SCHEDULE: Jane Street Group Discloses 5.2% Stake in TSS, Inc.

Jane Street Group, LLC, along with its affiliates Jane Street Capital, LLC and Jane Street Global Trading, LLC, has reported beneficial ownership of 5.2% of TSS, Inc.'s common stock.

Summary

• Jane Street Group, LLC, and its affiliated entities Jane Street Capital, LLC and Jane Street Global Trading, LLC, have filed a Schedule 13G.
• This filing indicates their beneficial ownership of TSS, Inc. common stock.
• The total aggregate amount of shares beneficially owned by these entities is 1,466,261.00.
• This represents 5.2% of the class of securities.
• The reporting persons have shared voting power and shared disposition power over these shares.
• The filing date is May 26, 2026, which is the event date requiring the filing.
• The principal executive offices of TSS, Inc. are located at 110 E. Old Settlers Road, Suite 100, Round Rock, Texas, 78664.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral filing, as it is a standard disclosure of beneficial ownership by a financial institution and does not inherently signal positive or negative performance for the issuer.

Future Outlook

This filing does not contain forward-looking statements or guidance.

Industry Context

StockSavvy.ai notes that this Schedule 13G filing by Jane Street Group, a prominent market maker and quantitative trading firm, indicates a significant passive investment in TSS, Inc. Such filings often precede or follow changes in a company's shareholder base and can be monitored by investors for shifts in institutional interest.

Stakeholder Impact

• Shareholders: The filing provides transparency regarding a significant institutional holder, which may influence investor perception and trading activity.

Key Dates

Keywords

TSS, Inc., Jane Street Group, Schedule 13G, Beneficial Ownership, Common Stock, SEC Filing, Investment Holding