# EDGAR Filing Document

**Accession Number:** 0000276914
**File Stem:** 0001410368-26-033945
**Filing Date:** 2026-3
**Character Count:** 35142
**Document Hash:** abbdafacc57188087fbd40a5ec1013cc
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-033945.hdr.sgml**: 20260330

**ACCESSION NUMBER**: 0001410368-26-033945

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260131

**FILED AS OF DATE**: 20260330

**DATE AS OF CHANGE**: 20260330

**PERIOD START**: 20260731

**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:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-02871
- **FILM NUMBER:** 26812691

**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           |

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** LORD ABBETT DEVELOPING GROWTH FUND, INC.

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

- **c. CIK number of Registrant:** 0000276914

- **d. LEI of Registrant:** 549300HWJ2W28SDTJF85

- **e. Address and telephone number of Registrant.**

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

  - **City:** JERSEY CITY

  - **State:** NJ

  - **Foreign country:** US

  - **Zip / Postal Code:** 07302

  - **Telephone number:** 201-827-2000

**Item A.2. Information about the Series.**

- **a. Name of Series:** LORD ABBETT DEVELOPING GROWTH FUND INC

- **b. EDGAR series identifier (if any):** S000006834

- **c. LEI of Series:** 549300HWJ2W28SDTJF85

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2026-07-31

- **b. Date as of which information is reported:** 2026-01-31

**Item A.4. Final filing**

Does the Fund anticipate that this will be its final filing on Form N-PORT? **No**

### Fund Information

**Total Assets:** $2113543960.43

**Total Liabilities:** $82467417.75

**Net Assets:** $2031076542.68

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000018473 | 0.08%                | -2.92%               | 3.82%                |
| Class ID C000018475 | 0.09%                | -2.99%               | 3.70%                |
| Class ID C000018476 | 0.08%                | -2.96%               | 3.81%                |
| Class ID C000018477 | 0.11%                | -2.92%               | 3.86%                |
| Class ID C000054855 | 0.10%                | -2.93%               | 3.84%                |
| Class ID C000054856 | 0.04%                | -2.96%               | 3.80%                |
| Class ID C000054857 | 0.04%                | -2.92%               | 3.77%                |
| Class ID C000151972 | 0.11%                | -2.95%               | 3.83%                |
| Class ID C000151973 | 0.09%                | -2.89%               | 3.83%                |
| Class ID C000151974 | 0.08%                | -2.88%               | 3.83%                |
| Class ID C000188220 | 0.11%                | -2.90%               | 3.83%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $4910217.01              | $-3051794.87                               |
| Month 2  | $52264141.00             | $-110761839.24                             |
| Month 3  | $78760004.31             | $-870590.68                                |

