Maple Rock Capital Partners Inc.
- Regulatory AUM
- $6.3B
- Discretionary
- $6.3B
- Clients
- 3
- Avg AUM / client
- $2.1B
- Accounts
- 3
- Employees
- 16
AUM over time
Annual snapshots from Form ADV filings · as of Mar 31, 2026
Investments (13F portfolio — 44 positions, $3,073,484,583)
13F period Mar 31, 2026| # | Issuer | Class | Value | Shares | % of 13F | % of AUM |
|---|---|---|---|---|---|---|
| 1 | Western Digital Corp | COM | $378,803,393 | 1,400,434 | 12.3% | 5.97% |
| 2 | Equinox Gold Corp | COM | $280,786,442 | 19,424,648 | 9.14% | 4.43% |
| 3 | Seagate Technology Hldngs Pl | ORD SHS | $209,193,964 | 533,985 | 6.81% | 3.3% |
| 4 | Cleveland Cliffs Inc New | COM | $175,299,957 | 20,745,557 | 5.7% | 2.76% |
| 5 | Tfi Intl Inc | COM | $147,935,702 | 1,361,831 | 4.81% | 2.33% |
| 6 | Brookdale Sr Living Inc | COM | $111,589,785 | 8,157,148 | 3.63% | 1.76% |
| 7 | Sandisk Corp | COM | $105,784,110 | 166,500 | 3.44% | 1.67% |
| 8 | British Amern Tob Plc | SPONSORED ADR | $92,914,677 | 1,589,100 | 3.02% | 1.47% |
| 9 | Jd.Com Inc | SPON ADS CL A | $89,486,567 | 3,026,262 | 2.91% | 1.41% |
| 10 | Louisiana Pac Corp | COM | $80,938,667 | 1,112,559 | 2.63% | 1.28% |
| 11 | Cvs Health Corp | COM | $75,274,542 | 1,048,100 | 2.45% | 1.19% |
| 12 | Arcelormittal Sa Luxembourg | NY REGISTRY SH | $73,513,495 | 1,414,265 | 2.39% | 1.16% |
| 13 | Advance Auto Parts Inc | COM | $68,476,885 | 1,298,140 | 2.23% | 1.08% |
| 14 | Algoma Stl Group Inc | COM | $65,794,278 | 15,930,818 | 2.14% | 1.04% |
| 15 | Xpo Inc | COM | $62,303,081 | 320,242 | 2.03% | 0.98% |
| 16 | Lkq Corp | COM | $60,665,644 | 2,065,565 | 1.97% | 0.96% |
| 17 | Alcoa Corp | COM | $59,917,216 | 903,320 | 1.95% | 0.94% |
| 18 | Humana Inc | COM | $59,784,872 | 344,800 | 1.95% | 0.94% |
| 19 | Unitedhealth Group Inc | COM | $58,285,086 | 215,400 | 1.9% | 0.92% |
| 20 | Lyft Inc | CL A COM | $54,858,550 | 4,124,703 | 1.78% | 0.87% |
| 21 | Wabtec | COM | $53,830,614 | 215,400 | 1.75% | 0.85% |
| 22 | Academy Sports & Outdoors In | COM | $47,418,000 | 840,000 | 1.54% | 0.75% |
| 23 | Rocket Cos Inc | COM CL A | $44,648,100 | 3,133,200 | 1.45% | 0.7% |
| 24 | Ingevity Corp | COM | $42,973,273 | 603,303 | 1.4% | 0.68% |
| 25 | Sunrun Inc | COM | $40,708,476 | 3,002,100 | 1.32% | 0.64% |
Top 25 of 44 positions from the manager's latest Form 13F · source filing (EDGAR) ↗. 13F covers long US-listed positions only. "% of AUM" is share of the firm's total regulatory AUM (Form ADV Item 5.F).
