Form 4: Seaport Global Asset Management Reduces STAI Stake

Seaport Global Asset Management LLC, a 10% owner and director of ScanTech AI Systems Inc., reported the sale of 3,100 shares of common stock under a Rule 10b5-1 plan.

Summary

• Seaport Global Asset Management LLC, identified as a Director and 10% Owner of ScanTech AI Systems Inc. (STAI), reported transactions involving the company's common stock.
• On December 16, 2025, 3,000 shares of common stock, par value $0.0001 per share, were disposed of at a price of $4.2933 per share.
• On December 17, 2025, an additional 100 shares of common stock were disposed of at a price of $3.80 per share.
• These transactions were made pursuant to a contract, instruction, or written plan for the purchase or sale of equity securities of the issuer, intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
• Following these reported transactions, Seaport Global Asset Management LLC indirectly beneficially owns 804,867 shares of ScanTech AI Systems Inc. common stock.
• The shares are held directly by Seaport Group SIBS LLC, which is managed by Seaport Global Asset Management LLC.

Sentiment

Score: 5

Explanation: The sale of a small number of shares (approximately 0.38% of total holdings) by a 10% owner and director, executed under a pre-arranged Rule 10b5-1 plan, is a routine event. While any insider sale can be viewed with caution, the context suggests it is not a strong negative signal regarding the company's future prospects.

Negatives

• A 10% owner and director, Seaport Global Asset Management LLC, reduced its beneficial ownership in ScanTech AI Systems Inc. by 3,100 shares, which could be perceived as a slight decrease in insider confidence, although mitigated by the 10b5-1 plan.

Future Outlook

NA

Industry Context

NA

Related Party Transactions

• Shares are held indirectly by Seaport Global Asset Management LLC through Seaport Group SIBS LLC, which it manages.

Stakeholder Impact

• Shareholders may interpret the insider sale as a signal regarding the company's future prospects, potentially leading to minor negative sentiment or increased selling pressure on the stock.
• The reduction in beneficial ownership by a 10% owner and director, even if small and pre-planned, could be seen as a slight decrease in alignment between this large shareholder/director and other investors.

Key Dates

Recommendation

The reported insider sales are minor in scale relative to the total beneficial ownership and were conducted under a Rule 10b5-1 plan, indicating a pre-scheduled transaction rather than a discretionary sale based on new information. This filing alone does not provide sufficient new information to warrant a change from a 'hold' position, as it does not strongly suggest a significant shift in the company's fundamentals or outlook.

Keywords

ScanTech AI Systems, STAI, Seaport Global Asset Management, Insider Sale, Form 4, Stock Transaction, 10b5-1 Plan, Beneficial Ownership