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 2024-08-31 2024-02-29 N 1848060027.45 1110060.46 1846949966.99 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 50362.50000000 N Salesforce Inc RCGZFPDMRW58VJ54VR07 79466L302 198906.00000000 NS USD 61426150.92000000 3.325815642970 Long EC CORP US N 1 N N N Intuit Inc VI90HBPH7XSFMB9E4M29 461202103 71564.00000000 NS USD 47439059.96000000 2.568508124630 Long EC CORP US N 1 N N N Accenture PLC 5493000EWHDSR3MZWH98 000000000 137545.00000000 NS USD 51549115.10000000 2.791040148424 Long EC CORP IE N 1 N N N MSCI Inc 549300HTIN2PD78UB763 55354G100 18259.00000000 NS USD 10242751.23000000 0.554576540408 Long EC CORP US N 1 N N N Amphenol Corp 549300D3L3G0R4U4VT04 032095101 227285.00000000 NS USD 24828613.40000000 1.344303518977 Long EC CORP US N 1 N N N Constellation Software Inc/Canada 549300B6PYHMCTDWQV29 21037X100 8476.00000000 NS 23597711.12000000 1.277658384999 Long EC CORP CA N 1 N N N HubSpot Inc 529900BLNVEW0MVKJB37 443573100 40838.00000000 NS USD 25270962.78000000 1.368253782271 Long EC CORP US N 1 N N N Dun & Bradstreet Holdings Inc N/A 26484T106 574861.00000000 NS USD 6059034.94000000 0.328056257521 Long EC CORP US N 1 N N N Hitachi Ltd 549300T6IPOCDWLKC615 000000000 441800.00000000 NS 37322552.03000000 2.020766815401 Long EC CORP JP N 1 N N N FleetCor Technologies Inc 549300DG6RR0NQSFLN74 339041105 29932.00000000 NS USD 8359109.64000000 0.452589934183 Long EC CORP US N 1 N N N Advanced Micro Devices Inc R2I72C950HOYXII45366 007903107 253955.00000000 NS USD 48893956.15000000 2.647281032181 Long EC CORP US N 1 N N N Alphabet Inc 5493006MHB84DD0ZWV18 02079K305 1040296.00000000 NS USD 144039384.16000000 7.798770228450 Long EC CORP US N 1 N N N ASML Holding NV 724500Y6DUVHQD6OXN27 000000000 5667.00000000 NS USD 5393170.56000000 0.292004150431 Long EC CORP NL N 1 N N N CONSTELLATION SOFTWARE INC 549300B6PYHMCTDWQV29 000000000 9895.00000000 NS 0.00000000 0.000000 N/A DE CA N 2 N/A N/A Call Purchased Constellation Software, Inc. Constellation Software, Inc. 1.00000000 1.00000000 CAD 2040-03-31 XXXX 0.00000000 N N N Tyler Technologies Inc 25490040SMU4Z8LBCW70 902252105 29293.00000000 NS USD 12805142.02000000 0.693312880633 Long EC CORP US N 1 N N N Microsoft Corp INR2EJN1ERAN0W5ZP974 594918104 545558.00000000 NS USD 225664611.12000000 12.21823087540 Long EC CORP US N 1 N N N NVIDIA Corp 549300S4KLFTLO7GSQ80 67066G104 255896.00000000 NS USD 202444443.52000000 10.96101394938 Long EC CORP US N 1 N N N Take-Two Interactive Software Inc BOMSTHHJK882EWYX3334 874054109 104202.00000000 NS USD 15310399.86000000 0.828955853360 Long EC CORP US N 1 N N N Gartner Inc PP55B5R38BFB8O8HH686 366651107 60792.00000000 NS USD 28302323.52000000 1.532381711786 Long EC CORP US N 1 N N N Marvell Technology Inc N/A 573874104 548951.00000000 NS USD 39337828.66000000 2.129880579499 Long EC CORP US N 1 N N N Cadence Design Systems Inc GCT7RXJOGLXPV0NXZY22 127387108 121790.00000000 NS USD 37070440.20000000 2.007116644335 Long EC CORP US N 1 N N N Mastercard Inc AR5L2ODV9HN37376R084 57636Q104 17007.00000000 NS USD 8074243.32000000 0.437166326338 Long EC CORP US N 1 N N N Broadcom Inc 549300WV6GIDOZJTV909 11135F101 70107.00000000 NS USD 91173452.43000000 