Massachusetts Financial Services Co
13F filer · CIK 0000912938Reported Aug 3, 2026
Net seller this quarter
13F portfolio value$315.2BU.S. long equity reported on 13F
Positions984119 new · 64 closed
Net flow last quarter-$14BBuys minus sells
Top 10 positions weight23.1%Concentration
Holdings
13F · last 4 quarters freeScroll for earlier quarters
| Company | Value | % of portfolio | % of company | POSITION CHANGE qoq % | First reported |
|---|---|---|---|---|---|
| Q2 2026Reported Aug 3, 2026984 positions | |||||
| $13.7B | 4.33% | 0.26% | -4.2% | Q3 2015 | |
| $10.5B | 3.34% | 0.23% | +22.6% | Q4 2015 | |
| $8.93B | 2.83% | 0.21% | +0.2% | Q2 2014 | |
| $8.85B | 2.81% | 0.30% | +23.6% | Q2 2014 | |
| $8.76B | 2.78% | 0.28% | -19.8% | Q2 2014 | |
| $5.46B | 1.73% | 0.25% | +34.6% | Q1 2016 | |
| $4.73B | 1.50% | 0.04% | -1.7% | Q2 2014 | |
| $4.47B | 1.42% | 1.12% | -10.7% | Q2 2014 | |
| $4.03B | 1.28% | 0.46% | -16.3% | Q2 2014 | |
| $3.25B | 1.03% | 1.07% | +3.5% | Q4 2018 | |
| $3.2B | 1.01% | 1.88% | -4.0% | Q3 2015 | |
| $2.9B | 0.92% | 3.95% | -9.9% | Q3 2015 | |
| $2.82B | 0.90% | 0.44% | -2.6% | Q2 2014 | |
| $2.7B | 0.86% | 0.44% | -21.6% | Q2 2014 | |
| $2.61B | 0.83% | 1.55% | -7.3% | Q2 2014 | |
| $2.58B | 0.82% | 3.57% | -8.9% | Q2 2014 | |
| $2.54B | 0.81% | 0.20% | -10.1% | Q2 2014 | |
| $2.53B | 0.80% | 4.71% | -0.1% | Q2 2014 | |
| $2.51B | 0.80% | 1.14% | +1.0% | Q3 2015 | |
| $2.48B | 0.79% | 3.18% | -5.0% | Q1 2016 | |
| $2.37B | 0.75% | 5.73% | -0.4% | Q1 2016 | |
| $2.28B | 0.72% | 0.80% | -1.6% | Q2 2014 | |
| $2.26B | 0.72% | 5.81% | -6.4% | Q2 2016 | |
| $2.24B | 0.71% | 0.87% | -17.0% | Q2 2020 | |
| $2.19B | 0.69% | 0.39% | -10.8% | Q2 2014 | |
| $2.15B | 0.68% | 1.11% | -13.1% | Q2 2014 | |
| $2.13B | 0.68% | 0.77% | -8.0% | Q2 2014 | |
| $2.12B | 0.67% | 1.26% | +4.1% | Q2 2014 | |
| $2.07B | 0.66% | Not reported | -18.3% | Q2 2014 | |
| $2.03B | 0.64% | 1.53% | -9.6% | Q2 2014 | |
| $1.93B | 0.61% | 0.86% | -24.7% | Q2 2014 | |
| $1.92B | 0.61% | 2.38% | +0.5% | Q2 2014 | |
| $1.92B | 0.61% | 0.59% | -21.6% | Q2 2014 | |
| $1.88B | 0.60% | 0.38% | +10.4% | Q2 2014 | |
| $1.88B | 0.60% | 1.50% | -11.3% | Q4 2017 | |
| $1.86B | 0.59% | 2.04% | -15.7% | Q2 2014 | |
| $1.84B | 0.59% | 0.58% | -4.8% | Q2 2024 | |
| $1.83B | 0.58% | 4.14% | -20.0% | Q2 2014 | |
| $1.82B | 0.58% | 2.56% | -14.7% | Q2 2014 | |
| $1.74B | 0.55% | 1.06% | -10.8% | Q2 2014 | |
| $1.71B | 0.54% | 0.77% | +34.6% | Q2 2022 | |
| $1.71B | 0.54% | 4.61% | -7.2% | Q2 2014 | |
| $1.67B | 0.53% | 1.31% | -36.7% | Q1 2018 | |
