LYTIR

Company · TRXB

TRex Bio, Inc.

Nasdaq's symbol directory lists TRXB on Nasdaq as “TRex Bio, Inc. - Common stock”.

In the 12 months to Nov 8, 2026: insiders bought on 2 occasions ($3.8M); 4 filings by holders of 5% or more; 1 company report (Form 8-K, since May 26, 2026).

All insider filings at the SEC · Appeared in No. 29, No. 28, No. 27, No. 26, No. 25, No. 24, No. 23, No. 22

Insider trades · SEC Form 4

Those inside the hall

Open-market purchases and sales only. Legs one person filed for one day are combined.

Who traded

  1. Alexandria Venture Investments, LLC bought on 1 day latest Oct 13, 2026 bought $2.5M
  2. SVLSF VI, LLC bought on 1 day latest Oct 8, 2026 bought $1.3M
Every trade (2)
  1. BUYAlexandria Venture Investments, LLC bought Oct 13, 2026 178,571 shares filing $2.5M
  2. BUYSVLSF VI, LLC bought Oct 8, 2026 92,857 shares 2 legs combined filing $1.3M

Large holders · SEC Schedules 13D and 13G

Five percent and over

Anyone who comes to hold more than 5% of a company's voting shares must tell the SEC. A Schedule 13D is filed by a holder who may seek to influence the company; a 13G by one who states it is a passive investor. An amendment updates an earlier filing, and a stake reported as 0% means the holder says it has sold all, or nearly all, of its shares. Every recent 13D and 13G

  1. ELI LILLY & Co filed Oct 16, 2026 Schedule 13D may seek influence 5,480,872 shares filing 19.9%
  2. PFIZER INC. (13-5315170) filed Oct 16, 2026 Schedule 13G passive filing 7.2%
  3. SV Biotech Crossover Opportunities Fund LP filed Oct 16, 2026 Schedule 13D may seek influence 1,920,667 shares filing 7%
  4. Johnson & Johnson Innovation - JJDC, Inc. filed Oct 15, 2026 Schedule 13G passive filing 5.3%

Company reports · SEC Form 8-K

In its own words

Current reports the company filed with the SEC; most items are due within four business days of the event. Each line lists the report's items by the SEC's own titles; the filing says what happened. Reports collected since May 26, 2026; every 8-K at the SEC.

  1. Amendments to articles or bylaws; change in fiscal year filing Oct 13, 2026

Sources: SEC EDGAR (Forms 4, 144 and 8-K) and STOCK Act periodic transaction reports. Filings can be late, amended or wrong at the source; see methodology.