Holders — by stockHoldings — by fund
Maple Rock Capital Partners Inc.
Everything this manager disclosed owning in US-listed stocks — its complete Form 13F portfolio · as of 2026-06-30 · filed with the SEC up to 45 days after quarter end · CIK 0001658363
$5.10B
disclosed book value
51
positions
17%
largest position share
Positions, as of 2026-06-30
top 51 of 51 · 13F covers long US-listed positions only — cash, bonds, private and foreign stakes are not disclosed · PUT/CALL tags = options positions (share-equivalents), not shares held
| # | Issuer | Shares | Value | % of book |
|---|---|---|---|---|
| 1 | WDCWESTERN DIGITAL CORP | 1.4M | $867.3M | 17% |
| 2 | SEAGATE TECHNOLOGY HLDNGS PL | 301,162 | $290.6M | 5.7% |
| 3 | UNHUNITEDHEALTH GROUP INC | 681,100 | $283.1M | 5.6% |
| 4 | HUMHUMANA INC | 628,251 | $249.6M | 4.9% |
| 5 | ICON PUB LTD CO | 1.2M | $208.4M | 4.1% |
| 6 | TFIITFI INTERNATIONAL INC | 1.4M | $203.6M | 4% |
| 7 | EQXEQUINOX GOLD CORP | 17.5M | $170.4M | 3.3% |
| 8 | AAPADVANCE AUTO PARTS INC | 2.4M | $150.6M | 3% |
| 9 | BKDBROOKDALE SR LIVING INC | 8.9M | $143.0M | 2.8% |
| 10 | NUENUCOR CORP | 614,000 | $136.8M | 2.7% |
| 11 | BTIBRITISH AMERN TOB PLC | 2.2M | $133.8M | 2.6% |
| 12 | MTARCELORMITTAL SA LUXEMBOURG | 2.2M | $131.9M | 2.6% |
| 13 | CVSCVS HEALTH CORP | 1.2M | $123.9M | 2.4% |
| 14 | SMURFIT WESTROCK PLC | 2.6M | $120.7M | 2.4% |
| 15 | LPXLOUISIANA PAC CORP | 1.5M | $119.7M | 2.3% |
| 16 | CNCCENTENE CORP DEL | 1.4M | $88.7M | 1.7% |
| 17 | RKTROCKET COS INC | 5.5M | $87.3M | 1.7% |
| 18 | AAALCOA CORP | 1.6M | $82.3M | 1.6% |
| 19 | ARCBARCBEST CORP | 535,746 | $76.9M | 1.5% |
| 20 | ELVELEVANCE HEALTH INC FORMERLY | 191,500 | $74.1M | 1.5% |
| 21 | XPOXPO INC | 352,702 | $72.4M | 1.4% |
| 22 | RXORXO INC | 2.6M | $71.3M | 1.4% |
| 23 | ASTLALGOMA STL GROUP INC | 16.9M | $68.3M | 1.3% |
| 24 | FDXFFEDEX FGHT HLDG CO INC | 451,700 | $68.2M | 1.3% |
| 25 | JDJD.COM INC | 2.7M | $68.0M | 1.3% |
| 26 | WERNWERNER ENTERPRISES INC | 1.4M | $59.6M | 1.2% |
| 27 | TPBTURNING PT BRANDS INC | 686,800 | $58.2M | 1.1% |
| 28 | WABWABTEC | 215,400 | $58.1M | 1.1% |
| 29 | MOSMOSAIC CO | 2.7M | $56.8M | 1.1% |
| 30 | MOHMOLINA HEALTHCARE INC | 243,300 | $55.6M | 1.1% |
| 31 | FBINFORTUNE BRANDS INNOVATIONS I | 996,282 | $54.7M | 1.1% |
| 32 | LKQLKQ CORP | 2.1M | $54.4M | 1.1% |
| 33 | RUNSUNRUN INC | 3.7M | $49.4M | 1% |
| 34 | WGOWINNEBAGO INDS INC | 1.6M | $48.7M | 1% |
| 35 | RMBSRAMBUS INC DEL | 342,600 | $45.5M | 0.9% |
| 36 | NGVTINGEVITY CORP | 603,303 | $45.0M | 0.9% |
| 37 | GPKGRAPHIC PACKAGING HLDG CO | 4.1M | $43.3M | 0.8% |
| 38 | TECKTECK RESOURCES LTD | 718,500 | $42.7M | 0.8% |
| 39 | GMGENERAL MTRS CO | 499,497 | $38.5M | 0.8% |
| 40 | THOTHOR INDS INC | 461,864 | $34.7M | 0.7% |
| 41 | TLNTALEN ENERGY CORP | 80,300 | $30.9M | 0.6% |
| 42 | LVSLAS VEGAS SANDS CORP | 662,824 | $30.6M | 0.6% |
| 43 | LYFTLYFT INC | 2.1M | $30.1M | 0.6% |
| 44 | CLFCLEVELAND-CLIFFS INC NEW | 3.1M | $29.0M | 0.6% |
| 45 | KNXKNIGHT-SWIFT TRANSN HLDGS IN | 366,095 | $28.5M | 0.6% |
| 46 | ASOACADEMY SPORTS & OUTDOORS IN | 586,400 | $27.6M | 0.5% |
| 47 | AMZNAMAZON COM INC | 108,000 | $25.7M | 0.5% |
| 48 | RYAMRAYONIER ADVANCED MATLS INC | 3.3M | $25.6M | 0.5% |
| 49 | HCCWARRIOR MET COAL INC | 253,559 | $20.6M | 0.4% |
| 50 | IPINTERNATIONAL PAPER CO | 284,400 | $10.8M | 0.2% |
| 51 | SNDKSANDISK CORP | 1,906 | $4.3M | 0.1% |
Source: SEC Form 13F-HR, reporting period 2026-06-30. Values are the manager's filed June-30-style quarter-end marks, not live prices. Research, not investment advice.