# EDGAR Filing Document

**Accession Number:** 0000276914
**File Stem:** 0001410368-25-012520
**Filing Date:** 2025-9
**Character Count:** 35143
**Document Hash:** 573b838d1a5d4c60cda554f9370b1efd
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-25-012520.hdr.sgml**: 20250929

**ACCESSION NUMBER**: 0001410368-25-012520

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250731

**FILED AS OF DATE**: 20250929

**DATE AS OF CHANGE**: 20250929

**PERIOD START**: 20250731

**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:** 251352268

**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:** 2025-07-31

- **b. Date as of which information is reported:** 2025-07-31

**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:** $1992687907.51

**Total Liabilities:** $31421792.94

**Net Assets:** $1961266114.57

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000188220 | 6.54%                | 8.70%                | 2.25%                |
| Class ID C000018475 | 6.45%                | 8.59%                | 2.23%                |
| Class ID C000151974 | 6.54%                | 8.70%                | 2.25%                |
| Class ID C000151972 | 6.53%                | 8.68%                | 2.21%                |
| Class ID C000054856 | 6.49%                | 8.65%                | 2.19%                |
| Class ID C000151973 | 6.52%                | 8.68%                | 2.25%                |
| Class ID C000018473 | 6.52%                | 8.62%                | 2.21%                |
| Class ID C000018476 | 6.51%                | 8.66%                | 2.20%                |
| Class ID C000018477 | 6.52%                | 8.72%                | 2.22%                |
| Class ID C000054857 | 6.50%                | 8.65%                | 2.20%                |
| Class ID C000054855 | 6.54%                | 8.66%                | 2.20%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $33109198.63             | $81751396.38                               |
| Month 2  | $35429763.91             | $122934293.74                              |
| Month 3  | $39309428.32             | $4191547.89                                |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Carpenter Technology Corp               | Carpenter Technology Corp                              | CUSIP: 144285103<br>LEI: DX6I6ZD3X5WNNCDJKP85 | Long             | EC               | CORP              | US        |    155771 | NS      | $38847729.69  | 1.98%             |  |  |  | No            |                  1 | On Loan: No      |
| Astera Labs Inc                         | Astera Labs Inc                                        | CUSIP: 04626A103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    367980 | NS      | $50313905.40  | 2.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Nova Ltd                                | Nova Ltd                                               | CUSIP: 000000000<br>LEI: 529900B2DSWE5V3SC292 | Long             | EC               | CORP              | IL        |    105517 | NS      | $27707709.03  | 1.41%             |  |  |  | No            |                  1 | On Loan: No      |
| Piper Sandler Cos                       | Piper Sandler Cos                                      | CUSIP: 724078100<br>LEI: QUQDBTUSOAKFEVMRMF78 | Long             | EC               | CORP              | US        |     50423 | NS      | $15899380.36  | 0.81%             |  |  |  | No            |                  1 | On Loan: No      |
| Rhythm Pharmaceuticals Inc              | Rhythm Pharmaceuticals Inc                             | CUSIP: 76243J105<br>LEI: 529900JPNWXQ8DPLA551 | Long             | EC               | CORP              | US        |    212008 | NS      | $18069441.84  | 0.92%             |  |  |  | No            |                  1 | On Loan: No      |
| Waystar Holding Corp                    | Waystar Holding Corp                                   | CUSIP: 946784105<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    638271 | NS      | $23603261.58  | 1.20%             |  |  |  | No            |                  1 | On Loan: No      |
| Mirion Technologies Inc                 | Mirion Technologies Inc                                | CUSIP: 60471A101<br>LEI: 549300BNTOWVWFNVTJ65 | Long             | EC               | CORP              | US        |   1553408 | NS      | $34718668.80  | 1.77%             |  |  |  | No            |                  1 | On Loan: No      |
| Evercore Inc                            | Evercore Inc                                           | CUSIP: 29977A105<br>LEI: 529900P6KLPT95DW3W58 | Long             | EC               | CORP              | US        |     77064 | NS      | $23207052.96  | 1.18%             |  |  |  | No            |                  1 | On Loan: No      |
