NPORT-P
    false
    
      
      
        
          0000356349
          XXXXXXXX
        
      
      
      
      
        S000032712
        C000117930
        C000100957
        C000100956
        C000100960
        C000100961
        C000100959
        C000100958
        C000100962
        C000100963
      
      
      
    
  
  
    
      MFS SERIES TRUST XIII
      811-03327
      0000356349
      5493000SCRZM3WD72S74
      111 HUNTINGTON AVENUE 24TH FLOOR
      BOSTON
      
      02199
      617-954-5000
      MFS New Discovery Value Fund
      S000032712
      LRMRW30Z8FYTIFW1W860
      2022-02-28
      2021-11-30
      N
    
    
      4076057741.60
      2366610.71
      4073691130.89
      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
      
        
        
      
      
        
          
            UST
          
        
      
      
        
          
          
          
          
          
          
          
          
          
        
        
        
        
      
      
      
      
      
      
    
    
      
        WESCO International Inc
        529900TXOGREY3WNJ434
        WESCO International Inc
        95082P105
        
          
        
        261029.00000000
        NS
        USD
        32401529.77000000
        0.795385038504
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Zumiez Inc
        549300J0PDF58P6HZD25
        Zumiez Inc
        989817101
        
          
        
        985993.00000000
        NS
        USD
        45119039.68000000
        1.107571443938
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Plexus Corp
        549300W7HCBI5YT25I79
        Plexus Corp
        729132100
        
          
        
        597309.00000000
        NS
        USD
        50257579.26000000
        1.233711090143
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        First Interstate BancSystem Inc
        549300WRWYTYX0RCNJ43
        First Interstate BancSystem Inc
        32055Y201
        
          
        
        935055.00000000
        NS
        USD
        38150244.00000000
        0.936503106745
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Plains GP Holdings LP
        549300O56BSKRD8FAM12
        Plains GP Holdings LP
        72651A207
        
          
        
        4226687.00000000
        NS
        USD
        42266870.00000000
        1.037557061690
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Hanmi Financial Corp
        549300MSZ7RCG7EA6587
        Hanmi Financial Corp
        410495204
        
          
        
        1427585.00000000
        NS
        USD
        32077834.95000000
        0.787439055130
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Ardagh Metal Packaging SA
        5493009WKQTU4FN9G032
        Ardagh Metal Packaging SA
        000000000
        
          
        
        3008951.00000000
        NS
        USD
        28133691.85000000
        0.690619169349
        Long
        EC
        CORP
        LU
        
        N
        
        1
        
          N
          N
          N
        
      
      
        New Jersey Resources Corp
        549300QKBSQBIX4DQ583
        New Jersey Resources Corp
        646025106
        
          
        
        1087961.00000000
        NS
        USD
        40015205.58000000
        0.982283739593
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Stoneridge Inc
        PNBCIH9LE7WI83VJIF08
        Stoneridge Inc
        86183P102
        
          
        
        610472.00000000
        NS
        USD
        13326603.76000000
        0.327138296248
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        EXPRO GROUP HOLDINGS NV
        724500LJYA8QIT73H017
        Expro Group Holdings NV
        000000000
        
          
        
        999520.00000000
        NS
        USD
        14003275.20000000
        0.343749065652
        Long
        EC
        CORP
        NL
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Avient Corp
        SM8L9RZYIB34LNTWO040
        Avient Corp
        05368V106
        
          
        
        969735.00000000
        NS
        USD
        53345122.35000000
        1.309503362822
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Prestige Consumer Healthcare Inc
        N/A
        Prestige Consumer Healthcare Inc
        74112D101
        
          
        
        864787.00000000
        NS
        USD
        48384832.65000000
        1.187739352232
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Diversey Holdings Ltd
        N/A
        Diversey Holdings Ltd
        000000000
        
          
        
        3180077.00000000
        NS
        USD
        41913414.86000000
        1.028880529065
        Long
        EC
        CORP
        KY
        
        N
        
        1
        
          N
          N
          N
        
      
      
        CMC Materials Inc
        31F6V1MN00ZW3XWB4J69
        CMC Materials Inc
        12571T100
        
          
        
        219407.00000000
        NS
        USD
        29137249.60000000
        0.715254266064
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Jack in the Box Inc
        5493002OJW26P0SUUP68
        Jack in the Box Inc
        466367109
        
          
        
        331199.00000000
        NS
        USD
        27357037.40000000
        0.671554040819
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Agiliti Inc
        N/A
        Agiliti Inc
        00848J104
        
          
        
        1324717.00000000
        NS
        USD
        27898540.02000000
        0.684846718212
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        nVent Electric PLC
        N/A
        nVent Electric PLC
        000000000
        
          
        
        1277669.00000000
        NS
        USD
        44501211.27000000
        1.092405139225
        Long
        EC
        CORP
        IE
        
        N
        
        1
        
          N
          N
          N
        
      
      
        8x8 Inc
        254900XWSOC5U1BRW939
        8x8 Inc
        282914100
        
          
        
        835447.00000000
        NS
        USD
        18003882.85000000
        0.441955029763
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Nomad Foods Ltd
        5493000ZZ1837DS2SI43
        Nomad Foods Ltd
        000000000
        
          
        
        1880408.00000000
        NS
        USD
        44922947.12000000
        1.102757810462
        Long
        EC
        CORP
        VG
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Everest Re Group Ltd
        549300N24XF2VV0B3570
        Everest Re Group Ltd
        000000000
        
