Klein Rosemary L (CIK 1310202) reported 8 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-20). Recent activity: Sell CNR (10,000 shares), Sell CNR (5,000 shares), Buy CNR (5,060 shares), Sell CNR (497 shares), Sell CNR (746 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-20 | Core Natural Resources, Inc. (CNR) | SVP, CLO & Corp. Sec. | Sell | 10,000 | $1.1M |
| 2026-03-20 | Core Natural Resources, Inc. (CNR) | SVP, CLO & Corp. Sec. | Sell | 5,000 | $553,100 |
| 2026-02-19 | Core Natural Resources, Inc. (CNR) | SVP, CLO & Corp. Sec. | Buy | 5,060 | $0 |
| 2026-02-19 | Core Natural Resources, Inc. (CNR) | SVP, CLO & Corp. Sec. | Sell | 497 | $44,213 |
| 2026-02-19 | Core Natural Resources, Inc. (CNR) | SVP, CLO & Corp. Sec. | Sell | 746 | $66,364 |
| 2025-02-20 | Core Natural Resources, Inc. (CNR) | SVP, CLO & Corp. Sec. | Buy | 5,124 | $0 |
| 2025-02-20 | Core Natural Resources, Inc. (CNR) | SVP, CLO & Corp. Sec. | Buy | 5,124 | $0 |
| 2025-01-16 | Core Natural Resources, Inc. (CNR) | SVP, CLO & Corp. Sec. | Buy | 54,602 | $0 |
Source: SEC Form 4 filings · as of 2026-03-20