Close

Form NPORT-P MFS SERIES TRUST I For: May 31

July 26, 2021 9:46 AM EDT

  
    NPORT-P
    false
    
      
      
        
          0000798244
          XXXXXXXX
        
      
      
      
      
        S000000769
        C000002270
        C000002265
        C000002268
        C000002259
        C000002262
        C000002264
        C000033014
        C000002261
        C000002266
        C000002263
        C000002260
        C000002271
      
      
      
    
  
  
    
      MFS SERIES TRUST I
      811-04777
      0000798244
      549300QRB5FQ35HH3533
      111 HUNTINGTON AVENUE
      BOSTON
      
      02199
      617-954-5000
      MFS Value Fund
      S000000769
      HV6C0RMURVKFUQ3UTB42
      2021-08-31
      2021-05-31
      N
    
    
      63453818475.77
      36671511.50
      63417146964.27
      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
      5111311.60000000
      N
      
        
          
          
          
          
          
          
          
          
          
          
          
          
        
        
        
        
      
      
      
      
      
      
    
    
      
        Honeywell International Inc
        ISRPG12PN4EIEOEMW547
        Honeywell International Inc
        438516106
        
          
        
        7265036.00000000
        NS
        USD
        1677569462.76000000
        2.645293178681
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        BlackRock Inc
        549300LRIF3NWCU26A80
        BlackRock Inc
        09247X101
        
          
        
        1098700.00000000
        NS
        USD
        963603848.00000000
        1.519468935653
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Accenture PLC
        N/A
        Accenture PLC
        000000000
        
          
        
        5528524.00000000
        NS
        USD
        1559928331.84000000
        2.459789515158
        Long
        EC
        CORP
        IE
        
        N
        
        1
        
          N
          N
          N
        
      
      
        American Electric Power Co Inc
        1B4S6S7G0TW5EE83BO58
        American Electric Power Co Inc
        025537101
        
          
        
        5182839.00000000
        NS
        USD
        445724154.00000000
        0.702844854012
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Progressive Corp/The
        529900TACNVLY9DCR586
        Progressive Corp/The
        743315103
        
          
        
        8275010.00000000
        NS
        USD
        819887990.80000000
        1.292849063774
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Dominion Energy Inc
        ILUL7B6Z54MRYCF6H308
        Dominion Energy Inc
        25746U109
        
          
        
        11788794.00000000
        NS
        USD
        897598775.16000000
        1.415388137321
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Union Pacific Corp
        549300LMMRSZZCZ8CL11
        Union Pacific Corp
        907818108
        
          
        
        4052431.00000000
        NS
        USD
        910702818.63000000
        1.436051387084
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Johnson & Johnson
        549300G0CFPGEF6X2043
        Johnson & Johnson
        478160104
        
          
        
        13342936.00000000
        NS
        USD
        2258291918.00000000
        3.561011534108
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Philip Morris International Inc
        HL3H1H2BGXWVG3BSWR90
        Philip Morris International Inc
        718172109
        
          
        
        3164047.00000000
        NS
        USD
        305109052.21000000
        0.481114441149
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Thermo Fisher Scientific Inc
        HCHV7422L5HDJZCRFL38
        Thermo Fisher Scientific Inc
        883556102
        
          
        
        2239406.00000000
        NS
        USD
        1051401117.00000000
        1.657912989356
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Masco Corp
        5GCSNMQXHEYA1JO8QN11
        Masco Corp
        574599106
        
          
        
        8036738.00000000
        NS
        USD
        484695668.78000000
        0.764297499938
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        EOG Resources Inc
        XWTZDRYZPBUHIQBKDB46
        EOG Resources Inc
        26875P101
        
          
        
        4533428.00000000
        NS
        USD
        364215605.52000000
        0.574317235881
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Citigroup Inc
        6SHGI4ZSSLCXXQSBB395
        Citigroup Inc
        172967424
        
