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Maple Rock Capital Partners Inc.

Toronto, CanadaSEC-registered investment adviserCRD 173887

Filed as MAPLE ROCK CAPITAL PARTNERS INC.

Maple Rock Capital Partners Inc. is an SEC-registered investment advisory firm in Toronto, Canada, registered since 2015, reporting over $5 billion in regulatory assets under management in its Form ADV filing dated March 31, 2026.

11 years
registered since 2015
$6,340,993,380
assets under management
2 arrangements
Percentage of assets, Performance-based
2
disclosure items (Item 11)

Quick answers

From the filing

How is Maple Rock Capital Partners Inc. compensated?

On its Form ADV (Item 5.E, October 2026), Maple Rock Capital Partners Inc. reports these compensation arrangements: a percentage of assets under its management; performance-based fees.

Where is Maple Rock Capital Partners Inc. located?

Maple Rock Capital Partners Inc.'s principal office is in Toronto, Canada, according to its Form ADV; the April 2026 filing also lists 1 other office (Schedule D, Section 1.F).

Is Maple Rock Capital Partners Inc. registered with the SEC or a state?

Maple Rock Capital Partners Inc. is an SEC-registered investment advisory firm, registered since 2015. Status as filed: Approved. CRD 173887.

How much does Maple Rock Capital Partners Inc. manage?

Maple Rock Capital Partners Inc. reports $6,340,993,380 in regulatory assets under management in its Form ADV filing dated March 31, 2026 (100% discretionary).

How have Maple Rock Capital Partners Inc.'s assets and staff changed since 2021?

In the Form ADV data for Maple Rock Capital Partners Inc.: Regulatory assets under management: $1,401,492,171 in the October 2021 data and $6,340,993,380 in the October 2026 data, up 352%. Total employees: 11 in October 2021 and 16 in October 2026. Assets under management move with markets as well as with clients coming and going.

What types of clients does Maple Rock Capital Partners Inc. serve?

By number of clients on Form ADV Item 5.D: pooled investment vehicles (other than investment companies and business development companies) (3).

Does Maple Rock Capital Partners Inc. report any disciplinary disclosures?

Reports 2 disclosure items on Form ADV Item 11: yes answers to 11.D(2) (another regulator's finding of a violation) and 11.D(4) (another regulator's order in the past ten years). 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/173887

What changed in Maple Rock Capital Partners Inc.'s recent Form ADV filings?

In the April 2026 filing data: Regulatory assets under management went from $3,491,460,203 to $6,340,993,380 (+82%).

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 2A

See the firm's brochure (dated March 31, 2026) for its fees and any account minimum, on the SEC's IAPD site.

Regulatory assets under management

Item 5.F
$6,340,993,380

$6,340,993,380 as of October 2026, filing dated March 31, 2026.

Discretionary: $6,340,993,380.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
Individuals (other than high net worth individuals)
Clients 0 Assets $0 (0%)
High net worth individuals
Clients 0 Assets $0 (0%)
Banking or thrift institutions
Clients 0 Assets $0 (0%)
Investment companies
Clients 0 Assets $0 (0%)
Business development companies
Clients 0 Assets $0 (0%)
Pooled investment vehicles (other than investment companies and business development companies)
Clients 3 Assets $6,340,993,380 (100%)
Pension and profit sharing plans (but not the plan participants or government pension plans)
Clients 0 Assets $0 (0%)
Charitable organizations
Clients 0 Assets $0 (0%)
State or municipal government entities (including government pension plans)
Clients 0 Assets $0 (0%)
Other investment advisers
Clients 0 Assets $0 (0%)
Insurance companies
Clients 0 Assets $0 (0%)
Sovereign wealth funds and foreign official institutions
Clients 0 Assets $0 (0%)
Corporations or other businesses not listed above
Clients 0 Assets $0 (0%)

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
  • Portfolio management for pooled investment vehicles (other than investment companies)

Registration and firm details

Items 1, 2, 5
Registration
SEC-registered investment adviser. Status as filed: Approved.
Registered since
2015 (11 years)
Employees
Total: 16. Performing investment advisory functions: 10.
Wrap fee program participation
No.
Other offices (Schedule D, Section 1.F)
1 other office, as of the April 2026 filing
Corte Madera, CA
States registered or notice-filed
Not reported.

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

Disclosures

Item 11

2 Reports 2 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?

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
$1.4B 2021 $1.96B 2022 $2.33B 2023 $2.43B 2024 $3.49B 2025 $6.34B 2026
Data periodAssets under managementEmployeesFiling dated
October 2026$6,340,993,38016March 31, 2026
October 2025$3,491,460,20316March 5, 2025
October 2024$2,428,438,32015March 27, 2024
October 2023$2,328,921,15313March 29, 2023
October 2022$1,963,490,83011March 31, 2022
October 2021$1,401,492,17111June 24, 2021

Regulatory assets under management: $1,401,492,171 in the October 2021 data and $6,340,993,380 in the October 2026 data, up 352%.

Total employees: 11 in October 2021 and 16 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 $3,491,460,203 to $6,340,993,380 (+82%).

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
maplerockpartners.com

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. Maple Rock Capital Partners Inc. (CRD 173887): Form ADV filing data as of October 2026.
https://advisorcensus.com/firm/maple-rock-capital-partners-inc-toronto-173887