          
        
        134091.00000000
        NS
        USD
        34378250.58000000
        0.843909110322
        Long
        EC
        CORP
        BM
        
        N
        
        1
        
          N
          N
          N
        
      
      
        US Ecology Inc
        N/A
        US Ecology Inc
        91734M103
        
          
        
        556678.00000000
        NS
        USD
        18966019.46000000
        0.465573330196
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Methode Electronics Inc
        529900VM413LGLUS3F07
        Methode Electronics Inc
        591520200
        
          
        
        1020169.00000000
        NS
        USD
        45366915.43000000
        1.113656238834
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Owens Corning
        JO5M6676RDJIZ2U8X907
        Owens Corning
        690742101
        
          
        
        238633.00000000
        NS
        USD
        20245623.72000000
        0.496984750917
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        State Street Global Advisors
        5493008BJIBKQ5KTIF74
        State Street Navigator Securities Lending Government Money Market Portfolio
        857492706
        
          
        
        760642.35000000
        NS
        USD
        760642.35000000
        0.018672067310
        Long
        STIV
        RF
        US
        N
        
        1
        
          
          N
          N
        
      
      
        KBR Inc
        254900OFQDXZRKRCV808
        KBR Inc
        48242W106
        
          
        
        1245460.00000000
        NS
        USD
        54800240.00000000
        1.345223244454
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        API Group Corp
        213800NZT1VX6PZ7BT53
        API Group Corp
        00187Y100
        
          
        
        1574478.00000000
        NS
        USD
        36701082.18000000
        0.900929427410
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Arconic Corp
        549300B4YFWH3U74B152
        Arconic Corp
        03966V107
        
          
        
        1082991.00000000
        NS
        USD
        28937519.52000000
        0.710351339613
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Cohu Inc
        529900FJPORJ3JJ2XS33
        Cohu Inc
        192576106
        
          
        
        861939.00000000
        NS
        USD
        28418128.83000000
        0.697601460614
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Prosperity Bancshares Inc
        N/A
        Prosperity Bancshares Inc
        743606105
        
          
        
        776693.00000000
        NS
        USD
        55362677.04000000
        1.359029815004
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Kaiser Aluminum Corp
        N/A
        Kaiser Aluminum Corp
        483007704
        
          
        
        183033.00000000
        NS
        USD
        16332034.59000000
        0.400914896717
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Air Lease Corp
        5493004NW4M4P8TMMK63
        Air Lease Corp
        00912X302
        
          
        
        665831.00000000
        NS
        USD
        27026080.29000000
        0.663429784478
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Hostess Brands Inc
        N/A
        Hostess Brands Inc
        44109J106
        
          
        
        2490648.00000000
        NS
        USD
        42316109.52000000
        1.038765781704
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Graphic Packaging Holding Co
        N/A
        Graphic Packaging Holding Co
        388689101
        
          
        
        3434404.00000000
        NS
        USD
        67795134.96000000
        1.664218832054
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Axalta Coating Systems Ltd
        529900AGLPA40GV6H619
        Axalta Coating Systems Ltd
        000000000
        
          
        
        893169.00000000
        NS
        USD
        27080884.08000000
        0.664775094867
        Long
        EC
        CORP
        BM
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Energizer Holdings Inc
        5493000D6NN0V57UME20
        Energizer Holdings Inc
        29272W109
        
          
        
        616119.00000000
        NS
        USD
        22913465.61000000
        0.562474298462
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        CNO Financial Group Inc
        11XPYHB76MPM4Y4P2897
        CNO Financial Group Inc
        12621E103
        
          
        
        1975999.00000000
        NS
        USD
        44776137.34000000
        1.099153958935
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Phillips Edison & Co Inc
        549300UC1QJSQ49IC243
        Phillips Edison & Co Inc
        71844V201
        
          
        
        1101859.00000000
        NS
        USD
        34565316.83000000
        0.848501168090
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Premier Inc
        N/A
        Premier Inc
        74051N102
        
          
        
        1293027.00000000
        NS
        USD
        47932510.89000000
        1.176635865358
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Wintrust Financial Corp
        Q774KI4AW80FHFW33O61
        Wintrust Financial Corp
        97650W108
        
          
        
        458037.00000000
        NS
        USD
        40091978.61000000
        0.984168345655
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        First Hawaiian Inc
        5493002DJSH46F5OLV06
        First Hawaiian Inc
        32051X108
        
          
        
        1687073.00000000
        NS
        USD
        44285666.25000000
        1.087113991391
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Empire State Realty Trust Inc
        549300VOKY1DUEQSB456
        Empire State Realty Trust Inc
        292104106
        
          
        
        3349794.00000000
        NS
        USD
        30449627.46000000
        0.747470205315
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Toll Brothers Inc
        529900JB6IS9MSZGVR44
        Toll Brothers Inc
        889478103
        
          
        
        544161.00000000
        NS
        USD
        34537898.67000000
        0.847828113626
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Pactiv Evergreen Inc
        894500GNKGJRUSH1F791
        Pactiv Evergreen Inc
        69526K105
        
          
        
        2133887.00000000
        NS
        USD
        26481537.67000000
        0.650062481890
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Armstrong World Industries Inc
        KXMRXXOJ88Q45Y45MG74
        Armstrong World Industries Inc
        04247X102
        