          
        
        17976275.00000000
        NS
        USD
        1414912605.25000000
        2.231119930461
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Chubb Ltd
        E0JAN6VLUDI1HITHT809
        Chubb Ltd
        000000000
        
          
        
        7556110.00000000
        NS
        USD
        1284463138.90000000
        2.025419307531
        Long
        EC
        CORP
        CH
        
        N
        
        1
        
          N
          N
          N
        
      
      
        PNC Financial Services Group Inc/The
        CFGNEKW0P8842LEUIA51
        PNC Financial Services Group Inc/The
        693475105
        
          
        
        4266928.00000000
        NS
        USD
        830685543.04000000
        1.309875298407
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Xcel Energy Inc
        LGJNMI9GH8XIDG5RCM61
        Xcel Energy Inc
        98389B100
        
          
        
        4544843.00000000
        NS
        USD
        322138471.84000000
        0.507967461894
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Comcast Corp
        51M0QTTNCGUN7KFCFZ59
        Comcast Corp
        20030N101
        
          
        
        34887602.00000000
        NS
        USD
        2000455098.68000000
        3.154438814169
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        PPG Industries Inc
        549300BKPEP01R3V6C59
        PPG Industries Inc
        693506107
        
          
        
        6793344.00000000
        NS
        USD
        1220899783.68000000
        1.925188757494
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Marriott International Inc/MD
        225YDZ14ZO8E1TXUSU86
        Marriott International Inc/MD
        571903202
        
          
        
        1557666.00000000
        NS
        USD
        223649684.28000000
        0.352664373889
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Moody's Corp
        549300GCEDD8YCF5WU84
        Moody's Corp
        615369105
        
          
        
        1053318.00000000
        NS
        USD
        353230191.30000000
        0.556994769094
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Medtronic PLC
        549300GX3ZBSQWUXY261
        Medtronic PLC
        000000000
        
          
        
        12559225.00000000
        NS
        USD
        1589872292.75000000
        2.507006967131
        Long
        EC
        CORP
        IE
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Truist Financial Corp
        549300DRQQI75D2JP341
        Truist Financial Corp
        89832Q109
        
          
        
        8736766.00000000
        NS
        USD
        539757403.48000000
        0.851122179596
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Reckitt Benckiser Group PLC
        5493003JFSMOJG48V108
        Reckitt Benckiser Group PLC
        000000000
        
          
        
        3928162.00000000
        NS
        
        354993856.73000000
        0.559775823611
        Long
        EC
        CORP
        GB
        N
        
        1
        
          N
          N
          N
        
      
      
        PepsiCo Inc
        FJSUNZKFNQ5YPJ5OT455
        PepsiCo Inc
        713448108
        
          
        
        3183502.00000000
        NS
        USD
        470967285.88000000
        0.742649753930
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Texas Instruments Inc
        WDJNR2L6D8RWOEB8T652
        Texas Instruments Inc
        882508104
        
          
        
        8523009.00000000
        NS
        USD
        1617837568.38000000
        2.551104308258
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Southern Co/The
        549300FC3G3YU2FBZD92
        Southern Co/The
        842587107
        
          
        
        16156464.00000000
        NS
        USD
        1032721178.88000000
        1.628457331046
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Roche Holding AG
        549300U41AUUVOAAOB37
        Roche Holding AG
        000000000
        
          
        
        739619.00000000
        NS
        
        259503898.17000000
        0.409201470883
        Long
        EC
        CORP
        CH
        N
        
        1
        
          N
          N
          N
        
      
      
        Boston Scientific Corp
        Y6ZDD9FP4P8JSSJMW954
        Boston Scientific Corp
        101137107
        
          
        
        14370458.00000000
        NS
        USD
        611462987.90000000
        0.964191890001
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Archer-Daniels-Midland Co
        549300LO13MQ9HYSTR83
        Archer-Daniels-Midland Co
        039483102
        