| $1.66B | 0.53% | 2.98% | -20.2% | Q2 2017 | |
| DEDUKDuke Energy CORP | $1.63B | 0.52% | 1.63% | -11.5% | Q2 2014 |
| $1.59B | 0.50% | 2.30% | -0.2% | Q3 2017 | |
| $1.58B | 0.50% | 0.12% | +2109.3% | Q4 2020 | |
| $1.57B | 0.50% | 0.55% | -0.7% | Q2 2014 | |
| $1.54B | 0.49% | 1.20% | -20.2% | Q2 2017 | |
| $1.54B | 0.49% | 0.66% | -11.8% | Q2 2014 | |
| Q1 2026Reported May 14, 2026927 positions | |||||
| $11.6B | 3.89% | 0.27% | -2.8% | Q3 2015 | |
| $10.7B | 3.59% | 0.34% | -5.9% | Q2 2014 | |
| $7.85B | 2.64% | 0.21% | +12.7% | Q2 2014 | |
| $6.95B | 2.34% | 0.19% | -7.1% | Q4 2015 | |
| $6.57B | 2.21% | 0.24% | -8.6% | Q2 2014 | |
| $4.33B | 1.46% | 0.55% | -5.5% | Q2 2014 | |
| $3.42B | 1.15% | 0.19% | +11.3% | Q1 2016 | |
| $3.4B | 1.14% | 0.04% | -4.6% | Q2 2014 | |
| $3.32B | 1.11% | 0.56% | -18.0% | Q2 2014 | |
| $3.11B | 1.05% | 4.40% | -1.8% | Q3 2015 | |
| $3.05B | 1.02% | 0.43% | -6.9% | Q2 2014 | |
| $3.02B | 1.02% | 1.03% | -7.0% | Q4 2018 | |
| $2.82B | 0.95% | 0.45% | -6.0% | Q2 2014 | |
| $2.82B | 0.95% | 5.75% | -5.1% | Q1 2016 | |
| $2.75B | 0.93% | 1.05% | -0.1% | Q2 2020 | |
| $2.75B | 0.92% | 3.90% | -2.2% | Q2 2014 | |
| $2.69B | 0.91% | 1.66% | -9.3% | Q4 2017 | |
| $2.66B | 0.89% | 1.67% | +2.3% | Q2 2014 | |
| $2.6B | 0.87% | 1.96% | -4.5% | Q3 2015 | |
| $2.58B | 0.87% | 6.21% | -1.8% | Q2 2016 | |
| $2.57B | 0.86% | Not reported | -8.6% | Q2 2014 | |
| $2.53B | 0.85% | 2.37% | -15.8% | Q2 2014 | |
| $2.52B | 0.85% | 1.54% | -8.1% | Q2 2014 | |
| $2.52B | 0.85% | 1.37% | +27.2% | Q2 2014 | |
| $2.5B | 0.84% | 2.37% | +1.7% | Q2 2014 | |
| $2.47B | 0.83% | 5.15% | +5.2% | Q2 2014 | |
| $2.44B | 0.82% | 1.25% | -5.7% | Q2 2014 | |
| $2.4B | 0.81% | 2.07% | -5.3% | Q1 2018 | |
| $2.33B | 0.78% | 0.22% | -8.2% | Q2 2014 | |
| $2.25B | 0.76% | 0.83% | -5.5% | Q2 2014 | |
| $2.25B | 0.76% | 0.81% | -2.4% | Q2 2014 | |
| $2.22B | 0.75% | 3.30% | -4.1% | Q1 2016 | |
| $2.15B | 0.72% | 1.68% | -5.4% | Q2 2014 | |
| $2.06B | 0.69% | 4.72% | +76.4% | Q2 2014 | |
| $1.99B | 0.67% | 1.27% | -21.3% | Q2 2014 | |
| $1.98B | 0.66% | 2.11% | -9.0% | Q2 2014 | |
| $1.93B | 0.65% | 0.74% | -5.7% | Q2 2014 | |
| $1.93B | 0.65% | 4.97% | -5.4% | Q2 2014 | |
| DEDUKDuke Energy CORP | $1.9B | 0.64% | 1.85% | -10.3% | Q2 2014 |
| $1.88B | 0.63% | 1.51% | -6.2% | Q2 2017 | |
| $1.83B | 0.62% | 1.14% | -12.2% | Q2 2014 | |
| $1.78B | 0.60% | 1.90% | -22.3% | Q4 2020 | |
| $1.74B | 0.59% | 1.18% | -7.6% | Q2 2014 | |
| $1.74B | 0.58% | 1.11% | -9.7% | Q2 2014 | |
| $1.71B | 0.58% | 1.21% | -14.8% | Q2 2014 | |
