Form 4 Filing for Matthew J. Lustig - BXP, Inc.

This Form 4 filing details a transaction by Matthew J. Lustig, a director at BXP, Inc. On September 30, 2026, Mr. Lustig acquired 490.92 Phantom Stock Units at a price of $61.11 per unit. These units convert to BXP common stock on a 1-for-1 basis. The award is part of BXP's 2021 Stock Incentive Plan, where non-employee directors can elect to receive these units in lieu of cash compensation. The Phantom Stock Units are settled in BXP common stock, with fractional units settled in cash, following the director's retirement. Mr. Lustig's post-transaction holdings include 22,221.37 Phantom Stock Units, which includes 214.79 units received through dividend equivalent rights on July 31, 2026. The filing was signed on October 1, 2026, by Kelli A. DiLuglio as Attorney-in-Fact.