CORE NATURAL RESOURCES INC CNR
COM SHS · Common Stock · CUSIP 218937100 · ISIN US2189371006
- SectorMaterials
- IndustrySilver Ores
- HeadquartersCanonsburg, PA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($21.0m this quarter). Holder counts are more reliable. Shares outstanding: 50.4m as of 2026-04-30, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $104.73. Options: 14 managers hold calls ($159.9m notional), 12 hold puts ($104.8m).
Trends to Q1 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q1 2024 | 1 |
| Q2 2024 | 1 |
| Q3 2024 | 0 |
| Q4 2024 | 18 |
| Q1 2025 | 314 |
| Q2 2025 | 305 |
| Q3 2025 | 329 |
| Q4 2025 | 341 |
| Q1 2026 | 380 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 1 | 0 |
| Q3 2024 | 0 | 1 |
| Q4 2024 | 18 | 0 |
| Q1 2025 | 304 | 9 |
| Q2 2025 | 147 | 160 |
| Q3 2025 | 169 | 146 |
| Q4 2025 | 164 | 173 |
| Q1 2026 | 213 | 151 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $148.6m | $49.1m | 0.33 |
| Q3 2025 | $306.6m | $56.2m | 0.18 |
| Q4 2025 | $113.1m | $40.1m | 0.35 |
| Q1 2026 | $159.9m | $104.8m | 0.66 |
Biggest buyers
| FIL Ltd | New | +472.9k |
| Goehring & Rozencwajg Associates, LLC | Added | +405.5k |
| Merewether Investment Management, LP | Added | +387.2k |
| Encompass Capital Advisors LLC | Added | +275.0k |
| STATE STREET CORP | Added | +269.9k |
| UBS Group AG | Added | +257.1k |
| JANE STREET GROUP, LLC | New | +237.5k |
| WELLINGTON MANAGEMENT GROUP LLP | Added | +191.1k |
| SCOPUS ASSET MANAGEMENT, L.P. | Added | +184.0k |
| Old West Investment Management, LLC | Added | +180.4k |
Biggest sellers
| FMR LLC | Reduced | -2.8m |
| Flat Footed LLC | Reduced | -1.3m |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Reduced | -575.0k |
| AMERICAN CENTURY COMPANIES INC | Reduced | -527.8k |
| CITADEL ADVISORS LLC | Sold out | -290.1k |
| DME Capital Management, LP | Reduced | -242.3k |
| MOORE CAPITAL MANAGEMENT, LP | Sold out | -170.0k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -137.9k |
| Public Sector Pension Investment Board | Reduced | -116.7k |
| BANK OF AMERICA CORP /DE/ | Reduced | -95.4k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $38.5m367.5k shares |
| JANE STREET GROUP, LLC | Added | $26.4m252.3k shares |
| NOMURA HOLDINGS INC | Unchanged | $25.3m242.0k shares |
| CITADEL ADVISORS LLC | Added | $22.4m214.1k shares |
| Flat Footed LLC | New | $9.9m95.0k shares |
| IMC-Chicago, LLC | Added | $9.1m86.7k shares |
| Jefferies Financial Group Inc. | Added | $8.8m84.2k shares |
| SIG BROKERAGE, LP | Unchanged | $5.8m55.0k shares |
| GROUP ONE TRADING LLC | Added | $5.7m54.5k shares |
| LMR Partners LLP | New | $5.2m50.0k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $39.7m378.6k shares |
| SCOPUS ASSET MANAGEMENT, L.P. | New | $20.9m200.0k shares |
| CITADEL ADVISORS LLC | Added | $15.6m148.9k shares |
| JANE STREET GROUP, LLC | Added | $14.9m142.3k shares |
| GROUP ONE TRADING LLC | Added | $5.4m51.6k shares |
| IMC-Chicago, LLC | Added | $3.4m32.2k shares |
| PEAK6 LLC | Added | $1.6m14.9k shares |
| Walleye Capital LLC | Added | $1.1m10.9k shares |
| SIMPLEX TRADING, LLC | Reduced | $932.1k8.9k shares |
| TWO SIGMA INVESTMENTS, LP | New | $597.0k5.7k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| STATE STREET CORP 13G · institution +1.1 pts · filed 2026-05-12 | 7.8% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.9% |
| FMR LLC 13G · institution -2.3 pts · filed 2026-08-06 | 5.7% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.1% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q1 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2024 | 0 | — | 1 | $2.4m | $1.8m |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 1 | $663.7k | — |
| Q2 2025 | 1 | $502.1k | 0 | — | — |
| Q3 2025 | 0 | — | 2 | $645.5k | — |
| Q4 2025 | 0 | — | 1 | $420.0k | $420.0k |
| Q1 2026 | 0 | — | 4 | $6.7m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-03-19 | Klein Rosemary L SVP, CLO & Corp. Sec. | Sold | $1.6m15.0k shares |
| 2026-03-18 | Brock James A Executive Chair and CEO, director · By SLAT-1 | Sold | $4.1m40.8k shares |
| 2026-03-17 | Rothka John Chief Accounting Officer | Sold | $97.7k1.0k shares |
| 2026-03-10 | NAVARRE RICHARD A Director | Sold | $550.2k6.0k shares |