### Schedule of Portfolio Investments

| Name                                    | Title                                                  | Identifiers                                   | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   |   Fair Value Level | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Abivax SA                               | Abivax SA                                              | CUSIP: 00370M103<br>LEI: 969500D8TMNB184OJU95 | Long             | EC               | CORP              | FR        |    183074 | NS      | $20348675.10  | 1.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Adaptive Biotechnologies Corp           | Adaptive Biotechnologies Corp                          | CUSIP: 00650F109<br>LEI: 549300ZTF7OT1FW66Q96 | Long             | EC               | CORP              | US        |   1697752 | NS      | $31408412.00  | 1.55%             |  |  |  | No            |                  1 | On Loan: No      |
| AeroVironment Inc                       | AeroVironment Inc                                      | CUSIP: 008073108<br>LEI: 529900PGHVI29YLZ6221 | Long             | EC               | CORP              | US        |     63556 | NS      | $17693354.84  | 0.87%             |  |  |  | No            |                  1 | On Loan: No      |
| Agilysys Inc                            | Agilysys Inc                                           | CUSIP: 00847J105<br>LEI: 5299001XWB5V3B5IPN93 | Long             | EC               | CORP              | US        |     80151 | NS      | $6953099.25   | 0.34%             |  |  |  | No            |                  1 | On Loan: No      |
| Amkor Technology Inc                    | Amkor Technology Inc                                   | CUSIP: 031652100<br>LEI: 529900VHLRTKPWZJBM84 | Long             | EC               | CORP              | US        |    196310 | NS      | $9487662.30   | 0.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Applied Digital Corp                    | Applied Digital Corp                                   | CUSIP: 038169207<br>LEI: 2549004NE2B6RYXINZ02 | Long             | EC               | CORP              | US        |    459253 | NS      | $15559491.64  | 0.77%             |  |  |  | No            |                  1 | On Loan: —       |
| Arcellx Inc                             | Arcellx Inc                                            | CUSIP: 03940C100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    242517 | NS      | $16566336.27  | 0.82%             |  |  |  | No            |                  1 | On Loan: No      |
| Argan Inc                               | Argan Inc                                              | CUSIP: 04010E109<br>LEI: 529900E4KZWBV9KGBS83 | Long             | EC               | CORP              | US        |     32799 | NS      | $11384860.89  | 0.56%             |  |  |  | No            |                  1 | On Loan: No      |
| Ascendis Pharma A/S                     | Ascendis Pharma A/S                                    | CUSIP: 04351P101<br>LEI: 549300B66JN3W3J8GH73 | Long             | EC               | CORP              | DK        |     84934 | NS      | $19203577.40  | 0.95%             |  |  |  | No            |                  1 | On Loan: No      |
| Astera Labs Inc                         | Astera Labs Inc                                        | CUSIP: 04626A103<br>LEI: 529900LJL8TUEGF7HG20 | Long             | EC               | CORP              | US        |    125138 | NS      | $18848285.56  | 0.93%             |  |  |  | No            |                  1 | On Loan: No      |
| Bel Fuse Inc                            | Bel Fuse Inc                                           | CUSIP: 077347300<br>LEI: 2549009L4XYDBRRY6X39 | Long             | EC               | CORP              | US        |     53756 | NS      | $10815169.64  | 0.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Bloom Energy Corp                       | Bloom Energy Corp                                      | CUSIP: 093712107<br>LEI: 549300XB5J9BFW5JXV97 | Long             | EC               | CORP              | US        |    186434 | NS      | $28220514.58  | 1.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Boot Barn Holdings Inc                  | Boot Barn Holdings Inc                                 | CUSIP: 099406100<br>LEI: 529900QE1BFMYA3N4E71 | Long             | EC               | CORP              | US        |     84436 | NS      | $15070137.28  | 0.74%             |  |  |  | No            |                  1 | On Loan: No      |
| Bridgebio Pharma Inc                    | Bridgebio Pharma Inc                                   | CUSIP: 10806X102<br>LEI: 54930028YG89VTY2J114 | Long             | EC               | CORP              | US        |    554755 | NS      | $42865918.85  | 2.11%             |  |  |  | No            |                  1 | On Loan: No      |
| CECO Environmental Corp                 | CECO Environmental Corp                                | CUSIP: 125141101<br>LEI: 5493002CZCTL4HGLIY91 | Long             | EC               | CORP              | US        |    157848 | NS      | $10643690.64  | 0.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Calix Inc                               | Calix Inc                                              | CUSIP: 13100M509<br>LEI: 5299002RQRZ4SXSCSJ58 | Long             | EC               | CORP              | US        |    467821 | NS      | $20897564.07  | 1.03%             |  |  |  | No            |                  1 | On Loan: No      |
