# EDGAR Filing Document

**Accession Number:** 0000276914
**File Stem:** 0001410368-25-014222
**Filing Date:** 2025-10
**Character Count:** 48398
**Document Hash:** 025a07b3f25488763677f69a60d1bc61
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-25-014222.hdr.sgml**: 20251010

**ACCESSION NUMBER**: 0001410368-25-014222

**CONFORMED SUBMISSION TYPE**: N-CEN

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20250731

**FILED AS OF DATE**: 20251010

**DATE AS OF CHANGE**: 20251010

**EFFECTIVENESS DATE**: 20251010

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** LORD ABBETT DEVELOPING GROWTH FUND, INC.
- **CENTRAL INDEX KEY:** 0000276914

**ORGANIZATION NAME:**
- **EIN:** 132958970
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 0731

**FILING VALUES:**
- **FORM TYPE:** N-CEN
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-02871
- **FILM NUMBER:** 251387709

**BUSINESS ADDRESS:**
- **STREET 1:** 30 HUDSON ST.
- **CITY:** JERSEY CITY
- **STATE:** NJ
- **ZIP:** 07302
- **BUSINESS PHONE:** 201-827-2000

**MAIL ADDRESS:**
- **STREET 1:** 30 HUDSON ST.
- **CITY:** JERSEY CITY
- **STATE:** NJ
- **ZIP:** 07302

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** LORD ABBETT DEVELOPING GROWTH FUND INC /NEW/
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** DEVELOPING GROWTH SHARES INC
- **DATE OF NAME CHANGE:** 19600201

## Series and Classes Contracts Data

### LORD ABBETT DEVELOPING GROWTH FUND INC (Series ID: S000006834)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000018473 | Class A      | LAGWX           |
| C000018475 | Class C      | LADCX           |
| C000018476 | Class P      | LADPX           |
| C000018477 | Class I      | LADYX           |
| C000054855 | Class F      | LADFX           |
| C000054856 | Class R2     | LADQX           |
| C000054857 | Class R3     | LADRX           |
| C000151972 | Class R4     | LADSX           |
| C000151973 | Class R5     | LADTX           |
| C000151974 | Class R6     | LADVX           |
| C000188220 | Class F3     | LOGWX           |

## Internal

```

REPORT OF INDEPENDENT REGISTERED
PUBLIC ACCOUNTING FIRM
To the shareholders and the Board of Directors of Lord
Abbett Developing Growth Fund, Inc.
In planning and performing our audit of the financial
statements of Lord Abbett Developing Growth Fund, Inc.
(the "Fund") as of and for the year ended July 31, 2025, in
accordance with the standards of the Public Company
Accounting Oversight Board (United States) (PCAOB), we
considered the Fund's internal control over financial
reporting, including controls over safeguarding securities,
as a basis for designing our auditing procedures for the
purpose of expressing our opinion on the financial
statements and to comply with the requirements of Form N-
CEN, but not for the purpose of expressing an opinion on
the effectiveness of the Fund's internal control over
financial reporting. Accordingly, we express no such
opinion.
The management of the Fund is responsible for establishing
and maintaining effective internal control over financial
reporting. In fulfilling this responsibility, estimates and
judgments by management are required to assess the
expected benefits and related costs of controls. A fund's
internal control over financial reporting is a process
designed to provide reasonable assurance regarding the
reliability of financial reporting and the preparation of
financial statements for external purposes in accordance
with generally accepted accounting principles. A fund's
internal control over financial reporting includes those
policies and procedures that (1) pertain to the maintenance
of records that, in reasonable detail, accurately and fairly
reflect the transactions and dispositions of the assets of the
fund; (2) provide reasonable assurance that transactions are
recorded as necessary to permit preparation of financial
statements in accordance with generally accepted
accounting principles, and that receipts and expenditures of
the fund are being made only in accordance with
authorizations of management and directors of the fund;
and (3) provide reasonable assurance regarding prevention
or timely detection of unauthorized acquisition, use, or
disposition of a fund's assets that could have a material
effect on the financial statements.
Because of its inherent limitations, internal control over
financial reporting may not prevent or detect
misstatements. Also, projections of any evaluation of
effectiveness to future periods are subject to the risk that
controls may become inadequate because of changes in
conditions or that the degree of compliance with the
policies or procedures may deteriorate.
A deficiency in internal control over financial reporting
exists when the design or operation of a control does not
allow management or employees, in the normal course of
performing their assigned functions, to prevent or detect
misstatements on a timely basis. A material weakness is a
deficiency, or a combination of deficiencies, in internal
control over financial reporting, such that there is a
reasonable possibility that a material misstatement of the
fund's annual or interim financial statements will not be
prevented or detected on a timely basis.
Our consideration of the Fund's internal control over
financial reporting was for the limited purpose described in
the first paragraph and would not necessarily disclose all
deficiencies in internal control that might be material
weaknesses under standards established by the PCAOB.
However, we noted no deficiencies in the Fund's internal
control over financial reporting and its operation, including
controls for safeguarding securities, that we consider to be
a material weakness, as defined above, as of July 31, 2025.
This report is intended solely for the information and use of
management and the Board of Directors of the Fund and
the Securities and Exchange Commission and is not
intended to be and should not be used by anyone other than
these specified parties.
/s/ Deloitte & Touche LLP
New York, New York
September 25, 2025