          
        
        5520987.00000000
        NS
        USD
        367311265.11000000
        0.579198659499
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        J M Smucker Co/The
        5493000WDH6A0LHDJD55
        J M Smucker Co/The
        832696405
        
          
        
        1259154.00000000
        NS
        USD
        167832636.66000000
        0.264648671051
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        NXP Semiconductors NV
        724500M9BY5293JDF951
        NXP Semiconductors NV
        000000000
        
          
        
        2670486.00000000
        NS
        USD
        564594150.12000000
        0.890286266643
        Long
        EC
        CORP
        NL
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Fiserv Inc
        GI7UBEJLXYLGR2C7GV83
        Fiserv Inc
        337738108
        
          
        
        4938106.00000000
        NS
        USD
        568869811.20000000
        0.897028388111
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Lockheed Martin Corp
        DPRBOZP0K5RM2YE8UU08
        Lockheed Martin Corp
        539830109
        
          
        
        1476886.00000000
        NS
        USD
        564465829.20000000
        0.890083922441
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Lowe's Cos Inc
        WAFCR4OKGSC504WU3E95
        Lowe's Cos Inc
        548661107
        
          
        
        4709127.00000000
        NS
        USD
        917479213.41000000
        1.446736816979
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Trane Technologies PLC
        549300BURLR9SLYY2705
        Trane Technologies PLC
        000000000
        
          
        
        4124986.00000000
        NS
        USD
        768897390.40000000
        1.212443995364
        Long
        EC
        CORP
        IE
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Chevron Corp
        N/A
        Chevron Corp
        166764100
        
          
        
        3244061.00000000
        NS
        USD
        336701091.19000000
        0.530930682485
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Johnson Controls International plc
        549300XQ6S1GYKGBL205
        Johnson Controls International plc
        000000000
        
          
        
        13021923.00000000
        NS
        USD
        866478756.42000000
        1.366316206101
        Long
        EC
        CORP
        IE
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Cigna Corp
        549300VIWYMSIGT1U456
        Cigna Corp
        125523100
        
          
        
        5725900.00000000
        NS
        USD
        1482149215.00000000
        2.337142690816
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        DuPont de Nemours Inc
        5493004JF0SDFLM8GD76
        DuPont de Nemours Inc
        26614N102
        
          
        
        5125778.00000000
        NS
        USD
        433589561.02000000
        0.683710292524
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Marsh & McLennan Cos Inc
        549300XMP3KDCKJXIU47
        Marsh & McLennan Cos Inc
        571748102
        
          
        
        8693257.00000000
        NS
        USD
        1202712105.95000000
        1.896509325195
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Public Storage
        549300LMZF40TKJ6DM64
        Public Storage
        74460D109
        
          
        
        833539.00000000
        NS
        USD
        235458096.72000000
        0.371284594137
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Stanley Black & Decker Inc
        549300DJ09SMTO561131
        Stanley Black & Decker Inc
        854502101
        
          
        
        3642743.00000000
        NS
        USD
        789746682.40000000
        1.245320422321
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Nestle SA
        KY37LUS27QQX7BB93L28
        Nestle SA
        000000000
        
          
        
        8228697.00000000
        NS
        
        1016534531.01000000
        1.602933243879
        Long
        EC
        CORP
        CH
        N
        
        1
        
          N
          N
          N
        
      
      
        US Bancorp
        N1GZ7BBF3NP8GI976H15
        US Bancorp
        902973304
        
          
        
        13616984.00000000
        NS
        USD
        827640287.52000000
        1.305073354981
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Intel Corp
        KNX4USFCNGPY45LOCE31
        Intel Corp
        458140100
        
          
        
        9069539.00000000
        NS
        USD
        518052067.68000000
        0.816895890904
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Abbott Laboratories
        HQD377W2YR662HK5JX27
        Abbott Laboratories
        002824100
        
