TRXB

TRex Bio, Inc.

Nasdaq· CIK 0002139097

$13.87 +0.06 (+0.43%)

Oct 26 4:00 PM ET · prev $13.81

Market cap

$425.4M

Small cap

Since first trade

−0.9%

from $14.00 · Oct 9

30 days

−0.9%

from $14.00

Range since listing

$13.50–15.50

−11% from high · low Oct 14

Avg volume 12D

217.3K

Oct 9 spike 1.26M

Short interest

🔒 Subscribers only

Insider net

+$3.8M

2 buyers · 0 sellers · 12 mo

Filing reports

analyzed by SecBot

SecBot read BULLISH 22 reports · 90 days

Balance 0 bearish · 3 bullish · 19 neutral oldest → newest, height = score

Avg score

·High conf. 18/22

Strongest BULLISH The SEC declared effective TRex Bio's S-1 registration statement for its initial public offering of…

All reports →

Price

Daily candles with volume. Pins mark insider trades, rating changes, 13F stakes, reports, catalysts and short-interest jumps.

R Oct 9 The SEC declared effective TRex Bio's S-1 registration statement for…
R Oct 9 Eli Lilly & Co. filed a Form 3 initial statement of beneficial owner…
B Oct 13 to Oct 13 2 days of insider buys: $3.8M by 2 insiders, avg $14.00
E Oct 13 Offering: TRexBio Announces Closing of Initial Public Offering

Signal stack

Where each data set points today.

InsidersBULLISH

2 insiders bought $3.8M at an average $14.00. No open-market sales.

Recent activity

The latest filings, insider trades, analyst actions, press and options flow — newest first.

Oct 16, 2026 SEC

Pfizer Inc. and its subsidiary Pfizer Ventures (US) LLC disclosed a 7.2% passive stake in TRex Bio, Inc. via a…

SC 13G — Impact 3/10

Oct 16, 2026 SEC

Eli Lilly disclosed a 19.9% beneficial ownership stake in TRex Bio, Inc. via a Schedule 13D filed October 16, 2026…

SC 13D — Impact 5/10

Oct 16, 2026 SEC

SV Biotech Crossover Opportunities Fund LP filed a Schedule 13D disclosing a 7.0% stake in TRex Bio, Inc. The fund…

SC 13D — Impact 5/10

Oct 13, 2026 Press

TRex Bio, Inc. closed its initial public offering of 8,333,334 shares at $14.00 per share, raising approximately…

Impact 5/10

Oct 13, 2026 Offering

TRexBio Announces Closing of Initial Public Offering

TRexBio Announces Closing of Initial Public Offering ...

Oct 13, 2026 Insider

MARCUS JOEL S acquired 41,871 shares

Director

Oct 13, 2026 Insider

MARCUS JOEL S disposed of 161,828 shares

Director

Oct 13, 2026 Insider

SVLSF VI, LLC disposed of 1,574,074 shares

10%+ Owner

Insider ledger

Form 4

$3.8M

bought · 2 insiders

sold · 0 insiders

−0.9%

vs their $14.00 cost

Date	Insider	Type	Value
Oct 13, 2026	MARCUS JOEL S Director	CONVERT	41,871 sh
Oct 13, 2026	MARCUS JOEL S Director	CONVERT	161,828 sh
Oct 13, 2026	SVLSF VI, LLC 10%+ Owner	CONVERT	1,574,074 sh
Oct 13, 2026	SVLSF VI, LLC 10%+ Owner	CONVERT	53,892 sh
Oct 13, 2026	SVLSF VI, LLC 10%+ Owner	CONVERT	669,939 sh
Oct 13, 2026	SVLSF VI, LLC 10%+ Owner	CONVERT	16,277 sh
Oct 13, 2026	SVLSF VI, LLC 10%+ Owner	CONVERT	16,277 sh
Oct 13, 2026	SVLSF VI, LLC 10%+ Owner	CONVERT	1,574,074 sh