TRexBio

South San Francisco, CA · Founded 2018 · Privately Held (backing)

Developer of immunoregulatory medicines designed to restore immune balance in inflammatory diseases through tissue regulatory T cell biology. TRexBio is based in South San Francisco, CA and was founded in 2018. It is valued at about $274 million as of Oct 2026, set by institutional fund marks. It has raised $222 million.

PMV mark · valuation
$274.0M
Oct 2026
Priced at
—
Total raised
$222.1M
Last round
—
What is TRexBio worth?
$274.0MPrivateMarketView mark · Oct 2026

Reported valuation; nothing comparable since.

Pro
The prices on TRexBio
  • ·13 fund marks: filer, period, implied $/share
Pro · $99 a month
List $299 · founding price, locked for as long as you stay

Membership and data by Private Market View

Valuation timeline

0 priced rounds · 32 daily marks since · Sep 2026 – Oct 2026
▮▮
Markrounds hold their value until the next priced eventMark, today
log scale
Post-money values unlock with a free account.Unlock the axis

Membership and data by Private Market View

TRexBio funding history

No rounds on record

No funding rounds for TRexBio are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.

Pro members can request priority coverage with a 48-hour turnaround.

TRexBio valuation

TRexBio is valued at approximately $274 million as of Oct 2026. The figure is set by institutional fund marks.

Institutional holders and vehicles

4 SEC-registered funds reported 13 fair-value marks on TRexBio between Apr 2025 and Oct 2025, in their N-PORT filings. Filer-level marks and implied per-share values are available to Pro members.

How TRexBio's valuation is determined

Private company valuations aren’t quoted on an exchange — they’re established in moments: a priced funding round sets a post-money valuation, secondary trades print at a price per share, and SEC-registered funds holding the stock report fair-value marks in their N-PORT filings.

For TRexBio, the most current credible signal sets the number and the older ones confirm it: a live secondary-market price first, then three or more recent prints, then institutional fund marks, and otherwise the last priced round, which never decays. The valuation is the last round’s post-money moved by the price change since that round, so no share count is assumed. Today it is set by institutional fund marks. Question about this number? Full methodology →

Frequently asked about TRexBio

What is TRexBio worth?
TRexBio is valued at $274.0M as of Oct 2026. Reported valuation; nothing comparable since.
How much has TRexBio raised?
TRexBio has raised $222.1M in total funding across its recorded rounds.