| RBC Bearings Inc                        | RBC Bearings Inc                                       | CUSIP: 75524B104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     63791 | NS      | $24708805.94  | 1.26%             |  |  |  | No            |                  1 | On Loan: No      |
| Merus NV                                | Merus NV                                               | CUSIP: 000000000<br>LEI: 549300W8GPUWU8QNU293 | Long             | EC               | CORP              | NL        |    164062 | NS      | $10867466.88  | 0.55%             |  |  |  | No            |                  1 | On Loan: No      |
| IES Holdings Inc                        | IES Holdings Inc                                       | CUSIP: 44951W106<br>LEI: 549300687T8E6LN6EN72 | Long             | EC               | CORP              | US        |     83642 | NS      | $29531480.94  | 1.51%             |  |  |  | No            |                  1 | On Loan: No      |
| MACOM Technology Solutions Holdings Inc | MACOM Technology Solutions Holdings Inc                | CUSIP: 55405Y100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    200660 | NS      | $27518512.40  | 1.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Sprouts Farmers Market Inc              | Sprouts Farmers Market Inc                             | CUSIP: 85208M102<br>LEI: 529900P8F4G77Q52XE24 | Long             | EC               | CORP              | US        |    142970 | NS      | $21665673.80  | 1.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Cava Group Inc                          | Cava Group Inc                                         | CUSIP: 148929102<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    120908 | NS      | $10641113.08  | 0.54%             |  |  |  | No            |                  1 | On Loan: No      |
| ExlService Holdings Inc                 | ExlService Holdings Inc                                | CUSIP: 302081104<br>LEI: 81E3DTNF6OSH489ZOV15 | Long             | EC               | CORP              | US        |    226934 | NS      | $9855743.62   | 0.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Planet Fitness Inc                      | Planet Fitness Inc                                     | CUSIP: 72703H101<br>LEI: 549300LLE5HUPF6H8G33 | Long             | EC               | CORP              | US        |    275027 | NS      | $30030198.13  | 1.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Ollie's Bargain Outlet Holdings Inc     | Ollie's Bargain Outlet Holdings Inc                    | CUSIP: 681116109<br>LEI: 529900YO5DSQCPEFDZ05 | Long             | EC               | CORP              | US        |    322611 | NS      | $44078340.93  | 2.25%             |  |  |  | No            |                  1 | On Loan: No      |
| iRhythm Technologies Inc                | iRhythm Technologies Inc                               | CUSIP: 450056106<br>LEI: 549300FJI72RJGDQS384 | Long             | EC               | CORP              | US        |    205881 | NS      | $28860398.58  | 1.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Sportradar Group AG                     | Sportradar Group AG                                    | CUSIP: 000000000<br>LEI: 549300H1P33YOAT7Z533 | Long             | EC               | CORP              | CH        |    698549 | NS      | $20656093.93  | 1.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Modine Manufacturing Co                 | Modine Manufacturing Co                                | CUSIP: 607828100<br>LEI: Z35SZFYJR8GZZRSIUU09 | Long             | EC               | CORP              | US        |    238191 | NS      | $32050980.96  | 1.63%             |  |  |  | No            |                  1 | On Loan: No      |
| Leonardo DRS Inc                        | Leonardo DRS Inc                                       | CUSIP: 52661A108<br>LEI: 549300HMMEWVG3PPQU18 | Long             | EC               | CORP              | US        |    508040 | NS      | $21134464.00  | 1.08%             |  |  |  | No            |                  1 | On Loan: No      |
| Dutch Bros Inc                          | Dutch Bros Inc                                         | CUSIP: 26701L100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    406103 | NS      | $24069724.81  | 1.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Remitly Global Inc                      | Remitly Global Inc                                     | CUSIP: 75960P104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    522625 | NS      | $8623312.50   | 0.44%             |  |  |  | No            |                  1 | On Loan: No      |
| Ascendis Pharma A/S                     | Ascendis Pharma A/S                                    | CUSIP: 04351P101<br>LEI: 549300B66JN3W3J8GH73 | Long             | EC               | CORP              | DK        |    111187 | NS      | $19290944.50  | 0.98%             |  |  |  | No            |                  1 | On Loan: No      |
