0001752724-21-155043.txt : 20210726 0001752724-21-155043.hdr.sgml : 20210726 20210726094624 ACCESSION NUMBER: 0001752724-21-155043 CONFORMED SUBMISSION TYPE: NPORT-P PUBLIC DOCUMENT COUNT: 4 CONFORMED PERIOD OF REPORT: 20210531 FILED AS OF DATE: 20210726 PERIOD START: 20210831 FILER: COMPANY DATA: COMPANY CONFORMED NAME: MFS SERIES TRUST I CENTRAL INDEX KEY: 0000798244 IRS NUMBER: 000000000 STATE OF INCORPORATION: MA FISCAL YEAR END: 1130 FILING VALUES: FORM TYPE: NPORT-P SEC ACT: 1940 Act SEC FILE NUMBER: 811-04777 FILM NUMBER: 211112720 BUSINESS ADDRESS: STREET 1: 111 HUNTINGTON AVENUE STREET 2: 24TH FLOOR CITY: BOSTON STATE: MA ZIP: 02199 BUSINESS PHONE: 18006372929 MAIL ADDRESS: STREET 1: 111 HUNTINGTON AVENUE STREET 2: 24TH FLOOR CITY: BOSTON STATE: MA ZIP: 02199 FORMER COMPANY: FORMER CONFORMED NAME: MFS SERIES TRUST I /MA/ DATE OF NAME CHANGE: 19940427 FORMER COMPANY: FORMER CONFORMED NAME: MFS LIFETIME MANAGED SECTORS FUND DATE OF NAME CHANGE: 19930408 FORMER COMPANY: FORMER CONFORMED NAME: LIFETIME MANAGED SECTORS TRUST DATE OF NAME CHANGE: 19920703 0000798244 S000000768 MFS Technology Fund C000002249 A MTCAX C000002250 R4 MTCJX C000002251 B MTCBX C000002252 C MTCCX C000002253 I MTCIX C000002255 R1 MTCKX C000002257 R2 MTERX C000002258 R3 MTCHX C000124425 R6 MTCLX NPORT-P 1 primary_doc.xml NPORT-P false 0000798244 XXXXXXXX S000000768 C000002250 C000002252 C000002253 C000002257 C000002255 C000002249 C000124425 C000002251 C000002258 MFS SERIES TRUST I 811-04777 0000798244 549300QRB5FQ35HH3533 111 HUNTINGTON AVENUE BOSTON 02199 617-954-5000 MFS Technology Fund S000000768 RFHV6YCC4ZBRJX8V4134 2021-08-31 2021-05-31 N 2151349110.02 11049418.37 2140299691.65 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 57852.91000000 N NetEase Inc 5299004AF4DSJDB0PA32 NetEase Inc 64110W102 196449.00000000 NS USD 23167230.57000000 1.082429281300 Long EC CORP KY N 1 N N N EPAM Systems Inc 549300XCR4R530HJP604 EPAM Systems Inc 29414B104 46543.00000000 NS USD 22228936.80000000 1.038589917417 Long EC CORP US N 1 N N N salesforce.com Inc RCGZFPDMRW58VJ54VR07 salesforce.com Inc 79466L302 193337.00000000 NS USD 46033539.70000000 2.150798782039 Long EC CORP US N 1 N N N DoubleVerify Holdings Inc N/A DoubleVerify Holdings Inc 25862V105 258687.00000000 NS USD 9542963.43000000 0.445870429605 Long EC CORP US N 1 N N N Pinduoduo Inc 5493000573DS7005T657 Pinduoduo Inc 722304102 44031.00000000 NS USD 5498591.28000000 0.256907539698 Long EC CORP KY N 1 N N N Tradeweb Markets Inc N/A Tradeweb Markets Inc 892672106 135551.00000000 NS USD 11356462.78000000 0.530601523903 Long EC CORP US N 1 N N N Constellation Software Inc/Canada 549300B6PYHMCTDWQV29 Constellation Software Inc/Canada 000000000 13977.00000000 NS 20060792.81000000 0.937288964170 Long EC CORP CA N 1 N N N Uber Technologies Inc 549300B2FTG34FILDR98 Uber Technologies Inc 90353T100 482685.00000000 NS USD 24534878.55000000 1.146329116698 Long EC CORP US N 1 N N N Micron Technology Inc B3DXGBC8GAIYWI2Z0172 Micron Technology Inc 595112103 320551.00000000 NS USD 26971161.14000000 1.260158156599 Long EC CORP US N 1 N N N HubSpot Inc 529900BLNVEW0MVKJB37 HubSpot Inc 443573100 49465.00000000 NS USD 24949156.70000000 1.165685198074 