/Companies

Seraxis

Germantown, US · Founded 2021 · 6 known investors

Find your way into Seraxis

Sign up to see every warm intro you have to Seraxis

  • Paths you didn't know you had: your email and LinkedIn already hold routes to the Seraxis team. We find them for you
  • 2nd- and 3rd-degree connections: the friend-of-a-friend routes that take hours to manually find through your inbox or LinkedIn
  • Answers now, not in days: momentum is everything in a raise. Skip asking around whether someone knows someone

Days of research, done the moment you sign in, with every route ranked by how warm it is.

Seraxis is a regenerative medicine company developing a replacement cell therapy for insulin-dependent (Type 1) diabetes, using engineered islet cells to replace those missing in patients. It pursues scientific collaborations and licensing partnerships around its cell therapy technologies.

Founders & leadership

Seraxis was founded in 2021 by William L. Rust.

WLWilliam L. Rust
William L. RustFounder and CEO
CWCarole Welsch
Carole WelschChief Business Officer2016–2023She has over 20 years of experience in biologics, cell and gene therapies, medical devices, and diagnostics across oncology, hematology, metabolic diseases, and CNS, with expertise in clinical-commercial development, regulatory strategy, and operational execution.
GY
Gi-Hyeok YangNamed on SEC filing
RA
Roy ArupNamed on SEC filing
BT
Bernie TreidlNamed on SEC filing

Board

JNJames N. Topper
James N. TopperBoard directorManaging Partner at Frazier Life Sciences
JB
Jerry BatyBoard director

Investors · 6

Also in the syndicate · 2

Eli LillyPolaris Partners

Funding

SEC filings, press & company announcements

$24M disclosed across 2 of 5 rounds · 2016–2026

▶$10MraisedSep 2026 · 1 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • William L. RustExecutive Officer, Director
  • Carole WelschExecutive Officer
  • Jerry BatyDirector
Offering amount
$10M
Amount sold
$10M
First sale
Sep 2026
Incorporated
Corporation, Delaware, 2021
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$14MraisedFeb 2021 · 5 investors · Other
Rule 506(b)
Officers, directors & promoters on the filing
  • Gi-Hyeok YangDirector
  • James N. TopperDirector
  • Carole WelschExecutive Officer
  • William L. RustExecutive Officer, Director, Promoter
  • Roy ArupDirector
  • Bernie TreidlDirector
Offering amount
$40M
Amount sold
$14M
Finders' fees
$849.5K
Placement agents
Capstone Headwaters
First sale
Jan 2021
Incorporated
Corporation, Delaware, 2021
Federal exemptions
06b
Full filing on SEC EDGAR ↗

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

Related companies · 2

Companies working in the same space as Seraxis.

In the news

Frequently asked questions

What does Seraxis do?
Seraxis is a regenerative medicine company developing a replacement cell therapy for insulin-dependent (Type 1) diabetes, using engineered islet cells to replace those missing in patients. It pursues scientific collaborations and licensing partnerships around its cell therapy technologies.
Who founded Seraxis?
Seraxis was founded by William L. Rust in 2021.
Who are Seraxis's investors?
Seraxis's investors include Frazier Life Sciences, Maryland TEDCO, TEDCO, JDRF T1D Fund.
How much funding has Seraxis raised?
Seraxis has disclosed $24M raised across 2 of its 5 known rounds.
Where is Seraxis headquartered?
Seraxis is headquartered in Germantown, US.