4.936433258047 Long EC CORP US N 1 N N N Intel Corp KNX4USFCNGPY45LOCE31 458140100 666375.00000000 NS USD 28687443.75000000 1.553233398994 Long EC CORP US N 1 N N N Descartes Systems Group Inc/The 875500NEPA7JI5EOMN45 249906108 198000.00000000 NS 17161507.57000000 0.929180967363 Long EC CORP CA N 1 N N N Topicus.com Inc N/A 89072T102 99888.00000000 NS 9052959.51000000 0.490157268567 Long EC CORP CA N 1 N N N Arista Networks Inc 635400H1WKBLOQERUU95 040413106 44510.00000000 NS USD 12353305.40000000 0.668848946684 Long EC CORP US N 1 N N N MFS Institutional Money Market Portfolio 5L2W638H85N8T1136O07 55291X109 30006991.64000000 NS USD 30006991.64000000 1.624678100452 Long STIV RF US N 1 N N N ServiceNow Inc 549300HJTQM36M0E1G39 81762P102 87649.00000000 NS USD 67607179.66000000 3.660477049639 Long EC CORP US N 1 N N N FactSet Research Systems Inc 549300ZSJE7NBK6K9P30 303075105 24127.00000000 NS USD 11160667.66000000 0.604275581876 Long EC CORP US N 1 N N N Analog Devices Inc GYVOE5EZ4GDAVTU4CQ61 032654105 41697.00000000 NS USD 7998318.54000000 0.433055506805 Long EC CORP US N 1 N N N Meta Platforms Inc BQ4BKCS1HXDV9HN80Z93 30303M102 313686.00000000 NS USD 153746919.18000000 8.324368387226 Long EC CORP US N 1 N N N Oracle Corp 1Z4GXXU7ZHVWFCD8TV52 68389X105 276756.00000000 NS USD 30908110.08000000 1.673467643001 Long EC CORP US N 1 N N N Aon PLC 635400FALWQYX5E6QC64 000000000 25756.00000000 NS USD 8138638.44000000 0.440652891819 Long EC CORP IE N 1 N N N Palo Alto Networks Inc 549300QXR2YVZV231H43 697435105 127198.00000000 NS USD 39501338.90000000 2.138733566474 Long EC CORP US N 1 N N N Shopify Inc 549300HGQ43STJLLP808 82509L107 435022.00000000 NS USD 33222630.14000000 1.798783439388 Long EC CORP CA N 1 N N N Lam Research Corp 549300I4GMO6D34U1T02 512807108 25888.00000000 NS USD 24289416.00000000 1.315109582507 Long EC CORP US N 1 N N N KLA Corp 549300H0BF5JCG96TJ81 482480100 39480.00000000 NS USD 26937204.00000000 1.458469611058 Long EC CORP US N 1 N N N Verisk Analytics Inc 549300I1YSWNIRKBWP67 92345Y106 97215.00000000 NS USD 23516308.50000000 1.273250977032 Long EC CORP US N 1 N N N Pinterest Inc N/A 72352L106 525191.00000000 NS USD 19274509.70000000 1.043585914317 Long EC CORP US N 1 N N N Synopsys Inc QG7T915N9S0NY5UKNE63 871607107 32420.00000000 NS USD 18600326.60000000 1.007083404122 Long EC CORP US N 1 N N N Apple Inc HWUPKR0MPOU8FGXBT394 037833100 294711.00000000 NS USD 53269013.25000000 2.884161141452 Long EC CORP US N 1 N N N Taiwan Semiconductor Manufacturing Co Ltd 549300KB6NK5SBD14S87 000000000 430000.00000000 NS 9386418.64000000 0.508211852392 Long EC CORP TW N 1 N N N Booking Holdings Inc FXM8FAOHMYDIPD38UZ17 09857L108 8455.00000000 NS USD 29328957.65000000 1.587967090294 Long EC CORP US N 1 N N N S&P Global Inc Y6X4K52KMJMZE7I7MY94 78409V104 24441.00000000 NS USD 10470035.58000000 0.566882469321 Long EC CORP US N 1 N N N Amazon.com Inc ZXTILKJKG63JELOEG630 023135106 117180.00000000 NS USD 20712736.80000000 1.121456302021 Long EC CORP US N 1 N N N Onto Innovation Inc 254900RXZVN73CHOO062 683344105 34664.00000000 NS USD 6383722.24000000 0.345635905362 Long EC CORP US N 1 N N N 2024-03-22 MFS SERIES TRUST I James Byrne James Byrne Assistant Treasurer