          
        
        8514872.00000000
        NS
        USD
        993259818.80000000
        1.566232267370
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        MFS Institutional Money Market Portfolio
        5L2W638H85N8T1136O07
        MFS Institutional Money Market Portfolio
        55291X109
        
          
        
        827402961.96000000
        NS
        USD
        827402961.96000000
        1.304699125657
        Long
        STIV
        RF
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Goldman Sachs Group Inc/The
        784F5XWPLTWKTBV3E584
        Goldman Sachs Group Inc/The
        38141G104
        
          
        
        2087946.00000000
        NS
        USD
        776757670.92000000
        1.224838561970
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Fidelity National Information Services Inc
        6WQI0GK1PRFVBA061U48
        Fidelity National Information Services Inc
        31620M106
        
          
        
        5037259.00000000
        NS
        USD
        750450845.82000000
        1.183356366130
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Sherwin-Williams Co/The
        Z15BMIOX8DDH0X2OBP21
        Sherwin-Williams Co/The
        824348106
        
          
        
        2695941.00000000
        NS
        USD
        764380151.73000000
        1.205320939714
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Analog Devices Inc
        GYVOE5EZ4GDAVTU4CQ61
        Analog Devices Inc
        032654105
        
          
        
        2853783.00000000
        NS
        USD
        469732681.80000000
        0.740702955408
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Illinois Tool Works Inc
        76NA4I14SZCFAYMNSV04
        Illinois Tool Works Inc
        452308109
        
          
        
        4694200.00000000
        NS
        USD
        1087927792.00000000
        1.715510463775
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Duke Energy Corp
        I1BZKREC126H0VB1BL91
        Duke Energy Corp
        26441C204
        
          
        
        13054233.00000000
        NS
        USD
        1308295231.26000000
        2.062999194834
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Pfizer Inc
        765LHXWGK1KXCLTFYQ30
        Pfizer Inc
        717081103
        
          
        
        24340052.00000000
        NS
        USD
        942690213.96000000
        1.486491050269
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Verizon Communications Inc
        2S72QS2UO2OESLG6Y829
        Verizon Communications Inc
        92343V104
        
          
        
        3049365.00000000
        NS
        USD
        172258628.85000000
        0.271627843723
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Raytheon Technologies Corp
        I07WOS4YJ0N7YRFE7309
        Raytheon Technologies Corp
        75513E101
        
          
        
        5042406.00000000
        NS
        USD
        447311836.26000000
        0.705348407603
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Aon PLC
        635400FALWQYX5E6QC64
        Aon PLC
        000000000
        
          
        
        5938266.00000000
        NS
        USD
        1504578456.42000000
        2.372510477754
        Long
        EC
        CORP
        IE
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Canadian National Railway Co
        3SU7BEP7TH9YEQOZCS77
        Canadian National Railway Co
        136375102
        
          
        
        3224776.00000000
        NS
        USD
        363013034.32000000
        0.572420948745
        Long
        EC
        CORP
        CA
        N
        
        1
        
          N
          N
          N
        
      
      
        International Flavors & Fragrances Inc
        BZLRL03D3GPGMOGFO832
        International Flavors & Fragrances Inc
        459506101
        
          
        
        979034.00000000
        NS
        USD
        138699746.78000000
        0.218710165025
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Morgan Stanley
        IGJSJL3JD5P30I6NJZ34
        Morgan Stanley
        617446448
        
          
        
        11499922.00000000
        NS
        USD
        1045917905.90000000
        1.649266729847
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Pioneer Natural Resources Co
        FY8JBF7CCL2VE4F1B628
        Pioneer Natural Resources Co
        723787107
        
          
        
        1913752.00000000
        NS
        USD
        291253916.88000000
        0.459266824229
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Diageo PLC
        213800ZVIELEA55JMJ32
        Diageo PLC
        000000000
        
          
        
