Form 4 Filing by LIPPARD GREGORY W for L.B. Foster Company

This filing details a transaction by LIPPARD GREGORY W, SVP -Rail at L.B. Foster Company. On May 22, 2026, Mr. Lippard disposed of 905 shares of Common Stock at a price of $38.11 per share, resulting in 75,031 shares remaining. The filing also notes that 1,002 Performance Restricted Stock Units earned under the 2025-2027 LTIP and 4,427 Performance Restricted Stock Units earned under the 2024-2026 LTIP are included in the post-transaction share count. Additionally, shares were withheld to cover taxes related to the vesting of restricted stock. The filing also includes a limited power of attorney granted by Mr. Lippard to several individuals, authorizing them to act on his behalf for SEC filings.