MASSACHUSETTS FINANCIAL SERVICES CO MA
Q1 2022 Form 13-F

BOSTON, MASSACHUSETTS
CIK 0000912938 · CRD 110045 · SEC-registered investment adviser
Holdings reported by American Beacon Advisors Inc since Q2 2026
Consolidated report · includes 9 managers since Q2 2013
$337.4B Reported Value Total

MFS INVESTMENT MANAGEMENT reports 345 total accounts under management (AUM). There are 314 discretionary accounts valued at $541,329,046,646, and 31 non-discretionary accounts valued at $15,474,115,477.

Source: Form ADV filed * Note that certain holdings are exempt from Form 13-F reporting, so the AUM totals may be greater than the Form 13-F total.
SEC Registered Discretionary & Non-Discretionary
Private funds (Form ADV)
18 funds · $3.8B gross asset value
Securitized Asset Fund: $2.4B · Other: $926.3M · Hedge Fund: $398.5M
Source: Form ADV filed 2026-03-31
Reported value
$337.4B
Quarter over quarter
-6.7%
Holdings
857
Top-10 concentration
19.1%

Reports holdings for

Holdings reported by

Key People

Form ADV owners & control persons
John Malcolm Corcoran
CHIEF FINANCIAL OFFICER
Heidi Walter Hardin
DIRECTOR, EXECUTIVE VICE PRESIDENT, GENERAL COUNSEL, AND SECRETARY
Melissa Jane Kennedy
DIRECTOR
Q4 2021
Q2 2022
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Q1 2022 13F filing summary

Period of report March 31, 2022
Filed May 11, 2022
Form 13F-HR
Reported value $337.4B
Positions 857
Change in reported value -7.6%
New positions 46
Exited positions 73
Position turnover 12.8%
Top-10 concentration 19.1%

13F filings by quarter

Quarter Positions Value
Q2 2026 13F
Filed Aug 3, 2026
 997 $315.2B
Q1 2026 13F
Filed May 14, 2026
 940 $297.5B
Q4 2025 13F
Filed Jan 22, 2026
 913 $310.1B
Q3 2025 13F
Filed Oct 29, 2025
 854 $322.8B
Q2 2025 13F
Filed Aug 8, 2025
 883 $315.1B
Q1 2025 13F
Filed May 2, 2025
 879 $300.8B
Q4 2024 13F
Filed Feb 12, 2025
 872 $316.9B
Q3 2024 13F
Filed Nov 12, 2024
 844 $334.8B
Q2 2024 13F
Filed Aug 9, 2024
 859 $325.3B
Q1 2024 13F
Filed May 14, 2024
 837 $334.7B
Q4 2023 13F
Filed Feb 8, 2024
 831 $309.6B
Q3 2023 13F
Filed Nov 8, 2023
 833 $285.6B
Q2 2023 13F
Filed Aug 9, 2023
 819 $304.6B
Q1 2023 13F
Filed May 10, 2023
 836 $292.2B
Q4 2022 13F
Filed Feb 13, 2023
 844 $286.5B
Q3 2022 13F
Filed Nov 9, 2022
 847 $267.5B
Q2 2022 13F
Filed Aug 9, 2022
 846 $290.1B
Q1 2022 13F
Filed May 11, 2022
 857 $337.4B
Q4 2021 13F
Filed Feb 10, 2022
 884 $365.3B
Q3 2021 13F
Filed Nov 10, 2021
 903 $341.8B

33 earlier quarters on file — choose one from the quarter menu above.

Top 20 holdings · Q1 2022

# Holding Reported value % of portfolio
1 MSFT MICROSOFT CORP $12.1B 3.58%
2 GOOGL ALPHABET INC $7.8B 2.3%
3 TMO THERMO FISHER SCIENTIFIC INC $6.5B 1.94%
4 AMZN AMAZON COM INC $6.0B 1.79%
5 ACN ACCENTURE PLC IRELAND $5.9B 1.75%
6 AON AON PLC $5.9B 1.74%
7 AAPL APPLE INC $5.5B 1.62%
8 V VISA INC $5.4B 1.6%
9 CMCSA COMCAST CORP NEW $4.8B 1.43%
10 JNJ JOHNSON & JOHNSON $4.7B 1.39%
11 MDT MEDTRONIC PLC $4.6B 1.36%
12 JPM JPMORGAN CHASE & CO $4.5B 1.35%
13 HON HONEYWELL INTL INC $4.1B 1.21%
14 LIN LINDE PLC $3.8B 1.12%
15 BSX BOSTON SCIENTIFIC CORP $3.7B 1.1%
16 DHR DANAHER CORPORATION $3.7B 1.08%
17 TXN TEXAS INSTRS INC $3.5B 1.03%
18 CNI CANADIAN NATL RY CO $3.3B 0.99%
19 CDNS CADENCE DESIGN SYSTEM INC $3.2B 0.96%
20 UNP UNION PAC CORP $3.1B 0.91%

Values as reported on the Q1 2022 Form 13F. Every position is in the holdings table below.

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