Form NPORT-P LORD ABBETT DEVELOPING For: Apr 30

  
    NPORT-P
    false
    
      
      
        
          0000276914
          XXXXXXXX
        
      
      
      
      
        S000006834
        C000188220
        C000018475
        C000151974
        C000151972
        C000054856
        C000151973
        C000018473
        C000018476
        C000018477
        C000054857
        C000054855
      
      
      
    
  
  
    
      LORD ABBETT DEVELOPING GROWTH FUND, INC.
      811-02871
      0000276914
      549300HWJ2W28SDTJF85
      90 HUDSON ST.
      JERSEY CITY
      
      07302
      201-827-2000
      LORD ABBETT DEVELOPING GROWTH FUND INC
      S000006834
      549300HWJ2W28SDTJF85
      2022-07-31
      2022-04-30
      N
    
    
      3010424192.12
      66755387.52
      2943668804.60
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      
        
        
        
        
        
        
        
        
        
        
      
      N
      
        
          
          
          
          
          
          
          
          
          
          
          
        
        
        
        
      
      
      
      
      
    
    
      
        Parsons Corp
        549300ZXH0VRBSEPX752
        
        70202L102
        
          
        
        625102.00000000
        NS
        USD
        23085016.86000000
        0.784226025153
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Sonos Inc
        549300WEPU6075I77M08
        
        83570H108
        
          
        
        968220.00000000
        NS
        USD
        22094780.40000000
        0.750586491437
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Inter Parfums Inc
        N/A
        
        458334109
        
          
        
        307959.00000000
        NS
        USD
        25169489.07000000
        0.855038074618
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Piper Sandler Cos
        QUQDBTUSOAKFEVMRMF78
        
        724078100
        
          
        
        229891.00000000
        NS
        USD
        26432867.18000000
        0.897956561509
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        DigitalOcean Holdings Inc
        549300EPISPY3RE3DL21
        
        25402D102
        
          
        
        241974.00000000
        NS
        USD
        9541034.82000000
        0.324120526232
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Kforce Inc
        5493003RDQQDVXY2SK46
        
        493732101
        
          
        
        233633.00000000
        NS
        USD
        16365991.65000000
        0.555972588506
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Bumble Inc
        N/A
        
        12047B105
        
          
        
        900544.00000000
        NS
        USD
        21604050.56000000
        0.733915803511
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        BioCryst Pharmaceuticals Inc
        549300Z0INP1Z5NP6J59
        
        09058V103
        
          
        
        2451869.00000000
        NS
        USD
        22777863.01000000
        0.773791636287
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        RBC Bearings Inc
        N/A
        
        75524B104
        
          
        
        172957.00000000
        NS
        USD
        29117310.95000000
        0.989150372640
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        SeaWorld Entertainment Inc
        529900G0H4NV3IIK3269
        
        81282V100
        
          
        
        348274.00000000
        NS
        USD
        23487598.56000000
        0.797902213839
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Synaptics Inc
        549300AJ3LI4FWNRQX29
        
        87157D109
        
          
        
        189552.00000000
        NS
        USD
        28137098.88000000
        0.955851379612
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Fiverr International Ltd
        549300Z8OREY6THCPF67
        
        000000000
        
          
        
        281309.00000000
        NS
        USD
        14979704.25000000
        0.508878723944
        Long
        EC
        CORP
        IL
        
        N
        
        1
        
          N
          N
          
        
      
      
        Semtech Corp
        549300J7WUY317SW6O61
        
        816850101
        
          
        
        840938.00000000
        NS
        USD
        50119904.80000000
        1.702633962138
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Warby Parker Inc
        N/A
        
        93403J106
        
          
        
        248662.00000000
        NS
        USD
        5791337.98000000
        0.196738776147
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          
        
      
      
        Customers Bancorp Inc
        549300WLBCHYKZ53FN68
        
        23204G100
        
          
        
        633861.00000000
        NS
        USD
        26666532.27000000
        0.905894448055
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        CEVA Inc
        529900G9T7CVU2J2VU73
        
        157210105
        
          
        
        507542.00000000
        NS
        USD
        18444076.28000000
        0.626567644130
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Planet Fitness Inc
        549300LLE5HUPF6H8G33
        
        72703H101
        
          
        
