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Maple Rock Capital Partners Inc. Top Holdings and 13F Report (2026)

About Maple Rock Capital Partners Inc.

Investment Activity

  • Maple Rock Capital Partners Inc. has $5.10 billion in total holdings as of June 30, 2026.
  • Maple Rock Capital Partners Inc. owns shares of 51 different stocks, but just 25 companies or ETFs make up 80% of its holdings.
  • Approximately 32.79% of the portfolio was purchased this quarter.
  • About 19.26% of the portfolio was sold this quarter.
  • This quarter, Maple Rock Capital Partners Inc. has purchased 44 new stocks and bought additional shares in 25 stocks.
  • Maple Rock Capital Partners Inc. sold shares of 8 stocks and completely divested from 4 stocks this quarter.

Largest Holdings

Western Digital
$867,275,732
Seagate Technology
$290,621,330
UnitedHealth Group
$283,085,593
Humana
$249,553,862
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$208,382,516

Largest New Holdings this Quarter

G8267P108 - SMURFIT WESTROCK PLC
$120,659,865 Holding
74982T103 - RXO
$71,283,041 Holding
314352105 - FEDEX FGHT HLDG CO INC
$68,206,700 Holding
61945C103 - Mosaic
$56,789,200 Holding
750917106 - Rambus
$45,476,724 Holding

Largest Purchases this Quarter

UnitedHealth Group
465,700 shares (about $193.56M)
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864,300 shares (about $150.14M)
SMURFIT WESTROCK PLC
2,608,298 shares (about $120.66M)
Humana
283,451 shares (about $112.59M)
Nucor
496,788 shares (about $110.66M)

Largest Sales this Quarter

SANDISK CORP
164,594 shares (about $374.24M)
Seagate Technology
232,823 shares (about $224.67M)
Cleveland-Cliffs
17,662,400 shares (about $165.85M)
Lyft
2,062,352 shares (about $30.13M)
Western Digital
42,600 shares (about $27.21M)

Sector Allocation Over Time

Map of 500 Largest Holdings ofMaple Rock Capital Partners Inc.

 
 
