Investor Boundary Creek Advisors LP
13D/G Filings

This page shows a list of all the recent 13D/G filings made by Boundary Creek Advisors LP . Schedule 13D is commonly referred to as a “beneficial ownership report.” The term "beneficial owner" is defined under SEC rules. It includes any person who directly or indirectly shares voting power or investment power (the power to sell the security).

When a person or group of persons acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities, they are required to file a Schedule 13D within ten days after the purchase. Click the link icon to see the full transaction history.

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Date Form Target Prev
Shares		 Current
Shares		 Change
(Percent)		 Ownership
(Percent)		 Change
(Percent)
2025-08-06 13G/A MATV / Mativ Holdings, Inc. 2,820,289 2,188,984
2025-05-13 13G/A MATV / Mativ Holdings, Inc. 3,800,054 2,820,289
2025-05-13 13G/A MERC / Mercer International Inc. 4,848,152 3,981,773
2024-11-08 13G/A MERC / Mercer International Inc. 5,659,409 4,848,152
2024-02-14 13G MATV / Mativ Holdings, Inc. 3,800,054
2024-02-14 13G MERC / Mercer International Inc. 5,659,409