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.
SEC-registered adviser
Westfield Capital Management Company, L.P.
Latest filing Jul 1, 2026
First filing on the tape Dec 21, 2011 · 50 filings
SEC status approved since Jun 30, 2008
RAUM
$30B
reported, Item 5.F
Discretionary
100%
of RAUM
Private clients
6.8%
$2.0B individuals and HNW
Advisors
1
registered through the firm on IAPD
RAUM per advisor
$30B
derived; firm RAUM over IAPD count
Employees
63
19 advisory (5.B.1)
Offices
0
beyond the principal office
Private funds
2
reported on Schedule D
History
50 filings and snapshots on the tape
RAUM$30B as of Jul 1, 2026
Mar 26, 2012$14B then
HNW client RAUM$1.3B as of Jul 1, 2026
Mar 12, 2018$741M then
State-registered IARs (5.B.3)1 as of Jul 1, 2026
Mar 14, 20131 then
Employees (5.A)63 as of Jul 1, 2026
Mar 14, 201361 then
Private funds2 as of Jul 1, 2026
Mar 26, 20124 then
RAUM +27% over the last fiscal year+31% a year over threeIARs 1 to 1
Practice profile
derived from the filing of Jul 1, 2026; every figure names its basis
Archetypes, each a printed rule
- Solo or small team · one advisor, or a wealth manager with up to three advisors and one office
- RAUM per advisor
- $30BderivedRAUM over IAPD advisors; not a book size
- Clients per advisor
- 8,910derivedindividual and HNW clients (5.D) over advisors
- Average HNW client
- $2.6MderivedHNW RAUM over HNW clients
- Average account
- $3.2MderivedRAUM over accounts (5.F.2.f)
- Discretionary
- 100%derivedof RAUM
- Institutional
- 41%derivedpensions, charities, corporations, government, insurance, banks, other advisers
- Employees per advisor
- 63.0derivedItem 5.A over advisors
- Advisors per office
- 1.0derived1 offices incl. principal (1.F.5)
- RAUM growth, one year
- +3.6%derivedbetween the last two annual amendments
- Advisor growth, one year
- +0.0%derivedItem 5.B.3 between annual amendments
- Client growth, one year
- +17%derived
- Compensation
- percentage of assets, performance-basedreportedItem 5.E
- Advisory activities
- portfolio management for individuals, portfolio management for businesses and institutions, portfolio management for pooled vehicles, portfolio management for investment companiesreportedItem 5.G
- Wrap fee program
- participatesreportedItem 5.I
- Custody
- $71.3M, 2 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)
- receives research or other products from a broker-dealer, soft dollars (8.E)
- 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)
Where the RAUM sits
Form ADV Item 5.D, latest filing
- Investment companies$10.0B34%
- Pension and profit-sharing plans$6.4B21%
- Pooled investment vehicles$4.5B15%
- State and municipal entities$4.3B14%
- Charitable organizations$1.4B4.8%
- High-net-worth individuals$1.3B4.5%
- Individuals$699M2.3%
- Other investment advisers$661M2.2%
- Corporations and businesses$496M1.7%
- Individual clients
- 8,398reported
- HNW clients
- 512reported
- Pension plan clients
- 177reported
- Charitable clients
- 138reported
- Accounts
- 9,391reported
- Financial planning clients
- reported
- Wrap fee programs
- $0 sponsored, $1.6B managedreported
- Custody of client assets
- $71.3M for 2 clientsreported
- Compensation
- % of AUM, performancereported
- Class basis
- private_client_share=0.07 fund_share=0.51 institutional_share=0.41 related_bd=false related_bank=false bd_reps=0.0derived
Advisors registered through the firm
1 on IAPD today, longest tenure first
| Name | Branch | Here since | In industry | Prior firms |