          
        
        183969.00000000
        NS
        USD
        19495194.93000000
        0.478563403645
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        ChampionX Corp
        549300EP2909K6DYYP38
        ChampionX Corp
        15872M104
        
          
        
        2176763.00000000
        NS
        USD
        44427732.83000000
        1.090601407974
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        WNS Holdings Ltd
        529900RM7QHUD3W9DM42
        WNS Holdings Ltd
        92932M101
        
          
        
        217541.00000000
        NS
        USD
        18288671.87000000
        0.448945962822
        Long
        EC
        CORP
        JE
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Syneos Health Inc
        549300F1ZGKDS8P6GU13
        Syneos Health Inc
        87166B102
        
          
        
        574780.00000000
        NS
        USD
        55845624.80000000
        1.370885101635
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Regal Beloit Corp
        QH78R09VCJGQKPBPYU33
        Regal Beloit Corp
        758750103
        
          
        
        264375.00000000
        NS
        USD
        41797687.50000000
        1.026039681385
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        UMB Financial Corp
        549300MGEH3N3CUCV828
        UMB Financial Corp
        902788108
        
          
        
        559949.00000000
        NS
        USD
        56319670.42000000
        1.382521860652
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Zions Bancorp NA
        8WH0EE09O9V05QJZ3V89
        Zions Bancorp NA
        989701107
        
          
        
        716654.00000000
        NS
        USD
        45206534.32000000
        1.109719241530
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Lakeland Financial Corp
        N/A
        Lakeland Financial Corp
        511656100
        
          
        
        392509.00000000
        NS
        USD
        27718985.58000000
        0.680439058568
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Viper Energy Partners LP
        5299009LINL232255G03
        Viper Energy Partners LP
        92763M105
        
          
        
        1874498.00000000
        NS
        USD
        40414176.88000000
        0.992077592077
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Black Hills Corp
        3MGELCRSTNSAMJ962671
        Black Hills Corp
        092113109
        
          
        
        850214.00000000
        NS
        USD
        54515721.68000000
        1.338238956474
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Brixmor Property Group Inc
        5299007UXW6Y0W2EGZ95
        Brixmor Property Group Inc
        11120U105
        
          
        
        815789.00000000
        NS
        USD
        18551041.86000000
        0.455386558871
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Textainer Group Holdings Ltd
        529900OHEYRATAFMIT89
        Textainer Group Holdings Ltd
        000000000
        
          
        
        772295.00000000
        NS
        USD
        25230877.65000000
        0.619361577481
        Long
        EC
        CORP
        BM
        
        N
        
        1
        
          N
          N
          N
        
      
      
        GMS Inc
        52990057RENOQO4U0D72
        GMS Inc
        36251C103
        
          
        
        347466.00000000
        NS
        USD
        19412925.42000000
        0.476543871301
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        IMAX Corp
        5493002KS2T1Q0X7VZ21
        IMAX Corp
        45245E109
        
          
        
        1486312.00000000
        NS
        USD
        24509284.88000000
        0.601648089963
        Long
        EC
        CORP
        CA
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Paya Holdings Inc
        N/A
        Paya Holdings Inc
        70434P103
        
          
        
        3947043.00000000
        NS
        USD
        25418956.92000000
        0.623978502622
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Newell Brands Inc
        549300LWGYFM1TVO1Z12
        Newell Brands Inc
        651229106
        
          
        
        1161368.00000000
        NS
        USD
        24934570.96000000
        0.612087911401
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Verint Systems Inc
        549300KEQJS5FRVUCO94
        Verint Systems Inc
        92343X100
        
          
        
        813000.00000000
        NS
        USD
        38690670.00000000
        0.949769355526
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Selective Insurance Group Inc
        549300R3WGJWLE40R258
        Selective Insurance Group Inc
        816300107
        
          
        
        443533.00000000
        NS
        USD
        33504482.82000000
        0.822460067380
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Brunswick Corp/DE
        YM4O38W15AX4YLLQKU27
        Brunswick Corp/DE
        117043109
        
          
        
        273572.00000000
        NS
        USD
        25691146.52000000
        0.630660148119
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Portland General Electric Co
        GJOUP9M7C39GLSK9R870
        Portland General Electric Co
        736508847
        
          
        
        1123273.00000000
        NS
        USD
        54669696.91000000
        1.342018703761
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Broadstone Net Lease Inc
        549300U8D7PT70B49V21
        Broadstone Net Lease Inc
        11135E203
        
          
        
        1557162.00000000
        NS
        USD
        38929050.00000000
        0.955621051012
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Douglas Emmett Inc
        N/A
        Douglas Emmett Inc
        25960P109
        
          
        
        515553.00000000
        NS
        USD
        16894671.81000000
        0.414726381239
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Skechers USA Inc
        529900D2R54KZPA4XR56
        Skechers USA Inc
        830566105
        
          
        
        1382740.00000000
        NS
        USD
        62112680.80000000
        1.524727300236
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Life Storage Inc
        W9EE01AFDDF9DQCQZC68
        Life Storage Inc
        53223X107
        
          
        
        256216.00000000
        NS
        USD
        33856382.24000000
        0.831098410561
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        ICON PLC
        6354008SRQGEMC4XFI67
        ICON PLC
        000000000
        
          
        
        125262.00000000
        NS
        USD
        33879613.14000000
        0.831668677163
        Long
        EC
        CORP
        IE
        N
        
