Largest positions
| Issuer | Class | Value | Share |
|---|---|---|---|
| Nvidia CorporationCOM | COM | $13,660,451,307 | 4.3% |
| Alphabet Inc.CAP STK CL A | CAP STK CL A | $10,524,433,101 | 3.3% |
| Apple Inc.COM | COM | $8,929,188,117 | 2.8% |
| Amazon Com Inc.COM | COM | $8,849,366,281 | 2.8% |
| Microsoft Corp.COM | COM | $8,756,244,370 | 2.8% |
| Broadcom Inc.COM | COM | $5,459,679,444 | 1.7% |
| Taiwan Semiconductor ManufacSPONSORED ADS | SPONSORED ADS | $4,728,671,524 | 1.5% |
| KLA Corp.COM NEW | COM NEW | $4,473,694,536 | 1.4% |
| JPMORGAN Chase & COCOM | COM | $4,026,741,252 | 1.3% |
| Linde PLCSHS | SHS | $3,254,734,640 | 1.0% |
| UBS Group AGSHS | SHS | $3,198,086,308 | 1.0% |
| The Cigna GroupCOM | COM | $2,895,610,431 | 0.9% |
| Mastercard IncorporatedCL A | CL A | $2,822,752,612 | 0.9% |
| Johnson & JohnsonCOM | COM | $2,703,293,314 | 0.9% |
| Medtronic PLCSHS | SHS | $2,606,272,456 | 0.8% |
| Aon PLCSHS CL A | SHS CL A | $2,575,299,415 | 0.8% |
| Visa Inc.COM CL A | COM CL A | $2,539,934,804 | 0.8% |
| Waters Corp.COM | COM | $2,526,510,262 | 0.8% |
| Seagate Technology Hldngs PLORD SHS | ORD SHS | $2,507,401,741 | 0.8% |
| Becton Dickinson & COCOM | COM | $2,483,123,897 | 0.8% |
| Franco Nev Corp.COM | COM | $2,368,819,589 | 0.8% |
| Thermo Fisher Scientific Inc.COM | COM | $2,276,759,119 | 0.7% |
| Willis Towers Watson PLC LtdSHS | SHS | $2,256,971,395 | 0.7% |
| Rtx CorporationCOM | COM | $2,243,831,039 | 0.7% |
| Exxon Mobil Corp.COM | COM | $2,187,173,039 | 0.7% |
| Analog Devices Inc.COM | COM | $2,153,919,421 | 0.7% |
| Schwab Charles Corp.COM | COM | $2,129,335,613 | 0.7% |
| Eaton Corp. PLCSHS | SHS | $2,115,435,860 | 0.7% |
| Meta Platforms Inc.CL A | CL A | $2,066,227,674 | 0.7% |
| Chubb LimitedCOM | COM | $2,026,619,829 | 0.6% |
| Amphenol Corp.CL A | CL A | $1,932,479,193 | 0.6% |
| Agnico Eagle Mines LtdCOM | COM | $1,924,436,703 | 0.6% |
| Morgan StanleyCOM NEW | COM NEW | $1,918,704,898 | 0.6% |
| Caterpillar Inc.COM | COM | $1,883,622,361 | 0.6% |
| ConocophillipsCOM | COM | $1,877,814,354 | 0.6% |
| Mckesson Corp.COM | COM | $1,856,409,681 | 0.6% |
| GE Vernova Inc.COM | COM | $1,844,396,038 | 0.6% |
| Nasdaq Inc.COM | COM | $1,834,194,725 | 0.6% |
| NXP Semiconductors N VCOM | COM | $1,822,088,150 | 0.6% |
| Union Pac Corp.COM | COM | $1,735,541,703 | 0.6% |
| Arista Networks Inc.COM SHS | COM SHS | $1,712,787,940 | 0.5% |
| Pg&e Corp.COM | COM | $1,711,931,504 | 0.5% |
| Progressive Corp.COM | COM | $1,665,190,116 | 0.5% |
| Humana Inc.COM | COM | $1,664,784,292 | 0.5% |
| Duke Energy Corp. NewCOM NEW | COM NEW | $1,625,079,566 | 0.5% |
| Ryanair Holdings PLCSPONSORED ADR | SPONSORED ADR | $1,586,443,126 | 0.5% |
| Micron Technology Inc.COM | COM | $1,576,786,396 | 0.5% |
| Philip Morris Intl Inc.COM | COM | $1,567,434,041 | 0.5% |
| Prologis Inc..COM | COM | $1,541,518,496 | 0.5% |
| American Express COCOM | COM | $1,535,128,955 | 0.5% |
Nvidia CorporationCOM$13,660,451,307
- Class
- COM
- Share
- 4.3%
Alphabet Inc.CAP STK CL A$10,524,433,101
- Class
- CAP STK CL A
- Share
- 3.3%
Apple Inc.COM$8,929,188,117
- Class
- COM
- Share
- 2.8%
Amazon Com Inc.COM$8,849,366,281
- Class
- COM
- Share
- 2.8%
Microsoft Corp.COM$8,756,244,370
- Class
- COM
- Share
- 2.8%
Broadcom Inc.COM$5,459,679,444
- Class
- COM
- Share
- 1.7%
Taiwan Semiconductor ManufacSPONSORED ADS$4,728,671,524
- Class
- SPONSORED ADS
- Share
- 1.5%
KLA Corp.COM NEW$4,473,694,536
- Class
- COM NEW
- Share
- 1.4%
JPMORGAN Chase & COCOM$4,026,741,252
- Class
- COM
- Share
- 1.3%
Linde PLCSHS$3,254,734,640
- Class
- SHS
- Share
- 1.0%
UBS Group AGSHS$3,198,086,308
- Class
- SHS
- Share
- 1.0%
The Cigna GroupCOM$2,895,610,431
- Class
- COM
- Share
- 0.9%
Mastercard IncorporatedCL A$2,822,752,612
- Class
- CL A
- Share
- 0.9%
Johnson & JohnsonCOM$2,703,293,314
- Class
- COM
- Share
- 0.9%
Medtronic PLCSHS$2,606,272,456
- Class
- SHS
- Share
- 0.8%
Aon PLCSHS CL A$2,575,299,415
- Class
- SHS CL A
- Share
- 0.8%
Visa Inc.COM CL A$2,539,934,804
