OWEN D. THOMAS - 30 Jan 2026 Form 4 Insider Report for BOSTON PROPERTIES LTD PARTNERSHIP

Role: Chief Executive Officer of GP, Director
Signature: /s/ Kelli A. DiLuglio, as Attorney-in-Fact
Issuer symbol: N/A
Transactions as of: 30 Jan 2026
Net transactions value: +$18,266
Form type: 4
Filing time: 02 Feb 2026, 15:55:52 UTC
Previous filing: 22 Dec 2025
Next filing: 17 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
THOMAS OWEN D	Chief Executive Officer of GP, Director	C/O BXP, 599 LEXINGTON AVENUE, NEW YORK	/s/ Kelli A. DiLuglio, as Attorney-in-Fact	02 Feb 2026	0001339081

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction		LTIP Units	Award	$18,266	+73,063	+7.1%	$0.2500	1,105,695	30 Jan 2026	Common OP Units	73,063		Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents units of limited partnership in the Issuer issued pursuant to BXP, Inc.'s ("BXP"), the Issuer's general partner, equity based incentive programs ("LTIP Units"). Conditioned upon minimum allocations to the capital accounts of the LTIP Units for federal income tax purposes, each LTIP Unit may be converted, at the election of the Issuer or the holder, into a common unit of limited partnership interest in the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be presented for redemption, at the election of the holder, for cash equal to the then fair market value of a share of BXP's common stock except that BXP may, at its election, acquire each Common OP Unit so presented for redemption for one share of BXP's common stock. LTIP Units have no expiration date.
F2	The 73,063 LTIP Units were fully vested upon grant pursuant to the Reporting Person's employment agreement.

Content

Represents units of limited partnership in the Issuer issued pursuant to BXP, Inc.'s ("BXP"), the Issuer's general partner, equity based incentive programs ("LTIP Units"). Conditioned upon minimum allocations to the capital accounts of the LTIP Units for federal income tax purposes, each LTIP Unit may be converted, at the election of the Issuer or the holder, into a common unit of limited partnership interest in the Issuer ("Common OP Unit"). Each Common OP Unit acquired upon conversion of an LTIP Unit may be presented for redemption, at the election of the holder, for cash equal to the then fair market value of a share of BXP's common stock except that BXP may, at its election, acquire each Common OP Unit so presented for redemption for one share of BXP's common stock. LTIP Units have no expiration date.

The 73,063 LTIP Units were fully vested upon grant pursuant to the Reporting Person's employment agreement.