StockCIK 2139097

TRex Bio, Inc. (TRXB): Insider Trades and Fund Holdings

In the past 12 months, TRex Bio, Inc. insiders reported 2 open-market purchases worth $3.80M and 0 sales worth $0.

2Insider buys, 12 months

$3.80MBought by insiders, 12 months

$0Sold by insiders, 12 months

0Tracked funds holding

Recent insider trades

Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 15, 2026.

Recent TRXB insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	Filing
Oct 15	Oct 13	Alexandria Venture Investments, LLC10% owner	10% owner	▲ BUY	178,571	14.00	$2.50M	+15%	Form 4 ↗
Oct 13	Oct 8	Svlsf Vi, LLC10% owner	10% owner (ind.)	▲ BUY	92,857	14.00	$1.30M	New	Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings

Insiders who traded in the past year

Insider	Role	Buys	Bought	Sells	Sold	Latest
Alexandria Venture Investments, LLC	10% owner	1	$2.50M	0	$0	Oct 15, 2026
Svlsf Vi, LLC	10% owner	1	$1.30M	0	$0	Oct 13, 2026

Reading these numbers

Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →