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MASSACHUSETTS FINANCIAL SERVICES CO /MA/
Period ended Jun 30, 2026 · Latest filing Aug 3, 2026
These quarterly holdings are delayed and may not include all assets or short positions.
Values are from the reporting date, not current prices or purchase costs.
The same security may appear in multiple rows.
Source: SEC
Reported portfolio value
Quarter-end reported holdings; not current value or investment performance.
View reported values
- Sep 30, 2024: $334,822,179,920
- Dec 31, 2024: $316,871,957,951
- Mar 31, 2025: $300,806,701,806
- Jun 30, 2025: $315,084,349,169
- Sep 30, 2025: $322,797,408,486
- Dec 31, 2025: $310,120,832,326
- Mar 31, 2026: $297,515,992,264
- Jun 30, 2026: $315,170,492,568
Top holdings
Top 10 at Jun 30, 2026. Matching entries are combined; security classes and options remain separate. Shares exclude principal amounts; option shares reflect the reported underlying amount.
View top holdings values
- NVIDIA CORPORATION · COM · 67066G104 · shares: $13,660,451,307
- ALPHABET INC · CAP STK CL A · 02079K305 · shares: $10,524,433,101
- APPLE INC · COM · 037833100 · shares: $8,929,188,117
- AMAZON COM INC · COM · 023135106 · shares: $8,849,366,281
- MICROSOFT CORP · COM · 594918104 · shares: $8,756,244,370
- BROADCOM INC · COM · 11135F101 · shares: $5,459,679,444
- TAIWAN SEMICONDUCTOR MANUFAC · SPONSORED ADS · 874039100 · shares: $4,728,671,524
- KLA CORP · COM NEW · 482480100 · shares: $4,473,694,536
- JPMORGAN CHASE & CO · COM · 46625H100 · shares: $4,026,741,252
- LINDE PLC · SHS · G54950103 · shares: $3,254,734,640
Reported holdings
4,175 reported entries| Issuer | Class | CUSIP | Type | Shares / principal | Reported value (USD) |
|---|---|---|---|---|---|
| CYTOKINETICS INC | COM NEW | 23282W605 | — | 5,832 shares | $496,828 |
| B2GOLD CORP | COM | 11777Q209 | — | 93,211 shares | $495,883 |
| VIASAT INC | COM | 92552V100 | — | 5,510 shares | $494,853 |
| PROG HOLDINGS INC | COM NPV | 74319R101 | — | 10,614 shares | $494,719 |
| CORVUS PHARMACEUTICALS INC | COM | 221015100 | — | 33,090 shares | $494,365 |
| VERALTO CORP | COM SHS | 92338C103 | — | 5,573 shares | $494,214 |
| VERTIV HOLDINGS CO | COM CL A | 92537N108 | — | 1,037 shares | $492,428 |
| AUTOZONE INC | COM | 053332102 | — | 154 shares | $492,175 |
| INTEL CORP | COM | 458140100 | — | 3,513 shares | $490,520 |
| INTUIT | COM | 461202103 | — | 1,874 shares | $489,114 |
| CORTEVA INC | COM | 22052L104 | — | 5,759 shares | $487,730 |
| HECLA MINING COMPANY | COM | 422704106 | — | 31,518 shares | $486,323 |
| CENTURI HOLDINGS INC | COM SHS | 155923105 | — | 15,985 shares | $483,386 |
| CULLINAN THERAPEUTICS INC | COM | 230031106 | — | 26,517 shares | $482,875 |
| ARGAN INC | COM | 04010E109 | — | 604 shares | $482,324 |
| ROKU INC | COM CL A | 77543R102 | — | 3,481 shares | $480,865 |
| ENVISTA HOLDINGS CORPORATION | COM | 29415F104 | — | 18,181 shares | $479,069 |
| TRINET GROUP INC | COM | 896288107 | — | 9,610 shares | $475,599 |
