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Maple Rock Capital Partners Inc.

Activist investor & 5%+ owner · SC 13D/13G filings

Total Filings

15

Stocks Covered

5

Latest Filing

Nov 7, 2025

Filings

Algoma Steel Group Inc.

SC 13G/A · Nov 7, 2025

13.3%

14.0M shares

Algoma Steel Group Inc.

SC 13G · Aug 28, 2025

9.9%

10.4M shares

HUYA Inc.

SC 13G/A · Feb 14, 2025

0.0%

0 shares

Groupon, Inc.

SC 13G/A · Nov 14, 2024

0.0%

0 shares

HUYA Inc.

SC 13G · Nov 14, 2024

6.8%

5.1M shares

ALGOMA STEEL GROUP INC.

SC 13D · Oct 25, 2024

5.9%

6.1M shares

Groupon, Inc.

SC 13G/A · Feb 14, 2024

7.8%

2.5M shares

ALGOMA STEEL GROUP INC.

SC 13G/A · Feb 14, 2024

5.9%

6.1M shares

Groupon, Inc.

SC 13G · Feb 14, 2023

9.9%

3.0M shares

ALGOMA STEEL GROUP INC.

SC 13G · Feb 14, 2023

6.3%

6.5M shares

Arch Resources, Inc.

SC 13G/A · Feb 14, 2023

1.8%

328K shares

Groupon, Inc.

SC 13G/A · Dec 9, 2022

3.3%

1.0M shares

Groupon, Inc.

SC 13G · Aug 15, 2022

13.8%

4.1M shares

SM Energy Co.

SC 13G/A · Feb 14, 2022

0.0%

0 shares

Arch Resources, Inc.

SC 13G · Feb 14, 2022

5.2%

790K shares