KOOP BRYAN J 4

What happened

• Bryan J. Koop, Executive Vice President of the general partner of Boston Properties Ltd. Partnership, was granted 13,143 LTIP units on January 30, 2026. The award is reported as an acquisition (derivative) at $0.25 per unit, a nominal reported value of $3,286.
• These are LTIP Units (long-term incentive plan units) — a derivative equity award rather than an open-market purchase or sale.

Key details

• Transaction date: 2026-01-30; Filing date: 2026-02-02 (filed within the typical 2-business-day Form 4 window).
• Price/value: $0.25 per LTIP Unit; total reported value $3,286.
• Shares/units after transaction: total holdings after this grant not specified in the provided filing.
• Footnotes: F1 — LTIP Units are limited partnership units that can convert to Common OP Units and may be redeemable for cash equal to the fair market value of a BXP share (or, at BXP’s election, exchanged for one share of BXP common stock). LTIP Units have no expiration. F2 — The 13,143 LTIP Units vest in four equal annual installments beginning January 15, 2027.

Context

• This was a compensation grant (award) of derivative units, a routine form of executive long-term incentive. LTIP Units are not immediate stock purchases; value realization depends on conversion/redemption terms and vesting. Grants like this are common and do not on their own indicate the insider’s market view.