        19540269.00000000
        NS
        
        943948894.64000000
        1.488475814233
        Long
        EC
        CORP
        GB
        N
        
        1
        
          N
          N
          N
        
      
      
        Otis Worldwide Corp
        549300ZLBKR8VSU25153
        Otis Worldwide Corp
        68902V107
        
          
        
        2521203.00000000
        NS
        USD
        197485830.99000000
        0.311407624662
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Northrop Grumman Corp
        RIMU48P07456QXSO0R61
        Northrop Grumman Corp
        666807102
        
          
        
        3482478.00000000
        NS
        USD
        1274134225.86000000
        2.009132051585
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        McKesson Corp
        549300WZWOM80UCFSF54
        McKesson Corp
        58155Q103
        
          
        
        2897922.00000000
        NS
        USD
        557531213.58000000
        0.879149000339
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Danaher Corp
        S4BKK9OTCEWQ3YHPFM11
        Danaher Corp
        235851102
        
          
        
        3786489.00000000
        NS
        USD
        969871292.46000000
        1.529351821844
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Nasdaq Inc
        549300L8X1Q78ERXFD06
        Nasdaq Inc
        631103108
        
          
        
        5846579.00000000
        NS
        USD
        979068119.34000000
        1.543853935737
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Equifax Inc
        5493004MCF8JDC86VS77
        Equifax Inc
        294429105
        
          
        
        3130997.00000000
        NS
        USD
        735909534.88000000
        1.160426745931
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Kimberly-Clark Corp
        MP3J6QPYPGN75NVW2S34
        Kimberly-Clark Corp
        494368103
        
          
        
        3990315.00000000
        NS
        USD
        521254848.45000000
        0.821946229690
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Travelers Cos Inc/The
        549300Y650407RU8B149
        Travelers Cos Inc/The
        89417E109
        
          
        
        5198093.00000000
        NS
        USD
        830135452.10000000
        1.309007881681
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        T Rowe Price Group Inc
        549300SIV6FPS9Y7IH33
        T Rowe Price Group Inc
        74144T108
        
          
        
        1188786.00000000
        NS
        USD
        227474201.10000000
        0.358695103751
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Merck & Co Inc
        4YV9Y5M8S0BRK1RP0397
        Merck & Co Inc
        58933Y105
        
          
        
        10295954.00000000
        NS
        USD
        781359949.06000000
        1.232095713009
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Colgate-Palmolive Co
        YMEGZFW4SBUSS5BQXF88
        Colgate-Palmolive Co
        194162103
        
          
        
        5689044.00000000
        NS
        USD
        476628106.32000000
        0.751576078609
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        JPMorgan Chase & Co
        8I5DZWZKVSZI1NUHU748
        JPMorgan Chase & Co
        46625H100
        
          
        
        17774539.00000000
        NS
        USD
        2919290285.36000000
        4.603313811964
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        American Express Co
        R4PP93JZOLY261QX3811
        American Express Co
        025816109
        
          
        
        6176466.00000000
        NS
        USD
        989037500.58000000
        1.559574260155
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
      
        Eaton Corp PLC
        549300VDIGTMXUNT7H71
        Eaton Corp PLC
        000000000
        
          
        
        6725410.00000000
        NS
        USD
        976865802.50000000
        1.540381189097
        Long
        EC
        CORP
        IE
        
        N
        
        1
        
          N
          N
          N
        
      
      
        ConocoPhillips
        WPTL2Z3FIYTHSP5V2253
        ConocoPhillips
        20825C104
        
          
        
        8632007.00000000
        NS
        USD
        481148070.18000000
        0.758703431504
        Long
        EC
        CORP
        US
        N
        
        1
        
          N
          N
          N
        
      
    
    
      
    
    
      2021-06-29
      MFS SERIES TRUST I
      Kasey Phillips
      Kasey Phillips
      Assistant Treasurer
    
