Insider Buying: TRex Bio (NASDAQ:TRXB) Major Shareholder Buys $2,499,994.00 in Stock October 16, 2026 by InsiderTrades.com Share Key Points Alexandria Venture Investments, a major TRex Bio shareholder, purchased 178,571 shares at $14.00 each, investing approximately $2.5 million. The transaction increased Alexandria Venture Investments’ holdings by 15.29% to 1,346,501 shares, valued at roughly $18.85 million, according to an SEC filing. TRex Bio shares opened at $14.16, within their 52-week range of $13.21 to $15.50. The clinical-stage biotechnology company develops medicines focused on tissue regulatory T cells for autoimmune and inflammatory diseases. TRex Bio, Inc. (NASDAQ:TRXB - Get Free Report) major shareholder Alexandria Venture Investments purchased 178,571 shares of TRex Bio stock in a transaction dated Tuesday, October 13th. The shares were bought at an average price of $14.00 per share, with a total value of $2,499,994.00. Following the completion of the transaction, the insider owned 1,346,501 shares in the company, valued at approximately $18,851,014. This trade represents a 15.29% increase in their position. The transaction was disclosed in a document filed with the SEC, which is available through this hyperlink. Major shareholders that own more than 10% of a company's stock are required to disclose their sales and purchases with the SEC.TRex Bio Stock PerformanceNASDAQ:TRXB opened at $14.16 on Friday. TRex Bio, Inc. has a 52-week low of $13.21 and a 52-week high of $15.50. About TRex Bio (Get Free Report)We are a clinical-stage biopharmaceutical company focused on tissue Treg biology for the discovery and development of immunoregulatory medicines designed to restore immune balance and promote tissue repair to address unmet needs of patients with autoimmune and inflammatory diseases. TRexBio was built on a pivotal scientific insight: that regulatory T cells (“Tregs”) in human tissue are not merely passive suppressors of inflammation, but active orchestrators of tissue immune homeostasis and repair.Featured ArticlesFive stocks we like better than TRex BioASML Can’t Keep Up With AI Demand—Why That's a Good ThingEnovix's 100,000-Battery Drone Order Sets Up a Test of Its Production PlansAMD's Support Could Help Fermi Stock Overcome Its Biggest HurdleBeyond the GPU: Credo Paves the Next AI Data SuperhighwayThis instant news alert was generated by narrative science technology and financial data from InsiderTrades.com in order to provide readers with the fastest and most accurate reporting. Please send any questions or comments about this story to [email protected]. Insider Buying or Selling at TRex Bio? Sign-up to receive InsiderTrades.com's daily insider buying and selling report for TRex Bio and related companies. 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