Quick Takeaways
- CNR - Core Natural Resources, Inc. has 20 insiders with reported activity on this page.
- Net insider value flow over the last year: -$7,285,389.
- Recent transaction rows are available for direct filing-level review.
- Info
- Insider Trading
- Financials
- Holders
Insider Transactions Reported by 20 Insiders of Core Natural Resources, Inc.
- Symbol
- CNR on NYSE
- Location
- Canonsburg, PA
What Changed
- Buy value: $502,125; sell value: $7,787,514.
- Net share flow: -71,603.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$7,285,389.
Buys
$502,125
Shares: 7,500
Insiders: 1
Sells
$7,787,514
Shares: 79,103
Insiders: 5
Net
-$7,285,389
Shares: -71,603
Insiders: -4
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 66,560 | $0 | $6,721,990 | -$6,721,990 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 12,543 | $0 | $1,065,524 | -$1,065,524 |
| 9-12 | 7,500 | 0 | $502,125 | $0 | +$502,125 |
Core Natural Resources, Inc. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| James A. Brock | Executive Chair and CEO, Director | $48,019,431 | -$4,122,874 | -7.9% | Mixed | 24 Mar 2026 |
| Paul A. Lang | Chief Executive Officer, Director | $22,834,100 | +$502,125 | +2.2% | Filing P/S | 09 May 2025 |
| William P. Powell | Director | $13,423,781 | Mixed | 02 May 2023 | ||
| Ed Roberson | Director | $7,837,384 | Mixed | 03 May 2022 | ||
| Deck Slone | SVP, Strategy & Public Policy | $6,731,193 | Mixed | 17 Feb 2026 | ||
| Rosemary L. Klein | SVP, CLO & Corp. Sec. | $5,937,970 | -$1,603,100 | -21% | Filing P/S | 19 Mar 2026 |
| Miteshkumar Thakkar | President & CFO | $5,910,823 | Mixed | 17 Feb 2026 | ||
| John T. Mills | Director | $5,290,632 | Mixed | 07 May 2024 | ||
| Joseph P. Platt Jr. | Director | $3,897,667 | Mixed | 17 Feb 2026 | ||
| Martha A. Wiegand | General Counsel & Secretary | $3,263,844 | Mixed | 07 Feb 2024 | ||
| Sophie Bergeron | Director | $3,181,141 | Mixed | 10 May 2022 | ||
| George John Schuller Jr. | SVP, Chief Operating Officer | $2,621,195 | Mixed | 17 Feb 2026 | ||
| Patrick A. Kriegshauser | Director | $2,393,624 | -$234,524 | -8.9% | Mixed | 17 Feb 2026 |
| Kurt R. Salvatori | SVP, Chief Admin. Officer | $2,358,060 | Mixed | 17 Feb 2026 | ||
| Richard A. Navarre | Director | $1,653,717 | -$961,200 | -37% | Filing P/S | 10 Mar 2026 |
| Robert J. Braithwaite Jr. | SVP, Marketing & Sales | $1,563,093 | Mixed | 17 Feb 2026 | ||
| Holly K. Koeppel | Director | $1,435,024 | Mixed | 17 Feb 2026 | ||
| Valli Perera | Director | $894,277 | Mixed | 17 Feb 2026 | ||
| Cassandra Chia-Wei Pan | Director | $785,729 | Mixed | 18 Feb 2025 | ||
| John Rothka | Chief Accounting Officer | $506,855 | -$865,816 | -63% | Filing P/S | 17 Mar 2026 |
Top shareholders of Core Natural Resources, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
|
Company |
14%
|
7,393,330
|
$654,383,597 | — | 31 Dec 2025 | |
| FMR LLC |
13F
13D/G
|
Company |
13%
from 13D/G
|
6,873,252
|
$608,351,608 | — | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
11%
|
5,669,844
|
$501,837,893 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
13D/G
|
Company · STATE STREET CORPORATION |
6.7%
from 13D/G
|
3,707,442
|
$328,145,691 | — | 31 Dec 2025 | |
| DME Capital Management, LP |
13F
13D/G
|
Company · DME Advisors GP, L.L.C. |
4.8%
from 13D/G
|
2,100,480
|
$185,913,485 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13D/G
13F
|
Company |
4.6%
|
2,445,924
|
$170,578,740 | $0 | 30 Jun 2025 | |
| Flat Footed LLC |
13F
|
Company |
2.7%
|
1,387,111
|
