does not contain information regarding the issuer's operational or financial risks.

Future Outlook

This filing is a disclosure of beneficial ownership and does not contain forward-looking statements or guidance from MarineMax, Inc. or the reporting persons regarding the issuer's future performance.

Industry Context

Institutional investors like American Century often take significant stakes in companies they believe have strong fundamentals or growth potential, aligning with broader trends of active portfolio management in specific sectors. This particular filing indicates a notable institutional position in the recreational boating and yachting industry, where MarineMax operates.

Comparison to Industry Standards

• This type of filing (Schedule 13G) does not provide data for direct comparison to industry-specific operational or financial benchmarks. It solely reports beneficial ownership.

Stakeholder Impact

• Shareholders may view the increased institutional ownership as a positive indicator of confidence in MarineMax, Inc.'s long-term value, potentially influencing market perception and share price.

Key Dates

Recommendation

The filing indicates a significant institutional stake by American Century, a reputable investment firm. While this suggests a vote of confidence, a Schedule 13G does not provide sufficient financial or operational details to warrant a 'buy' or 'sell' recommendation. Therefore, a 'hold' is appropriate, acknowledging the positive signal of institutional interest without further fundamental analysis.

Keywords

MarineMax, American Century, Beneficial Ownership, Institutional Investment, Common Stock, Schedule 13G, Investment Management