Long EC CORP US N 1 N N N Sea Ltd 529900OM6JLLW44YKI15 Sea Ltd 81141R100 55146.00000000 NS USD 13965173.04000000 0.652486803342 Long EC CORP KY N 1 N N N Black Knight Inc 549300TUSNXS3BFFML48 Black Knight Inc 09215C105 171674.00000000 NS USD 12599154.86000000 0.588663116158 Long EC CORP US N 1 N N N FleetCor Technologies Inc 549300DG6RR0NQSFLN74 FleetCor Technologies Inc 339041105 57068.00000000 NS USD 15661741.92000000 0.731754622079 Long EC CORP US N 1 N N N Advanced Micro Devices Inc R2I72C950HOYXII45366 Advanced Micro Devices Inc 007903107 433305.00000000 NS USD 34699064.40000000 1.621224566604 Long EC CORP US N 1 N N N PayPal Holdings Inc 5493005X2GO78EFZ3E94 PayPal Holdings Inc 70450Y103 284388.00000000 NS USD 73946567.76000000 3.454963248767 Long EC CORP US N 1 N N N Alphabet Inc 5493006MHB84DD0ZWV18 Alphabet Inc 02079K305 52198.00000000 NS USD 123022856.30000000 5.747926646906 Long EC CORP US N 1 N N N Visa Inc 549300JZ4OKEHW3DPJ59 Visa Inc 92826C839 234226.00000000 NS USD 53239569.80000000 2.487482010472 Long EC CORP US N 1 N N N Farfetch Ltd 549300QFQ74Z0F96NS78 Farfetch Ltd 000000000 513936.00000000 NS USD 23810654.88000000 1.112491627826 Long EC CORP KY N 1 N N N Square Inc 549300OHIIUWSTIZME52 Square Inc 852234103 63207.00000000 NS USD 14064821.64000000 0.657142627963 Long EC CORP US N 1 N N N Microsoft Corp INR2EJN1ERAN0W5ZP974 Microsoft Corp 594918104 875998.00000000 NS USD 218719180.64000000 10.21909134937 Long EC CORP US N 1 N N N NVIDIA Corp 549300S4KLFTLO7GSQ80 NVIDIA Corp 67066G104 74074.00000000 NS USD 48131803.72000000 2.248834773362 Long EC CORP US N 1 N N N Adobe Inc FU4LY2G4933NH2E1CP29 Adobe Inc 00724F101 156529.00000000 NS USD 78981402.82000000 3.690202971487 Long EC CORP US N 1 N N N Take-Two Interactive Software Inc BOMSTHHJK882EWYX3334 Take-Two Interactive Software Inc 874054109 101135.00000000 NS USD 18766610.60000000 0.876821627981 Long EC CORP US N 1 N N N Lyft Inc 549300H7I5VN334XVZ52 Lyft Inc 55087P104 269006.00000000 NS USD 15357552.54000000 0.717542155424 Long EC CORP US N 1 N N N TransUnion 549300ZS772LUNUMRB03 TransUnion 89400J107 155189.00000000 NS USD 16605223.00000000 0.775836349684 Long EC CORP US N 1 N N N Paya Holdings Inc N/A Paya Holdings Inc 70434P103 1075446.00000000 NS USD 10668424.32000000 0.498454695929 Long EC CORP US N 1 N N N RingCentral Inc 549300C8EH0H1614VE84 RingCentral Inc 76680R206 94349.00000000 NS USD 24763782.03000000 1.157024043250 Long EC CORP US N 1 N N N ThredUp Inc N/A ThredUp Inc 88556E102 284495.00000000 NS USD 6711237.05000000 0.313565295373 Long EC CORP US N 1 N N N Guardant Health Inc 254900M8C3E5VC8BR186 Guardant Health Inc 40131M109 68505.00000000 NS USD 8502840.60000000 0.397273364714 Long EC CORP US N 1 N N N Eventbrite Inc 549300N6XBV2B1FAUF55 Eventbrite Inc 29975E109 421926.00000000 NS USD 8565097.80000000 0.400182172310 Long EC CORP US N 1 N N N Activision Blizzard Inc 549300TPQQDBP9GNOF40 Activision Blizzard Inc 00507V109 267426.00000000 NS USD 26007178.50000000 1.215118546316 Long EC CORP US N 1 N N N Marvell Technology Inc N/A Marvell Technology Inc 573874104 402072.00000000 NS USD 19420077.60000000 0.907353193375 Long EC CORP US N 1 N N N Bentley Systems Inc 