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AdvisorCensus / Financial advisors / Massachusetts / Boston / SRB Corporation

SRB Corporation

Boston, MASEC-registered investment adviserCRD 161163

Filed as SRB CORPORATION

SRB Corporation is an SEC-registered investment advisory firm in Boston, MA, registered since 2012, reporting $1 billion to $5 billion in regulatory assets under management in its Form ADV filing dated March 30, 2026.

14 years
registered since 2012
$4,821,115,000
assets under management
1 arrangement
Percentage of assets
None
disclosure items (Item 11)

Quick answers

From the filing

How is SRB Corporation compensated?

On its Form ADV (Item 5.E, October 2026), SRB Corporation reports these compensation arrangements: a percentage of assets under its management.

Where is SRB Corporation located?

SRB Corporation's principal office is in Boston, MA, according to its Form ADV.

Is SRB Corporation registered with the SEC or a state?

SRB Corporation is an SEC-registered investment advisory firm, registered since 2012. Status as filed: Approved. CRD 161163.

How much does SRB Corporation manage?

SRB Corporation reports $4,821,115,000 in regulatory assets under management in its Form ADV filing dated March 30, 2026 (100% discretionary).

How have SRB Corporation's assets and staff changed since 2021?

In the Form ADV data for SRB Corporation: Regulatory assets under management: $2,822,437,000 in the October 2021 data and $4,821,115,000 in the October 2026 data, up 71%. Total employees: 4 in October 2021 and 4 in October 2026. Assets under management move with markets as well as with clients coming and going.

What types of clients does SRB Corporation serve?

By number of clients on Form ADV Item 5.D: insurance companies (20).

Which custodians does SRB Corporation use?

SRB Corporation's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists Northern Trust as a custodian holding 10% or more of its separately managed account assets.

Does SRB Corporation report any disciplinary disclosures?

Reports no disclosure items on Form ADV Item 11. The detail of any item is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/161163

What changed in SRB Corporation's recent Form ADV filings?

In the April 2026 filing data: Regulatory assets under management went from $4,202,600,000 to $4,821,115,000 (+15%).

From the Form ADV filing

Every figure below is as the firm filed it with regulators, as of October 2026.

How the firm is compensated

Item 5.E
  • A percentage of assets under your management

Item 5.E lists how the firm is compensated for its advice; Items 5.B, 6.A, and 7.A show whether its people or related companies can also earn commissions. Percentage of assets, fixed, hourly, subscription, and performance-based fees come from clients (a performance-based fee depends on investment results); commissions come with a sale or a trade, often from the company behind the product. How fees, commissions, and other arrangements differ

Fees and minimums

Form ADV Part 2A

The brochure lists different fees for different services or strategies. See the firm's brochure (dated March 30, 2026) for its fees and any account minimum, on the SEC's IAPD site.

Regulatory assets under management

Item 5.F
$4,821,115,000

$4,821,115,000 as of October 2026, filing dated March 30, 2026.

Discretionary: $4,821,115,000.Non-discretionary: $0.

A measure of scale, not skill or returns. Discretionary means the firm decides trades; non-discretionary means clients approve each one. What assets under management means

Who the firm serves

Item 5.D
Insurance companies
Clients 20 Assets $4,591,814,000 (95%)
Corporations or other businesses not listed above
Clients Fewer than 5 Assets $229,301,000 (5%)

A firm with no individual clients is an institutional manager even if it manages billions; the mix tells you whom the practice is built around.

Advisory services

Item 5.G
  • Other

Registration and firm details

Items 1, 2, 5
Registration
SEC-registered investment adviser. Status as filed: Approved.
Registered since
2012 (14 years)
Employees
Total: 4. Performing investment advisory functions: 2.
Wrap fee program participation
No.
Custodians (Schedule D, Section 5.K(3))

Custodians holding 10% or more of the firm's separately managed account assets, as filed on Form ADV (Schedule D, Section 5.K(3)). A custodian holds client assets; it does not endorse or supervise the firm. AdvisorCensus has no relationship with any custodian.

States registered or notice-filed
1 state or jurisdiction
MA

SEC-registered investment advisers are examined by the SEC. SEC, state, and exempt registration

Disclosures

Item 11

None Reports no disclosure items on Form ADV Item 11. View on IAPD.

Item 11 asks about criminal, regulatory, and civil events involving the firm and its advisory personnel. The detail of each yes answer is on the IAPD record. Reading a firm's disclosures

Assets and staff over time

Items 5.A, 5.F
$2.82B 2021 $3.22B 2022 $2.67B 2023 $3.89B 2024 $4.2B 2025 $4.82B 2026
Data periodAssets under managementEmployeesFiling dated
October 2026$4,821,115,0004March 30, 2026
October 2025$4,202,600,0004March 28, 2025
October 2024$3,890,087,0004March 29, 2024
October 2023$2,665,167,0004March 31, 2023
October 2022$3,224,282,0004March 31, 2022
October 2021$2,822,437,0004March 31, 2021

Regulatory assets under management: $2,822,437,000 in the October 2021 data and $4,821,115,000 in the October 2026 data, up 71%.

Total employees: 4 in October 2021 and 4 in October 2026.

As filed in each year's data for the same month. Assets under management move with markets as well as with clients coming and going; they measure scale, not skill or returns. Most firms update these figures once a year.

Changes in the filing

Last 12 months
  1. April 2026
    • Regulatory assets under management went from $4,202,600,000 to $4,821,115,000 (+15%).

Compared month to month from the SEC's monthly adviser data and the state compilation feed. Owners and control persons are summarized, never named.

Websites listed on Form ADV

Item 1.I

Not reported.

Source: Form ADV, as of October 2026. Values appear as filed; a value the firm did not report is shown as "Not reported."

Cite this page

AdvisorCensus. SRB Corporation (CRD 161163): Form ADV filing data as of October 2026.
https://advisorcensus.com/firm/srb-corporation-boston-ma-161163