Full & Historical Holdings

Mid Cap Growth Series


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Based on Market Value Based on Equivalent Exposure
CUSIP/SEDOL Ticker Securities
(on 07-31-25)
Shares or Par Amount Value Percent of Net Assets Value Percent of Net Assets Market Cap ($mm) GICS Sectors

The Global Industry Classification Standard (GICS®) was developed by and/or is the exclusive property of MSCI, Inc. and S&P Global Market Intelligence Inc. ("S&P Global Market Intelligence"). GICS is a service mark of MSCI and S&P Global Market Intelligence and has been licensed for use by MFS. MFS has applied its own internal sector/industry classification methodology for equity securities and non-equity securities that are unclassified by GICS.

Country
44320110 HWM US Howmet Aerospace Inc 92,726 $16,669,353.02 4.62% $16,669,353.02 4.62% 72,627.08 Industrials United States
40171V10 GWRE US Guidewire Software Inc 47,330 $10,706,992.60 2.97% $10,706,992.60 2.97% 19,046.64 Information Technology United States
87405410 TTWO US Take-Two Interactive Software Inc 47,850 $10,657,630.50 2.96% $10,657,630.50 2.96% 41,086.37 Communication Services United States
92840M10 VST US Vistra Corp 47,707 $9,948,817.78 2.76% $9,948,817.78 2.76% 70,913.61 Utilities United States
77104910 RBLX US ROBLOX Corp 71,740 $9,885,054.60 2.74% $9,885,054.60 2.74% 93,387.17 Communication Services United States
L8681T10 SPOT US Spotify Technology SA 14,770 $9,253,995.80 2.57% $9,253,995.80 2.57% 128,928.15 Communication Services Sweden
05464C10 AXON US Axon Enterprise Inc 11,443 $8,645,072.07 2.40% $8,645,072.07 2.40% 58,815.51 Industrials United States
50212V10 LPLA US LPL Financial Holdings Inc 20,798 $8,230,392.54 2.28% $8,230,392.54 2.28% 31,648.79 Financials United States
92345Y10 VRSK US Verisk Analytics Inc 25,558 $7,123,270.18 1.98% $7,123,270.18 1.98% 38,939.96 Industrials United States
53803410 LYV US Live Nation Entertainment Inc 48,076 $7,100,825.20 1.97% $7,100,825.20 1.97% 34,575.09 Communication Services United States
12504L10 CBRE US CBRE Group Inc 44,922 $6,996,152.28 1.94% $6,996,152.28 1.94% 46,341.11 Real Estate United States
B15C4L CSU CN Constellation Software Inc/Canada 1,974 $6,810,243.01 1.89% $6,810,243.01 1.89% 73,111.79 Information Technology Canada
16411R20 LNG US Cheniere Energy Inc 27,737 $6,542,603.56 1.81% $6,542,603.56 1.81% 52,554.06 Energy United States
90225210 TYL US Tyler Technologies Inc 10,960 $6,406,777.60 1.78% $6,406,777.60 1.78% 25,289.12 Information Technology United States
89400J10 TRU US TransUnion 66,424 $6,322,900.56 1.75% $6,322,900.56 1.75% 18,543.01 Industrials United States
03990B10 ARES US Ares Management Corp 33,730 $6,257,926.90 1.74% $6,257,926.90 1.74% 40,517.15 Financials United States
57479510 MASI US Masimo Corp 40,256 $6,190,970.24 1.72% $6,190,970.24 1.72% 8,338.36 Health Care United States
12738710 CDNS US Cadence Design Systems Inc 16,979 $6,190,034.03 1.72% $6,190,034.03 1.72% 99,542.92 Information Technology United States
77070010 HOOD US Robinhood Markets Inc 58,408 $6,018,944.40 1.67% $6,018,944.40 1.67% 91,155.45 Financials United States
60983910 MPWR US Monolithic Power Systems Inc 8,371 $5,953,790.04 1.65% $5,953,790.04 1.65% 34,062.71 Information Technology United States
22160N10 CSGP US CoStar Group Inc 62,516 $5,950,898.04 1.65% $5,950,898.04 1.65% 40,327.28 Real Estate United States
