---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-23-043704"
form_type: "8-K"
ticker: "SIEB"
cik: "0000065596"
company_name: "SIEBERT FINANCIAL CORP"
filed_at: "2023-05-30T23:59:59+00:00"
generated_at: "2026-06-14T12:12:20.460707+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Siebert Financial appoints John J. Gebbia as Chairman/CEO, Simon Shin to board

## Summary
- John J. Gebbia appointed Chairman and CEO effective May 24, 2023; he has been a director since 2020.
- Simon Shin appointed to board; he is head of Payment Business Group and Corporate Development at Kakaopay.
- Appointments part of previously disclosed Kakaopay investment and Stockholders Agreement with Gebbia family.
- Mr. Shin brings over 15 years in global tech, including roles at Kakao, Samsung, McKinsey, Intel, and Naver.

## SEC filing metadata
- accession: 0001213900-23-043704
- form_type: 8-K
- ticker: SIEB
- cik: 0000065596
- company_name: SIEBERT FINANCIAL CORP
- filed_at: 2023-05-30T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/65596/000121390023043704/0001213900-23-043704-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/65596/000121390023043704/ea179348-8k_siebert.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-23-043704
- JSON: https://secwatch.observer/filing/0001213900-23-043704.json
- Plain text: https://secwatch.observer/filing/0001213900-23-043704.txt

## Key facts
- Executive change
  John J. Gebbia was appointed as Chairman of the Board and Chief Executive Officer at SIEBERT FINANCIAL CORP.
  - Action: appointed
  - Role: Chairman of the Board and Chief Executive Officer
  source text: On May 24, 2023, the Board of Directors of Siebert Financial Corp. (the “Company”) appointed John J. Gebbia as Chairman of the Board and Chief Executive Officer
  evidence_url: https://www.sec.gov/Archives/edgar/data/65596/000121390023043704/0001213900-23-043704-index.htm
- Executive change
  Simon Shin was appointed as Director at SIEBERT FINANCIAL CORP.
  - Action: appointed
  - Role: Director
  source text: and appointed Simon Shin to the Company’s Board of Directors.
  evidence_url: https://www.sec.gov/Archives/edgar/data/65596/000121390023043704/0001213900-23-043704-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.