```

## Exempt

```

Annual CCO Certification Pursuant to Form N-
CEN Item G.1.a.v

In regard to the interfund lending program, I certify
that the Lord Abbett Family of Funds and Lord,
Abbett & Co. LLC have established procedures
reasonably designed to achieve compliance with the
terms and conditions of the exemptive order issued by
the U.S. Securities and Exchange Commission, which
are designed to achieve the following objectives: (a)
that the lnterfund Loan Rate will be higher than the
Repo Rate, but lower than the Bank Loan Rate; (b)
compliance with the collateral requirements as set
forth in the Application; (c) compliance with the
percentage limitations on interfund borrowing and
lending; (d) allocation of interfund borrowing and
lending demand in an equitable manner and in
accordance with procedures established by the Fund
Board; and (e) that the interest rate on any Interfund
Loan does not exceed the interest rate on any third-
party borrowings of a borrowing Fund at the time of
the Interfund Loan.

				   	August 1, 2025
/s/ Mary Ann Picciotto
Global Chief Compliance Officer
The Lord Abbett Family of Funds

(II	Certain capitalized terms used in this certification have
the meanings given to them in the Lord Abbett Family
of Funds' and Lord, Abbett & Co. LLC's joint
exemptive application filed with the U.S. Securities and
Exchange Commission on June 22. 2016.

```

# Form N-CEN: Annual Report for Registered Investment Companies

## N-CEN: Filer Information
**Submission Type:** N-CEN
**CIK:** 0000276914

## N-CEN: Series/Class (Contract) Information

**Series ID Record:1**
- **Series ID:** S000006834

**Class ID Record:1**
- **Class ID:** C000054855

**Class ID Record:2**
- **Class ID:** C000018475

**Class ID Record:3**
- **Class ID:** C000018477

**Class ID Record:4**
- **Class ID:** C000018476

**Class ID Record:5**
- **Class ID:** C000054856

**Class ID Record:6**
- **Class ID:** C000151972

**Class ID Record:7**
- **Class ID:** C000188220

**Class ID Record:8**
- **Class ID:** C000018473

**Class ID Record:9**
- **Class ID:** C000151974

**Class ID Record:10**
- **Class ID:** C000151973

**Class ID Record:11**
- **Class ID:** C000054857

### N-CEN: Part A: General Information

**Item A.1.a - Report for period ending:** 2025-07-31

**Item A.1.b - Does this report cover a period of less than 12 months?:** No

## N-CEN: Part B: Information About the Registrant

- **Item B.1.a - Full name of Registrant:** LORD ABBETT DEVELOPING GROWTH FUND, INC.

- **Item B.1.b - Investment Company Act file number:** 811-02871

- **Item B.1.c - CIK:** 0000276914

- **Item B.1.d - LEI:** 549300HWJ2W28SDTJF85

- **Item B.2.a - Street 1:** 30 HUDSON STREET

- **Item B.2.b - City:** JERSEY CITY

- **Item B.2.c - State:** NJ

- **Item B.2.e - Zip Code:** 07302

- **Item B.2.f - Telephone:** 201-827-2000

- **Item B.2.g - Public Website:** www.lordabbett.com

### Item B.3 - Location of books and records

**Location books Record: 1**

- **a. Name of person (e.g., a custodian of records):** State Street Bank and Trust Company

- **b. Street 1:** 1 Congress Street

- **Street 2:** Suite 1

- **c. City:** Boston

- **d. State, if applicable:** MA

- **e. Foreign country, if applicable:** US

- **f. Zip code and zip code extension, or foreign postal code:** 02114

- **g. Telephone number:** 617-786-3000

- **h. Briefly describe the books and records kept at this location:** Custody and Accounting Records.

- **Item B.4.a - Is this the first filing by the Registrant?:** No

- **Item B.4.b - Is this the last filing by the Registrant?:** No

- **Item B.5.a - Is the Registrant part of a family of investment companies?:** Yes

- **Item B.5.a.i - Full name of family of investment companies:** LORDABBETT

### Item B.6 - Organization

- [x] a. Open-end management investment company registered under the Act on Form N-1A

- [ ] b. Closed-end management investment company registered under the Act on Form N-2

- [ ] c. Separate account offering variable annuity contracts which is registered under the Act as a management investment company on Form N-3

- [ ] d. Separate account offering variable annuity contracts which is registered under the Act as a unit investment trust on Form N-4

- [ ] e. Small business investment company registered under the Act on Form N-5

- [ ] f. Separate account offering variable insurance contracts which is registered under the Act as a unit investment trust on Form N-6

- [ ] g. Unit investment trust registered under the Act on Form N-8B-2

- **Item B.6.i - Total number of Series:** 1

- **Item B.7 - Is the Registrant the issuer of a class of securities registered under the Securities Act?:** Yes

