Form 4 Filing for Diane B. Owen

Diane B. Owen, a director at FOSTER L B CO (FSTR), reported a disposition of 96 shares of Common Stock on May 22, 2026. The transaction, coded as "F" (payment of tax), occurred at a price of $38.11 per share. Following this transaction, Ms. Owen holds 78,397 shares of Common Stock. The shares were withheld to cover taxes related to the vesting of stock from the 2025 Annual Director Equity Award. The filing was signed by Diane B. Owen via her attorney-in-fact on May 27, 2026.