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BCS

Changes in Beneficial Ownership · 4/A

Quoin Pharmaceuticals Ltd.

Changes in Beneficial Ownership

Filed Oct 26, 2026Accepted Oct 26, 2026, 8:21 PM EDTFiling CIK 1671502Accession 0001104659-26-118917
Share

Structured filing — 4/A

tm2628307-1_4aseq1.xml

Open full document ↗

Amendment · This filing reports the amendment as submitted.

Filing details

Report period
2026-08-27
Original submission
2026-08-28
Issuer
Quoin Pharmaceuticals Ltd.
Issuer CIK
0001671502
Trading symbol
QNRX

Reporting owner 1

Name
LANGER DENNIS
Reporting owner CIK
0001274225
Relationship
Director
Address
C/O QUOIN PHARMACEUTICALS LTD.,, 42127 PLEASANT FOREST COURT, ASHBURN, VA, 20148

Non-derivative holdings

Non-derivative holdings · 1 reported row
SecurityAmount ownedOwnership
ADSs[F1]49,687[F2]D
Table key
D
Direct

Footnotes

F1
Ordinary Shares are represented by American Depositary Shares ("ADSs"). Each ADS represents thirty-five (35) ordinary shares of the Issuer.↩ 1
F2
On August 28, 2026, the reporting person filed a Form 4 (the "Original Form 4") which inadvertently overstated in column 5 the number of shares directly owned by the reporting person following the reported transaction. This inadvertent overstatement has been corrected in this amended filing.↩ 1

Signature 1

Signed
/s/ Dennis Langer
Date
2026-10-26

Company context

Quoin Pharmaceuticals Ltd. is a late clinical-stage specialty pharmaceutical company focused on developing and commercializing therapeutic products that treat rare and orphan diseases. We are committed to addressing unmet medical needs for patients, their families, communities, and care teams. Quoin’s innovative pipeline is focused on two key platform products, QRX003 and QRX009, that collectively have the potential to target a broad number of rare and orphan indications, including Netherton Syndrome, Peeling Skin Syndrome, Palmoplantar Keratoderma, Pachyonychia Congenita, Gorlin Syndrome and Tuberous Sclerosis Complex, Microcystic Lymphatic Malformations, Venous Malformations, Angiofibromas and others. For more information, visit: www.quoinpharma.com or LinkedIn for updates.

Current securities

Historical securities (2)

Recent company filings

  1. Submission of Matters to a Vote of Security HoldersNov 12, 2026
  2. Results of Operations and Financial ConditionNov 6, 2026
  3. 10-Q filingNov 5, 2026
  4. EFFECT filingNov 4, 2026
  5. Entry into a Material Definitive AgreementNov 4, 2026

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