DFX Intelligence

RIA Intelligence

Registered investment advisers, the advisors registered through them, the capital they report, the private vehicles they run and the people who own them, as a graph with a filing date behind every number. RAUM is what the adviser filed, a move is two registration dates, and a class is a rule you can read.

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SEC-registered adviser

M•• I••••••••• M•••••••••

Asset manager (funds and pooled vehicles)Boston, MassachusettsCRD 110045SEC 801-17352websiteIAPD
Legal name M••••••••• F•••••••• S••••••• C••••••
Latest filing Mar 31, 2026
First filing on the tape Nov 21, 2011 · 60 filings
SEC status approved since May 20, 1982
RAUM
$514B
reported, Item 5.F
Discretionary
93%
of RAUM
Private clients
0.0%
$0 individuals and HNW
Advisors
0
registered through the firm on IAPD
RAUM per advisor
n/a
derived; firm RAUM over IAPD count
Employees
1,244
327 advisory (5.B.1)
Offices
0
beyond the principal office
Private funds
0
reported on Schedule D
History
60 filings and snapshots on the tape
RAUM$514B as of Mar 31, 2026
Mar 30, 2012$157B then
HNW client RAUM$0 as of Mar 31, 2026
Mar 30, 2018$0 then
State-registered IARs (5.B.3)0 as of Mar 31, 2026
Mar 28, 20130 then
Employees (5.A)1,244 as of Mar 31, 2026
Mar 28, 20131,000 then
Private funds6 as of Mar 30, 2020
Mar 30, 201210 then
RAUM +8.7% over the last fiscal year+7.2% a year over threeIARs 0 to 0
Practice profile
derived from the filing of Mar 31, 2026; every figure names its basis
Archetypes, each a printed rule
  • Broker-dealer affiliated · Item 7.A.1 (broker-dealer affiliate) and at least 50 registered representatives (Item 5.B.2), or the adviser is itself a broker-dealer (6.A.1)
RAUM per advisor
unknownderivedRAUM over IAPD advisors; not a book size
Clients per advisor
unknownderivedindividual and HNW clients (5.D) over advisors
Average HNW client
unknownderivedHNW RAUM over HNW clients
Average account
$1.4BderivedRAUM over accounts (5.F.2.f)
Discretionary
93%derivedof RAUM
Institutional
1.3%derivedpensions, charities, corporations, government, insurance, banks, other advisers
Employees per advisor
unknownderivedItem 5.A over advisors
Advisors per office
unknownderived1 offices incl. principal (1.F.5)
RAUM growth, one year
+8.7%derivedbetween the last two annual amendments
Advisor growth, one year
unknownderivedItem 5.B.3 between annual amendments
Client growth, one year
unknownderived
Compensation
percentage of assets, otherreportedItem 5.E
Advisory activities
portfolio management for businesses and institutions, portfolio management for pooled vehicles, portfolio management for investment companiesreportedItem 5.G
Custody
$33B, 66 clientsreportedItem 9.A
Ownership
no PE, bank or public-company owner found on Schedule Aderived
Advisor book size
not public; not estimatedreported
Also answered yes on Form ADV
  • buys or sells securities as principal to or from clients (8.A.2)
  • has discretionary authority over which securities are bought or sold (8.C.1)
  • compensates persons for client referrals (8.G.1)
  • compensates non-employees for client referrals (8.G.2)
  • has custody of client cash or bank accounts (9.A.1.a)
  • has custody of client securities (9.A.1.b)
  • a related person has custody of client cash (9.B.1.a)
  • a related person has custody of client securities (9.B.1.b)
  • marketing includes hypothetical performance (5.L.3)
Where the RAUM sits
Form ADV Item 5.D, latest filing
  • Investment companies$437B85%
  • Pooled investment vehicles$71B14%
  • Pension and profit-sharing plans$3.3B0.6%
  • Sovereign wealth funds$2.5B0.5%
  • State and municipal entities$705M0.1%
  • Corporations and businesses$143M0.0%
  • Insurance companies$86.5M0.0%
  • Charitable organizations$51.1M0.0%
Individual clients
0reported
HNW clients
0reported
Pension plan clients
18reported
Charitable clients
1reported
Accounts
355reported
Financial planning clients
reported
Wrap fee programs
noreported
Custody of client assets
$33B for 66 clientsreported
Compensation
% of AUMreported
Class basis
private_client_share=0.0 fund_share=0.99 institutional_share=0.01 related_bd=true related_bank=true bd_reps=65.0derived
Advisors registered through the firm
0 on IAPD today, longest tenure first
No representative is registered through this CRD on IAPD.