| StoneX Group Inc                        | StoneX Group Inc                                       | CUSIP: 861896108<br>LEI: 549300JUF07L8VF02M60 | Long             | EC               | CORP              | US        |    232109 | NS      | $22570279.16  | 1.15%             |  |  |  | No            |                  1 | On Loan: No      |
| Madrigal Pharmaceuticals Inc            | Madrigal Pharmaceuticals Inc                           | CUSIP: 558868105<br>LEI: 549300CHIMT2EUSNJB60 | Long             | EC               | CORP              | US        |     60901 | NS      | $18423161.51  | 0.94%             |  |  |  | No            |                  1 | On Loan: No      |
| MasTec Inc                              | MasTec Inc                                             | CUSIP: 576323109<br>LEI: 549300TMDIT8WREDOF45 | Long             | EC               | CORP              | US        |    211606 | NS      | $40037971.26  | 2.04%             |  |  |  | No            |                  1 | On Loan: No      |
| Fixed Income Clearing Corp              | FIXED INC CLEARING CORP.REPO                           | CUSIP: 000000000<br>LEI: 549300H47WTHXPU08X20 | Long             | RA               | CORP              | US        |  29465640 | PA      | $29465640.45  | 1.50%             |  |  |  | No            |                  2 | On Loan: No      |
| Penumbra Inc                            | Penumbra Inc                                           | CUSIP: 70975L107<br>LEI: 549300RGE06P3ECANU72 | Long             | EC               | CORP              | US        |     87602 | NS      | $22099356.54  | 1.13%             |  |  |  | No            |                  1 | On Loan: No      |
| Comfort Systems USA Inc                 | Comfort Systems USA Inc                                | CUSIP: 199908104<br>LEI: 5299009DT1ZA5HTU6R38 | Long             | EC               | CORP              | US        |     78746 | NS      | $55382061.80  | 2.82%             |  |  |  | No            |                  1 | On Loan: No      |
| Monday.com Ltd                          | Monday.com Ltd                                         | CUSIP: 000000000<br>LEI: 984500MDAFVD86E3B328 | Long             | EC               | CORP              | IL        |     63692 | NS      | $16705774.68  | 0.85%             |  |  |  | No            |                  1 | On Loan: No      |
| Wingstop Inc                            | Wingstop Inc                                           | CUSIP: 974155103<br>LEI: 549300SSH3F8HPIM3Q47 | Long             | EC               | CORP              | US        |     54740 | NS      | $20655591.60  | 1.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Rubrik Inc                              | Rubrik Inc                                             | CUSIP: 781154109<br>LEI: 254900TRGK2WTBYMYU27 | Long             | EC               | CORP              | US        |    357002 | NS      | $33897339.90  | 1.73%             |  |  |  | No            |                  1 | On Loan: No      |
| Duolingo Inc                            | Duolingo Inc                                           | CUSIP: 26603R106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     62806 | NS      | $21765419.30  | 1.11%             |  |  |  | No            |                  1 | On Loan: No      |
| CyberArk Software Ltd                   | CyberArk Software Ltd                                  | CUSIP: 000000000<br>LEI: 529900YEXNDM894PWS93 | Long             | EC               | CORP              | IL        |     44567 | NS      | $18337983.49  | 0.94%             |  |  |  | No            |                  1 | On Loan: No      |
| Doximity Inc                            | Doximity Inc                                           | CUSIP: 26622P107<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    255440 | NS      | $15007100.00  | 0.77%             |  |  |  | No            |                  1 | On Loan: No      |
| Universal Technical Institute Inc       | Universal Technical Institute Inc                      | CUSIP: 913915104<br>LEI: 2549003YOJGAZ0PVFV48 | Long             | EC               | CORP              | US        |   1051899 | NS      | $33892185.78  | 1.73%             |  |  |  | No            |                  1 | On Loan: No      |
| ServiceTitan Inc                        | ServiceTitan Inc                                       | CUSIP: 81764X103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    139858 | NS      | $16322827.18  | 0.83%             |  |  |  | No            |                  1 | On Loan: No      |
| Calix Inc                               | Calix Inc                                              | CUSIP: 13100M509<br>LEI: 5299002RQRZ4SXSCSJ58 | Long             | EC               | CORP              | US        |    400252 | NS      | $22690285.88  | 1.16%             |  |  |  | No            |                  1 | On Loan: No      |
