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TRXB · TRex Bio, Inc.

Everything on this page is public record — SEC Form 4 filings and congressional disclosures — alongside any INSIDER SCANNER research case for this company.

Open-market buys3
Open-market sells0
Total purchased$3,799,992
Unique insiders buying2
Avg price paid$14.00
Research cases0
Last filing2026-10-13

Average price paid is weighted by shares, so a large purchase counts for more than a small one. It is what insiders reported paying, not a target or a fair value.

Insider flow: Buying only — a count of disclosed transactions, not a rating or a recommendation.

Insider transaction timeline

Every reported transaction, positioned by trade date. Purchases sit above the axis, sales below; circle area is proportional to dollar value. No share-price line is drawn — this feed carries transaction prices only, and a price history inferred from them would imply market data the filings do not contain.

Open-market purchase Open-market sale
2026-10-08 — SVLSF VI, LLC · bought 89,783 @ $14.00 2026-10-08 — SVLSF VI, LLC · bought 3,074 @ $14.00 2026-10-13 — Alexandria Venture Investments, LLC · bought 178,571 @ $14.00
2026-10-082026-10-13

Insider cost basis

Share-weighted average price across 3 reported purchases, with the full range of prices paid. Purchases only — averaging a sale into an "insider cost" would describe a price nobody paid.

$14.00 $14.00
$14.00 weighted average insider purchase price

Insider participation

One row per insider, one cell per reported transaction, shaded by value. Repeat buying and activity clustered in time are visible at a glance.

SVLSF VI, LLC 10% owner
Alexandria Venture Investments, LLC 10% owner
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The analysis built on top of these filings

The filings above are public record and stay public here. What an account adds for $TRXB is the reading of them — and for this company, that is what the list below says it is, no more.

  • Insider cost basisShare-weighted average price paid across the 3 reported purchases, with the full range, against the current price.
  • Insider participationWho bought, how often, and how the buying is distributed across the people filing — one person repeating is not several agreeing.
  • Transaction timelineThe [{'transaction_date': '2026-10-13', 'insider_name': 'Alexandria Venture Investments, LLC', 'insider_title': '10% owner', 'transaction_type': 'Open-market buy', 'shares': 178571.0, 'price': 14.0, 'value': 2499994.0, 'is_buy': True}, {'transaction_date': '2026-10-08', 'insider_name': 'SVLSF VI, LLC', 'insider_title': '10% owner', 'transaction_type': 'Open-market buy', 'shares': 89783.0, 'price': 14.0, 'value': 1256962.0, 'is_buy': True}, {'transaction_date': '2026-10-08', 'insider_name': 'SVLSF VI, LLC', 'insider_title': '10% owner', 'transaction_type': 'Open-market buy', 'shares': 3074.0, 'price': 14.0, 'value': 43036.0, 'is_buy': True}] reported transactions plotted over the window rather than listed, so concentration is visible.

Not available for TRXB today: no research case — nothing here has cleared the scoring threshold. Both appear on this page on their own if that changes.

A free account opens all of it.

Not financial advice. This page reports public filings and past research output. It is not a recommendation to buy or sell, and no price target here is a prediction. Trade at your own risk.