Full & Historical Holdings

Mid Cap Growth Series


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Based on Market Value Based on Equivalent Exposure
CUSIP/SEDOL Ticker Securities
(on 08-31-25)
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 76,275 $13,279,477.50 3.69% $13,279,477.50 3.69% 70,336.40 Industrials United States
87405410 TTWO US Take-Two Interactive Software Inc 47,515 $11,083,824.05 3.08% $11,083,824.05 3.08% 43,031.37 Communication Services United States
40171V10 GWRE US Guidewire Software Inc 46,999 $10,199,722.98 2.83% $10,199,722.98 2.83% 18,272.05 Information Technology United States
L8681T10 SPOT US Spotify Technology SA 14,666 $10,000,452.08 2.78% $10,000,452.08 2.78% 140,315.90 Communication Services Sweden
92840M10 VST US Vistra Corp 50,906 $9,626,833.66 2.67% $9,626,833.66 2.67% 64,131.36 Utilities United States
77104910 RBLX US ROBLOX Corp 72,766 $9,065,915.94 2.52% $9,065,915.94 2.52% 86,360.93 Communication Services United States
05464C10 AXON US Axon Enterprise Inc 11,363 $8,491,456.27 2.36% $8,491,456.27 2.36% 58,665.58 Industrials United States
53803410 LYV US Live Nation Entertainment Inc 48,854 $8,133,702.46 2.26% $8,133,702.46 2.26% 39,037.41 Communication Services United States
50212V10 LPLA US LPL Financial Holdings Inc 20,653 $7,527,605.44 2.09% $7,527,605.44 2.09% 29,159.90 Financials United States
12504L10 CBRE US CBRE Group Inc 44,608 $7,231,848.96 2.01% $7,231,848.96 2.01% 48,239.51 Real Estate United States
60983910 MPWR US Monolithic Power Systems Inc 8,312 $6,946,837.12 1.93% $6,946,837.12 1.93% 40,026.22 Information Technology United States
16411R20 LNG US Cheniere Energy Inc 27,543 $6,660,448.26 1.85% $6,660,448.26 1.85% 53,563.13 Energy United States
B15C4L CSU CN Constellation Software Inc/Canada 1,960 $6,494,095.75 1.80% $6,494,095.75 1.80% 70,215.75 Information Technology Canada
87256C10 TKO US TKO Group Holdings Inc 33,166 $6,286,946.96 1.75% $6,286,946.96 1.75% 15,569.87 Communication Services United States
12738710 CDNS US Cadence Design Systems Inc 17,858 $6,257,978.94 1.74% $6,257,978.94 1.74% 95,488.67 Information Technology United States
90225210 TYL US Tyler Technologies Inc 10,883 $6,125,823.04 1.70% $6,125,823.04 1.70% 24,351.21 Information Technology United States
77070010 HOOD US Robinhood Markets Inc 58,000 $6,033,740.00 1.68% $6,033,740.00 1.68% 92,401.21 Financials United States
03990B10 ARES US Ares Management Corp 33,494 $6,002,124.80 1.67% $6,002,124.80 1.67% 39,311.28 Financials United States
04351P10 ASND US Ascendis Pharma AS ADR 30,128 $5,852,966.56 1.63% $5,852,966.56 1.63% 11,844.75 Health Care Denmark
26142V10 DKNG US DraftKings Inc 117,919 $5,657,753.62 1.57% $5,657,753.62 1.57% 23,820.63 Consumer Discretionary United States
63230710 NTRA US Natera Inc 33,399 $5,619,381.75 1.56% $5,619,381.75 1.56% 23,091.99 Health Care United States
57479510 MASI US Masimo Corp 39,975 $5,584,907.25 1.55% $5,584,907.25 1.55% 7,589.75 Health Care United States
63110310 NDAQ US Nasdaq Inc 58,827 $5,573,269.98 1.55% $5,573,269.98 1.55% 54,372.61 Financials United States