|---|---|---|---|---|
| William Albert Muggia | Boston, Ma | Jul 9, 2008 | 42 y | 1 |
Advisor movement
0 left, 0 joined in 12 months
net 0 in 12 months0 left in 90 days0 joined in 90 daysdeparture rate 0.0% of current headcount0 left over 36 months
Left, latest
none on the tape
Joined, latest
- William Albert Muggia from Bpfh Manager, LLCJul 9, 2008 · Other
Private funds
11 reported on Schedule D 7.B.(1)
| Fund | Type | Gross assets | Owners | First reported |
|---|---|---|---|---|
| Westfield Large Cap Growth Fund L.P.no longer reported | $81.7M | n/a | Dec 21, 2011 | |
| Westfield Dividend Growth Fund Limited Partnershipno longer reported | Other Private Fund | $45.2M | 29 | Dec 21, 2011 |
| Westfield Absolute Return Fund Limited Partnership | Hedge Fund | $32.5M | 20 | Dec 21, 2011 |
| Westfield Select Growth Equity LP | Other Private Fund | $22.8M | 8 | Mar 18, 2014 |
| Westfield Emerging Markets Small Cap Fund LPno longer reported | Other Private Fund | $11.5M | 15 | Jun 23, 2017 |
| Westfield Health Care Fund LPno longer reported | Other Private Fund | $4.0M | 10 | Mar 8, 2021 |
| Westfield Disruptive Innovation Fund LP | Other Private Fund | $2.1M | 4 | Mar 8, 2021 |
| Westfield Global Dividend Growth Fund LPno longer reported | Other Private Fund | $1.2M | 2 | Nov 15, 2016 |
| Westfield Life Sciences Fund II Limited Partnershipno longer reported | Hedge Fund | $523,451 | 26 | Dec 21, 2011 |
| Westfield Life Sciences Fund Limited Partnershipno longer reported | Hedge Fund | $256,239 | 44 | Dec 21, 2011 |
| Westfield Capital Spv I, LPno longer reported | Private Equity Fund | $128,833 | 11 | Oct 15, 2015 |
Owners and control persons
Schedule A and B, latest filing
- Ann Kathryn Kearney · Partner, Chief Financial Officer And Chief Compliance Officercontrolsince 12/2012 · owns less than 5%
- Dailyong Richard Lee · Chief Investment Officercontrolsince 01/2016 · owns less than 5%
- Morgen John Montgomery · Chief Operating Officercontrolsince 01/2015 · owns less than 5%
- Albert William Muggia · Chief Executive Officer And Chief Investment Officercontrolsince 11/2001 · owns less than 5%
- Tizoc Robert Flores · Member Of Management Committeecontrolsince 01/2013 · owns F of Wms Management LLC
- Ann Kathryn Kearney · Member Of Management Committeecontrolsince 01/2021 · owns F of Wms Management LLC
- Dailyong Richard Lee · Member Of Management Committeecontrolsince 01/2013 · owns F of Wms Management LLC
- Joseph Ethan Meyers · Member Of Management Committeecontrolsince 01/2013 · owns F of Wms Management LLC
- Morgen John Montgomery · Member Of Management Committeecontrolsince 01/2013 · owns F of Wms Management LLC
- Matthew Justin Moscardelli · Member Of Management Committeecontrolsince 01/2024 · owns F of Wms Management LLC
- Albert William Muggia · Member Of Management Committeecontrolsince 06/2008 · owns 50% to 75% of Wms Management LLC
- Ann Jenny Muller · Member Of Management Committeecontrolsince 01/2021 · owns F of Wms Management LLC
- Robert Matthew Renna · Member Of Management Committeecontrolsince 01/2021 · owns F of Wms Management LLC
Entity owners
- Wms General Partner LLC · General Partnerdirect · owns less than 5%
- Wms Management LLC · Limited Partnerdirect · owns 75% or more
- Wms Management LLC · Sole Memberindirect · owns 75% or more of Wms General Partner LLC
Related persons
Schedule D 7.A
No related person reported.
Offices
Schedule D 1.F, the 25 largest
No branch office listed.