549300WVEHPGE0Z56F71 Bentley Systems Inc 08265T208 65093.00000000 NS USD 3733734.48000000 0.174449143480 Long EC CORP US N 1 N N N Mastercard Inc AR5L2ODV9HN37376R084 Mastercard Inc 57636Q104 262573.00000000 NS USD 94678572.34000000 4.423612857085 Long EC CORP US N 1 N N N Zendesk Inc 549300SLI6BN94BKKO36 Zendesk Inc 98936J101 105978.00000000 NS USD 14482953.48000000 0.676678763095 Long EC CORP US N 1 N N N Procore Technologies Inc N/A Procore Technologies Inc 74275K108 33413.00000000 NS USD 2887551.46000000 0.134913417558 Long EC CORP US N 1 N N N Descartes Systems Group Inc/The 875500NEPA7JI5EOMN45 Descartes Systems Group Inc/The 000000000 208657.00000000 NS 12204547.51000000 0.570226102335 Long EC CORP CA N 1 N N N Topicus.com Inc N/A Topicus.com Inc 89072T102 68165.00000000 NS 4352674.23000000 0.203367511894 Long EC CORP CA N 1 N N N Clarivate PLC 549300WDHIIODXFO0R55 Clarivate PLC 000000000 672117.00000000 NS USD 20190394.68000000 0.943344278316 Long EC CORP JE N 1 N N N Match Group Inc 15OMOPB0A8K0EFUVD031 Match Group Inc 57667L107 125996.00000000 NS USD 18065306.48000000 0.844054996152 Long EC CORP US N 1 N N N MFS Institutional Money Market Portfolio 5L2W638H85N8T1136O07 MFS Institutional Money Market Portfolio 55291X109 20677307.38700000 NS USD 20677307.39000000 0.966094022751 Long STIV RF US N 1 N N N ServiceNow Inc 549300HJTQM36M0E1G39 ServiceNow Inc 81762P102 78226.00000000 NS USD 37069736.88000000 1.731988142811 Long EC CORP US N 1 N N N Flywire Corp 54930055DSV7NNY4VY66 Flywire Corp 302492103 132943.00000000 NS USD 4565262.62000000 0.213300157814 Long EC CORP US N 1 N N N Charles Schwab Corp/The 549300VSGCJ7E698NM85 Charles Schwab Corp/The 808513105 130998.00000000 NS USD 9674202.30000000 0.452002228367 Long EC CORP US N 1 N N N Qualtrics International Inc 549300NW34K5PVZGTN68 Qualtrics International Inc 747601201 135143.00000000 NS USD 4654324.92000000 0.217461364787 Long EC CORP US N 1 N N N Facebook Inc BQ4BKCS1HXDV9HN80Z93 Facebook Inc 30303M102 257216.00000000 NS USD 84554615.68000000 3.950597012646 Long EC CORP US N 1 N N N Bio-Techne Corp 54930073RLKQ51TILZ35 Bio-Techne Corp 09073M104 27252.00000000 NS USD 11277695.16000000 0.526921309384 Long EC CORP US N 1 N N N Endava PLC 213800JJ6CRPCWCQVZ25 Endava PLC 29260V105 235281.00000000 NS USD 24135124.98000000 1.127651658978 Long EC CORP GB N 1 N N N Autodesk Inc FRKKVKAIQEF3FCSTPG55 Autodesk Inc 052769106 95768.00000000 NS USD 27376240.48000000 1.279084447229 Long EC CORP US N 1 N N N WEX Inc T9M5IGROL1TL1G5OV478 WEX Inc 96208T104 77544.00000000 NS USD 15191645.04000000 0.709790554064 Long EC CORP US N 1 N N N ACV Auctions Inc N/A ACV Auctions Inc 00091G104 92720.00000000 NS USD 2403302.40000000 0.112288125320 Long EC CORP US N 1 N N N Skyworks Solutions Inc 549300WZ3ORQ2BVKBD96 Skyworks Solutions Inc 83088M102 83618.00000000 NS USD 14215060.00000000 0.664162129044 Long EC CORP US N 1 N N N Nuvei Corp N/A Nuvei Corp 67079A102 207606.00000000 NS USD 15051435.00000000 0.703239600450 Long EC CORP CA N 1 N N N Figs Inc N/A Figs Inc 30260D103 33464.00000000 NS USD 1142795.60000000 0.053394186078 Long EC CORP US N 1 N N N Lam Research Corp 549300I4GMO6D34U1T02 Lam Research Corp 512807108 