        1
        
          N
          N
          N
        
      
      
        Schneider National Inc
        529900V6GZ6G6E3BLV72
        Schneider National Inc
        80689H102
        
          
        
        1126556.00000000
        NS
        USD
        27713277.60000000
        0.680298940434
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Regis Corp
        5493000Q1S5TJIDIQH89
        Regis Corp
        758932107
        
          
        
        1859742.00000000
        NS
        USD
        5058498.24000000
        0.124174810447
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          
        
      
      
        Silgan Holdings Inc
        KAF673KJXD92C8KSLU49
        Silgan Holdings Inc
        827048109
        
          
        
        790395.00000000
        NS
        USD
        32777680.65000000
        0.804618700751
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Grand Canyon Education Inc
        529900XFER799IYOSW74
        Grand Canyon Education Inc
        38526M106
        
          
        
        393781.00000000
        NS
        USD
        28537309.07000000
        0.700527068770
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Two Harbors Investment Corp
        549300ZUIBT6KH4HU823
        Two Harbors Investment Corp
        90187B408
        
          
        
        7822333.00000000
        NS
        USD
        45995318.04000000
        1.129082116492
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        International Game Technology PLC
        549300UQ6KHRCZDRGZ76
        International Game Technology PLC
        000000000
        
          
        
        2110485.00000000
        NS
        USD
        57025304.70000000
        1.399843602957
        Long
        EC
        CORP
        GB
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Organon & Co
        549300AMCKY57OK2CO56
        Organon & Co
        68622V106
        
          
        
        633298.00000000
        NS
        USD
        18511300.54000000
        0.454410998409
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        East West Bancorp Inc
        N/A
        East West Bancorp Inc
        27579R104
        
          
        
        509436.00000000
        NS
        USD
        39226572.00000000
        0.962924550232
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Funko Inc
        529900NG9F0KL5P6NK67
        Funko Inc
        361008105
        
          
        
        922994.00000000
        NS
        USD
        15081721.96000000
        0.370222519955
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        SLM Corp
        N/A
        SLM Corp
        78442P106
        
          
        
        3391800.00000000
        NS
        USD
        60306204.00000000
        1.480382337843
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        MFS Institutional Money Market Portfolio
        5L2W638H85N8T1136O07
        MFS Institutional Money Market Portfolio
        55291X109
        
          
        
        34737977.14200000
        NS
        USD
        34737977.14000000
        0.852739592272
        Long
        STIV
        RF
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Envista Holdings Corp
        549300BX623VURJZ5269
        Envista Holdings Corp
        29415F104
        
          
        
        673789.00000000
        NS
        USD
        26143013.20000000
        0.641752463797
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Cathay General Bancorp
        549300K1SLJ8C97H5L68
        Cathay General Bancorp
        149150104
        
          
        
        1587023.00000000
        NS
        USD
        66512133.93000000
        1.632724028232
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        BrightView Holdings Inc
        549300F8QN8YHVI7L866
        BrightView Holdings Inc
        10948C107
        
          
        
        729910.00000000
        NS
        USD
        9926776.00000000
        0.243680133840
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        TriMas Corp
        75G1WUQ8QK4P5MZOYD78
        TriMas Corp
        896215209
        
          
        
        1299202.00000000
        NS
        USD
        43029570.24000000
        1.056279645595
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Sandy Spring Bancorp Inc
        N/A
        Sandy Spring Bancorp Inc
        800363103
        
          
        
        588689.00000000
        NS
        USD
        27627174.77000000
        0.678185308662
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        nLight Inc
        N/A
        nLight Inc
        65487K100
        
          
        
        464152.00000000
        NS
        USD
        11552743.28000000
        0.283593991512
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        HireRight Holdings Corp
        N/A
        HireRight Holdings Corp
        433537107
        
          
        
        1122851.00000000
        NS
        USD
        20840114.56000000
        0.511578170518
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        ONE Gas Inc
        549300HXDWI0LATTX840
        ONE Gas Inc
        68235P108
        
          
        
        463635.00000000
        NS
        USD
        30062093.40000000
        0.737957111476
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Umpqua Holdings Corp
        5299002ENJ7CY215BW86
        Umpqua Holdings Corp
        904214103
        
          
        
        3266497.00000000
        NS
        USD
        62259432.82000000
        1.528329733884
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Industrial Logistics Properties Trust
        5493004XH9PJW009HR47
        Industrial Logistics Properties Trust
        456237106
        
          
        
        1696633.00000000
        NS
        USD
        37597387.28000000
        0.922931711609
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        National Storage Affiliates Trust
        N/A
        National Storage Affiliates Trust
        637870106
        
          
        
        503063.00000000
        NS
        USD
        30878006.94000000
        0.757985962800
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Devon Energy Corp
        54930042348RKR3ZPN35
        Devon Energy Corp
        25179M103
        
          
        
        801971.00000000
        NS
        USD
        33730900.26000000
        0.828018108791
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        LKQ Corp
        DS830JTTZQN6GK0I2E41
        LKQ Corp
        501889208
        
          
        
        1219663.00000000
        NS
        USD
        68179161.70000000
        1.673645829037
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Magnolia Oil & Gas Corp
        N/A
        Magnolia Oil & Gas Corp
        559663109
        
          
        
