Form 4 Filing for L.B. Foster Company

Jamie F. O'Neill, SVP, Human Resources at L.B. Foster Company, reported a disposition of 269 shares of Common Stock on May 22, 2026, at a price of $38.11 per share. This transaction was subject to tax withholding for vested restricted stock. Following this transaction, Mr. O'Neill directly holds 16,239 shares. Additionally, the filing notes 1,127 Performance Restricted Stock Units under the 2024-2026 LTIP and 475 Performance Restricted Stock Units under the 2025-2027 LTIP, which will settle in December 2026 and December 2027, respectively. The filing also includes information about shares held in the L.B. Foster Company 401(k) Plan.