55513.00000000 NS USD 36075123.05000000 1.685517368933 Long EC CORP US N 1 N N N KLA Corp 549300H0BF5JCG96TJ81 KLA Corp 482480100 93399.00000000 NS USD 29597209.11000000 1.382853495959 Long EC CORP US N 1 N N N Verisk Analytics Inc 549300I1YSWNIRKBWP67 Verisk Analytics Inc 92345Y106 32112.00000000 NS USD 5549916.96000000 0.259305600129 Long EC CORP US N 1 N N N Pinterest Inc N/A Pinterest Inc 72352L106 258618.00000000 NS USD 16887755.40000000 0.789036949633 Long EC CORP US N 1 N N N Twilio Inc 5493004W8TRGD63APX93 Twilio Inc 90138F102 32586.00000000 NS USD 10948896.00000000 0.511559014035 Long EC CORP US N 1 N N N Apple Inc HWUPKR0MPOU8FGXBT394 Apple Inc 037833100 347535.00000000 NS USD 43306336.35000000 2.023377217636 Long EC CORP US N 1 N N N Asana Inc N/A Asana Inc 04342Y104 361930.00000000 NS USD 13311785.40000000 0.621958945839 Long EC CORP US N 1 N N N Chewy Inc N/A Chewy Inc 16679L109 170960.00000000 NS USD 12586075.20000000 0.588052002675 Long EC CORP US N 1 N N N AppLovin Corp 549300LLVXMUAOL3SQ07 AppLovin Corp 03831W108 209887.00000000 NS USD 15596702.97000000 0.728715844367 Long EC CORP US N 1 N N N MercadoLibre Inc 549300DKPDN9M5S8GB14 MercadoLibre Inc 58733R102 9996.00000000 NS USD 13581265.32000000 0.634549702220 Long EC CORP US N 1 N N N Charter Communications Inc 0J0XRGZE3PBRFEZ7MV65 Charter Communications Inc 16119P108 3045.00000000 NS USD 2114843.85000000 0.098810641250 Long EC CORP US N 1 N N N Tencent Holdings Ltd 254900N4SLUMW4XUYY11 Tencent Holdings Ltd 000000000 333400.00000000 NS 25839799.51000000 1.207298193370 Long EC CORP KY N 1 N N N Rakus Co Ltd N/A Rakus Co Ltd 000000000 61700.00000000 NS 1147658.76000000 0.053621404725 Long EC CORP JP N 1 N N N Booking Holdings Inc FXM8FAOHMYDIPD38UZ17 Booking Holdings Inc 09857L108 32576.00000000 NS USD 76929852.80000000 3.594349571703 Long EC CORP US N 1 N N N DraftKings Inc 5493008P45UYYL683Z97 DraftKings Inc 26142R104 180460.00000000 NS USD 9013977.00000000 0.421154898781 Long EC CORP US N 1 N N N Global Payments Inc 549300NOMHGVQBX6S778 Global Payments Inc 37940X102 303418.00000000 NS USD 58775100.78000000 2.746115462675 Long EC CORP US N 1 N N N Wix.com Ltd 5493008P6N29Q1AG9464 Wix.com Ltd 000000000 55232.00000000 NS USD 14352587.52000000 0.670587748808 Long EC CORP IL N 1 N N N Amazon.com Inc ZXTILKJKG63JELOEG630 Amazon.com Inc 023135106 61860.00000000 NS USD 199379110.20000000 9.315476284832 Long EC CORP US N 1 N N N Q2 Holdings Inc 549300M9RKR9DZXWS696 Q2 Holdings Inc 74736L109 121059.00000000 NS USD 11492130.87000000 0.536940266582 Long EC CORP US N 1 N N N Ping Identity Holding Corp N/A Ping Identity Holding Corp 72341T103 202356.00000000 NS USD 4878803.16000000 0.227949533377 Long EC CORP US N 1 N N N Maravai LifeSciences Holdings Inc N/A Maravai LifeSciences Holdings Inc 56600D107 174764.00000000 NS USD 6560640.56000000 0.306529061588 Long EC CORP US N 1 N N N Atlassian Corp PLC 549300AGBII4MWBVJY22 Atlassian Corp PLC 000000000 64790.00000000 NS USD 15114211.20000000 0.706172656986 Long EC CORP GB N 1 N N N 2021-06-29 MFS SERIES TRUST I Kasey Phillips Kasey Phillips Assistant Treasurer XXXX GRAPHIC 2 img351723221.gif begin 644 img351723221.gif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htm
