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OBERWEIS ASSET MANAGEMENT INC/

Position in CNR — Core Natural Resources, Inc.

CIK 937886 LISLE, IL

Position in CNR

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$21,699,023
-$6,557,131 QoQ
Shares Held
271,170
+0.5% QoQ
Ownership
0.546%
of shares outstanding
% of Portfolio
0.45%
of 13F equity value
Holder Rank
#32
of 356 holders
Holding Since
Dec 2025
3 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CNR Over Time

Shares Held

Position Value (USD)

Position in Thermal Coal

Energy · as of Jun 30, 2026

OBERWEIS ASSET MANAGEMENT INC/ holds $21,699,023 across 1 Thermal Coal name. CNR ranks #1 (100.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 CNR
Core Natural Resources, Inc.
This page
271,170 $21,699,023

All Filings in CNR

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3 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $21,699,023 271,170
2026-03-31 $28,256,154 269,800
2025-12-31 $15,790,184 178,400