What changed
consecutive filings, newest first
- Accounts · 1,118 to 9,391Mar 11, 2026 to Jul 1, 2026
- Advisory employees · 17 to 19Mar 11, 2026 to Jul 1, 2026
- Charity clients · 127 to 138Mar 11, 2026 to Jul 1, 2026
- Corporate clients · 84 to 97Mar 11, 2026 to Jul 1, 2026
- HNW clients · 505 to 512Mar 11, 2026 to Jul 1, 2026
- Individual clients · 274 to 8,398Mar 11, 2026 to Jul 1, 2026
- Pension plan clients · 61 to 177Mar 11, 2026 to Jul 1, 2026
- Assets in custody · $71.1M to $71.3MMar 11, 2026 to Jul 1, 2026
- Employees · 61 to 63Mar 11, 2026 to Jul 1, 2026
- Discretionary RAUM · $24B to $30BMar 11, 2026 to Jul 1, 2026
- HNW RAUM · $1.3B to $1.3BMar 11, 2026 to Jul 1, 2026
- Individual RAUM · $111M to $699MMar 11, 2026 to Jul 1, 2026
- Pension RAUM · $5.5B to $6.4BMar 11, 2026 to Jul 1, 2026
- Pooled vehicle RAUM · $3.7B to $4.5BMar 11, 2026 to Jul 1, 2026
- RAUM · $24B to $30BMar 11, 2026 to Jul 1, 2026
- Wrap assets (manager) · $1.0B to $1.6BMar 11, 2026 to Jul 1, 2026
- Accounts · 975 to 1,118Oct 10, 2025 to Mar 11, 2026
- Advisory employees · 19 to 17Oct 10, 2025 to Mar 11, 2026
- Charity clients · 110 to 127Oct 10, 2025 to Mar 11, 2026
- Corporate clients · 69 to 84Oct 10, 2025 to Mar 11, 2026
- HNW clients · 460 to 505Oct 10, 2025 to Mar 11, 2026
- Individual clients · 204 to 274Oct 10, 2025 to Mar 11, 2026
- Pension plan clients · 65 to 61Oct 10, 2025 to Mar 11, 2026
- Assets in custody · $68.1M to $71.1MOct 10, 2025 to Mar 11, 2026
- Employees · 60 to 61Oct 10, 2025 to Mar 11, 2026
- Discretionary RAUM · $24B to $24BOct 10, 2025 to Mar 11, 2026
- HNW RAUM · $1.2B to $1.3BOct 10, 2025 to Mar 11, 2026
- Individual RAUM · $97.7M to $111MOct 10, 2025 to Mar 11, 2026
- Pension RAUM · $5.6B to $5.5BOct 10, 2025 to Mar 11, 2026
- Pooled vehicle RAUM · $3.6B to $3.7BOct 10, 2025 to Mar 11, 2026
- RAUM · $24B to $24BOct 10, 2025 to Mar 11, 2026
- Wrap assets (manager) · $842M to $1.0BOct 10, 2025 to Mar 11, 2026
- Accounts · 794 to 975Sep 10, 2024 to Apr 30, 2025
- Advisory employees · 18 to 19Sep 10, 2024 to Apr 30, 2025
- Charity clients · 105 to 110Sep 10, 2024 to Apr 30, 2025
- Corporate clients · 39 to 69Sep 10, 2024 to Apr 30, 2025
- HNW clients · 387 to 460Sep 10, 2024 to Apr 30, 2025
- Individual clients · 139 to 204Sep 10, 2024 to Apr 30, 2025
- Pension plan clients · 68 to 65Sep 10, 2024 to Apr 30, 2025
- Pooled vehicle clients · 12 to 15Sep 10, 2024 to Apr 30, 2025
Signals
7 dated events
- Westfield Capital Management Company, L.P. reported RAUM $23.6B, up 34% from $17.6B (2024-09-10 to 2025-04-30)Apr 30, 2025 · RAUM change · derived
- Westfield Capital Management Company, L.P. reported RAUM $17.6B, up 32% from $13.3B (2023-09-28 to 2024-03-07)Mar 7, 2024 · RAUM change · derived
- Matthew Justin Moscardelli (Member Of Management Committee) appeared on Schedule A of Westfield Capital Management Company, L.P.Mar 7, 2024 · Control person joined · fact
- Ann Jenny Muller (Member Of Management Committee) appeared on Schedule A of Westfield Capital Management Company, L.P.Mar 8, 2021 · Control person joined · fact
- Robert Matthew Renna (Member Of Management Committee) appeared on Schedule A of Westfield Capital Management Company, L.P.Mar 8, 2021 · Control person joined · fact
- Hamlen David Thompson (Member Of Management Committee) no longer on Schedule A of Westfield Capital Management Company, L.P. (listed 2020-03-10, absent 2020-05-08)May 8, 2020 · Control person left · inference
- Nathan Bruce Jacobs (Member Of Management Committee) no longer on Schedule A of Westfield Capital Management Company, L.P. (listed 2019-03-12, absent 2019-07-09)Jul 9, 2019 · Control person left · inference
Across DFX
shared identifiers only, never a name match
- Westfield Capital Management Company, L.P. · Private Equityshared crd · organization
How to reach
public business contact points only, each with its source
- Firm profile
- LINKEDIN.COM/COMPANY/WESTFIELD-CAPITAL-MANAGEMENTreportedpublic record, Form ADV, Sep 18, 2026
- Website
- WESTFIELDCAPITAL.COMreportedpublic record, Form ADV, Sep 18, 2026
- Principal office phone
- (617) 428-7100reportedpublic record, Form ADV, Jul 1, 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
- Other adviserderiveda rule over Items 5.D and 7.A
- RAUM per advisor
- $30Bderivedfirm RAUM over the IAPD count; not a book size
- Loaded
- Sep 14, 2026