Advisor movement
Left, latest
none on the tape
    Joined, latest
    none on the tape
      Private funds
      12 reported on Schedule D 7.B.(1)
      FundTypeGross assetsOwnersFirst reported
      L•••• S••••• 2•••••• L•••no longer reportedSecuritized Asset Fund$994M0Aug 17, 2012
      F•••••••• S••••• S•••• 2•••••• L•••no longer reportedSecuritized Asset Fund$363M5Mar 30, 2012
      I•••••• S••••• C••• L•••no longer reportedSecuritized Asset Fund$350M300Mar 30, 2012
      G••••••••• S••••• A•• C•• I• L•••no longer reportedSecuritized Asset Fund$295M3Mar 30, 2012
      B••••••• S••••• C•• ••••••• L•••no longer reportedSecuritized Asset Fund$56.8M7Mar 30, 2012
      A•••••••• S••••• C•• ••••••• L•••no longer reportedSecuritized Asset Fund$51.0M300Mar 30, 2012
      J••••• S••••• C••• L•••no longer reportedSecuritized Asset Fund$47.5M0Mar 30, 2012
      C•••• E••••• S••••• S•••• 2•••••• L•••no longer reportedSecuritized Asset Fund$46.6M5Mar 30, 2012
      M•• E••••••• M•••••• D••• L••no longer reportedHedge Fund$33.4M3Mar 7, 2012
      M••••••••• S••••• C••• L•••no longer reportedSecuritized Asset Fund$3.5M0Mar 30, 2012
      C•••• D•••••••• S••••• 2•••••• L•••no longer reportedSecuritized Asset Fund$3.0M8Mar 30, 2012
      C•••• C•••••••• S••••• 2•••••• L•••no longer reportedSecuritized Asset Fund$277,7149Mar 30, 2012
      Owners and control persons
      Schedule A and B, latest filing
      • D•••••• T••••••• G••••••• · Directorcontrol
        since 07/2024 · owns less than 5%
      • G••••••• C••••• W•••••• · Director And Presidentcontrol
        since 01/2018 · owns less than 5%
      • H•••••• H••••• W••••• · Executive Vice President, General Counsel, And Secretarycontrol
        since 03/2017 · owns less than 5%
      • K•••••• A••••• B•••••••• · Director, Executive Vice President And Chief Financial Officercontrol
        since 01/2022 · owns less than 5%
      • K••••••• M••••••• J••• · Directorcontrol
        since 03/2024 · owns less than 5%
      • L••••••••• R•••• E•••••••• · Chief Compliance Officercontrol
        since 03/2022 · owns less than 5%
      • R••••••• M••••••• W•••••• · Director, Chairman Of The Board, Chairman And Chief Executive Officercontrol
        since 01/2022 · owns less than 5%
      • S•••••• K••••• D• · Directorcontrol
        since 06/2017 · owns less than 5%
      Entity owners
      • S•• L••• O• C••••• ••••• F•••••••• S••••••• H•••••••• I••• · Shareholder
        direct · owns 75% or more
      • S•• L••• 2••••• F•••••••• C•••• · Shareholder
        indirect · owns 75% or more of S•• L••• A•••••••• C•••••• O• C••••• - U.S. O••••••••• Holdings, Inc.
      • S•• L••• A•••••••• C•••••• O• C••••• • U••••••••• H•••••••• I••• · Shareholder
        indirect · owns 75% or more of S•• L••• F•••••••• ••••• H•••••••• I•••
      • S•• L••• F•••••••• ••••• H•••••••• I••• · Shareholder
        indirect · owns 75% or more of Sun L••• Financial (U.S.) Investments LLC
      • S•• L••• F•••••••• ••••• I••••••••• L•• · Shareholder
        indirect · owns 75% or more of S•• L••• O• C••••• ••••• F•••••••• S••••••• H•••••••• I•••
      • S•• L••• F•••••••• I••• · Shareholder
        indirect · owns 75% or more of S•• L••• G••••• I••••••••• I••• · public reporting company
      • S•• L••• G••••• I••••••••• I••• · Shareholder
        indirect · owns 75% or more of S•• L••• 2••••• F•••••••• C••••
      Related persons
      Schedule D 7.A
      • B••••••••• ••••••• L•••••• P•••••••••
        n
      • B••••••••• ••••• L•••••• P•••••••••
        investment advisernRAUM $24B
      • M•• D• B••••• D••••••••• D• M•••••• L••••
        investment advisery
      • M•• F••• D••••••••• I•••
        broker-dealery
      • M•• H••••••• T•••• C••••••
        pooled vehicle sponsory
      • M•• I••••••••• A••••••• I•••
        investment adviserbankpooled vehicle sponsoryRAUM $114B
      • M•• I••••••••• •••• K•••• L••••••
        broker-dealerinvestment advisery
      • M•• I••••••••• ••••• L••••••
        broker-dealerinvestment advisery
      • M•• I••••••••• A•••••••• P•• L••
        broker-dealerinvestment advisery
      • M•• I••••••••• S•••••••• P••• L•••
        investment advisery
      • M•• I••••••••• M••••••••• C••••• L••••••
        broker-dealerinvestment adviserpooled vehicle sponsory
      • M•• I••••••••• M••••••••• C•••••• •••• S•• R•••
        broker-dealerinvestment adviserpooled vehicle sponsory
      • M•• I••••••••• M••••••••• K•••
        broker-dealerinvestment adviserpooled vehicle sponsory
      • S•• L••• A•••••••• C•••••• O• C•••••
        real estaten
      • S•• M•••••••••
        investment adviserbankpooled vehicle sponsornRAUM $76B
      • S•• L••• E••••••••• L••• I•••••••• C•••••• L••••••
        real estaten
      Advisers that list M•• I••••••••• M••••••••• as a related person
      Offices
      Schedule D 1.F, the 25 largest
      No branch office listed.
