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Company

TRex Bio, Inc.

TRXB · CIK 0002139097

SEC FORM 4
—

TRex Bio, Inc. (TRXB)

Acquisition (code C) of 41,871 shares; price not stated (see filing).

Reporting Person MARCUS JOEL S · Transaction Code C

Traded Oct 13, 2026 · Disclosed Oct 13, 2026

Source: SEC Form 4 · 0001193125-26-420734 · filed 2026-10-13 · View filing →

SEC FORM 4
$0.00

TRex Bio, Inc. (TRXB)

Acquisition (code C) of 1,574,074 shares at $0 per share.

Reporting Persons SVLSF VI, LLC · SV Life Sciences Fund VI (GP), L.P. · SV Life Sciences Fund VI, L.P. · Transaction Code C

Traded Oct 13, 2026 · Disclosed Oct 13, 2026

Source: SEC Form 4 · 0001829126-26-011084 · filed 2026-10-13 · View filing →

SEC FORM 4
$0.00

TRex Bio, Inc. (TRXB)

Acquisition (code C) of 475,411 shares at $0 per share.

Reporting Persons SVLSF VI, LLC · SV Life Sciences Fund VI (GP), L.P. · SV Life Sciences Fund VI, L.P. · Transaction Code C

Traded Oct 13, 2026 · Disclosed Oct 13, 2026

Source: SEC Form 4 · 0001829126-26-011084 · filed 2026-10-13 · View filing →

SEC FORM 4
$0.00

TRex Bio, Inc. (TRXB)

Acquisition (code C) of 53,892 shares at $0 per share.

Reporting Persons SVLSF VI, LLC · SV Life Sciences Fund VI (GP), L.P. · SV Life Sciences Fund VI, L.P. · Transaction Code C

Traded Oct 13, 2026 · Disclosed Oct 13, 2026

Source: SEC Form 4 · 0001829126-26-011084 · filed 2026-10-13 · View filing →

SEC FORM 4
$0.00

TRex Bio, Inc. (TRXB)

Acquisition (code C) of 16,277 shares at $0 per share.

Reporting Persons SVLSF VI, LLC · SV Life Sciences Fund VI (GP), L.P. · SV Life Sciences Fund VI, L.P. · Transaction Code C

Traded Oct 13, 2026 · Disclosed Oct 13, 2026

Source: SEC Form 4 · 0001829126-26-011084 · filed 2026-10-13 · View filing →

SEC FORM 4
$0.00

TRex Bio, Inc. (TRXB)

Acquisition (code C) of 669,939 shares at $0 per share.

Reporting Persons SVLSF VI, LLC · SV Life Sciences Fund VI (GP), L.P. · SV Life Sciences Fund VI, L.P. · Transaction Code C

Traded Oct 13, 2026 · Disclosed Oct 13, 2026

Source: SEC Form 4 · 0001829126-26-011084 · filed 2026-10-13 · View filing →

SEC FORM 4
$1,256,962.00

TRex Bio, Inc. (TRXB)

Purchase of 89,783 shares at $14.00 per share.

Reporting Persons SVLSF VI, LLC · SV Life Sciences Fund VI (GP), L.P. · SV Life Sciences Fund VI, L.P. · Transaction Code P

Traded Oct 8, 2026 · Disclosed Oct 13, 2026

Source: SEC Form 4 · 0001829126-26-011084 · filed 2026-10-13 · View filing →

SEC FORM 4
$43,036.00

TRex Bio, Inc. (TRXB)

Purchase of 3,074 shares at $14.00 per share.

Reporting Persons SVLSF VI, LLC · SV Life Sciences Fund VI (GP), L.P. · SV Life Sciences Fund VI, L.P. · Transaction Code P

Traded Oct 8, 2026 · Disclosed Oct 13, 2026

Source: SEC Form 4 · 0001829126-26-011084 · filed 2026-10-13 · View filing →