        1803851.00000000
        NS
        USD
        34219053.47000000
        0.840001177569
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        ACI Worldwide Inc
        5493003BPVMZUJ6F5C02
        ACI Worldwide Inc
        004498101
        
          
        
        695766.00000000
        NS
        USD
        20274621.24000000
        0.497696575134
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Texas Capital Bancshares Inc
        549300466Q2SXRX0YM48
        Texas Capital Bancshares Inc
        88224Q107
        
          
        
        396863.00000000
        NS
        USD
        22351324.16000000
        0.548674983984
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Lexington Realty Trust
        549300S4MH2ICXDBFV43
        Lexington Realty Trust
        529043101
        
          
        
        2906068.00000000
        NS
        USD
        43736323.40000000
        1.073628853899
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Triton International Ltd
        N/A
        Triton International Ltd
        000000000
        
          
        
        469158.00000000
        NS
        USD
        26258773.26000000
        0.644594114190
        Long
        EC
        CORP
        BM
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Brookline Bancorp Inc
        N/A
        Brookline Bancorp Inc
        11373M107
        
          
        
        2464546.00000000
        NS
        USD
        38027944.78000000
        0.933500934610
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        CACI International Inc
        SYRPI2D1O9WRTS2WX210
        CACI International Inc
        127190304
        
          
        
        183152.00000000
        NS
        USD
        47515123.36000000
        1.166389935645
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        PVH Corp
        123WALMHY1GZXG2YDL90
        PVH Corp
        693656100
        
          
        
        380751.00000000
        NS
        USD
        40656591.78000000
        0.998028335327
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Berry Global Group Inc
        549300G6KKUMMXM8NH73
        Berry Global Group Inc
        08579W103
        
          
        
        1062742.00000000
        NS
        USD
        73382335.10000000
        1.801372090867
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Encore Capital Group Inc
        5493000UVC6H49CIH830
        Encore Capital Group Inc
        292554102
        
          
        
        878737.00000000
        NS
        USD
        51265516.58000000
        1.258453695501
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        STAG Industrial Inc
        549300QWYX2W6FASVQ07
        STAG Industrial Inc
        85254J102
        
          
        
        776172.00000000
        NS
        USD
        33825575.76000000
        0.830342180424
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Univar Solutions Inc
        549300VSXHFQVR770L55
        Univar Solutions Inc
        91336L107
        
          
        
        1241803.00000000
        NS
        USD
        32175115.73000000
        0.789827080556
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        South Jersey Industries Inc
        549300DJYWYT5VXLFA46
        South Jersey Industries Inc
        838518108
        
          
        
        1375891.00000000
        NS
        USD
        32333438.50000000
        0.793713550220
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Enerpac Tool Group Corp
        IZW37BPZKUJE1QXGB081
        Enerpac Tool Group Corp
        292765104
        
          
        
        549297.00000000
        NS
        USD
        11595659.67000000
        0.284647492836
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Visteon Corp
        549300MOVLYHRW4GGW78
        Visteon Corp
        92839U206
        
          
        
        325328.00000000
        NS
        USD
        34458741.76000000
        0.845884988645
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Urban Outfitters Inc
        549300N3DUFR5U6NRN38
        Urban Outfitters Inc
        917047102
        
          
        
        1431594.00000000
        NS
        USD
        45338581.98000000
        1.112960716049
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        CNX Resources Corp
        549300JK3KH8PWM3B226
        CNX Resources Corp
        12653C108
        
          
        
        1852742.00000000
        NS
        USD
        25271400.88000000
        0.620356332083
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Wyndham Hotels & Resorts Inc
        549300FE3MQ4RVXXC673
        Wyndham Hotels & Resorts Inc
        98311A105
        
          
        
        356628.00000000
        NS
        USD
        28344793.44000000
        0.695801240920
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Bank of Hawaii Corp
        5493006Q8BQ8AD8M2U33
        Bank of Hawaii Corp
        062540109
        
          
        
        518437.00000000
        NS
        USD
        41360903.86000000
        1.015317620581
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Softchoice Corp
        549300UR1N7ROOB6A660
        Softchoice Corp
        83405M108
        
          
        
        1841270.00000000
        NS
        
        34246800.42000000
        0.840682303091
        Long
        EC
        CORP
        CA
        N
        
        1
        
          N
          N
          
        
      
      
        Element Solutions Inc
        549300FLGN6P5CU20J91
        Element Solutions Inc
        28618M106
        
          
        
        2773741.00000000
        NS
        USD
        63435456.67000000
        1.557198487361
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Hanover Insurance Group Inc/The
        JJYR6MFKFF6CF8DBZ078
        Hanover Insurance Group Inc/The
        410867105
        
          
        
        282952.00000000
        NS
        USD
        34449406.00000000
        0.845655816632
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Element Fleet Management Corp
        5493000PGBS1C22ELQ16
        Element Fleet Management Corp
        286181201
        
          
        
        3923687.00000000
        NS
        
        37840873.49000000
        0.928908753122
        Long
        EC
        CORP
        CA
        N
        
        1
        
          N
          N
          N
        
      
    
    
      
    
    
      2021-12-23
      MFS SERIES TRUST XIII
      Kasey Phillips
      Kasey Phillips
      Assistant Treasurer
    