        782716.00000000
        NS
        USD
        62640761.48000000
        2.127982651516
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Axonics Inc
        549300LJY4X7N57VJL05
        
        05465P101
        
          
        
        882220.00000000
        NS
        USD
        45716640.40000000
        1.553049729254
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        iRhythm Technologies Inc
        549300FJI72RJGDQS384
        
        450056106
        
          
        
        456338.00000000
        NS
        USD
        56298419.06000000
        1.912525586167
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Tandem Diabetes Care Inc
        549300JEPFOD0K4D3I05
        
        875372203
        
          
        
        406906.00000000
        NS
        USD
        39258290.88000000
        1.333651762000
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Helen of Troy Ltd
        N/A
        
        000000000
        
          
        
        42622.00000000
        NS
        USD
        9142845.22000000
        0.310593542511
        Long
        EC
        CORP
        BM
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Balchem Corp
        549300VR70OPMHUI3557
        
        057665200
        
          
        
        253652.00000000
        NS
        USD
        31249926.40000000
        1.061597906366
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        MELI Kaszek Pioneer Corp
        N/A
        
        000000000
        
          
        
        961552.00000000
        NS
        USD
        9807830.40000000
        0.333183895711
        Long
        EC
        CORP
        KY
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Tetra Tech Inc
        549300UJ1LP7JGJC5P32
        
        88162G103
        
          
        
        260737.00000000
        NS
        USD
        36315449.36000000
        1.233679865861
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Globant SA
        2221008DCMSPYS42DS88
        
        000000000
        
          
        
        170682.00000000
        NS
        USD
        36865605.18000000
        1.252369326413
        Long
        EC
        CORP
        LU
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Inari Medical Inc
        N/A
        
        45332Y109
        
          
        
        375540.00000000
        NS
        USD
        30306078.00000000
        1.029534231318
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Evoqua Water Technologies Corp
        529900YQAOMEZRGRRP43
        
        30057T105
        
          
        
        1526810.00000000
        NS
        USD
        63652708.90000000
        2.162359732879
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Intellia Therapeutics Inc
        5493002T5BCPE5DZC723
        
        45826J105
        
          
        
        311192.00000000
        NS
        USD
        15257743.76000000
        0.518324063364
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Avalara Inc
        549300Q16CMW239SS315
        
        05338G106
        
          
        
        428855.00000000
        NS
        USD
        32622999.85000000
        1.108242877018
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Fixed Income Clearing Corp
        549300H47WTHXPU08X20
        
        000000000
        
          
        
        38824233.72000000
        PA
        USD
        38824233.72000000
        1.318906313758
        Long
        RA
        CORP
        US
        N
        
        2
        
          Repurchase
          
          N
          0.00000000
          2022-05-02
          
            
              36257900.00000000
              USD
              39600766.92000000
              USD
              UST
            
          
        
        
          N
          N
          N
        
      
      
        Papa John's International Inc
        HZYLD3DK5XOX0WBVNB56
        
        698813102
        
          
        
        361061.00000000
        NS
        USD
        32874604.05000000
        1.116790176891
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Boot Barn Holdings Inc
        529900QE1BFMYA3N4E71
        
        099406100
        
          
        
        386628.00000000
        NS
        USD
        34819717.68000000
        1.182868046350
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Gogo Inc
        549300VL3DIHSFHYTO04
        
        38046C109
        
          
        
        1086732.00000000
        NS
        USD
        20006736.12000000
        0.679653094422
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          
        
      
      
        TaskUS Inc
        549300VFPOK2Y6GLWE32
        
        87652V109
        
          
        
        543098.00000000
        NS
        USD
        15690101.22000000
        0.533011770735
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Inspire Medical Systems Inc
        549300XQQCQ7HCJKTW25
        
        457730109
        
          
        
        318399.00000000
        NS
        USD
        65513778.24000000
        2.225582515859
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        BJ's Wholesale Club Holdings Inc
        549300UCIWH1C93V0J03
        
        05550J101
        
          
        
        346989.00000000
        NS
        USD
        22328742.15000000
        0.758534455884
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Comfort Systems USA Inc
        5299009DT1ZA5HTU6R38
        
        199908104
        
          
        
        462444.00000000
        NS
        USD
        39039522.48000000
        1.326219934083
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Axon Enterprise Inc
        549300QP2IEEGFE16681
        
