SEC 13F Intelligence

Managers / Q2 2021 · view latest →

Maple Rock Capital Partners Inc.

CIK 0001658363 · 21 ST. CLAIR AVENUE EAST, SUITE 1100, TORONTO, A6, M4T 1L9 · 416-572-3899

Reported Value
$665M
Q2 2021
Positions
20
Filings on Record
30
2019–present window
Filed
Aug 16, 2021
original filing

Summary

Maple Rock Capital Partners Inc. reported $665M in U.S.-listed holdings across 20 positions for Q2 2021.

Its largest position, OVV, represents 11.0% of the portfolio.

Compared with Q1 2021, the fund opened 4 new positions and exited 6.

Portfolio Metrics

Turnover
+29.5%
vs prior filed quarter
Top-10 Concentration
+77.2%
share of reported value
Largest Position
+11.0%
Ovintiv
New / Exited
4 / 6
positions this quarter

Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.

Reported Value by Quarter

13F Reported Value
Q4 ’18: $282MQ4 ’18Q1 ’19: $341MQ2 ’19: $604MQ3 ’19: $746MQ4 ’19: $657MQ4 ’19Q1 ’20: $390MQ2 ’20: $500MQ3 ’20: $547MQ4 ’20: $689MQ4 ’20Q1 ’21: $689MQ2 ’21: $665MQ3 ’21: $714MQ4 ’21: $936MQ4 ’21Q1 ’22: $1.9BQ2 ’22: $1.7BQ3 ’22: $2.1BQ4 ’22: $2.5BQ4 ’22Q1 ’23: $1.1BQ2 ’23: $1.2BQ3 ’23: $1.1BQ4 ’23: $1.8BQ4 ’23Q1 ’24: $1.8BQ2 ’24: $3.0BQ3 ’24: $3.5BQ4 ’24: $3.3BQ4 ’24Q1 ’25: $2.7BQ2 ’25: $2.0BQ3 ’25: $2.5BQ4 ’25: $3.0BQ4 ’25Q1 ’26: $3.1Bfilingsflow.com

Portfolio Composition

By security type
Common Stock: 85.0%Other: 9.4%Equity WRT: 2.9%ADR: 2.8%
  • Common Stock · 85.0% · $565M
  • Other · 9.4% · $62M
  • Equity WRT · 2.9% · $19M
  • ADR · 2.8% · $19M

Quarter-over-Quarter Changes full breakdown →

vs Q1 2021 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
8LP1LAREDO PETROLEUM INCNEW+410.0K410.0K+$38M$38M
KOSKOSMOS ENERGY LTDNEW+5.29M5.29M+$18M$18M
AMRALPHA METALLURGICAL RESOUR INEW+555.0K555.0K+$14M$14M
ERFGBPENERPLUS CORPNEW+1.80M1.80M+$13M$13M
AAWWUSDATLAS AIR WORLDWIDE HLDGS INSOLD OUT−503.9K0−$30M$0
ARCELORMITTAL SA LUXEMBOURGSOLD OUT−980.0K0−$29M$0
CLFCLEVELAND-CLIFFS INC NEWSOLD OUT−905.0K0−$18M$0
MERCMERCER INTL INCSOLD OUT−1.26M0−$18M$0

Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.