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Pooled investment vehicles (non-investment companies) | 3 | $6.3B | 100.0% |
Private funds (1)
Reported in Form ADV Section 7.B.(1), filing of Mar 2024 · $2.4B combined gross assets
| Fund | Type | Domicile | Gross assets | Owners |
|---|---|---|---|---|
| Maple Rock Master Fund Lp master | Hedge Fund | Cayman Islands | $2.4B | 112 |
People (2)
| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Majic, Xavier, George | Chief Executive Officer, Chief Investment Officer | Apr 2014 (12y) | ≈ 56.25% – 100% via Three Sisters Holdings Inc. | |
| Lane, Stephen, Dengler | Chief Financial Officer, Chief Compliance Officer | Jun 2018 (8y) | Less than 5% |
Entity owners (Schedule A/B)
| Entity | Title / status | Since | Sch. | Ownership |
|---|---|---|---|---|
| Three Sisters Holdings Inc. | Sole Shareholder | Mar 2021 | A | 75% or more |
Undisclosed: 0% – 25% of the firm is not attributable from the filed Schedule A bands.
Estimated effective ownership (look-through of filed bands):
- Majic, Xavier, George: 75% – 100% of Three Sisters Holdings Inc. × 75% – 100% direct ≈ 56.25% – 100% of the firm
Roster from the IAPD representatives feed; ownership and acquisition dates from Form ADV Schedule A/B. "Since" is the earliest filed registration or acquisition date.
Private funds (1, $2.4B gross assets)
| Fund | Type | Gross assets | Min. investment | Owners |
|---|---|---|---|---|
| Maple Rock Master Fund Lp | Hedge Fund | $2.4B | $10.0M | 112 |
From Form ADV Section 7.B private fund reporting.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 03/31/2026 | 1.43 MB | View · PDF · Source ↗ |
Archived copies of the firm's regulatory filings, versioned by content hash.
Disciplinary disclosures
Allegations: MAPLE ROCK RECEIVED A LETTER FROM FINANSTILSYNET NOTING THAT MAPLE ROCK HAD VIOLATED THE NOTIFICATION REQUIREMENT UNDER SECTION 3-5 OF THE NORWEGIAN SECURITIES TRADING ACT, CF. REGULATION (EU) NO 236/2012 ("SSR") ARTICLE 5 CF. ARTICLE 9, BY NOT NOTIFYING FINANSTILSYNET WITHIN THE TIME LIMIT SET OUT IN THE SSR OF THE RELEVANT NET SHORT POSITIONS. UNDER THIS PROVISION, FIRMS ARE REQUIRED TO NOTIFY FINANSTILSYNET OF CERTAIN NET SHORT POSITIONS NO LATER THAN 15:30 CET ON THE FOLLOWING TRADING DAY. DUE TO DELAYS IN RESOLVING TECHNICAL ISSUES WITH FINANSTILSYNET, MAPLE ROCK NOTIFIED FINANSTILSYNET OF NET SHORT POSITIONS AFTER THE DEADLINE. MAPLE ROCK DID NOT APPEAL FINANSTILSYNET'S DECISION REGARDING THE VIOLATION PENALTY OR THE RESULTING CLAIM. Status: Final Sanction Detail: MAPLE ROCK PAID THE CLAIM AMOUNT OF NOK 10,000 (APPROX. USD 1,100) ON MARCH 21, 2022. Summary: IN ADDITION TO PAYING THE CLAIM AMOUNT OUTLINED ABOVE, MAPLE ROCK BOLSTERED ITS OPERATIONS BY IMPLEMENTING ADDITIONAL SUPERVISORY AND CHECKLIST CONTROLS TO ENSURE TIMELY AND ACCURATE FILINGS. NO FURTHER ACTIONS ARE REQUIRED.
Disclosure text reproduced verbatim from the firm's own Form ADV filings.
How they charge
- • Percentage of assets under management
- • Performance-based fees
Services
- • Portfolio management for pooled investment vehicles
Custody
Firm reports having custody of client funds or securities (Item 9.A).
No custodian data reported or mined yet.
Source
All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Mar 31, 2026.
View current Form ADV (SEC/IAPD) ↗