Who invested in CStone Pharmaceuticals?
CStone Pharmaceuticals's investors include HSG, ARCH Venture Partners and Hill House Capital.
One round we have observed, with the 3 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
Funding summaryUpdated 26 Oct 2026
$60Mraised across 1 round since 2025, from 1 source
CStone Pharmaceuticals's investors include HSG, ARCH Venture Partners and Hill House Capital.
CStone Pharmaceuticals has raised $60M across 1 round since 2025.
CStone Pharmaceuticals's most recent round was an Undisclosed round of $60M in Jul 2025.
Its most recent round, $60M in Jul 2025, is also its largest on record.
CStone Pharmaceuticals's first round on record, in Jul 2025, was backed by HSG, ARCH Venture Partners and Hill House Capital.
CStone Pharmaceuticals's latest named round is an Undisclosed round, in Jul 2025.
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