| 2026-03-10 | Rothka John Chief Accounting Officer | Sold | $348.2k3.8k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 7.4m $777.4m | Added +29.2k |
| FMR LLC 0.02% of their portfolio | 4.0m $423.7m | Reduced -2.8m |
| STATE STREET CORP 0.01% of their portfolio | 4.0m $416.5m | Added +269.9k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.02% of their portfolio | 3.0m $309.8m | First filing |
| VANGUARD CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 2.2m $229.2m | First filing |
| DME Capital Management, LP 6.10% of their portfolio | 1.9m $194.6m | Reduced -242.3k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 1.4m $143.8m | Reduced -13.3k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.3m $133.7m | Added +72.4k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 774.6k $81.1m | Added +23.3k |
| Merewether Investment Management, LP 1.47% of their portfolio | 726.6k $76.1m | Added +387.2k |
| Goehring & Rozencwajg Associates, LLC 3.99% of their portfolio | 708.2k $74.2m | Added +405.5k |
| MAGNOLIA GROUP, LLC 11.74% of their portfolio | 602.5k $63.1m | Reduced -67.0k |
| AMERICAN CENTURY COMPANIES INC 0.03% of their portfolio | 519.0k $54.4m | Reduced -527.8k |
| VICTORY CAPITAL MANAGEMENT INC 0.03% of their portfolio | 508.6k $53.3m | Reduced -52.2k |
| Encompass Capital Advisors LLC 2.13% of their portfolio | 500.0k $52.4m | Added +275.0k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 495.6k $51.9m | Added +1.2k |
| UBS Group AG 0.01% of their portfolio | 475.2k $49.8m | Added +257.1k |
| FIL Ltd 0.04% of their portfolio | 472.9k $49.5m | New |
| JB CAPITAL PARTNERS LP 8.47% of their portfolio | 466.8k $48.9m | Unchanged |
| MILLENNIUM MANAGEMENT LLC 0.04% of their portfolio | 448.6k $47.0m | Reduced -137.9k |
| Balyasny Asset Management L.P. 0.08% of their portfolio | 410.8k $43.0m | Reduced -44.5k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.06% of their portfolio | 400.0k $41.9m | Reduced -575.0k |
| SCOPUS ASSET MANAGEMENT, L.P. 1.20% of their portfolio | 364.0k $38.1m | Added +184.0k |
| MORGAN STANLEY 0.00% of their portfolio | 362.4k $38.0m | Reduced -34.1k |
| VANGUARD FIDUCIARY TRUST CO 0.01% of their portfolio | 338.8k $35.5m | First filing |
| FIRST TRUST ADVISORS LP 0.03% of their portfolio | 334.6k $35.0m | Added +9.2k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 327.3k $34.3m | Reduced -4.3k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 321.1k $33.6m | Added +191.1k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 319.5k $33.5m | Added +16.5k |
| Summit Street Capital Management, LLC 4.52% of their portfolio | 305.3k $32.0m | Unchanged |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 303.5k $31.8m | Reduced -95.4k |
| Old West Investment Management, LLC 3.33% of their portfolio | 293.2k $30.7m | Added +180.4k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 273.9k $28.7m | Added +31.5k |
| OBERWEIS ASSET MANAGEMENT INC/ 0.83% of their portfolio | 269.8k $28.3m | Added +91.4k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 253.6k $27.9m | Added +60.2k |
| Baird Financial Group, Inc. 0.04% of their portfolio | 250.1k $26.2m | Added +15.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 249.5k $26.1m | Added +5.0k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio | 244.0k $25.6m | Reduced -12.9k |
| JANE STREET GROUP, LLC 0.03% of their portfolio | 237.5k $24.9m | New |
| Portolan Capital Management, LLC 1.32% of their portfolio | 237.0k $24.8m | Added +106.8k |
| Point72 Asset Management, L.P. 0.04% of their portfolio | 231.7k $24.3m | Reduced -85.3k |
| Public Sector Pension Investment Board 0.07% of their portfolio | 230.0k $24.1m | Reduced -116.7k |
| Thomist Capital Management, LP 8.05% of their portfolio | 224.8k $23.5m | Reduced -9.2k |
| Energy Income Partners, LLC 0.38% of their portfolio | 223.4k $23.4m | Added +91.1k |
| Skylands Capital, LLC 2.93% of their portfolio | 213.6k $22.4m | Reduced -4.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 212.4k $22.2m | Added +163.3k |
| MARSHALL WACE, LLP 0.02% of their portfolio | 208.4k $21.8m | Added +26.6k |
| Condire Management, LP 2.04% of their portfolio | 201.7k $21.1m | Unchanged |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 200.6k $21.0m | Added +144.7k |
