What is CUSIP 20854L108?

CUSIP 20854L108 is the security identifier used in SEC filing datasets for CEIX - Core Natural Resources Inc - Common Stock.

Who owns CEIX - Core Natural Resources Inc - Common Stock based on 13F filings?

Open this security page to review the newest available 13F ownership history, top reported holders, and period-by-period changes.

Security Snapshot

Core Natural Resources Inc - Common Stock (CEIX) Institutional Ownership

CUSIP: 20854L108

13F Institutional Holders and Ownership History from Q4 2017 to Q4 2025

Latest Period

n/a

Institutions Reporting

Shares (Excl. Options)

Price

$99.61

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Security type / class: Equity / Common Stock
Symbol: CEIX
Shares outstanding: 50,824,012
SEC-reported price per share: $99.61
Insider filing price: $99.61

13F Shares, Excluding Options vs Price

13F Value, Excluding Options

Total Investors

Key facts

CEIX - Core Natural Resources Inc - Common Stock is tracked under CUSIP 20854L108.
Latest finished 13F holder period is not available.
4 significant owners is listed from Schedule 13D/13G reporting.

Change

Holder count moved from 1 to 0 between Q3 2025 and Q4 2025.
SEC-reported value moved from $66,199 to $0.

Research use

You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Schedule 13D/G

Ownership context comes from Schedule 13D/G and available holder history for this CUSIP.

Open SEC evidence

Security key

20854L108

Latest holder period

n/a

13F holders

13D/G owners

CIK / CUSIP context first

CEIX full holder history Core Natural Resources, Inc. SEC filings Core Natural Resources, Inc. company facts Core Natural Resources, Inc. insider transactions

Broader feeds

Latest 13F filings Latest 13D/G filings All securities

Recent Quarterly Holder Reports

Open recent reporting periods for CUSIP 20854L108:

Q4 2025 (0 holders) Q3 2025 (1 holder) Q2 2025 (2 holders) Q1 2025 (4 holders) Q4 2024 (304 holders) Q3 2024 (316 holders) Q2 2024 (301 holders) Q1 2024 (285 holders) Q4 2023 (295 holders) Q3 2023 (277 holders)

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows

Security

CEIX

Filer	Ownership	Holdings Value	Nb Shares	Reporting Name	Report Period
FMR LLC	11%	$276,754,698	3,305,848	FMR LLC	31 Dec 2024
VANGUARD PORTFOLIO MANAGEMENT LLC	5.9%	$297,438,149	2,986,027	Vanguard Portfolio Management	31 Mar 2026
VANGUARD CAPITAL MANAGEMENT LLC	5.1%	$256,166,539	2,571,695	Vanguard Capital Management	31 Mar 2026
DIMENSIONAL FUND ADVISORS LP	5.5%	$134,781,041	1,609,966	Dimensional Fund Advisors LP	31 Dec 2024

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods

Latest

n/a

Rows shown

1-25 of 33

Period	13F Shares, Excl. Options	Value, Excl. Options	Value Change	Puts Notional Value	Calls Notional Value	Price (Median)	Investors
2025 Q4	0	$0	-$66,199			$99.61	0
2025 Q3	793	$66,199				$83.48	1
2025 Q2	826	$58,620	-$2,059,294			$85.13	2
2025 Q1	22,304	$1,725,088	-$2,841,123,140	$0	$0	$83.72	4
2024 Q4	26,808,632	$2,860,310,017	+$52,043,430	$100,095,540	$138,209,856	$106.68	304
2024 Q3	26,330,148	$2,757,082,027	+$146,303,992	$120,512,860	$121,904,481	$104.65	316
2024 Q2	24,880,816	$2,537,669,197	-$44,063,117	$124,201,119	$108,498,702	$102.03	301
2024 Q1	25,477,155	$2,134,001,962	+$6,914,521	$94,076,356	$132,139,760	$83.76	285
2023 Q4	25,664,518	$2,580,042,174	-$101,903,271	$108,260,757	$152,212,473	$100.53	295
2023 Q3	26,630,033	$2,793,738,447	-$98,110,327	$97,387,953	$125,703,162	$104.91	277
2023 Q2	27,982,550	$1,897,193,723	-$45,250,009	$57,184,173	$73,390,763	$67.81	266
2023 Q1	28,644,248	$1,669,078,670	-$24,658,752	$81,187,735	$92,566,332	$58.27	257
2022 Q4	29,035,443	$1,887,088,577	-$6,824,662	$64,216,500	$93,265,000	$65.00	243
2022 Q3	29,327,302	$1,886,262,667	+$34,110,461	$33,512,000	$76,271,000	$64.32	213
2022 Q2	29,126,722	$1,438,876,170	+$152,571,954	$39,158,000	$24,995,000	$49.38	191
2022 Q1	26,317,155	$990,250,344	+$20,594,815	$10,326,000	$21,208,000	$37.63	177
2021 Q4	26,016,171	$590,438,054	+$41,879,087	$3,285,000	$7,222,000	$22.71	143
2021 Q3	23,929,179	$622,506,572	+$13,815,943	$1,601,000	$4,236,000	$26.02	133
2021 Q2	23,110,961	$426,873,430	+$18,202,863	$3,644,000	$2,003,000	$18.47	120
2021 Q1	22,999,531	$223,524,013	+$392,332	$1,309,000	$410,000	$9.72	115
2020 Q4	22,995,267	$165,797,847	+$33,302,252	$260,000	$258,000	$7.21	106
2020 Q3	18,727,197	$82,977,267	-$7,772,648	$344,000	$302,000	$4.43	92
2020 Q2	20,358,043	$103,228,574	-$7,198,631	$1,014,000	$234,000	$5.07	111
2020 Q1	21,906,166	$80,833,585	-$24,898,280	$1,524,000	$1,597,000	$3.69	115
2019 Q4	22,506,974	$326,563,618	-$17,975,780	$2,488,000	$218,000	$14.51	152