  
  XXXX



Quarterly Report
May 31, 2021
MFS®  Value Fund
EIF-Q3

Portfolio of Investments
5/31/21 (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 – 98.4%
Aerospace & Defense – 6.2%  
Honeywell International, Inc.   7,265,036 $1,677,569,463
Lockheed Martin Corp.   1,476,886 564,465,829
Northrop Grumman Corp.   3,482,478 1,274,134,226
Raytheon Technologies Corp.   5,042,406 447,311,836
        $3,963,481,354
Alcoholic Beverages – 1.5%  
Diageo PLC   19,540,269 $944,980,177
Brokerage & Asset Managers – 3.4%  
BlackRock, Inc.   1,098,700 $963,603,848
NASDAQ, Inc.   5,846,579 979,068,119
T. Rowe Price Group, Inc.   1,188,786 227,474,201
        $2,170,146,168
Business Services – 5.7%  
Accenture PLC, “A”   5,528,524 $1,559,928,332
Equifax, Inc.   3,130,997 735,909,535
Fidelity National Information Services, Inc.   5,037,259 750,450,846
Fiserv, Inc. (a)   4,938,106 568,869,811
        $3,615,158,524
Cable TV – 3.2%  
Comcast Corp., “A”   34,887,602 $2,000,455,099
Chemicals – 1.9%  
PPG Industries, Inc.   6,793,344 $1,220,899,784
Construction – 3.5%  
Masco Corp.   8,036,738 $484,695,669
Otis Worldwide Corp.   2,521,203 197,485,831
Sherwin-Williams Co.   2,695,941 764,380,152
Stanley Black & Decker, Inc.   3,642,743 789,746,682
        $2,236,308,334
Consumer Products – 2.3%  
Colgate-Palmolive Co.   5,689,044 $476,628,106
International Flavors & Fragrances, Inc.   979,034 138,699,747
Kimberly-Clark Corp.   3,990,315 521,254,849
Reckitt Benckiser Group PLC   3,928,162 355,381,694
        $1,491,964,396
Electrical Equipment – 1.4%  
Johnson Controls International PLC   13,021,923 $866,478,756
Electronics – 5.0%  
Analog Devices, Inc.   2,853,783 $469,732,682
Intel Corp.   9,069,539 518,052,068
NXP Semiconductors N.V.   2,670,486 564,594,150
Texas Instruments, Inc.   8,523,009 1,617,837,568
        $3,170,216,468
1

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Common Stocks – continued
Energy - Independent – 1.8%  
ConocoPhillips   8,632,007 $481,148,070
EOG Resources, Inc.   4,533,428 364,215,606
Pioneer Natural Resources Co.   1,913,752 291,253,917
        $1,136,617,593
Energy - Integrated – 0.5%  
Chevron Corp.   3,244,061 $336,701,091
Food & Beverages – 3.2%  
Archer Daniels Midland Co.   5,520,987 $367,311,265
J.M. Smucker Co.   1,259,154 167,832,637
Nestle S.A.   8,228,697 1,013,424,662
PepsiCo, Inc.   3,183,502 470,967,286
        $2,019,535,850
Gaming & Lodging – 0.4%  
Marriott International, Inc., “A” (a)   1,557,666 $223,649,684
Health Maintenance Organizations – 2.3%  
Cigna Corp.   5,725,900 $1,482,149,215
Insurance – 8.9%  
Aon PLC   5,938,266 $1,504,578,456
Chubb Ltd.   7,556,110 1,284,463,139
Marsh & McLennan Cos., Inc.   8,693,257 1,202,712,106
Progressive Corp.   8,275,010 819,887,991
Travelers Cos., Inc.   5,198,093 830,135,452
        $5,641,777,144
Machinery & Tools – 4.5%  
Eaton Corp. PLC   6,725,410 $976,865,803
Illinois Tool Works, Inc.   4,694,200 1,087,927,792
Trane Technologies PLC   4,124,986 768,897,390
        $2,833,690,985
Major Banks – 8.8%  
Goldman Sachs Group, Inc.   2,087,946 $776,757,671
JPMorgan Chase & Co.   17,774,539 2,919,290,285
Morgan Stanley   11,499,922 1,045,917,906
PNC Financial Services Group, Inc.   4,266,928 830,685,543
        $5,572,651,405
Medical & Health Technology & Services – 0.9%  
McKesson Corp.   2,897,922 $557,531,214
Medical Equipment – 8.2%  
Abbott Laboratories   8,514,872 $993,259,819
Boston Scientific Corp. (a)   14,370,458 611,462,988
Danaher Corp.   3,786,489 969,871,292
Medtronic PLC   12,559,225 1,589,872,293
Thermo Fisher Scientific, Inc.   2,239,406 1,051,401,117
        $5,215,867,509
Other Banks & Diversified Financials – 6.5%  
American Express Co.   6,176,466 $989,037,501
Citigroup, Inc.   17,976,275 1,414,912,605
Moody's Corp.   1,053,318 353,230,191
Truist Financial Corp.   8,736,766 539,757,403
2