      What changed
      consecutive filings, newest first
      • Accounts · 344 to 355
        Jan 20, 2026 to Mar 31, 2026
      • Advisory employees · 331 to 327
        Jan 20, 2026 to Mar 31, 2026
      • Corporate clients · 25 to 26
        Jan 20, 2026 to Mar 31, 2026
      • Pension plan clients · 22 to 18
        Jan 20, 2026 to Mar 31, 2026
      • Pooled vehicle clients · 101 to 115
        Jan 20, 2026 to Mar 31, 2026
      • Assets in custody · $27B to $33B
        Jan 20, 2026 to Mar 31, 2026
      • Employees · 1,271 to 1,244
        Jan 20, 2026 to Mar 31, 2026
      • Insurance-licensed employees · 12 to 13
        Jan 20, 2026 to Mar 31, 2026
      • Discretionary RAUM · $446B to $477B
        Jan 20, 2026 to Mar 31, 2026
      • Non-discretionary RAUM · $27B to $37B
        Jan 20, 2026 to Mar 31, 2026
      • Pension RAUM · $3.8B to $3.3B
        Jan 20, 2026 to Mar 31, 2026
      • Pooled vehicle RAUM · $57B to $71B
        Jan 20, 2026 to Mar 31, 2026
      • RAUM · $473B to $514B
        Jan 20, 2026 to Mar 31, 2026
      • Advisory employees · 332 to 331
        Jan 23, 2025 to Mar 31, 2025
      • BD registered reps · 68 to 65
        Jan 23, 2025 to Mar 31, 2025
      • Corporate clients · 22 to 25
        Jan 23, 2025 to Mar 31, 2025
      • Pension plan clients · 25 to 22
        Jan 23, 2025 to Mar 31, 2025
      • Pooled vehicle clients · 97 to 101
        Jan 23, 2025 to Mar 31, 2025
      • Assets in custody · $31B to $27B
        Jan 23, 2025 to Mar 31, 2025
      • Employees · 1,300 to 1,271
        Jan 23, 2025 to Mar 31, 2025
      • Insurance-licensed employees · 2 to 12
        Jan 23, 2025 to Mar 31, 2025
      • Financial planning clients · unset to
        Jan 23, 2025 to Mar 31, 2025
      • Discretionary RAUM · $432B to $446B
        Jan 23, 2025 to Mar 31, 2025
      • Non-discretionary RAUM · $22B to $27B
        Jan 23, 2025 to Mar 31, 2025
      • Pension RAUM · $4.7B to $3.8B
        Jan 23, 2025 to Mar 31, 2025
      • Pooled vehicle RAUM · $56B to $57B
        Jan 23, 2025 to Mar 31, 2025
      • RAUM · $454B to $473B
        Jan 23, 2025 to Mar 31, 2025
      • Accounts · 348 to 344
        Sep 6, 2023 to Mar 28, 2024
      • Advisory employees · 322 to 332
        Sep 6, 2023 to Mar 28, 2024
      • BD registered reps · 70 to 68
        Sep 6, 2023 to Mar 28, 2024
      • Corporate clients · 17 to 22
        Sep 6, 2023 to Mar 28, 2024
      • Pension plan clients · 27 to 25
        Sep 6, 2023 to Mar 28, 2024
      • Pooled vehicle clients · 102 to 97
        Sep 6, 2023 to Mar 28, 2024
      • Assets in custody · $33B to $31B
        Sep 6, 2023 to Mar 28, 2024
      • Employees · 1,200 to 1,300
        Sep 6, 2023 to Mar 28, 2024
      • Other offices · 1 to 0
        Sep 6, 2023 to Mar 28, 2024
      • Discretionary RAUM · $401B to $432B
        Sep 6, 2023 to Mar 28, 2024
      • Non-discretionary RAUM · $17B to $22B
        Sep 6, 2023 to Mar 28, 2024
      • Pension RAUM · $5.2B to $4.7B
        Sep 6, 2023 to Mar 28, 2024
      • Pooled vehicle RAUM · $51B to $56B
        Sep 6, 2023 to Mar 28, 2024
      Signals
      17 dated events
      • Girdwood Timothy Deacon (Director) appeared on Schedule A of M•• I••••••••• M•••••••••
        Jul 25, 2024 · Control person joined · fact
      • Marie Linda Dougherty (Director) no longer on Schedule A of M•• I••••••••• M••••••••• (listed 2024-03-28, absent 2024-07-25)
        Jul 25, 2024 · Control person left · inference