| SILICON MOTION TECHNOLOGY CO | SPONSORED ADR | 82706C108 | — | 1,425 shares | $474,995 |
| ELASTIC N V | ORD SHS | N14506104 | — | 8,306 shares | $473,608 |
| CEREBRAS SYSTEMS INC | COM CL A | 15675D103 | — | 2,436 shares | $470,879 |
| OLEMA PHARMACEUTICALS INC | COM | 68062P106 | — | 37,562 shares | $469,901 |
| STATE STR CORP | COM | 857477103 | — | 2,754 shares | $467,078 |
| INTELLIA THERAPEUTICS INC | COM | 45826J105 | — | 27,545 shares | $466,061 |
| AMERICAN TOWER CORP | COM | 03027X100 | — | 2,835 shares | $463,721 |
| PHOENIX ED PARTNERS INC | COM | 718968100 | — | 14,116 shares | $463,711 |
| CHARLES RIV LABS INTL INC | COM | 159864107 | — | 1,399 shares | $457,967 |
| BWX TECHNOLOGIES INC | COM | 05605H100 | — | 1,655 shares | $456,883 |
| NOMAD FOODS LTD | USD ORD SHS | G6564A105 | — | 41,689 shares | $456,495 |
| PAR PAC HOLDINGS INC | COM NEW | 69888T207 | — | 8,130 shares | $455,930 |
| MAREX GROUP PLC | ORD | G5S37H101 | — | 7,446 shares | $453,834 |
| AUTOZONE INC | COM | 053332102 | — | 142 shares | $453,823 |
| CONSTELLATION BRANDS INC | CL A | 21036P108 | — | 3,256 shares | $452,877 |
| REPLIGEN CORP | COM | 759916109 | — | 2,338 shares | $452,417 |
| CLEAR SECURE INC | COM CL A | 18467V109 | — | 8,117 shares | $452,360 |
| MIRUM PHARMACEUTICALS INC | COM | 604749101 | — | 3,840 shares | $449,549 |
| ALLIANT ENERGY CORP | COM | 018802108 | — | 5,850 shares | $446,297 |
| BIO-TECHNE CORP | COM | 09073M104 | — | 4,421 shares | $442,981 |
| TELEDYNE TECHNOLOGIES INC | COM | 879360105 | — | 460 shares | $442,803 |
| THRYV HLDGS INC | COM NEW | 886029206 | — | 112,383 shares | $442,789 |
| ALLEGION PLC | ORD SHS | G0176J109 | — | 2,178 shares | $441,667 |
| ALBEMARLE CORP | COM | 012653101 | — | 3,251 shares | $438,983 |
| NASDAQ INC | COM | 631103108 | — | 5,551 shares | $437,530 |
| PHOTRONICS INC | COM | 719405102 | — | 13,438 shares | $437,138 |
| TECK RESOURCES LTD | CL B | 878742204 | — | 5,077 shares | $436,311 |
| DIGITAL RLTY TR INC | COM | 253868103 | — | 2,409 shares | $432,608 |
| HEARTFLOW INC | COM | 42238D107 | — | 14,591 shares | $428,100 |
| CINTAS CORP | COM | 172908105 | — | 2,505 shares | $426,050 |
| ENERSYS | COM | 29275Y102 | — | 1,818 shares | $425,085 |
| EQUITY LIFESTYLE PROPERTIES | COM | 29472R108 | — | 4,567 shares | $424,860 |
| DRAFTKINGS INC NEW | COM CL A | 26142V105 | — | 11,838 shares | $424,096 |
| NORDSON CORP | COM | 655663102 | — | 1,405 shares | $423,874 |
| ASE TECHNOLOGY HLDG CO LTD | SPONSORED ADS | 00215W100 | — | 9,375 shares | $423,000 |
| TAPESTRY INC | COM | 876030107 | — | 2,033 shares | $422,058 |
| CARLYLE GROUP INC | COM | 14316J108 | — | 6,919 shares | $420,553 |
| KEROS THERAPEUTICS INC | COM | 492327101 | — | 39,148 shares | $418,884 |
| SOLVENTUM CORP | COM SHS | 83444M101 | — | 5,429 shares | $418,847 |
| TELUS CORPORATION | COM | 87971M103 | — | 27,913 shares | $418,695 |
| SEMTECH CORP | COM | 816850101 | — | 2,581 shares | $417,735 |