87256C10 TKO US TKO Group Holdings Inc 33,400 $5,611,534.00 1.56% $5,611,534.00 1.56% 13,734.39 Communication Services United States
74762E10 PWR US Quanta Services Inc 13,600 $5,523,368.00 1.53% $5,523,368.00 1.53% 60,214.05 Industrials United States
63110310 NDAQ US Nasdaq Inc 57,356 $5,518,794.32 1.53% $5,518,794.32 1.53% 55,222.01 Financials United States
22266T10 CPNG US Coupang Inc 182,593 $5,373,711.99 1.49% $5,373,711.99 1.49% 53,180.01 Consumer Discretionary South Korea
26142V10 DKNG US DraftKings Inc 118,750 $5,348,500.00 1.48% $5,348,500.00 1.48% 22,355.11 Consumer Discretionary United States
04351P10 ASND US Ascendis Pharma AS ADR 30,340 $5,263,990.00 1.46% $5,263,990.00 1.46% 10,578.39 Health Care Denmark
25213110 DXCM US Dexcom Inc 64,706 $5,226,303.62 1.45% $5,226,303.62 1.45% 31,677.99 Health Care United States
14316J10 CG US Carlyle Group Inc 84,435 $5,121,827.10 1.42% $5,121,827.10 1.42% 21,906.50 Financials United States
92247510 VEEV US Veeva Systems Inc 17,949 $5,101,105.80 1.41% $5,101,105.80 1.41% 46,441.77 Health Care United States
97415510 WING US Wingstop Inc 13,504 $5,095,599.36 1.41% $5,095,599.36 1.41% 10,536.84 Consumer Discretionary United States
23804L10 DDOG US Datadog Inc 35,961 $5,033,820.78 1.40% $5,033,820.78 1.40% 48,280.64 Information Technology United States
92916010 VMC US Vulcan Materials Co 18,081 $4,966,308.27 1.38% $4,966,308.27 1.38% 36,284.87 Materials United States
67103H10 ORLY US O'Reilly Automotive Inc 49,822 $4,898,499.04 1.36% $4,898,499.04 1.36% 84,048.05 Consumer Discretionary United States
63230710 NTRA US Natera Inc 33,635 $4,495,654.10 1.25% $4,495,654.10 1.25% 18,250.82 Health Care United States
67929510 OKTA US Okta Inc 43,470 $4,251,366.00 1.18% $4,251,366.00 1.18% 17,121.94 Information Technology United States
89623910 TRMB US Trimble Inc 49,807 $4,178,309.23 1.16% $4,178,309.23 1.16% 20,015.06 Information Technology United States
14686910 CVNA US Carvana Co 10,696 $4,173,258.32 1.16% $4,173,258.32 1.16% 53,876.04 Consumer Discretionary United States
04626A10 ALAB US Astera Labs Inc 30,357 $4,150,712.61 1.15% $4,150,712.61 1.15% 22,549.08 Information Technology United States
12201710 BURL US Burlington Stores Inc 13,975 $3,814,616.00 1.06% $3,814,616.00 1.06% 17,220.23 Consumer Discretionary United States
44857910 H US Hyatt Hotels Corp 26,565 $3,744,868.05 1.04% $3,744,868.05 1.04% 13,452.91 Consumer Discretionary United States
36357610 AJG US Arthur J Gallagher & Co 12,253 $3,519,674.25 0.98% $3,519,674.25 0.98% 73,640.27 Financials United States
36168Q10 GFL US GFL Environmental Inc 63,802 $3,211,792.68 0.89% $3,211,792.68 0.89% 19,210.95 Industrials Canada
V7780T10 RCL US Royal Caribbean Cruises Ltd 10,059 $3,197,454.33 0.89% $3,197,454.33 0.89% 86,342.28 Consumer Discretionary United States
89267210 TW US Tradeweb Markets Inc 22,665 $3,140,235.75 0.87% $3,140,235.75 0.87% 29,564.77 Financials United States
G93A5A10 VIK US Viking Holdings Ltd 51,520 $3,025,254.40 0.84% $3,025,254.40 0.84% 26,021.36 Consumer Discretionary United States
16516773 EXE US Expand Energy Corp 28,857 $3,023,636.46 0.84% $3,023,636.46 0.84% 24,952.90 Energy United States
G8473T10 STE US STERIS PLC 12,850 $2,910,396.50 0.81% $2,910,396.50 0.81% 22,280.04 Health Care United States