      • Manjit Singh (Director) no longer on Schedule A of M•• I••••••••• M••••••••• (listed 2023-09-06, absent 2024-03-28)
        Mar 28, 2024 · Control person left · inference
      • J••• M•••••• K•••••• (Director) appeared on Schedule A of M•• I••••••••• M•••••••••
        Mar 28, 2024 · Control person joined · fact
      • Marie Linda Dougherty (Director) appeared on Schedule A of M•• I••••••••• M•••••••••
        Sep 6, 2023 · Control person joined · fact
      • J••• M•••••• K•••••• (Director) no longer on Schedule A of M•• I••••••••• M••••••••• (listed 2023-03-31, absent 2023-08-01)
        Aug 1, 2023 · Control person left · inference
      • M•• I••••••••• M••••••••• reported RAUM $417.4B, down 25% from $556.8B (2023-02-15 to 2023-03-31)
        Mar 31, 2023 · RAUM change · derived
      • James Robert Manning (Non-Executive Chairman) no longer on Schedule A of M•• I••••••••• M••••••••• (listed 2022-01-04, absent 2022-03-31)
        Mar 31, 2022 · Control person left · inference
      • Joel Martin Wolin (Chief Compliance Officer) no longer on Schedule A of M•• I••••••••• M••••••••• (listed 2022-01-04, absent 2022-03-31)
        Mar 31, 2022 · Control person left · inference
      • Esmeralda Rosa Licea-Mailloux (Chief Compliance Officer) appeared on Schedule A of M•• I••••••••• M•••••••••
        Mar 31, 2022 · Control person joined · fact
      • Ann Robin Stelmach (Vice Chairman) no longer on Schedule A of M•• I••••••••• M••••••••• (listed 2021-05-20, absent 2021-07-15)
        Jul 15, 2021 · Control person left · inference
      • Jacques Goulet (Director) no longer on Schedule A of M•• I••••••••• M••••••••• (listed 2021-05-20, absent 2021-07-15)
        Jul 15, 2021 · Control person left · inference
      • Manjit Singh (Director) appeared on Schedule A of M•• I••••••••• M•••••••••
        Jul 15, 2021 · Control person joined · fact
      • Alexander David Antonelli (Vice Chairman) no longer on Schedule A of M•• I••••••••• M••••••••• (listed 2021-05-12, absent 2021-05-20)
        May 20, 2021 · Control person left · inference
      • J••• M•••••• K•••••• (Director) appeared on Schedule A of M•• I••••••••• M•••••••••
        Feb 6, 2020 · Control person joined · fact
      • Jacques Goulet (Director) appeared on Schedule A of M•• I••••••••• M•••••••••
        Feb 6, 2020 · Control person joined · fact
      • C Stephen Peacher (Director) no longer on Schedule A of M•• I••••••••• M••••••••• (listed 2019-06-10, absent 2020-02-06)
        Feb 6, 2020 · Control person left · inference
      Across DFX
      shared identifiers only, never a name match
      No identifier-backed link to the venture, private equity, family office or sponsor graphs.
      How to reach
      public business contact points only, each with its source
      Firm profile
      linkedin.com/company/mfs-investment-managementreportedpublic record, Form ADV, Sep 18, 2026
      Website
      mfs.comreportedpublic record, Form ADV, Sep 18, 2026
      Principal office phone
      617-954-5000reportedpublic record, Form ADV, Mar 31, 2026
      Provenance
      Form ADV
      SEC filing data 2011 to 2024 and the monthly roster 2025 onreportedadviserinfo.sec.gov
      Advisors
      IAPD individual compilation feed, dailyreportedadviserinfo.sec.gov
      Class
      Asset manager (funds and pooled vehicles)deriveda rule over Items 5.D and 7.A
      RAUM per advisor
      n/aderivedfirm RAUM over the IAPD count; not a book size
      Loaded
      Sep 14, 2026