SCHEDULE: Seaport Global Amends ScanTech AI Stake Post-Split

Seaport Global Asset Management and affiliates updated their beneficial ownership in ScanTech AI Systems Inc. to 21.3% following a one-for-twenty reverse stock split and minor share sales.

Summary

• Seaport Global Asset Management LLC, Seaport Group SIBS LLC, and Stephen C. Smith collectively beneficially own 804,867 shares of ScanTech AI Systems Inc. common stock.
• This ownership represents 21.3% of the company's common stock outstanding.
• The percentage is calculated based on 3,780,656 shares outstanding, which accounts for the one-for-twenty reverse stock split effected on December 16, 2025.
• Prior to the reverse stock split, 75,613,124 shares were outstanding as of December 11, 2025.
• Seaport Group SIBS LLC sold 3,000 shares at $4.2933 on December 16, 2025, and an additional 100 shares at $3.80 on December 17, 2025.

Sentiment

Score: 5

Explanation: The filing is neutral, primarily reporting a change in beneficial ownership percentage due to a reverse stock split and minor share sales. It doesn't provide new operational or financial performance data.

Positives

• The reporting group maintains a significant beneficial ownership stake of 21.3% in ScanTech AI Systems Inc., indicating continued substantial investment.

Negatives

• Seaport Group SIBS LLC engaged in minor sales totaling 3,100 shares on December 16 and 17, 2025, which could be interpreted as a slight reduction in their position or portfolio rebalancing.
• ScanTech AI Systems Inc. underwent a one-for-twenty reverse stock split, a corporate action often undertaken to boost share price or meet listing requirements, which can sometimes be viewed with caution by the market.

Risks

• The reverse stock split could potentially lead to reduced liquidity for ScanTech AI Systems Inc.'s shares or a perception of underlying operational challenges if not accompanied by strong fundamental performance.
• The minor sales by Seaport Group SIBS LLC, while small, could signal a lack of further accumulation by a significant shareholder.

Future Outlook

The filing does not contain specific forward-looking statements or guidance regarding the company's future performance or strategic direction, focusing instead on beneficial ownership changes.

Industry Context

The reverse stock split by ScanTech AI Systems Inc. could be a strategic move to increase its share price, potentially to meet exchange listing requirements or attract institutional investors. Such actions are common in industries where companies are seeking to improve their market perception or capital structure, especially in emerging technology sectors like AI where valuation metrics can be volatile.

Comparison to Industry Standards

• NA

Corporate Governance

Stakeholder Impact

• Shareholders: The reverse stock split will reduce the number of shares held by existing shareholders while proportionally increasing the price per share. The minor sales by Seaport Group SIBS LLC are unlikely to have a significant impact on other shareholders.
• Investors: The updated beneficial ownership percentage provides transparency regarding a significant institutional holder's stake post-split.

Next Steps

• The filing does not explicitly mention future actions or milestones by the company or the reporting persons, beyond the ongoing beneficial ownership of shares.

Key Dates

Recommendation

This Schedule 13D filing primarily updates beneficial ownership information following a reverse stock split and minor share sales by a significant holder. It does not provide new fundamental data or strategic shifts that would warrant a change in investment recommendation. The reverse stock split is a corporate action that can have mixed implications, and the minor sales are not indicative of a major change in the investor's long-term view. Therefore, a 'hold' recommendation is appropriate until further operational or financial updates are available.

Keywords

ScanTech AI Systems, Seaport Global Asset Management, Schedule 13D, Beneficial Ownership, Reverse Stock Split, Common Stock, Institutional Investor, Shareholder Stake