| $1.64B | 0.55% | 3.03% | -4.8% | Q2 2014 | |
| $1.62B | 0.54% | 1.00% | +1.9% | Q2 2014 | |
| $1.61B | 0.54% | 0.89% | +6.8% | Q2 2014 | |
| $1.6B | 0.54% | 6.82% | -15.4% | Q4 2017 | |
| $1.59B | 0.53% | 1.87% | -11.8% | Q2 2014 | |
| Q4 2025Reported Jan 22, 2026891 positions | |||||
| $13.1B | 4.22% | 0.36% | -10.7% | Q2 2014 | |
| $12.5B | 4.04% | 0.28% | -6.4% | Q3 2015 | |
| $7.88B | 2.54% | 0.21% | +6.4% | Q4 2015 | |
| $7.31B | 2.36% | 0.18% | -5.2% | Q2 2014 | |
| $6.55B | 2.11% | 0.26% | +0.3% | Q2 2014 | |
| $5B | 1.61% | 0.58% | -5.5% | Q2 2014 | |
| $3.39B | 1.09% | 0.68% | -6.7% | Q2 2014 | |
| $3.35B | 1.08% | 0.48% | -5.9% | Q2 2014 | |
| $3.25B | 1.05% | 4.48% | +8.3% | Q3 2015 | |
| $3.18B | 1.03% | Not reported | -37.1% | Q2 2014 | |
| $3.18B | 1.02% | 2.05% | -11.3% | Q3 2015 | |
| $3.08B | 0.99% | 0.04% | -35.6% | Q2 2014 | |
| $3.02B | 0.97% | 3.98% | -2.4% | Q2 2014 | |
| $2.91B | 0.94% | 2.18% | +0.2% | Q1 2018 | |
| $2.87B | 0.93% | 1.68% | +5.4% | Q2 2014 | |
| $2.83B | 0.91% | 2.79% | -12.2% | Q2 2014 | |
| $2.79B | 0.90% | 0.17% | -5.3% | Q1 2016 | |
| $2.68B | 0.87% | 4.85% | +4.8% | Q2 2014 | |
| $2.64B | 0.85% | 1.83% | +21398.0% | Q4 2022 | |
| $2.6B | 0.84% | 1.06% | -10.8% | Q2 2020 | |
| $2.42B | 0.78% | 6.06% | +0.2% | Q1 2016 | |
| $2.38B | 0.77% | 2.09% | -4.4% | Q3 2021 | |
| $2.32B | 0.75% | 0.46% | -1.5% | Q2 2014 | |
| $2.21B | 0.71% | 0.79% | -7.4% | Q2 2014 | |
| $2.18B | 0.70% | 1.10% | -1.5% | Q4 2018 | |
| $2.15B | 0.69% | 1.30% | -14.2% | Q2 2014 | |
| $2.15B | 0.69% | 1.76% | -4.3% | Q2 2014 | |
| $2.15B | 0.69% | 0.85% | -10.6% | Q2 2014 | |
| $2.14B | 0.69% | 1.61% | -6.4% | Q2 2014 | |
| $2.11B | 0.68% | 1.32% | -7.4% | Q2 2014 | |
| $2.11B | 0.68% | 2.32% | -1.1% | Q2 2014 | |
| $2.1B | 0.68% | 0.96% | +0.8% | Q2 2014 | |
| $2.09B | 0.67% | 1.81% | -3.8% | Q4 2017 | |
| $2.01B | 0.65% | 1.63% | -0.7% | Q2 2014 | |
| $2.01B | 0.65% | 2.44% | -15.6% | Q4 2020 | |
| $1.98B | 0.64% | 2.33% | -0.3% | Q2 2014 | |
| $1.96B | 0.63% | 6.24% | -3.3% | Q2 2016 | |
| $1.94B | 0.63% | 2.53% | -6.0% | Q3 2017 | |
| $1.93B | 0.62% | 4.99% | +13.8% | Q3 2014 | |
| $1.91B | 0.62% | 1.61% | -7.8% | Q2 2017 | |
| DEDUKDuke Energy CORP | $1.88B | 0.61% | 2.06% | -4.9% | Q2 2014 |
| $1.86B | 0.60% | 5.26% | -6.3% | Q2 2014 | |
| $1.84B | 0.59% | 3.33% | +3.7% | Q1 2016 | |
| $1.82B | 0.59% | 0.84% | -3.8% | Q2 2014 | |
| $1.79B | 0.58% | 0.82% | +5.1% | Q2 2014 | |
| $1.78B | 0.57% | 2.18% | -0.9% | Q2 2014 | |
| $1.77B | 0.57% | 0.85% | -7.5% | Q2 2014 | |
| $1.76B | 0.57% | 1.28% | -5.0% | Q2 2014 | |
