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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) |
|---|---|---|---|---|---|
| FLOOR & DECOR HLDGS INC | CL A | 339750101 | — | 1,953 shares | $167,336 |
| ALIBABA GROUP HLDG LTD | SPONSORED ADS | 01609W102 | — | 1,736 shares | $166,621 |
| BARRICK MNG CORP | COM SHS | 06849F108 | — | 4,526 shares | $166,253 |
| RENAISSANCERE HLDGS LTD | COM | G7496G103 | — | 524 shares | $166,056 |
| NETEASE COM INC | SPONSORED ADS | 64110W102 | — | 894 shares | $165,354 |
| LENDINGTREE INC | COM | 52603B107 | — | 3,731 shares | $165,246 |
| T-MOBILE US INC | COM | 872590104 | — | 680 shares | $164,631 |
| D-WAVE QUANTUM INC | COM | 26740W109 | — | 6,751 shares | $161,956 |
| AUTOLIV INC | COM | 052800109 | — | 1,392 shares | $161,709 |
| GRAIL INC | COM | 384747101 | — | 2,361 shares | $161,185 |
| LAMAR ADVERTISING CO | CL A | 512816109 | — | 1,033 shares | $161,127 |
| MORNINGSTAR INC | COM | 617700109 | — | 1,028 shares | $160,389 |
| BROOKFIELD ASSET MANAGMT LTD | CL A LMT VTG SHS | 113004105 | — | 3,571 shares | $160,161 |
| POWER INTEGRATIONS INC | COM | 739276103 | — | 1,333 shares | $158,351 |
| SOUTHERN CO | COM | 842587107 | — | 1,651 shares | $158,017 |
| EXTRA SPACE STORAGE INC | COM | 30225T102 | — | 1,087 shares | $157,941 |
| LINCOLN ELEC HLDGS INC | COM | 533900106 | — | 414 shares | $155,896 |
| ARDELYX INC | COM | 039697107 | — | 30,544 shares | $155,774 |
| THOMSON REUTERS CORP | COM | 884903881 | — | 1,904 shares | $155,460 |
| PTC INC | COM | 69370C100 | — | 1,359 shares | $154,396 |
| OPTION CARE HEALTH INC | COM NEW | 68404L201 | — | 7,291 shares | $152,892 |
| ACADIA RLTY TR | COM SH BEN INT | 004239109 | — | 7,303 shares | $152,706 |
| PTC INC | COM | 69370C100 | — | 1,343 shares | $152,578 |
| FORUM ENERGY TECHNOLOGIES IN | COM | 34984V209 | — | 3,037 shares | $152,549 |
| XPO INC | COM | 983793100 | — | 741 shares | $152,120 |
| BOX INC | CL A | 10316T104 | — | 5,729 shares | $152,048 |
| KENVUE INC | COM | 49177J102 | — | 5,497 shares | $151,628 |
| PEGASYSTEMS INC | COM | 705573103 | — | 5,052 shares | $151,408 |
| COLLEGIUM PHARMACEUTICAL INC | COM | 19459J104 | — | 4,166 shares | $150,809 |
| BLOOMIN BRANDS INC | COM | 094235108 | — | 16,495 shares | $150,764 |
| AMERICOLD REALTY TRUST INC | COM | 03064D108 | — | 9,562 shares | $150,315 |
| NABORS INDUSTRIES LTD | SHS | G6359F137 | — | 1,782 shares | $149,706 |
| GE AEROSPACE | COM NEW | 369604301 | — | 400 shares | $149,492 |
| NEXTPOWER INC | CLASS A COM | 65290E101 | — | 1,242 shares | $147,972 |
| ALCOA CORP | COM | 013872106 | — | 1,995 shares | $147,525 |
| VALE S A | SPONSORED ADS | 91912E105 | — | 6,776 shares | $147,100 |
| HERBALIFE LTD | COM SHS | G4412G101 | — | 11,174 shares | $146,938 |
| VIR BIOTECHNOLOGY INC | COM | 92764N102 | — | 14,402 shares | $146,756 |
| ENTERGY CORP NEW | COM | 29364G103 | — | 1,251 shares | $143,690 |
| DUTCH BROS INC | CL A | 26701L100 | — | 1,975 shares | $141,825 |
| BERKSHIRE HATHAWAY INC DEL | CL B NEW | 084670702 | — | 283 shares | $141,610 |
| IRIDIUM COMMUNICATIONS INC | COM | 46269C102 | — | 2,570 shares | $140,965 |
| PITNEY BOWES INC | COM | 724479100 | — | 8,040 shares | $140,861 |
| DTE ENERGY CO | COM | 233331107 | — | 922 shares | $140,485 |
| KANZHUN LIMITED | SPONSORED ADS | 48553T106 | — | 10,908 shares | $140,386 |
| MAKEMYTRIP LIMITED MAURITIUS | SHS | V5633W109 | — | 1,817 shares | $139,763 |
| ALLIANT ENERGY CORP | COM | 018802108 | — | 1,831 shares | $139,687 |
| AXIS CAP HLDGS LTD | SHS | G0692U109 | — | 1,298 shares | $139,457 |
| SIMPSON MFG INC | COM | 829073105 | — | 657 shares | $137,543 |
