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MASSACHUSETTS FINANCIAL SERVICES CO /MA/

Institutional InvestorSimilar funds →SEC EDGAR: CIK 912938
Institutional-grade research for retail investors

Sector Allocation

  • Technology31.4%$98.9B
  • Financials17.7%$55.7B
  • Industrials11.4%$36.0B
  • Healthcare10.9%$34.2B
  • Consumer Discretionary7.1%$22.5B
  • Materials6.0%$18.8B
  • Utilities4.7%$14.8B
  • Energy4.0%$12.7B
  • Consumer Staples3.0%$9.6B
  • Real Estate2.4%$7.5B

AUM History

13fpro.ai/research/fund/massachusetts-financial-services-co-ma-912938

Conviction and streaks

Concentrating · top 10 = 23.1%

From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.

NVDA$NVDAConviction hold4.3% weight · held 7 quartersGOOG$GOOGConviction hold3.3% weight · held 7 quartersAAPL$AAPLConviction hold2.8% weight · held 7 quartersAMZN$AMZNConviction hold2.8% weight · held 7 quartersMSFT$MSFTConviction hold2.8% weight · held 7 quartersTKO$TKOAccumulating+939% shares · 7 quarters runningBC$BCAccumulating+60% shares · 7 quarters runningPNR$PNRAccumulating+203% shares · 7 quarters runningBTI$BTIAccumulating+585% shares · 7 quarters runningRIO$RIOAccumulating+223% shares · 7 quarters runningJPM$JPMTrimming-57% shares · 7 quarters runningAON$AONTrimming-38% shares · 7 quarters runningV$VTrimming-81% shares · 7 quarters runningADI$ADITrimming-64% shares · 7 quarters runningSCHW$SCHWTrimming-57% shares · 7 quarters running

Largest positions — Q2 2026

Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.

13fpro.ai/research/fund/massachusetts-financial-services-co-ma-912938

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 13F holdings — Q2 2026

$315.2B portfolio (+5.9% QoQ) · 1,005 holdings · Q2 2026 13F · top 10 are 23% of the stock portfolio

Includes $15.4M of put/call options ($173K puts, $15.2M calls), which 13F rules report at the value of the underlying shares, not the premium at risk. Stocks alone: $315.2B. Weights use the stock portfolio.

All holdings — MASSACHUSETTS FINANCIAL SERVICES CO /MA/ (Q2 2026)

1,005 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated. The page lists up to 1,000; every position is in the Excel export.

Company
UBS$UBSUBS Group AG$3.2B-4%
CI$CICigna Group$2.9B-10%
MA$MAMastercard Inc$2.8B-3%
JNJ$JNJJOHNSON & JOHNSON$2.7B-22%
MDT$MDTMedtronic plc$2.6B-7%
AON$AONAon plc$2.6B-9%
V$VVISA INC.$2.5B-10%
WAT$WATWATERS CORP /DE/$2.5B-0.1%
STX$STXSeagate Technology Holdings plc$2.5B+1.0%
BDX$BDXBECTON DICKINSON & CO$2.5B-5%
FNV$FNVFRANCO NEVADA Corp$2.4B-0.4%
TMO$TMOTHERMO FISHER SCIENTIFIC INC.$2.3B-2%
WTW$WTWWILLIS TOWERS WATSON PLC$2.3B-6%
RTX$RTXRTX Corp$2.2B-17%
XOM.R34088$XOM.R34088EXXON MOBIL CORP$2.2B-11%

What changed in Q2 2026

Against the previous quarter's 13F: 124 new, 372 added to, 505 trimmed, 66 sold out. Share-count changes; largest moves by dollar size first.

