Fundraising Fox

ParcelBio

YC W24 ↗

San Francisco, US · Founded 2023 · Delaware corporation · 6 employees · 8 known investors

parcelbio.com ↗

ParcelBio develops APEXm, a proprietary mRNA platform that enhances protein expression for longer-lasting therapeutic effect compared to conventional mRNA technologies. The platform targets autoimmune disease, oncology, and therapeutic protein replacement applications.

AI & Machine LearningBiotechDeep TechHealthtechGene TherapySynthetic BiologyTherapeuticsDrug discoveryin /parcelbio@ycombinatorycombinator.com ↗

Founders & leadership· Y Combinator alumni (W24)

DWDavid Weinberg
David WeinberginFounder
CCChris Carlson
Chris CarlsoninFounder
MC
Morgan CheathamDirector

Investors · 8

Y Combinator✓ verifiedSan Francisco · $500K
Breyer Capital✓ verifiedAustin · $500K – $10M
General Catalyst✓ verifiedSan Francisco · $30M
MetaplanetTallinn · $500K – $10M
Ritual CapitalMenlo Park · $100K – $500Kvia Chris Howard · inferred
Spacecadet VenturesKent County · $100K – $500K
ZAKA VCSan Francisco
468 CapitalreportedBerlin

Reported raises · per SEC filings

Form D private placements
▶$13.2MraisedMar 2026 · 52 investors · Biotechnology
Rule 506(c)
Officers, directors & promoters on the filing
  • Morgan CheathamDirector
  • Christopher CarlsonExecutive Officer, Director
  • David WeinbergExecutive Officer, Director
Offering amount
$13.2M
Amount sold
$13.2M
First sale
Feb 2026
Incorporated
Corporation, Delaware, 2024
Federal exemptions
06c
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

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