Joseph P. Platt Jr.
Joseph P. Platt Jr.'s purchase track record
Joseph P. Platt Jr. has only 1 open-market purchase with a full 6 months of price history after it -- too few to call a track record yet.
| Purchase | Stock | Amount | 3 months | 6 months | S&P 500, 6 mo. |
|---|---|---|---|---|---|
| 11/18/2025 | GLRE | $65K | +10.7% | +38.6% | +11.1% |
Computed by MarketWall from SEC Form 4 filings and daily closing prices (close on the purchase date to the close about 3 and 6 months later). Companies that have since delisted are not included. Past results, not investment advice.
Associated companies
Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 10, 2026
CNR Shares See Options Activity Amid Energy Price Rise. Options traders are active in Core Natural Resources shares, suggesting expectations of a significant move. The company has benefited from higher energy prices amid global conflict, which has helped its earnings. A recent quarter review shows its performance relative to peers in the upstream sector.
Transaction History
| GLRE | ▲ Buy | Grant | 7,992 | $0 | 8/7/2026 | View on chart |
| GLRE | ▼ Sell | Open Market | 11,747 | $198K | 5/26/2026 | View on chart |
| GLRE | ▼ Sell | Open Market | 23,613 | $425K | 5/19/2026 | View on chart |
| GLRE | ▼ Sell | Open Market | 12,000 | $210K | 5/14/2026 | View on chart |
| GLRE | ▼ Sell | Open Market | 820 | $14K | 5/13/2026 | View on chart |
| GLRE | ▼ Sell | Open Market | 6,820 | $119K | 5/12/2026 | View on chart |
| CNR | ▲ Buy | Grant | 1,610 | $0 | 2/17/2026 | View on chart |
| GLRE | ▲ Buy | Open Market | 5,000 | $65K | 11/18/2025 | View on chart |
| GLRE | ▲ Buy | Grant | 8,046 | — | 8/7/2025 | View on chart |
| CNR | ▲ Buy | Grant | 1,674 | $0 | 2/18/2025 | View on chart |
| CNR | ▲ Buy | Grant | 1,674 | $0 | 2/18/2025 | View on chart |
| GLRE | ▲ Buy | Grant | 8,393 | $0 | 8/9/2024 | View on chart |
| CNR | ▲ Buy | Grant | 1,733 | $0 | 5/7/2024 | View on chart |
| CNR | ▼ Sell | Open Market | 10,227 | $1.0M | 9/15/2023 | View on chart |
| GLRE | ▲ Buy | Grant | 9,342 | $0 | 8/7/2023 | View on chart |
| CNR | ▲ Buy | Grant | 2,347 | $0 | 5/2/2023 | View on chart |
| GLRE | ▲ Buy | Grant | 23,427 | $0 | 8/5/2022 | View on chart |
| CNR | ▼ Sell | Open Market | 11,377 | $584K | 5/23/2022 | View on chart |
| CNR | ▼ Sell | Open Market | 2,800 | $145K | 5/23/2022 | View on chart |
| CNR | ▲ Buy | Grant | 3,062 | $0 | 5/3/2022 | View on chart |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 16, 2026
Greenlight Capital Q2 Letter and Valuation Analysis
Greenlight Capital released its Q2 2026 letter, outlining recent performance and strategy. A SeekingAlpha piece notes the company’s book value is 0.7x, suggesting a low valuation until ROE is examined. These reports give a clearer view of the firm’s fundamentals and potential upside.
Greenlight Capital Q2 Letter and Valuation Analysis. Greenlight Capital released its Q2 2026 letter, outlining recent performance and strategy. A SeekingAlpha piece notes the company’s book value is 0.7x, suggesting a low valuation until ROE is examined. These reports give a clearer view of the firm’s fundamentals and potential upside.