| Carpenter Technology Corp               | Carpenter Technology Corp                              | CUSIP: 144285103<br>LEI: DX6I6ZD3X5WNNCDJKP85 | Long             | EC               | CORP              | US        |    132115 | NS      | $41990110.45  | 2.07%             |  |  |  | No            |                  1 | On Loan: No      |
| Celcuity Inc                            | Celcuity Inc                                           | CUSIP: 15102K100<br>LEI: 25490070W7UU7W2SEY87 | Long             | EC               | CORP              | US        |    145799 | NS      | $15953326.58  | 0.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Celsius Holdings Inc                    | Celsius Holdings Inc                                   | CUSIP: 15118V207<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    355606 | NS      | $18662202.88  | 0.92%             |  |  |  | No            |                  1 | On Loan: No      |
| CG oncology Inc                         | CG oncology Inc                                        | CUSIP: 156944100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    289171 | NS      | $15051350.55  | 0.74%             |  |  |  | No            |                  1 | On Loan: No      |
| Cogent Biosciences Inc                  | Cogent Biosciences Inc                                 | CUSIP: 19240Q201<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    663487 | NS      | $23825818.17  | 1.17%             |  |  |  | No            |                  1 | On Loan: No      |
| Comfort Systems USA Inc                 | Comfort Systems USA Inc                                | CUSIP: 199908104<br>LEI: 5299009DT1ZA5HTU6R38 | Long             | EC               | CORP              | US        |     54458 | NS      | $62196481.80  | 3.06%             |  |  |  | No            |                  1 | On Loan: No      |
| Construction Partners Inc               | Construction Partners Inc                              | CUSIP: 21044C107<br>LEI: 549300MHLFL4E8JLZU44 | Long             | EC               | CORP              | US        |    314421 | NS      | $34548579.48  | 1.70%             |  |  |  | No            |                  1 | On Loan: No      |
| Crane Co                                | Crane Co                                               | CUSIP: 224408104<br>LEI: 5493000CQRQOTHUODL75 | Long             | EC               | CORP              | US        |    135438 | NS      | $24736396.32  | 1.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Dutch Bros Inc                          | Dutch Bros Inc                                         | CUSIP: 26701L100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    176097 | NS      | $9577915.83   | 0.47%             |  |  |  | No            |                  1 | On Loan: No      |
| D-Wave Quantum Inc                      | D-Wave Quantum Inc                                     | CUSIP: 26740W109<br>LEI: 5493001U37G4PRD4GW95 | Long             | EC               | CORP              | US        |    807127 | NS      | $17127234.94  | 0.84%             |  |  |  | No            |                  1 | On Loan: —       |
| Evercore Inc                            | Evercore Inc                                           | CUSIP: 29977A105<br>LEI: 529900P6KLPT95DW3W58 | Long             | EC               | CORP              | US        |     69906 | NS      | $24695692.62  | 1.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Fidelity Investments                    | Fidelity Investments Money Market Government Portfolio | CUSIP: 31607A703<br>LEI: E57ODZWZ7FF32TWEFA76 | Long             | STIV             | RF                | US        |  72055029 | NS      | $72055028.66  | 3.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Figure Technology Solutions Inc         | Figure Technology Solutions Inc                        | CUSIP: 349381103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    404670 | NS      | $23017629.60  | 1.13%             |  |  |  | No            |                  1 | On Loan: —       |
| Guardant Health Inc                     | Guardant Health Inc                                    | CUSIP: 40131M109<br>LEI: 254900M8C3E5VC8BR186 | Long             | EC               | CORP              | US        |    655744 | NS      | $74781045.76  | 3.68%             |  |  |  | No            |                  1 | On Loan: No      |
| HeartFlow Inc                           | HeartFlow Inc                                          | CUSIP: 42238D107<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    404576 | NS      | $12084685.12  | 0.59%             |  |  |  | No            |                  1 | On Loan: —       |
| Hinge Health Inc                        | Hinge Health Inc                                       | CUSIP: 433313103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    429764 | NS      | $14998763.60  | 0.74%             |  |  |  | No            |                  1 | On Loan: No      |
| Hut 8 Corp                              | Hut 8 Corp                                             | CUSIP: 44812J104<br>LEI: 98450066FEF9C1D3FC20 | Long             | EC               | CORP              | US        |    175403 | NS      | $9792749.49   | 0.48%             |  |  |  | No            |                  1 | On Loan: No      |
| IES Holdings Inc                        | IES Holdings Inc                                       | CUSIP: 44951W106<br>LEI: 549300687T8E6LN6EN72 | Long             | EC               | CORP              | US        |     62154 | NS      | $23636544.66  | 1.16%             |  |  |  | No            |                  1 | On Loan: No      |