| Hinge Health Inc                        | Hinge Health Inc                                       | CUSIP: 433313103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    370863 | NS      | $16670291.85  | 0.85%             |  |  |  | No            |                  1 | On Loan: —       |
| Adtalem Global Education Inc            | Adtalem Global Education Inc                           | CUSIP: 00737L103<br>LEI: 549300Z467EZLMODV621 | Long             | EC               | CORP              | US        |    204215 | NS      | $23335648.05  | 1.19%             |  |  |  | No            |                  1 | On Loan: No      |
| TransMedics Group Inc                   | TransMedics Group Inc                                  | CUSIP: 89377M109<br>LEI: 549300060GVOSMWARH50 | Long             | EC               | CORP              | US        |     78534 | NS      | $9343189.98   | 0.48%             |  |  |  | No            |                  1 | On Loan: No      |
| Guidewire Software Inc                  | Guidewire Software Inc                                 | CUSIP: 40171V100<br>LEI: 549300WXSG0J8IXZCK32 | Long             | EC               | CORP              | US        |    162963 | NS      | $36865489.86  | 1.88%             |  |  |  | No            |                  1 | On Loan: No      |
| Tarsus Pharmaceuticals Inc              | Tarsus Pharmaceuticals Inc                             | CUSIP: 87650L103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    406248 | NS      | $15770547.36  | 0.80%             |  |  |  | No            |                  1 | On Loan: No      |
| Guardant Health Inc                     | Guardant Health Inc                                    | CUSIP: 40131M109<br>LEI: 254900M8C3E5VC8BR186 | Long             | EC               | CORP              | US        |    644837 | NS      | $26425420.26  | 1.35%             |  |  |  | No            |                  1 | On Loan: No      |
| Fidelity Investments                    | Fidelity Investments Money Market Government Portfolio | CUSIP: 31607A703<br>LEI: E57ODZWZ7FF32TWEFA76 | Long             | STIV             | RF                | US        |  26211888 | NS      | $26211888.00  | 1.34%             |  |  |  | No            |                  1 | On Loan: No      |
| Rambus Inc                              | Rambus Inc                                             | CUSIP: 750917106<br>LEI: 2549000211GDCQSLV833 | Long             | EC               | CORP              | US        |    230995 | NS      | $17077460.35  | 0.87%             |  |  |  | No            |                  1 | On Loan: No      |
| GeneDx Holdings Corp                    | GeneDx Holdings Corp                                   | CUSIP: 81663L200<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    244444 | NS      | $24921065.80  | 1.27%             |  |  |  | No            |                  1 | On Loan: No      |
| BWX Technologies Inc                    | BWX Technologies Inc                                   | CUSIP: 05605H100<br>LEI: 549300NP85N265KWMS58 | Long             | EC               | CORP              | US        |     66881 | NS      | $10161230.33  | 0.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Construction Partners Inc               | Construction Partners Inc                              | CUSIP: 21044C107<br>LEI: 549300MHLFL4E8JLZU44 | Long             | EC               | CORP              | US        |    274671 | NS      | $27700570.35  | 1.41%             |  |  |  | No            |                  1 | On Loan: No      |
| Badger Meter Inc                        | Badger Meter Inc                                       | CUSIP: 056525108<br>LEI: 5493002JENE20OGTUG20 | Long             | EC               | CORP              | US        |     78550 | NS      | $14827098.00  | 0.76%             |  |  |  | No            |                  1 | On Loan: No      |
| ADMA Biologics Inc                      | ADMA Biologics Inc                                     | CUSIP: 000899104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |   1275740 | NS      | $23856338.00  | 1.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Rocket Lab Corp                         | Rocket Lab Corp                                        | CUSIP: 773121108<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    467849 | NS      | $21483626.08  | 1.10%             |  |  |  | No            |                  1 | On Loan: No      |
| AeroVironment Inc                       | AeroVironment Inc                                      | CUSIP: 008073108<br>LEI: 529900PGHVI29YLZ6221 | Long             | EC               | CORP              | US        |     61072 | NS      | $16345310.08  | 0.83%             |  |  |  | No            |                  1 | On Loan: No      |
| Reddit Inc                              | Reddit Inc                                             | CUSIP: 75734B100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    174221 | NS      | $27978150.39  | 1.43%             |  |  |  | No            |                  1 | On Loan: No      |