### Item B.8 - Directors

| Name                        | Is Interested Person?   | Other Investment Company File Numbers                                                                                                         |
|:---|:---|:---|
| Karla M. Rabusch            | No                      | 811-02145, 811-23383, 811-07538, 811-02924, 811-00005, 811-03691, 811-23655, 811-07988, 811-03942, 811-10371, 811-05876, 811-06650, 811-05476 |
| Douglas B. Sieg             | Yes                     | 811-06650, 811-23655, 811-00005, 811-03691, 811-10371, 811-02924, 811-07538, 811-02145, 811-07988, 811-05476, 811-03942, 811-05876, 811-23383 |
| Lorin Patrick Taylor Radtke | No                      | 811-02145, 811-07988, 811-00005, 811-03691, 811-07538, 811-23655, 811-05876, 811-02924, 811-06650, 811-05476, 811-10371, 811-23383, 811-03942 |
| Charles O. Prince           | No                      | 811-03691, 811-00005, 811-10371, 811-07988, 811-05476, 811-02924, 811-05876, 811-23655, 811-03942, 811-23383, 811-07538, 811-02145, 811-06650 |
| Kathleen M. Lutito          | No                      | 811-02924, 811-02145, 811-23655, 811-03942, 811-00005, 811-05476, 811-06650, 811-10371, 811-07538, 811-23383, 811-03691, 811-07988, 811-05876 |
| Mark A. Schmid              | No                      | 811-23655, 811-10371, 811-03942, 811-00005, 811-03691, 811-02924, 811-06650, 811-07988, 811-07538, 811-23383, 811-05476, 811-02145, 811-05876 |
| Leah Song Richardson        | No                      | 811-23655, 811-03942, 811-03691, 811-06650, 811-02924, 811-23383, 811-07988, 811-10371, 811-07538, 811-02145, 811-05476, 811-00005, 811-05876 |
| Evelyn E. Guernsey          | No                      | 811-07538, 811-05876, 811-10371, 811-03691, 811-03942, 811-07988, 811-23383, 811-06650, 811-02924, 811-02145, 811-05476, 811-23655, 811-00005 |
| Peter McNamara              | No                      | 811-05476, 811-10371, 811-23655, 811-05876, 811-02924, 811-07988, 811-03942, 811-07538, 811-06650, 811-00005, 811-23383, 811-02145, 811-03691 |

### Item B.9. Chief compliance officer.

**Chief compliance officer Record: 1**

- **a. Full Name:** MARY ANN PICCIOTTO

- **b. CRD Number, if any:** 004235357

- **c. Street Address 1:** 30 HUDSON STREET

- **d. City:** JERSEY CITY

- **e. State, if applicable:** NJ

- **f. Foreign country, if applicable:** US

- **g. Zip code:** 07302-3973

- **h. Telephone number:** XXXXXX

- **i. Has the chief compliance officer changed since the last filing?:** No

If the chief compliance officer is compensated or employed by any person other than the Registrant, provide:

**CCO employer Record: 1**

- **i. Name of the person:** —

- **ii. Person’s IRS Employer Identification Number:** —

### Item B.10. Matters for security holder vote.

- **Were any matters submitted by the Registrant for its security holders’ vote during the reporting period?** No

- **Item B.11.a - Have there been any material legal proceedings?:** No

- **Item B.11.b - Has any proceeding previously reported been terminated?:** No

- **Item B.12.a - Were any claims with respect to the Registrant filed under a fidelity bond?:** No

- **Item B.13.a - Are the Registrant's officers or directors covered under any insurance policy?:** Yes

- **Item B.13.a.i - If yes, were any claims filed under the policy during the reporting period?:** No

- **Item B.14 - Did an affiliated person provide any form of financial support to the Registrant?:** No

- **Item B.15.a.i - Release numbers:**
  - IC-32192
  - IC-23122

### Item B.16. Principal underwriters.

**Principal underwriter Record: 1**

- **i. Full name:** Lord Abbett Distributor LLC

- **ii. SEC file number:** 8-00216

- **iii. CRD number:** 000000530

- **iv. LEI, if any:** N/A

- **v. State, if applicable:** NJ

- **vi. Foreign country, if applicable:** US

- **vii. Is the principal underwriter an affiliated person...?:** Yes

- **b. Have any principal underwriters been hired or terminated during the reporting period?** No

### Item B.17. Independent public accountant.

**Public accountant Record: 1**

- **a. Full Name:** Deloitte & Touche LLP

- **b. PCAOB Number:** 34

- **c. LEI, if any:** 254900WYZPGQGKV3RF07

- **d. State, if applicable:** NY

- **e. Foreign country, if applicable:** US

- **f. Has the independent public accountant changed since the last filing?** No

- **Item B.18 - Did an independent public accountant's report on internal control note any material weaknesses?:** No

- **Item B.19 - Did an independent public accountant issue an opinion other than an unqualified opinion?:** No

- **Item B.20 - Have there been material changes in the method of valuation?:** No

- **Item B.21 - Have there been any changes in accounting principles or practices?:** No

- **Item B.22.a - Were any payments made to shareholders as a result of an error in calculating NAV?:** No

- **Item B.23 - Did the Registrant pay any dividend or make any distribution required to be accompanied by a written statement?:** No

## Part C: Additional Questions for Management Investment Companies

### Management Investment Record: 1 - LORD ABBETT DEVELOPING GROWTH FUND INC

**Item C.1. Background information.**

- **a. Full Name of the Fund:** LORD ABBETT DEVELOPING GROWTH FUND INC

- **b. Series identification number, if any:** S000006834

- **c. LEI:** 549300HWJ2W28SDTJF85

- **d. Is this the first filing on this form by the Fund?:** No

**Item C.2. Classes of open-end management investment companies.**

- **a. How many Classes of shares of the Fund (if any) are authorized?:** 11

- **b. How many new Classes of shares of the Fund were added during the reporting period?:** 0

- **c. How many Classes of shares of the Fund were terminated during the reporting period?:** 0

**d. For each Class with shares outstanding, provide the information requested below:**

|   Shares Outstanding Record | i. Full name of Class   | ii. Class identification number, if any   | iii. Ticker symbol, if any   |
|---:|:---|:---|:---|
|                           1 | Class F                 | C000054855                                | LADFX                        |
|                           2 | Class C                 | C000018475                                | LADCX                        |
|                           3 | Class I                 | C000018477                                | LADYX                        |
|                           4 | Class P                 | C000018476                                | LADPX                        |
|                           5 | Class R2                | C000054856                                | LADQX                        |
|                           6 | Class R4                | C000151972                                | LADSX                        |
|                           7 | Class F3                | C000188220                                | LOGWX                        |
|                           8 | Class A                 | C000018473                                | LAGWX                        |
|                           9 | Class R6                | C000151974                                | LADVX                        |
|                          10 | Class R5                | C000151973                                | LADTX                        |
|                          11 | Class R3                | C000054857                                | LADRX                        |