$122,773,195 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.3%
|
1,204,139
|
$106,602,842 | — | 31 Dec 2025 | |
| AMERICAN CENTURY COMPANIES INC |
13F
|
Company |
2%
|
1,046,817
|
$92,653,773 | — | 31 Dec 2025 | |
| ADAGE CAPITAL PARTNERS GP, L.L.C. |
13F
|
Company |
1.9%
|
975,000
|
$86,297,250 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
1.5%
|
751,224
|
$66,490,835 | — | 31 Dec 2025 | |
| MAGNOLIA GROUP, LLC |
13F
|
Company |
1.3%
|
669,500
|
$59,257,445 | — | 31 Dec 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
1.1%
|
586,422
|
$51,904,211 | — | 31 Dec 2025 | |
| VICTORY CAPITAL MANAGEMENT INC |
13F
|
Company |
1.1%
|
560,852
|
$49,641,010 | — | 31 Dec 2025 | |
| James A. Brock |
3/4/5
|
Executive Chair and CEO, Director |
1%
|
533,253
|
$48,019,431 | -$4,122,874 | 24 Mar 2026 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.96%
|
494,325
|
$43,752,705 | — | 31 Dec 2025 | |
| JB CAPITAL PARTNERS LP |
13F
|
Company |
0.91%
|
466,779
|
$41,314,609 | — | 31 Dec 2025 | |
| BALYASNY ASSET MANAGEMENT L.P. |
13F
|
Company |
0.89%
|
455,344
|
$40,302,497 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.78%
|
398,954
|
$35,311,422 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.77%
|
396,500
|
$35,094,428 | — | 31 Dec 2025 | |
| PUBLIC SECTOR PENSION INVESTMENT BOARD |
13F
|
Company |
0.68%
|
346,628
|
$30,680,044 | — | 31 Dec 2025 | |
| Merewether Investment Management, LP |
13F
|
Company |
0.66%
|
339,400
|
$30,040,294 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.65%
|
331,563
|
$29,346,612 | — | 31 Dec 2025 | |
| FIRST TRUST ADVISORS LP |
13F
|
Company |
0.63%
|
325,418
|
$28,802,749 | — | 31 Dec 2025 | |
| Point72 Asset Management, L.P. |
13F
|
Company |
0.62%
|
316,987
|
$28,056,519 | — | 31 Dec 2025 | |
| Summit Street Capital Management, LLC |
13F
|
Company |
0.59%
|
305,260
|
$27,018,562 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.59%
|
303,004
|
$26,818,875 | — | 31 Dec 2025 | |
| Goehring & Rozencwajg Associates, LLC |
13F
|
Company |
0.59%
|
302,720
|
$26,793,747 | — | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.57%
|
290,052
|
$25,672,503 | — | 31 Dec 2025 | |
| Paul A. Lang |
3/4/5
|
Chief Executive Officer, Director |
1.2%
|
341,062
|
$22,834,100 | +$502,125 | 09 May 2025 | |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ |
13F
|
Company |
0.5%
|
256,932
|
$22,741,051 | — | 31 Dec 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
0.48%
|
244,478
|
$21,638,748 | — | 31 Dec 2025 | |
| ENVESTNET ASSET MANAGEMENT INC |
13F
|
Company |
0.47%
|
242,388
|
$21,453,764 | — | 31 Dec 2025 | |
| Baird Financial Group, Inc. |
13F
|
Company |
0.46%
|
234,934
|
$20,794,008 | — | 31 Dec 2025 | |
| THOMIST CAPITAL MANAGEMENT, LP |
13F
|
Company |
0.46%
|
234,000
|
$20,739,420 | — | 31 Dec 2025 | |
| Encompass Capital Advisors LLC |
13F
|
Company |
0.44%
|
225,000
|
$19,914,750 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0.42%
|
218,061
|
$19,300,580 | — | 31 Dec 2025 | |
| Skylands Capital, LLC |
13F
|
Company |
0.42%
|
217,713
|
$19,269,778 | — | 31 Dec 2025 | |
| Condire Management, LP |
13F
|
Company |
0.39%
|
201,663
|
$17,849,192 | — | 31 Dec 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.38%
|
193,479
|
$17,124,833 | — | 31 Dec 2025 | |
| MARSHALL WACE, LLP |
13F
|
Company |
0.35%
|
181,783
|
$16,089,614 | — | 31 Dec 2025 | |
| Jeffrey L. Gendell |
13F
|
Individual |
0.35%
|
180,749
|
$15,998,094 | — | 31 Dec 2025 | |
| SCOPUS ASSET MANAGEMENT, L.P. |
13F
|
Company |
0.35%
|
180,000
|
