Company profile

Core Natural Resources, Inc. Insider Trading

CNR

Every SEC Form 4 insider trading filing for Core Natural Resources, Inc. (CNR) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?

Exchange
NYSE
Sector
Silver Ores
CIK
0001710366
Filings
109
Insiders
20
Last filing
2026-04-30

Activity summary

No insider transactions in the last 30 days. The most recent was on April 30, 2026, when Keating Ronald C bought 1,390 shares. 109 filings from 20 insiders are on record below.

Three year balance

Buy and sell value by quarter, Q2 23 to Q2 26. Core Natural Resources, Inc. insiders are net sellers across the period shown.

Q2 23Q3 23Q4 23Q1 24Q2 24Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26

Bars below the rule are sales, above are purchases. Largest quarter on the chart is $7.4M.

No insider activity recorded for CNR in the last 90 days.

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue
Apr 30, 2026Keating Ronald CCNR
Award
1,390
Apr 30, 2026Doheny Edward L IICNR
Award
1,390
Mar 24, 2026Brock James ACNR
Gift
24,440
Mar 24, 2026Brock James ACNR
Gift
24,440
Mar 19, 2026Klein Rosemary LCNR
Sale
10,000$105.00$1.05M

45 more transactions hidden

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Top insiders

By total value filed.

Brock James AChief Executive Officer2 filings$4.4M
Klein Rosemary LSr. VP, General Counsel & Sec2 filings$1.6M
Navarre Richard ADirector2 filings$961K
Rothka JohnChief Accounting Officer6 filings$873K
Koeppel Holly KDirector2 filings$664K

Institutional Ownership

Top 13F-HR holders of Core Natural Resources, Inc. as of 2026-06-30

↓ decreasing
Total reported AUM
$1.30B
QoQ change
-72.0%
Reporting period
2026-06-30
#1
BlackRock, Inc.
CIK 0002012383
$436.5M
5.5M shares
#2
State Street Corp
CIK 0000093751
$316.4M
4.0M shares
#3
BlackRock, Inc.
CIK 0002012383
$124.4M
1.6M shares

Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →