Mario Gabelli's KOP Position Overview
Mario Gabelli (via Gamco Investors, Inc. Et Al) currently holds 28,814 shares of Koppers Holdings Inc. (KOP) worth $1.11 M, representing 0.01% of the portfolio. First purchased in 2025-Q2, this short-term holding has been held for 4 quarters.
Based on 13F filings, Mario Gabelli has maintained this position in KOP for several quarters, showing initial confidence in the investment. Largest reduction occurred in Q4 2025, reducing 11,000 shares.
Analysis based on 13F filings available since 2013 Q2
Mario Gabelli's Koppers Holdings (KOP) Holding Value Over Time
Track share changes against reported price movement
Quarterly Koppers Holdings (KOP) Trades by Mario Gabelli
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | -1,900 | Reduce 6.19% | 28,814 | $38.68 |
| Q4 2025 | -11,000 | Reduce 26.37% | 30,714 | $27.08 |
| Q3 2025 | -5,800 | Reduce 12.21% | 41,714 | $28.00 |
| Q2 2025 | +47,514 | New Buy | 47,514 | $32.15 |
Mario Gabelli's Koppers Holdings Investment FAQs
Mario Gabelli first purchased Koppers Holdings Inc. (KOP) in Q2 2025, acquiring 47,514 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mario Gabelli has held Koppers Holdings Inc. (KOP) for 4 quarters since Q2 2025.
Mario Gabelli's largest addition to Koppers Holdings Inc. (KOP) was in Q2 2025, adding 47,514 shares worth $1.53 M.
According to the latest 13F filing for Q1 2026, Mario Gabelli's firm, Gamco Investors, Inc. Et Al, owns 28,814 shares of Koppers Holdings Inc. (KOP), valued at approximately $1.11 M.
As of the Q1 2026 filing, Koppers Holdings Inc. (KOP) represents approximately 0.01% of Mario Gabelli's publicly disclosed stock portfolio, making it one of their key holdings.
Mario Gabelli's peak holding in Koppers Holdings Inc. (KOP) was 47,514 shares, as reported at the end of Q2 2025.