| ARVINAS INC | COM | 04335A105 | — | 16,471 shares | $136,874 |
| CENTENE CORP DEL | COM | 15135B101 | — | 2,117 shares | $135,890 |
| MKS INC. | COM | 55306N104 | — | 304 shares | $135,219 |
| NCINO INC | COM | 63947X101 | — | 8,157 shares | $133,367 |
| NOBLE CORP PLC | ORD SHS A | G65431127 | — | 2,519 shares | $133,257 |
| VERSIGENT PLC | ORDINARY SHARES | G9600F104 | — | 2,446 shares | $132,910 |
| BILLIONTOONE INC | CL A | 090168105 | — | 1,106 shares | $132,698 |
| TRAVERE THERAPEUTICS INC | COM | 89422G107 | — | 2,303 shares | $130,833 |
| ITAU UNIBANCO HLDG S A | SPON ADR REP PFD | 465562106 | — | 18,160 shares | $129,771 |
| CEREBRAS SYSTEMS INC | COM CL A | 15675D103 | — | 414 shares | $129,761 |
| BLOOM ENERGY CORP | COM CL A | 093712107 | — | 302 shares | $129,650 |
| BUTTERFLY NETWORK INC | COM CL A | 124155102 | — | 15,380 shares | $129,500 |
| NATWEST GROUP PLC | SPONS ADR | 639057207 | — | 7,323 shares | $129,104 |
| MYRIAD GENETICS INC | COM | 62855J104 | — | 22,486 shares | $128,395 |
| NUTEX HEALTH INC | COM | 67079U306 | — | 748 shares | $127,826 |
| MKS INC. | COM | 55306N104 | — | 327 shares | $127,219 |
| FLOOR & DECOR HLDGS INC | CL A | 339750101 | — | 1,505 shares | $126,702 |
| CONCENTRIX CORP | COM | 20602D101 | — | 5,634 shares | $126,230 |
| ERASCA INC | COM | 29479A108 | — | 6,888 shares | $126,188 |
| RYERSON HLDG CORP | COM | 783754104 | — | 5,088 shares | $125,216 |
| MERCADOLIBRE INC | COM | 58733R102 | — | 51 shares | $124,952 |
| ANNEXON INC | COM | 03589W102 | — | 21,785 shares | $124,392 |
| GENESCO INC | COM | 371532102 | — | 3,676 shares | $124,139 |
| PACIRA BIOSCIENCES INC | COM | 695127100 | — | 4,863 shares | $123,374 |
| EMBECTA CORP | COMMON STOCK | 29082K105 | — | 37,810 shares | $123,261 |
| OMNICOM GROUP INC | COM | 681919106 | — | 1,166 shares | $122,575 |
| ELEMENT SOLUTIONS INC | COM | 28618M106 | — | 2,567 shares | $122,574 |
| PDD HOLDINGS INC | SPONSORED ADS | 722304102 | — | 1,097 shares | $120,784 |
| PHIBRO ANIMAL HEALTH CORP | CL A COM | 71742Q106 | — | 3,825 shares | $120,105 |
| VENTURE GLOBAL INC | COM CL A | 92333F101 | — | 10,637 shares | $118,390 |
| ZYMEWORKS INC | COM | 98985Y108 | — | 4,459 shares | $116,558 |
| ON SEMICONDUCTOR CORP | COM | 682189105 | — | 848 shares | $115,719 |
| GALLAGHER ARTHUR J & CO | COM | 363576109 | — | 497 shares | $114,096 |
| SAREPTA THERAPEUTICS INC | COM | 803607100 | — | 6,346 shares | $114,038 |
| ARCUS BIOSCIENCES INC | COM | 03969F109 | — | 3,691 shares | $113,794 |
| ARROWHEAD PHARMACEUTICALS IN | COM | 04280A100 | — | 1,396 shares | $113,788 |
| T-MOBILE US INC | COM | 872590104 | — | 678 shares | $113,721 |
| TKO GROUP HOLDINGS INC | CL A | 87256C101 | — | 390 shares | $113,324 |
| CRANE COMPANY | COMMON STOCK | 224408104 | — | 506 shares | $112,873 |
| ENI SPA | SPONSORED ADR | 26874R108 | — | 2,404 shares | $112,651 |
| HAMILTON LANE INC | CL A | 407497106 | — | 1,423 shares | $112,175 |
| COUPANG INC | CL A | 22266T109 | — | 4,467 shares | $111,997 |
| SEZZLE INC | COM | 78435P105 | — | 650 shares | $111,560 |
| GERDAU SA | SPON ADR REP PFD | 373737105 | — | 27,238 shares | $110,042 |
| LIQUIDIA CORPORATION | COM NEW | 53635D202 | — | 1,378 shares | $109,868 |
| PALVELLA THERAPEUTICS INC NE | COM | 697947109 | — | 709 shares | $108,349 |
| BLACKSTONE DIGITAL INFRASTRU | COMMON STOCK | 09264B107 | — | 4,946 shares | $106,982 |
| ON SEMICONDUCTOR CORP | COM | 682189105 | — | 1,127 shares | $106,547 |
| MAXLINEAR INC | COM | 57776J100 | — | 832 shares | $106,521 |
| RIO TINTO PLC | SPONSORED ADR | 767204100 | — | 1,122 shares | $106,511 |
| GENEDX HOLDINGS CORP | COM CL A | 81663L200 | — | 1,543 shares | $105,927 |