**Item C.3. Type of fund.**

- [ ] Exchange-Traded Fund or Exchange-Traded Managed Fund or offers a Class that itself is an Exchange-Traded Fund or Exchange-Traded Managed Fund

-   [ ] i. Exchange-Traded Fund

-   [ ] ii. Exchange-Traded Managed Fund

- [ ] b. Index Fund

- [ ] c. Seeks to achieve performance results that are a multiple of a benchmark, the inverse of a benchmark, or a multiple of the inverse of a benchmark

- [ ] d. Interval Fund

- [ ] e. Fund of Funds

- [ ] f. Master-Feeder Fund

- [ ] g. Money Market Fund

- [ ] h. Target Date Fund

-   [ ] i. Underlying fund to a variable annuity or variable life insurance contract

- [x] N/A

**Item C.4 - Does the Fund seek to operate as a 'non-diversified company'?** No

**Item C.5 - Does the fund invest in a controlled foreign corporation?** No

**Item C.6. Securities lending.**

- **a. Is the Fund authorized to engage in securities lending transactions?** Yes

- **b. Did the Fund lend any of its securities during the reporting period?** Yes

  - **i. If yes, during the reporting period, did any borrower fail to return the loaned securities by the contractual deadline with the result that:**

    - **1. The Fund (or it securities lending agent) liquidated collateral pledged to secure the loaned securities?** No

    - **2. The Fund was otherwise adversely impacted?** No

**c. Provide the information requested below about each securities lending agent, if any, retained by the Fund:**

**Securities Lending Record: 1**

- **i. Full name of securities lending agent:** Citibank, National Association

- **ii. LEI, if any:** E57ODZWZ7FF32TWEFA76

- **iii. Is the securities lending agent an affiliated person...?** No

- **iv. Does the securities lending agent... indemnify the Fund against borrower default?** Yes

- **v. If the entity providing the indemnification is not the securities lending agent, provide the following information:**

  **Idemnity Providers Record: 1**

  - **1. Name of person providing indemnification:** —

  - **2. LEI, if any:** —

- **vi. Did the Fund exercise its indemnification rights during the reporting period?** No

**e. Types of payments made to one or more securities lending agents and cash collateral managers (check all that apply):**

- [x] Revenue sharing split

- [ ] Fee-based revenue split (other than administrative fee)

- [ ] Administrative fee

- [x] Cash collateral reinvestment fee

- [ ] Indemnification fee

- [ ] Other

- [ ] N/A

- **f. Provide the monthly average of the value of portfolio securities on loan during the reporting period:** $17,707,255.36

- **g. Provide the net income from securities lending activities:** $302,672.00

**Item C.7. Reliance on certain statutory exemption and rules.**

Did the Fund rely on the following rules?

- Rule 17a-7 (17 CFR 270.17a-7)

- Rule 22d-1 (17 CFR 270.22d-1)

- Rule 32a-4 (17 CFR 270.32a-4)

- Rule 12d1-1 (17 CFR 270.12d1-1)

- Rule 18f-4 (17 CFR 270.18f-4)

- Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))

**Item C.8. Expense limitations.**

- **a. Did the Fund have an expense limitation arrangement?** Yes

- **b. Were any expenses reduced or waived?** Yes

- **c. Are the fees waived subject to recoupment?** No

- **d. Were any expenses previously waived recouped during the period?** No

**Item C.9. Investment advisers.**

**Investment Advisers Record: 1**

- **i. Full name:** Lord, Abbett & Co. LLC

- **ii. SEC file number:** 801-6997

- **iii. CRD number:** 000110391

- **iv. LEI, if any:** 549300JN4JHMFPO31Y81

- **v. State, if applicable:** NJ

- **vi. Foreign country, if applicable:** US

- **vii. Was the investment adviser hired during the reporting period?:** No

**Item C.10. Transfer agents.**

**Transfer Agents Record: 1**

- **i. Full name:** BNY Mellon Investment Servicing (US) Inc.

- **ii. SEC file number:** 084-01761

- **iii. LEI, if any:** 549300CFZQLI9QMJ1Z03

- **iv. State, if applicable:** MA

- **v. Foreign country, if applicable:** US

- **vi. Is the transfer agent an affiliated person of the Fund or its investment adviser(s)?:** No

- **vii. Is the transfer agent a sub-transfer agent?:** No

- **b. Has a transfer agent been hired or terminated during the reporting period?** No

**Item C.11. Pricing services.**

**Pricing Services Record: 1**

- **i. Full name:** London Stock Exchange Group PLC

- **ii. LEI, if any, or provide and describe other identifying number:** 213800QAUUUP6I445N30

- **v. Is the pricing service an affiliated person of the Fund or its investment adviser(s)?:** No

**Pricing Services Record: 2**

- **i. Full name:** PricingDirect Inc.

- **ii. LEI, if any, or provide and describe other identifying number:** 549300WIC0TOJ7N7GD54

- **iii. State, if applicable:** NY

- **iv. Foreign country, if applicable:** US

- **v. Is the pricing service an affiliated person of the Fund or its investment adviser(s)?:** No

**Pricing Services Record: 3**

- **i. Full name:** Bloomberg L.P.