  
  XXXX




Quarterly Report
November 30, 2021
MFS®  New Discovery    
Value Fund
NDV-Q3

Portfolio of Investments
11/30/21 (unaudited)
The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes.
Issuer     Shares/Par Value ($)
Common Stocks – 99.0%
Aerospace & Defense – 2.5%  
CACI International, Inc., “A” (a)   183,152 $47,515,123
KBR, Inc.   1,245,460 54,800,240
        $102,315,363
Apparel Manufacturers – 2.5%  
PVH Corp.   380,751 $40,656,592
Skechers USA, Inc., “A” (a)   1,382,740 62,112,681
        $102,769,273
Automotive – 4.0%  
LKQ Corp.   1,219,663 $68,179,162
Methode Electronics, Inc.   1,020,169 45,366,915
Stoneridge, Inc. (a)   610,472 13,326,604
Visteon Corp. (a)   325,328 34,458,742
        $161,331,423
Business Services – 1.6%  
HireRight Holdings Corp. (a)   1,122,851 $20,840,114
Paya, Inc. (a)   4,117,836 26,518,864
WNS (Holdings) Ltd., ADR (a)   217,541 18,288,672
        $65,647,650
Chemicals – 1.6%  
Element Solutions, Inc.   2,773,741 $63,435,457
Computer Software – 0.9%  
8x8, Inc. (a)   835,447 $18,003,883
ACI Worldwide, Inc. (a)   695,766 20,274,621
        $38,278,504
Computer Software - Systems – 1.8%  
Softchoice Corp. (l)   1,841,270 $34,246,800
Verint Systems, Inc. (a)   813,000 38,690,670
        $72,937,470
Construction – 1.8%  
Armstrong World Industries, Inc.   183,969 $19,495,195
GMS, Inc. (a)   347,466 19,412,925
Toll Brothers, Inc.   544,161 34,537,899
        $73,446,019
Consumer Products – 2.4%  
Energizer Holdings, Inc.   616,119 $22,913,465
Newell Brands, Inc.   1,161,368 24,934,571
Prestige Consumer Healthcare, Inc. (a)   864,787 48,384,833
        $96,232,869
Consumer Services – 1.1%  
BrightView Holdings, Inc. (a)   729,910 $9,926,776
Grand Canyon Education, Inc. (a)   393,781 28,537,309
Regis Corp. (a)(l)   1,859,742 5,058,498
        $43,522,583
1

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Common Stocks – continued
Containers – 6.1%  
Ardagh Metal Packaging S.A. (a)   3,008,951 $28,133,692
Berry Global, Inc. (a)   1,062,742 73,382,335
Graphic Packaging Holding Co.   3,434,404 67,795,135
Owens Corning   238,633 20,245,624
Pactiv Evergreen, Inc.   2,133,887 26,481,538
Silgan Holdings, Inc.   790,395 32,777,680
        $248,816,004
Electrical Equipment – 2.9%  
nVent Electric PLC   1,277,669 $44,501,211
TriMas Corp.   1,299,202 43,029,570
WESCO International, Inc. (a)   261,029 32,401,530
        $119,932,311
Electronics – 2.9%  
CMC Materials, Inc.   219,407 $29,137,250
Cohu, Inc. (a)   861,939 28,418,129
nLIGHT, Inc. (a)   464,152 11,552,743
Plexus Corp. (a)   597,309 50,257,579
        $119,365,701
Energy - Independent – 3.3%  
CNX Resources Corp. (a)   1,852,742 $25,271,401
Devon Energy Corp.   801,971 33,730,900
Magnolia Oil & Gas Corp., “A”   1,803,851 34,219,054
Viper Energy Partners LP   1,874,498 40,414,177
        $133,635,532
Engineering - Construction – 0.9%  
APi Group, Inc. (a)   1,574,478 $36,701,082
Food & Beverages – 2.1%  
Hostess Brands, Inc. (a)   2,490,648 $42,316,110
Nomad Foods Ltd. (a)   1,880,408 44,922,947
        $87,239,057
Furniture & Appliances – 0.6%  
IMAX Corp. (a)   1,486,312 $24,509,285
Gaming & Lodging – 2.1%  
International Game Technology PLC   2,110,485 $57,025,305
Wyndham Hotels & Resorts, Inc.   356,628 28,344,793
        $85,370,098
Insurance – 3.6%  
CNO Financial Group, Inc.   1,975,999 $44,776,137
Everest Re Group Ltd.   134,091 34,378,251
Hanover Insurance Group, Inc.   282,952 34,449,406
Selective Insurance Group, Inc.   443,533 33,504,483
        $147,108,277
Leisure & Toys – 1.0%  
Brunswick Corp.   273,572 $25,691,146
Funko, Inc., “A” (a)   922,994 15,081,722
        $40,772,868
2

