Fundraising Fox

Accipiter Biosciences

Seattle, US · Founded 2023 · Delaware corporation · 4 known investors

Biotech

Founders & leadership

MB
Matthew BickExecutive Officer, Director, Promoter
JC
Javier CastellanosExecutive Officer, Director, Promoter
HD
Hector De Jesus Rincon AranoExecutive Officer, Promoter
HR
Heather RedmanDirector
RS
Randall SchatzmanDirector
WC
William CanestaroExecutive Officer
JA
Jose Antonio Mesa CejudoDirector
HG
Heather GorhamDirector
JG
Jiaping GuDirector

Investors · 4

Argonautic VenturesreportedNew York · $5M
Columbus Venture PartnersreportedValenciavia Jose Mesa · inferred
Pack VenturesreportedSeattlevia Ken Horenstein · inferred
WRF CapitalreportedSeattle · $100K – $2M

Reported raises · per SEC filings

Form D private placements
▶$10.5MraisedJul 2026 · 9 investors · Biotechnology
Rule 506(b)
Moving faster than planned, AI drug developer Accipiter Bio quietly tops up seed round with $10.5M – GeekWiregeekwire.com · Jul 2026
Officers, directors & promoters on the filing
  • Matthew BickExecutive Officer, Director, Promoter
  • Hector De Jesus Rincon AranoExecutive Officer, Director, Promoter
  • Javier CastellanosExecutive Officer, Director, Promoter
  • Heather RedmanDirector
  • Randall SchatzmanDirector
  • William CanestaroExecutive Officer
  • Jose Antonio Mesa CejudoDirector
Offering amount
$10.5M
Amount sold
$10.5M
First sale
Jul 2026
Incorporated
Corporation, Delaware, 2023
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$13.6MraisedSep 2025 · 15 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Heather GorhamDirector
  • Jose Antonio Mesa CejudoDirector
  • Jiaping GuDirector
  • Matthew BickExecutive Officer, Director, Promoter
  • Javier CastellanosExecutive Officer, Director, Promoter
  • Hector De Jesus Rincon AranoExecutive Officer, Promoter
Offering amount
$13.7M
Amount sold
$13.6M
First sale
May 2024
Incorporated
Corporation, Delaware, 2023
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$650KraisedMay 2023 · 6 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Matthew BickExecutive Officer, Director, Promoter
  • William ArthurExecutive Officer, Director, Promoter
  • Javier CastellanosExecutive Officer, Director, Promoter
  • Hector AranoExecutive Officer, Director, Promoter
Offering amount
$1M
Amount sold
$650K
First sale
Apr 2023
Incorporated
Corporation, Delaware, 2023
Federal exemptions
06b
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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