22160N10 CSGP US CoStar Group Inc 62,078 $5,555,360.22 1.54% $5,555,360.22 1.54% 37,912.47 Real Estate United States
04626A10 ALAB US Astera Labs Inc 30,045 $5,474,199.00 1.52% $5,474,199.00 1.52% 30,285.13 Information Technology United States
14316J10 CG US Carlyle Group Inc 83,845 $5,413,033.20 1.50% $5,413,033.20 1.50% 23,351.67 Financials United States
92345Y10 VRSK US Verisk Analytics Inc 20,083 $5,384,653.96 1.50% $5,384,653.96 1.50% 37,460.38 Industrials United States
92916010 VMC US Vulcan Materials Co 17,955 $5,227,777.80 1.45% $5,227,777.80 1.45% 38,469.27 Materials United States
22266T10 CPNG US Coupang Inc 181,316 $5,182,011.28 1.44% $5,182,011.28 1.44% 51,987.02 Consumer Discretionary South Korea
25213110 DXCM US Dexcom Inc 68,682 $5,174,501.88 1.44% $5,174,501.88 1.44% 29,548.35 Health Care United States
67103H10 ORLY US O'Reilly Automotive Inc 49,474 $5,129,464.32 1.42% $5,129,464.32 1.42% 88,186.16 Consumer Discretionary United States
89400J10 TRU US TransUnion 57,896 $5,118,006.40 1.42% $5,118,006.40 1.42% 17,220.32 Industrials United States
74762E10 PWR US Quanta Services Inc 13,505 $5,104,349.80 1.42% $5,104,349.80 1.42% 56,120.26 Industrials United States
23804L10 DDOG US Datadog Inc 35,710 $4,880,842.80 1.36% $4,880,842.80 1.36% 47,647.88 Information Technology United States
92247510 VEEV US Veeva Systems Inc 17,824 $4,798,220.80 1.33% $4,798,220.80 1.33% 43,990.59 Health Care United States
97415510 WING US Wingstop Inc 14,433 $4,735,755.96 1.32% $4,735,755.96 1.32% 9,162.42 Consumer Discretionary United States
89623910 TRMB US Trimble Inc 56,081 $4,532,466.42 1.26% $4,532,466.42 1.26% 19,235.16 Information Technology United States
V7780T10 RCL US Royal Caribbean Cruises Ltd 11,130 $4,042,638.60 1.12% $4,042,638.60 1.12% 98,660.60 Consumer Discretionary United States
12201710 BURL US Burlington Stores Inc 13,877 $4,033,766.36 1.12% $4,033,766.36 1.12% 18,323.02 Consumer Discretionary United States
14686910 CVNA US Carvana Co 10,621 $3,950,162.32 1.10% $3,950,162.32 1.10% 51,356.02 Consumer Discretionary United States
44857910 H US Hyatt Hotels Corp 26,379 $3,805,962.12 1.06% $3,805,962.12 1.06% 13,774.27 Consumer Discretionary United States
G93A5A10 VIK US Viking Holdings Ltd 57,310 $3,646,062.20 1.01% $3,646,062.20 1.01% 28,192.76 Consumer Discretionary United States
67929510 OKTA US Okta Inc 39,273 $3,643,356.21 1.01% $3,643,356.21 1.01% 16,352.01 Information Technology United States
36168Q10 GFL US GFL Environmental Inc 63,356 $3,170,334.24 0.88% $3,170,334.24 0.88% 18,928.23 Industrials Canada
G8473T10 STE US STERIS PLC 12,760 $3,126,965.60 0.87% $3,126,965.60 0.87% 24,138.41 Health Care United States
87265710 TPG US TPG Inc 47,456 $2,863,969.60 0.80% $2,863,969.60 0.80% 8,726.43 Financials United States
10919410 BFAM US Bright Horizons Family Solutions Inc 23,927 $2,824,343.08 0.78% $2,824,343.08 0.78% 6,748.46 Consumer Discretionary United States
05605H10 BWXT US BWX Technologies Inc 17,267 $2,797,944.68 0.78% $2,797,944.68 0.78% 14,810.29 Industrials United States