| $1.75B | 0.57% | 1.42% | -24.5% | Q2 2014 | |
| $1.7B | 0.55% | 3.12% | +1.6% | Q2 2014 | |
| Q3 2025Reported Oct 29, 2025836 positions | |||||
| $15.7B | 4.87% | 0.41% | +0.8% | Q2 2014 | |
| $13.4B | 4.15% | 0.30% | +25.0% | Q3 2015 | |
| $7.23B | 2.24% | 0.19% | +13.0% | Q2 2014 | |
| $6.22B | 1.93% | 0.26% | -6.8% | Q2 2014 | |
| $5.76B | 1.78% | 0.20% | -9.7% | Q4 2015 | |
| $5.64B | 1.75% | Not reported | -14.6% | Q2 2014 | |
| $5.18B | 1.60% | 0.60% | -5.5% | Q2 2014 | |
| $4.4B | 1.36% | 0.06% | +3.6% | Q2 2014 | |
| $3.55B | 1.10% | 0.51% | -2.1% | Q2 2014 | |
| $3.26B | 1.01% | 0.73% | -2.5% | Q2 2014 | |
| $3.17B | 0.98% | 2.23% | +21.0% | Q3 2015 | |
| $3.15B | 0.98% | 2.18% | -1.2% | Q1 2018 | |
| $3.14B | 0.97% | 4.08% | -7.4% | Q3 2015 | |
| $3.12B | 0.97% | 4.06% | -2.2% | Q2 2014 | |
| $3.03B | 0.94% | 3.16% | -1.5% | Q2 2014 | |
| $2.81B | 0.87% | 0.18% | +41.6% | Q1 2016 | |
| $2.73B | 0.85% | 1.88% | -10.5% | Q2 2014 | |
| $2.66B | 0.82% | 1.18% | -0.6% | Q2 2020 | |
| $2.6B | 0.81% | 6.06% | -0.3% | Q1 2016 | |
| $2.53B | 0.79% | 2.19% | -1.7% | Q3 2021 | |
| $2.5B | 0.78% | 1.59% | +12.8% | Q2 2014 | |
| $2.47B | 0.76% | 1.11% | -21.0% | Q4 2018 | |
| $2.33B | 0.72% | 4.60% | -3.3% | Q2 2014 | |
| $2.29B | 0.71% | 1.52% | -7.9% | Q2 2014 | |
| $2.28B | 0.71% | 2.88% | -17.4% | Q4 2020 | |
| $2.2B | 0.68% | 0.46% | -1.0% | Q2 2014 | |
| $2.2B | 0.68% | 1.88% | -1.1% | Q4 2017 | |
| $2.16B | 0.67% | 2.35% | -1.8% | Q2 2014 | |
| $2.16B | 0.67% | 0.94% | -11.8% | Q2 2014 | |
| $2.14B | 0.66% | 0.85% | -1.9% | Q2 2014 | |
| $2.14B | 0.66% | 6.34% | -0.9% | Q2 2016 | |
| DEDUKDuke Energy CORP | $2.09B | 0.65% | 2.17% | -1.8% | Q2 2014 |
| $2.07B | 0.64% | 1.71% | -3.1% | Q2 2014 | |
| $2.07B | 0.64% | 1.27% | -2.1% | Q2 2014 | |
| $2.04B | 0.63% | 1.43% | -12.0% | Q3 2018 | |
| $2.03B | 0.63% | 1.82% | -1.3% | Q2 2014 | |
| $2.03B | 0.63% | 1.42% | -0.5% | Q2 2014 | |
| $2.02B | 0.63% | 0.87% | +5.8% | Q2 2014 | |
| $2.01B | 0.62% | 1.64% | +0.5% | Q2 2014 | |
| $1.97B | 0.61% | 2.33% | +5.4% | Q2 2014 | |
| $1.94B | 0.60% | 0.47% | -3.0% | Q2 2014 | |
| $1.91B | 0.59% | 1.93% | -2.1% | Q2 2019 | |
| $1.89B | 0.59% | 1.35% | -1.4% | Q2 2014 | |
| $1.88B | 0.58% | 1.80% | -2.6% | Q1 2016 | |
| $1.87B | 0.58% | 1.95% | +16.0% | Q3 2015 | |
| $1.86B | 0.58% | 1.75% | -1.5% | Q2 2017 | |
| $1.86B | 0.58% | 5.62% | +0.7% | Q2 2014 | |
| $1.86B | 0.58% | 0.29% | -35.6% | Q2 2014 | |
| $1.76B | 0.55% | 3.37% | -1.4% | Q2 2014 | |
| $1.76B | 0.55% | 3.07% | -6.2% | Q2 2014 | |
Premium opens every quarter this fund has filed