23156110 CW US Curtiss-Wright Corp 5,858 $2,871,708.76 0.80% $2,871,708.76 0.80% 18,494.04 Industrials United States
92974010 WAB US Westinghouse Air Brake Technologies Corp 14,937 $2,868,650.85 0.80% $2,868,650.85 0.80% 32,831.56 Industrials United States
05550J10 BJ US BJ's Wholesale Club Holdings Inc 26,832 $2,841,508.80 0.79% $2,841,508.80 0.79% 13,984.20 Consumer Staples United States
18915M10 NET US Cloudflare Inc 13,417 $2,786,442.56 0.77% $2,786,442.56 0.77% 71,967.14 Information Technology United States
87265710 TPG US TPG Inc 47,790 $2,727,375.30 0.76% $2,727,375.30 0.76% 7,875.14 Financials United States
10919410 BFAM US Bright Horizons Family Solutions Inc 24,095 $2,725,144.50 0.76% $2,725,144.50 0.76% 6,500.87 Consumer Discretionary United States
03852U10 ARMK US Aramark 63,983 $2,723,116.48 0.76% $2,723,116.48 0.76% 11,183.92 Consumer Discretionary United States
85223410 XYZ US Block Inc 34,359 $2,654,576.34 0.74% $2,654,576.34 0.74% 47,659.76 Financials United States
H8088L10 SRAD US Sportradar Group AG 86,753 $2,565,286.21 0.71% $2,565,286.21 0.71% 8,855.03 Consumer Discretionary Switzerland
13321L10 CCJ US Cameco Corp 33,681 $2,523,717.33 0.70% $2,523,717.33 0.70% 32,618.30 Energy Canada
87603010 TPR US Tapestry Inc 23,126 $2,498,301.78 0.69% $2,498,301.78 0.69% 22,437.83 Consumer Discretionary United States
05605H10 BWXT US BWX Technologies Inc 16,189 $2,459,594.77 0.68% $2,459,594.77 0.68% 13,880.43 Industrials United States
00846U10 A US Agilent Technologies Inc 20,536 $2,357,738.16 0.65% $2,357,738.16 0.65% 32,613.47 Health Care United States
30063P10 EXAS US Exact Sciences Corp 49,238 $2,311,724.10 0.64% $2,311,724.10 0.64% 8,856.54 Health Care United States
74736L10 QTWO US Q2 Holdings Inc 24,631 $2,000,037.20 0.55% $2,000,037.20 0.55% 5,070.32 Information Technology United States
92537N10 VRT US Vertiv Holdings Co 12,428 $1,809,516.80 0.50% $1,809,516.80 0.50% 55,599.79 Industrials United States
56275010 MANH US Manhattan Associates Inc 8,183 $1,797,477.78 0.50% $1,797,477.78 0.50% 13,282.53 Information Technology United States
M7518J10 ODD US Oddity Tech Ltd 25,446 $1,783,001.22 0.49% $1,783,001.22 0.49% 3,911.87 Consumer Staples Israel
00091G10 ACVA US ACV Auctions Inc 122,823 $1,745,314.83 0.48% $1,745,314.83 0.48% 2,430.83 Industrials United States
70557310 PEGA US Pegasystems Inc 27,602 $1,620,513.42 0.45% $1,620,513.42 0.45% 10,045.40 Information Technology United States
21720410 CPRT US Copart Inc 33,951 $1,538,998.83 0.43% $1,538,998.83 0.43% 43,831.22 Industrials United States
71377A10 PFGC US Performance Food Group Co 15,057 $1,511,722.80 0.42% $1,511,722.80 0.42% 15,671.53 Consumer Staples United States
42829110 HXL US Hexcel Corp 23,939 $1,434,185.49 0.40% $1,434,185.49 0.40% 4,768.84 Industrials United States
25667710 DG US Dollar General Corp 13,464 $1,412,373.60 0.39% $1,412,373.60 0.39% 23,085.41 Consumer Staples United States
94184810 WAT US Waters Corp 4,425 $1,277,763.00 0.35% $1,277,763.00 0.35% 17,187.96 Health Care United States
61770010 MORN US Morningstar Inc 4,156 $1,148,967.76 0.32% $1,148,967.76 0.32% 11,749.83 Financials United States
91200810 USFD US US Foods Holding Corp 13,436 $1,119,621.88 0.31% $1,119,621.88 0.31% 19,278.40 Consumer Staples United States
BNGDN8 MRO LN Melrose Industries PLC 147,218 $992,020.78 0.28% $992,020.78 0.28% 8,566.04 Industrials United Kingdom
