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

P••••••• C•••••• M••••••••• L••

Other adviserBoston, MassachusettsCRD 157542SEC 801-73963websiteIAPD
Latest filing Apr 15, 2026
First filing on the tape Feb 14, 2012 · 24 filings
SEC status approved since Mar 30, 2012
RAUM
$2.0B
reported, Item 5.F
Discretionary
100%
of RAUM
Private clients
13%
$267M individuals and HNW
Advisors
0
registered through the firm on IAPD
RAUM per advisor
n/a
derived; firm RAUM over IAPD count
Employees
12
4 advisory (5.B.1)
Offices
1
beyond the principal office
Private funds
3
reported on Schedule D
History
24 filings and snapshots on the tape
RAUM$2.0B as of Apr 15, 2026
Mar 28, 2013$390M then
HNW client RAUM$267M as of Apr 15, 2026
Apr 2, 2018$134M then
State-registered IARs (5.B.3)0 as of Apr 15, 2026
Mar 28, 20130 then
Employees (5.A)12 as of Apr 15, 2026
Mar 28, 201310 then
Private funds3 as of Apr 15, 2026
Mar 28, 20134 then
RAUM +28% over the last fiscal year+24% a year over threeIARs 0 to 0
Practice profile
derived from the filing of Apr 15, 2026; every figure names its basis
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
$19.1MderivedHNW RAUM over HNW clients
Average account
$101MderivedRAUM over accounts (5.F.2.f)
Discretionary
100%derivedof RAUM
Institutional
5.4%derivedpensions, charities, corporations, government, insurance, banks, other advisers
Employees per advisor
unknownderivedItem 5.A over advisors
Advisors per office
unknownderived2 offices incl. principal (1.F.5)
RAUM growth, one year
+28%derivedbetween the last two annual amendments
Advisor growth, one year
unknownderivedItem 5.B.3 between annual amendments
Client growth, one year
-13%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
Custody
yesreportedItem 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)
Where the RAUM sits
Form ADV Item 5.D, latest filing
  • Investment companies$1.0B52%
  • Pooled investment vehicles$597M30%
  • High-net-worth individuals$267M13%
  • Charitable organizations$110M5.4%
Individual clients
0reported
HNW clients
14reported
Pension plan clients
0reported
Charitable clients
n/areported
Accounts
20reported
Financial planning clients
reported
Wrap fee programs
noreported
Custody of client assets
$0 for 0 clientsreported
Compensation
% of AUM, performancereported
Class basis
private_client_share=0.13 fund_share=0.81 institutional_share=0.05 related_bd=false related_bank=true bd_reps=0.0derived
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
      6 reported on Schedule D 7.B.(1)
      Owners and control persons
      Schedule A and B, latest filing
      • M•••••• G•••••• F••••••• · Chief Investment Officer, Managing Director, And Sole Membercontrol
        since 12/2004 · owns 75% or more
      • B•••••• N••••• J••• · Chief Administrative Officer
        since 11/2014 · owns less than 5%
      • F•••••••• B••••• H••••••• · Chief Compliance Officer
        since 01/2021 · owns less than 5%
      • N••••••• C••••••••• S••••• · Chief Financial Officer And Chief Operating Officer
        since 11/2014 · owns less than 5%
      Related persons
      Schedule D 7.A
      • P••••••• I••••••••• L••
        bankpooled vehicle sponsorn
      Offices
      Schedule D 1.F, the 25 largest
      • , 1 employees
      What changed
      consecutive filings, newest first
      • Accounts · 22 to 20
        Nov 10, 2025 to Mar 30, 2026
      • HNW clients · 16 to 14
        Nov 10, 2025 to Mar 30, 2026
      • Discretionary RAUM · $1.6B to $2.0B
        Nov 10, 2025 to Mar 30, 2026
      • HNW RAUM · $197M to $267M
        Nov 10, 2025 to Mar 30, 2026
      • Pooled vehicle RAUM · $463M to $597M
        Nov 10, 2025 to Mar 30, 2026
      • RAUM · $1.6B to $2.0B
        Nov 10, 2025 to Mar 30, 2026
