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CSA Medical, Inc.

Develops a liquid nitrogen treatment device for people with chronic bronchitis.

Updated Nov 10, 2026·Latest SEC filing Jul 23, 2026·Suggest an edit

About CSA Medical

CSA Medical is a private company based in Lexington, Massachusetts. It has reported $159,649,396 raised in 11 offerings on Form D since December 2011. Its chief executive is Wendelin Maners.

Funding Rounds (SEC Form D)

First saleFiled with SECAmount soldInvestorsAvg. checkTermsFiling
Jun 8, 2026Jul 23, 2026$2,908,295of $11.2M target40$72,707EquityRule 506(b)Form D ↗
Aug 30, 2024Sep 18, 2024$59,663,552of $71.1M target52$1.1MEquityRule 506(b)Form D ↗
Jan 25, 2019Feb 7, 2019$45,218,361of $47.7M target37$1.2MEquityRule 506(b)Form D ↗
Dec 21, 2017Feb 7, 2019$5,083,214fully sold39$130KDebtRule 506(b)Form D ↗
May 31, 2017Jun 12, 2017$4,183,871of $6.3M target10$418KDebtRule 506(b)Form D ↗
Nov 21, 2016Dec 5, 2016$2,900,000of $7.7M target9$322KDebt, OptionsRule 506(b)Form D ↗
Jun 29, 2015Jul 13, 2015$6,564,801of $6.5M target26$252KDebt, OptionsRule 506(b)Form D ↗
Jun 29, 2015Jul 13, 2015$299,999fully sold1$299KOptionsRule 506(b)Form D ↗
Apr 2, 2015Apr 16, 2015$2,927,303of $3.9M target30$97,577Debt, OptionsRule 506(b)Form D ↗
Dec 18, 2013Jan 3, 2014$16,000,000fully sold8$2.0MEquityRule 506(b)Form D ↗
Nov 18, 2011Dec 1, 2011$13,900,000of $21.0M target5$2.7MEquity, Options06Form D ↗
Total, 11 offerings$159,649,396

First sale is the date the first investor in the offering committed to invest. Companies must file Form D within 15 days of that date, so filing dates run later.

Leadership Team

Executive officers and directors listed on CSA Medical's Form D filed Jul 23, 2026.

WM
Wendelin Maners
President and CEO, director
SC
Sean Cheng
Director
Also a managing director at Instylla and a director at MIVI Neuroscience.
VO
Vincent Owens
Executive officer and director
DM
Deng Mao
Director
Also a director at TECLens.
LD
Luc Marengere, Ph.D.
Managing Partner and director

Earlier filings also listed Tara Butler, M.D. (director, last listed Sep 2024), Tracy Marshbanks (director, last listed Feb 2019), Thomas Snead (director, last listed Feb 2019), Tara Butler (director, last listed Feb 2019), Richard Kent (director, last listed Feb 2019), Paul Lavoiolette (director, last listed Feb 2019), Ellen Sheets (executive officer and director, last listed Feb 2019) and Ian Vawter (cfo, last listed Dec 2016).

Sources

  1. SECCSA Medical, Inc. filing history
  2. PressCSA Medical: RejuvenAir approval application
  3. PressCSA Medical: RejuvenAir and liquid nitrogen spray technology
  4. PressCSA Medical: Series D financing
  5. InvestorTVM Capital Life Science: CSA Medical