Guy Spier's CNR Position Overview
Guy Spier (via Aquamarine Zurich Ag) currently holds 0 shares of Core Natural Resources, Inc. (CNR) worth $0, representing 0.00% of the portfolio. First purchased in 2025-Q1, this short-term holding has been held for 4 quarters.
Based on 13F filings, Guy Spier has maintained this position in CNR for several quarters, showing initial confidence in the investment. Largest reduction occurred in Q4 2025, reducing 10,740 shares.
Analysis based on 13F filings available since 2013 Q2
Guy Spier's Core Natural Resources (CNR) Holding Value Over Time
Track share changes against reported price movement
Quarterly Core Natural Resources (CNR) Trades by Guy Spier
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | -10,740 | Sold Out | 0 | $0.00 |
| Q1 2025 | +10,740 | New Buy | 10,740 | $77.09 |
Guy Spier's Core Natural Resources Investment FAQs
Guy Spier first purchased Core Natural Resources, Inc. (CNR) in Q1 2025, acquiring 10,740 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Guy Spier has held Core Natural Resources, Inc. (CNR) for 4 quarters since Q1 2025.
Guy Spier's largest addition to Core Natural Resources, Inc. (CNR) was in Q1 2025, adding 10,740 shares worth $828,000.
According to the latest 13F filing for Q4 2025, Guy Spier's firm, Aquamarine Zurich Ag, owns 0 shares of Core Natural Resources, Inc. (CNR), valued at approximately $0.
As of the Q4 2025 filing, Core Natural Resources, Inc. (CNR) represents approximately 0.00% of Guy Spier's publicly disclosed stock portfolio, making it one of their key holdings.
Guy Spier's peak holding in Core Natural Resources, Inc. (CNR) was 10,740 shares, as reported at the end of Q1 2025.