        05464C101
        
          
        
        250708.00000000
        NS
        USD
        28129437.60000000
        0.955591116637
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Duolingo Inc
        N/A
        
        26603R106
        
          
        
        184058.00000000
        NS
        USD
        15915495.26000000
        0.540668679680
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          
        
      
      
        Saia Inc
        549300WNPG4N9GBOYB29
        
        78709Y105
        
          
        
        77344.00000000
        NS
        USD
        15929770.24000000
        0.541153618066
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Simply Good Foods Co/The
        N/A
        
        82900L102
        
          
        
        1188718.00000000
        NS
        USD
        49510104.70000000
        1.681918313046
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        CyberArk Software Ltd
        529900YEXNDM894PWS93
        
        000000000
        
          
        
        259028.00000000
        NS
        USD
        40703659.92000000
        1.382752701540
        Long
        EC
        CORP
        IL
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Dick's Sporting Goods Inc
        529900SSBV5I4LWSK313
        
        253393102
        
          
        
        325335.00000000
        NS
        USD
        31368800.70000000
        1.065636210533
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Mirati Therapeutics Inc
        529900GYRW59IDQV6N54
        
        60468T105
        
          
        
        171683.00000000
        NS
        USD
        10608292.57000000
        0.360376566596
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Calix Inc
        5299002RQRZ4SXSCSJ58
        
        13100M509
        
          
        
        1445871.00000000
        NS
        USD
        57704711.61000000
        1.960299049941
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Marriott Vacations Worldwide Corp
        549300WA6BT5H4F7IO94
        
        57164Y107
        
          
        
        200349.00000000
        NS
        USD
        29918116.17000000
        1.016354697350
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Cerevel Therapeutics Holdings Inc
        N/A
        
        15678U128
        
          
        
        821620.00000000
        NS
        USD
        24057033.60000000
        0.817246612880
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Silicon Motion Technology Corp
        5299005RBVBZQJTYFC89
        
        82706C108
        
          
        
        404110.00000000
        NS
        USD
        30684072.30000000
        1.042375156201
        Long
        EC
        CORP
        KY
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Eagle Materials Inc
        529900KRXRGXL61SG039
        
        26969P108
        
          
        
        262622.00000000
        NS
        USD
        32386545.04000000
        1.100210220300
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Grocery Outlet Holding Corp
        N/A
        
        39874R101
        
          
        
        172435.00000000
        NS
        USD
        5805886.45000000
        0.197233005320
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Fidelity Investments
        E57ODZWZ7FF32TWEFA76
        
        31607A703
        
          
        
        38369807.55000000
        NS
        USD
        38369807.55000000
        1.303468905538
        Long
        STIV
        RF
        US
        N
        
        1
        
          
          N
          N
        
      
      
        Intra-Cellular Therapies Inc
        5299002U2KGF193IJA20
        
        46116X101
        
          
        
        1331485.00000000
        NS
        USD
        67386455.85000000
        2.289199645853
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Shift4 Payments Inc
        N/A
        
        82452J109
        
          
        
        268822.00000000
        NS
        USD
        14102402.12000000
        0.479075706409
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Rambus Inc
        2549000211GDCQSLV833
        
        750917106
        
          
        
        1098818.00000000
        NS
        USD
        27371556.38000000
        0.929844972274
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Krystal Biotech Inc
        549300YONUY68210OE41
        
        501147102
        
          
        
        810139.00000000
        NS
        USD
        49102524.79000000
        1.668072329104
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Diodes Inc
        549300XP2X1ARVH3BX23
        
        254543101
        
          
        
        607476.00000000
        NS
        USD
        44363972.28000000
        1.507097952414
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Callaway Golf Co
        5493005UB0KFRKBPCU72
        
        131193104
        
          
        
        1181393.00000000
        NS
        USD
        25919762.42000000
        0.880525770409
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Cargurus Inc
        54930027BKQN6B7X7G78
        
        141788109
        
          
        
        1076034.00000000
        NS
        USD
        35164791.12000000
        1.194590609685
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Popular Inc
        5493008CARDZMVQ3LO89
        
        733174700
        
          
        
        256071.00000000
        NS
        USD
        19970977.29000000
        0.678438323591
        Long
        EC
        CORP
        PR
        N
        
        1
        
          N
          N
          N
        
      
      