| IRhythm Holdings Inc                    | IRhythm Holdings Inc                                   | CUSIP: 450056106<br>LEI: 549300FJI72RJGDQS384 | Long             | EC               | CORP              | US        |    195651 | NS      | $30230036.01  | 1.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Insmed Inc                              | Insmed Inc                                             | CUSIP: 457669307<br>LEI: 529900Q55QAG41CCAC11 | Long             | EC               | CORP              | US        |     66149 | NS      | $10376793.63  | 0.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Karman Holdings Inc                     | Karman Holdings Inc                                    | CUSIP: 485924104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    443732 | NS      | $46059381.60  | 2.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Kratos Defense & Security Solutions Inc | Kratos Defense & Security Solutions Inc                | CUSIP: 50077B207<br>LEI: 5493000EKBN0UY1F3F88 | Long             | EC               | CORP              | US        |    330915 | NS      | $34087554.15  | 1.68%             |  |  |  | No            |                  1 | On Loan: No      |
| Lattice Semiconductor Corp              | Lattice Semiconductor Corp                             | CUSIP: 518415104<br>LEI: 549300LRBBPZDQ2II567 | Long             | EC               | CORP              | US        |    192060 | NS      | $15464671.20  | 0.76%             |  |  |  | No            |                  1 | On Loan: No      |
| Life Time Group Holdings Inc            | Life Time Group Holdings Inc                           | CUSIP: 53190C102<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    385225 | NS      | $11237013.25  | 0.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Loar Holdings Inc                       | Loar Holdings Inc                                      | CUSIP: 53947R105<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    144729 | NS      | $9925514.82   | 0.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Lyft Inc                                | Lyft Inc                                               | CUSIP: 55087P104<br>LEI: 549300H7I5VN334XVZ52 | Long             | EC               | CORP              | US        |   1018540 | NS      | $17182769.80  | 0.85%             |  |  |  | No            |                  1 | On Loan: No      |
| MKS Inc                                 | MKS Inc                                                | CUSIP: 55306N104<br>LEI: 549300KEQATBHAGVF505 | Long             | EC               | CORP              | US        |     84419 | NS      | $19873076.79  | 0.98%             |  |  |  | No            |                  1 | On Loan: No      |
| MP Materials Corp                       | MP Materials Corp                                      | CUSIP: 553368101<br>LEI: 89450063PHPS61USMT84 | Long             | EC               | CORP              | US        |    165432 | NS      | $9722438.64   | 0.48%             |  |  |  | No            |                  1 | On Loan: —       |
| MACOM Technology Solutions Holdings Inc | MACOM Technology Solutions Holdings Inc                | CUSIP: 55405Y100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    162463 | NS      | $35589144.78  | 1.75%             |  |  |  | No            |                  1 | On Loan: No      |
| Madrigal Pharmaceuticals Inc            | Madrigal Pharmaceuticals Inc                           | CUSIP: 558868105<br>LEI: 549300CHIMT2EUSNJB60 | Long             | EC               | CORP              | US        |     82089 | NS      | $40166968.59  | 1.98%             |  |  |  | No            |                  1 | On Loan: No      |
| MasTec Inc                              | MasTec Inc                                             | CUSIP: 576323109<br>LEI: 549300TMDIT8WREDOF45 | Long             | EC               | CORP              | US        |    139522 | NS      | $33552250.56  | 1.65%             |  |  |  | No            |                  1 | On Loan: No      |
| Mercury Systems Inc                     | Mercury Systems Inc                                    | CUSIP: 589378108<br>LEI: 549300P3B84SGK7HH679 | Long             | EC               | CORP              | US        |    325284 | NS      | $30537661.92  | 1.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Miami International Holdings Inc        | Miami International Holdings Inc                       | CUSIP: 59356Q108<br>LEI: 254900TREUDBWGLAP788 | Long             | EC               | CORP              | US        |    350296 | NS      | $14617852.08  | 0.72%             |  |  |  | No            |                  1 | On Loan: —       |
| Mirion Technologies Inc                 | Mirion Technologies Inc                                | CUSIP: 60471A101<br>LEI: 549300BNTOWVWFNVTJ65 | Long             | EC               | CORP              | US        |   1259667 | NS      | $31290128.28  | 1.54%             |  |  |  | No            |                  1 | On Loan: No      |
| Mirum Pharmaceuticals Inc               | Mirum Pharmaceuticals Inc                              | CUSIP: 604749101<br>LEI: 254900YZKR40F7F27K81 | Long             | EC               | CORP              | US        |    263316 | NS      | $27179477.52  | 1.34%             |  |  |  | No            |                  1 | On Loan: No      |
| Modine Manufacturing Co                 | Modine Manufacturing Co                                | CUSIP: 607828100<br>LEI: Z35SZFYJR8GZZRSIUU09 | Long             | EC               | CORP              | US        |    213916 | NS      | $39501728.56  | 1.94%             |  |  |  | No            |                  1 | On Loan: No      |
