Gregory James Blattner - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Gregory James Blattner has filed 1 SEC Form 4 filing across 1 company in the last 90 days - selling.
Profile
Gregory James Blattner is Director at Dominari Holdings Inc. (DOMH). Blattner has reported 3 insider filings with the SEC since 2025. The most recent filing was in July 2026.
| Role | Director |
|---|---|
| Notability | 26/100 |
Board memberships
- Dominari Holdings Inc.
Reported roles
- Director
Trading Pattern
InsiderAlpha's records for Gregory James Blattner go back to 2025: 3 primary Form 4 filings, an average of 1.5 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Gregory James Blattner has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Director at Dominari Holdings Inc. (DOMH) - 3 filings, 2025 to 2026
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-03-25 | DOMH | Dominari Holdings Inc. | A - Grant or award | 25.0K | - | |
| 2025-09-23 | DOMH | Dominari Holdings Inc. | S - Open-market sale | 14.4K | - |
Companies - Last 90 Days
- Dominari Holdings Inc. (DOMH) - 1 filing, last 2026-07-06
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Gregory James Blattner has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- Christopher Franklin Devall - $1.04M of DOMH open-market activity in the last 12 months
- Kyle Michael Wool - $194K of DOMH open-market activity in the last 12 months
- Anthony Hayes - $178K of DOMH open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Michael Sean Griffey
- GS FUND HOLDINGS, L.L.C.
- Steve Handy
- Hanwha Aerospace Co., Ltd.
- Stayce D. Harris
- Harrison Street Real Assets Fund LLC
- Haveli Investments, L.P.
- Stephen J. Hemsley
Frequently Asked Questions
Who is Gregory James Blattner?
Gregory James Blattner is Director at Dominari Holdings Inc. (DOMH). Blattner has reported 3 insider filings with the SEC since 2025. The most recent filing was in July 2026.…
How many SEC Form 4 filings has Gregory James Blattner submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Gregory James Blattner been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale across all tracked filings.
Where can I see all of Gregory James Blattner's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Gregory James Blattner profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.