Trex Bio (TRXB)PFIZER INC. (13-5315170) now owns 7.2% of TRXB as a passive investor 7.2%

7.2%

Stake

1.97M

Shares owned

Stake as of

Oct 8, 2026

Filed

Oct 16, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Oct 8, 2026Insider · 1 personInsiders: 2 purchases (~$1.3M)

What came next

1. Oct 13, 2026Company filing · Form 8-K · Bylaws or charterChanged its bylaws, charter or fiscal year
2. Oct 13, 2026Insider10% owner purchased ~$2.5M of TRXB shares in the open market
3. Oct 15, 20265% stakeJohnson & Johnson Innovation - JJDC, Inc. reported a passive stake (13G) of 5.3%
4. Oct 16, 20265% stakeSV Biotech Crossover Opportunities Fund LP filed an activist stake (13D) of 7.0%
5. Oct 16, 20265% stakeELI LILLY & Co filed an activist stake (13D) of 19.9%
6. Oct 16, 20265% stakePFIZER INC. (13-5315170) reported a passive stake (13G) of 7.2%

How to read SEC Schedule 13G

A Schedule 13D and a Schedule 13G both disclose beneficial ownership of more than 5% of a US company's voting shares. A 13D is the long form, filed by holders who may seek to influence or control the company, and it must state what they intend to do. A 13G is the short form, open only to passive holders and to certain institutions holding in the ordinary course of business, and it asks no question about intent.

Full guide: Schedule 13D vs Schedule 13G: what is the difference?

What else is on file for Trex Bio

For Trex Bio, OQRO holds 3 insider filings (SEC Form 4 or Form 144) and 4 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its TRXB page.

How this filing works

• Schedule 13D vs 13G

Other disclosures at Trex Bio

• SEC Schedule 13DOct 16, 2026
• SEC Schedule 13DOct 16, 2026
• SEC Schedule 13GOct 15, 2026
• SEC Form 4Oct 15, 2026
• SEC Form 4Oct 14, 2026
• SEC Form 4Oct 14, 2026

Everything OQRO holds on this company is on its TRXB page.