        AeroVironment Inc
        529900PGHVI29YLZ6221
        
        008073108
        
          
        
        315636.00000000
        NS
        USD
        25351883.52000000
        0.861234235331
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Karuna Therapeutics Inc
        N/A
        
        48576A100
        
          
        
        228845.00000000
        NS
        USD
        25507063.70000000
        0.866505894282
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Procore Technologies Inc
        N/A
        
        74275K108
        
          
        
        444455.00000000
        NS
        USD
        24653918.85000000
        0.837523528851
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Crocs Inc
        549300B0J6YCXD63OG72
        
        227046109
        
          
        
        320529.00000000
        NS
        USD
        21292741.47000000
        0.723340256102
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Rush Enterprises Inc
        529900V3XHTN7A6DFT17
        
        781846209
        
          
        
        351287.00000000
        NS
        USD
        17873482.56000000
        0.607183883325
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Lumentum Holdings Inc
        549300JLWRRC38DWEF52
        
        55024U109
        
          
        
        279074.00000000
        NS
        USD
        22663599.54000000
        0.769909967608
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        II-VI Inc
        549300O5C25A0MMHHU33
        
        902104108
        
          
        
        549158.00000000
        NS
        USD
        33613961.18000000
        1.141907035447
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Citibank NA
        E57ODZWZ7FF32TWEFA76
        
        000000000
        
          
        
        4263311.94999999
        NS
        USD
        4263311.94999999
        0.144829878393
        Long
        STIV
        RF
        US
        N
        
        1
        
          
          N
          N
        
      
      
        Littelfuse Inc
        549300MY7HLQFYTPCX75
        
        537008104
        
          
        
        114604.00000000
        NS
        USD
        26272967.00000000
        0.892524558433
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Envista Holdings Corp
        549300BX623VURJZ5269
        
        29415F104
        
          
        
        527147.00000000
        NS
        USD
        20885564.14000000
        0.709507948291
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Xenon Pharmaceuticals Inc
        549300XV44Q9Z1MIPQ03
        
        98420N105
        
          
        
        1175384.00000000
        NS
        USD
        33228105.68000000
        1.128799056064
        Long
        EC
        CORP
        CA
        N
        
        1
        
          N
          N
          N
        
      
      
        Flywire Corp
        54930055DSV7NNY4VY66
        
        302492103
        
          
        
        549875.00000000
        NS
        USD
        16776686.25000000
        0.569924382246
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Integral Ad Science Holding Corp
        N/A
        
        45828L108
        
          
        
        1189478.00000000
        NS
        USD
        14047735.18000000
        0.477218604146
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Shockwave Medical Inc
        549300LDXO56IC5Y1538
        
        82489T104
        
          
        
        288745.00000000
        NS
        USD
        43638031.85000000
        1.482436875432
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Sarepta Therapeutics Inc
        549300IKDPIED8J8IG21
        
        803607100
        
          
        
        264773.00000000
        NS
        USD
        19148383.36000000
        0.650493809972
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Endava PLC
        213800JJ6CRPCWCQVZ25
        
        29260V105
        
          
        
        474994.00000000
        NS
        USD
        47784396.40000000
        1.623293908789
        Long
        EC
        CORP
        GB
        N
        
        1
        
          N
          N
          N
        
      
      
        Gitlab Inc
        N/A
        
        37637K108
        
          
        
        469071.00000000
        NS
        USD
        22482573.03000000
        0.763760277476
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          
        
      
      
        Elastic NV
        2549003I48WHHH937I59
        
        000000000
        
          
        
        416878.00000000
        NS
        USD
        31741090.92000000
        1.078283360899
        Long
        EC
        CORP
        NL
        
        N
        
        1
        
          N
          N
          N
        
      
      
        ZipRecruiter Inc
        549300HLOVNNFCY2IV80
        
        98980B103
        
          
        
        1579982.00000000
        NS
        USD
        35565394.82000000
        1.208199603312
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        MKS Instruments Inc
        549300KEQATBHAGVF505
        
        55306N104
        
          
        
        190913.00000000
        NS
        USD
        21760263.74000000
        0.739222554724
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Ultragenyx Pharmaceutical Inc
        529900EV44GVDN1DCX77
        
        90400D108
        
          
        