23156110 CW US Curtiss-Wright Corp 5,817 $2,781,398.55 0.77% $2,781,398.55 0.77% 18,015.79 Industrials United States
18915M10 NET US Cloudflare Inc 13,323 $2,780,643.33 0.77% $2,780,643.33 0.77% 72,717.69 Information Technology United States
36357610 AJG US Arthur J Gallagher & Co 9,062 $2,743,520.50 0.76% $2,743,520.50 0.76% 77,625.10 Financials United States
85223410 XYZ US Block Inc 34,118 $2,717,157.52 0.75% $2,717,157.52 0.75% 48,596.57 Financials United States
H8088L10 SRAD US Sportradar Group AG 86,147 $2,665,388.18 0.74% $2,665,388.18 0.74% 9,265.29 Consumer Discretionary Switzerland
05550J10 BJ US BJ's Wholesale Club Holdings Inc 26,645 $2,602,683.60 0.72% $2,602,683.60 0.72% 12,898.74 Consumer Staples United States
13321L10 CCJ US Cameco Corp 33,445 $2,588,308.55 0.72% $2,588,308.55 0.72% 33,694.63 Energy Canada
00846U10 A US Agilent Technologies Inc 20,392 $2,562,458.72 0.71% $2,562,458.72 0.71% 35,695.57 Health Care United States
87603010 TPR US Tapestry Inc 24,743 $2,519,332.26 0.70% $2,519,332.26 0.70% 21,191.15 Consumer Discretionary United States
92974010 WAB US Westinghouse Air Brake Technologies Corp 12,937 $2,503,309.50 0.70% $2,503,309.50 0.70% 33,079.44 Industrials United States
03852U10 ARMK US Aramark 63,535 $2,484,853.85 0.69% $2,484,853.85 0.69% 10,280.10 Consumer Discretionary United States
30063P10 EXAS US Exact Sciences Corp 48,894 $2,318,553.48 0.64% $2,318,553.48 0.64% 8,977.51 Health Care United States
56275010 MANH US Manhattan Associates Inc 9,794 $2,110,019.36 0.59% $2,110,019.36 0.59% 13,027.35 Information Technology United States
89267210 TW US Tradeweb Markets Inc 17,001 $2,097,243.36 0.58% $2,097,243.36 0.58% 26,323.42 Financials United States
16516773 EXE US Expand Energy Corp 21,393 $2,070,414.54 0.58% $2,070,414.54 0.58% 23,047.74 Energy United States
71377A10 PFGC US Performance Food Group Co 20,325 $2,060,955.00 0.57% $2,060,955.00 0.57% 15,871.04 Consumer Staples United States
74736L10 QTWO US Q2 Holdings Inc 24,459 $1,925,657.07 0.53% $1,925,657.07 0.53% 4,916.09 Information Technology United States
21720410 CPRT US Copart Inc 33,714 $1,645,580.34 0.46% $1,645,580.34 0.46% 47,196.16 Industrials United States
92537N10 VRT US Vertiv Holdings Co 12,341 $1,574,094.55 0.44% $1,574,094.55 0.44% 48,707.09 Industrials United States
14365830 CCL US Carnival Corp 48,452 $1,545,134.28 0.43% $1,545,134.28 0.43% 41,839.68 Consumer Discretionary United States
M7518J10 ODD US Oddity Tech Ltd 25,268 $1,521,386.28 0.42% $1,521,386.28 0.42% 3,361.40 Consumer Staples Israel
42829110 HXL US Hexcel Corp 23,772 $1,501,201.80 0.42% $1,501,201.80 0.42% 5,026.74 Industrials United States
70557310 PEGA US Pegasystems Inc 27,408 $1,485,787.68 0.41% $1,485,787.68 0.41% 9,275.44 Information Technology United States
25667710 DG US Dollar General Corp 13,369 $1,454,012.44 0.40% $1,454,012.44 0.40% 23,938.84 Consumer Staples United States
00091G10 ACVA US ACV Auctions Inc 121,965 $1,422,111.90 0.40% $1,422,111.90 0.40% 2,006.77 Industrials United States
94184810 WAT US Waters Corp 4,395 $1,326,411.00 0.37% $1,326,411.00 0.37% 17,964.38 Health Care United States