Holdings — Q2 2021

18 positions
Export to Excel
#IssuerClass% PortfolioValue ↓Shares
1OVVOVINTIV INChistory →COM11.01%$73M2.33M
2WDCWESTERN DIGITAL CORP.history →COM10.98%$73M1.03M
3TRONOX HOLDINGS PLCSHS9.39%$62M2.79M
4NGVTINGEVITY CORPhistory →COM8.68%$58M710.0K
5EXECHESAPEAKE ENERGY CORPCOM · *W EXP 99/99/999 · *W EXP 09/02/2027.50%$50M1.43M
6S9QSPIRIT AEROSYSTEMS HLDGS INChistory →COM CL A7.12%$47M1.00M
7TG7TRIUMPH GROUP INC NEWhistory →COM6.80%$45M2.18M
8ARCH1USDARCH RESOURCES INChistory →CL A6.72%$45M785.0K
9SMSM ENERGY COhistory →COM6.12%$41M1.65M
108LP1LAREDO PETROLEUM INChistory →COM5.72%$38M410.0K
11TFIITFI INTL INChistory →COM3.84%$26M280.1K
12LAURLAUREATE EDUCATION INChistory →CL A3.75%$25M1.72M
13SBSWSIBANYE STILLWATER LTDhistory →SPONSORED ADR2.80%$19M1.11M
14KOSKOSMOS ENERGY LTDhistory →COM2.75%$18M5.29M
15AMRALPHA METALLURGICAL RESOUR Ihistory →COM2.14%$14M555.0K
16ERFGBPENERPLUS CORPhistory →COM1.95%$13M1.80M
17DOORUSDMASONITE INTL CORPhistory →COM1.87%$12M111.0K
18PDCEUSDPDC ENERGY INCCOM0.88%$6M128.5K

Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$3.1B44May 15, 202613F-HRchanges · EDGAR ↗
Q4 2025$3.0B38Feb 17, 202613F-HRchanges · EDGAR ↗
Q3 2025$2.5B41Nov 14, 202513F-HRchanges · EDGAR ↗
Q2 2025$2.0B40Aug 14, 202513F-HRchanges · EDGAR ↗
Q1 2025$2.7B41May 15, 202513F-HRchanges · EDGAR ↗
Q4 2024$3.3B36Feb 14, 202513F-HRchanges · EDGAR ↗
Q3 2024$3.5B33Nov 14, 202413F-HRchanges · EDGAR ↗
Q2 2024$3.0B34Aug 14, 202413F-HRchanges · EDGAR ↗
Q1 2024$1.8B31May 15, 202413F-HRchanges · EDGAR ↗
Q4 2023$1.8B33Feb 14, 202413F-HRchanges · EDGAR ↗
Q3 2023$1.1B26Nov 14, 202313F-HRchanges · EDGAR ↗
Q2 2023$1.2B22Aug 14, 202313F-HRchanges · EDGAR ↗
Q1 2023$1.1B31May 15, 202313F-HRchanges · EDGAR ↗
Q4 2022$2.5B32Feb 14, 202313F-HRchanges · EDGAR ↗
Q3 2022$2.1B36Nov 14, 202213F-HRchanges · EDGAR ↗
Q2 2022$1.7B30Aug 15, 202213F-HRchanges · EDGAR ↗
Q1 2022$1.9B26May 16, 202213F-HRchanges · EDGAR ↗
Q4 2021$936M25Feb 14, 202213F-HRchanges · EDGAR ↗
Q3 2021$714M22Nov 15, 202113F-HRchanges · EDGAR ↗
Q2 2021$665M20Aug 16, 202113F-HRchanges · EDGAR ↗
Q1 2021$689M22May 17, 202113F-HRchanges · EDGAR ↗
Q4 2020$689M27Feb 16, 202113F-HRchanges · EDGAR ↗
Q3 2020$547M25Nov 16, 202013F-HRchanges · EDGAR ↗
Q2 2020$500M25Aug 14, 202013F-HRchanges · EDGAR ↗
Q1 2020$390M25May 15, 202013F-HRchanges · EDGAR ↗
Q4 2019$657M21Feb 14, 202013F-HRchanges · EDGAR ↗
Q3 2019$746M18Nov 14, 201913F-HRchanges · EDGAR ↗
Q2 2019$604M15Aug 14, 201913F-HRchanges · EDGAR ↗
Q1 2019$341M13May 15, 201913F-HRchanges · EDGAR ↗
Q4 2018$282M11Feb 14, 201913F-HRchanges · EDGAR ↗

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.