- **ii. LEI, if any, or provide and describe other identifying number:** 549300B56MD0ZC402L06

- **iii. State, if applicable:** NY

- **iv. Foreign country, if applicable:** US

- **v. Is the pricing service an affiliated person of the Fund or its investment adviser(s)?:** No

**Pricing Services Record: 4**

- **i. Full name:** ICE Data Services, Inc.

- **ii. LEI, if any, or provide and describe other identifying number:** 13-3668779

- **iii. State, if applicable:** GA

- **iv. Foreign country, if applicable:** US

- **v. Is the pricing service an affiliated person of the Fund or its investment adviser(s)?:** No

**Pricing Services Record: 5**

- **i. Full name:** S&P Global Inc.

- **ii. LEI, if any, or provide and describe other identifying number:** Y6X4K52KMJMZE7I7MY94

- **iii. State, if applicable:** NY

- **iv. Foreign country, if applicable:** US

- **v. Is the pricing service an affiliated person of the Fund or its investment adviser(s)?:** No

- **b. Was a pricing service hired or terminated during the reporting period?** No

**Item C.12. Custodians.**

**a. Provide the following information about each person that provided custodial services to the Fund during the reporting period:**

**Custodians Record: 1**

- **i. Full name:** Euroclear Bank

- **ii. LEI, if any:** 549300OZ46BRLZ8Y6F65

- **v. Is the custodian an affiliated person of the Fund or its investment adviser(s)?:** No

- **vi. Is the custodian a sub-custodian?:** Yes

- **vii. With respect to the custodian, check below to indicate the type of custody:** Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)

**Custodians Record: 2**

- **i. Full name:** State Street Bank and Trust Company

- **ii. LEI, if any:** 571474TGEMMWANRLN572

- **iii. State, if applicable:** MA

- **iv. Foreign country, if applicable:** US

- **v. Is the custodian an affiliated person of the Fund or its investment adviser(s)?:** No

- **vi. Is the custodian a sub-custodian?:** No

- **vii. With respect to the custodian, check below to indicate the type of custody:** Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))

**Custodians Record: 3**

- **i. Full name:** State Street Bank and Trust Company (Edinburgh, GB, Branch)

- **ii. LEI, if any:** 571474TGEMMWANRLN572

- **v. Is the custodian an affiliated person of the Fund or its investment adviser(s)?:** No

- **vi. Is the custodian a sub-custodian?:** Yes

- **vii. With respect to the custodian, check below to indicate the type of custody:** Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)

- **b. Was a custodian hired or terminated during the reporting period?** No

**Item C.13 - Shareholder Servicing Agents**

**Shareholder Servicing Agents Record: 1**

- **i. Full name:** BNY Mellon Investment Servicing (US) Inc.

- **ii. LEI, if any:** 549300CFZQLI9QMJ1Z03

- **iii. State, if applicable:** MA

- **iv. Foreign country, if applicable:** US

- **v. Is the shareholder servicing agent an affiliated person?:** No

- **vi. Is the shareholder servicing agent a sub-shareholder servicing agent?:** No

- **b. Has a shareholder servicing agent been hired or terminated during the reporting period?** No

**Item C.14. Administrators.**

**a. Provide the following information about each administrator of the Fund:**

**Administrators Record: 1**

- **i. Full name:** Lord, Abbett & Co. LLC

- **ii. LEI, if any, or other identifying number:** 549300JN4JHMFPO31Y81

- **iii. State, if applicable:** NJ

- **iv. Foreign country, if applicable:** US

- **v. Is the administrator an affiliated person of the Fund or its investment adviser(s)?:** Yes

- **vi. Is the administrator a sub-administrator?:** No

- **b. Has a third-party administrator been hired or terminated during the reporting period?** No

**Item C.15 - Affiliated broker-dealers.**

No Affiliated Broker-Dealers reported.

**Item C.16. Brokers.**

**a. For each of the ten brokers that received the largest dollar amount of brokerage commissions...**

**Brokers Record: 1**

- **i. Full name of broker:** Morgan Stanley & Co. LLC

- **ii. SEC file number:** 8-15869

- **iii. CRD number:** 000008209

- **iv. LEI, if any:** 9R7GPTSO7KV3UQJZQ078

- **v. State, if applicable:** NY

- **vi. Foreign country, if applicable:** US

- **vii. Gross commissions paid by the Fund for the reporting period:** $191,079.83

**Brokers Record: 2**

- **i. Full name of broker:** Cowen and Company, LLC

- **ii. SEC file number:** 8-22522

- **iii. CRD number:** 000007616

- **iv. LEI, if any:** SUVUFHICNZMP2WKHG940

- **v. State, if applicable:** NY

- **vi. Foreign country, if applicable:** US

- **vii. Gross commissions paid by the Fund for the reporting period:** $130,311.99

**Brokers Record: 3**

- **i. Full name of broker:** BofA Securities, Inc.

- **ii. SEC file number:** 8-69787

- **iii. CRD number:** 000283942

- **iv. LEI, if any:** 549300HN4UKV1E2R3U73

- **v. State, if applicable:** NY

- **vi. Foreign country, if applicable:** US

- **vii. Gross commissions paid by the Fund for the reporting period:** $250,507.80

**Brokers Record: 4**

- **i. Full name of broker:** J.P. Morgan Securities LLC

- **ii. SEC file number:** 8-35008

- **iii. CRD number:** 000000079

- **iv. LEI, if any:** ZBUT11V806EZRVTWT807

- **v. State, if applicable:** NY

- **vi. Foreign country, if applicable:** US

- **vii. Gross commissions paid by the Fund for the reporting period:** $202,784.05

**Brokers Record: 5**

- **i. Full name of broker:** UBS Securities LLC

- **ii. SEC file number:** 8-22651

- **iii. CRD number:** 000007654

- **iv. LEI, if any:** T6FIZBDPKLYJKFCRVK44

- **v. State, if applicable:** NY

- **vi. Foreign country, if applicable:** US

- **vii. Gross commissions paid by the Fund for the reporting period:** $133,018.29

**Brokers Record: 6**

- **i. Full name of broker:** Evercore Group L.L.C.