- Class
- COM CL A
- Share
- 0.8%
Waters Corp.COM$2,526,510,262
- Class
- COM
- Share
- 0.8%
Seagate Technology Hldngs PLORD SHS$2,507,401,741
- Class
- ORD SHS
- Share
- 0.8%
Becton Dickinson & COCOM$2,483,123,897
- Class
- COM
- Share
- 0.8%
Franco Nev Corp.COM$2,368,819,589
- Class
- COM
- Share
- 0.8%
Thermo Fisher Scientific Inc.COM$2,276,759,119
- Class
- COM
- Share
- 0.7%
Willis Towers Watson PLC LtdSHS$2,256,971,395
- Class
- SHS
- Share
- 0.7%
Rtx CorporationCOM$2,243,831,039
- Class
- COM
- Share
- 0.7%
Exxon Mobil Corp.COM$2,187,173,039
- Class
- COM
- Share
- 0.7%
Analog Devices Inc.COM$2,153,919,421
- Class
- COM
- Share
- 0.7%
Schwab Charles Corp.COM$2,129,335,613
- Class
- COM
- Share
- 0.7%
Eaton Corp. PLCSHS$2,115,435,860
- Class
- SHS
- Share
- 0.7%
Meta Platforms Inc.CL A$2,066,227,674
- Class
- CL A
- Share
- 0.7%
Chubb LimitedCOM$2,026,619,829
- Class
- COM
- Share
- 0.6%
Amphenol Corp.CL A$1,932,479,193
- Class
- CL A
- Share
- 0.6%
Agnico Eagle Mines LtdCOM$1,924,436,703
- Class
- COM
- Share
- 0.6%
Morgan StanleyCOM NEW$1,918,704,898
- Class
- COM NEW
- Share
- 0.6%
Caterpillar Inc.COM$1,883,622,361
- Class
- COM
- Share
- 0.6%
ConocophillipsCOM$1,877,814,354
- Class
- COM
- Share
- 0.6%
Mckesson Corp.COM$1,856,409,681
- Class
- COM
- Share
- 0.6%
GE Vernova Inc.COM$1,844,396,038
- Class
- COM
- Share
- 0.6%
Nasdaq Inc.COM$1,834,194,725
- Class
- COM
- Share
- 0.6%
NXP Semiconductors N VCOM$1,822,088,150
- Class
- COM
- Share
- 0.6%
Union Pac Corp.COM$1,735,541,703
- Class
- COM
- Share
- 0.6%
Arista Networks Inc.COM SHS$1,712,787,940
- Class
- COM SHS
- Share
- 0.5%
Pg&e Corp.COM$1,711,931,504
- Class
- COM
- Share
- 0.5%
Progressive Corp.COM$1,665,190,116
- Class
- COM
- Share
- 0.5%
Humana Inc.COM$1,664,784,292
- Class
- COM
- Share
- 0.5%
Duke Energy Corp. NewCOM NEW$1,625,079,566
- Class
- COM NEW
- Share
- 0.5%
Ryanair Holdings PLCSPONSORED ADR$1,586,443,126
- Class
- SPONSORED ADR
- Share
- 0.5%
Micron Technology Inc.COM$1,576,786,396
- Class
- COM
- Share
- 0.5%
Philip Morris Intl Inc.COM$1,567,434,041
- Class
- COM
- Share
- 0.5%
Prologis Inc..COM$1,541,518,496
- Class
- COM
- Share
- 0.5%
American Express COCOM$1,535,128,955
- Class
- COM
- Share
- 0.5%
The share class is shown on a wider screen.
The 50 largest of 1,005 positions by value, with holdings of the same security combined. The 200 largest are in this firm's machine-readable record. Share counts and quarter-on-quarter changes for each position are on EDGAR. View the full information table on EDGAR
This filing
- Form
- 13F-HR
- CIK
- 912938
- File number
- 028-04968
- Options
- 1 call, 1 put
- In the 25 largest
- 35.2%
- Prior quarter
- $297,515,992,264 at 31 March 2026
- Positions opened
- 129
- Positions closed
- 70
Common questions
What are Massachusetts Financial Services’ 13F holdings worth?
$315,170,492,568 across 1,005 positions for the quarter ended 30 June 2026.
What is Massachusetts Financial Services’ largest 13F holding?
NVIDIA CORPORATION (COM) was the largest position at $13,660,451,307, or 4.3% of reported 13F value, as of 30 June 2026.
How concentrated is Massachusetts Financial Services’ 13F portfolio?
The ten largest positions accounted for 23.1% of reported value and the twenty-five largest for 35.2%, across 1,005 positions as of 30 June 2026.
Does Form 13F show everything Massachusetts Financial Services manages?
No. Form 13F covers only long positions in exchange-traded securities over which the manager has investment discretion, valued at quarter end. It excludes cash, most bonds, private funds, and any assets the firm does not have discretion over, so it is neither the firm's total assets nor any individual client's portfolio.
How often does Massachusetts Financial Services file its 13F?
Every quarter. Managers file within 45 days of each quarter's end, so the figures are a snapshot that changes between filings. This page shows the quarter ended 30 June 2026.
Answered from this filing and the prior quarter's.