Core Natural Resources, Inc. (CNR) Insider Trading
Over the last 3 months, CNR insiders made 0 open-market buys and 6 sales, a net sale of -$6.7M (SEC Form 4). Over the last 6 months, 266 institutions increased and 235 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
6
Net (3m)
-$6.7M
Insider trades by month Buys Sells
Nov
Apr
May
Sep
Oct
Mar
Context3-month price +11.2%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| May 1, 2026 | Doheny Edward L IIdirector | Grant | 1,390 | — |
| May 1, 2026 | Keating Ronald Cdirector | Grant | 1,390 | — |
| Mar 20, 2026 | Klein Rosemary Lofficer: SVP, CLO & Corp. Sec. | Sell | 5,000 | $110.62 |
| Mar 20, 2026 | Klein Rosemary Lofficer: SVP, CLO & Corp. Sec. | Sell | 10,000 | $105.00 |
| Mar 19, 2026 | Rothka Johnofficer: Chief Accounting Officer | Sell | 1,000 | $97.66 |
| Mar 19, 2026 | Brock James Adirector, officer: Executive Chair and CEO | Sell | 40,760 | $101.15 |
| Mar 11, 2026 | Rothka Johnofficer: Chief Accounting Officer | Sell | 3,800 | $91.62 |
| Mar 11, 2026 | NAVARRE RICHARD Adirector | Sell | 6,000 | $91.70 |
| Feb 23, 2026 | Rothka Johnofficer: Chief Accounting Officer | Tax | 79 | $88.96 |
| Feb 23, 2026 | Brock James Adirector, officer: Executive Chair and CEO | Tax | 2,960 | $88.96 |
| Feb 19, 2026 | Slone Deckofficer: SVP, Strategy & Public Policy | Grant | 5,060 | — |
| Feb 19, 2026 | Slone Deckofficer: SVP, Strategy & Public Policy | Tax | 487 | $88.96 |
| Feb 19, 2026 | Slone Deckofficer: SVP, Strategy & Public Policy | Tax | 731 | $88.96 |
| Feb 19, 2026 | Schuller George John JRofficer: SVP, Chief Operating Officer | Grant | 7,530 | — |
| Feb 19, 2026 | Schuller George John JRofficer: SVP, Chief Operating Officer | Tax | 713 | $88.96 |
| Feb 19, 2026 | Schuller George John JRofficer: SVP, Chief Operating Officer | Tax | 1,069 | $88.96 |
| Feb 19, 2026 | Salvatori Kurt R.officer: SVP, Chief Admin. Officer | Tax | 459 | $88.96 |
| Feb 19, 2026 | Salvatori Kurt R.officer: SVP, Chief Admin. Officer | Tax | 689 | $88.96 |
| Feb 19, 2026 | Platt Joseph P JRdirector | Grant | 1,610 | — |
| Feb 19, 2026 | Brock James Adirector, officer: Executive Chair and CEO | Grant | 21,190 | — |
| Feb 19, 2026 | KOEPPEL HOLLY Kdirector | Grant | 1,610 | — |
| Feb 19, 2026 | Braithwaite Robert J. Jr.officer: SVP, Marketing & Sales | Grant | 4,440 | — |
| Feb 19, 2026 | Klein Rosemary Lofficer: SVP, CLO & Corp. Sec. | Tax | 746 | $88.96 |
| Feb 19, 2026 | Klein Rosemary Lofficer: SVP, CLO & Corp. Sec. | Tax | 497 | $88.96 |
| Feb 19, 2026 | Klein Rosemary Lofficer: SVP, CLO & Corp. Sec. | Grant | 5,060 | — |
| Feb 19, 2026 | NAVARRE RICHARD Adirector | Grant | 2,200 | — |
| Feb 19, 2026 | Thakkar Miteshkumarofficer: President & CFO | Tax | 1,223 | $88.96 |
| Feb 19, 2026 | Thakkar Miteshkumarofficer: President & CFO | Tax | 806 | $88.96 |
| Feb 19, 2026 | Thakkar Miteshkumarofficer: President & CFO | Grant | 8,730 | — |
| Feb 19, 2026 | Brock James Adirector, officer: Executive Chair and CEO | Tax | 66,365 | $88.96 |
Source: CNR SEC Form 4 filings, latest May 1, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their CNR positions over the last 6 months (SEC Form 13F).
Increased
266
New positions
139
Reduced
235
Sold out
92
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 7.4M | May 13, 2026 |
| BLACKROCK, INC. | Increased | 7.4M | Feb 12, 2026 |
| FMR LLC | Reduced | 6.9M | Feb 17, 2026 |
| VANGUARD GROUP INC | Increased | 5.7M | Jan 29, 2026 |
| FMR LLC | Reduced | 4.0M | May 15, 2026 |
| STATE STREET CORP | Increased | 4.0M | May 15, 2026 |
| STATE STREET CORP | Increased | 3.7M | Feb 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 3.0M | May 8, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 2.2M | May 15, 2026 |
| DME CAPITAL MANAGEMENT, LP | Reduced | 2.1M | Feb 17, 2026 |
| DME CAPITAL MANAGEMENT, LP | Reduced | 1.9M | May 15, 2026 |
| FLAT FOOTED LLC | Reduced | 1.4M | Feb 17, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 1.4M | Feb 12, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 1.4M | May 7, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.3M | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.