| Vital Farms Inc                         | Vital Farms Inc                                        | CUSIP: 92847W103<br>LEI: 549300S6NYY7ER3XOT61 | Long             | EC               | CORP              | US        |    288164 | NS      | $10719700.80  | 0.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Chime Financial Inc                     | Chime Financial Inc                                    | CUSIP: 16935C109<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    437939 | NS      | $15069480.99  | 0.77%             |  |  |  | No            |                  1 | On Loan: —       |
| Oddity Tech Ltd                         | Oddity Tech Ltd                                        | CUSIP: 000000000<br>LEI: 254900QH12XZS53G0V57 | Long             | EC               | CORP              | IL        |    204882 | NS      | $14356081.74  | 0.73%             |  |  |  | No            |                  1 | On Loan: No      |
| Crane Co                                | Crane Co                                               | CUSIP: 224408104<br>LEI: 5493000CQRQOTHUODL75 | Long             | EC               | CORP              | US        |    142521 | NS      | $27901336.17  | 1.42%             |  |  |  | No            |                  1 | On Loan: No      |
| Citibank NA                             | CITIBANK NA DDCA                                       | CUSIP: 000000000<br>LEI: E57ODZWZ7FF32TWEFA76 | Long             | STIV             | RF                | US        |   2912432 | NS      | $2912432.00   | 0.15%             |  |  |  | No            |                  1 | On Loan: No      |
| Bridgebio Pharma Inc                    | Bridgebio Pharma Inc                                   | CUSIP: 10806X102<br>LEI: 54930028YG89VTY2J114 | Long             | EC               | CORP              | US        |    645707 | NS      | $30522569.89  | 1.56%             |  |  |  | No            |                  1 | On Loan: No      |
| Fabrinet                                | Fabrinet                                               | CUSIP: 000000000<br>LEI: 5493004TETZ6IYF7CV44 | Long             | EC               | CORP              | KY        |     82527 | NS      | $26716465.71  | 1.36%             |  |  |  | No            |                  1 | On Loan: No      |
| Arcellx Inc                             | Arcellx Inc                                            | CUSIP: 03940C100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    255197 | NS      | $18218513.83  | 0.93%             |  |  |  | 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        |    575448 | NS      | $64191224.40  | 3.27%             |  |  |  | No            |                  1 | On Loan: No      |
| TG Therapeutics Inc                     | TG Therapeutics Inc                                    | CUSIP: 88322Q108<br>LEI: 529900X21UKABN9NJ529 | Long             | EC               | CORP              | US        |    403726 | NS      | $14332273.00  | 0.73%             |  |  |  | No            |                  1 | On Loan: No      |
| Life360 Inc                             | Life360 Inc                                            | CUSIP: 532206109<br>LEI: 254900VO9VDOQBQAHF07 | Long             | EC               | CORP              | US        |    154071 | NS      | $11800297.89  | 0.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Insmed Inc                              | Insmed Inc                                             | CUSIP: 457669307<br>LEI: 529900Q55QAG41CCAC11 | Long             | EC               | CORP              | US        |    332120 | NS      | $35629833.60  | 1.82%             |  |  |  | No            |                  1 | On Loan: No      |
| Maplebear Inc                           | Maplebear Inc                                          | CUSIP: 565394103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    411738 | NS      | $19751071.86  | 1.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Abivax SA                               | Abivax SA                                              | CUSIP: 00370M103<br>LEI: 969500D8TMNB184OJU95 | Long             | EC               | CORP              | FR        |    138439 | NS      | $9935767.03   | 0.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Natera Inc                              | Natera Inc                                             | CUSIP: 632307104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     87610 | NS      | $11709952.60  | 0.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Kratos Defense & Security Solutions Inc | Kratos Defense & Security Solutions Inc                | CUSIP: 50077B207<br>LEI: 5493000EKBN0UY1F3F88 | Long             | EC               | CORP              | US        |    558708 | NS      | $32796159.60  | 1.67%             |  |  |  | No            |                  1 | On Loan: No      |
