/Companies

Ensysce Biosciences

NASDAQ: ENSC

La Jolla, US · Delaware corporation

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Ensysce is a pharmaceutical development company focused on developing safer medicines, with particular expertise in pain management and opioid-related drug development. The team has extensive experience bringing targeted small molecule drugs and oncology compounds from discovery through clinical development to market approval.

Founders & leadership

DL
D. Lynn Kirkpatrick, PhDCo-founder
DB
Dr. Bob GowerFounder and Chairman
JM
James MorrisonExecutive
DLD. Lynn Kirkpatrick
D. Lynn KirkpatrickCEOKirkpatrick has co-founded two biotech companies and led discovery and clinical development of three targeted small molecule oncology drugs into Phase 2 testing. As executive officer and director of Ensysce Biosciences, he oversees development of safer opioid medications for severe pain management.
DHDave Humphrey
Dave HumphreyChief Financial OfficerDave Humphrey is Chief Financial Officer at Ensysce Biosciences, a pharmaceutical development company focused on safer medicines and opioid-related drug development. He has held CFO positions at bioscience companies ranging from private startups to public firms, with expertise in corporate strategy, financing, investor relations, and SEC reporting.
LP
Linda PestanoChief Development OfficerShe has experience designing preclinical programs and building IND-enabling data packages for drug candidates targeting cancer and inflammatory diseases.
LPLinda Pestano, PhD
Linda Pestano, PhD
DW
Dr. William Schmidt, PhD
LKLynn Kirkpatrick
Lynn KirkpatrickCEOLynn Kirkpatrick co-founded two biotech companies and has experience discovering and developing targeted small molecule oncology drugs through Phase 2 clinical development. He has directed early discovery, development, and clinical evaluations at both private and public companies, and now leads Ensysce Biosciences as President and CEO, focusing on developing safer opioid medicines for severe pain management.
GB
Geoffrey BirkettChief Commercial Officer
JMJeffrey Millard
Jeffrey MillardChief Operating Officer (consultant)
WSWilliam Schmidt
William SchmidtChief Medical OfficerWilliam Schmidt is Chief Medical Officer of Ensysce Biosciences, a pharmaceutical development company focused on safer medicines in pain management and opioid-related drug development.

Reported raises · per SEC filings

Form D private placements

$102.6M disclosed across 8 rounds · 2021–2026

▶$77.2MraisedAug 2026 · 44 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • D Lynn KirkpatrickExecutive Officer, Director
  • Bob GowerDirector
  • William ChangDirector
  • Steve MartinDirector
  • Adam LevinDirector
  • David HumphreyExecutive Officer
  • James MorrisonExecutive Officer, Director
Offering amount
$77.2M
Amount sold
$77.2M
Sales commissions
$1.3M
Finders' fees
$200K
Placement agents
UBS Securities LLC, Cantor Fitzgerald & Co.
First sale
Aug 2026
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$2.2MraisedApr 2025 · 8 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • D Lynn KirkpatrickExecutive Officer, Director
  • David HumphreyExecutive Officer
  • Adam LevinDirector
  • Curtis RosebraughDirector
  • Lee RauchDirector
  • William ChangDirector
  • Andrew BentonDirector
  • Steve MartinDirector
  • Bob GowerDirector
Offering amount
$2.2M
Amount sold
$2.2M
Sales commissions
$154K
Placement agents
H.C. Wainwright & Co., LLC
First sale
Apr 2025
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$1.1MraisedApr 2025 · 8 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Adam LevinDirector
  • Lee RauchDirector
  • D Lynn KirkpatrickExecutive Officer, Director
  • Andrew BentonDirector
  • David HumphreyExecutive Officer
  • Curtis RosebraughDirector
  • William ChangDirector
  • Steve MartinDirector
  • Bob GowerDirector
Offering amount
$1.1M
Amount sold
$1.1M
Sales commissions
$142.9K
Placement agents
H.C. Wainwright & Co., LLC
First sale
Mar 2025
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$5.1MraisedSep 2024 · 4 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Andrew BentonDirector
  • Curtis RosebraughDirector
  • William ChangDirector
  • Bob GowerDirector
  • Steve MartinDirector
  • David HumphreyExecutive Officer
  • Adam LevinDirector
  • Lee RauchDirector
  • D Lynn KirkpatrickExecutive Officer, Director
Offering amount
$5.1M
Amount sold
$5.1M
Sales commissions
$454.8K
Placement agents
H.C. Wainwright & Co., LLC
First sale
Aug 2024
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$4.7MraisedFeb 2024 · 4 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Adam LevinDirector
  • Lee RauchDirector
  • Bob GowerDirector
  • D Lynn KirkpatrickExecutive Officer, Director
  • Andrew BentonDirector
  • David HumphreyExecutive Officer
  • Steve MartinDirector
  • William ChangDirector
  • Curtis RosebraughDirector
Offering amount
$4.7M
Amount sold
$4.7M
Sales commissions
$265.9K
Placement agents
H.C. Wainwright & Co., LLC
First sale
Feb 2024
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$2.8MraisedMar 2023 · 8 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Bob GowerDirector
  • Adam LevinDirector
  • D Lynn KirkpatrickExecutive Officer, Director
  • Steve MartinDirector
  • David HumphreyExecutive Officer
  • Andrew BentonDirector
  • Curtis RosebraughDirector
  • Lee RauchDirector
  • William ChangDirector
Offering amount
$2.8M
Amount sold
$2.8M
Sales commissions
$210K
Placement agents
H.C. Wainwright & Co., LLC
First sale
Feb 2023
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$4.2MraisedJul 2022 · 3 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Bob GowerDirector
  • D Lynn KirkpatrickExecutive Officer, Director
  • Steve MartinDirector
  • Curtis RosebraughDirector
  • David HumphreyExecutive Officer
  • William ChangDirector
  • Lee RauchDirector
  • Adam LevinDirector
  • Andrew BentonDirector
Offering amount
$8.5M
Amount sold
$4.2M
Finders' fees
$200K
Placement agents
Lake Street Capital Markets, LLC
First sale
Jun 2022
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$5.3MraisedOct 2021 · 3 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • David HumphreyExecutive Officer
  • Andrew BentonDirector
  • D Lynn KirkpatrickExecutive Officer, Director
  • Adam LevinDirector
  • Curtis RosebraughDirector
  • Steve MartinDirector
  • William ChangDirector
  • Bob GowerDirector
Offering amount
$15.9M
Amount sold
$5.3M
Finders' fees
$250K
Placement agents
Lake Street Capital Markets, LLC
First sale
Sep 2021
Incorporated
Corporation, Delaware
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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In the news

Frequently asked questions

What does Ensysce Biosciences do?
Ensysce is a pharmaceutical development company focused on developing safer medicines, with particular expertise in pain management and opioid-related drug development. The team has extensive experience bringing targeted small molecule drugs and oncology compounds from discovery through clinical development to market approval.
Who founded Ensysce Biosciences?
Ensysce Biosciences was founded by D. Lynn Kirkpatrick, PhD, Dr. Bob Gower.
How much funding has Ensysce Biosciences raised?
Ensysce Biosciences has disclosed $102.6M raised across 8 rounds.
Where is Ensysce Biosciences headquartered?
Ensysce Biosciences is headquartered in La Jolla, US.