- **ii. SEC file number:** 8-49830

- **iii. CRD number:** 000042405

- **iv. LEI, if any:** 5493008F0LRLS5N8LZ81

- **v. State, if applicable:** NY

- **vi. Foreign country, if applicable:** US

- **vii. Gross commissions paid by the Fund for the reporting period:** $96,857.85

**Brokers Record: 7**

- **i. Full name of broker:** Jefferies LLC

- **ii. SEC file number:** 8-15074

- **iii. CRD number:** 000002347

- **iv. LEI, if any:** 58PU97L1C0WSRCWADL48

- **v. State, if applicable:** NY

- **vi. Foreign country, if applicable:** US

- **vii. Gross commissions paid by the Fund for the reporting period:** $373,652.94

**Brokers Record: 8**

- **i. Full name of broker:** Barclays Capital Inc.

- **ii. SEC file number:** 8-41342

- **iii. CRD number:** 000019714

- **iv. LEI, if any:** AC28XWWI3WIBK2824319

- **v. State, if applicable:** NY

- **vi. Foreign country, if applicable:** US

- **vii. Gross commissions paid by the Fund for the reporting period:** $101,748.28

**Brokers Record: 9**

- **i. Full name of broker:** Goldman Sachs & Co. LLC

- **ii. SEC file number:** 8-129

- **iii. CRD number:** 000000361

- **iv. LEI, if any:** FOR8UP27PHTHYVLBNG30

- **v. State, if applicable:** NY

- **vi. Foreign country, if applicable:** US

- **vii. Gross commissions paid by the Fund for the reporting period:** $163,009.32

**Brokers Record: 10**

- **i. Full name of broker:** Liquidnet, Inc.

- **ii. SEC file number:** 8-52461

- **iii. CRD number:** 000103987

- **iv. LEI, if any:** 213800HSKBBO1GCVRG79

- **v. State, if applicable:** NY

- **vi. Foreign country, if applicable:** US

- **vii. Gross commissions paid by the Fund for the reporting period:** $261,999.64

**Aggregate Commission:** $2,360,627.86

**Item C.17.a. Principal transaction counterparties.**

| Name                                | SEC file number   | CRD number   | LEI                  | State   | Country   | Total Purchase/Sale ($)   |
|:---|:---|:---|:---|:---|:---|:---|
| Barclays Capital Inc.               | 8-41342           | 000019714    | AC28XWWI3WIBK2824319 | NY      | US        | $13,766,374.80            |
| Citigroup Global Markets Inc.       | 8-8177            | 000007059    | MBNUM2BPBDO7JBLYG310 | NY      | US        | $2,458,356.00             |
| Goldman Sachs & Co. LLC             | 8-129             | 000000361    | FOR8UP27PHTHYVLBNG30 | NY      | US        | $2,764,669.00             |
| Leerink Partners LLC                | 8-48535           | 000039011    | 549300AAH7U76CEUBI94 | MA      | US        | $4,018,000.00             |
| Piper Sandler & Co.                 | 8-15204           | 000000665    | 549300GRQCWQ3XGH0H10 | MN      | US        | $2,335,296.00             |
| J.P. Morgan Securities LLC          | 8-35008           | 000000079    | ZBUT11V806EZRVTWT807 | NY      | US        | $5,589,000.00             |
| State Street Bank and Trust Company | N/A               | N/A          | 571474TGEMMWANRLN572 | MA      | US        | $11,321,841,563.14        |
| BofA Securities, Inc.               | 8-69787           | 000283942    | 549300HN4UKV1E2R3U73 | NY      | US        | $10,824,282.00            |
| Morgan Stanley & Co. LLC            | 8-15869           | 000008209    | 9R7GPTSO7KV3UQJZQ078 | NY      | US        | $19,293,995.50            |
| Jefferies LLC                       | 8-15074           | 000002347    | 58PU97L1C0WSRCWADL48 | NY      | US        | $6,246,915.00             |

- **Item C.17.b - Aggregate value of principal purchase/sale transactions:** $11,389,138,451.44

- **Item C.18 - Did the Fund pay commissions for 'brokerage and research services'?:** Yes

- **Item C.19.a - Fund's monthly average net assets:** $2,215,850,031.81

**Item C.20. Lines of credit, interfund lending and interfund borrowing.**

- **a. Does the Fund have available a line of credit?** Yes

**If yes, for each line of credit, provide the information requested below:**

**Line of Credit details Record: 1**

- **i. Is the line of credit a committed or uncommitted line of credit?** Committed

- **ii. What size is the line of credit?** $1,675,000,000.00

- **iii. With which institution(s) is the line of credit?**

  - **Line Institutions Record: 1 Name of institution:** The Toronto-Dominion Bank, New York Branch

  - **Line Institutions Record: 2 Name of institution:** U.S. Bank National Association

  - **Line Institutions Record: 3 Name of institution:** Bank of America, N.A.

