TRex Bio ($TRXB) Insider Trading & Smart Money Activity

TRex Bio, Inc. · Biotechnology · Latest filing Oct 13, 2026

TRex Bio, Inc. ($TRXB) has 2 insider trades on file. In the last 12 months on the open market, 2 insiders bought ($3.80M) and no insider sold, net +$3.80M.

Insider buyers (12 mo): 2
Insider sellers (12 mo): 0
Net insider $ (12 mo): +$3.80M
Congress trades (12 mo): 0
13F moves on file: 0
Analyst ratings on file: 0

TRXB insider buying and selling by quarter

Quarter	Insider buys	Congress buys / sales	13F added / cut
Q1 2026	0	0 / 0	0 / 0
Q2 2026	0	0 / 0	0 / 0
Q3 2026	0	0 / 0	0 / 0
Q4 2026	2 · $3.80M	0 / 0	0 / 0

Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.

All TRXB insider, congress, 13F and analyst activity

Date	Source	Who	Action	Shares	Value / amount	ΔOwn	1W	1M	6M	Filing	Story
Oct 13, 2026	Insider	Alexandria Venture Investments, LLC10% Owner	Buy (Open-market buy)	178.57K sh	$2.50M						Read
Oct 8, 2026	Insider	LLC Svlsf Vi10% Owner	Buy (Open-market buy)	92.86K sh	$1.30M						—

1W / 1M / 6M = how TRXB moved from the trade or filing date.

Insider trading in TRXB: who is buying and selling

Insider	Role	Trades	Open-market net	Shares held	Last trade
Alexandria Venture Investments, LLC	10% Owner	1	+$2.50M		Oct 13, 2026
LLC Svlsf Vi	10% Owner	1	+$1.30M		Oct 8, 2026

Frequently asked questions

Are TRXB insiders buying or selling?

Over the last 12 months 2 insiders made 2 open-market purchases worth $3.80M and 0 insiders made 0 open-market sales worth $0, a net +$3.80M.

What is the latest insider trade in TRXB?

Alexandria Venture Investments, LLC, 10% Owner filed a buy (open-market buy) of 178.57K sh worth $2.50M on Oct 13, 2026.

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Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.

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