Msgs Spinco (MSGR): Mary S. Dolan, as a Trustee of certain trusts described herein disclosed a 13.2% stake in MSGR and may seek to influence the company 13.2%

13.2%

Stake

1.49M

Shares owned

Stake as of

Oct 26, 2026

Filed

Nov 2, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Oct 9, 2026Company filing · Form 8-K · Executive change, Other newsChanged a top executive or board member, and reported other company news
2. Oct 20, 2026Company filing · Form 8-K · Executive change, Bylaws or charterChanged a top executive or board member, and changed its bylaws, charter or fiscal year
3. Oct 23, 2026Company filing · Form 8-K · Material agreement, Executive changeChanged a top executive or board member, and signed an important agreement (and 2 more items)“On October 26, 2026, Alan D. Schwartz and Hans Vestberg were appointed to serve as members of the Audit Committee of the Company’s Board of Directors (the “Board”), and Mr. Schwartz was appointed as Chair of the Audit Committee.”

What came next

1. Nov 2, 20265% stakeMary S. Dolan, as a Trustee of certain trusts described herein filed an activist stake (13D) of 13.2%
2. Nov 4, 20265% stakeBlackRock, Inc. reported a passive stake (13G) of 10.0%
3. Nov 6, 2026Company filing · Form 8-K · ResultsReported its results
4. Nov 6, 20265% stakeT. Rowe Price Investment Management, Inc. reported a passive stake (13G) of 14.2%

How to read SEC Schedule 13D

A Schedule 13D and a Schedule 13G both disclose beneficial ownership of more than 5% of a US company's voting shares. A 13D is the long form, filed by holders who may seek to influence or control the company, and it must state what they intend to do. A 13G is the short form, open only to passive holders and to certain institutions holding in the ordinary course of business, and it asks no question about intent.

Full guide: Schedule 13D vs Schedule 13G: what is the difference?

What else is on file for Msgs Spinco

For Msgs Spinco, OQRO holds 2 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its MSGR page.

How this filing works

• Schedule 13D vs 13G

Other disclosures at Msgs Spinco

• SEC Schedule 13GNov 6, 2026

Everything OQRO holds on this company is on its MSGR page.