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CIK 0002139097 · <br>Emerging growth company

TRex Bio, Inc.

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Ticker
TRXB
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
FY end
Dec 31
Incorporated
DE
Entity type
other
Phone
(650) 567-5582
Business address
C/O TREX BIO, INC., 269 EAST GRAND AVENUE SUITE 300, SOUTH SAN FRANCISCO, CA
Open-market buys, last 90 days
$3,799,992
in 2 filings
Open-market sales, last 90 days
$0
in 0 filings

Net +$3,799,992. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Alexandria Venture Investments, LLC +$2.5M 10% owner 1 filing
  2. SVLSF VI, LLC +$1.3M 10% owner 1 filing
Date Insider Transaction Shares Price Value Owned after
2026-10-13 Alexandria Venture Investments, LLC 10% owner Conversion +1,167,930 1,167,930
2026-10-13 Alexandria Venture Investments, LLC 10% owner Purchase +178,571 $14.00 $2.5M 1,346,501
2026-10-13 Alexandria Venture Investments, LLC 10% owner Conversion · Series A-3 Preferred Stock −1,033,541 0
2026-10-13 Alexandria Venture Investments, LLC 10% owner Conversion · Series B Preferred Stock −3,480,387 0
2026-10-13 SVLSF VI, LLC 10% owner Conversion +1,574,074 1,788,943
2026-10-13 SVLSF VI, LLC 10% owner Conversion +475,411 2,264,354
2026-10-13 SVLSF VI, LLC 10% owner Conversion +53,892 61,248
2026-10-13 SVLSF VI, LLC 10% owner Conversion +16,277 77,525
2026-10-13 SVLSF VI, LLC 10% owner Conversion +669,939 669,939
2026-10-13 SVLSF VI, LLC 10% owner Conversion · Series A Preferred Stock −1,574,074 0
2026-10-13 SVLSF VI, LLC 10% owner Conversion · Series B Preferred Stock −475,411 0
2026-10-13 SVLSF VI, LLC 10% owner Conversion · Series A Preferred Stock −53,892 0
2026-10-13 SVLSF VI, LLC 10% owner Conversion · Series B Preferred Stock −16,277 0
2026-10-13 SVLSF VI, LLC 10% owner Conversion · Series B Preferred Stock −669,939 0
2026-10-13 MARCUS JOEL S Director Conversion +41,871 41,871
2026-10-13 MARCUS JOEL S Director Conversion · Series B Convertible Preferred Stock −161,828 0
2026-10-08 SVLSF VI, LLC 10% owner Purchase +89,783 $14.00 $1.3M 214,869
2026-10-08 SVLSF VI, LLC 10% owner Purchase +3,074 $14.00 $43K 7,356
2026-10-08 MARCUS JOEL S Director Grant or award · Stock Option (Right to Buy) +17,500 17,500
2026-10-08 Coy Travis Alan Director Grant or award · Stock Option (Right to Buy) +17,500 17,500

Page 1 of 2 · 24 trades