[SCHEDULE 13G/A] COPT DEFENSE PROPERTIES SEC Filing

Rhea-AI Filing Summary

AllianceBernstein L.P. filed an amended Schedule 13G reporting beneficial ownership in COPT Defense Properties (CDP). The firm reported 8,457,373 shares, representing 7.5% of the class as of 09/30/2025. It holds 7,268,115 shares with sole voting power, 0 with shared voting power, 8,365,717 with sole dispositive power, and 91,656 with shared dispositive power.

The filing states the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control. AllianceBernstein notes it operates under independent management from its majority owner, Equitable Holdings, Inc., which reports beneficial ownership separately.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

COPT Defense Properties

(Name of Issuer)

REIT

(Title of Class of Securities)

22002T108

(CUSIP Number)

09/30/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 22002T108

1

Names of Reporting Persons

AllianceBernstein L.P.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 7,268,115.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 8,365,717.00
8	Shared Dispositive Power 91,656.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,457,373.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.5 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: COPT Defense Properties
(b)	Address of issuer's principal executive offices: 6711 COLUMBIA GATEWAY DRIVE, SUITE 300, COLUMBIA, MD 21046
Item 2.
(a)	Name of person filing: AllianceBernstein L.P. ("AllianceBernstein L.P.")
(b)	Address or principal business office or, if none, residence: 501 Commerce Street, Nashville, TN 37203 All media outlets, please contact Jennifer Will at AllianceBernstein (212-969-1157) with any questions. All other questions can be directed to Section13USFilings@alliancebernstein.com.
(c)	Citizenship: Delaware
(d)	Title of class of securities: REIT
(e)	CUSIP No.: 22002T108
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 8,457,373 shares acquired solely for investment purposes on behalf of client discretionary investment advisory accounts.* *AllianceBernstein L.P. is a majority owned subsidiary of Equitable Holdings, Inc. ("EQH"). AllianceBernstein operates under independent management and makes independent decisions from EQH and its respective subsidiaries, and EQH calculates and reports beneficial ownership separately from AllianceBernstein pursuant to guidance provided by the Securities and Exchange Commission in Release Number 34-39538 (January 12, 1998).
(b)	Percent of class: 7.5 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 7,268,115
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 8,365,717
	(iv) Shared power to dispose or to direct the disposition of: 91,656
Item 5.	Ownership of 5 Percent or Less of a Class.
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

AllianceBernstein L.P.

Signature:	Melissa Guerra
Name/Title:	VP/Director of Compliance
Date:	11/13/2025

FAQ

What did AllianceBernstein report about CDP (COPT Defense Properties)?

AllianceBernstein reported beneficial ownership of 8,457,373 shares of CDP, equal to 7.5% of the class as of 09/30/2025.

How much voting power did AllianceBernstein report for CDP (CDP)?

It reported 7,268,115 shares with sole voting power and 0 with shared voting power.

What dispositive powers did AllianceBernstein disclose for CDP?

It disclosed 8,365,717 shares with sole dispositive power and 91,656 with shared dispositive power.

What is the Schedule 13G/A event date for CDP?

The date of the event requiring the filing is 09/30/2025.

Why is the 13G/A classification relevant for CDP?

The filer certified the holdings were acquired and are held in the ordinary course, not to change or influence control of the issuer.

Who signed the filing and when?

It was signed by Melissa Guerra, VP/Director of Compliance, on 11/13/2025.