Form 4 Filing for Arcosa, Inc.

This filing details a transaction by LINDSAY JOHN W, a director at Arcosa, Inc. (ACA). On September 30, 2026, 3 units of "Arcosa Phantom Stock Units" were acquired. These units are economically equivalent to common stock and will be settled in cash upon the reporting person's termination of services. The acquisition occurred under the Arcosa, Inc. Deferred Plan for Director Fees. The transaction code was "A" for acquisition, and the price per unit was $146.15. Following this transaction, LINDSAY JOHN W holds 7405 shares of Arcosa Phantom Stock Units. The reporting owner is a director, not an officer or ten percent owner. The filing is a Form 4.