Boston Properties LTD Partnership Form 4 BOSTON PROPERTIES LTD PARTNERSHIP / BRYAN J KOOP ownership change

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

KOOP BRYAN J

(Last) (First) (Middle)

C/O BOSTON PROPERTIES, INC.

800 BOYLSTON STREET

(Street)

BOSTON MA 02199

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
BOSTON PROPERTIES LTD PARTNERSHIP [ N/A ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
Executive Vice President of GP

3. Date of Earliest Transaction (Month/Day/Year)
02/12/2024

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
LTIP Units(1)	(2)	02/12/2024		A		8,633		(2)(3)	(2)	Common OP Units	8,633	$0.25	140,443(4)	D

Explanation of Responses:

1. Represents units of limited partnership interest in the Issuer earned (i.e., for which the performance-based hurdles have been met) pursuant to Boston Properties, Inc.'s ("BXP's"), the Issuer's sole general partner's, 2021 Multi-Year Long-Term Incentive Program (the "Program").

2. 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 one share of BXP's common stock. LTIP Units have no expiration date.

3. The 8,633 LTIP Units earned pursuant to the Program vested in full upon being earned. Each earned LTIP Unit and Common OP Unit acquired upon conversion of such LTIP Unit is subject to an additional post-vesting holding period pursuant to which such LTIP Unit and Common OP Unit generally may not be transferred, and the redemption right associated with the Common OP Unit may not be exercised, until one year after the vesting date.

4. Reflects the forfeiture of 7,097 LTIP Units originally issued on February 2, 2021 pursuant to the Program that were previously reported as beneficially owned by the Reporting Person, but remained subject to certain performance-based vesting hurdles based on the Issuer's total shareholder return for the period from February 2, 2021 to February 1, 2024.

Remarks:

	/s/ Kelli A. DiLuglio, as Attorney-in-Fact	02/14/2024
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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