New positions (124)

  • HONA$HONAHoneywell Aerospace Inc.$1.4B

    first bought this quarter

  • SPCX$SPCXSPACE EXPLORATION TECHNOLOGIES CORP$1.2B

    first bought this quarter

  • RVMD$RVMDRevolution Medicines, Inc.$376.8M

    first bought this quarter

  • WMB$WMBWILLIAMS COMPANIES, INC.$354.2M

    first bought this quarter

  • HPE$HPEHewlett Packard Enterprise Co$211.0M

    first bought this quarter

  • INIO$INIOINNIO N.V.$197.8M

    first bought this quarter

+118 more in the Excel export

Added to (372)

  • KLAC$KLACKLA CORP+794%

    now $4.5B · held 7+ qtrs

  • GOOGL$GOOGLAlphabet Inc.+23%

    now $10.5B · held 7+ qtrs

  • AMZN$AMZNAMAZON COM INC+24%

    now $8.8B · held 7+ qtrs

  • MU$MUMICRON TECHNOLOGY INC+2109%

    now $1.6B · held 7+ qtrs, 4 adds in a row

  • AVGO$AVGOBroadcom Inc.+35%

    now $5.5B · held 7+ qtrs, 2 adds in a row

  • AMD$AMDADVANCED MICRO DEVICES INC+301%

    now $1.4B · held 4 qtrs, 4 adds in a row

+366 more in the Excel export

Trimmed (505)

  • MSFT$MSFTMICROSOFT CORP-20%

    now $8.8B · held 7+ qtrs, 3 trims in a row

  • CNI$CNICANADIAN NATIONAL RAILWAY CO-62%

    now $784.1M · held 7+ qtrs, 5 trims in a row

  • GE$GEGENERAL ELECTRIC CO-97%

    now $35.6M

  • HON$HONHONEYWELL INTERNATIONAL INC-42%

    now $1.4B · held 7+ qtrs

  • PGR$PGRPROGRESSIVE CORP/OH/-37%

    now $1.7B · held 7+ qtrs, 2 trims in a row

  • LRCX$LRCXLAM RESEARCH CORP-63%

    now $540.3M · held 7+ qtrs, 3 trims in a row

+499 more in the Excel export

Sold out (66)

  • APTIV PLCwas $475.7M
  • MASI$MASIMASIMO CORPwas $416.7M

    held 6+ qtrs

  • CCL$CCLCarnival Corp Ltd.was $153.1M

    held 6+ qtrs

  • RVTY$RVTYREVVITY, INC.was $93.4M
  • HII$HIIHUNTINGTON INGALLS INDUSTRIES, INC.was $91.9M
  • GEHC$GEHCGE HealthCare Technologies Inc.was $89.8M

+60 more in the Excel export

Firm AUM (Form ADV): $514.1B as of 2025-12-31 · SEC IAPD

Share

Holdings by quarter

Every 13F MASSACHUSETTS FINANCIAL SERVICES CO /MA/ has filed, 36 earlier quarters. Pick one to see what it held then.

Email me the moment this fund files its next 13FPro

Is it too late to follow MASSACHUSETTS FINANCIAL SERVICES?

Q2 2026 13F filed with the SEC on Aug 3, 2026. Prices are closing prices as of Oct 26, 2026.

Average quality of MASSACHUSETTS FINANCIAL SERVICES's top 20 holdings: 77/100 (our AI quality score, weighted by position size; 15 of the 20 are scored)

Top 10 since filing

-2.2%

Value-weighted move of the 10 largest stock positions

Turnover

9%

Last quarter; 25% over the last 4

Top 10 weight

23%

Share of the stock portfolio in its 10 largest positions

Held 4+ quarters

95%

Share of portfolio value in positions held a year or more

Highest-quality names it owns(among its 100 largest positions)

The 8 highest-scoring companies in this portfolio are a Pro feature.

How these are measured
  • Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
  • Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
  • Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q4 2024 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
  • Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
  • Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.

Portfolio Overview

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ disclosed 1,005 positions worth $315.2B in its Form 13F-HR for Q2 2026 — $315.2B in common stock plus $15.4M of put/call option positions (reported at underlying notional value, not premium at risk), led by $NVDA (NVIDIA CORP) at 4.3% of the equity portfolio, followed by $GOOGL and $AAPL. During the quarter the fund opened 124 new positions and exited 66 — including a new stake in $HONA. The portfolio is most concentrated in Technology (31.4% of disclosed assets). All figures are sourced directly from MASSACHUSETTS FINANCIAL SERVICES CO /MA/’s Form 13F-HR filing with the SEC under CIK 912938.

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Every holding in MASSACHUSETTS FINANCIAL SERVICES CO /MA/'s portfolio is scored on an AI quality ranking built from its SEC filings (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.