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Common Stocks – continued
Other Banks & Diversified Financials – continued  
U.S. Bancorp   13,616,984 $827,640,288
        $4,124,577,988
Pharmaceuticals – 6.7%  
Johnson & Johnson   13,342,936 $2,258,291,918
Merck & Co., Inc.   10,295,954 781,359,949
Pfizer, Inc.   24,340,052 942,690,214
Roche Holding AG   739,619 257,305,291
        $4,239,647,372
Railroad & Shipping – 2.0%  
Canadian National Railway Co.   3,224,776 $363,013,034
Union Pacific Corp.   4,052,431 910,702,819
        $1,273,715,853
Real Estate – 0.4%  
Public Storage, Inc., REIT   833,539 $235,458,097
Specialty Chemicals – 0.7%  
DuPont de Nemours, Inc.   5,125,778 $433,589,561
Specialty Stores – 1.4%  
Lowe's Cos., Inc.   4,709,127 $917,479,213
Telephone Services – 0.3%  
Verizon Communications, Inc.   3,049,365 $172,258,629
Tobacco – 0.5%  
Philip Morris International, Inc.   3,164,047 $305,109,052
Utilities - Electric Power – 6.3%  
American Electric Power Co., Inc.   5,182,839 $445,724,154
Dominion Energy, Inc.   11,788,794 897,598,775
Duke Energy Corp.   13,054,233 1,308,295,231
Southern Co.   16,156,464 1,032,721,179
Xcel Energy, Inc.   4,544,843 322,138,472
        $4,006,477,811
Total Common Stocks   $62,408,574,326
Investment Companies (h) – 1.3%
Money Market Funds – 1.3%  
MFS Institutional Money Market Portfolio, 0.03% (v)     827,430,324 $827,430,324
 
Other Assets, Less Liabilities – 0.3%   193,413,226
Net Assets – 100.0% $63,429,417,876
(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 $827,430,324 and $62,408,574,326, respectively.      
(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:
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.
3

Supplemental Information
5/31/21 (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 May 31, 2021 in valuing the fund's assets or liabilities:
Financial Instruments Level 1 Level 2 Level 3 Total
Equity Securities $62,408,574,326 $— $— $62,408,574,326
Mutual Funds 827,430,324 827,430,324
Total $63,236,004,650 $— $— $63,236,004,650
For further information regarding security characteristics, see the Portfolio of Investments.
(2) 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 $688,394,733 $3,130,059,765 $2,991,024,174 $— $— $827,430,324
4

Supplemental Information (unaudited) – continued
Affiliated Issuers Dividend
Income
Capital Gain
Distributions
MFS Institutional Money Market Portfolio $330,714 $—
(3) 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.
5


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