      • Advisory employees · 5 to 4
        Mar 28, 2024 to Mar 31, 2025
      • Assets in custody · $70.0M to $0
        Mar 28, 2024 to Mar 31, 2025
      • Employees · 13 to 12
        Mar 28, 2024 to Mar 31, 2025
      • Financial planning clients · unset to
        Mar 28, 2024 to Mar 31, 2025
      • Discretionary RAUM · $1.2B to $1.6B
        Mar 28, 2024 to Mar 31, 2025
      • HNW RAUM · $118M to $197M
        Mar 28, 2024 to Mar 31, 2025
      • Pooled vehicle RAUM · $422M to $463M
        Mar 28, 2024 to Mar 31, 2025
      • RAUM · $1.2B to $1.6B
        Mar 28, 2024 to Mar 31, 2025
      • Advisory employees · 4 to 5
        Mar 31, 2023 to Mar 28, 2024
      • Assets in custody · $77.3M to $70.0M
        Mar 31, 2023 to Mar 28, 2024
      • Employees · 12 to 13
        Mar 31, 2023 to Mar 28, 2024
      • Discretionary RAUM · $1.1B to $1.2B
        Mar 31, 2023 to Mar 28, 2024
      • HNW RAUM · $95.4M to $118M
        Mar 31, 2023 to Mar 28, 2024
      • Pooled vehicle RAUM · $405M to $422M
        Mar 31, 2023 to Mar 28, 2024
      • RAUM · $1.1B to $1.2B
        Mar 31, 2023 to Mar 28, 2024
      • Accounts · 19 to 22
        Mar 28, 2022 to Mar 31, 2023
      • HNW clients · 13 to 16
        Mar 28, 2022 to Mar 31, 2023
      • Assets in custody · $112M to $77.3M
        Mar 28, 2022 to Mar 31, 2023
      • Employees · 11 to 12
        Mar 28, 2022 to Mar 31, 2023
      • Discretionary RAUM · $1.6B to $1.1B
        Mar 28, 2022 to Mar 31, 2023
      • HNW RAUM · $140M to $95.4M
        Mar 28, 2022 to Mar 31, 2023
      • Pooled vehicle RAUM · $616M to $405M
        Mar 28, 2022 to Mar 31, 2023
      • RAUM · $1.6B to $1.1B
        Mar 28, 2022 to Mar 31, 2023
      • Accounts · 16 to 19
        May 4, 2021 to Mar 28, 2022
      • HNW clients · 10 to 13
        May 4, 2021 to Mar 28, 2022
      • Assets in custody · $85.5M to $112M
        May 4, 2021 to Mar 28, 2022
      • Discretionary RAUM · $1.2B to $1.6B
        May 4, 2021 to Mar 28, 2022
      • HNW RAUM · $109M to $140M
        May 4, 2021 to Mar 28, 2022
      • Pooled vehicle RAUM · $498M to $616M
        May 4, 2021 to Mar 28, 2022
      • RAUM · $1.2B to $1.6B
        May 4, 2021 to Mar 28, 2022
      • Accounts · 21 to 16
        Jan 14, 2021 to Mar 31, 2021
      • HNW clients · 15 to 10
        Jan 14, 2021 to Mar 31, 2021
      • Assets in custody · $98.9M to $85.5M
        Jan 14, 2021 to Mar 31, 2021
      • Discretionary RAUM · $1.1B to $1.2B
        Jan 14, 2021 to Mar 31, 2021
      Signals
      5 dated events
      • P••••••• C•••••• M••••••••• L•• reported RAUM $2.0B, up 28% from $1.6B (2025-11-10 to 2026-03-30)
        Mar 30, 2026 · RAUM change · derived
      • P••••••• C•••••• M••••••••• L•• reported RAUM $1.6B, up 30% from $1.2B (2024-03-28 to 2025-03-31)
        Mar 31, 2025 · RAUM change · derived
      • P••••••• C•••••• M••••••••• L•• reported RAUM $1.1B, down 32% from $1.6B (2022-03-28 to 2023-03-31)
        Mar 31, 2023 · RAUM change · derived
      • P••••••• C•••••• M••••••••• L•• reported RAUM $1.6B, up 27% from $1.2B (2021-05-04 to 2022-03-28)
        Mar 28, 2022 · RAUM change · derived
      • P••••••• C•••••• M••••••••• L•• reported RAUM $987.2M, up 25% from $787.6M (2017-03-31 to 2018-04-02)
        Apr 2, 2018 · RAUM change · derived
      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/portolan-capital-managementreportedpublic record, Form ADV, Sep 18, 2026
      Website
      p•••••••.comreportedpublic record, Form ADV, Sep 18, 2026
      Principal office phone
      617-753-6400reportedpublic record, Form ADV, Apr 15, 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
      n/aderivedfirm RAUM over the IAPD count; not a book size
      Loaded
      Sep 14, 2026