| Natera Inc                              | Natera Inc                                             | CUSIP: 632307104<br>LEI: 529900CQ3OZ0A0VYVU59 | Long             | EC               | CORP              | US        |    109940 | NS      | $25411531.60  | 1.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Nextpower Inc                           | Nextpower Inc                                          | CUSIP: 65290E101<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    332877 | NS      | $38976567.93  | 1.92%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuvalent Inc                            | Nuvalent Inc                                           | CUSIP: 670703107<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    142107 | NS      | $14621389.23  | 0.72%             |  |  |  | No            |                  1 | On Loan: No      |
| PTC Therapeutics Inc                    | PTC Therapeutics Inc                                   | CUSIP: 69366J200<br>LEI: 549300UJLWOIWFDGB318 | Long             | EC               | CORP              | US        |    330938 | NS      | $24995747.14  | 1.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Piper Sandler Cos                       | Piper Sandler Cos                                      | CUSIP: 724078100<br>LEI: QUQDBTUSOAKFEVMRMF78 | Long             | EC               | CORP              | US        |     60199 | NS      | $20849923.65  | 1.03%             |  |  |  | No            |                  1 | On Loan: No      |
| Planet Fitness Inc                      | Planet Fitness Inc                                     | CUSIP: 72703H101<br>LEI: 549300LLE5HUPF6H8G33 | Long             | EC               | CORP              | US        |    277890 | NS      | $25299105.60  | 1.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Rambus Inc                              | Rambus Inc                                             | CUSIP: 750917106<br>LEI: 2549000211GDCQSLV833 | Long             | EC               | CORP              | US        |    342828 | NS      | $39024111.24  | 1.92%             |  |  |  | No            |                  1 | On Loan: No      |
| RBC Bearings Inc                        | RBC Bearings Inc                                       | CUSIP: 75524B104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     60622 | NS      | $30290994.74  | 1.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Reddit Inc                              | Reddit Inc                                             | CUSIP: 75734B100<br>LEI: 529900APN1YHPBHPI679 | Long             | EC               | CORP              | US        |    165563 | NS      | $29846042.01  | 1.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Revolution Medicines Inc                | Revolution Medicines Inc                               | CUSIP: 76155X100<br>LEI: 549300JU3X0LBCQ65892 | Long             | EC               | CORP              | US        |     94855 | NS      | $9196192.25   | 0.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Rhythm Pharmaceuticals Inc              | Rhythm Pharmaceuticals Inc                             | CUSIP: 76243J105<br>LEI: 529900JPNWXQ8DPLA551 | Long             | EC               | CORP              | US        |    201474 | NS      | $20655114.48  | 1.02%             |  |  |  | No            |                  1 | On Loan: No      |
| Rocket Lab Corp                         | Rocket Lab Corp                                        | CUSIP: 773121108<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    180888 | NS      | $14483702.16  | 0.71%             |  |  |  | No            |                  1 | On Loan: No      |
| Rubrik Inc                              | Rubrik Inc                                             | CUSIP: 781154109<br>LEI: 254900TRGK2WTBYMYU27 | Long             | EC               | CORP              | US        |    142130 | NS      | $7952173.50   | 0.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Sanmina Corp                            | Sanmina Corp                                           | CUSIP: 801056102<br>LEI: X5K24XLM8QYRXF00EB42 | Long             | EC               | CORP              | US        |     97628 | NS      | $13831935.04  | 0.68%             |  |  |  | No            |                  1 | On Loan: No      |
| GeneDx Holdings Corp                    | GeneDx Holdings Corp                                   | CUSIP: 81663L200<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    280558 | NS      | $27006513.08  | 1.33%             |  |  |  | No            |                  1 | On Loan: No      |
| Semtech Corp                            | Semtech Corp                                           | CUSIP: 816850101<br>LEI: 549300J7WUY317SW6O61 | Long             | EC               | CORP              | US        |    264845 | NS      | $21121388.75  | 1.04%             |  |  |  | No            |                  1 | On Loan: No      |
| ServiceTitan Inc                        | ServiceTitan Inc                                       | CUSIP: 81764X103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    168213 | NS      | $13177806.42  | 0.65%             |  |  |  | No            |                  1 | On Loan: —       |
| SiTime Corp                             | SiTime Corp                                            | CUSIP: 82982T106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     99838 | NS      | $36252176.18  | 1.78%             |  |  |  | No            |                  1 | On Loan: No      |
