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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) |
|---|---|---|---|---|---|
| NVENT ELEC PLC | SHS | G6700G107 | — | 623 shares | $105,667 |
| GENERAC HLDGS INC | COM | 368736104 | — | 254 shares | $105,481 |
| FORTREA HLDGS INC | COMMON STOCK | 34965K107 | — | 6,012 shares | $104,609 |
| RYMAN HOSPITALITY PPTYS INC | COM | 78377T107 | — | 812 shares | $104,383 |
| FERROGLOBE PLC | SHS | G33856108 | — | 32,790 shares | $104,272 |
| ADVANCED ENERGY INDS | COM | 007973100 | — | 279 shares | $104,031 |
| ON SEMICONDUCTOR CORP | COM | 682189105 | — | 1,234 shares | $102,644 |
| ENTEGRIS INC | COM | 29362U104 | — | 400 shares | $102,035 |
| BAKER HUGHES COMPANY | CL A | 05722G100 | — | 1,265 shares | $101,339 |
| BIOLIFE SOLUTIONS INC | COM NEW | 09062W204 | — | 3,568 shares | $100,760 |
| CORVUS PHARMACEUTICALS INC | COM | 221015100 | — | 6,738 shares | $100,666 |
| GERDAU SA | SPON ADR REP PFD | 373737105 | — | 24,699 shares | $99,784 |
| VANDA PHARMACEUTICALS INC | COM | 921659108 | — | 16,299 shares | $99,750 |
| RB GLOBAL INC | COM | 74935Q107 | — | 854 shares | $99,448 |
| YORK SPACE SYSTEMS INC | COM | 987084100 | — | 4,019 shares | $98,948 |
| CENTURI HOLDINGS INC | COM SHS | 155923105 | — | 3,255 shares | $98,431 |
| IQVIA HLDGS INC | COM | 46266C105 | — | 507 shares | $97,963 |
| SUZANO S A | SPON ADS | 86959K105 | — | 14,297 shares | $97,039 |
| AMER SPORTS INC | COM SHS | G0260P102 | — | 2,008 shares | $96,371 |
| OLEMA PHARMACEUTICALS INC | COM | 68062P106 | — | 7,649 shares | $95,689 |
| BAYTEX ENERGY CORP | COM | 07317Q105 | — | 16,775 shares | $95,450 |
| PTC THERAPEUTICS INC | COM | 69366J200 | — | 1,170 shares | $95,437 |
| INTELLIA THERAPEUTICS INC | COM | 45826J105 | — | 5,615 shares | $95,006 |
| CULLINAN THERAPEUTICS INC | COM | 230031106 | — | 5,196 shares | $94,619 |
| TOTALENERGIES SE | ACT | F92124100 | — | 1,216 shares | $94,556 |
| AMERICAN HOMES 4 RENT | CL A | 02665T306 | — | 2,812 shares | $94,258 |
| CAVA GROUP INC | COM | 148929102 | — | 832 shares | $92,605 |
| XPO INC | COM | 983793100 | — | 451 shares | $92,586 |
| MAREX GROUP PLC | ORD | G5S37H101 | — | 1,516 shares | $92,400 |
| SAP SE | SPON ADR | 803054204 | — | 594 shares | $91,541 |
| TYSON FOODS INC | CL A | 902494103 | — | 1,106 shares | $91,395 |
| MINIMED GROUP INC | COM | 60365F109 | — | 6,093 shares | $91,090 |
| THRYV HLDGS INC | COM NEW | 886029206 | — | 22,881 shares | $90,151 |
| CARRIER GLOBAL CORPORATION | COM | 14448C104 | — | 1,216 shares | $89,194 |
| CALIFORNIA RES CORP | COM STOCK | 13057Q305 | — | 1,687 shares | $89,192 |
| HILLMAN SOLUTIONS CORP | COM | 431636109 | — | 10,529 shares | $88,865 |
| GFL ENVIRONMENTAL INC | SUB VTG SHS | 36168Q104 | — | 2,387 shares | $87,817 |
| GUARDANT HEALTH INC | COM | 40131M109 | — | 584 shares | $87,618 |
| CENTURY ALUM CO | COM | 156431108 | — | 1,884 shares | $86,683 |
| GSK PLC | SPONSORED ADR | 37733W204 | — | 1,652 shares | $86,598 |
| TRACTOR SUPPLY CO | COM | 892356106 | — | 2,737 shares | $86,517 |
| ADVANCED DRAIN SYS INC DEL | COM | 00790R104 | — | 546 shares | $85,700 |
| KEROS THERAPEUTICS INC | COM | 492327101 | — | 7,973 shares | $85,311 |
| SITIME CORP | COM | 82982T106 | — | 114 shares | $84,994 |
| PRINCIPAL FINANCIAL GROUP IN | COM | 74251V102 | — | 787 shares | $84,823 |
| CREDICORP LTD | COM | G2519Y108 | — | 150 shares | $84,349 |
| EQT CORP | COM | 26884L109 | — | 1,097 shares | $84,191 |
| DOLLAR GEN CORP | COM | 256677105 | — | 730 shares | $84,030 |
| KRATOS DEFENSE & SEC SOLUTIO | COM NEW | 50077B207 | — | 1,655 shares | $82,518 |
