Gramm Jefferson
- SEC CIK
- 0001427290
No open-market purchases or sales filed in the past year.
Current role at each company
- SGU Star Group, L.P.10% Owner, Other: See Footnote 1as of Jun 3, 2025
- IVFH Innovative Food Holdings IncDirector, 10% Owneras of Dec 6, 2024
- JYNT JOINT Corp10% Owneras of Sep 21, 2023
- RBCN Rubicon Technology, Inc.Director, 10% Owner, Other: See Footnote 1as of Aug 23, 2022
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- –
- 0 filings
- Net
- –
- Bought minus sold
- Companies
- 0
- With open-market trades
Trades
Every Form 4 that lists Gramm Jefferson as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
SGU Star Group, L.P.
10% Owner, Other: See Footnote 13 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jun 3, 2025 (view filing)4:07 PM ET | May 30 | 4 days | Bandera Partners LLC and 2 others10% Owner, Other: See Footnote 1 | SSaleCommon Units | −700.0K | $12.04 | −$8.43M | −20.3%2.75M after | |
| Jun 20, 2023 (view filing)5:20 PM ET | Jun 15 | 5 days | Bandera Partners LLC and 2 others10% Owner, Other: See Footnote 1 | SSaleCommon Units | −712 | $15.06 | −$10.7K | 0.0%3.45M after | |
| Jun 14, 2023 (view filing)5:36 PM ET | Jun 12-14 | 2 days | Bandera Partners LLC and 2 others10% Owner, Other: See Footnote 1 | SSaleCommon Units | −19.0K | $15.08 | −$287.2K | −0.5%3.45M after | 3 lots |
IVFH Innovative Food Holdings Inc
Director, 10% Owner4 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Dec 6, 2024 (view filing) | Dec 4 | 2 days | Gramm JeffersonDirector, 10% Owner | PPurchaseCommon Stock, par value $0.0001 per share | +1.25M | $1.60 | +$2.00M | +25.3%6.19M after | |
| Jul 23, 2024 (view filing) | Jul 21 | 2 days | Gramm JeffersonDirector | PPurchaseCommon Stock, par value $0.0001 per share | +350.0K | $1.20 | +$420.0K | +7.6%4.94M after | |
| Jul 19, 2024 (view filing) | Jul 17 | 2 days | Gramm JeffersonDirector | PPurchaseCommon Stock, par value $0.0001 per share | +1.11M | $1.20 | +$1.33M | +31.8%4.59M after | 2 lots |
| Feb 10, 2023 (view filing)4:27 PM ET | Feb 8 | 2 days | Gramm JeffersonDirector | PPurchaseCommon Stock, par value $0.0001 per share | +360.0K | $0.25 | +$90.0K | +11.5%3.48M after |
JYNT JOINT Corp
10% Owner24 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 21, 2023 (view filing)5:15 PM ET | Sep 19-21 | 2 days | Bandera Partners LLC and 2 others10% Owner | PPurchaseCommon Stock, $0.001 Par Value Per Share | +240.9K | $9.58 | +$2.31M | +6.5%3.94M after | 5 lots |
| Sep 18, 2023 (view filing)5:20 PM ET | Sep 14-18 | 4 days | Bandera Partners LLC and 2 others10% Owner | PPurchaseCommon Stock, $0.001 Par Value Per Share | +77.4K | $9.25 | +$716.6K | +2.1%3.70M after | 5 lots |
| Sep 13, 2023 (view filing)5:36 PM ET | Sep 11-13 | 2 days | Bandera Partners LLC and 2 others10% Owner | PPurchaseCommon Stock, $0.001 Par Value Per Share | +47.2K | $9.37 | +$441.7K | +1.3%3.62M after | 5 lots |
| Sep 7, 2023 (view filing)6:01 PM ET | Sep 5-7 | 2 days | Bandera Partners LLC and 2 others10% Owner | PPurchaseCommon Stock, $0.001 Par Value Per Share | +62.9K | $9.11 | +$572.4K | +1.8%3.57M after | 3 lots |
| Aug 25, 2023 (view filing)6:10 PM ET | Aug 23-25 | 2 days | Bandera Partners LLC and 2 others10% Owner | PPurchaseCommon Stock, $0.001 Par Value Per Share | +42.4K | $9.54 | +$404.7K | +1.2%3.51M after | 3 lots |
| Aug 17, 2023 (view filing)4:31 PM ET | Aug 9 | 8 days | Bandera Partners LLC and 2 others10% Owner | PPurchaseCommon Stock, $0.001 Par Value Per Share | +3.90K | $12.92 | +$50.4K | +0.1%2.81M after | Amended |
| Aug 11, 2023 (view filing)5:16 PM ET | Aug 9-11 | 2 days | Bandera Partners LLC and 2 others10% Owner | PPurchaseCommon Stock, $0.001 Par Value Per Share | +663.1K | $9.89 | +$6.56M | +23.7%3.47M after | From original5 lots |
| Jul 18, 2023 (view filing)4:50 PM ET | Jul 14-17 | 4 days | Bandera Partners LLC and 2 others10% Owner | PPurchaseCommon Stock, $0.001 Par Value Per Share | +22.5K | $13.03 | +$292.8K | +0.8%2.68M after | 2 lots |
| Jul 10, 2023 (view filing)5:28 PM ET | Jul 6-7 | 4 days | Bandera Partners LLC and 2 others10% Owner | PPurchaseCommon Stock, $0.001 Par Value Per Share | +6.37K | $13.08 | +$83.4K | +0.2%2.66M after | 2 lots |
| Jun 28, 2023 (view filing)5:20 PM ET | Jun 26-28 | 2 days | Bandera Partners LLC and 2 others10% Owner | PPurchaseCommon Stock, $0.001 Par Value Per Share | +4.54K | $13.08 | +$59.3K | +0.2%2.65M after | 3 lots |
RBCN Rubicon Technology, Inc.
Director, 10% Owner, Other: See Footnote 12 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 23, 2022 (view filing)4:23 PM ET | Aug 19 | 4 days | Gramm Jefferson and 2 othersDirector, 10% Owner, Other: See Footnote 1 | SSaleCommon Stock, $0.001 Par Value Per Share | −3.06K | $20.00 | −$61.2K | −50.3%3.02K after | |
| Aug 23, 2022 (view filing)4:23 PM ET | Aug 19 | 4 days | Gramm Jefferson and 2 othersDirector, 10% Owner, Other: See Footnote 1 | SSaleCommon Stock, $0.001 Par Value Per Share | −129.9K | $20.00 | −$2.60M | −50.3%128.3K after |