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Common Stocks – continued
Machinery & Tools – 1.3%  
Enerpac Tool Group Corp.   549,297 $11,595,660
Regal Rexnord Corp.   264,375 41,797,687
        $53,393,347
Medical & Health Technology & Services – 3.4%  
ICON PLC (a)   125,262 $33,879,613
Premier, Inc., “A”   1,293,027 47,932,511
Syneos Health, Inc. (a)   574,780 55,845,625
        $137,657,749
Medical Equipment – 1.3%  
Agiliti Health, Inc. (a)   1,324,717 $27,898,540
Envista Holdings Corp. (a)   673,789 26,143,013
        $54,041,553
Metals & Mining – 1.1%  
Arconic Corp. (a)   1,082,991 $28,937,519
Kaiser Aluminum Corp.   183,033 16,332,035
        $45,269,554
Natural Gas - Distribution – 2.5%  
New Jersey Resources Corp.   1,087,961 $40,015,206
ONE Gas, Inc.   463,635 30,062,093
South Jersey Industries, Inc.   1,375,891 32,333,439
        $102,410,738
Natural Gas - Pipeline – 1.0%  
Plains GP Holdings LP   4,226,687 $42,266,870
Oil Services – 1.4%  
ChampionX Corp. (a)   2,176,763 $44,427,733
Expro Group Holdings N.V. (a)   999,520 14,003,275
        $58,431,008
Other Banks & Diversified Financials – 21.2%  
Air Lease Corp.   665,831 $27,026,080
Bank of Hawaii Corp.   518,437 41,360,904
Brookline Bancorp, Inc.   2,464,546 38,027,945
Cathay General Bancorp, Inc.   1,458,007 61,105,073
East West Bancorp, Inc.   509,436 39,226,572
Element Fleet Management Corp.   3,923,687 37,840,873
Encore Capital Group, Inc. (a)   878,737 51,265,517
First Hawaiian, Inc.   1,687,073 44,285,666
First Interstate BancSystem, Inc.   1,071,485 43,716,588
Hanmi Financial Corp.   1,427,585 32,077,835
Lakeland Financial Corp.   392,509 27,718,986
Prosperity Bancshares, Inc.   776,693 55,362,677
Sandy Spring Bancorp, Inc.   588,689 27,627,175
SLM Corp.   3,391,800 60,306,204
Texas Capital Bancshares, Inc. (a)   396,863 22,351,324
Textainer Group Holdings Ltd.   772,295 25,230,878
Triton International Ltd. of Bermuda   469,158 26,258,773
UMB Financial Corp.   559,949 56,319,670
Umpqua Holdings Corp.   3,266,497 62,259,433
Wintrust Financial Corp.   458,037 40,091,979
Zions Bancorp NA   716,654 45,206,534
        $864,666,686
3

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Common Stocks – continued
Pharmaceuticals – 0.5%  
Organon & Co.   633,298 $18,511,301
Pollution Control – 0.5%  
U.S. Ecology, Inc. (a)   556,678 $18,966,019
Real Estate – 9.0%  
Brixmor Property Group, Inc., REIT   815,789 $18,551,042
Broadstone Net Lease, Inc.   1,557,162 38,929,050
Douglas Emmett, Inc., REIT   515,553 16,894,672
Empire State Realty Trust, REIT, “A”   3,349,794 30,449,628
Industrial Logistics Properties Trust, REIT   1,696,633 37,597,387
Lexington Realty Trust, REIT   2,906,068 43,736,323
Life Storage, Inc., REIT   256,216 33,856,382
National Storage Affiliates Trust, REIT   503,063 30,878,007
Phillips Edison & Co., REIT (h)   1,101,859 34,565,317
STAG Industrial, Inc., REIT   776,172 33,825,576
Two Harbors Investment Corp., REIT   7,822,333 45,995,318
        $365,278,702
Restaurants – 0.7%  
Jack in the Box, Inc.   349,339 $28,855,401
Specialty Chemicals – 3.8%  
Avient Corp.   969,735 $53,345,122
Axalta Coating Systems Ltd. (a)   893,169 27,080,884
Diversey Holdings Ltd. (a)   3,180,077 41,913,415
Univar Solutions, Inc. (a)   1,241,803 32,175,116
        $154,514,537
Specialty Stores – 2.2%  
Urban Outfitters, Inc. (a)   1,431,594 $45,338,582
Zumiez, Inc. (a)   977,849 44,746,370
        $90,084,952
Trucking – 0.7%  
Schneider National, Inc.   1,126,556 $27,713,278
Utilities - Electric Power – 2.7%  
Black Hills Corp.   850,214 $54,515,722
Portland General Electric Co.   1,123,273 54,669,697
        $109,185,419
Total Common Stocks   $4,034,613,940
Investment Companies (h) – 0.8%
Money Market Funds – 0.8%  
MFS Institutional Money Market Portfolio, 0.05% (v)     34,739,270 $34,739,270
Collateral for Securities Loaned – 0.0%
State Street Navigator Securities Lending Government Money Market Portfolio, 0.03% (j)     760,642 $760,642
 
Other Assets, Less Liabilities – 0.2%   6,853,962
Net Assets – 100.0% $4,076,967,814
(a) Non-income producing security.      
(h) An affiliated issuer, which may be considered one in which the fund owns 5% or more of the outstanding voting securities, or a company which is under common control. At period end, the aggregate values of the fund's investments in affiliated issuers and in unaffiliated issuers were $69,304,587 and $4,000,809,265, respectively.      
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Portfolio of Investments (unaudited) – continued
(j) The rate quoted is the annualized seven-day yield of the fund at period end.      
(l) A portion of this security is on loan. See Note 2 for additional information.      
(v) Affiliated issuer that is available only to investment companies managed by MFS. The rate quoted for the MFS Institutional Money Market Portfolio is the annualized seven-day yield of the fund at period end.      
The following abbreviations are used in this report and are defined:
ADR American Depositary Receipt
REIT Real Estate Investment Trust
See attached supplemental information. For more information see notes to financial statements as disclosed in the most recent semiannual or annual report.
5

