Massachusetts Financial Services Co /ma/
About Massachusetts Financial Services Co /ma/’s 13F portfolio
Massachusetts Financial Services Co /ma/ is an institutional investment manager that discloses its US-listed holdings each quarter through an SEC Form 13F filing. As of , Massachusetts Financial Services Co /ma/ reported $315.2B across 1,003 US-listed positions (). Its largest position is NVIDIA CORPORATION (NVDA) at 4.3% of the reported book, and its ten biggest holdings make up 23% of the portfolio. Browse every manager in the fund managers directory, or see the legendary investors we track on the superinvestors page.
| # | Stock | Price | % of portfolio | Shares | Value |
|---|---|---|---|---|---|
| 1 |  NASDAQ: NVDA NVIDIA CORPORATION | $209.66 −1.59% | 4.3% | 62.5M | $13.7B |
| 2 |  NASDAQ: GOOGL ALPHABET INC | $342.00 −1.43% | 3.3% | 28.7M | $10.5B |
| 3 |  NASDAQ: AAPL APPLE INC | $313.45 +1.15% | 2.8% | 30.4M | $8.9B |
| 4 |  NASDAQ: AMZN AMAZON COM INC | $260.28 −0.30% | 2.8% | 32.1M | $8.8B |
| 5 |  NASDAQ: MSFT MICROSOFT CORP | $496.37 +0.95% | 2.8% | 20.4M | $8.8B |
| 6 |  NASDAQ: AVGO BROADCOM INC | $355.59 −0.32% | 1.7% | 12.1M | $5.5B |
| 7 |  NYSE: TSM TAIWAN SEMICONDUCTOR MANUFAC | $417.69 +0.07% | 1.5% | 9.5M | $4.7B |
| 8 |  NASDAQ: KLAC KLA CORP | $183.83 +0.27% | 1.4% | 14.7M | $4.5B |
| 9 |  NYSE: JPM JPMORGAN CHASE & CO | $356.50 −0.05% | 1.3% | 12.3M | $4.0B |
| 10 |  NASDAQ: LIN LINDE PLC | $490.33 +0.64% | 1.0% | 4.9M | $3.3B |
| 11 |  NYSE: UBS UBS GROUP AG | $54.52 +0.53% | 1.0% | 62.9M | $3.2B |
| 12 |  NYSE: CI THE CIGNA GROUP | $280.87 +0.55% | 0.9% | 10.4M | $2.9B |
| 13 |  NYSE: MA MASTERCARD INCORPORATED | $598.47 −0.15% | 0.9% | 5.4M | $2.8B |
| 14 |  NYSE: JNJ JOHNSON & JOHNSON | $270.00 −1.15% | 0.9% | 10.5M | $2.7B |
| 15 |  NYSE: MDT MEDTRONIC PLC | $92.02 +0.97% | 0.8% | 19.9M | $2.6B |
| 16 |  NYSE: AON AON PLC | $353.98 −0.24% | 0.8% | 7.6M | $2.6B |
| 17 |  NYSE: V VISA INC | $383.90 −0.06% | 0.8% | 3.7M | $2.5B |
| 18 |  NYSE: WAT WATERS CORP | $414.17 −0.07% | 0.8% | 4.6M | $2.5B |
| 19 |  NASDAQ: STX SEAGATE TECHNOLOGY HLDNGS PL | $846.37 +3.01% | 0.8% | 2.6M | $2.5B |
| 20 |  NYSE: BDX BECTON DICKINSON & CO | $190.21 +0.23% | 0.8% | 8.7M | $2.5B |
| 21 |  NYSE: FNV FRANCO NEV CORP | $267.37 −1.62% | 0.8% | 11.0M | $2.4B |
| 22 |  NYSE: TMO THERMO FISHER SCIENTIFIC INC | $633.71 +0.89% | 0.7% | 3.0M | $2.3B |
| 23 |  NASDAQ: WTW WILLIS TOWERS WATSON PLC LTD | $343.12 −1.07% | 0.7% | 5.5M | $2.3B |
| 24 |  NYSE: RTX RTX CORPORATION | $211.99 +0.81% | 0.7% | 11.7M | $2.2B |
| 25 |  NYSE: XOM EXXON MOBIL CORP | $158.19 −1.53% | 0.7% | 16.0M | $2.2B |
Showing 1–25 of 500 positions on this page — of 1,003 total reported in this 13F. Positions beyond the first 500 are not yet available on this page.
