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Pleural Dynamics

Wayzata, US · Founded 2020 · 7 employees on LinkedIn · 1 known investors

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Pleural Dynamics develops medical implant devices for patients with recurrent pleural effusions. Its ACES (Automatic Continuous Effusion Management System) implant shunts fluid to relieve symptomatic recurrent pleural effusion.

BiotechHealthtechMedical Devices

Founders & leadership

Pleural Dynamics was founded in 2020 by Martin L. Mayse and John Streeter.

MLMartin L. Mayse
Martin L. MayseFounder and Chief Executive OfficerMartin L. Mayse is board certified in internal medicine and pulmonary medicine, and fellowship trained in interventional pulmonology. He is an executive officer and director at Pleural Dynamics, which develops minimally invasive implants for treating pleural effusions.
JSJohn Streeter
John StreeterCTO, Co-Founder
MB
Mike BlackFractional CFO

Board

RC
Robert CrutchfieldBoard director
RS
Richard StarkBoard director
GV
Gintaras VaisnysBoard director
MD
Mark DeemBoard director

Investors · 1

Reported raises · per SEC filings

Form D private placements

$9.2M disclosed across 3 of 4 rounds · 2020–2025

▶$618KraisedNov 2025 · 6 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Gintaras VaisnysDirector
  • Martin L. MayseExecutive Officer, Director, Promoter
  • Richard StarkDirector
  • Robert CrutchfieldDirector
  • Mark DeemDirector
Offering amount
$4M
Amount sold
$618K
First sale
Oct 2025
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$7.7MraisedFeb 2025 · 29 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Richard StarkDirector
  • Gintaras VaisnysDirector
  • Mark DeemDirector
  • Martin L. MayseExecutive Officer, Director, Promoter
  • Robert CrutchfieldDirector
Offering amount
$8.5M
Amount sold
$7.7M
First sale
May 2023
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$835KraisedMay 2020 · 10 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Martin MayseExecutive Officer, Director, Promoter
Offering amount
$1.3M
Amount sold
$835K
First sale
Apr 2020
Incorporated
Corporation, Delaware, 2020
Federal exemptions
06b
Full filing on SEC EDGAR ↗

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

Frequently asked questions

What does Pleural Dynamics do?
Pleural Dynamics develops medical implant devices for patients with recurrent pleural effusions. Its ACES (Automatic Continuous Effusion Management System) implant shunts fluid to relieve symptomatic recurrent pleural effusion.
Who founded Pleural Dynamics?
Pleural Dynamics was founded by Martin L. Mayse, John Streeter in 2020.
Who are Pleural Dynamics's investors?
Pleural Dynamics's investors include Good Growth Capital.
How much funding has Pleural Dynamics raised?
Pleural Dynamics has disclosed $9.2M raised across 3 of its 4 known rounds.
Where is Pleural Dynamics headquartered?
Pleural Dynamics is headquartered in Wayzata, US.