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MASSACHUSETTS FINANCIAL SERVICES CO /MA/ — 13F Holdings & Portfolio

CIK 912938 · latest 13F-HR filed 2026-08-03

Backtest portfolio

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ manages $315.17B in 13F-reported U.S. long-equity assets across 4,175 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are NVDA (3.21%), GOOGL (2.60%), AAPL (2.25%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 129 new positions, exited 70, added to 437, and trimmed 303.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

Filer Information
Address
111 HUNTINGTON AVENUE
24TH FLOOR
BOSTON, MA 02199
Phone
+1 (800) 637-2929
Filing Manager
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
Boston, MA
Signatory
Deepu Pylee
Compliance Director
Loading holdings…
AUM

$315.17B

Long-equity book

Holdings

4,175

Distinct positions

Period

2026-06-30

Filed 2026-08-03

Q/Q Activity

+129 / −70 / ↑437 / ↓303

vs 2026-03-31

Firm Profile & Key People
Name Title / Status Ownership Type

Top Adds (vs prior quarter)

  • ALPHABET INC$3.57B +51.3%
  • AMAZON COM INC$2.28B +34.7%
  • NVIDIA CORPORATION$2.10B +18.1%
  • BROADCOM INC$2.04B +59.6%
  • KLA CORP$2.03B +83.2%
Show all 437 →

Top Trims

  • ACCENTURE PLC IRELAND-$2.12B -84.0%
  • MICROSOFT CORP-$1.91B -17.9%
  • GE AEROSPACE-$866.3M -96.1%
  • EXXON MOBIL CORP-$860.8M -28.2%
  • CONOCOPHILLIPS-$815.8M -30.3%
Show all 303 →

New Positions

  • HONEYWELL INTL INC$1.41B
  • HONEYWELL AEROSPACE INC$1.38B
  • SPACE EXPLORATION TECHN CORP$1.22B
  • ASCENDIS PHARMA A/S$500.1M
  • REVOLUTION MEDICINES INC$376.8M
Show all 129 →

Exited Positions

  • HONEYWELL INTL INC$2.52B
  • APTIV PLC$475.7M
  • ASCENDIS PHARMA A/S$425.6M
  • MASIMO CORP$416.7M
  • CARNIVAL CORP$153.1M
Show all 70 →
All Holdings

