Platt Joseph P JR
- SEC CIK
- 0001399967
In the past year, 1 open-market purchase filing worth $64.8K and 4 sale filings worth $967.1K.
Current role at each company
- GLRE Greenlight Capital Re, Ltd.Directoras of Aug 7, 2026
- CNR Core Natural Resources, Inc.Directoras of Feb 24, 2026
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
- $64.8K
- 1 filing
- Sold
- $967.1K
- 4 filings
- Net
- −$902.3K
- Bought minus sold
- Companies
- 1
- With open-market trades
Trades
Every Form 4 that lists Platt Joseph P JR 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.
GLRE Greenlight Capital Re, Ltd.
Director5 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| May 27, 2026 (view filing) | May 26 | 1 day | Platt Joseph P JRDirector | SSale | −11.7K | $16.87 | −$198.2K | −100.0%0 after | |
| May 20, 2026 (view filing) | May 19 | 1 day | Platt Joseph P JRDirector | SSale | −23.6K | $18.01 | −$425.3K | −66.8%11.7K after | |
| May 18, 2026 (view filing) | May 14 | 4 days | Platt Joseph P JRDirector | SSale | −12.0K | $17.50 | −$210.0K | −25.3%35.4K after | |
| May 14, 2026 (view filing) | May 12-13 | 2 days | Platt Joseph P JRDirector | SSale | −7.64K | $17.50 | −$133.7K | −13.9%47.4K after | 2 lots |
| Nov 19, 2025 (view filing) | Nov 18 | 1 day | Platt Joseph P JRDirector | PPurchase | +5.00K | $12.97 | +$64.8K | New position5.00K after |
CNR Core Natural Resources, Inc.
Director2 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 19, 2023 (view filing) | Sep 15 | 4 days | Platt Joseph P JRDirector | SSaleCommon stock, par value $0.01 per share | −10.2K | $98.33 | −$1.01M | −23.1%34.0K after | |
| May 25, 2022 (view filing) | May 23 | 2 days | Platt Joseph P JRDirector | SSaleCommon stock, par value $0.01 per share | −14.2K | $51.45 | −$729.4K | −25.3%41.8K after | 2 lots |