| Fixed Income Clearing Corp              | FIXED INC CLEARING CORP.REPO                           | CUSIP: 000000000<br>LEI: 549300H47WTHXPU08X20 | Long             | RA               | CORP              | US        |  56803001 | PA      | $56803000.67  | 2.80%             |  |  |  | No            |                  2 | On Loan: No      |
| Sterling Infrastructure Inc             | Sterling Infrastructure Inc                            | CUSIP: 859241101<br>LEI: 549300RZIK6K1215XU51 | Long             | EC               | CORP              | US        |     83887 | NS      | $30023996.17  | 1.48%             |  |  |  | No            |                  1 | On Loan: No      |
| Tarsus Pharmaceuticals Inc              | Tarsus Pharmaceuticals Inc                             | CUSIP: 87650L103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    420038 | NS      | $27109252.52  | 1.33%             |  |  |  | No            |                  1 | On Loan: No      |
| Terns Pharmaceuticals Inc               | Terns Pharmaceuticals Inc                              | CUSIP: 880881107<br>LEI: 254900S1ZDQMF4MYP709 | Long             | EC               | CORP              | US        |    756230 | NS      | $26165558.00  | 1.29%             |  |  |  | No            |                  1 | On Loan: No      |
| TransMedics Group Inc                   | TransMedics Group Inc                                  | CUSIP: 89377M109<br>LEI: 549300060GVOSMWARH50 | Long             | EC               | CORP              | US        |    115709 | NS      | $15502113.28  | 0.76%             |  |  |  | No            |                  1 | On Loan: No      |
| Unity Software Inc                      | Unity Software Inc                                     | CUSIP: 91332U101<br>LEI: 549300D1ESJMGNQNG432 | Long             | EC               | CORP              | US        |    737123 | NS      | $21450279.30  | 1.06%             |  |  |  | No            |                  1 | On Loan: No      |
| Universal Technical Institute Inc       | Universal Technical Institute Inc                      | CUSIP: 913915104<br>LEI: 2549003YOJGAZ0PVFV48 | Long             | EC               | CORP              | US        |    364063 | NS      | $10131873.29  | 0.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Willdan Group Inc                       | Willdan Group Inc                                      | CUSIP: 96924N100<br>LEI: 529900YQO0LF5VAEKN05 | Long             | EC               | CORP              | US        |     81815 | NS      | $10325053.00  | 0.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Woodward Inc                            | Woodward Inc                                           | CUSIP: 980745103<br>LEI: YPYKXXTR8TFDH54ZMB45 | Long             | EC               | CORP              | US        |     76333 | NS      | $24261680.72  | 1.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Xometry Inc                             | Xometry Inc                                            | CUSIP: 98423F109<br>LEI: 5493006JFRGU7YRRXE44 | Long             | EC               | CORP              | US        |    414107 | NS      | $23657932.91  | 1.16%             |  |  |  | No            |                  1 | On Loan: No      |
| York Space Systems Inc                  | York Space Systems Inc                                 | CUSIP: 987084100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     89886 | NS      | $3051629.70   | 0.15%             |  |  |  | No            |                  1 | On Loan: No      |
| Credo Technology Group Holding Ltd      | Credo Technology Group Holding Ltd                     | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | KY        |    371644 | NS      | $46559560.32  | 2.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Fabrinet                                | Fabrinet                                               | CUSIP: 000000000<br>LEI: 5493004TETZ6IYF7CV44 | Long             | EC               | CORP              | KY        |     72429 | NS      | $35449649.76  | 1.75%             |  |  |  | No            |                  1 | On Loan: No      |
| FTAI Aviation Ltd                       | FTAI Aviation Ltd                                      | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | KY        |     73746 | NS      | $20082510.72  | 0.99%             |  |  |  | No            |                  1 | On Loan: No      |
| JFrog Ltd                               | JFrog Ltd                                              | CUSIP: 000000000<br>LEI: 2549002N8E00AY49G567 | Long             | EC               | CORP              | IL        |    450076 | NS      | $24664164.80  | 1.21%             |  |  |  | No            |                  1 | On Loan: No      |
| Nova Ltd                                | Nova Ltd                                               | CUSIP: 000000000<br>LEI: 529900B2DSWE5V3SC292 | Long             | EC               | CORP              | IL        |    100273 | NS      | $45908990.32  | 2.26%             |  |  |  | No            |                  1 | On Loan: No      |
| Citibank NA                             | CITIBANK NA DDCA                                       | CUSIP: 000000000<br>LEI: E57ODZWZ7FF32TWEFA76 | Long             | STIV             | RF                | US        |   8006114 | NS      | $8006114.29   | 0.39%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2026-02-13

**Name of Applicant:** LORD ABBETT DEVELOPING GROWTH FUND, INC.

**Signature:** Michael Hebert

**Name of Signer:** Michael Hebert

**Title:** Chief Financial Officer