Maple Rock Capital Partners Inc. — 13F Holdings & Portfolio
CIK 1658363 · latest 13F-HR filed 2026-05-15
Maple Rock Capital Partners Inc. manages $3.07B in 13F-reported U.S. long-equity assets across 44 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are WDC (12.32%), EQX (9.14%), STX (6.81%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 13 new positions, exited 7, added to 17, and trimmed 11.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$3.07B
Long-equity book
44
Distinct positions
2026-03-31
Filed 2026-05-15
+13 / −7 / ↑17 / ↓11
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- UNITEDHEALTH GROUP INC$40.1M +221.0%
- JD.COM INC$34.4M +62.4%
- LOUISIANA PAC CORP$33.4M +70.2%
- ARCBEST CORP$29.1M +272.9%
- LKQ CORP$29.0M +91.8%
Top Trims
- WARRIOR MET COAL INC-$131.0M -90.8%
- ALCOA CORP-$113.5M -65.4%
- SUNRUN INC-$57.2M -58.4%
- LAS VEGAS SANDS CORP-$54.2M -60.3%
- WESTERN DIGITAL CORP-$31.5M -7.7%
New Positions
- TFI INTL INC$147.9M
- XPO INC$62.3M
- WABTEC$53.8M
- ACADEMY SPORTS & OUTDOORS IN$47.4M
- ICON PLC$37.1M
Exited Positions
- SEALED AIR CORP NEW$87.2M
- BARRICK MNG CORP$86.7M
- TECK RESOURCES LTD$66.7M
- PDD HOLDINGS INC$34.8M
- PAGSEGURO DIGITAL LTD$32.4M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | WESTERN DIGITAL CORP | WDC | 958102105 | $378.8M | 12.32% | 1,400,434 | SH |
| 2 | EQUINOX GOLD CORP | EQX | 29446Y502 | $280.8M | 9.14% | 19,424,648 | SH |
| 3 | SEAGATE TECHNOLOGY HLDNGS PL | STX | G7997R103 | $209.2M | 6.81% | 533,985 | SH |
| 4 | CLEVELAND-CLIFFS INC NEW | CLF | 185899101 | $175.3M | 5.70% | 20,745,557 | SH |
| 5 | TFI INTL INC | TFII | 87241L109 | $147.9M | 4.81% | 1,361,831 | SH |
| 6 | BROOKDALE SR LIVING INC | BKD | 112463104 | $111.6M | 3.63% | 8,157,148 | SH |
| 7 | SANDISK CORP | SNDK | 80004C200 | $105.8M | 3.44% | 166,500 | SH |
| 8 | BRITISH AMERN TOB PLC | BTI | 110448107 | $92.9M | 3.02% | 1,589,100 | SH |
| 9 | JD.COM INC | JD | 47215P106 | $89.5M | 2.91% | 3,026,262 | SH |
| 10 | LOUISIANA PAC CORP | LPX | 546347105 | $80.9M | 2.63% | 1,112,559 | SH |
| 11 | CVS HEALTH CORP | CVS | 126650100 | $75.3M | 2.45% | 1,048,100 | SH |
| 12 | ARCELORMITTAL SA LUXEMBOURG | MT | 03938L203 | $73.5M | 2.39% | 1,414,265 | SH |
| 13 | ADVANCE AUTO PARTS INC | AAP | 00751Y106 | $68.5M | 2.23% | 1,298,140 | SH |
| 14 | ALGOMA STL GROUP INC | ASTL | 015658107 | $65.8M | 2.14% | 15,930,818 | SH |
| 15 | XPO INC | XPO | 983793100 | $62.3M | 2.03% | 320,242 | SH |
| 16 | LKQ CORP | LKQ | 501889208 | $60.7M | 1.97% | 2,065,565 | SH |
| 17 | ALCOA CORP | AA | 013872106 | $59.9M | 1.95% | 903,320 | SH |
| 18 | HUMANA INC | HUM | 444859102 | $59.8M | 1.95% | 344,800 | SH |
| 19 | UNITEDHEALTH GROUP INC | UNH | 91324P102 | $58.3M | 1.90% | 215,400 | SH |
| 20 | LYFT INC | LYFT | 55087P104 | $54.9M | 1.78% | 4,124,703 | SH |
| 21 | WABTEC | WAB | 929740108 | $53.8M | 1.75% | 215,400 | SH |
| 22 | ACADEMY SPORTS & OUTDOORS IN | ASO | 00402L107 | $47.4M | 1.54% | 840,000 | SH |
| 23 | ROCKET COS INC | RKT | 77311W101 | $44.6M | 1.45% | 3,133,200 | SH |
| 24 | INGEVITY CORP | NGVT | 45688C107 | $43.0M | 1.40% | 603,303 | SH |
| 25 | SUNRUN INC | RUN | 86771W105 | $40.7M | 1.32% | 3,002,100 | SH |
| 26 | ARCBEST CORP | ARCB | 03937C105 | $39.8M | 1.29% | 404,346 | SH |
| 27 | GOODYEAR TIRE & RUBR CO | GT | 382550101 | $38.6M | 1.25% | 5,817,063 | SH |
| 28 | TURNING PT BRANDS INC | TPB | 90041L105 | $37.8M | 1.23% | 436,000 | SH |
| 29 | ICON PLC | ICLR | G4705A100 | $37.1M | 1.21% | 335,300 | SH |
| 30 | B2GOLD CORP | BTG | 11777Q209 | $37.0M | 1.20% | 8,158,600 | SH |
| 31 | THOR INDS INC | THO | 885160101 | $36.9M | 1.20% | 461,864 | SH |
| 32 | WINNEBAGO INDS INC | WGO | 974637100 | $36.3M | 1.18% | 1,169,831 | SH |
| 33 | RAYONIER ADVANCED MATLS INC | RYAM | 75508B104 | $36.1M | 1.17% | 3,256,889 | SH |
| 34 | LAS VEGAS SANDS CORP | LVS | 517834107 | $35.7M | 1.16% | 662,824 | SH |
| 35 | WHIRLPOOL CORP | WHR | 963320106 | $32.0M | 1.04% | 593,200 | SH |
| 36 | MOLINA HEALTHCARE INC | MOH | 60855R100 | $22.6M | 0.74% | 169,700 | SH |
| 37 | CENTENE CORP DEL | CNC | 15135B101 | $21.5M | 0.70% | 656,579 | SH |
| 38 | KNIGHT-SWIFT TRANSN HLDGS IN | KNX | 499049104 | $21.1M | 0.69% | 366,095 | SH |
| 39 | NUCOR CORP | NUE | 670346105 | $19.8M | 0.64% | 117,212 | SH |
| 40 | FORTUNE BRANDS INNOVATIONS I | FBIN | 34964C106 | $18.9M | 0.62% | 485,782 | SH |
| 41 | ELEVANCE HEALTH INC FORMERLY | ELV | 036752103 | $18.2M | 0.59% | 62,000 | SH |
| 42 | WERNER ENTERPRISES INC | WERN | 950755108 | $16.3M | 0.53% | 553,367 | SH |
| 43 | AVIS BUDGET GROUP INC | CAR | 053774105 | $13.5M | 0.44% | 92,248 | SH |
| 44 | WARRIOR MET COAL INC | HCC | 93627C101 | $13.3M | 0.43% | 143,059 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-15 | $3.07B | 44 | 0001658363-26-000005 |
| 2025-12-31 | 2026-02-17 | $3.03B | 38 | 0001658363-26-000003 |
| 2025-09-30 | 2025-11-14 | $2.53B | 41 | 0001658363-25-000005 |