| BRIGHTSPRING HEALTH SVCS INC | COM | 10950A106 | — | 1,181 shares | $82,363 |
| SAIA INC | COM | 78709Y105 | — | 189 shares | $79,599 |
| UFP INDUSTRIES INC | COM | 90278Q108 | — | 872 shares | $79,125 |
| GINKGO BIOWORKS HOLDINGS INC | CL A NEW | 37611X209 | — | 7,967 shares | $78,953 |
| CARIS LIFE SCIENCES INC | COM | 142152107 | — | 4,355 shares | $77,606 |
| DIVERSIFIED HEALTHCARE TR | COM SH BEN INT | 25525P107 | — | 8,285 shares | $77,051 |
| MINIMED GROUP INC | COM | 60365F109 | — | 5,874 shares | $76,810 |
| E L F BEAUTY INC | COM | 26856L103 | — | 1,037 shares | $76,738 |
| TOPBUILD COR | COM | 89055F103 | — | 152 shares | $76,427 |
| BAIDU INC | SPON ADR REP A | 056752108 | — | 660 shares | $75,431 |
| NEW YORK TIMES CO MTN BE | CL A | 650111107 | — | 753 shares | $74,735 |
| NEWMONT CORP | COM | 651639106 | — | 793 shares | $74,066 |
| EPAM SYS INC | COM | 29414B104 | — | 642 shares | $73,532 |
| BENTLEY SYS INC | COM CL B | 08265T208 | — | 2,460 shares | $73,529 |
| INTERACTIVE BROKERS GROUP IN | COM CL A | 45841N107 | — | 841 shares | $73,201 |
| AIR PRODUCTS AND CHEMICALS I | COM | 009158106 | — | 249 shares | $73,002 |
| AVANTOR INC | COM | 05352A100 | — | 7,304 shares | $72,310 |
| ICHOR HOLDINGS | SHS | G4740B105 | — | 644 shares | $72,308 |
| BIOAGE LABS INC | COM | 09077V100 | — | 2,936 shares | $71,961 |
| BLOCK INC | CL A | 852234103 | — | 936 shares | $71,136 |
| GREENWICH LIFESCIENCES INC | COM | 396879108 | — | 3,031 shares | $71,107 |
| INTERNATIONAL PAPER CO | COM | 460146103 | — | 1,862 shares | $70,942 |
| SITEONE LANDSCAPE SUPPLY INC | COM | 82982L103 | — | 615 shares | $70,362 |
| COMPANHIA DE SANEAMENTO BASI | SPONSORED ADR | 20441A102 | — | 12,054 shares | $69,672 |
| ALLEGION PLC | ORD SHS | G0176J109 | — | 493 shares | $69,262 |
| ALIGN TECHNOLOGY INC | COM | 016255101 | — | 410 shares | $69,151 |
| SLB LIMITED | COM STK | 806857108 | — | 1,460 shares | $67,875 |
| ZOOM COMMUNICATIONS INC | CL A | 98980L101 | — | 784 shares | $67,667 |
| ING GROEP N.V. | SPONSORED ADR | 456837103 | — | 2,137 shares | $67,059 |
| NU HLDGS LTD | ORD SHS CL A | G6683N103 | — | 3,470 shares | $66,916 |
| CBOE GLOBAL MKTS INC | COM | 12503M108 | — | 270 shares | $65,521 |
| ARCTURUS THERAPEUTICS HLDGS | COM | 03969T109 | — | 9,747 shares | $65,500 |
| FASTLY INC | CL A | 31188V100 | — | 3,556 shares | $65,288 |
| TENCENT MUSIC ENTMT GROUP | SPON ADS | 88034P109 | — | 8,807 shares | $64,321 |
| POWER SOLUTIONS INTL INC | COM NEW | 73933G202 | — | 1,650 shares | $64,169 |
| ANGLOGOLD ASHANTI PLC | COM SHS | G0378L100 | — | 791 shares | $63,984 |
| CBRE GROUP INC | CL A | 12504L109 | — | 334 shares | $63,802 |
| VISHAY INTERTECHNOLOGY INC | COM | 928298108 | — | 1,181 shares | $63,514 |
| SUMITOMO MITSUI FIN GRP INC | SPONSORED ADR | 86562M209 | — | 2,658 shares | $62,676 |
| BULLISH | ORD SHS | G16910120 | — | 2,652 shares | $62,136 |
| STOKE THERAPEUTICS INC | COM | 86150R107 | — | 1,831 shares | $59,910 |
| LEONARDO DRS INC | COM | 52661A108 | — | 1,384 shares | $59,055 |
| TANGO THERAPEUTICS INC | COM | 87583X109 | — | 1,884 shares | $58,894 |
| CACI INTL INC | CL A | 127190304 | — | 127 shares | $58,834 |
| DROPBOX INC | CL A | 26210C104 | — | 2,131 shares | $58,539 |
| FLOWSERVE CORP | COM | 34354P105 | — | 787 shares | $58,364 |
| CISCO SYS INC | COM | 17275R102 | — | 496 shares | $58,260 |
| KNIFE RIVER CORP | COMMON STOCK | 498894104 | — | 690 shares | $57,719 |
| MOLINA HEALTHCARE INC | COM | 60855R100 | — | 251 shares | $57,404 |
| EQT CORP | COM | 26884L109 | — | 1,078 shares | $57,317 |
| SEPTERNA INC | COM | 81734D104 | — | 1,688 shares | $56,531 |