  - **Line Institutions Record: 4 Name of institution:** State Street Bank and Trust Company

  - **Line Institutions Record: 5 Name of institution:** The Bank of New York Mellon

  - **Line Institutions Record: 6 Name of institution:** Barclays Bank PLC, New York Branch

  - **Line Institutions Record: 7 Name of institution:** Morgan Stanley Bank, N.A.

  - **Line Institutions Record: 8 Name of institution:** Citibank, N.A.

  - **Line Institutions Record: 9 Name of institution:** Wells Fargo Bank, National Association

- **iv. Is the line of credit just for the Fund, or is it shared among multiple funds?** Shared

  - **1. If shared, list the names of other funds that may use the line of credit:**

| Name of fund                                                                           | SEC File number   |
|:---|:---|
| Short Duration Income Portfolio                                                        | 811-05876         |
| Dividend Growth Portfolio                                                              | 811-05876         |
| Lord Abbett U.S. Government & Government Sponsored Enterprises Money Market Fund, Inc. | 811-02924         |
| Lord Abbett Growth Leaders Fund                                                        | 811-07538         |
| Lord Abbett Short Duration Core Bond Fund                                              | 811-07988         |
| Lord Abbett International Growth Fund                                                  | 811-10371         |
| Lord Abbett Floating Rate Fund                                                         | 811-07988         |
| Lord Abbett Total Return Fund                                                          | 811-07988         |
| Lord Abbett Convertible Fund                                                           | 811-07988         |
| Lord Abbett Income Fund                                                                | 811-07988         |
| Lord Abbett Inflation Focused Fund                                                     | 811-07988         |
| Lord Abbett National Tax-Free Income Fund                                              | 811-03942         |
| Small-Cap Value Series                                                                 | 811-06650         |
| Lord Abbett Focused Growth Fund                                                        | 811-07538         |
| Lord Abbett Health Care Fund                                                           | 811-07538         |
| Lord Abbett International Value Fund                                                   | 811-07538         |
| Lord Abbett Emerging Markets Corporate Debt Fund                                       | 811-05476         |
| Fundamental Equity Portfolio                                                           | 811-05876         |
| LORD ABBETT BOND DEBENTURE FUND INC                                                    | 811-02145         |
| Lord Abbett Diversification Shares: Enhanced Municipal Yield Completion Fund           | 811-10371         |
| Lord Abbett High Yield Fund                                                            | 811-07988         |
| Lord Abbett Global Equity Fund                                                         | 811-07538         |
| Developing Growth Portfolio                                                            | 811-05876         |
| Bond-Debenture Portfolio                                                               | 811-05876         |
| Lord Abbett California Tax-Free Income Fund                                            | 811-03942         |
| Mid Cap Stock Portfolio                                                                | 811-05876         |
| Lord Abbett Short Duration Tax Free Fund                                               | 811-03942         |
| Lord Abbett Value Opportunities Fund                                                   | 811-07538         |
| Lord Abbett Short Duration Income Fund                                                 | 811-07988         |
| Lord Abbett Focused Small Cap Value Fund                                               | 811-07538         |
| Lord Abbett Dividend Growth Fund                                                       | 811-06650         |
| Lord Abbett International Opportunities Fund                                           | 811-07538         |
| Lord Abbett Micro-Cap Growth Fund                                                      | 811-07538         |
| LORD ABBETT MID CAP STOCK FUND INC                                                     | 811-03691         |
| Lord Abbett Short Duration High Income Municipal Bond Fund                             | 811-03942         |
| Lord Abbett Emerging Markets Bond Fund                                                 | 811-05476         |
| Lord Abbett Emerging Markets Equity Fund                                               | 811-10371         |
| Lord Abbett New Jersey Tax-Free Income Fund                                            | 811-03942         |
| Lord Abbett International Equity Fund                                                  | 811-07538         |
| Growth Opportunities Portfolio                                                         | 811-05876         |
| Growth and Income Portfolio                                                            | 811-05876         |
| Lord Abbett Focused Large Cap Value Fund                                               | 811-07538         |
| Lord Abbett Core Plus Bond Fund                                                        | 811-07988         |
| Lord Abbett Fundamental Equity Fund                                                    | 811-07538         |
| Lord Abbett Investment Grade Floating Rate Fund                                        | 811-10371         |
| Lord Abbett Ultra Short Bond Fund                                                      | 811-07988         |
| Lord Abbett Core Fixed Income Fund                                                     | 811-07988         |
| Lord Abbett New York Tax-Free Income Fund                                              | 811-03942         |
| Lord Abbett High Income Municipal Bond Fund                                            | 811-03942         |
| Lord Abbett Growth Opportunities Fund                                                  | 811-06650         |
| Total Return Portfolio                                                                 | 811-05876         |
| LORD ABBETT AFFILIATED FUND INC                                                        | 811-00005         |
| Lord Abbett Short Duration High Yield Fund                                             | 811-10371         |
| Lord Abbett Intermediate Tax Free Fund                                                 | 811-03942         |

- **v. Did the Fund draw on the line of credit this period?** No

**Line of Credit details Record: 2**

- **i. Is the line of credit a committed or uncommitted line of credit?** Uncommitted

- **ii. What size is the line of credit?** $330,000,000.00

- **iii. With which institution(s) is the line of credit?**

  - **Line Institutions Record: 1 Name of institution:** State Street Bank and Trust Company

- **iv. Is the line of credit just for the Fund, or is it shared among multiple funds?** Shared