$15,931,800 | — | 31 Dec 2025 | |
| OBERWEIS ASSET MANAGEMENT INC/ |
13F
|
Company |
0.35%
|
178,400
|
$15,790,184 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.34%
|
172,092
|
$15,231,862 | — | 31 Dec 2025 | |
| LSV ASSET MANAGEMENT |
13F
|
Company |
0.33%
|
170,261
|
$15,070,000 | — | 31 Dec 2025 | |
| MOORE CAPITAL MANAGEMENT, LP |
13F
|
Company |
0.33%
|
170,046
|
$15,050,771 | — | 31 Dec 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.31%
|
156,599
|
$13,860,578 | — | 31 Dec 2025 | |
| William P. Powell |
3/4/5
|
Director |
—
class O/S missing
|
130,088
|
$13,423,781 | — | 02 May 2023 | |
| EUBEL BRADY & SUTTMAN ASSET MANAGEMENT INC |
13F
|
Company |
0.29%
|
149,028
|
$13,190,000 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for Core Natural Resources, Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| James A. Brock | CNR | Common stock, par value $0.01 per share | Gift | 9.15% | 24,440 | 291,415 | 24 Mar 2026 | Direct | ||
| James A. Brock | CNR | Common stock, par value $0.01 per share | Gift | -100% | -24,440 | 0 | 24 Mar 2026 | By Lee Ann Brock Trust | ||
| Rosemary L. Klein | CNR | Common stock, par value $0.01 per share | Sale | -21.8% | $1,603,100 | $106.87 | -15,000 | 53,679 | 19 Mar 2026 | Direct |
| James A. Brock | CNR | Common stock, par value $0.01 per share | Sale | -29% | $4,122,874 | $101.15 | -40,760 | 100,000 | 18 Mar 2026 | By SLAT-1 |
| John Rothka | CNR | Common stock, par value $0.01 per share | Sale | -16.2% | $97,660 | $97.66 | -1,000 | 5,190 | 17 Mar 2026 | Direct |
| John Rothka | CNR | Common stock, par value $0.01 per share | Sale | -38% | $348,156 | $91.62 | -3,800 | 6,190 | 10 Mar 2026 | Direct |
| Richard A. Navarre | CNR | Common stock, par value $0.01 per share | Sale | -25% | $550,200 | $91.70 | -6,000 | 18,034 | 10 Mar 2026 | Direct |
| John Rothka | CNR | Common stock, par value $0.01 per share | Tax liability | -0.78% | -79 | 9,990 | 18 Feb 2026 | Direct | ||
| James A. Brock | CNR | Common stock, par value $0.01 per share | Tax liability | -1.08% | -2,960 | 271,415 | 18 Feb 2026 | Direct | ||
| James A. Brock | CNR | Common stock, par value $0.01 per share | Gift | 140,760 | 140,760 | 13 Nov 2025 | By SLAT-1 | |||
| James A. Brock | CNR | Common stock, par value $0.01 per share | Gift | -85.2% | -140,760 | 24,440 | 13 Nov 2025 | Lee Ann Brock Trust | ||
| John Rothka | CNR | Common stock, par value $0.01 per share | Sale | -9.7% | $100,000 | $100.00 | -1,000 | 9,307 | 09 Oct 2025 | Direct |
| John Rothka | CNR | Common stock, par value $0.01 per share | Sale | -8.84% | $95,000 | $95.00 | -1,000 | 10,307 | 08 Oct 2025 | Direct |
| John Rothka | CNR | Common stock, par value $0.01 per share | Sale | -18.1% | $225,000 | $90.00 | -2,500 | 11,307 | 03 Oct 2025 | Direct |
| Richard A. Navarre | CNR | Common stock, par value $0.01 per share | Sale | -18.6% | $411,000 | $82.20 | -5,000 | 21,830 | 25 Sep 2025 | Direct |
| Patrick A. Kriegshauser | CNR | Common stock, par value $0.01 per share | Sale | -11.5% | $234,524 | $77.07 | -3,043 | 23,348 | 17 Sep 2025 | Direct |
| James A. Brock | CNR | Common stock, par value $0.01 per share | Gift | 165,200 | 165,200 | 20 May 2025 | By Lee Ann Brock Trust | |||
| James A. Brock | CNR | Common stock, par value $0.01 per share | Gift | -30.8% | -165,200 | 370,575 | 20 May 2025 | Direct | ||
| Paul A. Lang | CNR | Common stock, par value $0.01 per share | Purchase | 2.25% | $502,125 | $66.95 | 7,500 | 341,062 | 09 May 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.