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5%+ stakes · Schedule 13D and 13G

Telesat Corporation: 5%+ holders

Who has reported owning 5% or more of Telesat Corporation, from Schedule 13D and 13G filings: each holder's stake as filed, the timeline, and the purpose each 13D states, quoted.

At 5% or more2
Filings6
Latest filing2026-08-14

Telesat Corporation has 6 Schedule 13D or 13G filings on record since 2025-08-14. 2 holders' latest filing reports 5% or more of class a common shares and class b variable voting shares, no par value per share. Each figure below is the holder's own, as filed, with the filing linked.

Holders

HolderPercentSharesLatestEvent date
Mhr Fund Management LLC35.5%18,035,092SCHEDULE 13D/A, 2026-07-092026-07-08
Gamco Investors, Inc. Et Al11.6%1,200SCHEDULE 13D/A, 2026-04-022026-03-31
Heard Capital LLC4.16%610,570SCHEDULE 13G/A, 2026-05-152026-03-31
Rubric Capital Management LP0%0SCHEDULE 13G/A, 2026-08-142026-06-30

Purpose of Transaction (Item 4)

Gamco Investors, Inc. Et Al

The Reporting Persons file the long form Schedule 13D pursuant to Section 13d-1 of the Securities Exchange Act of 1934 (the "Act") even though they may be technically eligible to file the short form Schedule G. Because the Reporting Persons may regularly communicate with the Issuer's management, filing the Schedule 13D ensures that these conversations are compliant with the reporting obligations under the Exchange Act.Item 4 of the SCHEDULE 13D/A filed 2026-04-02

Mhr Fund Management LLC

Item 4 is hereby amended and restated as follows. All of the Class B Shares reported on this Schedule 13D were acquired for investment purposes. The Reporting Persons intend to review their holdings in the Issuer on a continuing basis and as part of this ongoing review evaluate various alternatives that are or may become available with respect to the Issuer and its securities. Except as otherwise set forth in this Schedule 13D, neither the Reporting Persons nor, to the best of their knowledge, any of the other persons identified in response to Item 2 hereof, has any plans or proposals that relate to or would result in the occurrence of any of the transactions described in subparagraphs (b) through (j) of Item 4 of Schedule 13D. (a) The Reporting Persons may from time to time and at any time (in accordance with any trading policy of the Issuer or its subsidiaries and affiliates that may then be applicable to the Reporting Persons) in their sole discretion acquire, or cause to be acquired, additional equity or debt securities or other instruments of the Issuer, its subsidiaries or affiliates, or dispose, or cause to be disposed, such equity or debt securities or instruments, in any amount that the Reporting Persons may determine in their sole discretion, through public or private transactions or otherwise. The Reporting Persons reserve the right to and may, from time to time and at any time, in their sole discretion, formulate and implement other purposes, plans or …The first part of Item 4 of the SCHEDULE 13D/A filed 2026-07-09; the filing has the rest

Timeline

FiledHolderPercentFiling
2025-08-14Heard Capital LLC10.4%SCHEDULE 13G/A
2026-02-17Heard Capital LLC8.37%SCHEDULE 13G/A
2026-04-02Gamco Investors, Inc. Et Al11.6%SCHEDULE 13D/A
2026-05-15Heard Capital LLC4.16%SCHEDULE 13G/A
2026-07-09Mhr Fund Management LLC35.5%SCHEDULE 13D/A
2026-08-14Rubric Capital Management LP0%SCHEDULE 13G/A

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Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

Cite this page

Permanent URL: https://mentionfox.com/stakes/telesat
Last updated 2026-09-27
Primary record: SEC filing 1 · SEC filing 2 · SEC filing 3 · SEC filing 4
Telesat Corporation 5%+ holders: 2 at 5% or more, largest Mhr Fund Management LLC 35.5%. MentionFox, 2026-09-27. https://mentionfox.com/stakes/telesat