Trex Bio
TRXB · NASDAQ · Health Care · Biological Products, (No Diagnostic Substances)
Biological Products, (No Diagnostic Substances) company based in South San Francisco, CA. Listed, but no annual report (10-K) filed yet under this SEC registration.
As of Oct 20, 2026, OQRO holds for Trex Bio (TRXB) over the last 12 months: 24 insider filings, 0 Congress trades, 4 fund positions and 0 federal contract awards. Most recent on file: 10% owner purchased ~$2.5M of TRXB shares in the open market, traded Oct 13, 2026, filed Oct 15, 2026.
Last 30 days
Written by software from the filings listed below · Oct 19, 2026
- Insiders. In the 30 days to Oct 19, 2026, insiders of Trex Bio filed 3 open-market purchases (about $3.8M, in 2 filings, by 2 people) and 0 open-market sales (about $0, in 0 filings, by 0 people). One Form 4 can list many transactions. In the 30 days before that, they filed 0 open-market purchases (about $0, in 0 filings) and 0 open-market sales (about $0, in 0 filings). (Trex Bio on OQRO)
- Funds and stakes. ELI LILLY & Co disclosed a 19.9% stake in TRXB (filed Oct 16, 2026). SV Biotech Crossover Opportunities Fund LP disclosed a 7% stake in TRXB (filed Oct 16, 2026).
- Company reports, price and press. Trex Bio filed a Form 8-K on Oct 13, 2026 (Item 5.03) that OQRO classes as: changed its bylaws, charter or fiscal year. Press coverage listed by Finnhub: "Eli Lilly Takes 19.9% Stake In TRex Bio With 5.48M Shares, Investing $12.3M In IPO" (Benzinga, Oct 16, 2026).
- Things to keep in mind. These are counts of the filings OQRO holds, in the days they were filed; a busy or quiet month does not say why. A Form 4 reports a transaction; it does not say why it was made, and some follow trading windows or pre-arranged plans. Congress reports give only amount ranges and arrive after the trade. An 8-K item says what the company reported, not what it means for the share price.
Facts used for this text
Every number, name, date and link in the text above comes from this list; software checks that before the text is stored. This text was assembled directly from the facts, without a language model.
Insiders
- In the 30 days to Oct 19, 2026, insiders of Trex Bio filed 3 open-market purchases (about $3.8M, in 2 filings, by 2 people) and 0 open-market sales (about $0, in 0 filings, by 0 people). One Form 4 can list many transactions.
- In the 30 days before that, they filed 0 open-market purchases (about $0, in 0 filings) and 0 open-market sales (about $0, in 0 filings).
- The largest purchase: Alexandria Venture Investments, LLC, 10% owner, about $2.5M, filed Oct 15, 2026.
Funds and stakes
- ELI LILLY & Co disclosed a 19.9% stake in TRXB (filed Oct 16, 2026).
- SV Biotech Crossover Opportunities Fund LP disclosed a 7% stake in TRXB (filed Oct 16, 2026).
Company reports, price and press
- Trex Bio filed a Form 8-K on Oct 13, 2026 (Item 5.03) that OQRO classes as: changed its bylaws, charter or fiscal year.
- Press coverage listed by Finnhub: "Eli Lilly Takes 19.9% Stake In TRex Bio With 5.48M Shares, Investing $12.3M In IPO" (Benzinga, Oct 16, 2026).
- Press coverage listed by Finnhub: "TRexBio Announces Closing of Initial Public Offering" (Yahoo, Oct 13, 2026).
- Press coverage listed by Finnhub: "TRexBio Announces Pricing of Initial Public Offering" (Yahoo, Oct 9, 2026).
- TRXB closed at $14.01 on Oct 16, 2026, the last session on or before the end of the period.
- From Oct 9, 2026 to Oct 16, 2026, the close moved from $14.00 to $14.01, a change of +0.1%.
Things to keep in mind
- These are counts of the filings OQRO holds, in the days they were filed; a busy or quiet month does not say why.
- A Form 4 reports a transaction; it does not say why it was made, and some follow trading windows or pre-arranged plans. Congress reports give only amount ranges and arrive after the trade.
- An 8-K item says what the company reported, not what it means for the share price.
- Headlines are listed as published by the outlets; OQRO has not checked them and does not summarise articles.
- Share price moves are listed as context only; the filing does not explain them and other news can move a price.
- This describes public filings. It is not investment advice.
Example public filing
10% owner bought ~$2.5M
Alexandria Venture Investments, 10% owner at Trex Bio, bought ~$2.5M of Trex Bio shares.
- ~$2.5M
- Approx. value · 179K sh @ $14.00
- 1.35M
- Holds after · shares reported
- Traded
- Oct 13, 2026
- Filed
- Oct 15, 2026
Data as of Oct 20, 2026. A real record from the official source, chosen as the most recent insider trade or, failing that, the most recent filing of another kind; not a recommendation.
On file for TRXB, last 12 months
- 24
- Insider filings
- 0
- Congress trades
- 4
- Fund positions
- 0
- Federal contracts
Records OQRO holds, counted by their date; a 13F position is counted once per quarter it is reported.
Insider buying and selling since 2026
Insiders of Trex Bio reported 3 open-market purchases and 0 sales since 2026; purchases in 2026.
| Year | Bought | Sold |
|---|---|---|
| 2026 | 3×3 trades | — |
Open-market purchases (code P) and sales (code S) on Forms 4 and 5. Up to Sep 2024 from the SEC's Insider Transactions Data Sets; since Oct 2024 from each filing as it is published. A trade filed twice (an amendment) counts once. The amounts, the people and every filing are in OQRO Pro.
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What this page holds
- Insider trades and planned sales
- Politician trades (House and Senate)
- Fund holdings from 13F filings
- Federal contracts, lobbying and short selling
- Full history and context, with a link to every filing
What OQRO is
OQRO reads the public record for US-listed companies — insider trades filed with the SEC, stock trades disclosed by members of Congress, fund holdings from 13F filings, and federal contract awards — and puts each one in plain words next to the filing it came from. It describes what was disclosed. It does not give investment advice or tell you what to buy.
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Questions about Trex Bio insider trading
Have Trex Bio insiders bought shares recently?
Yes. Insiders of Trex Bio (TRXB) filed 3 open-market purchases in the last 90 days; the latest was filed on Oct 15, 2026.
How often do Trex Bio insiders buy and sell shares?
Since 2026, Trex Bio insiders reported 3 open-market purchases and 0 sales on Forms 4 and 5, with purchases in 1 different year, most recently 2026.
Do members of Congress trade TRXB?
No trade in Trex Bio (TRXB) was disclosed by a member of Congress in the last 12 months.
Where does this data come from?
From official filings only: SEC Forms 4, 5 and 144 for insiders, House and Senate periodic transaction reports for Congress, SEC Form 13F for funds, Form 8-K for company events and USAspending for federal contracts. Every record on OQRO links to its source. It is public data, not investment advice.
Insiders who traded Trex Bio
Other Biological Products, (No Diagnostic Substances) companies
Trex Bio is in 1 disclosure basket
Baskets of the companies that insiders, members of Congress or funds recently reported buying, each held under a written rule.