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ENSC · NASDAQ · Biotechnology

Ensysce Biosciences

Develops opioid-safety prodrugs and a neuroplastogenic pain candidate.

$0.3999
Pre-market+0.01 (+1.86%)
At close$0.3926(−1.83%)

Breakdown13F · 13D/G · Form 4

Insiders2 holders · as of Aug 18, 20266.21%1.21M shares
Otherremainder93.79%18.25M shares

19.46M company shares as of Sep 1, 2026 · holders as of their latest filing

Two share counts disagree (19.46M in the company's Sep 1, 2026 report, 15.37M elsewhere); stakes use the report.

Top shareholders13F · 13D/G · Form 4

HolderStakeSharesEvidence
Bob G. Gower1Insiderdirector
6.20%1.21M13Dfiled Aug 18, 2026
William H. Chang2Insiderdirector, 10 percent owner
0.00%72113Dfiled Jul 12, 2021
AQR Capital Management, LLCInstitution
2.20% of class, as filed13D/Gfiled Feb 15, 2019
BMO Capital Markets Corp.Institution
6.23% of class, as filed13Gfiled Feb 14, 2020
CVI Investments, Inc.Strategic
7.80% of class, as filed13Gfiled Dec 16, 2022
Davidson Kempner Capital Management LPInstitution
5.83% of class, as filed13Gfiled Dec 11, 2017
LLCStrategic
4.50% of class, as filed13Gfiled Feb 13, 2018
Matthews Lane Capital Partners LLCStrategic
18.10% of class, as filed13Gfiled Feb 10, 2021
Rockledge Capital CorporationStrategic
9.99% of class, as filed13Gfiled Feb 7, 2023
WrightInsider
5.40% of class, as filed13Dfiled Jul 12, 2021
HG Vora Capital Management, LLC3Strategic10 percent owner
0.00%962Form 4filed Jan 17, 2018
Lynn Kirkpatrick4Insiderofficer: Chief Executive Officer
0.00%106Form 4filed May 27, 2022
A. Lorne Weil3Insiderdirector, officer: Executive Chairman
0.00%74Form 4filed Jan 17, 2018
George Peng3Insiderofficer: Chief Financial Officer
0.00%24Form 4filed Jan 17, 2018
Eric Carrera3Insiderofficer: Senior Vice President
0.00%15Form 4filed Jan 17, 2018
David Carl Humphrey5Insiderofficer: Chief Financial Officer
0.00%14Form 4filed Jul 2, 2021
Marc J. Falcone6Insiderdirector
0.00%7Form 4filed Dec 1, 2017
Steven M. Rittvo6Insiderdirector
0.00%7Form 4filed Dec 1, 2017
David L. Weinstein6Insiderdirector
0.00%7Form 4filed Dec 1, 2017
Stanley Morgan7Insider10 percent owner
0.00%0Form 4filed Jun 23, 2020
Daniel B. Silvers3,8Insiderdirector, officer: Chief Executive Officer
0.00%0Form 4filed Jan 17, 2018
  1. Bob G. Gower's transaction reports restate only vehicles that traded; the 2026 ownership statement (1.21M) is used instead.
  2. William H. Chang's transaction reports restate only vehicles that traded; the 2021 ownership statement (721) is used instead.
  3. Last filed Jan 17, 2018; leaving the company requires no filing. Not in the bar.
  4. Last filed May 27, 2022; leaving the company requires no filing. Not in the bar.
  5. Last filed Jul 2, 2021; leaving the company requires no filing. Not in the bar.
  6. Last filed Dec 1, 2017; leaving the company requires no filing. Not in the bar.
  7. Last filed Jun 23, 2020; leaving the company requires no filing. Not in the bar.
  8. Daniel B. Silvers reports a block also reported by Matthews Lane Capital Partners LLC; it is counted once, under Matthews Lane Capital Partners LLC.

13D/13G — an ownership statement filed at 5% or more · Form 4 — an insider's transaction report

Institutions13F

No 13F holders on record.

Ownership statements13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
RA Capital Healthcare Fund, L.P.incl. RA Capital Management, L.P., Peter Kolchinsky +1 more9.90%13GNov 6, 2024
Perceptive Life Sciences Master Fund, Ltd.incl. Perceptive Advisors LLC, Joseph Edelman8.70%13GOct 29, 2024
Tony Mooreincl. Moez Kassam, Anson Management GP LLC +3 more7.10%13GNov 14, 2024
Bob Gene Gower6.10%1.21M13DAug 18, 2026

Insider tradesForm 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Aug 7, 2026
Bob G. Gowerdirector
Purchase400,000$0.4950916,740
Apr 23, 2026
Bob G. Gowerdirector
Purchase508,614$0.4840516,740

CongressHouse and Senate disclosures

Not reported.