16679L10 CHWY US Chewy Inc 26,991 $990,569.70 0.27% $990,569.70 0.27% 15,232.41 Consumer Discretionary United States
89364110 TDG US TransDigm Group Inc 608 $977,943.68 0.27% $977,943.68 0.27% 90,434.06 Industrials United States
60471A10 MIR US Mirion Technologies Inc 43,508 $972,403.80 0.27% $972,403.80 0.27% 5,041.15 Information Technology United States
03110010 AME US AMETEK Inc 5,008 $925,728.80 0.26% $925,728.80 0.26% 42,677.98 Industrials United States
44351060 HUBB US Hubbell Inc 2,111 $923,520.28 0.26% $923,520.28 0.26% 23,349.62 Industrials United States
89235610 TSCO US Tractor Supply Co 16,032 $913,022.40 0.25% $913,022.40 0.25% 30,254.12 Consumer Discretionary United States
516529 ASM NA ASM International NV 1,790 $866,368.91 0.24% $866,368.91 0.24% 23,875.26 Information Technology Netherlands
30212P30 EXPE US Expedia Group Inc 4,724 $851,359.28 0.24% $851,359.28 0.24% 23,021.84 Consumer Discretionary United States
55354G10 MSCI US MSCI Inc 1,515 $850,460.40 0.24% $850,460.40 0.24% 43,429.75 Financials United States
33975010 FND US Floor & Decor Holdings Inc 10,586 $811,311.04 0.22% $811,311.04 0.22% 8,246.92 Consumer Discretionary United States
81764X10 TTAN US ServiceTitan Inc 6,477 $755,930.67 0.21% $755,930.67 0.21% 10,578.71 Information Technology United States
14365830 CCL US Carnival Corp 24,320 $724,006.40 0.20% $724,006.40 0.20% 39,058.24 Consumer Discretionary United States
31684110 FIG US Figma Inc 5,916 $683,298.00 0.19% $683,298.00 0.19% 47,087.14 Information Technology United States
69370C10 PTC US PTC Inc 2,942 $631,971.02 0.18% $631,971.02 0.18% 25,766.00 Information Technology United States
16965610 CMG US Chipotle Mexican Grill Inc 10,291 $441,278.08 0.12% $441,278.08 0.12% 57,520.30 Consumer Discretionary United States
12514G10 CDW US CDW Corp/DE 2,366 $412,583.08 0.11% $412,583.08 0.11% 22,965.85 Information Technology United States
G0260P10 AS US Amer Sports Inc 9,420 $353,626.80 0.10% $353,626.80 0.10% 20,791.35 Consumer Discretionary Finland
14215210 CAI US Caris Life Sciences Inc 11,765 $330,361.20 0.09% $330,361.20 0.09% 7,809.18 Health Care United States
81762P10 NOW US ServiceNow Inc 345 $325,376.40 0.09% $325,376.40 0.09% 196,168.96 Information Technology United States
91820410 VFC US VF Corp 27,334 $320,354.48 0.09% $320,354.48 0.09% 4,578.03 Consumer Discretionary United States
88023B10 TEM US Tempus AI Inc 5,337 $302,020.83 0.08% $302,020.83 0.08% 9,783.73 Health Care United States
CASH_DERV CASH_DERV Other - $0.00 0.00% $10,820.03 0.00% - - -
CASH CASH Cash & Cash Equivalents - $1,341,992.52 0.37% $1,331,172.49 0.37% - - -

*Short positions, unlike long positions, lose value if the underlying asset gains value.

Portfolio characteristics are based on equivalent exposure, which measures how a portfolio's value would change due to price changes in an asset held either directly or, in the case of a derivative contract, indirectly. The market value of the holding may differ.
Other. Other consists of: (i) currency derivatives and/or (ii) any derivative offsets.
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MFS registered investment products are offered through MFS® Fund Distributors, Inc., Member SIPC, 111 Huntington Avenue, Boston, MA 02199.

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