        268663.00000000
        NS
        USD
        18991787.47000000
        0.645174057635
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Figs Inc
        N/A
        
        30260D103
        
          
        
        841551.00000000
        NS
        USD
        13178688.66000000
        0.447696039697
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Chegg Inc
        549300AKX7O8JG0O3G77
        
        163092109
        
          
        
        283856.00000000
        NS
        USD
        7022597.44000000
        0.238566153536
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        PubMatic Inc
        N/A
        
        74467Q103
        
          
        
        614646.00000000
        NS
        USD
        13872560.22000000
        0.471267698265
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        SiTime Corp
        N/A
        
        82982T106
        
          
        
        216637.00000000
        NS
        USD
        36518499.09000000
        1.240577711491
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Ameresco Inc
        529900NZXZGBCBXYY327
        
        02361E108
        
          
        
        511135.00000000
        NS
        USD
        25781649.40000000
        0.875833903586
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Jamf Holding Corp
        254900IHLXZU4Z5ANA12
        
        47074L105
        
          
        
        1197355.00000000
        NS
        USD
        36878534.00000000
        1.252808534111
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Rapid7 Inc
        549300GNVG5D60KEYN14
        
        753422104
        
          
        
        589993.00000000
        NS
        USD
        56356131.36000000
        1.914486143004
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Lantheus Holdings Inc
        5299005HUB5IOJGO7S39
        
        516544103
        
          
        
        1011378.00000000
        NS
        USD
        67165612.98000000
        2.281697345674
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Cytokinetics Inc
        549300BE5DY1HW7IHA64
        
        23282W605
        
          
        
        1190261.00000000
        NS
        USD
        47455706.07000000
        1.612127899573
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Sprout Social Inc
        N/A
        
        85209W109
        
          
        
        426174.00000000
        NS
        USD
        26115942.72000000
        0.887190253169
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Biohaven Pharmaceutical Holding Co Ltd
        5299007STZTNN32O9920
        
        000000000
        
          
        
        266760.00000000
        NS
        USD
        23786989.20000000
        0.808072877044
        Long
        EC
        CORP
        VG
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Clean Harbors Inc
        5493000SJVZVZJKHJF48
        
        184496107
        
          
        
        230929.00000000
        NS
        USD
        24231379.97000000
        0.823169370553
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Glacier Bancorp Inc
        549300SMJAUKZB5D7V74
        
        37637Q105
        
          
        
        423955.00000000
        NS
        USD
        19400180.80000000
        0.659047674442
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Anaplan Inc
        N/A
        
        03272L108
        
          
        
        465526.00000000
        NS
        USD
        30254534.74000000
        1.027783244253
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Livent Corp
        254900OOLQ2VNMZTJL47
        
        53814L108
        
          
        
        1712081.00000000
        NS
        USD
        36570050.16000000
        1.242328963871
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Five9 Inc
        254900MXP6EWY0SFFR59
        
        338307101
        
          
        
        287969.00000000
        NS
        USD
        31705386.90000000
        1.077070452030
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Alkermes PLC
        N/A
        
        000000000
        
          
        
        550584.00000000
        NS
        USD
        15884348.40000000
        0.539610583064
        Long
        EC
        CORP
        IE
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Duckhorn Portfolio Inc/The
        2549003BCT5CJSKJ9X51
        
        26414D106
        
          
        
        854042.00000000
        NS
        USD
        16585495.64000000
        0.563429405308
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Chart Industries Inc
        EM7QGKC1GYOF3LSZSL80
        
        16115Q308
        
          
        
        246957.00000000
        NS
        USD
        41691280.74000000
        1.416303378792
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        SpringWorks Therapeutics Inc
        N/A
        
        85205L107
        
          
        
        138355.00000000
        NS
        USD
        5936813.05000000
        0.201680740738
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        PacWest Bancorp
        549300YI8VMFO7G36V04
        
        695263103
        
          
        
        503375.00000000
        NS
        USD
        16556003.75000000
        0.562427530030
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Tenable Holdings Inc
        5493004S5OMPESF0EF83
        
        88025T102
        
          
        
        462122.00000000
        NS
        USD
        25522998.06000000
        0.867047203819
        Long
        EC
        CORP
        US
        N
        
        2
        
          N
          N
          N
        
      
      
        Clear Secure Inc
        N/A
        
        18467V109
        
          
        
        1385193.00000000
        NS
        USD
        42137571.06000000
        1.431464402318
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          
        
      
    
    
      
    
    
      2022-05-26
      LORD ABBETT DEVELOPING GROWTH FUND, INC.
      Michael Hebert
      Michael Hebert
      Chief Financial Officer
    
  
  XXXX

Schedule of Investments (unaudited)

April 30, 2022

 

 

See Notes to Schedule of Investments.