| Invesco Ltd. 0.00% of their portfolio | 193.3k $20.2m | Added +21.2k |
| Walleye Capital LLC 0.12% of their portfolio | 180.9k $18.9m | Added +42.1k |
| VAN ECK ASSOCIATES CORP 0.01% of their portfolio | 179.0k $18.8m | Added +49.2k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 161.4k $16.9m | Added +4.8k |
| Woodline Partners LP 0.06% of their portfolio | 152.1k $15.9m | Added +67.7k |
| Forest Avenue Capital Management LP 1.00% of their portfolio | 151.5k $15.9m | New |
| LSV ASSET MANAGEMENT 0.03% of their portfolio | 151.4k $15.9m | Reduced -18.8k |
| GENDELL JEFFREY L 0.21% of their portfolio | 150.0k $15.7m | Reduced -30.7k |
| EUBEL BRADY & SUTTMAN ASSET MANAGEMENT INC 1.82% of their portfolio | 146.6k $15.3m | Reduced -2.5k |
| Mudita Advisors LLP 3.09% of their portfolio | 144.4k $15.1m | New |
| GeoSphere Capital Management, LLC 8.69% of their portfolio | 137.9k $14.4m | Added +52.9k |
| PDT Partners, LLC 0.82% of their portfolio | 131.5k $13.8m | Added +76.1k |
| WINTON GROUP Ltd 0.46% of their portfolio | 125.8k $13.2m | New |
| HOURGLASS CAPITAL, LLC 2.71% of their portfolio | 124.4k $13.0m | Reduced -819 |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 124.3k $13.0m | Added +2.2k |
| Nuveen, LLC 0.00% of their portfolio | 118.6k $12.4m | Added +5.0k |
| Yaupon Capital Management LP 0.59% of their portfolio | 113.2k $11.9m | New |
| Susquehanna Portfolio Strategies, LLC 0.18% of their portfolio | 112.9k $11.8m | Unchanged |
| Hartree Partners, LP 2.38% of their portfolio | 104.8k $11.0m | New |
| CWA Asset Management Group, LLC 0.38% of their portfolio | 104.6k $11.0m | New |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 100.4k $10.5m | Reduced -3.9k |
| PRELUDE CAPITAL MANAGEMENT, LLC 0.79% of their portfolio | 98.2k $10.3m | Added +2.6k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 97.7k $10.2m | New |
| Squarepoint Ops LLC 0.02% of their portfolio | 95.0k $10.0m | New |
| Legal & General Group Plc 0.00% of their portfolio | 91.0k $9.5m | Reduced -13.4k |
| Tejara Capital Ltd 3.00% of their portfolio | 86.8k $9.1m | Reduced -5.1k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.01% of their portfolio | 85.8k $9.0m | Added +59.7k |
| Wealth High Governance Asset Management Ltda. 1.27% of their portfolio | 77.9k $8.2m | New |
| Jump Financial, LLC 0.12% of their portfolio | 77.4k $8.1m | New |
| Marnell Management LLC 5.15% of their portfolio | 74.0k $7.7m | Added +5.8k |
| NOMURA HOLDINGS INC 0.06% of their portfolio | 70.3k $7.4m | Added +26.8k |
| THOMPSON SIEGEL & WALMSLEY LLC 0.13% of their portfolio | 68.9k $7.2m | Reduced -17.5k |
| Hosking Partners LLP 0.26% of their portfolio | 68.8k $7.2m | Reduced -932 |
| SEI INVESTMENTS CO 0.01% of their portfolio | 67.5k $7.1m | Added +29.6k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 62.7k $6.6m | Added +1.5k |
| J. Goldman & Co LP 0.30% of their portfolio | 61.5k $6.4m | New |
| Lighthouse Investment Partners, LLC 0.24% of their portfolio | 59.8k $6.3m | Reduced -42.8k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 59.6k $6.2m | New |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 59.0k $5.2m | Reduced -27.4k |
| Oxbow Advisors, LLC 0.52% of their portfolio | 58.8k $6.2m | New |
| CLOVERFIELDS CAPITAL GROUP, LP 1.93% of their portfolio | 57.1k $6.0m | Reduced -1.2k |
| BW Gestao de Investimentos Ltda. 0.27% of their portfolio | 57.1k $6.0m | Reduced -45.4k |
| EXCHANGE TRADED CONCEPTS, LLC 0.05% of their portfolio | 56.0k $5.9m | New |
| STEADFAST CAPITAL MANAGEMENT LP 0.22% of their portfolio | 55.6k $5.8m | New |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 52.3k $5.5m | Added +4.3k |
| Ballast Asset Management, LP 2.37% of their portfolio | 50.9k $5.3m | Added +1.2k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 50.2k $5.3m | Added +26.2k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 48.8k $5.1m | Added +19.6k |
| Aventail Capital Group, LP 0.23% of their portfolio | 45.6k $4.8m | Added +27.5k |
| ALGERT GLOBAL LLC 0.07% of their portfolio | 45.5k $4.8m | Reduced -13.6k |
| Flat Footed LLC 1.57% of their portfolio | 45.0k $4.7m | Reduced -1.3m |