John J. Gebbia
CEO at Siebert Financial Corp.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 1 year
- Director since
- 2025
1 year of board service in total across 1 board, counting each seat separately. Longest: Siebert Financial Corp., 1 year.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
Siebert Financial Corp. November 18, 202597.6%
-
Siebert Financial Corp. November 1, 202499.6%
-
Siebert Financial Corp. April 5, 202499.5%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 2, 2026 | Siebert Financial Corp. | Gift | −10,000 | — | — |
| Aug 26, 2026 | Siebert Financial Corp. | Gift | −22,500 | — | — |
| Mar 9, 2026 | Siebert Financial Corp. | Gift | −6,000 | — | — |
| Jan 20, 2026 | Siebert Financial Corp. | Gift | −140,000 | — | — |
| Nov 20, 2025 | Siebert Financial Corp. | Gift | −128,000 | — | — |
| Jun 10, 2025 | Siebert Financial Corp. | Other | +9,697,714 | — | — |
Questions about John J. Gebbia
What boards is John J. Gebbia on?
John J. Gebbia sits on the board of Siebert Financial Corp.
What company is John J. Gebbia the CEO of?
John J. Gebbia is CEO of Siebert Financial Corp.
How long has John J. Gebbia served on boards?
Our records show at least 1 year of board service across 1 board, the earliest from 2025.
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