Telesat CORP

MHR Fund Management and affiliated entities have amended their Schedule 13D filing concerning Telesat Corporation, detailing a series of transactions that restructured their beneficial ownership of Class B Shares.

A group of investment entities led by Mario Gabelli reported a 17.37% beneficial ownership stake in Telesat Corp.

A group of investment entities associated with Mario Gabelli, including GAMCO Investors, Inc. and Gabelli Funds LLC, have filed an amended Schedule 13D disclosing a combined beneficial ownership of 18.40% of Telesat Corp's Class A and Class B shares.

An amendment to Schedule 13D reveals that the Gabelli Group of investment entities has reduced its beneficial ownership in Telesat Corp, with significant net selling activity observed over the past sixty days.

Heard Capital LLC and William Heard have reported beneficial ownership of 4.16% of Telesat Corp's Class B Variable Voting Shares as of March 31, 2026.

Heard Capital LLC and William Heard report a beneficial ownership of 8.37% in Telesat Corp's Class B Variable Voting Shares as of December 31, 2025.

Heard Capital LLC and its affiliates have reported a 10.4% beneficial ownership stake in Telesat Corp's Class B Variable Voting Shares.

Heard Capital LLC and its affiliated entities have reported an 11.5% beneficial ownership stake in Telesat Corp's Class B Variable Voting Shares as of March 31, 2025.

Daniel Lau, Christine Man, and affiliated entities LM Asset (IM) Inc. and LM Asset Fund Limited Partnership have filed an amended Schedule 13G, disclosing their beneficial ownership in Telesat Corp as of March 31, 2025.

Greywolf Opportunities Master Fund II LP and affiliated entities have filed an amended Schedule 13G, reporting a 6.2% beneficial ownership stake in Telesat Corp's Class A and Class B shares as of December 31, 2024.