# 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.

- CRD: 173887
- Filed as: MAPLE ROCK CAPITAL PARTNERS INC.
- Registration: SEC-registered investment adviser (status as filed: Approved)
- Location: Toronto, Canada
- Filing period: October 2026
- Form ADV filing dated: March 31, 2026
- SEC record (IAPD): https://adviserinfo.sec.gov/firm/summary/173887
- AdvisorCensus page: https://advisorcensus.com/firm/maple-rock-capital-partners-inc-toronto-173887

## Quick answers

**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

### Compensation (Item 5.E)
- A percentage of assets under your management
- Performance-based fees

### Regulatory assets under management (Item 5.F)
- Total: $6,340,993,380
- Discretionary: $6,340,993,380
- Non-discretionary: $0

### Clients (Item 5.D)

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

### Advisory services (Item 5.G)
- Portfolio management for pooled investment vehicles (other than investment companies)

### Firm details
- Registered since: 2015 (11 years)
- Employees: 16 total, 10 performing advisory functions
- Wrap fee program participation: No
- Disclosures (Item 11): Reports 2 disclosure items on Form ADV Item 11.

### Item 11 questions answered yes
- 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. The detail of each yes answer is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/173887

### Other offices (Schedule D, Section 1.F), as of the April 2026 filing
- Corte Madera, CA

### Websites listed on Form ADV (Item 1.I)
- maplerockpartners.com
- LinkedIn @MAPLE-ROCK-CAPITAL-PARTNERS-INC.

## Assets and staff over time

| Data period | Regulatory assets under management | Employees | Filing dated |
| --- | --- | --- | --- |
| October 2021 | $1,401,492,171 | 11 | June 24, 2021 |
| October 2022 | $1,963,490,830 | 11 | March 31, 2022 |
| October 2023 | $2,328,921,153 | 13 | March 29, 2023 |
| October 2024 | $2,428,438,320 | 15 | March 27, 2024 |
| October 2025 | $3,491,460,203 | 16 | March 5, 2025 |
| October 2026 | $6,340,993,380 | 16 | March 31, 2026 |

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.

## Changes in the filing (last 12 months)

### April 2026
- Regulatory assets under management went from $3,491,460,203 to $6,340,993,380 (+82%).

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. Maple Rock Capital Partners Inc. (CRD 173887): Form ADV filing data as of October 2026.