SCHEDULE: Sinaptic Holdings Discloses 7.2% Stake in Sintx Tech

Sinaptic Holdings, LLC has reported a 7.2% beneficial ownership stake in Sintx Technologies, Inc., comprising common stock and vested warrants.

Summary

• Sinaptic Holdings, LLC beneficially owns 281,450 shares of Sintx Technologies, Inc. Common Stock, representing 7.2% of the class.
• The ownership consists of 216,450 shares of common stock and 65,000 shares issuable upon the exercise of vested warrants.
• An additional 260,000 unvested warrants are held, which are subject to performance-based vesting goals over a four-year period starting July 1, 2025, and are not currently included in the beneficial ownership calculation.
• The transfer of all shares and warrants from Sinaptic Surgical, LLC to Sinaptic Holdings, LLC occurred on July 10, 2025.
• Sinaptic Surgical, LLC is no longer a reporting person for Sintx Technologies, Inc. securities.
• The percentage ownership is based on an aggregate of 3,916,956 shares of Common Stock outstanding, which includes 3,851,956 shares reported as of November 7, 2025, plus the 65,000 shares from vested warrants.

Sentiment

Score: 5

Explanation: The filing is a factual disclosure of beneficial ownership and does not contain information that is inherently positive or negative regarding the operational performance or financial health of Sintx Technologies, Inc. It reflects a change in the ownership structure of a significant investor.

Positives

• A significant beneficial ownership stake by Sinaptic Holdings, LLC could be interpreted as a vote of confidence in Sintx Technologies, Inc. by a substantial investor.

Negatives

• The 260,000 unvested warrants are subject to performance-based vesting goals that have not yet been achieved, introducing uncertainty regarding their future conversion.

Risks

• The vesting of 260,000 unvested warrants is contingent upon the achievement of certain performance goals over a four-year period starting July 1, 2025, and may not occur.
• A provision limits the holder's ability to exercise warrants if such exercise would cause beneficial ownership to exceed 19.99% of the Issuer, potentially restricting full conversion even if performance goals are met.

Future Outlook

The future beneficial ownership of Sinaptic Holdings, LLC could increase by up to 260,000 shares if the unvested warrants achieve their performance-based vesting goals over the four-year period starting July 1, 2025. However, the vesting is uncertain and subject to a 19.99% ownership limitation.

Management Comments

• Hugh Roberts, President and Manager of Sinaptic Holdings, LLC, certified that the securities were not acquired or held for the purpose of changing or influencing control of the issuer, other than activities solely in connection with a nomination under Rule 14a-11.

Industry Context

This filing is a routine disclosure of a significant passive investment stake, common in the public markets. It does not provide specific operational or strategic insights into Sintx Technologies, Inc.'s industry position or performance, but rather details a change in its ownership structure.

Related Party Transactions

• On July 10, 2025, Sinaptic Surgical, LLC transferred all of its shares of Common Stock and all of its Warrants to Sinaptic Holdings, LLC, its sole member and manager at the time of the transfer. This is an internal transfer between related entities.

Stakeholder Impact

• Shareholders of Sintx Technologies, Inc. may view the disclosure of a significant beneficial owner as a positive signal, potentially indicating investor confidence.
• The existence of unvested warrants could introduce future dilution if they vest, impacting existing shareholders' percentage ownership.

Next Steps

• Monitoring the achievement of performance goals for the 260,000 unvested warrants held by Sinaptic Holdings, LLC, which could lead to an increase in their beneficial ownership in Sintx Technologies, Inc.

Key Dates

Keywords

Sintx Technologies, Sinaptic Holdings, Beneficial Ownership, Schedule 13G, Common Stock, Warrants, SEC Filing, Institutional Investor