DOSSIER · 13F-HR · Q2 2026

MASSACHUSETTS FINANCIAL SERVICES CO /MA/

$315.2B in tracked AUM across 4,175 positions as of Q2 2026.

MF

CIK 0000912938 · last filed Jun 30, 2026

Total AUM

$315.2B

as of Q2 2026

Holdings

4,175

—

positions

Whale Score

68

68

tracked

Activity

—

no data

changes this Q

AI Analysis · Q2 2026

Massachusetts Financial Services (MFS) reported $297.5B in Q1 2026, down from $310.1B, with reductions far outnumbering additions — 36 positions decreased versus just 6 increased. Microsoft (-$2.4B), Nvidia (-$959M), and Alphabet (-$929M) led the trims among anchors Nvidia (3.89%), Microsoft (3.59%), and Apple (2.64%). Against the broad pruning, MFS added to Broadcom (+$628M), Apple (+$536M), and gold miner Agnico Eagle (+$519M). New positions opened in RTX, Honeywell, Visa, Schwab, Waters, and Dominion Energy; KKR and American Express were sold.

Analysis generated by 13F Insight from SEC Form 13F filing data · Q2 2026. Methodology

Quarter at a glance — Q2 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q2 2026.

#HoldingValueSharesWeight

NVIDIA CORPORATION

$13.7B62.5M4.3%02

$10.5B28.7M3.3%03

$8.9B30.4M2.8%04

$8.8B32.1M2.8%05

$8.8B20.4M2.8%06

$5.5B12.1M1.7%07

TAIWAN SEMICONDUCTOR MANUFAC

$4.7B9.5M1.5%08

$4.5B14.7M1.4%09

JPMORGAN CHASE & CO

$4.0B12.3M1.3%10

Filing history

$315.2B▲ 5.9%

4,175 positionsView →2026Q1Mar 31

$297.5B▼ 4.1%

3,996 positionsView →2025Q4Dec 31

$310.1B▼ 3.9%

3,918 positionsView →2025Q3Sep 30

$322.8B▲ 2.4%

3,802 positionsView →2025Q2Jun 30

$315.1B▲ 4.7%

3,634 positionsLocked 2025Q1Mar 31

$300.8B▼ 5.1%

3,631 positionsLocked 2024Q4Dec 31

$316.9B▼ 5.4%

3,379 positionsLocked 2024Q3Sep 30

$334.8B▲ 2.9%

3,250 positionsLocked 2024Q2Jun 30

$325.3B▼ 2.8%

3,274 positionsLocked 2024Q1Mar 31

$334.7B▲ 8.1%

3,242 positionsLocked 2023Q4Dec 31

$309.6B▲ 8.4%

3,283 positionsLocked 2023Q3Sep 30

$285.6B▼ 6.2%

3,323 positionsLocked

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