Selling
 
 
Neutral
 
 
Buying
Issuer NameHoldings ValueApproximate Purchase/SaleChange in SharesShares Held% of PortfolioSector
Western Digital Corporation stock logo
WDC
Western Digital
$867,275,732$27,209,472 â–¼-3.0%1,357,83417.0%Technology
Seagate Technology Holdings PLC stock logo
STX
Seagate Technology
$290,621,330$224,674,195 â–¼-43.6%301,1625.7%Technology
UnitedHealth Group Incorporated stock logo
UNH
UnitedHealth Group
$283,085,593$193,558,891 â–²216.2%681,1005.6%Healthcare
Humana Inc. stock logo
HUM
Humana
$249,553,862$112,592,406 â–²82.2%628,2514.9%Healthcare
Icon Plc stock logo
ICLR
Icon
$208,382,516$150,137,553 â–²257.8%1,199,6004.1%Healthcare
TFI International Inc. stock logo
TFII
TFI International
$203,640,980$8,122,903 â–²4.2%1,418,4094.0%Industrials
Equinox Gold Corp. stock logo
EQX
Equinox Gold
$170,435,907$18,407,323 â–¼-9.7%17,531,2483.3%Materials
Advance Auto Parts, Inc. stock logo
AAP
Advance Auto Parts
$150,637,109$69,866,838 â–²86.5%2,421,0403.0%Consumer Discretionary
Brookdale Senior Living Inc. stock logo
BKD
Brookdale Senior Living
$143,010,301$11,761,790 â–²9.0%8,888,1482.8%Healthcare
Nucor Corporation stock logo
NUE
Nucor
$136,768,500$110,659,527 â–²423.8%614,0002.7%Materials
British American Tobacco p.l.c. stock logo
BTI
British American Tobacco
$133,772,160$35,629,344 â–²36.3%2,166,0002.6%Consumer Staples
ArcelorMittal stock logo
MT
ArcelorMittal
$131,933,589$46,766,551 â–²54.9%2,190,8602.6%Materials
CVS Health Corporation stock logo
CVS
CVS Health
$123,932,686$15,506,741 â–²14.3%1,197,9962.4%Healthcare
SMURFIT WESTROCK PLC
$120,659,865$120,659,865 â–²New Holding2,608,2982.4%SHS
Louisiana-Pacific Corporation stock logo
LPX
Louisiana-Pacific
$119,709,429$32,195,538 â–²36.8%1,521,8592.3%Materials
Centene Corporation stock logo
CNC
Centene
$88,702,813$46,557,007 â–²110.5%1,381,8791.7%Healthcare
Rocket Companies, Inc. stock logo
RKT
Rocket Companies
$87,311,700$37,963,800 â–²76.9%5,543,6001.7%Finance
Alcoa stock logo
AA
Alcoa
$82,262,321$35,163,216 â–²74.7%1,577,7201.6%Materials
ArcBest Corporation stock logo
ARCB
ArcBest
$76,900,981$18,861,156 â–²32.5%535,7461.5%Industrials
Elevance Health, Inc. stock logo
ELV
Elevance Health
$74,058,795$50,081,535 â–²208.9%191,5001.5%Healthcare
XPO, Inc. stock logo
XPO
XPO
$72,406,194$6,663,713 â–²10.1%352,7021.4%Industrials
Rxo Inc stock logo
RXO
RXO
$71,283,041$71,283,041 â–²New Holding2,583,6551.4%Industrials
Algoma Steel Group Inc. stock logo
ASTL
Algoma Steel Group
$68,290,363$3,770,550 â–²5.8%16,861,8181.3%Materials
FEDEX FGHT HLDG CO INC
$68,206,700$68,206,700 â–²New Holding451,7001.3%COMMON STOCK
JD.com, Inc. stock logo
JD
JD.com
$68,045,410$9,063,746 â–¼-11.8%2,670,5421.3%Consumer Discretionary
Werner Enterprises, Inc. stock logo
WERN
Werner Enterprises
$59,578,543$35,446,208 â–²146.9%1,366,1671.2%Industrials
Turning Point Brands, Inc. stock logo
TPB
Turning Point Brands
$58,247,508$21,270,348 â–²57.5%686,8001.1%Consumer Staples
Wabtec stock logo
WAB
Wabtec
$58,071,8400.0%215,4001.1%Industrials
The Mosaic Company stock logo
MOS
Mosaic
$56,789,200$56,789,200 â–²New Holding2,680,0001.1%Materials
Molina Healthcare, Inc stock logo
MOH
Molina Healthcare
$55,642,710$16,832,320 â–²43.4%243,3001.1%Healthcare
Fortune Brands Innovations, Inc. stock logo
FBIN
Fortune Brands Innovations
$54,695,882$28,026,450 â–²105.1%996,2821.1%Industrials
LKQ Corporation stock logo
LKQ
LKQ
$54,386,3260.0%2,065,5651.1%Consumer Discretionary
Sunrun Inc. stock logo
RUN
Sunrun
$49,433,052$9,264,954 â–²23.1%3,694,5481.0%Utilities
Winnebago Industries, Inc. stock logo
WGO
Winnebago Industries
$48,710,376$12,164,856 â–²33.3%1,559,2311.0%Consumer Discretionary
Rambus, Inc. stock logo
RMBS
Rambus
$45,476,724$45,476,724 â–²New Holding342,6000.9%Technology
Ingevity Corporation stock logo
NGVT
Ingevity
$45,048,6350.0%603,3030.9%Materials
Graphic Packaging Holding Company stock logo
GPK
Graphic Packaging
$43,334,886$43,334,886 â–²New Holding4,099,8000.8%Materials
Teck Resources Ltd stock logo
TECK
Teck Resources
$42,722,010$42,722,010 â–²New Holding718,5000.8%Materials
General Motors Company stock logo
GM
General Motors
$38,501,229$38,501,229 â–²New Holding499,4970.8%Consumer Discretionary
Thor Industries, Inc. stock logo
THO
Thor Industries
$34,713,6980.0%461,8640.7%Consumer Discretionary
TALEN ENERGY CORP
$30,856,078$30,856,078 â–²New Holding80,3000.6%COM
Las Vegas Sands Corp. stock logo
LVS
Las Vegas Sands
$30,615,8410.0%662,8240.6%Consumer Discretionary
Lyft, Inc. stock logo
LYFT
Lyft
$30,130,948$30,130,963 â–¼-50.0%2,062,3510.6%Industrials
Cleveland-Cliffs Inc. stock logo
CLF
Cleveland-Cliffs
$28,950,844$165,849,935 â–¼-85.1%3,083,1570.6%Materials
Knight-Swift Transportation Holdings Inc. stock logo
KNX
Knight-Swift Transportation
$28,507,8180.0%366,0950.6%Industrials
Academy Sports and Outdoors, Inc. stock logo
ASO
Academy Sports and Outdoors
$27,637,032$11,952,168 â–¼-30.2%586,4000.5%Consumer Discretionary
Amazon.com, Inc. stock logo
AMZN
Amazon.com
$25,740,720$25,740,720 â–²New Holding108,0000.5%Consumer Discretionary
Rayonier Advanced Materials Inc. stock logo
RYAM
Rayonier Advanced Materials
$25,599,1480.0%3,256,8890.5%Materials
Warrior Met Coal stock logo
HCC
Warrior Met Coal
$20,578,848$8,968,180 â–²77.2%253,5590.4%Materials
International Paper Company stock logo
IP
International Paper
$10,835,640$10,835,640 â–²New Holding284,4000.2%Materials
SANDISK CORP
$4,333,729$374,242,283 â–¼-98.9%1,9060.1%COM
The Goodyear Tire & Rubber Company stock logo
GT
Goodyear Tire & Rubber
$0$38,567,128 â–¼-100.0%00.0%Consumer Discretionary
B2Gold Corp stock logo
BTG
B2Gold
$0$36,958,458 â–¼-100.0%00.0%Materials
Whirlpool Corporation stock logo
WHR
Whirlpool
$0$31,985,344 â–¼-100.0%00.0%Consumer Discretionary
Avis Budget Group, Inc. stock logo
CAR
Avis Budget Group
$0$13,454,371 â–¼-100.0%00.0%Industrials

Showing largest 100 holdings. View all holdings.
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