Quarterly Report
May 31, 2021
MFS®  Technology Fund
SCT-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 – 99.3%
Apparel Manufacturers – 0.0%  
FIGS, Inc. (a)   33,464 $1,142,796
Brokerage & Asset Managers – 1.0%  
Charles Schwab Corp.   130,998 $9,674,202
Tradeweb Markets, Inc.   135,551 11,356,463
        $21,030,665
Business Services – 11.2%  
Clarivate PLC (a)   672,117 $20,190,395
Endava PLC, ADR (a)   235,281 24,135,125
FleetCor Technologies, Inc. (a)   57,068 15,661,742
Global Payments, Inc.   303,418 58,775,107
Nuvei Corp. (a)   207,606 15,545,537
Paya, Inc. (a)   1,075,446 10,668,424
PayPal Holdings, Inc. (a)   284,388 73,946,568
Verisk Analytics, Inc., “A”   32,112 5,549,917
WEX, Inc. (a)   77,544 15,191,645
        $239,664,460
Cable TV – 0.1%  
Charter Communications, Inc., “A” (a)   3,045 $2,114,844
Computer Software – 24.3%  
Adobe Systems, Inc. (a)   156,529 $78,981,403
AppLovin Corp. (a)   209,887 15,596,703
Asana, Inc. (a)   361,930 13,311,785
Atlassian Corp. PLC, “A” (a)   64,790 15,114,211
Autodesk, Inc. (a)   95,768 27,376,241
Bentley Systems, Inc., “B”   65,093 3,733,734
Black Knight, Inc. (a)   171,674 12,599,155
DoubleVerify Holdings, Inc. (a)   258,687 9,542,963
Eventbrite, Inc. (a)   421,926 8,565,098
Flywire Corp. (a)   98,619 3,386,576
Microsoft Corp. (s)   875,998 218,719,181
Ping Identity Holding Corp. (a)   202,356 4,878,803
Procore Technologies, Inc. (a)   33,413 2,887,551
Qualtrics International, “A” (a)   135,143 4,654,325
RAKUS Co. Ltd.   61,700 1,141,695
RingCentral, Inc. (a)   94,349 24,763,782
salesforce.com, inc. (a)   193,337 46,033,540
Topicus.com, Inc. (a)   68,165 4,354,202
Twilio, Inc., “A” (a)   32,586 10,948,896
Zendesk, Inc. (a)   105,978 14,482,954
        $521,072,798
Computer Software - Systems – 10.1%  
Apple, Inc. (s)   347,535 $43,306,336
Constellation Software, Inc.   13,977 19,879,764
Descartes Systems Group, Inc. (a)   208,657 12,213,436
EPAM Systems, Inc. (a)   46,543 22,228,937
HubSpot, Inc. (a)   49,465 24,949,157
Q2 Holdings, Inc. (a)   121,059 11,492,131
ServiceNow, Inc. (a)   78,226 37,069,737
Square, Inc., “A” (a)   63,207 14,064,821
TransUnion   155,189 16,605,223
1

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Common Stocks – continued
Computer Software - Systems – continued  
Wix.com Ltd. (a)   55,232 $14,352,587
        $216,162,129
Consumer Services – 5.5%  
Booking Holdings, Inc. (a)   32,576 $76,929,853
Lyft, Inc. (a)   269,006 15,357,552
Uber Technologies, Inc. (a)   482,685 24,534,879
        $116,822,284
Electronics – 9.8%  
Advanced Micro Devices (a)   433,305 $34,699,064
KLA Corp.   93,399 29,597,209
Lam Research Corp.   55,513 36,075,123
Marvell Technology, Inc.   402,072 19,420,078
Micron Technology, Inc. (a)   320,551 26,971,161
NVIDIA Corp.   74,074 48,131,804
Skyworks Solutions, Inc.   83,618 14,215,060
        $209,109,499
Gaming & Lodging – 0.4%  
DraftKings, Inc. (a)   180,460 $9,013,977
Internet – 16.1%  
Alphabet, Inc., “A” (a)   52,198 $123,022,856
Facebook, Inc., “A” (a)   257,216 84,554,616
Farfetch Ltd., “A” (a)   513,936 23,810,655
Match Group, Inc. (a)   125,996 18,065,306
Mercadolibre, Inc. (a)   9,996 13,581,265