  - **1. If shared, list the names of other funds that may use the line of credit:**

| Name of fund                                                                           | SEC File number   |
|:---|:---|
| Lord Abbett Emerging Markets Bond Fund                                                 | 811-05476         |
| Short Duration Income Portfolio                                                        | 811-05876         |
| Lord Abbett Inflation Focused Fund                                                     | 811-07988         |
| Lord Abbett New York Tax-Free Income Fund                                              | 811-03942         |
| Total Return Portfolio                                                                 | 811-05876         |
| Lord Abbett Investment Grade Floating Rate Fund                                        | 811-10371         |
| Lord Abbett Core Fixed Income Fund                                                     | 811-07988         |
| Lord Abbett Short Duration High Income Municipal Bond Fund                             | 811-03942         |
| Lord Abbett Focused Growth Fund                                                        | 811-07538         |
| Lord Abbett Dividend Growth Fund                                                       | 811-06650         |
| Lord Abbett Short Duration Tax Free Fund                                               | 811-03942         |
| Lord Abbett International Opportunities Fund                                           | 811-07538         |
| LORD ABBETT AFFILIATED FUND INC                                                        | 811-00005         |
| Lord Abbett Emerging Markets Corporate Debt Fund                                       | 811-05476         |
| Bond-Debenture Portfolio                                                               | 811-05876         |
| Lord Abbett New Jersey Tax-Free Income Fund                                            | 811-03942         |
| Lord Abbett International Equity Fund                                                  | 811-07538         |
| Lord Abbett Focused Large Cap Value Fund                                               | 811-07538         |
| Lord Abbett Short Duration Core Bond Fund                                              | 811-07988         |
| Lord Abbett Global Equity Fund                                                         | 811-07538         |
| LORD ABBETT MID CAP STOCK FUND INC                                                     | 811-03691         |
| Lord Abbett Growth Opportunities Fund                                                  | 811-06650         |
| Lord Abbett Fundamental Equity Fund                                                    | 811-07538         |
| Fundamental Equity Portfolio                                                           | 811-05876         |
| Lord Abbett Growth Leaders Fund                                                        | 811-07538         |
| Developing Growth Portfolio                                                            | 811-05876         |
| Growth and Income Portfolio                                                            | 811-05876         |
| LORD ABBETT BOND DEBENTURE FUND INC                                                    | 811-02145         |
| Lord Abbett Total Return Fund                                                          | 811-07988         |
| Lord Abbett Intermediate Tax Free Fund                                                 | 811-03942         |
| Lord Abbett Micro-Cap Growth Fund                                                      | 811-07538         |
| Lord Abbett High Yield Fund                                                            | 811-07988         |
| Lord Abbett Short Duration High Yield Fund                                             | 811-10371         |
| Lord Abbett Ultra Short Bond Fund                                                      | 811-07988         |
| Lord Abbett Health Care Fund                                                           | 811-07538         |
| Lord Abbett International Value Fund                                                   | 811-07538         |
| Lord Abbett Focused Small Cap Value Fund                                               | 811-07538         |
| Lord Abbett National Tax-Free Income Fund                                              | 811-03942         |
| Lord Abbett U.S. Government & Government Sponsored Enterprises Money Market Fund, Inc. | 811-02924         |
| Lord Abbett High Income Municipal Bond Fund                                            | 811-03942         |
| Small-Cap Value Series                                                                 | 811-06650         |
| Lord Abbett Income Fund                                                                | 811-07988         |
| Lord Abbett Floating Rate Fund                                                         | 811-07988         |
| Lord Abbett Core Plus Bond Fund                                                        | 811-07988         |
| Lord Abbett Short Duration Income Fund                                                 | 811-07988         |
| Lord Abbett International Growth Fund                                                  | 811-10371         |
| Lord Abbett Convertible Fund                                                           | 811-07988         |
| Dividend Growth Portfolio                                                              | 811-05876         |
| Lord Abbett California Tax-Free Income Fund                                            | 811-03942         |
| Mid Cap Stock Portfolio                                                                | 811-05876         |
| Growth Opportunities Portfolio                                                         | 811-05876         |
| Lord Abbett Diversification Shares: Enhanced Municipal Yield Completion Fund           | 811-10371         |
| Lord Abbett Value Opportunities Fund                                                   | 811-07538         |
| Lord Abbett Emerging Markets Equity Fund                                               | 811-10371         |

- **v. Did the Fund draw on the line of credit this period?** No

- **b. Did the Fund engage in interfund lending?** No

- **c. Did the Fund engage in interfund borrowing?** No

**Item C.21. Swing pricing.**

- **a. Did the Fund (if not a Money Market Fund, Exchange-Traded Fund, or Exchange-Traded Managed Fund) engage in swing pricing?** No

## N-CEN: Part G: Attachments

**Item G.1a. Attachments.**

Attachments applicable to all Registrants. All Registrants shall file the following attachments, as applicable, with the current report. Indicate the attachments filed with the current report by checking the applicable items below:

- [ ] i. Legal proceedings

- [ ] ii. Provision of financial support

- [x] iii. Independent public accountant's report on internal control (management investment companies other than small business investment companies only)

- [ ] iv. Change in accounting principles and practices

- [ ] v. Information required to be filed pursuant to exemptive orders

- [ ] vi. Other information required to be included as an attachment pursuant to Commission rules and regulations

## N-CEN: Signature

Pursuant to the requirements of the Investment Company Act of 1940, the Registrant has duly caused this report to a be signed on its behalf by the undersigned hereunto duly authorized.

**Registrant:** LORD ABBETT DEVELOPING GROWTH FUND, INC.

**Date:** 2025-10-09

**Signature:** Michael Hebert

**Title:** Chief Financial Officer