| SOLVENTUM CORP | COM SHS | 83444M101 | — | 5,392 shares | $415,993 |
| PERFORMANCE FOOD GROUP CO | COM | 71377A103 | — | 2,622 shares | $415,708 |
| SITIME CORP | COM | 82982T106 | — | 557 shares | $415,277 |
| INTERNATIONAL PAPER CO | COM | 460146103 | — | 7,525 shares | $413,832 |
| ONCE UPON A FARM PBC | COM | 68237F108 | — | 20,190 shares | $413,491 |
| EQUITABLE HLDGS INC | COM | 29452E101 | — | 9,408 shares | $412,823 |
| SOUTHWEST GAS HLDGS INC | COM | 844895102 | — | 4,638 shares | $411,298 |
| WELLTOWER INC | CALL | 95040Q904 | CALL | 44,700 shares | $411,125 |
| BALL CORP | COM | 058498106 | — | 6,581 shares | $410,654 |
| SM ENERGY COMPANY | COM | 78454L100 | — | 15,714 shares | $410,135 |
| CARIS LIFE SCIENCES INC | COM | 142152107 | — | 22,959 shares | $409,129 |
| VIPSHOP HLDGS LTD | SPONSORED ADS A | 92763W103 | — | 30,746 shares | $407,692 |
| LEIDOS HOLDINGS INC | COM | 525327102 | — | 2,743 shares | $407,689 |
| IRIDIUM COMMUNICATIONS INC | COM | 46269C102 | — | 7,396 shares | $405,671 |
| KRATOS DEFENSE & SEC SOLUTIO | COM NEW | 50077B207 | — | 8,131 shares | $405,412 |
| BRIGHTSPRING HEALTH SVCS INC | COM | 10950A106 | — | 5,801 shares | $404,562 |
| TENCENT MUSIC ENTMT GROUP | SPON ADS | 88034P109 | — | 48,182 shares | $402,320 |
| TYLER TECHNOLOGIES INC | COM | 902252105 | — | 947 shares | $399,769 |
| MODINE MFG CO | COM | 607828100 | — | 1,031 shares | $397,370 |
| LEONARDO DRS INC | COM | 52661A108 | — | 6,442 shares | $396,767 |
| CACI INTL INC | CL A | 127190304 | — | 592 shares | $395,857 |
| SEMTECH CORP | COM | 816850101 | — | 2,783 shares | $393,972 |
| RTX CORPORATION | COM | 75513E101 | — | 1,437 shares | $393,536 |
| BLACKSTONE DIGITAL INFRASTRU | COMMON STOCK | 09264B107 | — | 12,581 shares | $392,793 |
| POWER INTEGRATIONS INC | COM | 739276103 | — | 4,683 shares | $392,248 |
| CARPENTER TECHNOLOGY CORP | COM | 144285103 | — | 448 shares | $391,925 |
| FLOWSERVE CORP | COM | 34354P105 | — | 3,658 shares | $391,567 |
| MERCADOLIBRE INC | COM | 58733R102 | — | 230 shares | $390,400 |
| OIL STS INTL INC | COM | 678026105 | — | 48,706 shares | $390,135 |
| KNIFE RIVER CORP | COMMON STOCK | 498894104 | — | 3,227 shares | $389,634 |
| TELADOC HEALTH INC | COM | 87918A105 | — | 45,919 shares | $389,393 |
| GINKGO BIOWORKS HOLDINGS INC | CL A NEW | 37611X209 | — | 39,123 shares | $387,709 |
| JANUS LIVING INC | CL A-1 | 471024109 | — | 9,293 shares | $385,509 |
| MORNINGSTAR INC | COM | 617700109 | — | 2,469 shares | $385,213 |
| WEX INC | COM | 96208T104 | — | 2,730 shares | $385,176 |
| CUSHMAN AND WAKEFIELD LTD | COMMON SHARES | G2717C106 | — | 28,608 shares | $383,061 |
| QUALCOMM INC | COM | 747525103 | — | 2,072 shares | $382,885 |
| AVANTOR INC | COM | 05352A100 | — | 38,608 shares | $382,219 |
| ISHARES INC | ESG AWR MSCI EM | 46434G863 | — | 3,968 shares | $381,489 |
| SYNOPSYS INC | COM | 871607107 | — | 855 shares | $381,390 |
| CME GROUP INC | COM | 12572Q105 | — | 1,334 shares | $381,034 |