| SiTime Corp                             | SiTime Corp                                            | CUSIP: 82982T106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     83187 | NS      | $16874482.95  | 0.86%             |  |  |  | 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        |   1091176 | NS      | $31338574.72  | 1.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Commvault Systems Inc                   | Commvault Systems Inc                                  | CUSIP: 204166102<br>LEI: 65T5VRP62VXG39YFML83 | Long             | EC               | CORP              | US        |    105734 | NS      | $20084173.30  | 1.02%             |  |  |  | No            |                  1 | On Loan: No      |
| Accelerant Holdings                     | Accelerant Holdings                                    | CUSIP: 000000000<br>LEI: 213800VS4CX9ZONTD965 | Long             | EC               | CORP              | KY        |    326892 | NS      | $9002605.68   | 0.46%             |  |  |  | No            |                  1 | On Loan: No      |
| FTAI Aviation Ltd                       | FTAI Aviation Ltd                                      | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | KY        |    139156 | NS      | $19149257.16  | 0.98%             |  |  |  | No            |                  1 | On Loan: No      |
| Klaviyo Inc                             | Klaviyo Inc                                            | CUSIP: 49845K101<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    844487 | NS      | $26263545.70  | 1.34%             |  |  |  | No            |                  1 | On Loan: No      |
| Celsius Holdings Inc                    | Celsius Holdings Inc                                   | CUSIP: 15118V207<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    320018 | NS      | $14509616.12  | 0.74%             |  |  |  | No            |                  1 | On Loan: No      |
| Mercury Systems Inc                     | Mercury Systems Inc                                    | CUSIP: 589378108<br>LEI: 549300P3B84SGK7HH679 | Long             | EC               | CORP              | US        |    271686 | NS      | $14287966.74  | 0.73%             |  |  |  | No            |                  1 | On Loan: No      |
| PROCEPT BioRobotics Corp                | PROCEPT BioRobotics Corp                               | CUSIP: 74276L105<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    176406 | NS      | $8557455.06   | 0.44%             |  |  |  | No            |                  1 | On Loan: No      |
| PTC Therapeutics Inc                    | PTC Therapeutics Inc                                   | CUSIP: 69366J200<br>LEI: 549300UJLWOIWFDGB318 | Long             | EC               | CORP              | US        |    278376 | NS      | $14506173.36  | 0.74%             |  |  |  | No            |                  1 | On Loan: No      |
| Q2 Holdings Inc                         | Q2 Holdings Inc                                        | CUSIP: 74736L109<br>LEI: 549300M9RKR9DZXWS696 | Long             | EC               | CORP              | US        |    370631 | NS      | $30095237.20  | 1.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Mirum Pharmaceuticals Inc               | Mirum Pharmaceuticals Inc                              | CUSIP: 604749101<br>LEI: 254900YZKR40F7F27K81 | Long             | EC               | CORP              | US        |    277083 | NS      | $14319649.44  | 0.73%             |  |  |  | No            |                  1 | On Loan: No      |
| Stride Inc                              | Stride Inc                                             | CUSIP: 86333M108<br>LEI: 254900BRWS3AFONWU277 | Long             | EC               | CORP              | US        |    211139 | NS      | $27074353.97  | 1.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Loar Holdings Inc                       | Loar Holdings Inc                                      | CUSIP: 53947R105<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    321902 | NS      | $23791776.82  | 1.21%             |  |  |  | No            |                  1 | On Loan: No      |
| Argan Inc                               | Argan Inc                                              | CUSIP: 04010E109<br>LEI: 529900E4KZWBV9KGBS83 | Long             | EC               | CORP              | US        |    121921 | NS      | $29868206.58  | 1.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Karman Holdings Inc                     | Karman Holdings Inc                                    | CUSIP: 485924104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    466934 | NS      | $24140487.80  | 1.23%             |  |  |  | No            |                  1 | On Loan: —       |

### Signature

**Date Signed:** 2025-08-28

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

**Signature:** Michael Hebert

**Name of Signer:** Michael Hebert

**Title:** Chief Financial Officer