- Technology25%
- Financial Services17%
- Industrials12%
- Healthcare11%
- Consumer Cyclical7.6%
- Communication Services5.7%
- Basic Materials4.6%
- Utilities4.5%
- Energy3.8%
- Consumer Defensive2.8%
- Real Estate2.1%
- AddedGOOGLALPHABET INC+22.6%$10.5B
- AddedAAPLAPPLE INC+0.2%$8.9B
- AddedAMZNAMAZON COM INC+23.6%$8.8B
- AddedAVGOBROADCOM INC+34.6%$5.5B
- AddedKLACKLA CORP+794%$4.5B
- AddedLINLINDE PLC+3.5%$3.3B
- AddedSTXSEAGATE TECHNOLOGY HLDNGS PL+1.0%$2.5B
- AddedETNEATON CORP PLC+4.1%$2.1B
- AddedAEMAGNICO EAGLE MINES LTD+0.5%$1.9B
- AddedCATCATERPILLAR INC+10.4%$1.9B
- ReducedNVDANVIDIA CORPORATION−4.2%$13.7B
- ReducedMSFTMICROSOFT CORP−19.8%$8.8B
- ReducedTSMTAIWAN SEMICONDUCTOR MANUFAC−1.7%$4.7B
- ReducedJPMJPMORGAN CHASE & CO−16.3%$4.0B
- ReducedUBSUBS GROUP AG−4.0%$3.2B
- ReducedCITHE CIGNA GROUP−9.9%$2.9B
- ReducedMAMASTERCARD INCORPORATED−2.6%$2.8B
- ReducedJNJJOHNSON & JOHNSON−21.6%$2.7B
- ReducedMDTMEDTRONIC PLC−7.3%$2.6B
- ReducedAONAON PLC−8.9%$2.6B
Companies where this manager has disclosed a stake of more than 5% of a class of shares, as reported to the SEC on Schedule 13D (activist) or 13G (passive). Figures are as disclosed in each filing — tap a date to open the source document.
| # | Stock | Type | % of class | Shares | Filed |
|---|---|---|---|---|---|
| 1 |  HIW HIGHWOODS PROPERTIES, INC. | 13G | 5.7% | 6.1M | Filed 14 MAY 2025 |
Showing all 1 disclosed stakes. 1 last disclosed over a year ago (the holder may since have dropped below 5%).
Reading Massachusetts Financial Services Co /ma/’s 13F portfolio
Massachusetts Financial Services Co /ma/’s $315.2B 13F book is spread across 1,003 reported positions and is broadly diversified — the ten largest names are just 23% of the portfolio. Spread this wide across 1,003 names, no single position dominates, which is typical of large, index-oriented mandates that track broad market exposure. Its five largest positions are NVDA, GOOGL, AAPL, AMZN and MSFT, led by NVIDIA CORPORATION (NVDA) at 4.3% of the portfolio. The heaviest sector exposure is Technology (25%), then Financial Services (17%).
What Massachusetts Financial Services Co /ma/ changed last quarter
Between 2026-03-31 and Q2 2026, Massachusetts Financial Services Co /ma/ was roughly balanced between buying and selling: it opened 129 new positions and added to 371 more, while trimming 500 and closing 70 outright. Against a 1,003-name book, that is high turnover, pointing to an active reshuffle of the book. Its largest new or increased position was ALPHABET INC (GOOGL), and its biggest reduction was NVIDIA CORPORATION (NVDA).
What a 13F does and doesn’t reveal
A 13F captures only Massachusetts Financial Services Co /ma/’s long positions in US-listed stocks at a single quarter-end, so it is best read as a lagged snapshot rather than a live portfolio. It won’t show shorts, cash, bonds, or holdings listed outside the US, and it never reveals the price paid or the reasoning behind a trade. The signal is in the pattern over time: which names Massachusetts Financial Services Co /ma/ is building up, trimming, or exiting, and how concentrated the book stays from quarter to quarter.
Frequently asked questions
What is an SEC 13F filing?
A Form 13F is a report that every institutional investment manager with at least $100 million in US-listed securities must file with the SEC within 45 days of each quarter's end. It lists the manager's long positions in US-listed stocks and certain options, with the share count and market value of each. Massachusetts Financial Services Co /ma/'s profile on this page is built directly from those filings.
How current is the 13F data on Massachusetts Financial Services Co /ma/'s page?
It reflects Massachusetts Financial Services Co /ma/'s most recently filed 13F, currently the quarter ending Q2 2026. Because managers have up to 45 days after a quarter closes to file, a 13F is always a slightly lagged view rather than a live portfolio. When Massachusetts Financial Services Co /ma/ files its next quarterly report, this page refreshes automatically.
Can I see Massachusetts Financial Services Co /ma/'s complete list of holdings?
This page highlights Massachusetts Financial Services Co /ma/'s largest positions rather than all 1,003 names in the filing. The complete, position-by-position 13F is public and available from the SEC's EDGAR database under Massachusetts Financial Services Co /ma/'s filings.
Does a 13F show everything Massachusetts Financial Services Co /ma/ owns?
No. A 13F only covers long positions in US-listed stocks and certain options. It leaves out short positions, cash, bonds, commodities, foreign-listed stocks, and private holdings, so it is a partial view of Massachusetts Financial Services Co /ma/'s book rather than its full strategy or total assets.
Is 13F data investment advice?
No. Everything here is educational. 13F positions are disclosed with a delay, cover only long US-listed holdings, and never explain why Massachusetts Financial Services Co /ma/ made a trade or at what price. Treat it as a research lens, not a recommendation, and speak with a licensed financial advisor before making investment decisions.
Not investment advice. Holdings data comes from public SEC Form 13F filings, which are filed with a delay of up to 45 days and may be amended later. It describes historical, disclosed positions in US-listed securities only, meaning no shorts, cash, or foreign holdings, and it is not a recommendation. Always do your own research and speak with a licensed financial advisor before making investment decisions.