1

Schedule of Investments (unaudited)(continued)

April 30, 2022

 

 

2	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

April 30, 2022

 

 

See Notes to Schedule of Investments.

3

Schedule of Investments (unaudited)(concluded)

April 30, 2022

 

 

The following is a summary of the inputs used as of April 30, 2022 in valuing the Fund’s investments carried at fair value⁽¹⁾:

 

Investment Type(2)		Level 1				Level 2				Level 3				Total
Long-Term Investments
Common Stocks
Software		$	375,652,343			$	25,522,998			$	–			$	401,175,341
Remaining Industries			2,510,236,478				–				–				2,510,236,478
Short-Term Investments
Repurchase Agreements			–				38,824,234				–				38,824,234
Money Market Funds			38,369,808				–				–				38,369,808
Time Deposits			–				4,263,312				–				4,263,312
Total		$	2,924,258,629			$	68,610,544			$	–			$	2,992,869,173

(1)		Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
(2)		See Schedule of Investments for fair values in each industry and identification of foreign issuers and/or geography. The table above is presented by Investment Type. Industries are presented within an Investment Type should such Investment Type include securities classified as two or more levels within the three-tier fair value hierarchy. When applicable each Level 3 security is identified on the Schedule of Investments along with the valuation technique utilized.
		A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets.

 

4	See Notes to Schedule of Investments.

Notes to Schedule of Investments (unaudited)

 

1.	ORGANIZATION

 

Lord Abbett Developing Growth Fund, Inc. (the “Fund”) is registered under the Investment Company Act of 1940, as amended (the “Act”), as a diversified, open-end management investment company. The Fund was incorporated under Maryland law on August 21, 1978. The Fund’s predecessor corporation was organized on July 11, 1973.

 

The Fund’s investment objective is long-term growth of capital through a diversified and actively managed portfolio consisting of developing growth companies, many of which are traded over the counter.

 

2.	SIGNIFICANT ACCOUNTING POLICIES

 

(a)	Investment Valuation–Under procedures approved by the Fund’s Board of Directors (the “Board”), Lord, Abbett & Co. LLC (“Lord Abbett”), the Fund’s investment manager, has formed a Pricing Committee to administer the pricing and valuation of portfolio investments and to ensure that prices utilized reasonably reflect fair value. Among other things, these procedures allow the Fund to utilize independent pricing services, quotations from securities and financial instrument dealers and other market sources to determine fair value.
	Securities actively traded on any recognized U.S. or non-U.S. exchange or on The NASDAQ Stock Market LLC are valued at the last sale price or official closing price on the exchange or system on which they are principally traded. Events occurring after the close of trading on non-U.S. exchanges may result in adjustments to the valuation of foreign securities to reflect their fair value as of the close of regular trading on the New York Stock Exchange. When valuing foreign equity securities that meet certain criteria, the Board has approved the use of an independent fair valuation service that values such securities to reflect market trading that occurs after the close of the applicable foreign markets of comparable securities or other instruments that correlate to the fair-valued securities. Unlisted equity securities are valued at the last quoted sale price or, if no sale price is available, at the mean between the most recently quoted bid and asked prices.
	Securities for which prices are not readily available are valued at fair value as determined by the Pricing Committee. The Pricing Committee considers a number of factors, including observable and unobservable inputs, when arriving at fair value. The Pricing Committee may use related or comparable assets or liabilities, recent transactions, market multiples, book values and other relevant information to determine the fair value of portfolio investments. The Board or a designated committee thereof regularly reviews fair value determinations made by the Pricing Committee and may employ techniques such as reviewing related market activity, reviewing inputs and assumptions, and retrospectively comparing prices of subsequent purchases and sales transactions to fair value determinations made by the Pricing Committee.
	Investments in open-end money market mutual funds are valued at their NAV as of the close of each business day. Short-term securities with 60 days or less remaining to maturity are valued using the amortized cost method, which approximates fair value.
(b)	Fair Value Measurements–Fair value is defined as the price that the Fund would receive upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market of the investment. A three-tier hierarchy is used to maximize the use of observable market data and minimize the use of unobservable inputs and