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 NVIDIA CORPORATION NVDA 67066G104 $10.12B 3.21% 50,554,430 SH
2 ALPHABET INC GOOGL 02079K305 $8.19B 2.60% 22,905,583 SH
3 APPLE INC AAPL 037833100 $7.10B 2.25% 24,539,094 SH
4 MICROSOFT CORP MSFT 594918104 $5.70B 1.81% 15,280,653 SH
5 AMAZON COM INC AMZN 023135106 $5.67B 1.80% 23,775,466 SH
6 BROADCOM INC AVGO 11135F101 $3.55B 1.13% 9,409,023 SH
7 KLA CORP KLAC 482480100 $3.53B 1.12% 11,710,734 SH
8 TAIWAN SEMICONDUCTOR MANUFAC TSM 874039100 $3.25B 1.03% 6,802,456 SH
9 JPMORGAN CHASE & CO JPM 46625H100 $3.16B 1.00% 9,641,784 SH
10 MASTERCARD INCORPORATED MA 57636Q104 $2.22B 0.70% 4,321,578 SH
11 JOHNSON & JOHNSON JNJ 478160104 $2.02B 0.64% 7,957,817 SH
12 THE CIGNA GROUP CI 125523100 $2.01B 0.64% 7,297,478 SH
13 SEAGATE TECHNOLOGY HLDNGS PL STX G7997R103 $1.96B 0.62% 2,026,788 SH
14 UBS GROUP AG UBS H42097107 $1.83B 0.58% 36,913,528 SH
15 RTX CORPORATION RTX 75513E101 $1.79B 0.57% 9,415,517 SH
16 AON PLC AON G0403H108 $1.73B 0.55% 5,201,846 SH
17 LINDE PLC LIN G54950103 $1.71B 0.54% 3,287,412 SH
18 META PLATFORMS INC META 30303M102 $1.65B 0.52% 2,929,835 SH
19 FRANCO NEV CORP FNV 351858105 $1.64B 0.52% 7,866,750 SH
20 EXXON MOBIL CORP XOM 30231G102 $1.64B 0.52% 11,968,933 SH
21 ANALOG DEVICES INC ADI 032654105 $1.64B 0.52% 4,117,047 SH
22 EATON CORP PLC ETN G29183103 $1.60B 0.51% 3,750,940 SH
23 AMAZON COM INC AMZN 023135106 $1.59B 0.51% 2,401,847 SH
24 MORGAN STANLEY MS 617446448 $1.53B 0.48% 7,310,395 SH
25 CATERPILLAR INC CAT 149123101 $1.49B 0.47% 1,401,836 SH
26 GE VERNOVA INC GEV 36828A101 $1.49B 0.47% 1,265,054 SH
27 MICROSOFT CORP MSFT 594918104 $1.47B 0.47% 1,396,283 SH
28 CHUBB LIMITED CB H1467J104 $1.45B 0.46% 4,249,796 SH
29 NASDAQ INC NDAQ 631103108 $1.45B 0.46% 18,342,356 SH
30 AMPHENOL CORP APH 032095101 $1.41B 0.45% 8,010,722 SH
31 NVIDIA CORPORATION NVDA 67066G104 $1.38B 0.44% 2,460,782 SH
32 MCKESSON CORP MCK 58155Q103 $1.37B 0.43% 1,811,980 SH
33 PG&E CORP PCG 69331C108 $1.36B 0.43% 80,860,387 SH
34 CONOCOPHILLIPS COP 20825C104 $1.35B 0.43% 12,946,218 SH
35 NXP SEMICONDUCTORS N V NXPI N6596X109 $1.33B 0.42% 4,745,374 SH
36 MICRON TECHNOLOGY INC MU 595112103 $1.32B 0.42% 1,145,861 SH
37 PROGRESSIVE CORP PGR 743315103 $1.32B 0.42% 6,026,375 SH
38 ARISTA NETWORKS INC ANET 040413205 $1.30B 0.41% 7,648,646 SH
39 BECTON DICKINSON & CO BDX 075887109 $1.30B 0.41% 1,152,058 SH
40 VISA INC V 92826C839 $1.27B 0.40% 375,876 SH
41 UNION PAC CORP UNP 907818108 $1.23B 0.39% 4,513,807 SH
42 AGNICO EAGLE MINES LTD AEM 008474108 $1.22B 0.39% 7,880,389 SH
43 DUKE ENERGY CORP NEW DUK 26441C204 $1.22B 0.39% 9,652,851 SH
44 ADVANCED MICRO DEVICES INC AMD 007903107 $1.20B 0.38% 2,061,753 SH
45 TRAVELERS COMPANIES INC TRV 89417E109 $1.19B 0.38% 3,619,408 SH
46 CITIGROUP INC C 172967424 $1.19B 0.38% 8,499,339 SH
47 PHILIP MORRIS INTL INC PM 718172109 $1.19B 0.38% 6,554,228 SH
48 MEDTRONIC PLC MDT G5960L103 $1.18B 0.38% 2,485,683 SH
49 PNC FINL SVCS GROUP INC PNC 693475105 $1.18B 0.37% 4,785,289 SH
50 TEXAS INSTRS INC TXN 882508104 $1.18B 0.37% 3,946,603 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-03 $315.17B 4,175 0000912938-26-000775
2026-03-31 2026-05-14 $297.52B 3,996 0000912938-26-000604
2025-12-31 2026-01-22 $310.12B 3,918 0000912938-26-000025
2025-09-30 2025-10-29 $322.80B 3,802 0000912938-25-000200