TRex Bio: 10% owner Alexandria Venture Investments bought 1,346,501 shares

What happened

• Alexandria Venture Investments, LLC, a 10% owner, reported conversions of derivative securities into common stock and an open market or private purchase.
• The filing shows acquisitions of 1,167,930 shares via conversion and 178,571 shares purchased at $14.00 for $2,499,994, and dispositions of 1,033,541 shares and 3,480,387 shares via conversion (priced at $0.00).

Key details

• Transaction date: Oct 13, 2026. Filing date: Oct 15, 2026.
• Purchases: 178,571 shares at $14.00 per share for $2,499,994 (transaction code P).
• Conversions (transaction code C): acquired 1,167,930 shares; disposed 1,033,541 shares and 3,480,387 shares (each conversion shown at $0.00).
• Shares owned after the transactions: not specified in the filing.
• Footnote: each share of preferred stock automatically converted into the issuer's common stock at a ratio of 3.8649 preferred shares to 1 common share upon closing of the issuer's initial public offering on Oct 13, 2026, for no additional consideration; the shares had no expiration date.
• Transaction codes per the filing: C = conversion of derivative security, P = open market or private purchase.

Why it may matter

• Conversion: the filing records conversion of derivative securities (preferred stock) into common stock under the stated 3.8649-to-1 ratio upon the issuer's IPO.
• Purchase: the filing shows a market/private purchase of 178,571 shares at $14.00 for $2,499,994.
• 10% owner: Alexandria Venture Investments is a large holder (10% owner), not an executive.
• The filing does not show why the insider traded or why the company acted.