Skip to main content
Livermore
Livermore
ZHEN

Siebert Financial Corp

SIEB
Exchange
Nasdaq
Industry
Security Brokers, Dealers & Flotation Companies
SEC CIK
0000065596

In the last 90 days, Siebert Financial Corp insiders filed 1 open-market purchase and 0 sales; 47 institutions reported holding it in 13F filings for Q2 2026, worth $3.93M in total; no superinvestor holds it.

Holders of 5% or more of SIEB

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Siebert Financial Corp, largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of SIEB
HolderLatest formStakeChangeFirst filedLatest filingFiling
Gebbia Richard13D/A42.00%17.0M shares–Mar 5, 20251 filingMar 5, 2025SEC
Gebbia Gloria E13D/A42.00%16.8M shares0.00 ppfrom 42.00%May 22, 20254 filingsNov 24, 2025SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

5 Schedule 13D and 13G filings on Siebert Financial Corp, newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on SIEB
Filed (ET)FilerFormStakeChangeEvent dateFiling
Nov 24, 20255:30 PM ETGebbia Gloria Eand 5 others13D/A42.00%16.8M shares0.00 ppfrom 42.00%Nov 20, 2025SEC
Jun 12, 20257:32 PM ETGebbia Gloria Eand 5 others13D/A42.00%16.9M shares0.00 ppfrom 42.00%Jun 10, 2025SEC
May 29, 20254:30 PM ETGebbia Gloria Eand 4 others13D/A42.00%16.9M shares0.00 ppfrom 42.00%May 27, 2025SEC
May 22, 20253:55 PM ETGebbia Gloria Eand 4 others13D/A42.00%16.9M shares–May 21, 2025SEC
Mar 5, 20259:06 PM ETGebbia Richardand 4 others13D/A42.00%17.0M shares–Dec 9, 2024SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell Siebert Financial Corp shares.

No Form 144 notices for Siebert Financial Corp are on file.