§ 13F · FUND PROFILE
MASSACHUSETTS FINANCIAL SERVICES CO /MA/.
MFS, long-term fundamental investing
AUM · $322.8B (13F)Positions · 3802Turnover · 24% · Q1Filed · May 14, 2026
CONCENTRATION
15%
Top 10 holdings
NEW BUYS
+92
+$2.6B deployed
EXITS
0
No exits
SECTOR SHIFT
TECHNOLOGY → OTHER
-2pp · +2pp
3YR HIT RATE
—
Top-5 overlap
§ 01 · TOP HOLDINGS
The book · Q1 2026
FILED MAY 14, 2026
| # | Ticker | Name | Shares | $ value | % port | Δ Q1 |
|---|---|---|---|---|---|---|
| 1 | NVDA | NVIDIA CORPORATION | 54.21M | $9.5B | 3.2% | −3% |
| 2 | MSFT | MICROSOFT CORP | 19.40M | $7.2B | 2.4% | −6% |
| 3 | AAPL | APPLE INC | 24.89M | $6.3B | 2.1% | +13% |
| 4 | GOOGL | ALPHABET INC | 18.42M | $5.3B | 1.8% | −7% |
| 5 | AMZN | AMAZON COM INC | 19.31M | $4.0B | 1.4% | −9% |
| 6 | JPM | JPMORGAN CHASE & CO | 11.44M | $3.4B | 1.1% | −6% |
| 7 | JNJ | JOHNSON & JOHNSON | 9.88M | $2.4B | 0.8% | −18% |
| 8 | TSM | TAIWAN SEMICONDUCTOR MANUFAC | 6.85M | $2.3B | 0.8% | −5% |
| 9 | XOM | EXXON MOBIL CORP | 13.33M | $2.3B | 0.8% | −7% |
| 10 | MA | MASTERCARD INCORPORATED | 4.42M | $2.2B | 0.7% | −6% |
§ 02 · SECTOR ALLOCATION
Where the money is
Other59.6% (+2pp)
Technology10.4% (−2pp)
Semiconductors9.5% (±0)
Financial Services8.7% (−1pp)
Health Care5.9% (±0)
Utilities5.3%
§ 03 · THE MASSACHUSETTS SIGNAL
AC read
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ is a Quality / Compounder fund managing $322.8 billion in assets. The fund runs a massive portfolio of 3,802 positions, broad diversification across holdings. Turnover is moderate at 24% per quarter, with 92 new positions and 0 exits last quarter. Top sector allocations: Other (60%), Technology (10%), Semiconductors (10%).
Read the full dossier →§ 04 · FILING HISTORY
Q-by-Q deltas
2 FILINGS
Q1 2026
Busy quarter
+92 buys · −0 exits · 849 changed
Q4 2025
Busy quarter
+103 buys · −0 exits · 808 changed
Q3 2025
Busy quarter
+62 buys · −0 exits · 790 changed
Q2 2025
Busy quarter
+64 buys · −0 exits · 816 changed