NetEase.com, Inc., ADR   196,449 23,167,231
Pinterest, Inc. (a)   258,618 16,887,755
Sea Ltd., ADR (a)   55,146 13,965,173
Tencent Holdings Ltd.   333,400 26,589,697
        $343,644,554
Leisure & Toys – 2.1%  
Activision Blizzard, Inc.   267,426 $26,007,178
Take-Two Interactive Software, Inc. (a)   101,135 18,766,611
        $44,773,789
Medical & Health Technology & Services – 0.4%  
Guardant Health, Inc. (a)   68,505 $8,502,841
Medical Equipment – 0.8%  
Bio-Techne Corp.   27,252 $11,277,695
Maravai Lifesciences Holdings, Inc., “A” (a)   174,764 6,560,641
        $17,838,336
Other Banks & Diversified Financials – 6.9%  
Mastercard, Inc., “A”   262,573 $94,678,572
Visa, Inc., “A”   234,226 53,239,570
        $147,918,142
Specialty Stores – 10.6%  
ACV Auctions, Inc. (a)   92,720 $2,403,303
Amazon.com, Inc. (a)(s)   61,860 199,379,110
Chewy, Inc., “A” (a)   170,960 12,586,075
Pinduoduo, Inc., ADR (a)   44,031 5,498,591
2

Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Common Stocks – continued
Specialty Stores – continued  
ThredUp, Inc. (a)   284,495 $6,711,237
        $226,578,316
Total Common Stocks   $2,125,389,430
Investment Companies (h) – 1.0%
Money Market Funds – 1.0%  
MFS Institutional Money Market Portfolio, 0.03% (v)     20,677,632 $20,677,632
 
Other Assets, Less Liabilities – (0.3)%   (5,657,292)
Net Assets – 100.0% $2,140,409,770
(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 $20,677,632 and $2,125,389,430, respectively.      
(s) Security or a portion of the security was pledged to cover collateral requirements for securities sold short and/or certain derivative transactions.      
(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
At May 31, 2021, the fund had cash collateral of $57,286 and other liquid securities with an aggregate value of $530,271 to cover any collateral or margin obligations for securities sold short.
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 and equity securities sold short, 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. Equity securities sold short, for which there were no sales reported that day, are generally valued at the last quoted daily ask 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 $2,125,389,430 $— $— $2,125,389,430
Mutual Funds 20,677,632 20,677,632
Total $2,146,067,062 $— $— $2,146,067,062
For further information regarding security characteristics, see the Portfolio of Investments.
4

Supplemental Information (unaudited) – continued
(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 $38,944,270 $288,267,988 $306,534,626 $238 $(238) $20,677,632
Affiliated Issuers Dividend
Income
Capital Gain
Distributions
MFS Institutional Money Market Portfolio $17,722 $—
(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
GRAPHIC 4 img8dbc03592.gif begin 644 img8dbc03592.gif M1TE&.#EA[@(9 / ((M0@ "'Y! $ $ + #N AD +^A(^IR^T/ MHYRTVHNSWKS[#X;B2);FB:;JRK;N"\?R3-?VC>?ZSO=J P*A\2B\8A,*I?, MIO,)C4JGU*KUBLUJM]RNM^L+BR'?LOF,3JO7[+;[#8\;Q_0Z0([/Z_?\OO\/ MB&(B8J+C(V-A$"'GC.$E9:7F)F8D4R1FC^0D:*CI*NM5YNE*JNLK: MZEJ)&EOR2EMK>XMK)KL+DNO["QPLS$NL(7R,G*S\6=Q,L0P=+3W-YVSM0)VM MOOU]T"T^3EY.! YNKK[.#HUNW1XO/V_[7DR/GZ\/:K^[_P\PH*)^J 0: M/(A0$$%."1LZ?/AE(22(%"M:C"+1SL43C1P[#LDXQJ/(D15!AB&),N7! @ [ end