AdvisorCensus / Financial advisors / Massachusetts / Boston / Grantham Mayo van Otterloo & Co LLC
Grantham Mayo van Otterloo & Co LLC is an SEC-registered investment advisory firm in Boston, MA, registered since 1979, reporting over $5 billion in regulatory assets under management in its Form ADV filing dated May 11, 2026.
Quick answers
From the filingHow is Grantham Mayo van Otterloo & Co LLC compensated?
On its Form ADV (Item 5.E, October 2026), Grantham Mayo van Otterloo & Co LLC reports these compensation arrangements: a percentage of assets under its management; performance-based fees.
How much does Grantham Mayo van Otterloo & Co LLC charge?
Its Form ADV Part 2A brochure dated March 31, 2026 states: Asset-based fee: 0.18% to 1% a year (a range, as the brochure states it). Fees can differ by service and may be negotiable; the brochure is the complete statement.
Where is Grantham Mayo van Otterloo & Co LLC located?
Grantham Mayo van Otterloo & Co LLC's principal office is in Boston, MA, according to its Form ADV.
Is Grantham Mayo van Otterloo & Co LLC registered with the SEC or a state?
Grantham Mayo van Otterloo & Co LLC is an SEC-registered investment advisory firm, registered since 1979. Status as filed: Approved. CRD 106220.
How much does Grantham Mayo van Otterloo & Co LLC manage?
Grantham Mayo van Otterloo & Co LLC reports $80,973,395,281 in regulatory assets under management in its Form ADV filing dated May 11, 2026 (98% discretionary).
How have Grantham Mayo van Otterloo & Co LLC's assets and staff changed since 2021?
In the Form ADV data for Grantham Mayo van Otterloo & Co LLC: Regulatory assets under management: $63,850,039,853 in the October 2021 data and $80,973,395,281 in the October 2026 data, up 27%. Total employees: 399 in October 2021 and 365 in October 2026. Assets under management move with markets as well as with clients coming and going.
What types of clients does Grantham Mayo van Otterloo & Co LLC serve?
By number of clients on Form ADV Item 5.D: pooled investment vehicles (other than investment companies and business development companies) (53); investment companies (40); charitable organizations (16).
Which custodians does Grantham Mayo van Otterloo & Co LLC use?
Grantham Mayo van Otterloo & Co LLC's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists CIBC Mellon Trust Company, State Street Bank and Trust Company, State Street Bank and Trust Company - Hong Kong Branch, State Street Bank and Trust Company - Singapore Branch, State Street Cayman Trust Company, Ltd., State Street International (Ireland) Limited, State Street Trust Company Canada, State Street Trustees Limited, Street Bank and Trust Company - Tokyo Branch, The Bank of New York Mellon and The Bank of New York Mellon - London Branch as custodians holding 10% or more of its separately managed account assets.
Does Grantham Mayo van Otterloo & Co LLC report any disciplinary disclosures?
Reports 3 disclosure items on Form ADV Item 11: yes answers to 11.D(2) (another regulator's finding of a violation), 11.D(4) (another regulator's order in the past ten years), and 11.E(2) (self-regulatory organization's finding of a rule violation). Each question covers the firm and its advisory affiliates, and one event can produce several yes answers. The detail of any item is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/106220
What changed in Grantham Mayo van Otterloo & Co LLC's recent Form ADV filings?
In the June 2026 filing data: Updated its list of owners and control persons (Schedule A).
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
- Performance-based fees
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 2AAsset-based fee: 0.18% to 1% a year (a range, as the brochure states it)
The brochure's wording
The asset-based fees paid to GMO by clients with discretionary separately managed accounts generally range from 0.18% to 1.00%.
As stated in the firm's Form ADV Part 2A brochure dated March 31, 2026. Fees can differ by service and may be negotiable; the brochure is the complete statement. Read the brochure on the SEC's IAPD site
Regulatory assets under management
Item 5.F$80,973,395,281 as of October 2026, filing dated May 11, 2026.
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.DA 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- Portfolio management for individuals and/or small businesses
- Portfolio management for investment companies (and business development companies)
- Portfolio management for pooled investment vehicles (other than investment companies)
- Portfolio management for businesses (other than small businesses) or institutional clients
- Pension consulting services
- Selection of other advisers (including private fund managers)
- Publication of periodicals or newsletters
- Educational seminars/workshops
Registration and firm details
Items 1, 2, 5- Also doing business as
- GMO, GMO LLC
- Registration
- SEC-registered investment adviser. Status as filed: Approved.
- Registered since
- 1979 (46 years)
- Employees
- Total: 365. Performing investment advisory functions: 91.
- 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
-
2 states or jurisdictions
SEC-registered investment advisers are examined by the SEC. SEC, state, and exempt registration
Disclosures
Item 113 Reports 3 disclosure items on Form ADV Item 11. View on IAPD.
Questions answered yes on this filing
Regulatory matters Items 11.C to 11.G
- 11.D(2) Has another federal regulator, a state regulator, or a foreign financial regulator ever found that the firm or an advisory affiliate was involved in a violation of investment-related regulations or statutes?
- 11.D(4) In the past ten years, has another federal regulator, a state regulator, or a foreign financial regulator entered an order against the firm or an advisory affiliate in connection with investment-related activity?
- 11.E(2) Has a self-regulatory organization or a commodities exchange ever found that the firm or an advisory affiliate was involved in a violation of its rules, other than a minor rule violation under a plan the SEC approved?
Each question covers the firm and its advisory affiliates: its current employees other than clerical staff, its officers, partners, and directors, and anyone who controls the firm or is controlled by it. One event can produce yes answers to several questions. SEC-registered advisers and exempt reporting advisers may leave out events more than ten years old, and may answer 11.A(2) and 11.B(2) for pending charges only. What happened, and who was involved, is on the Disclosure Reporting Pages of the IAPD record. Reading a firm's disclosures
Assets and staff over time
Items 5.A, 5.F| Data period | Assets under management | Employees | Filing dated |
|---|---|---|---|
| October 2026 | $80,973,395,281 | 365 | May 11, 2026 |
| October 2025 | $68,645,419,782 | 361 | June 30, 2025 |
| October 2024 | $63,392,391,637 | 369 | August 21, 2024 |
| October 2023 | $60,835,958,170 | 367 | May 9, 2023 |
| October 2022 | $71,875,018,352 | 396 | March 30, 2022 |
| October 2021 | $63,850,039,853 | 399 | July 8, 2021 |
Regulatory assets under management: $63,850,039,853 in the October 2021 data and $80,973,395,281 in the October 2026 data, up 27%.
Total employees: 399 in October 2021 and 365 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- June 2026
- Updated its list of owners and control persons (Schedule A).
- April 2026
- Employees performing advisory functions went from 86 to 91.
- Regulatory assets under management went from $68,645,419,782 to $80,973,395,281 (+18%).
- Updated its list of owners and control persons (Schedule A).
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.ISource: 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. Grantham Mayo van Otterloo & Co LLC (CRD 106220): Form ADV filing data as of October 2026. https://advisorcensus.com/firm/grantham-mayo-van-otterloo-and-co-llc-boston-ma-106220