Supplemental Information
11/30/21 (unaudited)
The fund is an investment company and accordingly follows the investment company accounting and reporting guidance of the Financial Accounting Standards Board (FASB) Accounting Standards Codification Topic 946 Financial Services - Investment Companies.
(1) Investment Valuations
Equity securities, including restricted equity securities, are generally valued at the last sale or official closing price on their primary market or exchange as provided by a third-party pricing service. Equity securities, for which there were no sales reported that day, are generally valued at the last quoted daily bid quotation on their primary market or exchange as provided by a third-party pricing service. Short-term instruments with a maturity at issuance of 60 days or less may be valued at amortized cost, which approximates market value. Open-end investment companies are generally valued at net asset value per share. Securities and other assets generally valued on the basis of information from a third-party pricing service may also be valued at a broker/dealer bid quotation. In determining values, third-party pricing services can utilize both transaction data and market information such as yield, quality, coupon rate, maturity, type of issue, trading characteristics, and other market data. The values of foreign securities and other assets and liabilities expressed in foreign currencies are converted to U.S. dollars using the mean of bid and asked prices for rates provided by a third-party pricing service.
The Board of Trustees has delegated primary responsibility for determining or causing to be determined the value of the fund’s investments (including any fair valuation) to the adviser pursuant to valuation policies and procedures approved by the Board. If the adviser determines that reliable market quotations are not readily available, investments are valued at fair value as determined in good faith by the adviser in accordance with such procedures under the oversight of the Board of Trustees. Under the fund’s valuation policies and procedures, market quotations are not considered to be readily available for most types of debt instruments and floating rate loans and many types of derivatives. These investments are generally valued at fair value based on information from third-party pricing services. In addition, investments may be valued at fair value if the adviser determines that an investment’s value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (such as foreign exchange or market) and prior to the determination of the fund’s net asset value, or after the halt of trading of a specific security where trading does not resume prior to the close of the exchange or market on which the security is principally traded. Events that occur after foreign markets close (such as developments in foreign markets and significant movements in the U.S. markets) and prior to the determination of the fund’s net asset value may be deemed to have a material effect on the value of securities traded in foreign markets. Accordingly, the fund’s foreign equity securities may often be valued at fair value. The adviser generally relies on third-party pricing services or other information (such as the correlation with price movements of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading and other market data) to assist in determining whether to fair value and at what value to fair value an investment. The value of an investment for purposes of calculating the fund’s net asset value can differ depending on the source and method used to determine value. When fair valuation is used, the value of an investment used to determine the fund’s net asset value may differ from quoted or published prices for the same investment. There can be no assurance that the fund could obtain the fair value assigned to an investment if it were to sell the investment at the same time at which the fund determines its net asset value per share.
Various inputs are used in determining the value of the fund's assets or liabilities. These inputs are categorized into three broad levels. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment's level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The fund's assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the investment. Level 1 includes unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 includes other significant observable market-based inputs (including quoted prices for similar securities, interest rates, prepayment speed, and credit risk). Level 3 includes unobservable inputs, which may include the adviser's own assumptions in determining the fair value of investments. The following is a summary of the levels used as of November 30, 2021 in valuing the fund's assets and liabilities:
Financial Instruments Level 1 Level 2 Level 3 Total
Equity Securities $4,034,613,940 $— $— $4,034,613,940
Mutual Funds 35,499,912 35,499,912
Total $4,070,113,852 $— $— $4,070,113,852
For further information regarding security characteristics, see the Portfolio of Investments.
(2) Securities Lending Collateral
At November 30, 2021, the value of securities loaned was $2,926,859. These loans were collateralized by cash of $760,642 and U.S. Treasury Obligations (held by the lending agent) of $2,331,220.
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Supplemental Information (unaudited) – continued
(3) Investments in Affiliated Issuers
An affiliated issuer may be considered one in which the fund owns 5% or more of the outstanding voting securities, or a company which is under common control. For the purposes of this report, the following were affiliated issuers:
Affiliated Issuers Beginning
Value
Purchases Sales
Proceeds
Realized
Gain
(Loss)
Change in
Unrealized
Appreciation or
Depreciation
Ending
Value
MFS Institutional Money Market Portfolio $51,206,243 $548,353,045 $564,820,018 $— $— $34,739,270
Phillips Edison & Co., REIT 31,423,275 511,472 21,895 3,631,619 34,565,317
Regis Corp. * 21,725,186 396,570 112,698 (430,508) (16,520,052) $—
  $72,931,429 $580,172,890 $565,444,188 $(408,613) $(12,888,433) $69,304,587
Affiliated Issuers Dividend
Income
Capital Gain
Distributions
MFS Institutional Money Market Portfolio $9,487 $—
Phillips Edison & Co., REIT 283,629
Regis Corp. *
  $293,116 $—
* Held at period end. No longer considered an affiliated issuer.
(4) Impacts of COVID-19
The pandemic related to the global spread of novel coronavirus disease (COVID-19), which was first detected in December 2019, has resulted in significant disruptions to global business activity and the global economy, as well as the economies of individual countries, the financial performance of individual companies and sectors, and the securities and commodities markets in general. Multiple surges in cases globally, the availability and widespread adoption of vaccines, and the emergence of variant strains of the virus continue to create uncertainty as to the future and long-term impacts resulting from the pandemic including impacts to the prices and liquidity of the fund's investments and the fund's performance.
7