 

5

Notes to Schedule of Investments (unaudited)(continued)

 

to establish classification of fair value measurements for disclosure purposes. Inputs refer broadly to the assumptions that market participants would use in pricing the asset or liability, including assumptions about risk - for example, the risk inherent in a particular valuation technique used to measure fair value (such as a pricing model) and/or the risk inherent in the inputs to the valuation technique. Inputs may be observable or unobservable. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The three-tier hierarchy classification is determined based on the lowest level of inputs that is significant to the fair value measurement, and is summarized in the three broad Levels listed below:

 

•	Level 1 –	unadjusted quoted prices in active markets for identical investments;
•	Level 2 –	other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk, etc.); and
•	Level 3 –	significant unobservable inputs (including the Fund’s own assumptions in determining the fair value of investments).

A summary of inputs used in valuing the Fund’s investments as of April 30, 2022 and, if applicable, Level 3 rollforwards for the period then ended is included in the Fund’s Schedule of Investments.   Changes in valuation techniques may result in transfers into or out of an assigned level within the three-tier hierarchy. The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities.

 

3.	FEDERAL TAX INFORMATION

 

It is the policy of the Fund to meet the requirements of Subchapter M of the Internal Revenue Code applicable to regulated investment companies and to distribute substantially all taxable income and capital gains to its shareholders. Therefore, no income tax provision is required.

 

The Fund files U.S. federal and various state and local tax returns. No income tax returns are currently under examination. The statute of limitations on the Fund’s filed U.S. federal tax returns remains open generally three years after the filing of the tax returns. The statute of limitations on the Fund’s, state and local tax returns may remain open for an additional year depending upon jurisdiction.

 

4.	SECURITIES LENDING AGREEMENT

 

The Fund has established a securities lending agreement with Citibank, N.A. for the lending of securities to qualified brokers in exchange for securities or cash collateral equal to at least the market value of securities loaned, plus interest, if applicable. Cash collateral is invested in an approved money market fund. In accordance with the Fund’s securities lending agreement, the market value of securities on loan is determined each day at the close of business and any additional collateral required to cover the value of securities on loan is delivered to the Fund on the

 

6

Notes to Schedule of Investments (unaudited)(continued)

 

next business day. As with other extensions of credit, the Fund may experience a delay in the recovery of its securities or incur a loss should the borrower of the securities breach its agreement with the Fund or becomes insolvent at a time when the collateral is insufficient to cover the cost of repurchasing securities on loan.

 

The initial collateral received by the Fund is required to have a value equal to at least 100% of the market value of the securities loaned. The collateral must be marked-to-market daily to cover increases in the market value of the securities loaned (or potentially a decline in the value of the collateral). In general, the risk of borrower default will be borne by Citibank, N.A.; the Fund will bear the risk of loss with respect to the investment of the cash collateral. The advantage of such loans is that the Fund continue to receive income on loaned securities while receiving a portion of any securities lending fees and earning returns on the cash amounts which may be reinvested for the purchase of investments in securities.

 

As of April 30, 2022, the market value of securities and collateral received for the fund was as follows:

 

Market Value of Securities Loaned		Collateral Received
$39,931,940		$42,633,120

 

5.	TRANSACTIONS WITH AFFILIATED ISSUERS

 

An affiliated issuer is one in which a Fund has ownership of at least 5% of the outstanding voting securities of the underlying issuer at any point during the fiscal year or any company which is under common ownership or control. The Fund had the following transactions with affiliated issuers during the period ended April 30, 2022:

 

Affiliated Issuer		Value at 7/31/2021		Purchases at Cost		Proceeds from Sales		Net Realized Gain (Loss)		Change in Appreciation (Depreciation)		Value at 4/30/2022		Shares as of 4/30/2022		Dividend Income
Pubmatic Inc.(a)		$   –		$46,513,275		$(17,447,718	)	$(11,060,122	)	$(4,132,875	)	$13,872,560		614,646		$   –

 

(a)	Not an affiliated issuer at July 31, 2021.

 

7

 

QPHR-DEV-3Q
(06/22)

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