BNGDN8 MRO LN Melrose Industries PLC 146,188 $1,161,815.68 0.32% $1,161,815.68 0.32% 10,070.64 Industrials United Kingdom
16679L10 CHWY US Chewy Inc 26,802 $1,097,809.92 0.30% $1,097,809.92 0.30% 17,000.53 Consumer Discretionary United States
61770010 MORN US Morningstar Inc 4,127 $1,083,007.34 0.30% $1,083,007.34 0.30% 11,068.28 Financials United States
60471A10 MIR US Mirion Technologies Inc 52,175 $1,069,587.50 0.30% $1,069,587.50 0.30% 4,671.77 Information Technology United States
91200810 USFD US US Foods Holding Corp 13,341 $1,035,261.60 0.29% $1,035,261.60 0.29% 17,731.60 Consumer Staples United States
30212P30 EXPE US Expedia Group Inc 4,692 $1,007,841.60 0.28% $1,007,841.60 0.28% 26,740.88 Consumer Discretionary United States
89235610 TSCO US Tractor Supply Co 15,920 $983,219.20 0.27% $983,219.20 0.27% 32,732.18 Consumer Discretionary United States
44351060 HUBB US Hubbell Inc 2,096 $903,355.04 0.25% $903,355.04 0.25% 22,902.81 Industrials United States
33975010 FND US Floor & Decor Holdings Inc 10,512 $861,143.04 0.24% $861,143.04 0.24% 8,822.09 Consumer Discretionary United States
55354G10 MSCI US MSCI Inc 1,505 $854,418.60 0.24% $854,418.60 0.24% 43,921.79 Financials United States
89364110 TDG US TransDigm Group Inc 603 $843,524.64 0.23% $843,524.64 0.23% 78,827.29 Industrials United States
G0260P10 AS US Amer Sports Inc 19,115 $751,601.80 0.21% $751,601.80 0.21% 21,777.20 Consumer Discretionary Finland
81764X10 TTAN US ServiceTitan Inc 6,432 $689,703.36 0.19% $689,703.36 0.19% 9,719.43 Information Technology United States
69370C10 PTC US PTC Inc 2,922 $623,847.00 0.17% $623,847.00 0.17% 25,575.74 Information Technology United States
03110010 AME US AMETEK Inc 3,019 $557,911.20 0.16% $557,911.20 0.16% 42,680.30 Industrials United States
516529 ASM NA ASM International NV 1,040 $499,697.05 0.14% $499,697.05 0.14% 23,701.28 Information Technology Netherlands
14215210 CAI US Caris Life Sciences Inc 11,683 $448,510.37 0.12% $448,510.37 0.12% 10,796.19 Health Care United States
16965610 CMG US Chipotle Mexican Grill Inc 10,219 $430,628.66 0.12% $430,628.66 0.12% 56,527.65 Consumer Discretionary United States
31816X10 FLY US Firefly Aerospace Inc 9,344 $423,937.28 0.12% $423,937.28 0.12% 6,517.35 Industrials United States
31684110 FIG US Figma Inc 5,943 $417,674.04 0.12% $417,674.04 0.12% 28,651.81 Information Technology United States
91820410 VFC US VF Corp 27,142 $410,658.46 0.11% $410,658.46 0.11% 5,910.03 Consumer Discretionary United States
88023B10 TEM US Tempus AI Inc 5,300 $402,058.00 0.11% $402,058.00 0.11% 13,160.12 Health Care United States
12514G10 CDW US CDW Corp/DE 2,349 $387,021.24 0.11% $387,021.24 0.11% 21,600.04 Information Technology United States
BV6KVT BLSH US Bullish 5,111 $301,702.33 0.08% $301,702.33 0.08% 8,629.23 Financials Cayman Islands
CASH CASH Cash & Cash Equivalents - $4,413,240.88 1.23% $4,401,175.80 1.22% - - -
CASH_DERV CASH_DERV Other - $0.00 0.00% $12,065.08 0.00% - - -

*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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